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gdb/gdb-6.7.1-upstream.patch

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Fix:
FAIL: gdb.arch/powerpc-power6.exp: Power6 disassembly dsub
FAIL: gdb.arch/powerpc-power6.exp: Power6 disassembly dmul
FAIL: gdb.arch/powerpc-power6.exp: Power6 disassembly ddiv
FAIL: gdb.arch/powerpc-power6.exp: Power6 disassembly dcmpu
2007-10-15 Peter Bergner <bergner@vnet.ibm.com>
* ppc-opc.c (powerpc_opcodes): Fix the first two operands of
dquaiq. to use the TE and FRT macros.
--- ./opcodes/ppc-opc.c 16 Oct 2007 02:26:30 -0000 1.100
+++ ./opcodes/ppc-opc.c 16 Oct 2007 02:55:30 -0000 1.101
@@ -4680,7 +4680,7 @@ const struct powerpc_opcode powerpc_opco
{ "dscliq.", ZRC(63,66,1), Z_MASK, POWER6, { FRT, FRA, SH16 } },
{ "dquaiq", ZRC(63,67,0), Z2_MASK, POWER6, { TE, FRT, FRB, RMC } },
-{ "dquaiq.", ZRC(63,67,1), Z2_MASK, POWER6, { FRT, FRA, FRB, RMC } },
+{ "dquaiq.", ZRC(63,67,1), Z2_MASK, POWER6, { TE, FRT, FRB, RMC } },
{ "mtfsb0", XRC(63,70,0), XRARB_MASK, COM, { BT } },
{ "mtfsb0.", XRC(63,70,1), XRARB_MASK, COM, { BT } },
2007-10-15 Peter Bergner <bergner@vnet.ibm.com>
* ppc-opc.c (TE): Correct signedness.
(powerpc_opcodes): Sort psq_st and psq_stu according to major
opcode number.
--- ./opcodes/ppc-opc.c 24 Aug 2007 00:56:30 -0000 1.99
+++ ./opcodes/ppc-opc.c 16 Oct 2007 02:26:30 -0000 1.100
@@ -492,13 +492,13 @@ const struct powerpc_operand powerpc_ope
#define VS VD
{ 0x1f, 21, NULL, NULL, PPC_OPERAND_VR },
- /* The SIMM field in a VX form instruction. */
+ /* The SIMM field in a VX form instruction, and TE in Z form. */
#define SIMM VD + 1
+#define TE SIMM
{ 0x1f, 16, NULL, NULL, PPC_OPERAND_SIGNED},
- /* The UIMM field in a VX form instruction, and TE in Z form. */
+ /* The UIMM field in a VX form instruction. */
#define UIMM SIMM + 1
-#define TE UIMM
{ 0x1f, 16, NULL, NULL, 0 },
/* The SHB field in a VA form instruction. */
@@ -4495,9 +4495,6 @@ const struct powerpc_opcode powerpc_opco
{ "fnmadds", A(59,31,0), A_MASK, PPC, { FRT,FRA,FRC,FRB } },
{ "fnmadds.",A(59,31,1), A_MASK, PPC, { FRT,FRA,FRC,FRB } },
-{ "psq_st", OP(60), OP_MASK, PPCPS, { FRS, PSD, RA, PSW, PSQ } },
-{ "psq_stu", OP(61), OP_MASK, PPCPS, { FRS, PSD, RA, PSW, PSQ } },
-
{ "dmul", XRC(59,34,0), X_MASK, POWER6, { FRT, FRA, FRB } },
{ "dmul.", XRC(59,34,1), X_MASK, POWER6, { FRT, FRA, FRB } },
@@ -4561,6 +4558,9 @@ const struct powerpc_opcode powerpc_opco
{ "stfq", OP(60), OP_MASK, POWER2, { FRS, D, RA } },
+{ "psq_st", OP(60), OP_MASK, PPCPS, { FRS, PSD, RA, PSW, PSQ } },
+{ "psq_stu", OP(61), OP_MASK, PPCPS, { FRS, PSD, RA, PSW, PSQ } },
+
{ "stfqu", OP(61), OP_MASK, POWER2, { FRS, D, RA } },
{ "stfdp", OP(61), OP_MASK, POWER6, { FRT, D, RA0 } },
2007-09-22 Vladimir Prus <vladimir@codesourcery.com>
Associate bp_stat with bp_location, not breakpoint.
* breakpoint.h (breakpoint_at): Change type
to bp_location*.
* breakpoint.c (bpstat_alloc): Take bp_location,
not breakpoint.
(bpstat_find_breakpoint): Look at bpstat's location's
owner, not at bpstat->breakpoint_at.
(bpstat_find_step_resume_breakpoint): Likewise.
(bpstat_num): Likewise.
(print_it_typical): Likewise.
(print_bp_stop_message): Likewise.
(watchpoint_check): Likewise.
(bpstat_what): Likewise.
(bpstat_get_triggered_catchpoints): Likewise.
(breakpoint_auto_delete): Likewise.
(delete_breakpoint): Likewise.
(bpstat_stop_status): Pass location, not breakpoint,
to bpstat_alloc. Look at bpstat's location's
owner, not at bpstat->breakpoint_at.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.263
retrieving revision 1.264
diff -u -r1.263 -r1.264
--- src/gdb/breakpoint.c 2007/08/29 22:07:47 1.263
+++ src/gdb/breakpoint.c 2007/09/22 17:49:40 1.264
@@ -109,7 +109,7 @@
static void breakpoint_1 (int, int);
-static bpstat bpstat_alloc (struct breakpoint *, bpstat);
+static bpstat bpstat_alloc (struct bp_location *, bpstat);
static int breakpoint_cond_eval (void *);
@@ -1968,7 +1968,7 @@
for (; bsp != NULL; bsp = bsp->next)
{
- if (bsp->breakpoint_at == breakpoint)
+ if (bsp->breakpoint_at && bsp->breakpoint_at->owner == breakpoint)
return bsp;
}
return NULL;
@@ -1994,10 +1994,10 @@
for (; bsp != NULL; bsp = bsp->next)
{
if ((bsp->breakpoint_at != NULL) &&
- (bsp->breakpoint_at->type == bp_step_resume) &&
- (bsp->breakpoint_at->thread == current_thread ||
- bsp->breakpoint_at->thread == -1))
- return bsp->breakpoint_at;
+ (bsp->breakpoint_at->owner->type == bp_step_resume) &&
+ (bsp->breakpoint_at->owner->thread == current_thread ||
+ bsp->breakpoint_at->owner->thread == -1))
+ return bsp->breakpoint_at->owner;
}
internal_error (__FILE__, __LINE__, _("No step_resume breakpoint found."));
@@ -2021,7 +2021,11 @@
if ((*bsp) == NULL)
return 0; /* No more breakpoint values */
- b = (*bsp)->breakpoint_at;
+ /* We assume we'll never have several bpstats that
+ correspond to a single breakpoint -- otherwise,
+ this function might return the same number more
+ than once and this will look ugly. */
+ b = (*bsp)->breakpoint_at ? (*bsp)->breakpoint_at->owner : NULL;
*bsp = (*bsp)->next;
if (b == NULL)
return -1; /* breakpoint that's been deleted since */
@@ -2152,6 +2156,7 @@
print_it_typical (bpstat bs)
{
struct cleanup *old_chain, *ui_out_chain;
+ struct breakpoint *b;
struct ui_stream *stb;
stb = ui_out_stream_new (uiout);
old_chain = make_cleanup_ui_out_stream_delete (stb);
@@ -2159,21 +2164,22 @@
which has since been deleted. */
if (bs->breakpoint_at == NULL)
return PRINT_UNKNOWN;
+ b = bs->breakpoint_at->owner;
- switch (bs->breakpoint_at->type)
+ switch (b->type)
{
case bp_breakpoint:
case bp_hardware_breakpoint:
- if (bs->breakpoint_at->loc->address != bs->breakpoint_at->loc->requested_address)
- breakpoint_adjustment_warning (bs->breakpoint_at->loc->requested_address,
- bs->breakpoint_at->loc->address,
- bs->breakpoint_at->number, 1);
- annotate_breakpoint (bs->breakpoint_at->number);
+ if (b->loc->address != b->loc->requested_address)
+ breakpoint_adjustment_warning (b->loc->requested_address,
+ b->loc->address,
+ b->number, 1);
+ annotate_breakpoint (b->number);
ui_out_text (uiout, "\nBreakpoint ");
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string (uiout, "reason",
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
- ui_out_field_int (uiout, "bkptno", bs->breakpoint_at->number);
+ ui_out_field_int (uiout, "bkptno", b->number);
ui_out_text (uiout, ", ");
return PRINT_SRC_AND_LOC;
break;
@@ -2200,42 +2206,42 @@
break;
case bp_catch_load:
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (loaded %s), "),
- bs->breakpoint_at->number,
- bs->breakpoint_at->triggered_dll_pathname);
+ b->number,
+ b->triggered_dll_pathname);
return PRINT_SRC_AND_LOC;
break;
case bp_catch_unload:
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (unloaded %s), "),
- bs->breakpoint_at->number,
- bs->breakpoint_at->triggered_dll_pathname);
+ b->number,
+ b->triggered_dll_pathname);
return PRINT_SRC_AND_LOC;
break;
case bp_catch_fork:
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (forked process %d), "),
- bs->breakpoint_at->number,
- bs->breakpoint_at->forked_inferior_pid);
+ b->number,
+ b->forked_inferior_pid);
return PRINT_SRC_AND_LOC;
break;
case bp_catch_vfork:
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (vforked process %d), "),
- bs->breakpoint_at->number,
- bs->breakpoint_at->forked_inferior_pid);
+ b->number,
+ b->forked_inferior_pid);
return PRINT_SRC_AND_LOC;
break;
case bp_catch_exec:
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (exec'd %s), "),
- bs->breakpoint_at->number,
- bs->breakpoint_at->exec_pathname);
+ b->number,
+ b->exec_pathname);
return PRINT_SRC_AND_LOC;
break;
@@ -2243,9 +2249,9 @@
if (current_exception_event &&
(CURRENT_EXCEPTION_KIND == EX_EVENT_CATCH))
{
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (exception caught), "),
- bs->breakpoint_at->number);
+ b->number);
if (CURRENT_EXCEPTION_THROW_PC && CURRENT_EXCEPTION_THROW_LINE)
printf_filtered (_("throw location %s:%d, "),
CURRENT_EXCEPTION_THROW_FILE,
@@ -2274,9 +2280,9 @@
if (current_exception_event &&
(CURRENT_EXCEPTION_KIND == EX_EVENT_THROW))
{
- annotate_catchpoint (bs->breakpoint_at->number);
+ annotate_catchpoint (b->number);
printf_filtered (_("\nCatchpoint %d (exception thrown), "),
- bs->breakpoint_at->number);
+ b->number);
if (CURRENT_EXCEPTION_THROW_PC && CURRENT_EXCEPTION_THROW_LINE)
printf_filtered (_("throw location %s:%d, "),
CURRENT_EXCEPTION_THROW_FILE,
@@ -2305,18 +2311,18 @@
case bp_hardware_watchpoint:
if (bs->old_val != NULL)
{
- annotate_watchpoint (bs->breakpoint_at->number);
+ annotate_watchpoint (b->number);
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string
(uiout, "reason",
async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER));
- mention (bs->breakpoint_at);
+ mention (b);
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nOld value = ");
value_print (bs->old_val, stb->stream, 0, Val_pretty_default);
ui_out_field_stream (uiout, "old", stb);
ui_out_text (uiout, "\nNew value = ");
- value_print (bs->breakpoint_at->val, stb->stream, 0, Val_pretty_default);
+ value_print (b->val, stb->stream, 0, Val_pretty_default);
ui_out_field_stream (uiout, "new", stb);
do_cleanups (ui_out_chain);
ui_out_text (uiout, "\n");
@@ -2332,10 +2338,10 @@
ui_out_field_string
(uiout, "reason",
async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER));
- mention (bs->breakpoint_at);
+ mention (b);
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nValue = ");
- value_print (bs->breakpoint_at->val, stb->stream, 0, Val_pretty_default);
+ value_print (b->val, stb->stream, 0, Val_pretty_default);
ui_out_field_stream (uiout, "value", stb);
do_cleanups (ui_out_chain);
ui_out_text (uiout, "\n");
@@ -2345,12 +2351,12 @@
case bp_access_watchpoint:
if (bs->old_val != NULL)
{
- annotate_watchpoint (bs->breakpoint_at->number);
+ annotate_watchpoint (b->number);
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string
(uiout, "reason",
async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER));
- mention (bs->breakpoint_at);
+ mention (b);
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nOld value = ");
value_print (bs->old_val, stb->stream, 0, Val_pretty_default);
@@ -2361,7 +2367,7 @@
}
else
{
- mention (bs->breakpoint_at);
+ mention (b);
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string
(uiout, "reason",
@@ -2369,7 +2375,7 @@
ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "value");
ui_out_text (uiout, "\nValue = ");
}
- value_print (bs->breakpoint_at->val, stb->stream, 0,Val_pretty_default);
+ value_print (b->val, stb->stream, 0,Val_pretty_default);
ui_out_field_stream (uiout, "new", stb);
do_cleanups (ui_out_chain);
ui_out_text (uiout, "\n");
@@ -2429,14 +2435,19 @@
break;
case print_it_normal:
- /* Normal case. Call the breakpoint's print_it method, or
- print_it_typical. */
- if (bs->breakpoint_at != NULL && bs->breakpoint_at->ops != NULL
- && bs->breakpoint_at->ops->print_it != NULL)
- return bs->breakpoint_at->ops->print_it (bs->breakpoint_at);
- else
- return print_it_typical (bs);
- break;
+ {
+ struct bp_location *bl = bs->breakpoint_at;
+ struct breakpoint *b = bl ? bl->owner : NULL;
+
+ /* Normal case. Call the breakpoint's print_it method, or
+ print_it_typical. */
+ /* FIXME: how breakpoint can ever be NULL here? */
+ if (b != NULL && b->ops != NULL && b->ops->print_it != NULL)
+ return b->ops->print_it (b);
+ else
+ return print_it_typical (bs);
+ }
+ break;
default:
internal_error (__FILE__, __LINE__,
@@ -2505,13 +2516,13 @@
/* Allocate a new bpstat and chain it to the current one. */
static bpstat
-bpstat_alloc (struct breakpoint *b, bpstat cbs /* Current "bs" value */ )
+bpstat_alloc (struct bp_location *bl, bpstat cbs /* Current "bs" value */ )
{
bpstat bs;
bs = (bpstat) xmalloc (sizeof (*bs));
cbs->next = bs;
- bs->breakpoint_at = b;
+ bs->breakpoint_at = bl;
/* If the condition is false, etc., don't do the commands. */
bs->commands = NULL;
bs->old_val = NULL;
@@ -2541,7 +2552,7 @@
struct frame_info *fr;
int within_current_scope;
- b = bs->breakpoint_at;
+ b = bs->breakpoint_at->owner;
if (b->exp_valid_block == NULL)
within_current_scope = 1;
@@ -2588,7 +2599,7 @@
we might be in the middle of evaluating a function call. */
struct value *mark = value_mark ();
- struct value *new_val = evaluate_expression (bs->breakpoint_at->exp);
+ struct value *new_val = evaluate_expression (b->exp);
if (!value_equal (b->val, new_val))
{
release_value (new_val);
@@ -2624,7 +2635,7 @@
ui_out_field_string
(uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE));
ui_out_text (uiout, "\nWatchpoint ");
- ui_out_field_int (uiout, "wpnum", bs->breakpoint_at->number);
+ ui_out_field_int (uiout, "wpnum", b->number);
ui_out_text (uiout, " deleted because the program has left the block in\n\
which its expression is valid.\n");
@@ -2760,7 +2771,7 @@
/* Come here if it's a watchpoint, or if the break address matches */
- bs = bpstat_alloc (b, bs); /* Alloc a bpstat to explain stop */
+ bs = bpstat_alloc (b->loc, bs); /* Alloc a bpstat to explain stop */
/* Watchpoints may change this, if not found to have triggered. */
bs->stop = 1;
@@ -2971,9 +2982,9 @@
/* The value of a hardware watchpoint hasn't changed, but the
intermediate memory locations we are watching may have. */
if (bs && !bs->stop &&
- (bs->breakpoint_at->type == bp_hardware_watchpoint ||
- bs->breakpoint_at->type == bp_read_watchpoint ||
- bs->breakpoint_at->type == bp_access_watchpoint))
+ (bs->breakpoint_at->owner->type == bp_hardware_watchpoint ||
+ bs->breakpoint_at->owner->type == bp_read_watchpoint ||
+ bs->breakpoint_at->owner->type == bp_access_watchpoint))
{
remove_breakpoints ();
insert_breakpoints ();
@@ -3134,7 +3145,7 @@
/* I suspect this can happen if it was a momentary breakpoint
which has since been deleted. */
continue;
- switch (bs->breakpoint_at->type)
+ switch (bs->breakpoint_at->owner->type)
{
case bp_none:
continue;
@@ -3289,7 +3300,7 @@
for (; ep_list != NULL; ep_list = ep_list->next)
{
/* Is this eventpoint a catchpoint? If not, ignore it. */
- ep = ep_list->breakpoint_at;
+ ep = ep_list->breakpoint_at->owner;
if (ep == NULL)
break;
if ((ep->type != bp_catch_load) &&
@@ -3300,7 +3311,7 @@
continue;
/* Yes; add it to the list. */
- bs = bpstat_alloc (ep, bs);
+ bs = bpstat_alloc (ep_list->breakpoint_at, bs);
*bs = *ep_list;
bs->next = NULL;
bs = root_bs->next;
@@ -6849,9 +6860,9 @@
struct breakpoint *b, *temp;
for (; bs; bs = bs->next)
- if (bs->breakpoint_at && bs->breakpoint_at->disposition == disp_del
+ if (bs->breakpoint_at && bs->breakpoint_at->owner->disposition == disp_del
&& bs->stop)
- delete_breakpoint (bs->breakpoint_at);
+ delete_breakpoint (bs->breakpoint_at->owner);
ALL_BREAKPOINTS_SAFE (b, temp)
{
@@ -7041,7 +7052,7 @@
in event-top.c won't do anything, and temporary breakpoints
with commands won't work. */
for (bs = stop_bpstat; bs; bs = bs->next)
- if (bs->breakpoint_at == bpt)
+ if (bs->breakpoint_at && bs->breakpoint_at->owner == bpt)
{
bs->breakpoint_at = NULL;
bs->old_val = NULL;
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.h,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -r1.47 -r1.48
--- src/gdb/breakpoint.h 2007/08/23 18:08:26 1.47
+++ src/gdb/breakpoint.h 2007/09/22 17:49:41 1.48
@@ -603,7 +603,7 @@
place, and a bpstat reflects the fact that both have been hit. */
bpstat next;
/* Breakpoint that we are at. */
- struct breakpoint *breakpoint_at;
+ struct bp_location *breakpoint_at;
/* Commands left to be done. */
struct command_line *commands;
/* Old value associated with a watchpoint. */
2007-09-22 Vladimir Prus <vladimir@codesourcery.com>
* breakpoint.h (struct breakpoint): Move the cond
field to...
(struct bp_location): Here.
* breakpoint.c (condition_command, bpstat_stop_status)
(print_one_breakpoint, allocate_bp_location)
(solib_load_unload_1, create_fork_vfork_event_catchpoint)
(create_exec_event_catchpoint, create_breakpoints)
(break_command_1, watch_command_1, handle_gnu_v3_exceptions)
(create_ada_exception_breakpoint, set_breakpoint_sal)
(delete_breakpoint, breakpoint_re_set_one): Adjust.
* tui/tui-winsource.c (tui_update_breakpoint_info): Adjust.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.264
retrieving revision 1.265
diff -u -r1.264 -r1.265
--- src/gdb/breakpoint.c 2007/09/22 17:49:40 1.264
+++ src/gdb/breakpoint.c 2007/09/22 19:06:59 1.265
@@ -569,17 +569,17 @@
ALL_BREAKPOINTS (b)
if (b->number == bnum)
{
- if (b->cond)
+ struct bp_location *loc = b->loc;
+ if (loc->cond)
{
- xfree (b->cond);
- b->cond = 0;
+ xfree (loc->cond);
+ loc->cond = 0;
}
if (b->cond_string != NULL)
xfree (b->cond_string);
if (*p == 0)
{
- b->cond = 0;
b->cond_string = NULL;
if (from_tty)
printf_filtered (_("Breakpoint %d now unconditional.\n"), bnum);
@@ -592,7 +592,8 @@
b->cond_string = savestring (arg, strlen (arg));
if (!b->pending)
{
- b->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
+ b->loc->cond = parse_exp_1 (&arg,
+ block_for_pc (b->loc->address), 0);
if (*arg)
error (_("Junk at end of expression"));
}
@@ -2923,19 +2924,19 @@
{
int value_is_zero = 0;
- if (b->cond)
+ if (b->loc->cond)
{
/* Need to select the frame, with all that implies
so that the conditions will have the right context. */
select_frame (get_current_frame ());
value_is_zero
- = catch_errors (breakpoint_cond_eval, (b->cond),
+ = catch_errors (breakpoint_cond_eval, (b->loc->cond),
"Error in testing breakpoint condition:\n",
RETURN_MASK_ALL);
/* FIXME-someday, should give breakpoint # */
free_all_values ();
}
- if (b->cond && value_is_zero)
+ if (b->loc->cond && value_is_zero)
{
bs->stop = 0;
/* Don't consider this a hit. */
@@ -3606,14 +3607,14 @@
ui_out_text (uiout, "\n");
}
- if (b->cond && !ada_exception_catchpoint_p (b))
+ if (b->loc->cond && !ada_exception_catchpoint_p (b))
{
/* We do not print the condition for Ada exception catchpoints
because the condition is an internal implementation detail
that we do not want to expose to the user. */
annotate_field (7);
ui_out_text (uiout, "\tstop only if ");
- print_expression (b->cond, stb->stream);
+ print_expression (b->loc->cond, stb->stream);
ui_out_field_stream (uiout, "cond", stb);
ui_out_text (uiout, "\n");
}
@@ -4085,6 +4086,7 @@
memset (loc, 0, sizeof (*loc));
loc->owner = bpt;
+ loc->cond = NULL;
switch (bp_type)
{
@@ -4604,7 +4606,6 @@
b = set_raw_breakpoint (sals.sals[0], bp_kind);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = NULL;
b->cond_string = (cond_string == NULL) ?
NULL : savestring (cond_string, strlen (cond_string));
b->thread = thread;
@@ -4661,7 +4662,6 @@
b = set_raw_breakpoint (sal, bp_kind);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = NULL;
b->cond_string = (cond_string == NULL) ?
NULL : savestring (cond_string, strlen (cond_string));
b->thread = thread;
@@ -4700,7 +4700,6 @@
b = set_raw_breakpoint (sal, bp_catch_exec);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = NULL;
b->cond_string = (cond_string == NULL) ?
NULL : savestring (cond_string, strlen (cond_string));
b->thread = thread;
@@ -5033,7 +5032,7 @@
b = set_raw_breakpoint (sal, type);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = cond[i];
+ b->loc->cond = cond[i];
b->thread = thread;
if (addr_string[i])
b->addr_string = addr_string[i];
@@ -5056,7 +5055,7 @@
{
arg = pending_bp->cond_string;
b->cond_string = savestring (arg, strlen (arg));
- b->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
+ b->loc->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
if (*arg)
error (_("Junk at end of pending breakpoint condition expression"));
}
@@ -5399,7 +5398,7 @@
: bp_breakpoint);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = *cond;
+ b->loc->cond = *cond;
b->thread = thread;
b->addr_string = *addr_string;
b->cond_string = *cond_string;
@@ -5792,7 +5791,7 @@
b->exp_valid_block = exp_valid_block;
b->exp_string = savestring (exp_start, exp_end - exp_start);
b->val = val;
- b->cond = cond;
+ b->loc->cond = cond;
if (cond_start)
b->cond_string = savestring (cond_start, cond_end - cond_start);
else
@@ -6352,7 +6351,6 @@
b = set_raw_breakpoint (*sal, bptype);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = NULL;
b->cond_string = (cond_string == NULL) ?
NULL : savestring (cond_string, strlen (cond_string));
b->thread = thread;
@@ -6432,7 +6430,6 @@
b = set_raw_breakpoint (sals.sals[0], bp_breakpoint);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = NULL;
b->cond_string = (cond_string == NULL) ?
NULL : savestring (cond_string, strlen (cond_string));
b->thread = -1;
@@ -6519,7 +6516,7 @@
b->disposition = tempflag ? disp_del : disp_donttouch;
b->number = breakpoint_count;
b->ignore_count = 0;
- b->cond = cond;
+ b->loc->cond = cond;
b->addr_string = addr_string;
b->language = language_ada;
b->cond_string = cond_string;
@@ -6701,7 +6698,6 @@
b = set_raw_breakpoint (sal, bp_breakpoint);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->cond = 0;
b->thread = -1;
return b;
}
@@ -7021,8 +7017,6 @@
}
free_command_lines (&bpt->commands);
- if (bpt->cond)
- xfree (bpt->cond);
if (bpt->cond_string != NULL)
xfree (bpt->cond_string);
if (bpt->addr_string != NULL)
@@ -7062,6 +7056,8 @@
bp, we mark it as deleted before freeing its storage. */
bpt->type = bp_none;
+ if (bpt->loc->cond)
+ xfree (bpt->loc->cond);
xfree (bpt->loc);
xfree (bpt);
}
@@ -7215,14 +7211,14 @@
if (b->cond_string != NULL)
{
s = b->cond_string;
- if (b->cond)
+ if (b->loc->cond)
{
- xfree (b->cond);
+ xfree (b->loc->cond);
/* Avoid re-freeing b->exp if an error during the call
to parse_exp_1. */
- b->cond = NULL;
+ b->loc->cond = NULL;
}
- b->cond = parse_exp_1 (&s, block_for_pc (sals.sals[i].pc), 0);
+ b->loc->cond = parse_exp_1 (&s, block_for_pc (sals.sals[i].pc), 0);
}
/* We need to re-set the breakpoint if the address changes... */
@@ -7314,14 +7310,14 @@
if (b->cond_string != NULL)
{
s = b->cond_string;
- if (b->cond)
+ if (b->loc->cond)
{
- xfree (b->cond);
+ xfree (b->loc->cond);
/* Avoid re-freeing b->exp if an error during the call
to parse_exp_1. */
- b->cond = NULL;
+ b->loc->cond = NULL;
}
- b->cond = parse_exp_1 (&s, (struct block *) 0, 0);
+ b->loc->cond = parse_exp_1 (&s, (struct block *) 0, 0);
}
if (breakpoint_enabled (b))
mention (b);
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.h,v
retrieving revision 1.48
retrieving revision 1.49
diff -u -r1.48 -r1.49
--- src/gdb/breakpoint.h 2007/09/22 17:49:41 1.48
+++ src/gdb/breakpoint.h 2007/09/22 19:06:59 1.49
@@ -243,6 +243,13 @@
than reference counting. */
struct breakpoint *owner;
+ /* Conditional. Break only if this expression's value is nonzero.
+ Unlike string form of condition, which is associated with breakpoint,
+ this is associated with location, since if breakpoint has several
+ locations, the evaluation of expression can be different for
+ different locations. */
+ struct expression *cond;
+
/* Nonzero if this breakpoint is now inserted. */
char inserted;
@@ -341,8 +348,6 @@
/* Stack depth (address of frame). If nonzero, break only if fp
equals this. */
struct frame_id frame_id;
- /* Conditional. Break only if this expression's value is nonzero. */
- struct expression *cond;
/* String we used to set the breakpoint (malloc'd). */
char *addr_string;
===================================================================
RCS file: /cvs/src/src/gdb/tui/tui-winsource.c,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -r1.28 -r1.29
--- src/gdb/tui/tui-winsource.c 2007/08/23 18:08:50 1.28
+++ src/gdb/tui/tui-winsource.c 2007/09/22 19:06:59 1.29
@@ -449,7 +449,7 @@
mode |= TUI_BP_ENABLED;
if (bp->hit_count)
mode |= TUI_BP_HIT;
- if (bp->cond)
+ if (bp->loc->cond)
mode |= TUI_BP_CONDITIONAL;
if (bp->type == bp_hardware_breakpoint)
mode |= TUI_BP_HARDWARE;
2007-09-22 Vladimir Prus <vladimir@codesourcery.com>
* breakpoint.c (create_breakpoint): Split from
create_breakpoints, implementing most of its logic.
Take just a single sal, single address string and
single condition. Do not take parsed condition at
all.
(create_breakpoints): Just call create_breakpoint
for each sal.
(find_condition_and_thread): New.
(break_command_1): Use find_condition_and_thread.
Do not keep parsed conditions.
(do_captured_breakpoint): Don't convert
condition string to struct expression.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.265
retrieving revision 1.266
diff -u -r1.265 -r1.266
--- src/gdb/breakpoint.c 2007/09/22 19:06:59 1.265
+++ src/gdb/breakpoint.c 2007/09/22 19:10:05 1.266
@@ -4984,93 +4984,125 @@
}
-/* Add SALS.nelts breakpoints to the breakpoint table. For each
- SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i],
- COND[i] and COND_STRING[i] values.
+/* Create a breakpoint with SAL as location. Use ADDR_STRING
+ as textual description of the location, and COND_STRING
+ as condition expression.
+
+ The paramter PENDING_BP is same as for the
+ create_breakpoints function. */
+
+static void
+create_breakpoint (struct symtab_and_line sal, char *addr_string,
+ char *cond_string,
+ enum bptype type, enum bpdisp disposition,
+ int thread, int ignore_count, int from_tty,
+ struct breakpoint *pending_bp)
+{
+ struct breakpoint *b;
+
+ if (type == bp_hardware_breakpoint)
+ {
+ int i = hw_breakpoint_used_count ();
+ int target_resources_ok =
+ TARGET_CAN_USE_HARDWARE_WATCHPOINT (bp_hardware_breakpoint,
+ i + 1, 0);
+ if (target_resources_ok == 0)
+ error (_("No hardware breakpoint support in the target."));
+ else if (target_resources_ok < 0)
+ error (_("Hardware breakpoints used exceeds limit."));
+ }
+
+ if (from_tty)
+ describe_other_breakpoints (sal.pc, sal.section, thread);
+
+ b = set_raw_breakpoint (sal, type);
+ set_breakpoint_count (breakpoint_count + 1);
+ b->number = breakpoint_count;
+ b->thread = thread;
+
+ b->cond_string = cond_string;
+ b->ignore_count = ignore_count;
+ b->enable_state = bp_enabled;
+ b->disposition = disposition;
+ /* If resolving a pending breakpoint, a check must be made to see if
+ the user has specified a new condition or commands for the
+ breakpoint. A new condition will override any condition that was
+ initially specified with the initial breakpoint command. */
+ if (pending_bp)
+ {
+ if (pending_bp->cond_string)
+ b->cond_string = savestring (pending_bp->cond_string,
+ strlen (pending_bp->cond_string));
+
+ /* If there are commands associated with the breakpoint, they should
+ be copied too. */
+ if (pending_bp->commands)
+ b->commands = copy_command_lines (pending_bp->commands);
+
+ /* We have to copy over the ignore_count and thread as well. */
+ b->ignore_count = pending_bp->ignore_count;
+ b->thread = pending_bp->thread;
+ }
+
+ if (b->cond_string)
+ {
+ char *arg = b->cond_string;
+ b->loc->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
+ if (*arg)
+ {
+ if (pending_bp)
+ error (_("Junk at end of pending breakpoint condition expression"));
+ else
+ error (_("Garbage %s follows condition"), arg);
+ }
+ }
+
+ if (addr_string)
+ b->addr_string = addr_string;
+ else
+ /* addr_string has to be used or breakpoint_re_set will delete
+ me. */
+ b->addr_string = xstrprintf ("*0x%s", paddr (b->loc->address));
+
+ mention (b);
+}
+
+/* Add SALS.nelts breakpoints to the breakpoint table. For each
+ SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i]
+ value. COND_STRING, if not NULL, specified the condition to be
+ used for all breakpoints. Essentially the only case where
+ SALS.nelts is not 1 is when we set a breakpoint on an overloaded
+ function. In that case, it's still not possible to specify
+ separate conditions for different overloaded functions, so
+ we take just a single condition string.
+
The parameter PENDING_BP points to a pending breakpoint that is
the basis of the breakpoints currently being created. The pending
breakpoint may contain a separate condition string or commands
that were added after the initial pending breakpoint was created.
NOTE: If the function succeeds, the caller is expected to cleanup
- the arrays ADDR_STRING, COND_STRING, COND and SALS (but not the
+ the arrays ADDR_STRING, COND_STRING, and SALS (but not the
array contents). If the function fails (error() is called), the
caller is expected to cleanups both the ADDR_STRING, COND_STRING,
COND and SALS arrays and each of those arrays contents. */
static void
create_breakpoints (struct symtabs_and_lines sals, char **addr_string,
- struct expression **cond, char **cond_string,
+ char *cond_string,
enum bptype type, enum bpdisp disposition,
int thread, int ignore_count, int from_tty,
struct breakpoint *pending_bp)
{
- if (type == bp_hardware_breakpoint)
+ int i;
+ for (i = 0; i < sals.nelts; ++i)
{
- int i = hw_breakpoint_used_count ();
- int target_resources_ok =
- TARGET_CAN_USE_HARDWARE_WATCHPOINT (bp_hardware_breakpoint,
- i + sals.nelts, 0);
- if (target_resources_ok == 0)
- error (_("No hardware breakpoint support in the target."));
- else if (target_resources_ok < 0)
- error (_("Hardware breakpoints used exceeds limit."));
+ create_breakpoint (sals.sals[i], addr_string[i],
+ cond_string, type, disposition,
+ thread, ignore_count, from_tty,
+ pending_bp);
}
-
- /* Now set all the breakpoints. */
- {
- int i;
- for (i = 0; i < sals.nelts; i++)
- {
- struct breakpoint *b;
- struct symtab_and_line sal = sals.sals[i];
-
- if (from_tty)
- describe_other_breakpoints (sal.pc, sal.section, thread);
-
- b = set_raw_breakpoint (sal, type);
- set_breakpoint_count (breakpoint_count + 1);
- b->number = breakpoint_count;
- b->loc->cond = cond[i];
- b->thread = thread;
- if (addr_string[i])
- b->addr_string = addr_string[i];
- else
- /* addr_string has to be used or breakpoint_re_set will delete
- me. */
- b->addr_string = xstrprintf ("*0x%s", paddr (b->loc->address));
- b->cond_string = cond_string[i];
- b->ignore_count = ignore_count;
- b->enable_state = bp_enabled;
- b->disposition = disposition;
- /* If resolving a pending breakpoint, a check must be made to see if
- the user has specified a new condition or commands for the
- breakpoint. A new condition will override any condition that was
- initially specified with the initial breakpoint command. */
- if (pending_bp)
- {
- char *arg;
- if (pending_bp->cond_string)
- {
- arg = pending_bp->cond_string;
- b->cond_string = savestring (arg, strlen (arg));
- b->loc->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
- if (*arg)
- error (_("Junk at end of pending breakpoint condition expression"));
- }
- /* If there are commands associated with the breakpoint, they should
- be copied too. */
- if (pending_bp->commands)
- b->commands = copy_command_lines (pending_bp->commands);
-
- /* We have to copy over the ignore_count and thread as well. */
- b->ignore_count = pending_bp->ignore_count;
- b->thread = pending_bp->thread;
- }
- mention (b);
- }
- }
}
/* Parse ARG which is assumed to be a SAL specification possibly
@@ -5192,6 +5224,59 @@
args->not_found_ptr);
}
+/* Given TOK, a string specification of condition and thread, as
+ accepted by the 'break' command, extract the condition
+ string and thread number and set *COND_STRING and *THREAD.
+ PC identifies the context at which the condition should be parsed.
+ If no condition is found, *COND_STRING is set to NULL.
+ If no thread is found, *THREAD is set to -1. */
+static void
+find_condition_and_thread (char *tok, CORE_ADDR pc,
+ char **cond_string, int *thread)
+{
+ *cond_string = NULL;
+ *thread = -1;
+ while (tok && *tok)
+ {
+ char *end_tok;
+ int toklen;
+ char *cond_start = NULL;
+ char *cond_end = NULL;
+ while (*tok == ' ' || *tok == '\t')
+ tok++;
+
+ end_tok = tok;
+
+ while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
+ end_tok++;
+
+ toklen = end_tok - tok;
+
+ if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
+ {
+ tok = cond_start = end_tok + 1;
+ parse_exp_1 (&tok, block_for_pc (pc), 0);
+ cond_end = tok;
+ *cond_string = savestring (cond_start,
+ cond_end - cond_start);
+ }
+ else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
+ {
+ char *tmptok;
+
+ tok = end_tok + 1;
+ tmptok = tok;
+ *thread = strtol (tok, &tok, 0);
+ if (tok == tmptok)
+ error (_("Junk after thread keyword."));
+ if (!valid_thread_id (*thread))
+ error (_("Unknown thread %d."), *thread);
+ }
+ else
+ error (_("Junk at end of arguments."));
+ }
+}
+
/* Set a breakpoint according to ARG (function, linenum or *address)
flag: first bit : 0 non-temporary, 1 temporary.
second bit : 0 normal breakpoint, 1 hardware breakpoint.
@@ -5205,9 +5290,8 @@
struct gdb_exception e;
int tempflag, hardwareflag;
struct symtabs_and_lines sals;
- struct expression **cond = 0;
struct symtab_and_line pending_sal;
- char **cond_string = (char **) NULL;
+ char *cond_string = NULL;
char *copy_arg;
char *err_msg;
char *addr_start = arg;
@@ -5297,14 +5381,6 @@
make_cleanup (xfree, addr_string);
}
- /* Allocate space for all the cond expressions. */
- cond = xcalloc (sals.nelts, sizeof (struct expression *));
- make_cleanup (xfree, cond);
-
- /* Allocate space for all the cond strings. */
- cond_string = xcalloc (sals.nelts, sizeof (char **));
- make_cleanup (xfree, cond_string);
-
/* ----------------------------- SNIP -----------------------------
Anything added to the cleanup chain beyond this point is assumed
to be part of a breakpoint. If the breakpoint create succeeds
@@ -5328,56 +5404,16 @@
/* Verify that condition can be parsed, before setting any
breakpoints. Allocate a separate condition expression for each
breakpoint. */
- thread = -1; /* No specific thread yet */
if (!pending)
{
- for (i = 0; i < sals.nelts; i++)
- {
- char *tok = arg;
- while (tok && *tok)
- {
- char *end_tok;
- int toklen;
- char *cond_start = NULL;
- char *cond_end = NULL;
- while (*tok == ' ' || *tok == '\t')
- tok++;
-
- end_tok = tok;
-
- while (*end_tok != ' ' && *end_tok != '\t' && *end_tok != '\000')
- end_tok++;
-
- toklen = end_tok - tok;
-
- if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
- {
- tok = cond_start = end_tok + 1;
- cond[i] = parse_exp_1 (&tok, block_for_pc (sals.sals[i].pc),
- 0);
- make_cleanup (xfree, cond[i]);
- cond_end = tok;
- cond_string[i] = savestring (cond_start,
- cond_end - cond_start);
- make_cleanup (xfree, cond_string[i]);
- }
- else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0)
- {
- char *tmptok;
-
- tok = end_tok + 1;
- tmptok = tok;
- thread = strtol (tok, &tok, 0);
- if (tok == tmptok)
- error (_("Junk after thread keyword."));
- if (!valid_thread_id (thread))
- error (_("Unknown thread %d."), thread);
- }
- else
- error (_("Junk at end of arguments."));
- }
- }
- create_breakpoints (sals, addr_string, cond, cond_string,
+ /* Here we only parse 'arg' to separate condition
+ from thread number, so parsing in context of first
+ sal is OK. When setting the breakpoint we'll
+ re-parse it in context of each sal. */
+ find_condition_and_thread (arg, sals.sals[0].pc, &cond_string, &thread);
+ if (cond_string)
+ make_cleanup (xfree, cond_string);
+ create_breakpoints (sals, addr_string, cond_string,
hardwareflag ? bp_hardware_breakpoint
: bp_breakpoint,
tempflag ? disp_del : disp_donttouch,
@@ -5398,10 +5434,10 @@
: bp_breakpoint);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->loc->cond = *cond;
+ b->loc->cond = NULL;
b->thread = thread;
- b->addr_string = *addr_string;
- b->cond_string = *cond_string;
+ b->addr_string = addr_string[0];
+ b->cond_string = cond_string;
b->ignore_count = ignore_count;
b->pending = 1;
b->disposition = tempflag ? disp_del : disp_donttouch;
@@ -5445,7 +5481,7 @@
struct cleanup *breakpoint_chain = NULL;
int i;
char **addr_string;
- char **cond_string;
+ char *cond_string;
char *address_end;
@@ -5502,22 +5538,13 @@
/* Resolve all line numbers to PC's. */
breakpoint_sals_to_pc (&sals, args->address);
- /* Verify that conditions can be parsed, before setting any
- breakpoints. */
- for (i = 0; i < sals.nelts; i++)
+ if (args->condition != NULL)
{
- if (args->condition != NULL)
- {
- char *tok = args->condition;
- cond[i] = parse_exp_1 (&tok, block_for_pc (sals.sals[i].pc), 0);
- if (*tok != '\0')
- error (_("Garbage %s follows condition"), tok);
- make_cleanup (xfree, cond[i]);
- cond_string[i] = xstrdup (args->condition);
- }
+ cond_string = xstrdup (args->condition);
+ make_cleanup (xfree, cond_string);
}
- create_breakpoints (sals, addr_string, cond, cond_string,
+ create_breakpoints (sals, addr_string, args->condition,
args->hardwareflag ? bp_hardware_breakpoint : bp_breakpoint,
args->tempflag ? disp_del : disp_donttouch,
args->thread, args->ignore_count, 0/*from-tty*/,
2007-09-22 Vladimir Prus <vladimir@codesourcery.com>
* breakpoint.c (do_restore_lang_radix_cleanup): Remove.
(resolve_pending_breakpoint): Remove.
(re_enable_breakpoints_in_shlibs): Remove.
(unlink_locations_from_global_list): New.
(update_breakpoint_locations): New.
(breakpoint_re_set_one): Don't bail out on pending breakpoints.
Use parse_condition and update_breakpoint_location to
reset breakpoint. Ignore 'symbol not found' error from
decode_line_1.
(breakpoint_re_set): Don't emit newline before the
reason why breakpoint is not reset.
(do_enable_breakpoint): Don't specially process pending
breakpoints.
(free_bp_location): New.
(break_command_1): For pending breakpoints, initialize
all fields of a sal with zeroes.
* breakpoint.h (re_enable_breakpoints_in_shlibs): Remove.
* infcmd.c (post_create_inferior): Don't call
re_enable_breakpoints_in_shlibs.
* infrun.c (handle_inferior_event): Likewise.
* solib-irix.c (irix_solib_create_inferior_hook): Likewise.
* solib-osf.c (osf_solib_create_inferior_hook): Likewise.
* win32-nat.c (get_win32_debug_event): Likewise.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.266
retrieving revision 1.267
diff -u -r1.266 -r1.267
--- src/gdb/breakpoint.c 2007/09/22 19:10:05 1.266
+++ src/gdb/breakpoint.c 2007/09/22 19:33:31 1.267
@@ -203,6 +203,8 @@
static int single_step_breakpoint_inserted_here_p (CORE_ADDR pc);
+static void free_bp_location (struct bp_location *loc);
+
/* Prototypes for exported functions. */
/* If FALSE, gdb will not use hardware support for watchpoints, even
@@ -4140,6 +4142,13 @@
return loc;
}
+static void free_bp_location (struct bp_location *loc)
+{
+ if (loc->cond)
+ xfree (loc->cond);
+ xfree (loc);
+}
+
/* set_raw_breakpoint() is a low level routine for allocating and
partially initializing a breakpoint of type BPTYPE. The newly
created breakpoint's address, section, source file name, and line
@@ -4396,51 +4405,6 @@
int radix;
};
-/* Cleanup helper routine to restore the current language and
- input radix. */
-static void
-do_restore_lang_radix_cleanup (void *old)
-{
- struct lang_and_radix *p = old;
- set_language (p->lang);
- input_radix = p->radix;
-}
-
-/* Try and resolve a pending breakpoint. */
-static int
-resolve_pending_breakpoint (struct breakpoint *b)
-{
- /* Try and reparse the breakpoint in case the shared library
- is now loaded. */
- struct symtabs_and_lines sals;
- struct symtab_and_line pending_sal;
- char **cond_string = (char **) NULL;
- char *copy_arg = b->addr_string;
- char **addr_string;
- char *errmsg;
- int rc;
- int not_found = 0;
- struct ui_file *old_gdb_stderr;
- struct lang_and_radix old_lr;
- struct cleanup *old_chain;
-
- /* Set language, input-radix, then reissue breakpoint command.
- Ensure the language and input-radix are restored afterwards. */
- old_lr.lang = current_language->la_language;
- old_lr.radix = input_radix;
- old_chain = make_cleanup (do_restore_lang_radix_cleanup, &old_lr);
-
- set_language (b->language);
- input_radix = b->input_radix;
- rc = break_command_1 (b->addr_string, b->flag, b->from_tty, b);
-
- if (rc == GDB_RC_OK)
- /* Pending breakpoint has been resolved. */
- printf_filtered (_("Pending breakpoint \"%s\" resolved\n"), b->addr_string);
-
- do_cleanups (old_chain);
- return rc;
-}
void
remove_solib_event_breakpoints (void)
@@ -4523,37 +4487,6 @@
}
}
-/* Try to reenable any breakpoints in shared libraries. */
-void
-re_enable_breakpoints_in_shlibs (void)
-{
- struct breakpoint *b, *tmp;
-
- ALL_BREAKPOINTS_SAFE (b, tmp)
- {
- if (b->enable_state == bp_shlib_disabled)
- {
- gdb_byte buf[1];
- char *lib;
-
- /* Do not reenable the breakpoint if the shared library is
- still not mapped in. */
-#ifdef PC_SOLIB
- lib = PC_SOLIB (b->loc->address);
-#else
- lib = solib_address (b->loc->address);
-#endif
- if (lib != NULL && target_read_memory (b->loc->address, buf, 1) == 0)
- b->enable_state = bp_enabled;
- }
- else if (b->pending && (b->enable_state == bp_enabled))
- {
- if (resolve_pending_breakpoint (b) == GDB_RC_OK)
- delete_breakpoint (b);
- }
- }
-}
-
static void
solib_load_unload_1 (char *hookname, int tempflag, char *dll_pathname,
char *cond_string, enum bptype bp_kind)
@@ -5422,12 +5355,9 @@
}
else
{
- struct symtab_and_line sal;
+ struct symtab_and_line sal = {0};
struct breakpoint *b;
- sal.symtab = NULL;
- sal.pc = 0;
-
make_cleanup (xfree, copy_arg);
b = set_raw_breakpoint (sal, hardwareflag ? bp_hardware_breakpoint
@@ -7153,6 +7083,97 @@
map_breakpoint_numbers (arg, delete_breakpoint);
}
+static void
+unlink_locations_from_global_list (struct breakpoint *bpt)
+ /* Remove locations of this breakpoint from the list of
+ all breakpoint locations. */
+{
+ struct bp_location **tmp = &bp_location_chain;
+ struct bp_location *here = bpt->loc;
+
+ if (here == NULL)
+ return;
+
+ for (; *tmp && *tmp != here; tmp = &((*tmp)->next));
+ gdb_assert (*tmp);
+
+ *tmp = here->next;
+}
+
+
+static void
+update_breakpoint_location (struct breakpoint *b,
+ struct symtabs_and_lines sals)
+{
+ int i;
+ char *s;
+ /* FIXME: memleak. */
+ struct bp_location *existing = b->loc;
+ struct bp_location *loc;
+ struct symtab_and_line sal;
+
+ if (b->enable_state == bp_shlib_disabled && sals.nelts == 0)
+ return;
+
+ unlink_locations_from_global_list (b);
+ b->loc = NULL;
+
+ gdb_assert (sals.nelts == 0 || sals.nelts == 1);
+ if (sals.nelts == 0)
+ return;
+ sal = sals.sals[0];
+
+ loc = allocate_bp_location (b, b->type);
+ loc->requested_address = sal.pc;
+ loc->address = adjust_breakpoint_address (loc->requested_address,
+ b->type);
+ loc->section = sal.section;
+ b->loc = loc;
+
+ /* Reparse conditions, they might contain references to the
+ old symtab. */
+ if (b->cond_string != NULL)
+ {
+ struct gdb_exception e;
+
+ s = b->cond_string;
+ TRY_CATCH (e, RETURN_MASK_ERROR)
+ {
+ loc->cond = parse_exp_1 (&s, block_for_pc (sal.pc),
+ 0);
+ }
+ if (e.reason < 0)
+ {
+ warning (_("failed to reevaluate condition for breakpoint %d: %s"),
+ b->number, e.message);
+ b->enable_state = bp_disabled;
+ }
+ }
+
+ if (b->source_file != NULL)
+ xfree (b->source_file);
+ if (sal.symtab == NULL)
+ b->source_file = NULL;
+ else
+ b->source_file =
+ savestring (sal.symtab->filename,
+ strlen (sal.symtab->filename));
+
+ if (b->line_number == 0)
+ b->line_number = sal.line;
+
+ if (b->enable_state == bp_shlib_disabled)
+ b->enable_state = bp_enabled;
+
+ b->pending = 0;
+
+ check_duplicates (b);
+
+ if (existing)
+ free_bp_location (existing);
+}
+
+
/* Reset a breakpoint given it's struct breakpoint * BINT.
The value we return ends up being the return value from catch_errors.
Unused in this case. */
@@ -7164,11 +7185,13 @@
struct breakpoint *b = (struct breakpoint *) bint;
struct value *mark;
int i;
- int not_found;
- int *not_found_ptr = NULL;
- struct symtabs_and_lines sals;
+ int not_found = 0;
+ int *not_found_ptr = &not_found;
+ struct symtabs_and_lines sals = {};
char *s;
enum enable_state save_enable;
+ struct gdb_exception e;
+
switch (b->type)
{
@@ -7186,115 +7209,59 @@
delete_breakpoint (b);
return 0;
}
- /* HACK: cagney/2001-11-11: kettenis/2001-11-11: MarkK wrote:
-
- ``And a hack it is, although Apple's Darwin version of GDB
- contains an almost identical hack to implement a "future
- break" command. It seems to work in many real world cases,
- but it is easy to come up with a test case where the patch
- doesn't help at all.''
-
- ``It seems that the way GDB implements breakpoints - in -
- shared - libraries was designed for a.out shared library
- systems (SunOS 4) where shared libraries were loaded at a
- fixed address in memory. Since ELF shared libraries can (and
- will) be loaded at any address in memory, things break.
- Fixing this is not trivial. Therefore, I'm not sure whether
- we should add this hack to the branch only. I cannot
- guarantee that things will be fixed on the trunk in the near
- future.''
-
- In case we have a problem, disable this breakpoint. We'll
- restore its status if we succeed. Don't disable a
- shlib_disabled breakpoint though. There's a fair chance we
- can't re-set it if the shared library it's in hasn't been
- loaded yet. */
-
- if (b->pending)
- break;
-
- save_enable = b->enable_state;
- if (b->enable_state != bp_shlib_disabled)
- b->enable_state = bp_disabled;
- else
- /* If resetting a shlib-disabled breakpoint, we don't want to
- see an error message if it is not found since we will expect
- this to occur until the shared library is finally reloaded.
- We accomplish this by giving decode_line_1 a pointer to use
- for silent notification that the symbol is not found. */
- not_found_ptr = &not_found;
set_language (b->language);
input_radix = b->input_radix;
s = b->addr_string;
- sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0, (char ***) NULL,
- not_found_ptr);
- for (i = 0; i < sals.nelts; i++)
- {
- resolve_sal_pc (&sals.sals[i]);
-
- /* Reparse conditions, they might contain references to the
- old symtab. */
- if (b->cond_string != NULL)
- {
- s = b->cond_string;
- if (b->loc->cond)
- {
- xfree (b->loc->cond);
- /* Avoid re-freeing b->exp if an error during the call
- to parse_exp_1. */
- b->loc->cond = NULL;
- }
- b->loc->cond = parse_exp_1 (&s, block_for_pc (sals.sals[i].pc), 0);
- }
+ TRY_CATCH (e, RETURN_MASK_ERROR)
+ {
+ sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0, (char ***) NULL,
+ not_found_ptr);
+ }
+ if (e.reason < 0)
+ {
+ int not_found_and_ok = 0;
+ /* For pending breakpoints, it's expected that parsing
+ will fail until the right shared library is loaded.
+ User has already told to create pending breakpoints and
+ don't need extra messages. If breakpoint is in bp_shlib_disabled
+ state, then user already saw the message about that breakpoint
+ being disabled, and don't want to see more errors. */
+ if (not_found && (b->pending || b->enable_state == bp_shlib_disabled
+ || b->enable_state == bp_disabled))
+ not_found_and_ok = 1;
- /* We need to re-set the breakpoint if the address changes... */
- if (b->loc->address != sals.sals[i].pc
- /* ...or new and old breakpoints both have source files, and
- the source file name or the line number changes... */
- || (b->source_file != NULL
- && sals.sals[i].symtab != NULL
- && (strcmp (b->source_file, sals.sals[i].symtab->filename) != 0
- || b->line_number != sals.sals[i].line)
- )
- /* ...or we switch between having a source file and not having
- one. */
- || ((b->source_file == NULL) != (sals.sals[i].symtab == NULL))
- )
+ if (!not_found_and_ok)
{
- if (b->source_file != NULL)
- xfree (b->source_file);
- if (sals.sals[i].symtab == NULL)
- b->source_file = NULL;
- else
- b->source_file =
- savestring (sals.sals[i].symtab->filename,
- strlen (sals.sals[i].symtab->filename));
- b->line_number = sals.sals[i].line;
- b->loc->requested_address = sals.sals[i].pc;
- b->loc->address
- = adjust_breakpoint_address (b->loc->requested_address,
- b->type);
-
- /* Used to check for duplicates here, but that can
- cause trouble, as it doesn't check for disabled
- breakpoints. */
-
- mention (b);
-
- /* Might be better to do this just once per breakpoint_re_set,
- rather than once for every breakpoint. */
- breakpoints_changed ();
+ /* We surely don't want to warn about the same breakpoint
+ 10 times. One solution, implemented here, is disable
+ the breakpoint on error. Another solution would be to
+ have separate 'warning emitted' flag. Since this
+ happens only when a binary has changed, I don't know
+ which approach is better. */
+ b->enable_state = bp_disabled;
+ throw_exception (e);
}
- b->loc->section = sals.sals[i].section;
- b->enable_state = save_enable; /* Restore it, this worked. */
+ }
+ if (not_found)
+ break;
+
+ gdb_assert (sals.nelts == 1);
+ resolve_sal_pc (&sals.sals[0]);
+ if (b->pending && s && s[0])
+ {
+ char *cond_string = 0;
+ int thread = -1;
+ find_condition_and_thread (s, sals.sals[0].pc,
+ &cond_string, &thread);
+ if (cond_string)
+ b->cond_string = cond_string;
+ b->thread = thread;
+ }
- /* Now that this is re-enabled, check_duplicates
- can be used. */
- check_duplicates (b);
+ update_breakpoint_location (b, sals);
- }
xfree (sals.sals);
break;
@@ -7408,7 +7375,7 @@
ALL_BREAKPOINTS_SAFE (b, temp)
{
/* Format possible error msg */
- char *message = xstrprintf ("Error in re-setting breakpoint %d:\n",
+ char *message = xstrprintf ("Error in re-setting breakpoint %d: ",
b->number);
struct cleanup *cleanups = make_cleanup (xfree, message);
catch_errors (breakpoint_re_set_one, b, message, RETURN_MASK_ALL);
@@ -7635,88 +7602,68 @@
error (_("Hardware breakpoints used exceeds limit."));
}
- if (bpt->pending)
+ if (bpt->enable_state != bp_permanent)
+ bpt->enable_state = bp_enabled;
+ bpt->disposition = disposition;
+ check_duplicates (bpt);
+ breakpoints_changed ();
+
+ if (bpt->type == bp_watchpoint ||
+ bpt->type == bp_hardware_watchpoint ||
+ bpt->type == bp_read_watchpoint ||
+ bpt->type == bp_access_watchpoint)
{
- if (bpt->enable_state != bp_enabled)
+ struct frame_id saved_frame_id;
+
+ saved_frame_id = get_frame_id (get_selected_frame (NULL));
+ if (bpt->exp_valid_block != NULL)
{
- /* When enabling a pending breakpoint, we need to check if the breakpoint
- is resolvable since shared libraries could have been loaded
- after the breakpoint was disabled. */
- breakpoints_changed ();
- if (resolve_pending_breakpoint (bpt) == GDB_RC_OK)
+ struct frame_info *fr =
+ fr = frame_find_by_id (bpt->watchpoint_frame);
+ if (fr == NULL)
{
- delete_breakpoint (bpt);
+ printf_filtered (_("\
+Cannot enable watchpoint %d because the block in which its expression\n\
+is valid is not currently in scope.\n"), bpt->number);
+ bpt->enable_state = bp_disabled;
return;
}
- bpt->enable_state = bp_enabled;
- bpt->disposition = disposition;
+ select_frame (fr);
}
- }
- else /* Not a pending breakpoint. */
- {
- if (bpt->enable_state != bp_permanent)
- bpt->enable_state = bp_enabled;
- bpt->disposition = disposition;
- check_duplicates (bpt);
- breakpoints_changed ();
- if (bpt->type == bp_watchpoint ||
- bpt->type == bp_hardware_watchpoint ||
- bpt->type == bp_read_watchpoint ||
+ value_free (bpt->val);
+ mark = value_mark ();
+ bpt->val = evaluate_expression (bpt->exp);
+ release_value (bpt->val);
+ if (value_lazy (bpt->val))
+ value_fetch_lazy (bpt->val);
+
+ if (bpt->type == bp_hardware_watchpoint ||
+ bpt->type == bp_read_watchpoint ||
bpt->type == bp_access_watchpoint)
{
- struct frame_id saved_frame_id;
-
- saved_frame_id = get_frame_id (get_selected_frame (NULL));
- if (bpt->exp_valid_block != NULL)
- {
- struct frame_info *fr =
- fr = frame_find_by_id (bpt->watchpoint_frame);
- if (fr == NULL)
- {
- printf_filtered (_("\
-Cannot enable watchpoint %d because the block in which its expression\n\
-is valid is not currently in scope.\n"), bpt->number);
- bpt->enable_state = bp_disabled;
- return;
- }
- select_frame (fr);
- }
-
- value_free (bpt->val);
- mark = value_mark ();
- bpt->val = evaluate_expression (bpt->exp);
- release_value (bpt->val);
- if (value_lazy (bpt->val))
- value_fetch_lazy (bpt->val);
+ int i = hw_watchpoint_used_count (bpt->type, &other_type_used);
+ int mem_cnt = can_use_hardware_watchpoint (bpt->val);
- if (bpt->type == bp_hardware_watchpoint ||
- bpt->type == bp_read_watchpoint ||
- bpt->type == bp_access_watchpoint)
+ /* Hack around 'unused var' error for some targets here */
+ (void) mem_cnt, (void) i;
+ target_resources_ok = TARGET_CAN_USE_HARDWARE_WATCHPOINT (
+ bpt->type, i + mem_cnt, other_type_used);
+ /* we can consider of type is bp_hardware_watchpoint, convert to
+ bp_watchpoint in the following condition */
+ if (target_resources_ok < 0)
{
- int i = hw_watchpoint_used_count (bpt->type, &other_type_used);
- int mem_cnt = can_use_hardware_watchpoint (bpt->val);
-
- /* Hack around 'unused var' error for some targets here */
- (void) mem_cnt, (void) i;
- target_resources_ok = TARGET_CAN_USE_HARDWARE_WATCHPOINT (
- bpt->type, i + mem_cnt, other_type_used);
- /* we can consider of type is bp_hardware_watchpoint, convert to
- bp_watchpoint in the following condition */
- if (target_resources_ok < 0)
- {
- printf_filtered (_("\
+ printf_filtered (_("\
Cannot enable watchpoint %d because target watch resources\n\
have been allocated for other watchpoints.\n"), bpt->number);
- bpt->enable_state = bp_disabled;
- value_free_to_mark (mark);
- return;
- }
+ bpt->enable_state = bp_disabled;
+ value_free_to_mark (mark);
+ return;
}
-
- select_frame (frame_find_by_id (saved_frame_id));
- value_free_to_mark (mark);
}
+
+ select_frame (frame_find_by_id (saved_frame_id));
+ value_free_to_mark (mark);
}
if (deprecated_modify_breakpoint_hook)
@@ -7724,6 +7671,7 @@
breakpoint_modify_event (bpt->number);
}
+
void
enable_breakpoint (struct breakpoint *bpt)
{
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.h,v
retrieving revision 1.49
retrieving revision 1.50
diff -u -r1.49 -r1.50
--- src/gdb/breakpoint.h 2007/09/22 19:06:59 1.49
+++ src/gdb/breakpoint.h 2007/09/22 19:33:31 1.50
@@ -799,8 +799,6 @@
extern void disable_breakpoints_in_shlibs (void);
-extern void re_enable_breakpoints_in_shlibs (void);
-
extern void create_solib_load_event_breakpoint (char *, int, char *, char *);
extern void create_solib_unload_event_breakpoint (char *, int,
===================================================================
RCS file: /cvs/src/src/gdb/infcmd.c,v
retrieving revision 1.158
retrieving revision 1.159
diff -u -r1.158 -r1.159
--- src/gdb/infcmd.c 2007/09/04 01:38:07 1.158
+++ src/gdb/infcmd.c 2007/09/22 19:33:31 1.159
@@ -433,10 +433,6 @@
#else
solib_create_inferior_hook ();
#endif
-
- /* Enable any breakpoints which were disabled when the
- underlying shared library was deleted. */
- re_enable_breakpoints_in_shlibs ();
}
observer_notify_inferior_created (target, from_tty);
===================================================================
RCS file: /cvs/src/src/gdb/infrun.c,v
retrieving revision 1.247
retrieving revision 1.248
diff -u -r1.247 -r1.248
--- src/gdb/infrun.c 2007/09/17 19:44:20 1.247
+++ src/gdb/infrun.c 2007/09/22 19:33:31 1.248
@@ -1337,10 +1337,6 @@
#endif
target_terminal_inferior ();
- /* Try to reenable shared library breakpoints, additional
- code segments in shared libraries might be mapped in now. */
- re_enable_breakpoints_in_shlibs ();
-
/* If requested, stop when the dynamic linker notifies
gdb of events. This allows the user to get control
and place breakpoints in initializer routines for
@@ -2276,10 +2272,6 @@
#endif
target_terminal_inferior ();
- /* Try to reenable shared library breakpoints, additional
- code segments in shared libraries might be mapped in now. */
- re_enable_breakpoints_in_shlibs ();
-
/* If requested, stop when the dynamic linker notifies
gdb of events. This allows the user to get control
and place breakpoints in initializer routines for
===================================================================
RCS file: /cvs/src/src/gdb/solib-irix.c,v
retrieving revision 1.14
retrieving revision 1.15
diff -u -r1.14 -r1.15
--- src/gdb/solib-irix.c 2007/08/23 18:08:38 1.14
+++ src/gdb/solib-irix.c 2007/09/22 19:33:31 1.15
@@ -457,7 +457,6 @@
suppresses the warning. */
solib_add ((char *) 0, 0, (struct target_ops *) 0, auto_solib_add);
stop_soon = NO_STOP_QUIETLY;
- re_enable_breakpoints_in_shlibs ();
}
/* LOCAL FUNCTION
===================================================================
RCS file: /cvs/src/src/gdb/solib-osf.c,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- src/gdb/solib-osf.c 2007/08/23 18:08:38 1.11
+++ src/gdb/solib-osf.c 2007/09/22 19:33:31 1.12
@@ -336,9 +336,6 @@
suppresses the warning. */
solib_add ((char *) 0, 0, (struct target_ops *) 0, auto_solib_add);
stop_soon = NO_STOP_QUIETLY;
-
- /* Enable breakpoints disabled (unnecessarily) by clear_solib(). */
- re_enable_breakpoints_in_shlibs ();
}
/* target_so_ops callback. Do additional symbol handling, lookup, etc. after
2007-09-22 Vladimir Prus <vladimir@codesourcery.com>
* gdb.base/pending.exp: No longer expect "Pending breakpoint resolved"
messages.
* gdb.base/chng-syms.exp: Likewise.
* gdb.base/unload.exp: Likewise.
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/chng-syms.exp,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- src/gdb/testsuite/gdb.base/chng-syms.exp 2007/08/23 18:14:16 1.8
+++ src/gdb/testsuite/gdb.base/chng-syms.exp 2007/09/22 19:33:32 1.9
@@ -105,10 +105,10 @@
gdb_run_cmd
gdb_expect {
- -re "Error in re-setting .*No symbol .var1..*Program exited normally.*$gdb_prompt $" {
+ -re ".*No symbol .var1..*Program exited normally.*$gdb_prompt $" {
pass "running with invalidated bpt condition after executable changes"
}
- -re "Error in re-setting .*No symbol .var1..*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {
+ -re "No symbol .var1..*Breakpoint .*,( 0x.* in)? (\[^ \]*)exit .*$gdb_prompt $" {
pass "running with invalidated bpt condition after executable changes"
}
-re "$gdb_prompt $" {
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/pending.exp,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -r1.10 -r1.11
--- src/gdb/testsuite/gdb.base/pending.exp 2007/08/23 18:14:17 1.10
+++ src/gdb/testsuite/gdb.base/pending.exp 2007/09/22 19:33:32 1.11
@@ -194,9 +194,7 @@
gdb_run_cmd
gdb_test "" \
-"Breakpoint.*at.*
-Pending breakpoint \"pendshr.c:$bp2_loc if x > 3\" resolved.*
-Breakpoint.*, main.*$mainline.*" \
+".*Breakpoint.*, main.*$mainline.*" \
"running to main"
#
@@ -204,8 +202,7 @@
#
gdb_test "enable 1" \
-"Breakpoint.*at.*
-Pending breakpoint \"pendfunc1.* resolved.*" \
+"" \
"re-enabling pending breakpoint that can resolve instantly"
#
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/unload.exp,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- src/gdb/testsuite/gdb.base/unload.exp 2007/08/23 18:14:17 1.11
+++ src/gdb/testsuite/gdb.base/unload.exp 2007/09/22 19:33:32 1.12
@@ -89,9 +89,7 @@
gdb_run_cmd
gdb_test "" \
-"Breakpoint.*at.*
-Pending breakpoint \"shrfunc1\" resolved.*
-Breakpoint.*, shrfunc1 \\\(x=3\\\).*unloadshr.c:$unloadshr_line.*" \
+".*Breakpoint.*, shrfunc1 \\\(x=3\\\).*unloadshr.c:$unloadshr_line.*" \
"running program"
gdb_test "continue" \
2007-09-23 Vladimir Prus <vladimir@codesourcery.com>
Allow a code breakpoint to have several locations
associated with it.
* breakpoint.h (enum enable_state): Remove the
bp_shlib_disabled enumerator.
(struct bp_location): New members shlib_disabled,
global_next, enabled and function_name.
Rename pending to condition_not_parsed.
* breakpoint.c (ALL_BP_LOCATIONS): Iterate over global_next.
(ALL_BP_LOCATIONS_SAFE): Likewise.
(breakpoint_enabled): Don't check for pending.
(condition_command): Free and update all locations of
a breakpoint.
(insert_bp_location): Adjust.
(software_breakpoint_inserted_here_p): Don't care
if breakpoint is enabled, as soon as it's inserted.
(print_it_typical): Print bpstat's location, not
bpstat's breakpoint's location.
(bpstat_stop_status): Iterate over all locations, not
all breakpoints.
(print_breakpoint_location): New.
(print_one_breakpoint): Renamed to
(print_one_breakpoint_location): ...this. Take
parameters to describe which location is being
printed. Modify code to properly print header
for several locations and individual locations.
(print_one_breakpoint): Print all locations.
(breakpoint_has_pc): New.
(describe_other_breakpoints): Use the above.
(check_duplicates): Renamed to...
(check_duplicates_for): .. this.
(check_duplicates): Use check_duplicates_for.
(allocate_bp_location): Adjust.
(set_raw_breakpoint_without_location): New,
extracted from set_raw_breakpoint.
(set_breakpoint_location_function): New.
(set_raw_breakpoint): Use
set_raw_breakpoint_without_location.
(make_breakpoint_permanent): Mark all locations
as inserted.
(disable_breakpoints_in_shlibs): Iterate over
locations.
(disable_breakpoints_in_unloaded_shlib): Likewise.
(re_enable_breakpoints_in_shlibs): Likewise.
(mention): Say "pending" when breakpoint has
zero locations. If breakpoint has more than one
location, say so.
(add_location_to_breakpoint): New.
(create_breakpoint): Accept symtabs_and_lines, not
symtab_and_line. Pass extra sals to
add_location_to_breakpoint.
(create_breakpoints): Pass symtabs_and_lines to
create_breakpoints.
(break_command_1): Make pending breakpoints
have zero locations.
(do_captured_breakpoint): Remove wrong allocation.
(clear_command): Iterate over all locations.
(unlink_locations_from_global_list): Renamed
from unlink_location_from_global_list. Remove
all locations.
(delete_breakpoint): Remove all locations.
Iterate over all locations when deciding which
other location to re-enable.
(all_locations_are_pending): New.
(update_breakpoint_locations): Renamed from
update_breakpoint_location. Try to match old
and new locations using names of containing
functions.
(breakpoint_re_set_one): Adjust.
(find_location_by_number): New.
(disable_command): Allow disabling individual location.
(enable_command): Allow enabling individual location.
* breakpoint.c: Adjust all uses of breakpoint's
enable state to for bp_shlib_disabled change.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.267
retrieving revision 1.268
diff -u -r1.267 -r1.268
--- src/gdb/breakpoint.c 2007/09/22 19:33:31 1.267
+++ src/gdb/breakpoint.c 2007/09/23 07:56:22 1.268
@@ -275,11 +275,11 @@
/* Similar iterators for the low-level breakpoints. */
-#define ALL_BP_LOCATIONS(B) for (B = bp_location_chain; B; B = B->next)
+#define ALL_BP_LOCATIONS(B) for (B = bp_location_chain; B; B = B->global_next)
#define ALL_BP_LOCATIONS_SAFE(B,TMP) \
for (B = bp_location_chain; \
- B ? (TMP=B->next, 1): 0; \
+ B ? (TMP=B->global_next, 1): 0; \
B = TMP)
/* True if breakpoint hit counts should be displayed in breakpoint info. */
@@ -356,7 +356,7 @@
static int
breakpoint_enabled (struct breakpoint *b)
{
- return (b->enable_state == bp_enabled && !b->pending);
+ return (b->enable_state == bp_enabled);
}
/* Set breakpoint count to NUM. */
@@ -572,10 +572,13 @@
if (b->number == bnum)
{
struct bp_location *loc = b->loc;
- if (loc->cond)
+ for (; loc; loc = loc->next)
{
- xfree (loc->cond);
- loc->cond = 0;
+ if (loc->cond)
+ {
+ xfree (loc->cond);
+ loc->cond = 0;
+ }
}
if (b->cond_string != NULL)
xfree (b->cond_string);
@@ -592,10 +595,11 @@
/* I don't know if it matters whether this is the string the user
typed in or the decompiled expression. */
b->cond_string = savestring (arg, strlen (arg));
- if (!b->pending)
+ b->condition_not_parsed = 0;
+ for (loc = b->loc; loc; loc = loc->next)
{
- b->loc->cond = parse_exp_1 (&arg,
- block_for_pc (b->loc->address), 0);
+ arg = p;
+ loc->cond = parse_exp_1 (&arg, block_for_pc (loc->address), 0);
if (*arg)
error (_("Junk at end of expression"));
}
@@ -846,7 +850,7 @@
if (!breakpoint_enabled (bpt->owner))
return 0;
- if (bpt->inserted || bpt->duplicate)
+ if (!bpt->enabled || bpt->shlib_disabled || bpt->inserted || bpt->duplicate)
return 0;
/* Initialize the target-specific information. */
@@ -969,7 +973,7 @@
{
/* See also: disable_breakpoints_in_shlibs. */
val = 0;
- bpt->owner->enable_state = bp_shlib_disabled;
+ bpt->shlib_disabled = 1;
if (!*disabled_breaks)
{
fprintf_unfiltered (tmp_error_stream,
@@ -1808,9 +1812,7 @@
if (bpt->loc_type != bp_loc_software_breakpoint)
continue;
- if ((breakpoint_enabled (bpt->owner)
- || bpt->owner->enable_state == bp_permanent)
- && bpt->inserted
+ if (bpt->inserted
&& bpt->address == pc) /* bp is enabled and matches pc */
{
if (overlay_debugging
@@ -2160,6 +2162,7 @@
{
struct cleanup *old_chain, *ui_out_chain;
struct breakpoint *b;
+ struct bp_location *bl;
struct ui_stream *stb;
stb = ui_out_stream_new (uiout);
old_chain = make_cleanup_ui_out_stream_delete (stb);
@@ -2167,15 +2170,16 @@
which has since been deleted. */
if (bs->breakpoint_at == NULL)
return PRINT_UNKNOWN;
- b = bs->breakpoint_at->owner;
+ bl = bs->breakpoint_at;
+ b = bl->owner;
switch (b->type)
{
case bp_breakpoint:
case bp_hardware_breakpoint:
- if (b->loc->address != b->loc->requested_address)
- breakpoint_adjustment_warning (b->loc->requested_address,
- b->loc->address,
+ if (bl->address != bl->requested_address)
+ breakpoint_adjustment_warning (bl->requested_address,
+ bl->address,
b->number, 1);
annotate_breakpoint (b->number);
ui_out_text (uiout, "\nBreakpoint ");
@@ -2672,7 +2676,8 @@
bpstat
bpstat_stop_status (CORE_ADDR bp_addr, ptid_t ptid, int stopped_by_watchpoint)
{
- struct breakpoint *b, *temp;
+ struct breakpoint *b = NULL;
+ struct bp_location *bl;
/* True if we've hit a breakpoint (as opposed to a watchpoint). */
int real_breakpoint = 0;
/* Root of the chain of bpstat's */
@@ -2681,8 +2686,10 @@
bpstat bs = root_bs;
int thread_id = pid_to_thread_id (ptid);
- ALL_BREAKPOINTS_SAFE (b, temp)
+ ALL_BP_LOCATIONS (bl)
{
+ b = bl->owner;
+ gdb_assert (b);
if (!breakpoint_enabled (b) && b->enable_state != bp_permanent)
continue;
@@ -2697,11 +2704,11 @@
&& b->type != bp_catch_catch
&& b->type != bp_catch_throw) /* a non-watchpoint bp */
{
- if (b->loc->address != bp_addr) /* address doesn't match */
+ if (bl->address != bp_addr) /* address doesn't match */
continue;
if (overlay_debugging /* unmapped overlay section */
- && section_is_overlay (b->loc->section)
- && !section_is_mapped (b->loc->section))
+ && section_is_overlay (bl->section)
+ && !section_is_mapped (bl->section))
continue;
}
@@ -2719,11 +2726,11 @@
if (b->type == bp_hardware_breakpoint)
{
- if (b->loc->address != bp_addr)
+ if (bl->address != bp_addr)
continue;
if (overlay_debugging /* unmapped overlay section */
- && section_is_overlay (b->loc->section)
- && !section_is_mapped (b->loc->section))
+ && section_is_overlay (bl->section)
+ && !section_is_mapped (bl->section))
continue;
}
@@ -2774,7 +2781,7 @@
/* Come here if it's a watchpoint, or if the break address matches */
- bs = bpstat_alloc (b->loc, bs); /* Alloc a bpstat to explain stop */
+ bs = bpstat_alloc (bl, bs); /* Alloc a bpstat to explain stop */
/* Watchpoints may change this, if not found to have triggered. */
bs->stop = 1;
@@ -2926,19 +2933,19 @@
{
int value_is_zero = 0;
- if (b->loc->cond)
+ if (bl->cond)
{
/* Need to select the frame, with all that implies
so that the conditions will have the right context. */
select_frame (get_current_frame ());
value_is_zero
- = catch_errors (breakpoint_cond_eval, (b->loc->cond),
+ = catch_errors (breakpoint_cond_eval, (bl->cond),
"Error in testing breakpoint condition:\n",
RETURN_MASK_ALL);
/* FIXME-someday, should give breakpoint # */
free_all_values ();
}
- if (b->loc->cond && value_is_zero)
+ if (bl->cond && value_is_zero)
{
bs->stop = 0;
/* Don't consider this a hit. */
@@ -2985,9 +2992,9 @@
/* The value of a hardware watchpoint hasn't changed, but the
intermediate memory locations we are watching may have. */
if (bs && !bs->stop &&
- (bs->breakpoint_at->owner->type == bp_hardware_watchpoint ||
- bs->breakpoint_at->owner->type == bp_read_watchpoint ||
- bs->breakpoint_at->owner->type == bp_access_watchpoint))
+ (b->type == bp_hardware_watchpoint ||
+ b->type == bp_read_watchpoint ||
+ b->type == bp_access_watchpoint))
{
remove_breakpoints ();
insert_breakpoints ();
@@ -3349,10 +3356,54 @@
*cp_list = bs;
}
+static void print_breakpoint_location (struct breakpoint *b,
+ struct bp_location *loc,
+ char *wrap_indent,
+ struct ui_stream *stb)
+{
+ if (b->source_file)
+ {
+ struct symbol *sym
+ = find_pc_sect_function (loc->address, loc->section);
+ if (sym)
+ {
+ ui_out_text (uiout, "in ");
+ ui_out_field_string (uiout, "func",
+ SYMBOL_PRINT_NAME (sym));
+ ui_out_wrap_hint (uiout, wrap_indent);
+ ui_out_text (uiout, " at ");
+ }
+ ui_out_field_string (uiout, "file", b->source_file);
+ ui_out_text (uiout, ":");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ struct symtab_and_line sal = find_pc_line (loc->address, 0);
+ char *fullname = symtab_to_fullname (sal.symtab);
+
+ if (fullname)
+ ui_out_field_string (uiout, "fullname", fullname);
+ }
+
+ ui_out_field_int (uiout, "line", b->line_number);
+ }
+ else if (!b->loc)
+ {
+ ui_out_field_string (uiout, "pending", b->addr_string);
+ }
+ else
+ {
+ print_address_symbolic (loc->address, stb->stream, demangle, "");
+ ui_out_field_stream (uiout, "at", stb);
+ }
+}
+
/* Print B to gdb_stdout. */
static void
-print_one_breakpoint (struct breakpoint *b,
- CORE_ADDR *last_addr)
+print_one_breakpoint_location (struct breakpoint *b,
+ struct bp_location *loc,
+ int loc_number,
+ CORE_ADDR *last_addr)
{
struct command_line *l;
struct symbol *sym;
@@ -3397,30 +3448,80 @@
struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb);
struct cleanup *bkpt_chain;
+ int header_of_multiple = 0;
+ int part_of_multiple = (loc != NULL);
+
+ gdb_assert (!loc || loc_number != 0);
+ /* See comment in print_one_breakpoint concerning
+ treatment of breakpoints with single disabled
+ location. */
+ if (loc == NULL
+ && (b->loc != NULL
+ && (b->loc->next != NULL || !b->loc->enabled)))
+ header_of_multiple = 1;
+ if (loc == NULL)
+ loc = b->loc;
+
annotate_record ();
bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "bkpt");
/* 1 */
annotate_field (0);
- ui_out_field_int (uiout, "number", b->number);
+ if (part_of_multiple)
+ {
+ char *formatted;
+ asprintf (&formatted, "%d.%d", b->number, loc_number);
+ ui_out_field_string (uiout, "number", formatted);
+ xfree (formatted);
+ }
+ else
+ {
+ ui_out_field_int (uiout, "number", b->number);
+ }
/* 2 */
annotate_field (1);
- if (((int) b->type >= (sizeof (bptypes) / sizeof (bptypes[0])))
- || ((int) b->type != bptypes[(int) b->type].type))
- internal_error (__FILE__, __LINE__,
- _("bptypes table does not describe type #%d."),
- (int) b->type);
- ui_out_field_string (uiout, "type", bptypes[(int) b->type].description);
+ if (part_of_multiple)
+ ui_out_field_skip (uiout, "type");
+ else
+ {
+ if (((int) b->type >= (sizeof (bptypes) / sizeof (bptypes[0])))
+ || ((int) b->type != bptypes[(int) b->type].type))
+ internal_error (__FILE__, __LINE__,
+ _("bptypes table does not describe type #%d."),
+ (int) b->type);
+ ui_out_field_string (uiout, "type", bptypes[(int) b->type].description);
+ }
/* 3 */
annotate_field (2);
- ui_out_field_string (uiout, "disp", bpdisps[(int) b->disposition]);
+ if (part_of_multiple)
+ ui_out_field_skip (uiout, "disp");
+ else
+ ui_out_field_string (uiout, "disp", bpdisps[(int) b->disposition]);
+
/* 4 */
annotate_field (3);
- ui_out_field_fmt (uiout, "enabled", "%c", bpenables[(int) b->enable_state]);
- ui_out_spaces (uiout, 2);
+ if (part_of_multiple)
+ ui_out_field_string (uiout, "enabled",
+ loc->shlib_disabled
+ ? (loc->enabled ? "y(p)" : "n(p)")
+ : (loc->enabled ? "y" : "n"));
+ else
+ {
+ int pending = (b->loc == NULL || b->loc->shlib_disabled);
+ /* For header of multiple, there's no point showing pending
+ state -- it will be apparent from the locations. */
+ if (header_of_multiple)
+ pending = 0;
+ ui_out_field_fmt (uiout, "enabled", "%c%s",
+ bpenables[(int) b->enable_state],
+ pending ? "(p)" : "");
+ if (!pending)
+ ui_out_spaces (uiout, 3);
+ }
+
/* 5 and 6 */
strcpy (wrap_indent, " ");
@@ -3433,7 +3534,14 @@
}
if (b->ops != NULL && b->ops->print_one != NULL)
- b->ops->print_one (b, last_addr);
+ {
+ /* Although the print_one can possibly print
+ all locations, calling it here is not likely
+ to get any nice result. So, make sure there's
+ just one location. */
+ gdb_assert (b->loc == NULL || b->loc->next == NULL);
+ b->ops->print_one (b, last_addr);
+ }
else
switch (b->type)
{
@@ -3545,51 +3653,22 @@
if (addressprint)
{
annotate_field (4);
- if (b->pending)
+ if (b->loc == NULL)
ui_out_field_string (uiout, "addr", "<PENDING>");
+ else if (header_of_multiple)
+ ui_out_field_string (uiout, "addr", "<MULTIPLE>");
else
- ui_out_field_core_addr (uiout, "addr", b->loc->address);
+ ui_out_field_core_addr (uiout, "addr", loc->address);
}
annotate_field (5);
- *last_addr = b->loc->address;
- if (b->source_file)
- {
- sym = find_pc_sect_function (b->loc->address, b->loc->section);
- if (sym)
- {
- ui_out_text (uiout, "in ");
- ui_out_field_string (uiout, "func",
- SYMBOL_PRINT_NAME (sym));
- ui_out_wrap_hint (uiout, wrap_indent);
- ui_out_text (uiout, " at ");
- }
- ui_out_field_string (uiout, "file", b->source_file);
- ui_out_text (uiout, ":");
-
- if (ui_out_is_mi_like_p (uiout))
- {
- struct symtab_and_line sal = find_pc_line (b->loc->address, 0);
- char *fullname = symtab_to_fullname (sal.symtab);
-
- if (fullname)
- ui_out_field_string (uiout, "fullname", fullname);
- }
-
- ui_out_field_int (uiout, "line", b->line_number);
- }
- else if (b->pending)
- {
- ui_out_field_string (uiout, "pending", b->addr_string);
- }
- else
- {
- print_address_symbolic (b->loc->address, stb->stream, demangle, "");
- ui_out_field_stream (uiout, "at", stb);
- }
+ if (!header_of_multiple)
+ print_breakpoint_location (b, loc, wrap_indent, stb);
+ if (b->loc)
+ *last_addr = b->loc->address;
break;
}
- if (b->thread != -1)
+ if (!part_of_multiple && b->thread != -1)
{
/* FIXME: This seems to be redundant and lost here; see the
"stop only in" line a little further down. */
@@ -3599,7 +3678,7 @@
ui_out_text (uiout, "\n");
- if (frame_id_p (b->frame_id))
+ if (part_of_multiple && frame_id_p (b->frame_id))
{
annotate_field (6);
ui_out_text (uiout, "\tstop only in stack frame at ");
@@ -3609,27 +3688,18 @@
ui_out_text (uiout, "\n");
}
- if (b->loc->cond && !ada_exception_catchpoint_p (b))
+ if (!part_of_multiple && b->cond_string && !ada_exception_catchpoint_p (b))
{
/* We do not print the condition for Ada exception catchpoints
because the condition is an internal implementation detail
that we do not want to expose to the user. */
annotate_field (7);
ui_out_text (uiout, "\tstop only if ");
- print_expression (b->loc->cond, stb->stream);
- ui_out_field_stream (uiout, "cond", stb);
- ui_out_text (uiout, "\n");
- }
-
- if (b->pending && b->cond_string)
- {
- annotate_field (7);
- ui_out_text (uiout, "\tstop only if ");
ui_out_field_string (uiout, "cond", b->cond_string);
ui_out_text (uiout, "\n");
}
- if (b->thread != -1)
+ if (!part_of_multiple && b->thread != -1)
{
/* FIXME should make an annotation for this */
ui_out_text (uiout, "\tstop only in thread ");
@@ -3637,7 +3707,7 @@
ui_out_text (uiout, "\n");
}
- if (show_breakpoint_hit_counts && b->hit_count)
+ if (!part_of_multiple && show_breakpoint_hit_counts && b->hit_count)
{
/* FIXME should make an annotation for this */
if (ep_is_catchpoint (b))
@@ -3655,10 +3725,10 @@
/* Output the count also if it is zero, but only if this is
mi. FIXME: Should have a better test for this. */
if (ui_out_is_mi_like_p (uiout))
- if (show_breakpoint_hit_counts && b->hit_count == 0)
+ if (!part_of_multiple && show_breakpoint_hit_counts && b->hit_count == 0)
ui_out_field_int (uiout, "times", b->hit_count);
- if (b->ignore_count)
+ if (!part_of_multiple && b->ignore_count)
{
annotate_field (8);
ui_out_text (uiout, "\tignore next ");
@@ -3666,7 +3736,7 @@
ui_out_text (uiout, " hits\n");
}
- if ((l = b->commands))
+ if (!part_of_multiple && (l = b->commands))
{
struct cleanup *script_chain;
@@ -3679,6 +3749,35 @@
do_cleanups (old_chain);
}
+static void
+print_one_breakpoint (struct breakpoint *b,
+ CORE_ADDR *last_addr)
+{
+ print_one_breakpoint_location (b, NULL, 0, last_addr);
+
+ /* If this breakpoint has custom print function,
+ it's already printed. Otherwise, print individual
+ locations, if any. */
+ if (b->ops == NULL || b->ops->print_one == NULL)
+ {
+ /* If breakpoint has a single location that is
+ disabled, we print it as if it had
+ several locations, since otherwise it's hard to
+ represent "breakpoint enabled, location disabled"
+ situation. */
+ if (b->loc
+ && (b->loc->next || !b->loc->enabled)
+ && !ui_out_is_mi_like_p (uiout))
+ {
+ struct bp_location *loc;
+ int n = 1;
+ for (loc = b->loc; loc; loc = loc->next, ++n)
+ print_one_breakpoint_location (b, loc, n, last_addr);
+ }
+ }
+}
+
+
struct captured_breakpoint_query_args
{
int bnum;
@@ -3771,7 +3870,7 @@
annotate_breakpoints_headers ();
if (nr_printable_breakpoints > 0)
annotate_field (0);
- ui_out_table_header (uiout, 3, ui_left, "number", "Num"); /* 1 */
+ ui_out_table_header (uiout, 7, ui_left, "number", "Num"); /* 1 */
if (nr_printable_breakpoints > 0)
annotate_field (1);
ui_out_table_header (uiout, 14, ui_left, "type", "Type"); /* 2 */
@@ -3780,7 +3879,7 @@
ui_out_table_header (uiout, 4, ui_left, "disp", "Disp"); /* 3 */
if (nr_printable_breakpoints > 0)
annotate_field (3);
- ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); /* 4 */
+ ui_out_table_header (uiout, 4, ui_left, "enabled", "Enb"); /* 4 */
if (addressprint)
{
if (nr_printable_breakpoints > 0)
@@ -3852,6 +3951,19 @@
breakpoint_1 (bnum, 1);
}
+static int
+breakpoint_has_pc (struct breakpoint *b, CORE_ADDR pc, asection *section)
+{
+ struct bp_location *bl = b->loc;
+ for (; bl; bl = bl->next)
+ {
+ if (bl->address == pc
+ && (!overlay_debugging || bl->section == section))
+ return 1;
+ }
+ return 0;
+}
+
/* Print a message describing any breakpoints set at PC. */
static void
@@ -3861,9 +3973,7 @@
struct breakpoint *b;
ALL_BREAKPOINTS (b)
- if (b->loc->address == pc) /* address match / overlay match */
- if (!b->pending && (!overlay_debugging || b->loc->section == section))
- others++;
+ others += breakpoint_has_pc (b, pc, section);
if (others > 0)
{
if (others == 1)
@@ -3871,26 +3981,24 @@
else /* if (others == ???) */
printf_filtered (_("Note: breakpoints "));
ALL_BREAKPOINTS (b)
- if (b->loc->address == pc) /* address match / overlay match */
- if (!b->pending && (!overlay_debugging || b->loc->section == section))
- {
- others--;
- printf_filtered ("%d", b->number);
- if (b->thread == -1 && thread != -1)
- printf_filtered (" (all threads)");
- else if (b->thread != -1)
- printf_filtered (" (thread %d)", b->thread);
- printf_filtered ("%s%s ",
- ((b->enable_state == bp_disabled ||
- b->enable_state == bp_shlib_disabled ||
- b->enable_state == bp_call_disabled)
- ? " (disabled)"
- : b->enable_state == bp_permanent
- ? " (permanent)"
- : ""),
- (others > 1) ? ","
- : ((others == 1) ? " and" : ""));
- }
+ if (breakpoint_has_pc (b, pc, section))
+ {
+ others--;
+ printf_filtered ("%d", b->number);
+ if (b->thread == -1 && thread != -1)
+ printf_filtered (" (all threads)");
+ else if (b->thread != -1)
+ printf_filtered (" (thread %d)", b->thread);
+ printf_filtered ("%s%s ",
+ ((b->enable_state == bp_disabled ||
+ b->enable_state == bp_call_disabled)
+ ? " (disabled)"
+ : b->enable_state == bp_permanent
+ ? " (permanent)"
+ : ""),
+ (others > 1) ? ","
+ : ((others == 1) ? " and" : ""));
+ }
printf_filtered (_("also set at pc "));
deprecated_print_address_numeric (pc, 1, gdb_stdout);
printf_filtered (".\n");
@@ -3951,22 +4059,17 @@
that one the official one, and the rest as duplicates. */
static void
-check_duplicates (struct breakpoint *bpt)
+check_duplicates_for (CORE_ADDR address, asection *section)
{
struct bp_location *b;
int count = 0;
struct bp_location *perm_bp = 0;
- CORE_ADDR address = bpt->loc->address;
- asection *section = bpt->loc->section;
-
- if (! breakpoint_address_is_meaningful (bpt))
- return;
ALL_BP_LOCATIONS (b)
if (b->owner->enable_state != bp_disabled
- && b->owner->enable_state != bp_shlib_disabled
- && !b->owner->pending
&& b->owner->enable_state != bp_call_disabled
+ && b->enabled
+ && !b->shlib_disabled
&& b->address == address /* address / overlay match */
&& (!overlay_debugging || b->section == section)
&& breakpoint_address_is_meaningful (b->owner))
@@ -3999,9 +4102,8 @@
if (b != perm_bp)
{
if (b->owner->enable_state != bp_disabled
- && b->owner->enable_state != bp_shlib_disabled
- && !b->owner->pending
&& b->owner->enable_state != bp_call_disabled
+ && b->enabled && !b->shlib_disabled
&& b->address == address /* address / overlay match */
&& (!overlay_debugging || b->section == section)
&& breakpoint_address_is_meaningful (b->owner))
@@ -4018,6 +4120,18 @@
}
static void
+check_duplicates (struct breakpoint *bpt)
+{
+ struct bp_location *bl = bpt->loc;
+
+ if (! breakpoint_address_is_meaningful (bpt))
+ return;
+
+ for (; bl; bl = bl->next)
+ check_duplicates_for (bl->address, bl->section);
+}
+
+static void
breakpoint_adjustment_warning (CORE_ADDR from_addr, CORE_ADDR to_addr,
int bnum, int have_bnum)
{
@@ -4089,6 +4203,8 @@
loc->owner = bpt;
loc->cond = NULL;
+ loc->shlib_disabled = 0;
+ loc->enabled = 1;
switch (bp_type)
{
@@ -4134,9 +4250,9 @@
bp_location_chain = loc;
else
{
- while (loc_p->next)
- loc_p = loc_p->next;
- loc_p->next = loc;
+ while (loc_p->global_next)
+ loc_p = loc_p->global_next;
+ loc_p->global_next = loc;
}
return loc;
@@ -4149,53 +4265,21 @@
xfree (loc);
}
-/* set_raw_breakpoint() is a low level routine for allocating and
- partially initializing a breakpoint of type BPTYPE. The newly
- created breakpoint's address, section, source file name, and line
- number are provided by SAL. The newly created and partially
- initialized breakpoint is added to the breakpoint chain and
- is also returned as the value of this function.
-
- It is expected that the caller will complete the initialization of
- the newly created breakpoint struct as well as output any status
- information regarding the creation of a new breakpoint. In
- particular, set_raw_breakpoint() does NOT set the breakpoint
- number! Care should be taken to not allow an error() to occur
- prior to completing the initialization of the breakpoint. If this
- should happen, a bogus breakpoint will be left on the chain. */
+/* Helper to set_raw_breakpoint below. Creates a breakpoint
+ that has type BPTYPE and has no locations as yet. */
struct breakpoint *
-set_raw_breakpoint (struct symtab_and_line sal, enum bptype bptype)
+set_raw_breakpoint_without_location (enum bptype bptype)
{
struct breakpoint *b, *b1;
- CORE_ADDR adjusted_address;
b = (struct breakpoint *) xmalloc (sizeof (struct breakpoint));
memset (b, 0, sizeof (*b));
- /* Adjust the breakpoint's address prior to allocating a location.
- Once we call allocate_bp_location(), that mostly uninitialized
- location will be placed on the location chain. Adjustment of the
- breakpoint may cause read_memory_nobpt() to be called and we do
- not want its scan of the location chain to find a breakpoint and
- location that's only been partially initialized. */
- adjusted_address = adjust_breakpoint_address (sal.pc, bptype);
-
- b->loc = allocate_bp_location (b, bptype);
- b->loc->requested_address = sal.pc;
- b->loc->address = adjusted_address;
-
- if (sal.symtab == NULL)
- b->source_file = NULL;
- else
- b->source_file = savestring (sal.symtab->filename,
- strlen (sal.symtab->filename));
- b->loc->section = sal.section;
b->type = bptype;
b->language = current_language->la_language;
b->input_radix = input_radix;
b->thread = -1;
- b->line_number = sal.line;
b->enable_state = bp_enabled;
b->next = 0;
b->silent = 0;
@@ -4207,7 +4291,7 @@
b->forked_inferior_pid = 0;
b->exec_pathname = NULL;
b->ops = NULL;
- b->pending = 0;
+ b->condition_not_parsed = 0;
/* Add this breakpoint to the end of the chain
so that a list of breakpoints will come out in order
@@ -4222,6 +4306,65 @@
b1 = b1->next;
b1->next = b;
}
+ return b;
+}
+
+/* Initialize loc->function_name. */
+static void
+set_breakpoint_location_function (struct bp_location *loc)
+{
+ if (loc->owner->type == bp_breakpoint
+ || loc->owner->type == bp_hardware_breakpoint)
+ {
+ find_pc_partial_function (loc->address, &(loc->function_name),
+ NULL, NULL);
+ if (loc->function_name)
+ loc->function_name = xstrdup (loc->function_name);
+ }
+}
+
+/* set_raw_breakpoint is a low level routine for allocating and
+ partially initializing a breakpoint of type BPTYPE. The newly
+ created breakpoint's address, section, source file name, and line
+ number are provided by SAL. The newly created and partially
+ initialized breakpoint is added to the breakpoint chain and
+ is also returned as the value of this function.
+
+ It is expected that the caller will complete the initialization of
+ the newly created breakpoint struct as well as output any status
+ information regarding the creation of a new breakpoint. In
+ particular, set_raw_breakpoint does NOT set the breakpoint
+ number! Care should be taken to not allow an error to occur
+ prior to completing the initialization of the breakpoint. If this
+ should happen, a bogus breakpoint will be left on the chain. */
+
+struct breakpoint *
+set_raw_breakpoint (struct symtab_and_line sal, enum bptype bptype)
+{
+ struct breakpoint *b = set_raw_breakpoint_without_location (bptype);
+ CORE_ADDR adjusted_address;
+
+ /* Adjust the breakpoint's address prior to allocating a location.
+ Once we call allocate_bp_location(), that mostly uninitialized
+ location will be placed on the location chain. Adjustment of the
+ breakpoint may cause read_memory_nobpt() to be called and we do
+ not want its scan of the location chain to find a breakpoint and
+ location that's only been partially initialized. */
+ adjusted_address = adjust_breakpoint_address (sal.pc, bptype);
+
+ b->loc = allocate_bp_location (b, bptype);
+ b->loc->requested_address = sal.pc;
+ b->loc->address = adjusted_address;
+
+ if (sal.symtab == NULL)
+ b->source_file = NULL;
+ else
+ b->source_file = savestring (sal.symtab->filename,
+ strlen (sal.symtab->filename));
+ b->loc->section = sal.section;
+ b->line_number = sal.line;
+
+ set_breakpoint_location_function (b->loc);
check_duplicates (b);
breakpoints_changed ();
@@ -4235,10 +4378,16 @@
void
make_breakpoint_permanent (struct breakpoint *b)
{
+ struct bp_location *bl;
b->enable_state = bp_permanent;
- /* By definition, permanent breakpoints are already present in the code. */
- b->loc->inserted = 1;
+ /* By definition, permanent breakpoints are already present in the code.
+ Mark all locations as inserted. For now, make_breakpoint_permanent
+ is called in just one place, so it's hard to say if it's reasonable
+ to have permanent breakpoint with multiple locations or not,
+ but it's easy to implmement. */
+ for (bl = b->loc; bl; bl = bl->next)
+ bl->inserted = 1;
}
static struct breakpoint *
@@ -4431,20 +4580,28 @@
void
disable_breakpoints_in_shlibs (void)
{
- struct breakpoint *b;
+ struct bp_location *loc;
int disabled_shlib_breaks = 0;
- ALL_BREAKPOINTS (b)
+ ALL_BP_LOCATIONS (loc)
{
+ struct breakpoint *b = loc->owner;
+ /* We apply the check to all breakpoints, including disabled
+ for those with loc->duplicate set. This is so that when breakpoint
+ becomes enabled, or the duplicate is removed, gdb will try to insert
+ all breakpoints. If we don't set shlib_disabled here, we'll try
+ to insert those breakpoints and fail. */
if (((b->type == bp_breakpoint) || (b->type == bp_hardware_breakpoint))
- && breakpoint_enabled (b) && !b->loc->duplicate
+ && !loc->shlib_disabled
#ifdef PC_SOLIB
- && PC_SOLIB (b->loc->address)
+ && PC_SOLIB (loc->address)
#else
- && solib_address (b->loc->address)
+ && solib_address (loc->address)
#endif
)
- b->enable_state = bp_shlib_disabled;
+ {
+ loc->shlib_disabled = 1;
+ }
}
}
@@ -4454,27 +4611,28 @@
void
disable_breakpoints_in_unloaded_shlib (struct so_list *solib)
{
- struct breakpoint *b;
+ struct bp_location *loc;
int disabled_shlib_breaks = 0;
- ALL_BREAKPOINTS (b)
+ ALL_BP_LOCATIONS (loc)
{
- if ((b->loc->loc_type == bp_loc_hardware_breakpoint
- || b->loc->loc_type == bp_loc_software_breakpoint)
- && breakpoint_enabled (b) && !b->loc->duplicate)
+ struct breakpoint *b = loc->owner;
+ if ((loc->loc_type == bp_loc_hardware_breakpoint
+ || loc->loc_type == bp_loc_software_breakpoint)
+ && !loc->shlib_disabled)
{
#ifdef PC_SOLIB
- char *so_name = PC_SOLIB (b->loc->address);
+ char *so_name = PC_SOLIB (loc->address);
#else
- char *so_name = solib_address (b->loc->address);
+ char *so_name = solib_address (loc->address);
#endif
if (so_name && !strcmp (so_name, solib->so_name))
{
- b->enable_state = bp_shlib_disabled;
+ loc->shlib_disabled = 1;
/* At this point, we cannot rely on remove_breakpoint
succeeding so we must mark the breakpoint as not inserted
to prevent future errors occurring in remove_breakpoints. */
- b->loc->inserted = 0;
+ loc->inserted = 0;
if (!disabled_shlib_breaks)
{
target_terminal_ours_for_output ();
@@ -4894,7 +5052,7 @@
{
/* i18n: cagney/2005-02-11: Below needs to be merged into a
single string. */
- if (b->pending)
+ if (b->loc == NULL)
{
printf_filtered (_(" (%s) pending."), b->addr_string);
}
@@ -4908,6 +5066,16 @@
if (b->source_file)
printf_filtered (": file %s, line %d.",
b->source_file, b->line_number);
+
+ if (b->loc->next)
+ {
+ struct bp_location *loc = b->loc;
+ int n = 0;
+ for (; loc; loc = loc->next)
+ ++n;
+ printf_filtered (" (%d locations)", n);
+ }
+
}
}
do_cleanups (old_chain);
@@ -4917,6 +5085,24 @@
}
+static struct bp_location *
+add_location_to_breakpoint (struct breakpoint *b, enum bptype bptype,
+ const struct symtab_and_line *sal)
+{
+ struct bp_location *loc, **tmp;
+
+ loc = allocate_bp_location (b, bptype);
+ for (tmp = &(b->loc); *tmp != NULL; tmp = &((*tmp)->next))
+ ;
+ *tmp = loc;
+ loc->requested_address = sal->pc;
+ loc->address = adjust_breakpoint_address (loc->requested_address,
+ bptype);
+ loc->section = sal->section;
+
+ set_breakpoint_location_function (loc);
+ return loc;
+}
/* Create a breakpoint with SAL as location. Use ADDR_STRING
as textual description of the location, and COND_STRING
@@ -4926,13 +5112,14 @@
create_breakpoints function. */
static void
-create_breakpoint (struct symtab_and_line sal, char *addr_string,
+create_breakpoint (struct symtabs_and_lines sals, char *addr_string,
char *cond_string,
enum bptype type, enum bpdisp disposition,
int thread, int ignore_count, int from_tty,
struct breakpoint *pending_bp)
{
- struct breakpoint *b;
+ struct breakpoint *b = NULL;
+ int i;
if (type == bp_hardware_breakpoint)
{
@@ -4946,50 +5133,46 @@
error (_("Hardware breakpoints used exceeds limit."));
}
- if (from_tty)
- describe_other_breakpoints (sal.pc, sal.section, thread);
-
- b = set_raw_breakpoint (sal, type);
- set_breakpoint_count (breakpoint_count + 1);
- b->number = breakpoint_count;
- b->thread = thread;
+ for (i = 0; i < sals.nelts; ++i)
+ {
+ struct symtab_and_line sal = sals.sals[i];
+ struct bp_location *loc;
+
+ if (from_tty)
+ describe_other_breakpoints (sal.pc, sal.section, thread);
+
+ if (i == 0)
+ {
+ b = set_raw_breakpoint (sal, type);
+ set_breakpoint_count (breakpoint_count + 1);
+ b->number = breakpoint_count;
+ b->thread = thread;
- b->cond_string = cond_string;
- b->ignore_count = ignore_count;
- b->enable_state = bp_enabled;
- b->disposition = disposition;
- /* If resolving a pending breakpoint, a check must be made to see if
- the user has specified a new condition or commands for the
- breakpoint. A new condition will override any condition that was
- initially specified with the initial breakpoint command. */
- if (pending_bp)
- {
- if (pending_bp->cond_string)
- b->cond_string = savestring (pending_bp->cond_string,
- strlen (pending_bp->cond_string));
-
- /* If there are commands associated with the breakpoint, they should
- be copied too. */
- if (pending_bp->commands)
- b->commands = copy_command_lines (pending_bp->commands);
-
- /* We have to copy over the ignore_count and thread as well. */
- b->ignore_count = pending_bp->ignore_count;
- b->thread = pending_bp->thread;
- }
+ b->cond_string = cond_string;
+ b->ignore_count = ignore_count;
+ b->enable_state = bp_enabled;
+ b->disposition = disposition;
- if (b->cond_string)
- {
- char *arg = b->cond_string;
- b->loc->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
- if (*arg)
+ loc = b->loc;
+ }
+ else
{
- if (pending_bp)
- error (_("Junk at end of pending breakpoint condition expression"));
- else
- error (_("Garbage %s follows condition"), arg);
+ loc = add_location_to_breakpoint (b, type, &sal);
}
- }
+
+ if (b->cond_string)
+ {
+ char *arg = b->cond_string;
+ b->loc->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
+ if (*arg)
+ {
+ if (pending_bp)
+ error (_("Junk at end of pending breakpoint condition expression"));
+ else
+ error (_("Garbage %s follows condition"), arg);
+ }
+ }
+ }
if (addr_string)
b->addr_string = addr_string;
@@ -5031,7 +5214,11 @@
int i;
for (i = 0; i < sals.nelts; ++i)
{
- create_breakpoint (sals.sals[i], addr_string[i],
+ struct symtabs_and_lines sals2;
+ sals2.sals = sals.sals + i;
+ sals2.nelts = 1;
+
+ create_breakpoint (sals2, addr_string[i],
cond_string, type, disposition,
thread, ignore_count, from_tty,
pending_bp);
@@ -5360,19 +5547,19 @@
make_cleanup (xfree, copy_arg);
- b = set_raw_breakpoint (sal, hardwareflag ? bp_hardware_breakpoint
- : bp_breakpoint);
+ b = set_raw_breakpoint_without_location (hardwareflag
+ ? bp_hardware_breakpoint
+ : bp_breakpoint);
set_breakpoint_count (breakpoint_count + 1);
b->number = breakpoint_count;
- b->loc->cond = NULL;
b->thread = thread;
b->addr_string = addr_string[0];
b->cond_string = cond_string;
b->ignore_count = ignore_count;
- b->pending = 1;
b->disposition = tempflag ? disp_del : disp_donttouch;
b->from_tty = from_tty;
b->flag = flag;
+ b->condition_not_parsed = 1;
mention (b);
}
@@ -5411,7 +5598,7 @@
struct cleanup *breakpoint_chain = NULL;
int i;
char **addr_string;
- char *cond_string;
+ char *cond_string = 0;
char *address_end;
@@ -5440,10 +5627,6 @@
cond = xcalloc (sals.nelts, sizeof (struct expression *));
make_cleanup (xfree, cond);
- /* Allocate space for all the cond strings. */
- cond_string = xcalloc (sals.nelts, sizeof (char **));
- make_cleanup (xfree, cond_string);
-
/* ----------------------------- SNIP -----------------------------
Anything added to the cleanup chain beyond this point is assumed
to be part of a breakpoint. If the breakpoint create goes
@@ -6733,23 +6916,35 @@
breakpoint chain, and add them to the 'found' chain. */
ALL_BREAKPOINTS_SAFE (b, tmp)
{
+ int match = 0;
/* Are we going to delete b? */
if (b->type != bp_none
&& b->type != bp_watchpoint
&& b->type != bp_hardware_watchpoint
&& b->type != bp_read_watchpoint
- && b->type != bp_access_watchpoint
- /* Not if b is a watchpoint of any sort... */
- && (((sal.pc && (b->loc->address == sal.pc))
- && (!section_is_overlay (b->loc->section)
- || b->loc->section == sal.section))
- /* Yes, if sal.pc matches b (modulo overlays). */
- || ((default_match || (0 == sal.pc))
- && b->source_file != NULL
- && sal.symtab != NULL
- && strcmp (b->source_file, sal.symtab->filename) == 0
- && b->line_number == sal.line)))
- /* Yes, if sal source file and line matches b. */
+ && b->type != bp_access_watchpoint)
+ {
+ struct bp_location *loc = b->loc;
+ for (; loc; loc = loc->next)
+ {
+ int pc_match = sal.pc
+ && (loc->address == sal.pc)
+ && (!section_is_overlay (loc->section)
+ || loc->section == sal.section);
+ int line_match = ((default_match || (0 == sal.pc))
+ && b->source_file != NULL
+ && sal.symtab != NULL
+ && strcmp (b->source_file, sal.symtab->filename) == 0
+ && b->line_number == sal.line);
+ if (pc_match || line_match)
+ {
+ match = 1;
+ break;
+ }
+ }
+ }
+
+ if (match)
{
/* Remove it from breakpoint_chain... */
if (b == breakpoint_chain)
@@ -6824,6 +7019,35 @@
}
}
+/* Remove locations of breakpoint BPT from
+ the global list of breakpoint locations. */
+
+static void
+unlink_locations_from_global_list (struct breakpoint *bpt)
+{
+ /* This code assumes that the locations
+ of a breakpoint are found in the global list
+ in the same order, but not necessary adjacent. */
+ struct bp_location **tmp = &bp_location_chain;
+ struct bp_location *here = bpt->loc;
+
+ if (here == NULL)
+ return;
+
+ for (; *tmp && here;)
+ {
+ if (*tmp == here)
+ {
+ *tmp = here->global_next;
+ here = here->next;
+ }
+ else
+ {
+ tmp = &((*tmp)->global_next);
+ }
+ }
+}
+
/* Delete a breakpoint and clean up all traces of it in the data
structures. */
@@ -6856,17 +7080,23 @@
deprecated_delete_breakpoint_hook (bpt);
breakpoint_delete_event (bpt->number);
- if (bpt->loc->inserted)
- remove_breakpoint (bpt->loc, mark_inserted);
+ for (loc = bpt->loc; loc; loc = loc->next)
+ {
+ if (loc->inserted)
+ remove_breakpoint (loc, mark_inserted);
+
+ free_valchain (loc);
- free_valchain (bpt->loc);
+ if (loc->cond)
+ xfree (loc->cond);
+
+ if (loc->function_name)
+ xfree (loc->function_name);
+ }
if (breakpoint_chain == bpt)
breakpoint_chain = bpt->next;
- if (bp_location_chain == bpt->loc)
- bp_location_chain = bpt->loc->next;
-
/* If we have callback-style exception catchpoints, don't go through
the adjustments to the C++ runtime library etc. if the inferior
isn't actually running. target_enable_exception_callback for a
@@ -6896,82 +7126,83 @@
break;
}
- ALL_BP_LOCATIONS (loc)
- if (loc->next == bpt->loc)
- {
- loc->next = bpt->loc->next;
- break;
- }
+ unlink_locations_from_global_list (bpt);
check_duplicates (bpt);
- /* If this breakpoint was inserted, and there is another breakpoint
- at the same address, we need to insert the other breakpoint. */
- if (bpt->loc->inserted
- && bpt->type != bp_hardware_watchpoint
+
+ if (bpt->type != bp_hardware_watchpoint
&& bpt->type != bp_read_watchpoint
&& bpt->type != bp_access_watchpoint
&& bpt->type != bp_catch_fork
&& bpt->type != bp_catch_vfork
&& bpt->type != bp_catch_exec)
- {
- ALL_BREAKPOINTS (b)
- if (b->loc->address == bpt->loc->address
- && b->loc->section == bpt->loc->section
- && !b->loc->duplicate
- && b->enable_state != bp_disabled
- && b->enable_state != bp_shlib_disabled
- && !b->pending
- && b->enable_state != bp_call_disabled)
- {
- int val;
-
- /* We should never reach this point if there is a permanent
- breakpoint at the same address as the one being deleted.
- If there is a permanent breakpoint somewhere, it should
- always be the only one inserted. */
- if (b->enable_state == bp_permanent)
- internal_error (__FILE__, __LINE__,
- _("another breakpoint was inserted on top of "
- "a permanent breakpoint"));
-
- memset (&b->loc->target_info, 0, sizeof (b->loc->target_info));
- b->loc->target_info.placed_address = b->loc->address;
- if (b->type == bp_hardware_breakpoint)
- val = target_insert_hw_breakpoint (&b->loc->target_info);
- else
- val = target_insert_breakpoint (&b->loc->target_info);
+ for (loc = bpt->loc; loc; loc = loc->next)
+ {
+ /* If this breakpoint location was inserted, and there is
+ another breakpoint at the same address, we need to
+ insert the other breakpoint. */
+ if (loc->inserted)
+ {
+ struct bp_location *loc2;
+ ALL_BP_LOCATIONS (loc2)
+ if (loc2->address == loc->address
+ && loc2->section == loc->section
+ && !loc->duplicate
+ && loc2->owner->enable_state != bp_disabled
+ && loc2->enabled
+ && !loc2->shlib_disabled
+ && loc2->owner->enable_state != bp_call_disabled)
+ {
+ int val;
- /* If there was an error in the insert, print a message, then stop execution. */
- if (val != 0)
- {
- struct ui_file *tmp_error_stream = mem_fileopen ();
- make_cleanup_ui_file_delete (tmp_error_stream);
-
+ /* We should never reach this point if there is a permanent
+ breakpoint at the same address as the one being deleted.
+ If there is a permanent breakpoint somewhere, it should
+ always be the only one inserted. */
+ if (loc2->owner->enable_state == bp_permanent)
+ internal_error (__FILE__, __LINE__,
+ _("another breakpoint was inserted on top of "
+ "a permanent breakpoint"));
+
+ memset (&loc2->target_info, 0, sizeof (loc2->target_info));
+ loc2->target_info.placed_address = loc2->address;
+ if (b->type == bp_hardware_breakpoint)
+ val = target_insert_hw_breakpoint (&loc2->target_info);
+ else
+ val = target_insert_breakpoint (&loc2->target_info);
- if (b->type == bp_hardware_breakpoint)
- {
- fprintf_unfiltered (tmp_error_stream,
- "Cannot insert hardware breakpoint %d.\n"
- "You may have requested too many hardware breakpoints.\n",
- b->number);
- }
- else
- {
- fprintf_unfiltered (tmp_error_stream, "Cannot insert breakpoint %d.\n", b->number);
- fprintf_filtered (tmp_error_stream, "Error accessing memory address ");
- deprecated_print_address_numeric (b->loc->address, 1, tmp_error_stream);
- fprintf_filtered (tmp_error_stream, ": %s.\n",
- safe_strerror (val));
- }
-
- fprintf_unfiltered (tmp_error_stream,"The same program may be running in another process.");
- target_terminal_ours_for_output ();
- error_stream(tmp_error_stream);
- }
- else
- b->loc->inserted = 1;
- }
- }
+ /* If there was an error in the insert, print a message, then stop execution. */
+ if (val != 0)
+ {
+ struct ui_file *tmp_error_stream = mem_fileopen ();
+ make_cleanup_ui_file_delete (tmp_error_stream);
+
+
+ if (b->type == bp_hardware_breakpoint)
+ {
+ fprintf_unfiltered (tmp_error_stream,
+ "Cannot insert hardware breakpoint %d.\n"
+ "You may have requested too many hardware breakpoints.\n",
+ b->number);
+ }
+ else
+ {
+ fprintf_unfiltered (tmp_error_stream, "Cannot insert breakpoint %d.\n", b->number);
+ fprintf_filtered (tmp_error_stream, "Error accessing memory address ");
+ deprecated_print_address_numeric (loc2->address, 1, tmp_error_stream);
+ fprintf_filtered (tmp_error_stream, ": %s.\n",
+ safe_strerror (val));
+ }
+
+ fprintf_unfiltered (tmp_error_stream,"The same program may be running in another process.");
+ target_terminal_ours_for_output ();
+ error_stream(tmp_error_stream);
+ }
+ else
+ loc2->inserted = 1;
+ }
+ }
+ }
free_command_lines (&bpt->commands);
if (bpt->cond_string != NULL)
@@ -7013,9 +7244,12 @@
bp, we mark it as deleted before freeing its storage. */
bpt->type = bp_none;
- if (bpt->loc->cond)
- xfree (bpt->loc->cond);
- xfree (bpt->loc);
+ for (loc = bpt->loc; loc;)
+ {
+ struct bp_location *loc_next = loc->next;
+ xfree (loc);
+ loc = loc_next;
+ }
xfree (bpt);
}
@@ -7083,94 +7317,95 @@
map_breakpoint_numbers (arg, delete_breakpoint);
}
-static void
-unlink_locations_from_global_list (struct breakpoint *bpt)
- /* Remove locations of this breakpoint from the list of
- all breakpoint locations. */
+static int
+all_locations_are_pending (struct bp_location *loc)
{
- struct bp_location **tmp = &bp_location_chain;
- struct bp_location *here = bpt->loc;
-
- if (here == NULL)
- return;
-
- for (; *tmp && *tmp != here; tmp = &((*tmp)->next));
- gdb_assert (*tmp);
-
- *tmp = here->next;
+ for (; loc; loc = loc->next)
+ if (!loc->shlib_disabled)
+ return 0;
+ return 1;
}
-
static void
-update_breakpoint_location (struct breakpoint *b,
- struct symtabs_and_lines sals)
+update_breakpoint_locations (struct breakpoint *b,
+ struct symtabs_and_lines sals)
{
int i;
char *s;
- /* FIXME: memleak. */
- struct bp_location *existing = b->loc;
- struct bp_location *loc;
- struct symtab_and_line sal;
-
- if (b->enable_state == bp_shlib_disabled && sals.nelts == 0)
+ struct bp_location *existing_locations = b->loc;
+
+ /* If there's no new locations, and all existing locations
+ are pending, don't do anything. This optimizes
+ the common case where all locations are in the same
+ shared library, that was unloaded. We'd like to
+ retain the location, so that when the library
+ is loaded again, we don't loose the enabled/disabled
+ status of the individual locations. */
+ if (all_locations_are_pending (existing_locations) && sals.nelts == 0)
return;
unlink_locations_from_global_list (b);
b->loc = NULL;
- gdb_assert (sals.nelts == 0 || sals.nelts == 1);
- if (sals.nelts == 0)
- return;
- sal = sals.sals[0];
-
- loc = allocate_bp_location (b, b->type);
- loc->requested_address = sal.pc;
- loc->address = adjust_breakpoint_address (loc->requested_address,
- b->type);
- loc->section = sal.section;
- b->loc = loc;
-
- /* Reparse conditions, they might contain references to the
- old symtab. */
- if (b->cond_string != NULL)
+ for (i = 0; i < sals.nelts; ++i)
{
- struct gdb_exception e;
-
- s = b->cond_string;
- TRY_CATCH (e, RETURN_MASK_ERROR)
- {
- loc->cond = parse_exp_1 (&s, block_for_pc (sal.pc),
- 0);
- }
- if (e.reason < 0)
- {
- warning (_("failed to reevaluate condition for breakpoint %d: %s"),
- b->number, e.message);
- b->enable_state = bp_disabled;
- }
- }
+ struct bp_location *new_loc =
+ add_location_to_breakpoint (b, b->type, &(sals.sals[i]));
- if (b->source_file != NULL)
- xfree (b->source_file);
- if (sal.symtab == NULL)
- b->source_file = NULL;
- else
- b->source_file =
- savestring (sal.symtab->filename,
- strlen (sal.symtab->filename));
+ /* Reparse conditions, they might contain references to the
+ old symtab. */
+ if (b->cond_string != NULL)
+ {
+ struct gdb_exception e;
- if (b->line_number == 0)
- b->line_number = sal.line;
+ s = b->cond_string;
+ TRY_CATCH (e, RETURN_MASK_ERROR)
+ {
+ new_loc->cond = parse_exp_1 (&s, block_for_pc (sals.sals[i].pc),
+ 0);
+ }
+ if (e.reason < 0)
+ {
+ warning (_("failed to reevaluate condition for breakpoint %d: %s"),
+ b->number, e.message);
+ new_loc->enabled = 0;
+ }
+ }
- if (b->enable_state == bp_shlib_disabled)
- b->enable_state = bp_enabled;
+ if (b->source_file != NULL)
+ xfree (b->source_file);
+ if (sals.sals[i].symtab == NULL)
+ b->source_file = NULL;
+ else
+ b->source_file =
+ savestring (sals.sals[i].symtab->filename,
+ strlen (sals.sals[i].symtab->filename));
- b->pending = 0;
+ if (b->line_number == 0)
+ b->line_number = sals.sals[i].line;
+ }
- check_duplicates (b);
+ /* If possible, carry over 'disable' status from existing breakpoints. */
+ {
+ struct bp_location *e = existing_locations;
+ for (; e; e = e->next)
+ {
+ if (!e->enabled && e->function_name)
+ {
+ struct bp_location *l = b->loc;
+ for (; l; l = l->next)
+ if (l->function_name
+ && strcmp (e->function_name, l->function_name) == 0)
+ {
+ l->enabled = 0;
+ break;
+ }
+ }
+ }
+ }
- if (existing)
- free_bp_location (existing);
+ if (existing_locations)
+ free_bp_location (existing_locations);
}
@@ -7227,8 +7462,10 @@
don't need extra messages. If breakpoint is in bp_shlib_disabled
state, then user already saw the message about that breakpoint
being disabled, and don't want to see more errors. */
- if (not_found && (b->pending || b->enable_state == bp_shlib_disabled
- || b->enable_state == bp_disabled))
+ if (not_found
+ && (b->condition_not_parsed
+ || (b->loc && b->loc->shlib_disabled)
+ || b->enable_state == bp_disabled))
not_found_and_ok = 1;
if (!not_found_and_ok)
@@ -7249,7 +7486,7 @@
gdb_assert (sals.nelts == 1);
resolve_sal_pc (&sals.sals[0]);
- if (b->pending && s && s[0])
+ if (b->condition_not_parsed && s && s[0])
{
char *cond_string = 0;
int thread = -1;
@@ -7258,9 +7495,14 @@
if (cond_string)
b->cond_string = cond_string;
b->thread = thread;
+ b->condition_not_parsed = 0;
}
- update_breakpoint_location (b, sals);
+ update_breakpoint_locations (b, sals);
+
+ /* Now that this is re-enabled, check_duplicates
+ can be used. */
+ check_duplicates (b);
xfree (sals.sals);
break;
@@ -7524,6 +7766,48 @@
}
}
+static struct bp_location *
+find_location_by_number (char *number)
+{
+ char *dot = strchr (number, '.');
+ char *p1;
+ int bp_num;
+ int loc_num;
+ struct breakpoint *b;
+ struct bp_location *loc;
+
+ *dot = '\0';
+
+ p1 = number;
+ bp_num = get_number_or_range (&p1);
+ if (bp_num == 0)
+ error (_("Bad breakpoint number '%s'"), number);
+
+ ALL_BREAKPOINTS (b)
+ if (b->number == bp_num)
+ {
+ break;
+ }
+
+ if (!b || b->number != bp_num)
+ error (_("Bad breakpoint number '%s'"), number);
+
+ p1 = dot+1;
+ loc_num = get_number_or_range (&p1);
+ if (loc_num == 0)
+ error (_("Bad breakpoint location number '%s'"), number);
+
+ --loc_num;
+ loc = b->loc;
+ for (;loc_num && loc; --loc_num, loc = loc->next)
+ ;
+ if (!loc)
+ error (_("Bad breakpoint location number '%s'"), dot+1);
+
+ return loc;
+}
+
+
/* Set ignore-count of breakpoint number BPTNUM to COUNT.
If from_tty is nonzero, it prints a message to that effect,
which ends with a period (no newline). */
@@ -7579,6 +7863,13 @@
default:
continue;
}
+ else if (strchr (args, '.'))
+ {
+ struct bp_location *loc = find_location_by_number (args);
+ if (loc)
+ loc->enabled = 0;
+ check_duplicates (loc->owner);
+ }
else
map_breakpoint_numbers (args, disable_breakpoint);
}
@@ -7711,6 +8002,13 @@
default:
continue;
}
+ else if (strchr (args, '.'))
+ {
+ struct bp_location *loc = find_location_by_number (args);
+ if (loc)
+ loc->enabled = 1;
+ check_duplicates (loc->owner);
+ }
else
map_breakpoint_numbers (args, enable_breakpoint);
}
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.h,v
retrieving revision 1.50
retrieving revision 1.51
diff -u -r1.50 -r1.51
--- src/gdb/breakpoint.h 2007/09/22 19:33:31 1.50
+++ src/gdb/breakpoint.h 2007/09/23 07:56:22 1.51
@@ -143,9 +143,6 @@
{
bp_disabled, /* The eventpoint is inactive, and cannot trigger. */
bp_enabled, /* The eventpoint is active, and can trigger. */
- bp_shlib_disabled, /* The eventpoint's address is in an unloaded solib.
- The eventpoint will be automatically enabled
- and reset when that solib is loaded. */
bp_call_disabled, /* The eventpoint has been disabled while a call
into the inferior is "in flight", because some
eventpoints interfere with the implementation of
@@ -232,9 +229,14 @@
struct bp_location
{
- /* Chain pointer to the next breakpoint location. */
+ /* Chain pointer to the next breakpoint location for
+ the same parent breakpoint. */
struct bp_location *next;
+ /* Pointer to the next breakpoint location, in a global
+ list of all breakpoint locations. */
+ struct bp_location *global_next;
+
/* Type of this breakpoint location. */
enum bp_loc_type loc_type;
@@ -249,6 +251,14 @@
locations, the evaluation of expression can be different for
different locations. */
struct expression *cond;
+
+ /* This location's address is in an unloaded solib, and so this
+ location should not be inserted. It will be automatically
+ enabled when that solib is loaded. */
+ char shlib_disabled;
+
+ /* Is this particular location enabled. */
+ char enabled;
/* Nonzero if this breakpoint is now inserted. */
char inserted;
@@ -281,6 +291,8 @@
processor's architectual constraints. */
CORE_ADDR requested_address;
+ char *function_name;
+
/* Details of the placed breakpoint, when inserted. */
struct bp_target_info target_info;
@@ -423,8 +435,10 @@
second bit : 0 normal breakpoint, 1 hardware breakpoint. */
int flag;
- /* Is breakpoint pending on shlib loads? */
- int pending;
+ /* Is breakpoint's condition not yet parsed because we found
+ no location initially so had no context to parse
+ the condition in. */
+ int condition_not_parsed;
};
/* The following stuff is an abstract data type "bpstat" ("breakpoint
2007-09-23 Vladimir Prus <vladimir@codesourcery.com>
* gdb.base/annota1.exp: Adjust for 'info break'
format changes.
* gdb.base/annota3.exp: Likewise.
* gdb.base/break.exp: Likewise.
* gdb.base/condbreak.exp: Likewise.
* gdb.base/pending.exp: Likewise.
* gdb.base/sepdebug.exp: Likewise.
* gdb.base/unload.exp: Likewise.
* gdb.base/ovldbreak.exp: Likewise.
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/annota1.exp,v
retrieving revision 1.24
retrieving revision 1.25
diff -u -r1.24 -r1.25
--- src/gdb/testsuite/gdb.base/annota1.exp 2007/08/23 18:14:16 1.24
+++ src/gdb/testsuite/gdb.base/annota1.exp 2007/09/23 07:56:22 1.25
@@ -117,9 +117,9 @@
#
send_gdb "info break\n"
gdb_expect {
- -re "\r\n\032\032post-prompt\r\n\r\n\032\032breakpoints-headers\r\n\r\n\032\032field 0\r\nNum \r\n\032\032field 1\r\nType \r\n\032\032field 2\r\nDisp \r\n\032\032field 3\r\nEnb \r\n\032\032field 4\r\nAddress +\r\n\032\032field 5\r\nWhat\r\n\r\n\032\032breakpoints-table\r\n\r\n\032\032record\r\n\r\n\032\032field 0\r\n1 \r\n\032\032field 1\r\nbreakpoint \r\n\032\032field 2\r\nkeep \r\n\032\032field 3\r\ny \r\n\032\032field 4\r\n$hex +\r\n\032\032field 5\r\nin main at ${escapedsrcfile}:$main_line\r\n\r\n\032\032breakpoints-table-end\r\n$gdb_prompt$" \
+ -re "\r\n\032\032post-prompt\r\n\r\n\032\032breakpoints-headers\r\n\r\n\032\032field 0\r\nNum \r\n\032\032field 1\r\nType \r\n\032\032field 2\r\nDisp \r\n\032\032field 3\r\nEnb \r\n\032\032field 4\r\nAddress +\r\n\032\032field 5\r\nWhat\r\n\r\n\032\032breakpoints-table\r\n\r\n\032\032record\r\n\r\n\032\032field 0\r\n1 \r\n\032\032field 1\r\nbreakpoint \r\n\032\032field 2\r\nkeep \r\n\032\032field 3\r\ny \r\n\032\032field 4\r\n$hex +\r\n\032\032field 5\r\nin main at ${escapedsrcfile}:$main_line\r\n\r\n\032\032breakpoints-table-end\r\n$gdb_prompt$" \
{pass "breakpoint info"}
- -re "\r\n\032\032post-prompt\r\n\r\n\032\032breakpoints-headers\r\n\r\n\032\032field 0\r\nNum \r\n\032\032field 1\r\nType \r\n\032\032field 2\r\nDisp \r\n\032\032field 3\r\nEnb \r\n\032\032field 4\r\nAddress +\r\n\032\032field 5\r\nWhat\r\n\r\n\032\032breakpoints-table\r\n\r\n\032\032record\r\n\r\n\032\032field 0\r\n1 \r\n\032\032field 1\r\nbreakpoint \r\n\032\032field 2\r\nkeep \r\n\032\032field 3\r\ny \r\n\032\032field 4\r\n$hex +\r\n\032\032field 5\r\nin main at .*${srcfile}:$main_line\r\n\r\n\032\032breakpoints-table-end\r\n$gdb_prompt$" \
+ -re "\r\n\032\032post-prompt\r\n\r\n\032\032breakpoints-headers\r\n\r\n\032\032field 0\r\nNum \r\n\032\032field 1\r\nType \r\n\032\032field 2\r\nDisp \r\n\032\032field 3\r\nEnb \r\n\032\032field 4\r\nAddress +\r\n\032\032field 5\r\nWhat\r\n\r\n\032\032breakpoints-table\r\n\r\n\032\032record\r\n\r\n\032\032field 0\r\n1 \r\n\032\032field 1\r\nbreakpoint \r\n\032\032field 2\r\nkeep \r\n\032\032field 3\r\ny \r\n\032\032field 4\r\n$hex +\r\n\032\032field 5\r\nin main at .*${srcfile}:$main_line\r\n\r\n\032\032breakpoints-table-end\r\n$gdb_prompt$" \
{ setup_xfail "*-*-*" 1270
fail "breakpoint info"}
-re ".*$gdb_prompt$" { fail "breakpoint info" }
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/annota3.exp,v
retrieving revision 1.14
retrieving revision 1.15
diff -u -r1.14 -r1.15
--- src/gdb/testsuite/gdb.base/annota3.exp 2007/08/23 18:14:16 1.14
+++ src/gdb/testsuite/gdb.base/annota3.exp 2007/09/23 07:56:22 1.15
@@ -127,8 +127,8 @@
send_gdb "info break\n"
gdb_expect_list "breakpoint info" "$gdb_prompt$" {
"\r\n\032\032post-prompt\r\n"
- "Num Type Disp Enb Address +What\r\n"
- "1 breakpoint keep y 0x\[0-9a-zA-Z\]+ +in main at .*annota3.c:32\r\n"
+ "Num Type Disp Enb Address +What\r\n"
+ "1 breakpoint keep y 0x\[0-9a-zA-Z\]+ +in main at .*annota3.c:32\r\n"
}
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/break.exp,v
retrieving revision 1.29
retrieving revision 1.30
diff -u -r1.29 -r1.30
--- src/gdb/testsuite/gdb.base/break.exp 2007/08/23 18:14:16 1.29
+++ src/gdb/testsuite/gdb.base/break.exp 2007/09/23 07:56:22 1.30
@@ -179,7 +179,7 @@
set bp_location9 [gdb_get_line_number "set breakpoint 9 here" $srcfile1]
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$main_line.*
\[0-9\]+\[\t \]+breakpoint keep y.* in marker2 at .*$srcfile1:($bp_location8|$bp_location9).*
\[0-9\]+\[\t \]+breakpoint keep y.* in factorial$proto at .*$srcfile:$bp_location7.*
@@ -309,7 +309,7 @@
#
# check to see what breakpoints are set (temporary this time)
#
-gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
+gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in factorial$proto at .*$srcfile:$bp_location7.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/condbreak.exp,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -r1.8 -r1.9
--- src/gdb/testsuite/gdb.base/condbreak.exp 2007/08/23 18:14:16 1.8
+++ src/gdb/testsuite/gdb.base/condbreak.exp 2007/09/23 07:56:22 1.9
@@ -125,14 +125,14 @@
}
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$bp_location6.*
\[0-9\]+\[\t \]+breakpoint keep y.* in marker1$marker1_proto at .*$srcfile1:($bp_location15|$bp_location16).*
-\[\t \]+stop only if 1 == 1.*
+\[\t \]+stop only if \\(1==1\\).*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$bp_location1.*
-\[\t \]+stop only if 1 == 1.*
+\[\t \]+stop only if \\(1==1\\).*
\[0-9\]+\[\t \]+breakpoint keep y.* in marker2$marker2_proto at .*$srcfile1:($bp_location8|$bp_location9).*
-\[\t \]+stop only if a == 43.*" \
+\[\t \]+stop only if \\(a==43\\).*" \
"breakpoint info"
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/pending.exp,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- src/gdb/testsuite/gdb.base/pending.exp 2007/09/22 19:33:32 1.11
+++ src/gdb/testsuite/gdb.base/pending.exp 2007/09/23 07:56:22 1.12
@@ -71,8 +71,8 @@
}
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*pendfunc1.*" \
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*pendfunc1.*" \
"single pending breakpoint info"
#
@@ -86,8 +86,8 @@
"breakpoint function"
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*pendfunc1.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*pendfunc1.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline" \
"pending plus real breakpoint info"
@@ -108,8 +108,8 @@
gdb_test "condition 1 k == 1" ""
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*pendfunc1.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline" \
"pending plus condition"
@@ -121,8 +121,8 @@
gdb_test "disable 1" ""
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep n.*PENDING.*pendfunc1.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep n\\(p\\).*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline" \
"pending disabled"
@@ -134,8 +134,8 @@
"Set commands for pending breakpoint"
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep n.*PENDING.*pendfunc1.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep n\\(p\\).*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[\t \]+print k.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline" \
@@ -154,12 +154,12 @@
}
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep n.*PENDING.*pendfunc1.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep n\\(p\\).*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[\t \]+print k.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*pendshr.c:$bp2_loc if x > 3.*" \
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*pendshr.c:$bp2_loc if x > 3.*" \
"multiple pending breakpoints"
@@ -179,13 +179,13 @@
"set ignore count on pending breakpoint 3"
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep n.*PENDING.*pendfunc1.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep n\\(p\\).*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[\t \]+print k.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*pendshr.c:$bp2_loc if x > 3.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*pendshr.c:$bp3_loc.*ignore next 2 hits.*" \
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*pendshr.c:$bp2_loc if x > 3.*
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*pendshr.c:$bp3_loc.*ignore next 2 hits.*" \
"multiple pending breakpoints 2"
#
@@ -253,7 +253,7 @@
rerun_to_main
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$mainline.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*imaginary.*" \
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*imaginary.*" \
"verify pending breakpoint after restart"
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/sepdebug.exp,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -r1.10 -r1.11
--- src/gdb/testsuite/gdb.base/sepdebug.exp 2007/09/21 22:42:52 1.10
+++ src/gdb/testsuite/gdb.base/sepdebug.exp 2007/09/23 07:56:22 1.11
@@ -179,7 +179,7 @@
set bp_location9 [gdb_get_line_number "set breakpoint 9 here"]
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$main_line.*
\[0-9\]+\[\t \]+breakpoint keep y.* in marker2 at .*$srcfile:($bp_location8|$bp_location9).*
\[0-9\]+\[\t \]+breakpoint keep y.* in factorial at .*$srcfile:$bp_location7.*
@@ -298,7 +298,7 @@
#
# check to see what breakpoints are set (temporary this time)
#
-gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
+gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in factorial at .*$srcfile:$bp_location7.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.base/unload.exp,v
retrieving revision 1.12
retrieving revision 1.13
diff -u -r1.12 -r1.13
--- src/gdb/testsuite/gdb.base/unload.exp 2007/09/22 19:33:32 1.12
+++ src/gdb/testsuite/gdb.base/unload.exp 2007/09/23 07:56:22 1.13
@@ -81,8 +81,8 @@
}
gdb_test "info break" \
- "Num Type\[ \]+Disp Enb Address\[ \]+What.*
-\[0-9\]+\[\t \]+breakpoint keep y.*PENDING.*shrfunc1.*" \
+ "Num Type\[ \]+Disp Enb Address\[ \]+What.*
+\[0-9\]+\[\t \]+breakpoint keep y\\(p\\).*PENDING.*shrfunc1.*" \
"single pending breakpoint info"
set unloadshr_line [gdb_get_line_number "unloadshr break" ${libsrcfile}]
===================================================================
RCS file: /cvs/src/src/gdb/testsuite/gdb.cp/ovldbreak.exp,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -r1.6 -r1.7
--- src/gdb/testsuite/gdb.cp/ovldbreak.exp 2007/08/23 18:14:17 1.6
+++ src/gdb/testsuite/gdb.cp/ovldbreak.exp 2007/09/23 07:56:22 1.7
@@ -153,7 +153,7 @@
# Verify the breakpoints.
gdb_test "info break" \
- "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*
+ "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in main at.*$srcfile:49\r
\[\t \]+breakpoint already hit 1 time\r
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(char\\) at.*$srcfile:111\r
@@ -211,7 +211,7 @@
}
gdb_test "info break" \
- "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*
+ "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in main at.*$srcfile:49\r
\[\t \]+breakpoint already hit 1 time\r
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(char\\) at.*$srcfile:111\r
@@ -290,7 +290,7 @@
}
gdb_test "info break" \
- "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*
+ "Num Type\[\t \]+Disp Enb Address\[\t \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(double\\) at.*$srcfile:121\r
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(float\\) at.*$srcfile:120\r
\[0-9\]+\[\t \]+breakpoint keep y\[\t \]+$hex\[\t \]+in foo::overload1arg\\(unsigned long\\) at.*$srcfile:119\r
2007-09-24 Vladimir Prus <vladimir@codesourcery.com>
* breakpoint.c (remove_sal): New.
(expand_line_sal_maybe): New.
(create_breakpoints): Call expand_line_sal_maybe.
(clear_command): Add comment.
(breakpoint_re_set_one): Call expand_line_sal_maybe.
* linespec.c (decode_indirect): Set explicit_pc to 1.
(decode_all_digits): Set explicit_line to 1.
(append_expanded_sal): New.
(expand_line_sal): New.
* linespec.h (expand_line_sal): Declare.
* symtab.c (init_sal): Initialize explicit_pc
and explicit_line.
* symtab.h (struct symtab_and_line): New fields
explicit_pc and explicit_line.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.268
retrieving revision 1.269
diff -u -r1.268 -r1.269
--- src/gdb/breakpoint.c 2007/09/23 07:56:22 1.268
+++ src/gdb/breakpoint.c 2007/09/24 07:40:32 1.269
@@ -5184,6 +5184,128 @@
mention (b);
}
+/* Remove element at INDEX_TO_REMOVE from SAL, shifting other
+ elements to fill the void space. */
+static void remove_sal (struct symtabs_and_lines *sal, int index_to_remove)
+{
+ int i = index_to_remove+1;
+ int last_index = sal->nelts-1;
+
+ for (;i <= last_index; ++i)
+ sal->sals[i-1] = sal->sals[i];
+
+ --(sal->nelts);
+}
+
+/* If appropriate, obtains all sals that correspond
+ to the same file and line as SAL. This is done
+ only if SAL does not have explicit PC and has
+ line and file information. If we got just a single
+ expanded sal, return the original.
+
+ Otherwise, if SAL.explicit_line is not set, filter out
+ all sals for which the name of enclosing function
+ is different from SAL. This makes sure that if we have
+ breakpoint originally set in template instantiation, say
+ foo<int>(), we won't expand SAL to locations at the same
+ line in all existing instantiations of 'foo'.
+
+*/
+struct symtabs_and_lines
+expand_line_sal_maybe (struct symtab_and_line sal)
+{
+ struct symtabs_and_lines expanded;
+ CORE_ADDR original_pc = sal.pc;
+ char *original_function = NULL;
+ int found;
+ int i;
+
+ /* If we have explicit pc, don't expand.
+ If we have no line number, we can't expand. */
+ if (sal.explicit_pc || sal.line == 0 || sal.symtab == NULL)
+ {
+ expanded.nelts = 1;
+ expanded.sals = xmalloc (sizeof (struct symtab_and_line));
+ expanded.sals[0] = sal;
+ return expanded;
+ }
+
+ sal.pc = 0;
+ find_pc_partial_function (original_pc, &original_function, NULL, NULL);
+
+ expanded = expand_line_sal (sal);
+ if (expanded.nelts == 1)
+ {
+ /* We had one sal, we got one sal. Without futher
+ processing, just return the original sal. */
+ xfree (expanded.sals);
+ expanded.nelts = 1;
+ expanded.sals = xmalloc (sizeof (struct symtab_and_line));
+ sal.pc = original_pc;
+ expanded.sals[0] = sal;
+ return expanded;
+ }
+
+ if (!sal.explicit_line)
+ {
+ CORE_ADDR func_addr, func_end;
+ for (i = 0; i < expanded.nelts; ++i)
+ {
+ CORE_ADDR pc = expanded.sals[i].pc;
+ char *this_function;
+ if (find_pc_partial_function (pc, &this_function,
+ &func_addr, &func_end))
+ {
+ if (this_function &&
+ strcmp (this_function, original_function) != 0)
+ {
+ remove_sal (&expanded, i);
+ --i;
+ }
+ else if (func_addr == pc)
+ {
+ /* We're at beginning of a function, and should
+ skip prologue. */
+ struct symbol *sym = find_pc_function (pc);
+ if (sym)
+ expanded.sals[i] = find_function_start_sal (sym, 1);
+ else
+ expanded.sals[i].pc
+ = gdbarch_skip_prologue (current_gdbarch, pc);
+ }
+ }
+ }
+ }
+
+
+ if (expanded.nelts <= 1)
+ {
+ /* This is un ugly workaround. If we get zero
+ expanded sals then something is really wrong.
+ Fix that by returnign the original sal. */
+ xfree (expanded.sals);
+ expanded.nelts = 1;
+ expanded.sals = xmalloc (sizeof (struct symtab_and_line));
+ sal.pc = original_pc;
+ expanded.sals[0] = sal;
+ return expanded;
+ }
+
+ if (original_pc)
+ {
+ found = 0;
+ for (i = 0; i < expanded.nelts; ++i)
+ if (expanded.sals[i].pc == original_pc)
+ {
+ found = 1;
+ break;
+ }
+ gdb_assert (found);
+ }
+
+ return expanded;
+}
+
/* Add SALS.nelts breakpoints to the breakpoint table. For each
SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i]
value. COND_STRING, if not NULL, specified the condition to be
@@ -5214,11 +5336,10 @@
int i;
for (i = 0; i < sals.nelts; ++i)
{
- struct symtabs_and_lines sals2;
- sals2.sals = sals.sals + i;
- sals2.nelts = 1;
+ struct symtabs_and_lines expanded =
+ expand_line_sal_maybe (sals.sals[i]);
- create_breakpoint (sals2, addr_string[i],
+ create_breakpoint (expanded, addr_string[i],
cond_string, type, disposition,
thread, ignore_count, from_tty,
pending_bp);
@@ -6889,6 +7010,23 @@
default_match = 1;
}
+ /* We don't call resolve_sal_pc here. That's not
+ as bad as it seems, because all existing breakpoints
+ typically have both file/line and pc set. So, if
+ clear is given file/line, we can match this to existing
+ breakpoint without obtaining pc at all.
+
+ We only support clearing given the address explicitly
+ present in breakpoint table. Say, we've set breakpoint
+ at file:line. There were several PC values for that file:line,
+ due to optimization, all in one block.
+ We've picked one PC value. If "clear" is issued with another
+ PC corresponding to the same file:line, the breakpoint won't
+ be cleared. We probably can still clear the breakpoint, but
+ since the other PC value is never presented to user, user
+ can only find it by guessing, and it does not seem important
+ to support that. */
+
/* For each line spec given, delete bps which correspond
to it. Do it in two passes, solely to preserve the current
behavior that from_tty is forced true if we delete more than
@@ -7404,8 +7542,12 @@
}
}
- if (existing_locations)
- free_bp_location (existing_locations);
+ while (existing_locations)
+ {
+ struct bp_location *next = existing_locations->next;
+ free_bp_location (existing_locations);
+ existing_locations = next;
+ }
}
@@ -7423,6 +7565,7 @@
int not_found = 0;
int *not_found_ptr = &not_found;
struct symtabs_and_lines sals = {};
+ struct symtabs_and_lines expanded;
char *s;
enum enable_state save_enable;
struct gdb_exception e;
@@ -7497,8 +7640,8 @@
b->thread = thread;
b->condition_not_parsed = 0;
}
-
- update_breakpoint_locations (b, sals);
+ expanded = expand_line_sal_maybe (sals.sals[0]);
+ update_breakpoint_locations (b, expanded);
/* Now that this is re-enabled, check_duplicates
can be used. */
===================================================================
RCS file: /cvs/src/src/gdb/linespec.c,v
retrieving revision 1.72
retrieving revision 1.73
diff -u -r1.72 -r1.73
--- src/gdb/linespec.c 2007/08/23 18:08:35 1.72
+++ src/gdb/linespec.c 2007/09/24 07:40:32 1.73
@@ -963,6 +963,7 @@
values.sals[0] = find_pc_line (pc, 0);
values.sals[0].pc = pc;
values.sals[0].section = find_pc_overlay (pc);
+ values.sals[0].explicit_pc = 1;
return values;
}
@@ -1633,6 +1634,7 @@
values.nelts = 1;
if (need_canonical)
build_canonical_line_spec (values.sals, NULL, canonical);
+ values.sals[0].explicit_line = 1;
return values;
}
===================================================================
RCS file: /cvs/src/src/gdb/symtab.c,v
retrieving revision 1.164
retrieving revision 1.165
diff -u -r1.164 -r1.165
--- src/gdb/symtab.c 2007/08/29 18:34:46 1.164
+++ src/gdb/symtab.c 2007/09/24 07:40:32 1.165
@@ -691,6 +691,8 @@
sal->line = 0;
sal->pc = 0;
sal->end = 0;
+ sal->explicit_pc = 0;
+ sal->explicit_line = 0;
}
@@ -4172,6 +4174,166 @@
set_main_name (NULL);
}
+/* Helper to expand_line_sal below. Appends new sal to SAL,
+ initializing it from SYMTAB, LINENO and PC. */
+static void
+append_expanded_sal (struct symtabs_and_lines *sal,
+ struct symtab *symtab,
+ int lineno, CORE_ADDR pc)
+{
+ CORE_ADDR func_addr, func_end;
+
+ sal->sals = xrealloc (sal->sals,
+ sizeof (sal->sals[0])
+ * (sal->nelts + 1));
+ init_sal (sal->sals + sal->nelts);
+ sal->sals[sal->nelts].symtab = symtab;
+ sal->sals[sal->nelts].section = NULL;
+ sal->sals[sal->nelts].end = 0;
+ sal->sals[sal->nelts].line = lineno;
+ sal->sals[sal->nelts].pc = pc;
+ ++sal->nelts;
+}
+
+/* Compute a set of all sals in
+ the entire program that correspond to same file
+ and line as SAL and return those. If there
+ are several sals that belong to the same block,
+ only one sal for the block is included in results. */
+
+struct symtabs_and_lines
+expand_line_sal (struct symtab_and_line sal)
+{
+ struct symtabs_and_lines ret, this_line;
+ int i, j;
+ struct objfile *objfile;
+ struct partial_symtab *psymtab;
+ struct symtab *symtab;
+ int lineno;
+ int deleted = 0;
+ struct block **blocks = NULL;
+ int *filter;
+
+ ret.nelts = 0;
+ ret.sals = NULL;
+
+ if (sal.symtab == NULL || sal.line == 0 || sal.pc != 0)
+ {
+ ret.sals = xmalloc (sizeof (struct symtab_and_line));
+ ret.sals[0] = sal;
+ ret.nelts = 1;
+ return ret;
+ }
+ else
+ {
+ struct linetable_entry *best_item = 0;
+ struct symtab *best_symtab = 0;
+ int exact = 0;
+
+ lineno = sal.line;
+
+ /* We meed to find all symtabs for a file which name
+ is described by sal. We cannot just directly
+ iterate over symtabs, since a symtab might not be
+ yet created. We also cannot iterate over psymtabs,
+ calling PSYMTAB_TO_SYMTAB and working on that symtab,
+ since PSYMTAB_TO_SYMTAB will return NULL for psymtab
+ corresponding to an included file. Therefore, we do
+ first pass over psymtabs, reading in those with
+ the right name. Then, we iterate over symtabs, knowing
+ that all symtabs we're interested in are loaded. */
+
+ ALL_PSYMTABS (objfile, psymtab)
+ {
+ if (strcmp (sal.symtab->filename,
+ psymtab->filename) == 0)
+ PSYMTAB_TO_SYMTAB (psymtab);
+ }
+
+
+ /* For each symtab, we add all pcs to ret.sals. I'm actually
+ not sure what to do if we have exact match in one symtab,
+ and non-exact match on another symtab.
+ */
+ ALL_SYMTABS (objfile, symtab)
+ {
+ if (strcmp (sal.symtab->filename,
+ symtab->filename) == 0)
+ {
+ struct linetable *l;
+ int len;
+ l = LINETABLE (symtab);
+ if (!l)
+ continue;
+ len = l->nitems;
+
+ for (j = 0; j < len; j++)
+ {
+ struct linetable_entry *item = &(l->item[j]);
+
+ if (item->line == lineno)
+ {
+ exact = 1;
+ append_expanded_sal (&ret, symtab, lineno, item->pc);
+ }
+ else if (!exact && item->line > lineno
+ && (best_item == NULL || item->line < best_item->line))
+
+ {
+ best_item = item;
+ best_symtab = symtab;
+ }
+ }
+ }
+ }
+ if (!exact && best_item)
+ append_expanded_sal (&ret, best_symtab, lineno, best_item->pc);
+ }
+
+ /* For optimized code, compiler can scatter one source line accross
+ disjoint ranges of PC values, even when no duplicate functions
+ or inline functions are involved. For example, 'for (;;)' inside
+ non-template non-inline non-ctor-or-dtor function can result
+ in two PC ranges. In this case, we don't want to set breakpoint
+ on first PC of each range. To filter such cases, we use containing
+ blocks -- for each PC found above we see if there are other PCs
+ that are in the same block. If yes, the other PCs are filtered out. */
+
+ filter = xmalloc (ret.nelts * sizeof (int));
+ blocks = xmalloc (ret.nelts * sizeof (struct block *));
+ for (i = 0; i < ret.nelts; ++i)
+ {
+ filter[i] = 1;
+ blocks[i] = block_for_pc (ret.sals[i].pc);
+ }
+
+ for (i = 0; i < ret.nelts; ++i)
+ if (blocks[i] != NULL)
+ for (j = i+1; j < ret.nelts; ++j)
+ if (blocks[j] == blocks[i])
+ {
+ filter[j] = 0;
+ ++deleted;
+ break;
+ }
+
+ {
+ struct symtab_and_line *final =
+ xmalloc (sizeof (struct symtab_and_line) * (ret.nelts-deleted));
+
+ for (i = 0, j = 0; i < ret.nelts; ++i)
+ if (filter[i])
+ final[j++] = ret.sals[i];
+
+ ret.nelts -= deleted;
+ xfree (ret.sals);
+ ret.sals = final;
+ }
+
+ return ret;
+}
+
+
void
_initialize_symtab (void)
{
===================================================================
RCS file: /cvs/src/src/gdb/symtab.h,v
retrieving revision 1.106
retrieving revision 1.107
diff -u -r1.106 -r1.107
--- src/gdb/symtab.h 2007/08/23 18:08:45 1.106
+++ src/gdb/symtab.h 2007/09/24 07:40:32 1.107
@@ -1213,6 +1213,8 @@
CORE_ADDR pc;
CORE_ADDR end;
+ int explicit_pc;
+ int explicit_line;
};
extern void init_sal (struct symtab_and_line *sal);
@@ -1404,5 +1406,7 @@
const domain_enum domain,
struct symtab **symtab);
+extern struct symtabs_and_lines
+expand_line_sal (struct symtab_and_line sal);
#endif /* !defined(SYMTAB_H) */
2007-09-24 Vladimir Prus <vladimir@codesourcery.com>
* gdb.cp/mb-ctor.cc: New.
* gdb.cp/mb-ctor.exp: New.
* gdb.cp/mb-templates.cc: New.
* gdb.cp/mb-templates.exp: New.
/cvs/src/src/gdb/testsuite/gdb.cp/mb-ctor.cc,v --> standard output
revision 1.1
--- src/gdb/testsuite/gdb.cp/mb-ctor.cc
+++ - 2007-11-01 22:04:53.928594000 +0000
@@ -0,0 +1,58 @@
+
+#include <stdio.h>
+
+class Base
+{
+public:
+ Base(int k);
+ ~Base();
+ virtual void foo() {}
+private:
+ int k;
+};
+
+Base::Base(int k)
+{
+ this->k = k;
+}
+
+Base::~Base()
+{
+ printf("~Base\n");
+}
+
+class Derived : public virtual Base
+{
+public:
+ Derived(int i);
+ ~Derived();
+private:
+ int i;
+};
+
+Derived::Derived(int i) : Base(i)
+{
+ this->i = i;
+}
+
+Derived::~Derived()
+{
+ printf("~Derived\n");
+}
+
+class DeeplyDerived : public Derived
+{
+public:
+ DeeplyDerived(int i) : Base(i), Derived(i) {}
+};
+
+int main()
+{
+ /* Invokes the Derived ctor that constructs both
+ Derived and Base. */
+ Derived d(7);
+ /* Invokes the Derived ctor that constructs only
+ Derived. Base is constructed separately by
+ DeeplyDerived's ctor. */
+ DeeplyDerived dd(15);
+}
/cvs/src/src/gdb/testsuite/gdb.cp/mb-ctor.exp,v --> standard output
revision 1.1
--- src/gdb/testsuite/gdb.cp/mb-ctor.exp
+++ - 2007-11-01 22:04:54.490054000 +0000
@@ -0,0 +1,86 @@
+# Copyright 2007
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Test that breakpoints on C++ constructors work, despite the
+# fact that gcc generates several versions of constructor function.
+
+if $tracelevel then {
+ strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+set testfile "mb-ctor"
+set srcfile ${testfile}.cc
+set binfile ${objdir}/${subdir}/${testfile}
+
+if [get_compiler_info ${binfile} "c++"] {
+ return -1
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
+ untested mb-ctor.exp
+ return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+# Set a breakpoint with multiple locations
+# and a condition.
+
+gdb_test "break 'Derived::Derived(int)'" \
+ "Breakpoint.*at.* file .*$srcfile, line.*\\(2 locations\\).*" \
+ "set-breakpoint at ctor"
+
+gdb_test "break 'Derived::~Derived()'" \
+ "Breakpoint.*at.* file .*$srcfile, line.*\\(2 locations\\).*" \
+ "set-breakpoint at ctor"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Breakpoint \[0-9\]+,.*Derived.*i=7.*$gdb_prompt $" {
+ pass "run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "run to breakpoint"
+ }
+ timeout {
+ fail "run to breakpoint (timeout)"
+ }
+}
+
+gdb_test "continue" \
+ ".*Breakpoint.*Derived.*i=15.*" \
+ "run to breakpoint 2"
+
+gdb_test "continue" \
+ ".*Breakpoint.*~Derived.*" \
+ "run to breakpoint 3"
+
+gdb_test "continue" \
+ ".*Breakpoint.*~Derived.*" \
+ "run to breakpoint 4"
+
+gdb_test "continue" \
+ ".*exited normally.*" \
+ "run to exit"
+
+
+
/cvs/src/src/gdb/testsuite/gdb.cp/mb-templates.cc,v --> standard output
revision 1.1
--- src/gdb/testsuite/gdb.cp/mb-templates.cc
+++ - 2007-11-01 22:04:55.064722000 +0000
@@ -0,0 +1,19 @@
+
+#include <iostream>
+using namespace std;
+
+template<class T>
+void foo(T i)
+{
+ std::cout << "hi\n"; // set breakpoint here
+}
+
+int main()
+{
+ foo<int>(0);
+ foo<double>(0);
+ foo<int>(1);
+ foo<double>(1);
+ foo<int>(2);
+ foo<double>(2);
+}
/cvs/src/src/gdb/testsuite/gdb.cp/mb-templates.exp,v --> standard output
revision 1.1
--- src/gdb/testsuite/gdb.cp/mb-templates.exp
+++ - 2007-11-01 22:04:55.647560000 +0000
@@ -0,0 +1,161 @@
+# Copyright 2007
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# This test verifies that setting breakpoint on line in template
+# function will fire in all instantiations of that template.
+
+if $tracelevel then {
+ strace $tracelevel
+}
+
+set prms_id 0
+set bug_id 0
+
+set testfile "mb-templates"
+set srcfile ${testfile}.cc
+set binfile ${objdir}/${subdir}/${testfile}
+
+if [get_compiler_info ${binfile} "c++"] {
+ return -1
+}
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
+ untested mb-templates.exp
+ return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+set bp_location [gdb_get_line_number "set breakpoint here"]
+
+# Set a breakpoint with multiple locations
+# and a condition.
+
+gdb_test "break $srcfile:$bp_location if i==1" \
+ "Breakpoint.*at.* file .*$srcfile, line.*\\(2 locations\\).*" \
+ "initial condition: set breakpoint"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Breakpoint \[0-9\]+,.*foo<int> \\(i=1\\).*$gdb_prompt $" {
+ pass "initial condition: run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "initial condition: run to breakpoint"
+ }
+ timeout {
+ fail "initial condition: run to breakpoint (timeout)"
+ }
+}
+
+gdb_test "continue" \
+ ".*Breakpoint.*foo<double> \\(i=1\\).*" \
+ "initial condition: run to breakpoint 2"
+
+# Set breakpoint with multiple locations.
+# Separately set the condition.
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_test "break $srcfile:$bp_location" \
+ "Breakpoint.*at.* file .*$srcfile, line.*\\(2 locations\\).*" \
+ "separate condition: set breakpoint"
+
+gdb_test "condition 1 i==1" "" \
+ "separate condition: set condition"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Breakpoint \[0-9\]+,.*foo<int> \\(i=1\\).*$gdb_prompt $" {
+ pass "separate condition: run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "separate condition: run to breakpoint"
+ }
+ timeout {
+ fail "separate condition: run to breakpoint (timeout)"
+ }
+}
+
+gdb_test "continue" \
+ ".*Breakpoint.*foo<double> \\(i=1\\).*" \
+ "separate condition: run to breakpoint 2"
+
+# Try disabling a single location. We also test
+# that at least in simple cases, the enable/disable
+# state of locations surive "run".
+gdb_test "disable 1.1" "" "disabling location: disable"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Breakpoint \[0-9\]+,.*foo<double> \\(i=1\\).*$gdb_prompt $" {
+ pass "disabling location: run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "disabling location: run to breakpoint"
+ }
+ timeout {
+ fail "disabling location: run to breakpoint (timeout)"
+ }
+}
+
+# Try disabling entire breakpoint
+gdb_test "enable 1.1" "" "disabling location: enable"
+
+
+gdb_test "disable 1" "" "disable breakpoint: disable"
+
+gdb_run_cmd
+gdb_expect {
+ -re "Program exited normally.*$gdb_prompt $" {
+ pass "disable breakpoint: run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "disable breakpoint: run to breakpoint"
+ }
+ timeout {
+ fail "disable breakpoint: run to breakpoint (timeout)"
+ }
+}
+
+# Make sure breakpoint can be set on a specific instantion.
+delete_breakpoints
+gdb_test "break 'void foo<int>(int)'" ".*" \
+ "instantiation: set breakpoint"
+
+
+gdb_run_cmd
+gdb_expect {
+ -re ".*Breakpoint \[0-9\]+,.*foo<int> \\(i=0\\).*$gdb_prompt $" {
+ pass "instantiation: run to breakpoint"
+ }
+ -re "$gdb_prompt $" {
+ fail "instantiation: run to breakpoint"
+ }
+ timeout {
+ fail "instantiation: run to breakpoint (timeout)"
+ }
+}
+
+gdb_test "continue" \
+ ".*Breakpoint.*foo<int> \\(i=1\\).*" \
+ "instantiation: run to breakpoint 2"
+
2007-09-26 Vladimir Prus <vladimir@codesourcery.com>
* breakpoint.c (create_breakpoint): Set
condition on each location, not on the first
location of breakpoint.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.269
retrieving revision 1.270
diff -u -r1.269 -r1.270
--- src/gdb/breakpoint.c 2007/09/24 07:40:32 1.269
+++ src/gdb/breakpoint.c 2007/09/26 18:44:55 1.270
@@ -5163,7 +5163,7 @@
if (b->cond_string)
{
char *arg = b->cond_string;
- b->loc->cond = parse_exp_1 (&arg, block_for_pc (b->loc->address), 0);
+ loc->cond = parse_exp_1 (&arg, block_for_pc (loc->address), 0);
if (*arg)
{
if (pending_bp)
2007-09-28 Vladimir Prus <vladimir@codesourcery.com>
* NEW: Mention pending breakpoint changes and
support for breakpoints at multiple locations.
===================================================================
RCS file: /cvs/src/src/gdb/NEWS,v
retrieving revision 1.239
retrieving revision 1.240
diff -u -r1.239 -r1.240
--- src/gdb/NEWS 2007/09/17 19:30:05 1.239
+++ src/gdb/NEWS 2007/09/28 06:24:20 1.240
@@ -3,6 +3,13 @@
*** Changes since GDB 6.7
+* Pending breakpoints no longer change their number when their address
+ is resolved.
+
+* GDB now supports breakpoints with multiple locations,
+ including breakpoints on C++ constructors, inside C++ templates,
+ and in inlined functions.
+
*** Changes in GDB 6.6
* Resolved 101 resource leaks, null pointer dereferences, etc. in gdb,
2007-09-28 Vladimir Prus <vladimir@codesourcery.com>
* gdb.texinfo (Setting Breakpoints): Revise
documentation for pending breakpoints. Document
breakpoints with multiple locations.
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.432
retrieving revision 1.433
diff -u -r1.432 -r1.433
--- src/gdb/doc/gdb.texinfo 2007/09/16 14:59:30 1.432
+++ src/gdb/doc/gdb.texinfo 2007/09/28 06:24:20 1.433
@@ -2991,11 +2991,17 @@
Whether the breakpoint is marked to be disabled or deleted when hit.
@item Enabled or Disabled
Enabled breakpoints are marked with @samp{y}. @samp{n} marks breakpoints
-that are not enabled.
+that are not enabled. An optional @samp{(p)} suffix marks pending
+breakpoints --- breakpoints for which address is either not yet
+resolved, pending load of a shared library, or for which address was
+in a shared library that was since unloaded. Such breakpoint won't
+fire until a shared library that has the symbol or line referred by
+breakpoint is loaded. See below for details.
@item Address
-Where the breakpoint is in your program, as a memory address. If the
-breakpoint is pending (see below for details) on a future load of a shared library, the address
-will be listed as @samp{<PENDING>}.
+Where the breakpoint is in your program, as a memory address. For a
+pending breakpoint whose address is not yet known, this field will
+contain @samp{<PENDING>}. A breakpoint with several locations will
+have @samp{<MULTIPLE>} in this field --- see below for details.
@item What
Where the breakpoint is in the source for your program, as a file and
line number. For a pending breakpoint, the original string passed to
@@ -3032,23 +3038,83 @@
the breakpoints are conditional, this is even useful
(@pxref{Conditions, ,Break Conditions}).
-@cindex pending breakpoints
-If a specified breakpoint location cannot be found, it may be due to the fact
-that the location is in a shared library that is yet to be loaded. In such
-a case, you may want @value{GDBN} to create a special breakpoint (known as
-a @dfn{pending breakpoint}) that
-attempts to resolve itself in the future when an appropriate shared library
-gets loaded.
-
-Pending breakpoints are useful to set at the start of your
-@value{GDBN} session for locations that you know will be dynamically loaded
-later by the program being debugged. When shared libraries are loaded,
-a check is made to see if the load resolves any pending breakpoint locations.
-If a pending breakpoint location gets resolved,
-a regular breakpoint is created and the original pending breakpoint is removed.
+It is possible that a breakpoint correspond to several locations
+in your program. Examples of this situation are:
+
+@itemize @bullet
+
+@item
+For a C@t{++} constructor, the @value{NGCC} compiler generates several
+instances of the function body, used in different cases.
-@value{GDBN} provides some additional commands for controlling pending
-breakpoint support:
+@item
+For a C@t{++} template function, a given line in the function can
+correspond to any number of instantiations.
+
+@item
+For an inlined function, a given source line can correspond to
+several places where that function is inlined.
+
+@end itemize
+
+In all those cases, @value{GDBN} will insert a breakpoint at all
+the relevant locations.
+
+A breakpoint with multiple locations is displayed in the
+breakpoint table using several rows --- one header row, followed
+by one row for each breakpoint location. The header row
+has @samp{<MULTIPLE>} in the address column. The rows for
+individual locations contain the actual addresses for locations,
+and say what functions those locations are in. The number
+column for a location has number in the format
+@var{breakpoint-number}.@var{location-number}.
+
+For example:
+@smallexample
+Num Type Disp Enb Address What
+1 breakpoint keep y <MULTIPLE>
+ stop only if i==1
+ breakpoint already hit 1 time
+1.1 y 0x080486a2 in void foo<int>() at t.cc:8
+1.2 y 0x080486ca in void foo<double>() at t.cc:8
+@end smallexample
+
+Each location can be individually enabled or disabled by passing
+@var{breakpoint-number}.@var{location-number} as argument to the
+@code{enable} and @code{disable} commands.
+
+@cindex pending breakpoints
+It's quite common to have a breakpoint inside a shared library.
+The shared library may be loaded and unloaded explicitly,
+and possibly repeatedly, as the program is executed. To support
+this use case, @value{GDBN} updates breakpoint locations whenever
+any shared library is loaded or unloaded. Typically, you would
+set a breakpoint in a shared library at the beginning of your
+debugging session, when the library is not loaded, and when the
+symbols from the library are not available. When you try to set
+breakpoint, @value{GDBN} will ask you if you want to set
+a so called @dfn{pending breakpoint} --- breakpoint whose address
+is not yet resolved.
+
+After the program is run, whenever a new shared library is loaded,
+@value{GDBN} reevaluates all the breakpoints. When a newly loaded
+shared library contains the symbol or line referred to by some
+pending breakpoint, that breakpoint is resolved and becomes an
+ordinary breakpoint. When a library is unloaded, all breakpoints
+that refer to its symbols or source lines become pending again.
+
+This logic works for breakpoints with multiple locations, too. For
+example, if you have a breakpoint in a C@t{++} template function, and
+a newly loaded shared library has an instantiation of that template,
+a new location is added to the list of locations for the breakpoint.
+
+Except for having unresolved address, pending breakpoints do not
+differ from regular breakpoints. You can set conditions or commands,
+enable and disable them and perform other breakpoint operations.
+
+@value{GDBN} provides some additional commands for controlling what
+happens when the @samp{break} command cannot resolve breakpoint
+address specification to an address:
@kindex set breakpoint pending
@kindex show breakpoint pending
@@ -3070,19 +3136,9 @@
Show the current behavior setting for creating pending breakpoints.
@end table
-@cindex operations allowed on pending breakpoints
-Normal breakpoint operations apply to pending breakpoints as well. You may
-specify a condition for a pending breakpoint and/or commands to run when the
-breakpoint is reached. You can also enable or disable
-the pending breakpoint. When you specify a condition for a pending breakpoint,
-the parsing of the condition will be deferred until the point where the
-pending breakpoint location is resolved. Disabling a pending breakpoint
-tells @value{GDBN} to not attempt to resolve the breakpoint on any subsequent
-shared library load. When a pending breakpoint is re-enabled,
-@value{GDBN} checks to see if the location is already resolved.
-This is done because any number of shared library loads could have
-occurred since the time the breakpoint was disabled and one or more
-of these loads could resolve the location.
+The settings above only affect the @code{break} command and its
+variants. Once breakpoint is set, it will be automatically updated
+as shared libraries are loaded and unloaded.
@cindex automatic hardware breakpoints
For some targets, @value{GDBN} can automatically decide if hardware or
2007-10-08 Pierre Muller <muller@ics.u-strasbg.fr>
* breakpoint.c (print_one_breakpoint_location): ARI fix:
Replace asprintf by xstrprintf.
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.271
retrieving revision 1.272
diff -u -r1.271 -r1.272
--- src/gdb/breakpoint.c 2007/10/01 00:17:57 1.271
+++ src/gdb/breakpoint.c 2007/10/08 15:23:42 1.272
@@ -3526,7 +3526,7 @@
if (part_of_multiple)
{
char *formatted;
- asprintf (&formatted, "%d.%d", b->number, loc_number);
+ formatted = xstrprintf ("%d.%d", b->number, loc_number);
ui_out_field_string (uiout, "number", formatted);
xfree (formatted);
}
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