| /* |
| Copyright 2009-2013 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 |
