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gdb/gdb-6.8-inlining-addon.patch

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infcall.c <unwind_on_signal_p>:
Revert the change of: gdb-6.8-inlining.patch
causing: FAIL: gdb.base/unwindonsignal.exp: unwindonsignal, stack unwound
resume() -> target_resume() move of clear_inline_frame_state() is for:
gdb.mi/mi-nsmoribund.exp
Index: gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-bt.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/testsuite/gdb.opt/inline-bt.c 2009-06-28 02:20:24.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-bt.c 2009-09-17 12:49:01.000000000 +0200
@@ -13,10 +13,16 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-int x, y;
+/* VOLATILE forces all the inlining to happen as otherwise the whole program
+ gets optimized by CSE to just simple assignments of the results. */
+volatile int x, y;
volatile int result;
-void bar(void);
+inline void bar(void)
+{
+ x += y; /* set breakpoint 1 here */
+}
+
inline int func1(void)
{
Index: gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-cmds.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/testsuite/gdb.opt/inline-cmds.c 2009-06-28 02:20:24.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-cmds.c 2009-09-17 12:49:01.000000000 +0200
@@ -13,13 +13,19 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-int x, y;
+/* VOLATILE forces all the inlining to happen as otherwise the whole program
+ gets optimized by CSE to just simple assignments of the results. */
+volatile int x, y;
volatile int result;
-void bar(void);
void marker(void);
void noinline(void);
+inline void bar(void)
+{
+ x += y; /* set breakpoint 1 here */
+}
+
inline int func1(void)
{
bar ();
Index: gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-cmds.exp
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/testsuite/gdb.opt/inline-cmds.exp 2009-06-28 02:20:24.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-cmds.exp 2009-09-17 12:49:01.000000000 +0200
@@ -230,7 +230,7 @@ set line3 [gdb_get_line_number "set brea
gdb_breakpoint $line3
gdb_continue_to_breakpoint "consecutive func1"
-gdb_test "next" ".*func1 .*first call.*" "next to first func1"
+gdb_test "next" "func1 .*first call.*" "next to first func1"
set msg "next to second func1"
gdb_test_multiple "next" $msg {
-re ".*func1 .*second call.*$gdb_prompt $" {
@@ -253,16 +253,16 @@ set line4 [gdb_get_line_number "set brea
gdb_breakpoint $line4
gdb_continue_to_breakpoint "func1 then func3"
-gdb_test "next" ".*func1 \\\(\\\);" "next to func1 before func3"
-gdb_test "next" ".*func3 \\\(\\\);" "next to func3"
+gdb_test "next" "func1 \\\(\\\);" "next to func1 before func3"
+gdb_test "next" "func3 \\\(\\\);" "next to func3"
# Test finishing out of one thing and into another.
set line5 [gdb_get_line_number "set breakpoint 5 here"]
gdb_breakpoint $line5
gdb_continue_to_breakpoint "finish into func1"
-gdb_test "next" ".*marker \\\(\\\);" "next to finish marker"
-gdb_test "step" ".*set breakpoint 2 here.*" "step into finish marker"
+gdb_test "next" "marker \\\(\\\);" "next to finish marker"
+gdb_test "step" "set breakpoint 2 here.*" "step into finish marker"
gdb_test "finish" "func1 \\\(\\\);" "finish from marker to func1"
gdb_test "step" "bar \\\(\\\);" "step into func1 for finish"
@@ -297,12 +297,12 @@ gdb_test "step" "noinline \\\(\\\) at .*
gdb_test "bt" "#0 noinline.*#1 .*outer_inline1.*#2 .*outer_inline2.*#3 main.*" "backtrace at noinline from outer_inline1"
gdb_test "step" "inlined_fn \\\(\\\) at .*" "enter inlined_fn from noinline"
gdb_test "bt" "#0 inlined_fn.*#1 noinline.*#2 .*outer_inline1.*#3 .*outer_inline2.*#4 main.*" "backtrace at inlined_fn from noinline"
-gdb_test "info frame" ".*inlined into frame.*" "inlined_fn from noinline inlined"
-gdb_test "up" "#1 noinline.*" "up to noinline"
-gdb_test "info frame" ".*\n called by frame.*" "noinline from outer_inline1 not inlined"
-gdb_test "up" "#2 .*outer_inline1.*" "up to outer_inline1"
-gdb_test "info frame" ".*inlined into frame.*" "outer_inline1 inlined"
-gdb_test "up" "#3 .*outer_inline2.*" "up to outer_inline2"
-gdb_test "info frame" ".*inlined into frame.*" "outer_inline2 inlined"
-gdb_test "up" "#4 main.*" "up from outer_inline2"
-gdb_test "info frame" ".*\n caller of frame.*" "main not inlined"
+gdb_test "info frame" "inlined into frame.*" "inlined_fn from noinline inlined"
+gdb_test "fini" "" "up to noinline"
+gdb_test "info frame" "\n called by frame.*" "noinline from outer_inline1 not inlined"
+gdb_test "fini" "" "up to outer_inline1"
+gdb_test "info frame" "inlined into frame.*" "outer_inline1 inlined"
+gdb_test "fini" "" "up to outer_inline2"
+gdb_test "info frame" "inlined into frame.*" "outer_inline2 inlined"
+gdb_test "fini" "" "up from outer_inline2"
+gdb_test "info frame" " in main \[^\n\]*\n source language.*" "main not inlined"
Index: gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-locals.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/testsuite/gdb.opt/inline-locals.c 2009-06-28 02:20:24.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-locals.c 2009-09-17 12:49:01.000000000 +0200
@@ -13,11 +13,16 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-int x, y;
+/* VOLATILE forces all the inlining to happen as otherwise the whole program
+ gets optimized by CSE to just simple assignments of the results. */
+volatile int x, y;
volatile int result;
volatile int *array_p;
-void bar(void);
+inline void bar(void)
+{
+ x += y; /* set breakpoint 1 here */
+}
inline int func1(int arg1)
{
Index: gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-locals.exp
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/testsuite/gdb.opt/inline-locals.exp 2009-06-30 17:50:27.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-locals.exp 2009-09-17 12:49:01.000000000 +0200
@@ -77,6 +77,9 @@ if { ! $no_frames } {
# Make sure that locals on the stack are found. This is an array to
# prevent it from living in a register.
+if [test_compiler_info "gcc-4-3-*"] {
+ setup_kfail *-*-* "gcc/debug.optimization"
+}
gdb_test "print array\[0\]" "\\\$$decimal = 0" "print local (2)"
if { ! $no_frames } {
@@ -115,4 +118,7 @@ if { ! $no_frames } {
gdb_test "info locals" ".*arg2 = 184.*" "info locals above bar (3b)"
}
+if [test_compiler_info "gcc-4-3-*"] {
+ setup_kfail *-*-* "gcc/debug.optimization"
+}
gdb_test "print array\[0\]" "\\\$$decimal = 184" "print local (3)"
Index: gdb-6.8.91.20090917/gdb/frame.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/frame.c 2009-09-17 12:48:49.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/frame.c 2009-09-17 12:49:01.000000000 +0200
@@ -310,7 +310,7 @@ fprint_frame (struct ui_file *file, stru
static struct frame_info *
skip_inlined_frames (struct frame_info *frame)
{
- while (get_frame_type (frame) == INLINE_FRAME)
+ while (frame && get_frame_type (frame) == INLINE_FRAME)
frame = get_prev_frame (frame);
return frame;
@@ -1778,6 +1778,7 @@ get_frame_address_in_block (struct frame
{
/* A draft address. */
CORE_ADDR pc = get_frame_pc (this_frame);
+ struct thread_info *tp = inferior_thread ();
struct frame_info *next_frame = this_frame->next;
@@ -1820,6 +1821,9 @@ get_frame_address_in_block (struct frame
while in an inlined function, then the code address of the
"calling" normal function should not be adjusted either. */
+ if (tp->current_pc_is_notcurrent)
+ return pc - 1;
+
while (get_frame_type (next_frame) == INLINE_FRAME)
next_frame = next_frame->next;
@@ -1851,7 +1855,7 @@ find_frame_sal (struct frame_info *frame
sym = inline_skipped_symbol (inferior_ptid);
init_sal (sal);
- if (SYMBOL_LINE (sym) != 0)
+ if (sym != NULL && SYMBOL_LINE (sym) != 0)
{
sal->symtab = SYMBOL_SYMTAB (sym);
sal->line = SYMBOL_LINE (sym);
Index: gdb-6.8.91.20090917/gdb/breakpoint.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/breakpoint.c 2009-09-17 12:48:51.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/breakpoint.c 2009-09-17 12:49:12.000000000 +0200
@@ -62,6 +62,7 @@
#include "jit.h"
#include "xml-syscall.h"
#include "parser-defs.h"
+#include "inline-frame.h"
/* readline include files */
#include "readline/readline.h"
@@ -3220,10 +3221,24 @@ bpstat_check_breakpoint_conditions (bpst
const struct bp_location *bl = bs->breakpoint_at;
struct breakpoint *b = bl->owner;
- if (frame_id_p (b->frame_id)
- && !frame_id_eq (b->frame_id, get_stack_frame_id (get_current_frame ())))
- bs->stop = 0;
- else if (bs->stop)
+ if (frame_id_p (b->frame_id))
+ {
+ struct frame_info *b_frame, *frame;
+ struct frame_id b_frame_id, current_frame_id;
+
+ b_frame = frame_find_by_id (b->frame_id);
+
+ /* get_stack_frame_id normalizes the id to the real non-inlined function
+ by skip_inlined_frames. */
+ b_frame_id = get_stack_frame_id (b_frame);
+ current_frame_id = get_stack_frame_id (get_current_frame ());
+
+ /* Completely different (inlining notwithstanding) frames? */
+ if (!frame_id_eq (b_frame_id, current_frame_id))
+ bs->stop = 0;
+ }
+
+ if (bs->stop)
{
int value_is_zero = 0;
@@ -3399,6 +3399,12 @@ bpstat_stop_status (CORE_ADDR bp_addr, p
bs->print = 0;
}
bs->commands = copy_command_lines (bs->commands);
+
+ /* Display the innermost inlined frame at a breakpont as it gives to
+ most of the available information. */
+ if (b->type != bp_until && b->type != bp_finish)
+ while (inline_skipped_frames (ptid))
+ step_into_inline_frame (ptid);
}
/* Print nothing for this entry if we dont stop or if we dont print. */
@@ -5572,9 +5593,9 @@ set_momentary_breakpoint (struct gdbarch
{
struct breakpoint *b;
- /* If FRAME_ID is valid, it should be a real frame, not an inlined
- one. */
- gdb_assert (!frame_id_inlined_p (frame_id));
+ /* We can be returning even into an inline frame. While finish_command will
+ shortcut the case of returning _from_ an inline frame we still may be
+ returning from non-inlined frame _to_ an inlined frame. */
b = set_raw_breakpoint (gdbarch, sal, type);
b->enable_state = bp_enabled;
Index: gdb-6.8.91.20090917/gdb/inline-frame.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/inline-frame.c 2009-09-13 18:28:28.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/inline-frame.c 2009-09-17 12:49:01.000000000 +0200
@@ -199,6 +199,12 @@ inline_frame_sniffer (const struct frame
if (frame_block == NULL)
return 0;
+ /* For >=2 inlined functions SKIPPED_SYMBOL needs to be different after each
+ step_into_inline_frame call. But skip_inline_frames is called only once
+ and thus SKIPPED_SYMBOL needs to be calculated by INLINE_FRAME_SNIFFER. */
+ if (state)
+ state->skipped_symbol = NULL;
+
/* Calculate DEPTH, the number of inlined functions at this
location. */
depth = 0;
@@ -208,6 +214,10 @@ inline_frame_sniffer (const struct frame
if (block_inlined_p (cur_block))
depth++;
+ if (state && depth == state->skipped_frames
+ && state->skipped_symbol == NULL)
+ state->skipped_symbol = BLOCK_FUNCTION (cur_block);
+
cur_block = BLOCK_SUPERBLOCK (cur_block);
}
@@ -291,7 +301,6 @@ skip_inline_frames (ptid_t ptid)
{
CORE_ADDR this_pc;
struct block *frame_block, *cur_block;
- struct symbol *last_sym = NULL;
int skip_count = 0;
struct inline_state *state;
@@ -312,10 +321,7 @@ skip_inline_frames (ptid_t ptid)
of BLOCK_START. */
if (BLOCK_START (cur_block) == this_pc
|| block_starting_point_at (this_pc, cur_block))
- {
- skip_count++;
- last_sym = BLOCK_FUNCTION (cur_block);
- }
+ skip_count++;
else
break;
}
@@ -327,7 +333,6 @@ skip_inline_frames (ptid_t ptid)
state = allocate_inline_frame_state (ptid);
state->skipped_frames = skip_count;
state->saved_pc = this_pc;
- state->skipped_symbol = last_sym;
if (skip_count != 0)
reinit_frame_cache ();
@@ -345,6 +350,23 @@ step_into_inline_frame (ptid_t ptid)
reinit_frame_cache ();
}
+/* Step out of an inlined function by hiding it. */
+
+void
+step_out_of_inline_frame (ptid_t ptid)
+{
+ struct inline_state *state = find_inline_frame_state (ptid);
+
+ gdb_assert (state != NULL);
+
+ /* Simulate the caller adjustment. */
+ if (state->skipped_frames == 0)
+ state->saved_pc--;
+
+ state->skipped_frames++;
+ reinit_frame_cache ();
+}
+
/* Return the number of hidden functions inlined into the current
frame. */
Index: gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-markers.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/testsuite/gdb.opt/inline-markers.c 2009-06-28 02:20:24.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/testsuite/gdb.opt/inline-markers.c 2009-09-17 12:49:01.000000000 +0200
@@ -15,11 +15,6 @@
extern int x, y;
-void bar(void)
-{
- x += y; /* set breakpoint 1 here */
-}
-
void marker(void)
{
x += y; /* set breakpoint 2 here */
Index: gdb-6.8.91.20090917/gdb/gdbthread.h
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/gdbthread.h 2009-09-17 12:47:07.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/gdbthread.h 2009-09-17 12:49:01.000000000 +0200
@@ -191,6 +191,12 @@ struct thread_info
/* Private data used by the target vector implementation. */
struct private_thread_info *private;
+
+ /* Nonzero if the current frame PC should be unwound as the caller. It is
+ used to keep the backtrace upper levels existing after finish_command into
+ an inlined frame if the current inlined function/block was ending at the
+ current PC. */
+ int current_pc_is_notcurrent;
};
/* Create an empty thread list, or empty the existing one. */
Index: gdb-6.8.91.20090917/gdb/infcmd.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/infcmd.c 2009-09-17 12:47:07.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/infcmd.c 2009-09-17 12:49:01.000000000 +0200
@@ -1434,11 +1434,11 @@ finish_command_continuation (void *arg)
struct type *value_type;
value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (a->function));
- if (!value_type)
+ if (!SYMBOL_INLINED (a->function) && !value_type)
internal_error (__FILE__, __LINE__,
_("finish_command: function has no target type"));
- if (TYPE_CODE (value_type) != TYPE_CODE_VOID)
+ if (value_type && TYPE_CODE (value_type) != TYPE_CODE_VOID)
print_return_value (SYMBOL_TYPE (a->function), value_type);
}
@@ -1546,6 +1546,16 @@ finish_forward (struct symbol *function,
tp->initiating_frame = get_frame_id (frame);
make_cleanup (delete_longjmp_breakpoint_cleanup, &thread);
+ /* We should _always_ set CURRENT_PC_IS_NOTCURRENT here to always see the
+ calling line with the message `Value returned is ...'. Currently it is
+ seen only if at least one instruction is on that source line after the
+ call instruction. We would also need to hook step_once and only clear
+ CURRENT_PC_IS_NOTCURRENT on the first step. But it would be a change of
+ general non-inlining behavior against upstream. */
+
+ if (get_frame_type (frame) == INLINE_FRAME)
+ tp->current_pc_is_notcurrent = 1;
+
tp->proceed_to_finish = 1; /* We want stop_registers, please... */
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
@@ -1567,7 +1577,9 @@ finish_forward (struct symbol *function,
static void
finish_command (char *arg, int from_tty)
{
- struct frame_info *frame;
+ /* FIXME: Rename `current_frame' to `frame' upon a merge. */
+ struct frame_info *current_frame, *prev_frame;
+ CORE_ADDR frame_pc;
struct symbol *function;
int async_exec = 0;
@@ -1598,45 +1610,63 @@ finish_command (char *arg, int from_tty)
if (!target_has_execution)
error (_("The program is not running."));
- frame = get_prev_frame (get_selected_frame (_("No selected frame.")));
- if (frame == 0)
+ current_frame = get_selected_frame (_("No selected frame."));
+ frame_pc = get_frame_pc (current_frame);
+ prev_frame = get_prev_frame (current_frame);
+ if (prev_frame == 0)
error (_("\"finish\" not meaningful in the outermost frame."));
- clear_proceed_status ();
-
/* Finishing from an inline frame is completely different. We don't
try to show the "return value" - no way to locate it. So we do
not need a completion. */
- if (get_frame_type (get_selected_frame (_("No selected frame.")))
- == INLINE_FRAME)
+ if (get_frame_type (current_frame) == INLINE_FRAME)
{
- /* Claim we are stepping in the calling frame. An empty step
- range means that we will stop once we aren't in a function
- called by that frame. We don't use the magic "1" value for
- step_range_end, because then infrun will think this is nexti,
- and not step over the rest of this inlined function call. */
struct thread_info *tp = inferior_thread ();
struct symtab_and_line empty_sal;
- init_sal (&empty_sal);
- set_step_info (frame, empty_sal);
- tp->step_range_start = tp->step_range_end = get_frame_pc (frame);
- tp->step_over_calls = STEP_OVER_ALL;
+ struct block *frame_block;
/* Print info on the selected frame, including level number but not
source. */
if (from_tty)
{
printf_filtered (_("Run till exit from "));
- print_stack_frame (get_selected_frame (NULL), 1, LOCATION);
+ print_stack_frame (current_frame, 1, LOCATION);
+ }
+
+ /* Even just a single stepi would get us out of the caller function PC
+ range. */
+
+ frame_block = get_frame_block (current_frame, NULL);
+
+ /* FRAME_BLOCK must be initialized and also the frame printing above must
+ be done still with the original CURRENT_PC_IS_NOTCURRENT setting. */
+ clear_proceed_status ();
+
+ if (frame_block && BLOCK_END (frame_block) == frame_pc)
+ {
+ step_out_of_inline_frame (tp->ptid);
+ tp->current_pc_is_notcurrent = 1;
+ normal_stop ();
+ return;
}
+ /* Claim we are stepping in the calling frame. An empty step
+ range means that we will stop once we aren't in a function
+ called by that frame. We don't use the magic "1" value for
+ step_range_end, because then infrun will think this is nexti,
+ and not step over the rest of this inlined function call. */
+ init_sal (&empty_sal);
+ set_step_info (prev_frame, empty_sal);
+ tp->step_range_start = tp->step_range_end = get_frame_pc (prev_frame);
+ tp->step_over_calls = STEP_OVER_ALL;
+
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1);
return;
}
/* Find the function we will return from. */
- function = find_pc_function (get_frame_pc (get_selected_frame (NULL)));
+ function = find_pc_function (frame_pc);
/* Print info on the selected frame, including level number but not
source. */
@@ -1650,10 +1680,14 @@ finish_command (char *arg, int from_tty)
print_stack_frame (get_selected_frame (NULL), 1, LOCATION);
}
+ /* Frames printing above must be done still with the original
+ CURRENT_PC_IS_NOTCURRENT setting. */
+ clear_proceed_status ();
+
if (execution_direction == EXEC_REVERSE)
finish_backward (function);
else
- finish_forward (function, frame);
+ finish_forward (function, prev_frame);
}
Index: gdb-6.8.91.20090917/gdb/target.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/target.c 2009-09-17 12:48:49.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/target.c 2009-09-17 12:49:01.000000000 +0200
@@ -2187,6 +2187,7 @@ target_resume (ptid_t ptid, int step, en
{
struct target_ops *t;
+ clear_inline_frame_state (ptid);
target_dcache_invalidate ();
for (t = current_target.beneath; t != NULL; t = t->beneath)
Index: gdb-6.8.91.20090917/gdb/inline-frame.h
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/inline-frame.h 2009-06-28 02:20:22.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/inline-frame.h 2009-09-17 12:49:01.000000000 +0200
@@ -43,6 +43,10 @@ void clear_inline_frame_state (ptid_t pt
void step_into_inline_frame (ptid_t ptid);
+/* Step out of an inlined function by hiding it. */
+
+void step_out_of_inline_frame (ptid_t ptid);
+
/* Return the number of hidden functions inlined into the current
frame. */
Index: gdb-6.8.91.20090917/gdb/dwarf2read.c
===================================================================
--- gdb-6.8.91.20090917.orig/gdb/dwarf2read.c 2009-09-17 12:48:51.000000000 +0200
+++ gdb-6.8.91.20090917/gdb/dwarf2read.c 2009-09-17 12:49:01.000000000 +0200
@@ -4128,6 +4128,7 @@ read_func_scope (struct die_info *die, s
struct block *block;
unsigned die_children = 0;
int inlined_func = (die->tag == DW_TAG_inlined_subroutine);
+ struct type *type;
if (inlined_func)
{
@@ -4169,7 +4170,10 @@ read_func_scope (struct die_info *die, s
add_to_cu_func_list (name, lowpc, highpc, cu);
new = push_context (0, lowpc);
- new->name = new_symbol (die, read_type_die (die, cu), cu);
+ type = read_type_die (die, cu);
+ gdb_assert (type != NULL);
+ new->name = new_symbol (die, type, cu);
+ gdb_assert (TYPE_CODE (SYMBOL_TYPE (new->name)) == TYPE_CODE_FUNC);
/* If there is a location expression for DW_AT_frame_base, record
it. */
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