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- archer-jankratochvil-fedora12 commit: 

93f5e942bdcdcc376ece452c309bedabae71def9
- Fix "can't compute CFA for this frame" (by Tom Tromey, BZ 516627).
This commit is contained in:
Jan Kratochvil 2009-08-11 18:07:06 +00:00
parent 912c39689b
commit 99fa6c959f
2 changed files with 478 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

507
gdb-archer.patch
View File

@ -2,7 +2,7 @@ http://sourceware.org/gdb/wiki/ProjectArcher
http://sourceware.org/gdb/wiki/ArcherBranchManagement
GIT snapshot:
commit 81de3c6abae4f7e3738aa9bcc0ab2f8725cce252
commit 93f5e942bdcdcc376ece452c309bedabae71def9
branch `archer' - the merge of branches:
archer-tromey-call-frame-cfa
@ -3246,7 +3246,7 @@ index 4984f31..4bbbe4e 100644
This observer is used for internal testing. Do not use.
See testsuite/gdb.gdb/observer.exp.
diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c
index 0f6da40..c1c162e 100644
index 0f6da40..fc70309 100644
--- a/gdb/dwarf2-frame.c
+++ b/gdb/dwarf2-frame.c
@@ -38,6 +38,7 @@
@ -3271,7 +3271,18 @@ index 0f6da40..c1c162e 100644
no_get_tls_address (void *baton, CORE_ADDR offset)
{
internal_error (__FILE__, __LINE__,
@@ -360,14 +368,16 @@ execute_stack_op (gdb_byte *exp, ULONGEST len, int addr_size,
@@ -352,24 +360,29 @@ execute_stack_op (gdb_byte *exp, ULONGEST len, int addr_size,
{
struct dwarf_expr_context *ctx;
CORE_ADDR result;
+ struct cleanup *old_chain;
ctx = new_dwarf_expr_context ();
+ old_chain = make_cleanup_free_dwarf_expr_context (ctx);
+
ctx->gdbarch = get_frame_arch (this_frame);
ctx->addr_size = addr_size;
ctx->baton = this_frame;
ctx->read_reg = read_reg;
ctx->read_mem = read_mem;
ctx->get_frame_base = no_get_frame_base;
@ -3287,9 +3298,12 @@ index 0f6da40..c1c162e 100644
result = read_reg (this_frame, result);
+ /* FIXME */
free_dwarf_expr_context (ctx);
- free_dwarf_expr_context (ctx);
+ do_cleanups (old_chain);
@@ -1247,6 +1257,14 @@ dwarf2_frame_base_sniffer (struct frame_info *this_frame)
return result;
}
@@ -1247,6 +1260,14 @@ dwarf2_frame_base_sniffer (struct frame_info *this_frame)
return NULL;
}
@ -3297,14 +3311,14 @@ index 0f6da40..c1c162e 100644
+CORE_ADDR
+dwarf2_frame_cfa (struct frame_info *this_frame)
+{
+ if (! frame_base_is (this_frame, &dwarf2_frame_base))
+ if (! frame_unwinder_is (this_frame, &dwarf2_frame_unwind))
+ error (_("can't compute CFA for this frame"));
+ return get_frame_base_address (this_frame);
+ return get_frame_base (this_frame);
+}
const struct objfile_data *dwarf2_frame_objfile_data;
@@ -1536,6 +1554,14 @@ dwarf2_frame_find_fde (CORE_ADDR *pc)
@@ -1536,6 +1557,14 @@ dwarf2_frame_find_fde (CORE_ADDR *pc)
CORE_ADDR offset;
CORE_ADDR seek_pc;
@ -3333,10 +3347,33 @@ index b203661..dd03d59 100644
+
#endif /* dwarf2-frame.h */
diff --git a/gdb/dwarf2expr.c b/gdb/dwarf2expr.c
index 8dbf976..aec7b92 100644
index 8dbf976..228eae7 100644
--- a/gdb/dwarf2expr.c
+++ b/gdb/dwarf2expr.c
@@ -109,8 +109,7 @@ dwarf_expr_fetch (struct dwarf_expr_context *ctx, int n)
@@ -61,6 +61,22 @@ free_dwarf_expr_context (struct dwarf_expr_context *ctx)
xfree (ctx);
}
+/* Helper for make_cleanup_free_dwarf_expr_context. */
+
+static void
+free_dwarf_expr_context_cleanup (void *arg)
+{
+ free_dwarf_expr_context (arg);
+}
+
+/* Return a cleanup that calls free_dwarf_expr_context. */
+
+struct cleanup *
+make_cleanup_free_dwarf_expr_context (struct dwarf_expr_context *ctx)
+{
+ return make_cleanup (free_dwarf_expr_context_cleanup, ctx);
+}
+
/* Expand the memory allocated to CTX's stack to contain at least
NEED more elements than are currently used. */
@@ -109,8 +125,7 @@ dwarf_expr_fetch (struct dwarf_expr_context *ctx, int n)
/* Add a new piece to CTX's piece list. */
static void
@ -3346,7 +3383,7 @@ index 8dbf976..aec7b92 100644
{
struct dwarf_expr_piece *p;
@@ -125,9 +124,15 @@ add_piece (struct dwarf_expr_context *ctx,
@@ -125,9 +140,15 @@ add_piece (struct dwarf_expr_context *ctx,
* sizeof (struct dwarf_expr_piece));
p = &ctx->pieces[ctx->num_pieces - 1];
@ -3364,7 +3401,7 @@ index 8dbf976..aec7b92 100644
}
/* Evaluate the expression at ADDR (LEN bytes long) using the context
@@ -271,6 +276,21 @@ signed_address_type (struct gdbarch *gdbarch, int addr_size)
@@ -271,6 +292,21 @@ signed_address_type (struct gdbarch *gdbarch, int addr_size)
}
}
@ -3386,7 +3423,7 @@ index 8dbf976..aec7b92 100644
/* The engine for the expression evaluator. Using the context in CTX,
evaluate the expression between OP_PTR and OP_END. */
@@ -279,8 +299,7 @@ execute_stack_op (struct dwarf_expr_context *ctx,
@@ -279,8 +315,7 @@ execute_stack_op (struct dwarf_expr_context *ctx,
gdb_byte *op_ptr, gdb_byte *op_end)
{
enum bfd_endian byte_order = gdbarch_byte_order (ctx->gdbarch);
@ -3396,7 +3433,7 @@ index 8dbf976..aec7b92 100644
ctx->initialized = 1; /* Default is initialized. */
if (ctx->recursion_depth > ctx->max_recursion_depth)
@@ -420,20 +439,36 @@ execute_stack_op (struct dwarf_expr_context *ctx,
@@ -420,20 +455,36 @@ execute_stack_op (struct dwarf_expr_context *ctx,
"used either alone or in conjuction with DW_OP_piece."));
result = op - DW_OP_reg0;
@ -3439,7 +3476,7 @@ index 8dbf976..aec7b92 100644
case DW_OP_breg0:
case DW_OP_breg1:
case DW_OP_breg2:
@@ -498,11 +533,12 @@ execute_stack_op (struct dwarf_expr_context *ctx,
@@ -498,11 +549,12 @@ execute_stack_op (struct dwarf_expr_context *ctx,
(ctx->get_frame_base) (ctx->baton, &datastart, &datalen);
dwarf_expr_eval (ctx, datastart, datalen);
result = dwarf_expr_fetch (ctx, 0);
@ -3454,7 +3491,7 @@ index 8dbf976..aec7b92 100644
}
break;
case DW_OP_dup:
@@ -700,6 +736,10 @@ execute_stack_op (struct dwarf_expr_context *ctx,
@@ -700,6 +752,10 @@ execute_stack_op (struct dwarf_expr_context *ctx,
}
break;
@ -3465,7 +3502,7 @@ index 8dbf976..aec7b92 100644
case DW_OP_GNU_push_tls_address:
/* Variable is at a constant offset in the thread-local
storage block into the objfile for the current thread and
@@ -738,12 +778,13 @@ execute_stack_op (struct dwarf_expr_context *ctx,
@@ -738,12 +794,13 @@ execute_stack_op (struct dwarf_expr_context *ctx,
/* Record the piece. */
op_ptr = read_uleb128 (op_ptr, op_end, &size);
@ -3484,7 +3521,7 @@ index 8dbf976..aec7b92 100644
}
goto no_push;
@@ -755,6 +796,13 @@ execute_stack_op (struct dwarf_expr_context *ctx,
@@ -755,6 +812,13 @@ execute_stack_op (struct dwarf_expr_context *ctx,
ctx->initialized = 0;
goto no_push;
@ -3499,7 +3536,7 @@ index 8dbf976..aec7b92 100644
error (_("Unhandled dwarf expression opcode 0x%x"), op);
}
diff --git a/gdb/dwarf2expr.h b/gdb/dwarf2expr.h
index 7047922..232208d 100644
index 7047922..597c2de 100644
--- a/gdb/dwarf2expr.h
+++ b/gdb/dwarf2expr.h
@@ -23,6 +23,19 @@
@ -3621,8 +3658,17 @@ index 7047922..232208d 100644
/* The length of the piece, in bytes. */
ULONGEST size;
@@ -131,6 +159,8 @@ struct dwarf_expr_piece
struct dwarf_expr_context *new_dwarf_expr_context (void);
void free_dwarf_expr_context (struct dwarf_expr_context *ctx);
+struct cleanup *
+ make_cleanup_free_dwarf_expr_context (struct dwarf_expr_context *ctx);
void dwarf_expr_push (struct dwarf_expr_context *ctx, CORE_ADDR value);
void dwarf_expr_pop (struct dwarf_expr_context *ctx);
diff --git a/gdb/dwarf2loc.c b/gdb/dwarf2loc.c
index 071b5ac..07bb8ba 100644
index 071b5ac..7b2e488 100644
--- a/gdb/dwarf2loc.c
+++ b/gdb/dwarf2loc.c
@@ -36,6 +36,7 @@
@ -4004,7 +4050,20 @@ index 071b5ac..07bb8ba 100644
/* Thread-local accesses do require a frame. */
static CORE_ADDR
needs_frame_tls_address (void *baton, CORE_ADDR offset)
@@ -356,11 +567,12 @@ dwarf2_loc_desc_needs_frame (gdb_byte *data, unsigned short size,
@@ -346,21 +557,25 @@ dwarf2_loc_desc_needs_frame (gdb_byte *data, unsigned short size,
struct needs_frame_baton baton;
struct dwarf_expr_context *ctx;
int in_reg;
+ struct cleanup *old_chain;
baton.needs_frame = 0;
ctx = new_dwarf_expr_context ();
+ old_chain = make_cleanup_free_dwarf_expr_context (ctx);
+
ctx->gdbarch = get_objfile_arch (dwarf2_per_cu_objfile (per_cu));
ctx->addr_size = dwarf2_per_cu_addr_size (per_cu);
ctx->baton = &baton;
ctx->read_reg = needs_frame_read_reg;
ctx->read_mem = needs_frame_read_mem;
ctx->get_frame_base = needs_frame_frame_base;
@ -4018,7 +4077,7 @@ index 071b5ac..07bb8ba 100644
if (ctx->num_pieces > 0)
{
@@ -369,7 +581,7 @@ dwarf2_loc_desc_needs_frame (gdb_byte *data, unsigned short size,
@@ -369,11 +584,11 @@ dwarf2_loc_desc_needs_frame (gdb_byte *data, unsigned short size,
/* If the location has several pieces, and any of them are in
registers, then we will need a frame to fetch them from. */
for (i = 0; i < ctx->num_pieces; i++)
@ -4027,7 +4086,12 @@ index 071b5ac..07bb8ba 100644
in_reg = 1;
}
@@ -601,7 +813,7 @@ static int
- free_dwarf_expr_context (ctx);
+ do_cleanups (old_chain);
return baton.needs_frame || in_reg;
}
@@ -601,7 +816,7 @@ static int
loclist_describe_location (struct symbol *symbol, struct ui_file *stream)
{
/* FIXME: Could print the entire list of locations. */
@ -4036,7 +4100,7 @@ index 071b5ac..07bb8ba 100644
return 1;
}
@@ -617,16 +829,56 @@ loclist_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
@@ -617,16 +832,56 @@ loclist_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
data = find_location_expression (dlbaton, &size, ax->scope);
if (data == NULL)
@ -8250,7 +8314,7 @@ index 8c027c9..d201f76 100644
else
{
diff --git a/gdb/frame.c b/gdb/frame.c
index 67e0607..1eb7f9d 100644
index 67e0607..49c3013 100644
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -1109,6 +1109,14 @@ has_stack_frames (void)
@ -8268,7 +8332,7 @@ index 67e0607..1eb7f9d 100644
/* Don't try to read from a dead thread. */
if (is_exited (inferior_ptid))
return 0;
@@ -1843,6 +1851,17 @@ get_frame_args_address (struct frame_info *fi)
@@ -1843,6 +1851,15 @@ get_frame_args_address (struct frame_info *fi)
return fi->base->this_args (fi, &fi->base_cache);
}
@ -8276,28 +8340,27 @@ index 67e0607..1eb7f9d 100644
+ otherwise. */
+
+int
+frame_base_is (struct frame_info *fi, const struct frame_base *base)
+frame_unwinder_is (struct frame_info *fi, const struct frame_unwind *unwinder)
+{
+ if (fi->base == NULL)
+ fi->base = frame_base_find_by_frame (fi);
+ return fi->base == base;
+ return fi->unwind == unwinder;
+}
+
/* Level of the selected frame: 0 for innermost, 1 for its caller, ...
or -1 for a NULL frame. */
diff --git a/gdb/frame.h b/gdb/frame.h
index febef5c..09bf628 100644
index febef5c..611c6d3 100644
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -696,4 +696,9 @@ extern struct frame_info *deprecated_safe_get_selected_frame (void);
@@ -696,4 +696,10 @@ extern struct frame_info *deprecated_safe_get_selected_frame (void);
extern struct frame_info *create_new_frame (CORE_ADDR base, CORE_ADDR pc);
+/* Return true if the frame base for frame FI is BASE; false
+/* Return true if the frame unwinder for frame FI is UNWINDER; false
+ otherwise. */
+
+extern int frame_base_is (struct frame_info *fi, const struct frame_base *base);
+extern int frame_unwinder_is (struct frame_info *fi,
+ const struct frame_unwind *unwinder);
+
#endif /* !defined (FRAME_H) */
diff --git a/gdb/gdbinit.in b/gdb/gdbinit.in
@ -21677,6 +21740,382 @@ index 0000000..6922eed
+if [test_compiler_info gcc-4-3-*] then { setup_xfail *-*-* }
+
+gdb_test "print x" "= 11" "Print imported namespace x"
diff --git a/gdb/testsuite/gdb.dwarf2/callframecfa.S b/gdb/testsuite/gdb.dwarf2/callframecfa.S
new file mode 100644
index 0000000..6d0421a
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/callframecfa.S
@@ -0,0 +1,309 @@
+/*
+ Copyright 2009 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 was compiled from a trivial program just to test the
+ DW_OP_call_frame_cfa operator:
+
+ int func (int arg) {
+ return arg + 23;
+ }
+
+ int main(int argc, char *argv[]) {
+ func (77);
+ }
+*/
+
+ .file "q.c"
+ .section .debug_abbrev,"",@progbits
+.Ldebug_abbrev0:
+ .section .debug_info,"",@progbits
+.Ldebug_info0:
+ .section .debug_line,"",@progbits
+.Ldebug_line0:
+ .text
+.Ltext0:
+.globl func
+ .type func, @function
+func:
+.LFB0:
+ .file 1 "q.c"
+ .loc 1 2 0
+ .cfi_startproc
+ pushl %ebp
+ .cfi_def_cfa_offset 8
+ movl %esp, %ebp
+ .cfi_offset 5, -8
+ .cfi_def_cfa_register 5
+ .loc 1 3 0
+ movl 8(%ebp), %eax
+ addl $23, %eax
+ .loc 1 4 0
+ popl %ebp
+ .cfi_restore 5
+ .cfi_def_cfa 4, 4
+ ret
+ .cfi_endproc
+.LFE0:
+ .size func, .-func
+.globl _start
+ .type _start, @function
+_start:
+.LFB1:
+ .loc 1 6 0
+ .cfi_startproc
+ pushl %ebp
+ .cfi_def_cfa_offset 8
+ movl %esp, %ebp
+ .cfi_offset 5, -8
+ .cfi_def_cfa_register 5
+ subl $4, %esp
+ .loc 1 7 0
+ movl $77, (%esp)
+ call func
+ .loc 1 8 0
+ leave
+ .cfi_restore 5
+ .cfi_def_cfa 4, 4
+ ret
+ .cfi_endproc
+.LFE1:
+ .size _start, .-_start
+.Letext0:
+ .section .debug_info
+ .long 0x9e
+ .value 0x3
+ .long .Ldebug_abbrev0
+ .byte 0x4
+ .uleb128 0x1
+ .long .LASF5
+ .byte 0x1
+ .string "q.c"
+ .long .LASF6
+ .long .Ltext0
+ .long .Letext0
+ .long .Ldebug_line0
+ .uleb128 0x2
+ .byte 0x1
+ .long .LASF0
+ .byte 0x1
+ .byte 0x1
+ .byte 0x1
+ .long 0x4f
+ .long .LFB0
+ .long .LFE0
+ .byte 0x1
+ .byte 0x9c
+ .long 0x4f
+ .uleb128 0x3
+ .string "arg"
+ .byte 0x1
+ .byte 0x1
+ .long 0x4f
+ .byte 0x2
+ .byte 0x91
+ .sleb128 0
+ .byte 0x0
+ .uleb128 0x4
+ .byte 0x4
+ .byte 0x5
+ .string "int"
+ .uleb128 0x2
+ .byte 0x1
+ .long .LASF1
+ .byte 0x1
+ .byte 0x6
+ .byte 0x1
+ .long 0x4f
+ .long .LFB1
+ .long .LFE1
+ .byte 0x1
+ .byte 0x9c
+ .long 0x8e
+ .uleb128 0x5
+ .long .LASF2
+ .byte 0x1
+ .byte 0x6
+ .long 0x4f
+ .byte 0x2
+ .byte 0x91
+ .sleb128 0
+ .uleb128 0x5
+ .long .LASF3
+ .byte 0x1
+ .byte 0x6
+ .long 0x8e
+ .byte 0x2
+ .byte 0x91
+ .sleb128 4
+ .byte 0x0
+ .uleb128 0x6
+ .byte 0x4
+ .long 0x94
+ .uleb128 0x6
+ .byte 0x4
+ .long 0x9a
+ .uleb128 0x7
+ .byte 0x1
+ .byte 0x6
+ .long .LASF4
+ .byte 0x0
+ .section .debug_abbrev
+ .uleb128 0x1
+ .uleb128 0x11
+ .byte 0x1
+ .uleb128 0x25
+ .uleb128 0xe
+ .uleb128 0x13
+ .uleb128 0xb
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x1b
+ .uleb128 0xe
+ .uleb128 0x11
+ .uleb128 0x1
+ .uleb128 0x12
+ .uleb128 0x1
+ .uleb128 0x10
+ .uleb128 0x6
+ .byte 0x0
+ .byte 0x0
+ .uleb128 0x2
+ .uleb128 0x2e
+ .byte 0x1
+ .uleb128 0x3f
+ .uleb128 0xc
+ .uleb128 0x3
+ .uleb128 0xe
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x27
+ .uleb128 0xc
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x11
+ .uleb128 0x1
+ .uleb128 0x12
+ .uleb128 0x1
+ .uleb128 0x40
+ .uleb128 0xa
+ .uleb128 0x1
+ .uleb128 0x13
+ .byte 0x0
+ .byte 0x0
+ .uleb128 0x3
+ .uleb128 0x5
+ .byte 0x0
+ .uleb128 0x3
+ .uleb128 0x8
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x2
+ .uleb128 0xa
+ .byte 0x0
+ .byte 0x0
+ .uleb128 0x4
+ .uleb128 0x24
+ .byte 0x0
+ .uleb128 0xb
+ .uleb128 0xb
+ .uleb128 0x3e
+ .uleb128 0xb
+ .uleb128 0x3
+ .uleb128 0x8
+ .byte 0x0
+ .byte 0x0
+ .uleb128 0x5
+ .uleb128 0x5
+ .byte 0x0
+ .uleb128 0x3
+ .uleb128 0xe
+ .uleb128 0x3a
+ .uleb128 0xb
+ .uleb128 0x3b
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .uleb128 0x2
+ .uleb128 0xa
+ .byte 0x0
+ .byte 0x0
+ .uleb128 0x6
+ .uleb128 0xf
+ .byte 0x0
+ .uleb128 0xb
+ .uleb128 0xb
+ .uleb128 0x49
+ .uleb128 0x13
+ .byte 0x0
+ .byte 0x0
+ .uleb128 0x7
+ .uleb128 0x24
+ .byte 0x0
+ .uleb128 0xb
+ .uleb128 0xb
+ .uleb128 0x3e
+ .uleb128 0xb
+ .uleb128 0x3
+ .uleb128 0xe
+ .byte 0x0
+ .byte 0x0
+ .byte 0x0
+ .section .debug_pubnames,"",@progbits
+ .long 0x20
+ .value 0x2
+ .long .Ldebug_info0
+ .long 0xa2
+ .long 0x25
+ .string "func"
+ .long 0x56
+ .string "main"
+ .long 0x0
+ .section .debug_aranges,"",@progbits
+ .long 0x1c
+ .value 0x2
+ .long .Ldebug_info0
+ .byte 0x4
+ .byte 0x0
+ .value 0x0
+ .value 0x0
+ .long .Ltext0
+ .long .Letext0-.Ltext0
+ .long 0x0
+ .long 0x0
+ .section .debug_str,"MS",@progbits,1
+.LASF5:
+ .string "GNU C 4.5.0 20090810 (experimental) [trunk revision 150633]"
+.LASF2:
+ .string "argc"
+.LASF6:
+ .string "/tmp"
+.LASF0:
+ .string "func"
+.LASF3:
+ .string "argv"
+.LASF1:
+ .string "main"
+.LASF4:
+ .string "char"
+ .ident "GCC: (GNU) 4.5.0 20090810 (experimental) [trunk revision 150633]"
+ .section .note.GNU-stack,"",@progbits
diff --git a/gdb/testsuite/gdb.dwarf2/callframecfa.exp b/gdb/testsuite/gdb.dwarf2/callframecfa.exp
new file mode 100644
index 0000000..00d67fc
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/callframecfa.exp
@@ -0,0 +1,55 @@
+# Copyright 2009 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 DW_OP_call_frame_cfa.
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+# For now pick a sampling of likely targets.
+if {![istarget *-*-linux*]
+ && ![istarget *-*-gnu*]
+ && ![istarget *-*-elf*]
+ && ![istarget *-*-openbsd*]
+ && ![istarget arm-*-eabi*]
+ && ![istarget powerpc-*-eabi*]} {
+ return 0
+}
+# This test can only be run on x86 targets.
+if {![istarget i?86-*]} {
+ return 0
+}
+
+set testfile "callframecfa"
+set srcfile ${testfile}.S
+set binfile ${objdir}/${subdir}/${testfile}.x
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable \
+ [list {additional_flags=-nostdlib}]] != "" } {
+ return -1
+}
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load ${binfile}
+
+gdb_test "break *func" "Breakpoint 1.*" "set breakpoint for call-frame-cfa"
+gdb_test "run" "" "run for call-frame-cfa"
+gdb_test "display arg" "arg = 77" "set display for call-frame-cfa"
+
+# We know how many instructions are in the function. Note that we
+# can't handle the "ret" instruction due to the epilogue unwinder.
+for {set i 1} {$i < 5} {incr i} {
+ gdb_test "si" "arg = 77" "step $i for call-frame-cfa"
+}
diff --git a/gdb/testsuite/gdb.dwarf2/dw2-stripped.c b/gdb/testsuite/gdb.dwarf2/dw2-stripped.c
new file mode 100644
index 0000000..1f02d90

6
gdb.spec
View File

@ -14,7 +14,7 @@ Version: 6.8.50.20090811
# The release always contains a leading reserved number, start it at 1.
# `upstream' is not a part of `name' to stay fully rpm dependencies compatible for the testing.
Release: 1%{?_with_upstream:.upstream}%{?dist}
Release: 2%{?_with_upstream:.upstream}%{?dist}
License: GPLv3+
Group: Development/Debuggers
@ -825,6 +825,10 @@ fi
%endif
%changelog
* Tue Aug 11 2009 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.8.50.20090811-2
- archer-jankratochvil-fedora12 commit: 93f5e942bdcdcc376ece452c309bedabae71def9
- Fix "can't compute CFA for this frame" (by Tom Tromey, BZ 516627).
* Tue Aug 11 2009 Jan Kratochvil <jan.kratochvil@redhat.com> - 6.8.50.20090811-1
- Support constant DW_AT_data_member_location by GCC PR debug/40659 (BZ 515377).
- Fix .spec URL.