505 lines
7.9 KiB
ArmAsm
505 lines
7.9 KiB
ArmAsm
/*
|
|
Copyright 2009-2014 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_stack_value and DW_OP_implicit_value operators:
|
|
|
|
unsigned int func (unsigned int arg) __attribute__ ((__noinline__));
|
|
|
|
unsigned int func (unsigned int arg)
|
|
{
|
|
unsigned int uses_stack_op = 23;
|
|
unsigned int uses_lit_op = 0x7fffffff;
|
|
unsigned int result = arg;
|
|
|
|
if (arg % 2)
|
|
result += uses_lit_op + uses_stack_op;
|
|
else
|
|
{
|
|
++uses_stack_op;
|
|
++uses_lit_op;
|
|
|
|
result -= uses_stack_op + uses_lit_op;
|
|
}
|
|
|
|
return result * uses_stack_op; // line 19, see the .exp file
|
|
}
|
|
|
|
int main (int argc, char *argv[])
|
|
{
|
|
return func (1024);
|
|
}
|
|
|
|
Then it was compiled with:
|
|
|
|
gcc -fvar-tracking{,-assignments} -gdwarf-3
|
|
-fno-inline{,-functions,-small-functions,-functions-called-once}
|
|
-O2
|
|
|
|
*/
|
|
|
|
.file "valop.c"
|
|
.section .debug_abbrev,"",@progbits
|
|
.Ldebug_abbrev0:
|
|
.section .debug_info,"",@progbits
|
|
.Ldebug_info0:
|
|
.section .debug_line,"",@progbits
|
|
.Ldebug_line0:
|
|
.text
|
|
.Ltext0:
|
|
.p2align 4,,15
|
|
.globl func
|
|
.type func, @function
|
|
func:
|
|
.LFB0:
|
|
.file 1 "valop.c"
|
|
.loc 1 4 0
|
|
.cfi_startproc
|
|
.LVL0:
|
|
pushl %ebp
|
|
.cfi_def_cfa_offset 8
|
|
movl %esp, %ebp
|
|
.cfi_offset 5, -8
|
|
.cfi_def_cfa_register 5
|
|
.loc 1 4 0
|
|
movl 8(%ebp), %eax
|
|
.LVL1:
|
|
.loc 1 9 0
|
|
testb $1, %al
|
|
jne .L5
|
|
.LVL2:
|
|
.loc 1 16 0
|
|
addl $2147483624, %eax
|
|
.LVL3:
|
|
.loc 1 13 0
|
|
movl $24, %edx
|
|
.LVL4:
|
|
.loc 1 16 0
|
|
imull %edx, %eax
|
|
.LVL5:
|
|
.loc 1 20 0
|
|
popl %ebp
|
|
.cfi_remember_state
|
|
.cfi_restore 5
|
|
.cfi_def_cfa 4, 4
|
|
ret
|
|
.LVL6:
|
|
.p2align 4,,7
|
|
.p2align 3
|
|
.L5:
|
|
.cfi_restore_state
|
|
.loc 1 10 0
|
|
subl $2147483626, %eax
|
|
.LVL7:
|
|
.loc 1 5 0
|
|
movl $23, %edx
|
|
.LVL8:
|
|
.loc 1 16 0
|
|
imull %edx, %eax
|
|
.LVL9:
|
|
.loc 1 20 0
|
|
popl %ebp
|
|
.cfi_def_cfa 4, 4
|
|
.cfi_restore 5
|
|
ret
|
|
.cfi_endproc
|
|
.LFE0:
|
|
.size func, .-func
|
|
.p2align 4,,15
|
|
.globl _start
|
|
.type _start, @function
|
|
_start:
|
|
.LFB1:
|
|
.loc 1 23 0
|
|
.cfi_startproc
|
|
.LVL10:
|
|
pushl %ebp
|
|
.cfi_def_cfa_offset 8
|
|
movl %esp, %ebp
|
|
.cfi_offset 5, -8
|
|
.cfi_def_cfa_register 5
|
|
subl $4, %esp
|
|
.loc 1 24 0
|
|
movl $1024, (%esp)
|
|
call func
|
|
.LVL11:
|
|
.loc 1 25 0
|
|
leave
|
|
.cfi_restore 5
|
|
.cfi_def_cfa 4, 4
|
|
ret
|
|
.cfi_endproc
|
|
.LFE1:
|
|
.size _start, .-_start
|
|
.Letext0:
|
|
.section .debug_loc,"",@progbits
|
|
.Ldebug_loc0:
|
|
.LLST0:
|
|
.long .LVL0-.Ltext0
|
|
.long .LVL2-.Ltext0
|
|
.value 0x4
|
|
.byte 0x47
|
|
.byte 0x9f
|
|
.byte 0x93
|
|
.uleb128 0x4
|
|
.long .LVL2-.Ltext0
|
|
.long .LVL4-.Ltext0
|
|
.value 0x4
|
|
.byte 0x48
|
|
.byte 0x9f
|
|
.byte 0x93
|
|
.uleb128 0x4
|
|
.long .LVL4-.Ltext0
|
|
.long .LVL6-.Ltext0
|
|
.value 0x1
|
|
.byte 0x52
|
|
.long .LVL6-.Ltext0
|
|
.long .LVL8-.Ltext0
|
|
.value 0x4
|
|
.byte 0x47
|
|
.byte 0x9f
|
|
.byte 0x93
|
|
.uleb128 0x4
|
|
.long .LVL8-.Ltext0
|
|
.long .LFE0-.Ltext0
|
|
.value 0x1
|
|
.byte 0x52
|
|
.long 0x0
|
|
.long 0x0
|
|
.LLST1:
|
|
.long .LVL0-.Ltext0
|
|
.long .LVL2-.Ltext0
|
|
.value 0x6
|
|
.byte 0x9e
|
|
.uleb128 0x4
|
|
.long 0x7fffffff
|
|
.long .LVL2-.Ltext0
|
|
.long .LVL6-.Ltext0
|
|
.value 0x6
|
|
.byte 0x9e
|
|
.uleb128 0x4
|
|
.long 0x80000000
|
|
.long .LVL6-.Ltext0
|
|
.long .LFE0-.Ltext0
|
|
.value 0x6
|
|
.byte 0x9e
|
|
.uleb128 0x4
|
|
.long 0x7fffffff
|
|
.long 0x0
|
|
.long 0x0
|
|
.LLST2:
|
|
.long .LVL1-.Ltext0
|
|
.long .LVL3-.Ltext0
|
|
.value 0x1
|
|
.byte 0x50
|
|
.long .LVL3-.Ltext0
|
|
.long .LVL5-.Ltext0
|
|
.value 0x1
|
|
.byte 0x50
|
|
.long .LVL6-.Ltext0
|
|
.long .LVL7-.Ltext0
|
|
.value 0x1
|
|
.byte 0x50
|
|
.long .LVL7-.Ltext0
|
|
.long .LVL9-.Ltext0
|
|
.value 0x1
|
|
.byte 0x50
|
|
.long 0x0
|
|
.long 0x0
|
|
.LLST3:
|
|
.long .LVL10-.Ltext0
|
|
.long .LVL11-1-.Ltext0
|
|
.value 0x2
|
|
.byte 0x91
|
|
.sleb128 0
|
|
.long 0x0
|
|
.long 0x0
|
|
.LLST4:
|
|
.long .LVL10-.Ltext0
|
|
.long .LVL11-1-.Ltext0
|
|
.value 0x2
|
|
.byte 0x91
|
|
.sleb128 4
|
|
.long 0x0
|
|
.long 0x0
|
|
.section .debug_info
|
|
.long 0xd4
|
|
.value 0x3
|
|
.long .Ldebug_abbrev0
|
|
.byte 0x4
|
|
.uleb128 0x1
|
|
.long .LASF9
|
|
.byte 0x1
|
|
.long .LASF10
|
|
.long .LASF11
|
|
.long .Ltext0
|
|
.long .Letext0
|
|
.long .Ldebug_line0
|
|
.uleb128 0x2
|
|
.byte 0x1
|
|
.long .LASF3
|
|
.byte 0x1
|
|
.byte 0x3
|
|
.byte 0x1
|
|
.long 0x7c
|
|
.long .LFB0
|
|
.long .LFE0
|
|
.byte 0x1
|
|
.byte 0x9c
|
|
.long 0x7c
|
|
.uleb128 0x3
|
|
.string "arg"
|
|
.byte 0x1
|
|
.byte 0x3
|
|
.long 0x7c
|
|
.byte 0x2
|
|
.byte 0x91
|
|
.sleb128 0
|
|
.uleb128 0x4
|
|
.long .LASF0
|
|
.byte 0x1
|
|
.byte 0x5
|
|
.long 0x7c
|
|
.long .LLST0
|
|
.uleb128 0x4
|
|
.long .LASF1
|
|
.byte 0x1
|
|
.byte 0x6
|
|
.long 0x7c
|
|
.long .LLST1
|
|
.uleb128 0x4
|
|
.long .LASF2
|
|
.byte 0x1
|
|
.byte 0x7
|
|
.long 0x7c
|
|
.long .LLST2
|
|
.byte 0x0
|
|
.uleb128 0x5
|
|
.byte 0x4
|
|
.byte 0x7
|
|
.long .LASF7
|
|
.uleb128 0x2
|
|
.byte 0x1
|
|
.long .LASF4
|
|
.byte 0x1
|
|
.byte 0x16
|
|
.byte 0x1
|
|
.long 0xbd
|
|
.long .LFB1
|
|
.long .LFE1
|
|
.byte 0x1
|
|
.byte 0x9c
|
|
.long 0xbd
|
|
.uleb128 0x6
|
|
.long .LASF5
|
|
.byte 0x1
|
|
.byte 0x16
|
|
.long 0xbd
|
|
.long .LLST3
|
|
.uleb128 0x6
|
|
.long .LASF6
|
|
.byte 0x1
|
|
.byte 0x16
|
|
.long 0xc4
|
|
.long .LLST4
|
|
.byte 0x0
|
|
.uleb128 0x7
|
|
.byte 0x4
|
|
.byte 0x5
|
|
.string "int"
|
|
.uleb128 0x8
|
|
.byte 0x4
|
|
.long 0xca
|
|
.uleb128 0x8
|
|
.byte 0x4
|
|
.long 0xd0
|
|
.uleb128 0x5
|
|
.byte 0x1
|
|
.byte 0x6
|
|
.long .LASF8
|
|
.byte 0x0
|
|
.section .debug_abbrev
|
|
.uleb128 0x1
|
|
.uleb128 0x11
|
|
.byte 0x1
|
|
.uleb128 0x25
|
|
.uleb128 0xe
|
|
.uleb128 0x13
|
|
.uleb128 0xb
|
|
.uleb128 0x3
|
|
.uleb128 0xe
|
|
.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 0x34
|
|
.byte 0x0
|
|
.uleb128 0x3
|
|
.uleb128 0xe
|
|
.uleb128 0x3a
|
|
.uleb128 0xb
|
|
.uleb128 0x3b
|
|
.uleb128 0xb
|
|
.uleb128 0x49
|
|
.uleb128 0x13
|
|
.uleb128 0x2
|
|
.uleb128 0x6
|
|
.byte 0x0
|
|
.byte 0x0
|
|
.uleb128 0x5
|
|
.uleb128 0x24
|
|
.byte 0x0
|
|
.uleb128 0xb
|
|
.uleb128 0xb
|
|
.uleb128 0x3e
|
|
.uleb128 0xb
|
|
.uleb128 0x3
|
|
.uleb128 0xe
|
|
.byte 0x0
|
|
.byte 0x0
|
|
.uleb128 0x6
|
|
.uleb128 0x5
|
|
.byte 0x0
|
|
.uleb128 0x3
|
|
.uleb128 0xe
|
|
.uleb128 0x3a
|
|
.uleb128 0xb
|
|
.uleb128 0x3b
|
|
.uleb128 0xb
|
|
.uleb128 0x49
|
|
.uleb128 0x13
|
|
.uleb128 0x2
|
|
.uleb128 0x6
|
|
.byte 0x0
|
|
.byte 0x0
|
|
.uleb128 0x7
|
|
.uleb128 0x24
|
|
.byte 0x0
|
|
.uleb128 0xb
|
|
.uleb128 0xb
|
|
.uleb128 0x3e
|
|
.uleb128 0xb
|
|
.uleb128 0x3
|
|
.uleb128 0x8
|
|
.byte 0x0
|
|
.byte 0x0
|
|
.uleb128 0x8
|
|
.uleb128 0xf
|
|
.byte 0x0
|
|
.uleb128 0xb
|
|
.uleb128 0xb
|
|
.uleb128 0x49
|
|
.uleb128 0x13
|
|
.byte 0x0
|
|
.byte 0x0
|
|
.byte 0x0
|
|
.section .debug_pubnames,"",@progbits
|
|
.long 0x20
|
|
.value 0x2
|
|
.long .Ldebug_info0
|
|
.long 0xd8
|
|
.long 0x25
|
|
.string "func"
|
|
.long 0x83
|
|
.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
|
|
.LASF7:
|
|
.string "unsigned int"
|
|
.LASF3:
|
|
.string "func"
|
|
.LASF0:
|
|
.string "uses_stack_op"
|
|
.LASF5:
|
|
.string "argc"
|
|
.LASF10:
|
|
.string "valop.c"
|
|
.LASF2:
|
|
.string "result"
|
|
.LASF8:
|
|
.string "char"
|
|
.LASF9:
|
|
.string "GNU C 4.5.0 20090818 (experimental) [var-tracking-assignments-branch revision 150964]"
|
|
.LASF4:
|
|
.string "main"
|
|
.LASF11:
|
|
.string "/tmp"
|
|
.LASF1:
|
|
.string "uses_lit_op"
|
|
.LASF6:
|
|
.string "argv"
|
|
.ident "GCC: (GNU) 4.5.0 20090818 (experimental) [var-tracking-assignments-branch revision 150964]"
|
|
.section .note.GNU-stack,"",@progbits
|