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PR breakpoints/12435
	* amd64-tdep.c (amd64_skip_prologue): New variables start_pc_sal,
	next_sal, buf, offset and xmmreg.  Advance PC if it sees the PR.
	* dwarf2read.c (process_full_comp_unit): Initialize
	amd64_prologue_line_bug.
	* symtab.h (struct symtab): New field amd64_prologue_line_bug.

gdb/testsuite/
	PR breakpoints/12435
	* gdb.arch/amd64-prologue-xmm.c: New file.
	* gdb.arch/amd64-prologue-xmm.exp: New file.
	* gdb.arch/amd64-prologue-xmm.s: New file.
This commit is contained in:
Jan Kratochvil 2011-09-08 15:38:16 +00:00
parent b2e7f004c7
commit 08711b9a36
8 changed files with 576 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
gdb/ChangeLog
View File

@ -1,3 +1,12 @@
2011-09-08 Jan Kratochvil <jan.kratochvil@redhat.com>
PR breakpoints/12435
* amd64-tdep.c (amd64_skip_prologue): New variables start_pc_sal,
next_sal, buf, offset and xmmreg. Advance PC if it sees the PR.
* dwarf2read.c (process_full_comp_unit): Initialize
amd64_prologue_line_bug.
* symtab.h (struct symtab): New field amd64_prologue_line_bug.
2011-09-08 Jan Kratochvil <jan.kratochvil@redhat.com>
Fix TUI screen corruption.

69
gdb/amd64-tdep.c
View File

@ -1917,6 +1917,9 @@ amd64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
{
struct amd64_frame_cache cache;
CORE_ADDR pc;
struct symtab_and_line start_pc_sal, next_sal;
gdb_byte buf[4 + 8 * 7];
int offset, xmmreg;
amd64_init_frame_cache (&cache);
pc = amd64_analyze_prologue (gdbarch, start_pc, 0xffffffffffffffffLL,
@ -1924,7 +1927,71 @@ amd64_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR start_pc)
if (cache.frameless_p)
return start_pc;
return pc;
/* GCC PR debug/48827 produced false prologue end:
84 c0 test %al,%al
74 23 je after
<-- here is 0 lines advance - the false prologue end marker.
0f 29 85 70 ff ff ff movaps %xmm0,-0x90(%rbp)
0f 29 4d 80 movaps %xmm1,-0x80(%rbp)
0f 29 55 90 movaps %xmm2,-0x70(%rbp)
0f 29 5d a0 movaps %xmm3,-0x60(%rbp)
0f 29 65 b0 movaps %xmm4,-0x50(%rbp)
0f 29 6d c0 movaps %xmm5,-0x40(%rbp)
0f 29 75 d0 movaps %xmm6,-0x30(%rbp)
0f 29 7d e0 movaps %xmm7,-0x20(%rbp)
after: */
if (pc == start_pc)
return pc;
start_pc_sal = find_pc_sect_line (start_pc, NULL, 0);
if (start_pc_sal.symtab == NULL
|| !start_pc_sal.symtab->amd64_prologue_line_bug
|| start_pc_sal.pc != start_pc || pc >= start_pc_sal.end)
return pc;
next_sal = find_pc_sect_line (start_pc_sal.end, NULL, 0);
if (next_sal.line != start_pc_sal.line)
return pc;
/* START_PC can be from overlayed memory, ignored here. */
if (target_read_memory (next_sal.pc - 4, buf, sizeof (buf)) != 0)
return pc;
/* test %al,%al */
if (buf[0] != 0x84 || buf[1] != 0xc0)
return pc;
/* je AFTER */
if (buf[2] != 0x74)
return pc;
offset = 4;
for (xmmreg = 0; xmmreg < 8; xmmreg++)
{
/* movaps %xmmreg?,-0x??(%rbp) */
if (buf[offset] != 0x0f || buf[offset + 1] != 0x29
|| (buf[offset + 2] & 0b00111111) != (xmmreg << 3 | 0b101))
return pc;
if ((buf[offset + 2] & 0b11000000) == 0b01000000)
{
/* 8-bit displacement. */
offset += 4;
}
else if ((buf[offset + 2] & 0b11000000) == 0b10000000)
{
/* 32-bit displacement. */
offset += 7;
}
else
return pc;
}
/* je AFTER */
if (offset - 4 != buf[3])
return pc;
return next_sal.end;
}

3
gdb/dwarf2read.c
View File

@ -4829,6 +4829,9 @@ process_full_comp_unit (struct dwarf2_per_cu_data *per_cu)
if (gcc_4_minor >= 5)
symtab->epilogue_unwind_valid = 1;
if (gcc_4_minor >= 6)
symtab->amd64_prologue_line_bug = 1;
}
if (dwarf2_per_objfile->using_index)

5
gdb/symtab.h
View File

@ -784,6 +784,11 @@ struct symtab
unsigned int epilogue_unwind_valid : 1;
/* At least GCC 4.6.0 and 4.6.1 can produce invalid false prologue and marker
on amd64. This flag is set independently of the symtab arch. */
unsigned amd64_prologue_line_bug : 1;
/* The macro table for this symtab. Like the blockvector, this
may be shared between different symtabs --- and normally is for
all the symtabs in a given compilation unit. */

7
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2011-09-08 Jan Kratochvil <jan.kratochvil@redhat.com>
PR breakpoints/12435
* gdb.arch/amd64-prologue-xmm.c: New file.
* gdb.arch/amd64-prologue-xmm.exp: New file.
* gdb.arch/amd64-prologue-xmm.s: New file.
2011-09-08 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.dwarf2/dw2-param-error-main.c: New file.

38
gdb/testsuite/gdb.arch/amd64-prologue-xmm.c Normal file
View File

@ -0,0 +1,38 @@
/* This testcase is part of GDB, the GNU debugger.
Copyright 2011 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/>. */
static volatile int v, fail;
static void
func (int i, ...)
{
v = i;
}
static void
marker (void)
{
}
int
main (void)
{
func (1);
fail = 1;
marker ();
return 0;
}

46
gdb/testsuite/gdb.arch/amd64-prologue-xmm.exp Normal file
View File

@ -0,0 +1,46 @@
# Copyright 2011 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 GCC PR debug/48827 workaround in GDB.
set testfile "amd64-prologue-xmm"
set srcfile ${testfile}.s
set csrcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}.x
set opts {}
if [info exists COMPILE] {
# make check RUNTESTFLAGS='gdb.arch/amd64-prologue-xmm.exp COMPILE=1'
set srcfile ${csrcfile}
lappend opts debug optimize=-O0
} elseif { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
verbose "Skipping amd64-prologue-xmm test."
return 0
}
if {[prepare_for_testing ${testfile}.exp ${testfile} $srcfile $opts]} {
return -1
}
if ![runto_main] {
return -1
}
gdb_breakpoint "func"
gdb_breakpoint "marker"
gdb_continue_to_breakpoint "func"
gdb_test "p fail" " = 0" "stopped at func"

400
gdb/testsuite/gdb.arch/amd64-prologue-xmm.s Normal file
View File

@ -0,0 +1,400 @@
/* This testcase is part of GDB, the GNU debugger.
Copyright 2011 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 file is compiled from gdb.arch/amd64-prologue-xmm.c
using -g -dA -S. */
.file "amd64-prologue-xmm.c"
.text
.Ltext0:
.local v
.comm v,4,4
.local fail
.comm fail,4,4
.type func, @function
func:
.LFB0:
.file 1 "gdb.arch/amd64-prologue-xmm.c"
# gdb.arch/amd64-prologue-xmm.c:22
.loc 1 22 0
.cfi_startproc
# basic block 2
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
subq $72, %rsp
movq %rsi, -168(%rbp)
movq %rdx, -160(%rbp)
movq %rcx, -152(%rbp)
movq %r8, -144(%rbp)
movq %r9, -136(%rbp)
testb %al, %al
je .L2
# basic block 3
# gdb.arch/amd64-prologue-xmm.c:22
.loc 1 22 0
movaps %xmm0, -128(%rbp)
movaps %xmm1, -112(%rbp)
movaps %xmm2, -96(%rbp)
movaps %xmm3, -80(%rbp)
movaps %xmm4, -64(%rbp)
movaps %xmm5, -48(%rbp)
movaps %xmm6, -32(%rbp)
movaps %xmm7, -16(%rbp)
.L2:
# basic block 4
movl %edi, -180(%rbp)
# gdb.arch/amd64-prologue-xmm.c:23
.loc 1 23 0
movl -180(%rbp), %eax
movl %eax, v(%rip)
# gdb.arch/amd64-prologue-xmm.c:24
.loc 1 24 0
leave
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE0:
.size func, .-func
.type marker, @function
marker:
.LFB1:
# gdb.arch/amd64-prologue-xmm.c:28
.loc 1 28 0
.cfi_startproc
# basic block 2
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
# gdb.arch/amd64-prologue-xmm.c:29
.loc 1 29 0
popq %rbp
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE1:
.size marker, .-marker
.globl main
.type main, @function
main:
.LFB2:
# gdb.arch/amd64-prologue-xmm.c:33
.loc 1 33 0
.cfi_startproc
# basic block 2
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
# gdb.arch/amd64-prologue-xmm.c:34
.loc 1 34 0
movl $1, %edi
movl $0, %eax
call func
# gdb.arch/amd64-prologue-xmm.c:35
.loc 1 35 0
movl $1, fail(%rip)
# gdb.arch/amd64-prologue-xmm.c:36
.loc 1 36 0
call marker
# gdb.arch/amd64-prologue-xmm.c:37
.loc 1 37 0
movl $0, %eax
# gdb.arch/amd64-prologue-xmm.c:38
.loc 1 38 0
popq %rbp
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE2:
.size main, .-main
.Letext0:
.section .debug_info,"",@progbits
.Ldebug_info0:
.long 0xc0 # Length of Compilation Unit Info
.value 0x4 # DWARF version number
.long .Ldebug_abbrev0 # Offset Into Abbrev. Section
.byte 0x8 # Pointer Size (in bytes)
.uleb128 0x1 # (DIE (0xb) DW_TAG_compile_unit)
.long .LASF1 # DW_AT_producer: "GNU C 4.6.1 20110715 (Red Hat 4.6.1-3)"
.byte 0x1 # DW_AT_language
.long .LASF2 # DW_AT_name: "gdb.arch/amd64-prologue-xmm.c"
.long .LASF3 # DW_AT_comp_dir: ""
.quad .Ltext0 # DW_AT_low_pc
.quad .Letext0 # DW_AT_high_pc
.long .Ldebug_line0 # DW_AT_stmt_list
.uleb128 0x2 # (DIE (0x2d) DW_TAG_subprogram)
.long .LASF4 # DW_AT_name: "func"
.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
.byte 0x15 # DW_AT_decl_line
# DW_AT_prototyped
.quad .LFB0 # DW_AT_low_pc
.quad .LFE0 # DW_AT_high_pc
.uleb128 0x1 # DW_AT_frame_base
.byte 0x9c # DW_OP_call_frame_cfa
# DW_AT_GNU_all_call_sites
.long 0x59 # DW_AT_sibling
.uleb128 0x3 # (DIE (0x4a) DW_TAG_formal_parameter)
.ascii "i\0" # DW_AT_name
.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
.byte 0x15 # DW_AT_decl_line
.long 0x59 # DW_AT_type
.uleb128 0x3 # DW_AT_location
.byte 0x91 # DW_OP_fbreg
.sleb128 -196
.uleb128 0x4 # (DIE (0x57) DW_TAG_unspecified_parameters)
.byte 0 # end of children of DIE 0x2d
.uleb128 0x5 # (DIE (0x59) DW_TAG_base_type)
.byte 0x4 # DW_AT_byte_size
.byte 0x5 # DW_AT_encoding
.ascii "int\0" # DW_AT_name
.uleb128 0x6 # (DIE (0x60) DW_TAG_subprogram)
.long .LASF5 # DW_AT_name: "marker"
.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
.byte 0x1b # DW_AT_decl_line
# DW_AT_prototyped
.quad .LFB1 # DW_AT_low_pc
.quad .LFE1 # DW_AT_high_pc
.uleb128 0x1 # DW_AT_frame_base
.byte 0x9c # DW_OP_call_frame_cfa
# DW_AT_GNU_all_call_sites
.uleb128 0x7 # (DIE (0x79) DW_TAG_subprogram)
# DW_AT_external
.long .LASF6 # DW_AT_name: "main"
.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
.byte 0x20 # DW_AT_decl_line
# DW_AT_prototyped
.long 0x59 # DW_AT_type
.quad .LFB2 # DW_AT_low_pc
.quad .LFE2 # DW_AT_high_pc
.uleb128 0x1 # DW_AT_frame_base
.byte 0x9c # DW_OP_call_frame_cfa
# DW_AT_GNU_all_tail_call_sites
.uleb128 0x8 # (DIE (0x96) DW_TAG_variable)
.ascii "v\0" # DW_AT_name
.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
.byte 0x12 # DW_AT_decl_line
.long 0xa9 # DW_AT_type
.uleb128 0x9 # DW_AT_location
.byte 0x3 # DW_OP_addr
.quad v
.uleb128 0x9 # (DIE (0xa9) DW_TAG_volatile_type)
.long 0x59 # DW_AT_type
.uleb128 0xa # (DIE (0xae) DW_TAG_variable)
.long .LASF0 # DW_AT_name: "fail"
.byte 0x1 # DW_AT_decl_file (gdb.arch/amd64-prologue-xmm.c)
.byte 0x12 # DW_AT_decl_line
.long 0xa9 # DW_AT_type
.uleb128 0x9 # DW_AT_location
.byte 0x3 # DW_OP_addr
.quad fail
.byte 0 # end of children of DIE 0xb
.section .debug_abbrev,"",@progbits
.Ldebug_abbrev0:
.uleb128 0x1 # (abbrev code)
.uleb128 0x11 # (TAG: DW_TAG_compile_unit)
.byte 0x1 # DW_children_yes
.uleb128 0x25 # (DW_AT_producer)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x13 # (DW_AT_language)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3 # (DW_AT_name)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x1b # (DW_AT_comp_dir)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x10 # (DW_AT_stmt_list)
.uleb128 0x17 # (DW_FORM_sec_offset)
.byte 0
.byte 0
.uleb128 0x2 # (abbrev code)
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
.byte 0x1 # DW_children_yes
.uleb128 0x3 # (DW_AT_name)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x3a # (DW_AT_decl_file)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3b # (DW_AT_decl_line)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x27 # (DW_AT_prototyped)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x40 # (DW_AT_frame_base)
.uleb128 0x18 # (DW_FORM_exprloc)
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x1 # (DW_AT_sibling)
.uleb128 0x13 # (DW_FORM_ref4)
.byte 0
.byte 0
.uleb128 0x3 # (abbrev code)
.uleb128 0x5 # (TAG: DW_TAG_formal_parameter)
.byte 0 # DW_children_no
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x3a # (DW_AT_decl_file)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3b # (DW_AT_decl_line)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.uleb128 0x2 # (DW_AT_location)
.uleb128 0x18 # (DW_FORM_exprloc)
.byte 0
.byte 0
.uleb128 0x4 # (abbrev code)
.uleb128 0x18 # (TAG: DW_TAG_unspecified_parameters)
.byte 0 # DW_children_no
.byte 0
.byte 0
.uleb128 0x5 # (abbrev code)
.uleb128 0x24 # (TAG: DW_TAG_base_type)
.byte 0 # DW_children_no
.uleb128 0xb # (DW_AT_byte_size)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3e # (DW_AT_encoding)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.byte 0
.byte 0
.uleb128 0x6 # (abbrev code)
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
.byte 0 # DW_children_no
.uleb128 0x3 # (DW_AT_name)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x3a # (DW_AT_decl_file)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3b # (DW_AT_decl_line)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x27 # (DW_AT_prototyped)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x40 # (DW_AT_frame_base)
.uleb128 0x18 # (DW_FORM_exprloc)
.uleb128 0x2117 # (DW_AT_GNU_all_call_sites)
.uleb128 0x19 # (DW_FORM_flag_present)
.byte 0
.byte 0
.uleb128 0x7 # (abbrev code)
.uleb128 0x2e # (TAG: DW_TAG_subprogram)
.byte 0 # DW_children_no
.uleb128 0x3f # (DW_AT_external)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x3 # (DW_AT_name)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x3a # (DW_AT_decl_file)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3b # (DW_AT_decl_line)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x27 # (DW_AT_prototyped)
.uleb128 0x19 # (DW_FORM_flag_present)
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.uleb128 0x11 # (DW_AT_low_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x12 # (DW_AT_high_pc)
.uleb128 0x1 # (DW_FORM_addr)
.uleb128 0x40 # (DW_AT_frame_base)
.uleb128 0x18 # (DW_FORM_exprloc)
.uleb128 0x2116 # (DW_AT_GNU_all_tail_call_sites)
.uleb128 0x19 # (DW_FORM_flag_present)
.byte 0
.byte 0
.uleb128 0x8 # (abbrev code)
.uleb128 0x34 # (TAG: DW_TAG_variable)
.byte 0 # DW_children_no
.uleb128 0x3 # (DW_AT_name)
.uleb128 0x8 # (DW_FORM_string)
.uleb128 0x3a # (DW_AT_decl_file)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3b # (DW_AT_decl_line)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.uleb128 0x2 # (DW_AT_location)
.uleb128 0x18 # (DW_FORM_exprloc)
.byte 0
.byte 0
.uleb128 0x9 # (abbrev code)
.uleb128 0x35 # (TAG: DW_TAG_volatile_type)
.byte 0 # DW_children_no
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.byte 0
.byte 0
.uleb128 0xa # (abbrev code)
.uleb128 0x34 # (TAG: DW_TAG_variable)
.byte 0 # DW_children_no
.uleb128 0x3 # (DW_AT_name)
.uleb128 0xe # (DW_FORM_strp)
.uleb128 0x3a # (DW_AT_decl_file)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x3b # (DW_AT_decl_line)
.uleb128 0xb # (DW_FORM_data1)
.uleb128 0x49 # (DW_AT_type)
.uleb128 0x13 # (DW_FORM_ref4)
.uleb128 0x2 # (DW_AT_location)
.uleb128 0x18 # (DW_FORM_exprloc)
.byte 0
.byte 0
.byte 0
.section .debug_aranges,"",@progbits
.long 0x2c # Length of Address Ranges Info
.value 0x2 # DWARF Version
.long .Ldebug_info0 # Offset of Compilation Unit Info
.byte 0x8 # Size of Address
.byte 0 # Size of Segment Descriptor
.value 0 # Pad to 16 byte boundary
.value 0
.quad .Ltext0 # Address
.quad .Letext0-.Ltext0 # Length
.quad 0
.quad 0
.section .debug_line,"",@progbits
.Ldebug_line0:
.section .debug_str,"MS",@progbits,1
.LASF3:
.string ""
.LASF0:
.string "fail"
.LASF4:
.string "func"
.LASF1:
.string "GNU C 4.6.1 20110715 (Red Hat 4.6.1-3)"
.LASF2:
.string "gdb.arch/amd64-prologue-xmm.c"
.LASF5:
.string "marker"
.LASF6:
.string "main"
.ident "GCC: (GNU) 4.6.1 20110715 (Red Hat 4.6.1-3)"
.section .note.GNU-stack,"",@progbits