| # An example of a function which has been split into two parts. Roughly |
| # corresponds to this C code. |
| # int baz(); |
| # int bar() { return 47; } |
| # int foo(int flag) { return flag ? bar() : baz(); } |
| # The function bar has been placed "in the middle" of foo, and the function |
| # entry point is deliberately not its lowest address. |
| |
| # RUN: split-file %s %t |
| # RUN: llvm-mc -triple x86_64-pc-linux -filetype=obj %t/input.s -o %t/input.o |
| # RUN: %lldb %t/input.o -s %t/commands -o exit | FileCheck %s |
| |
| #--- commands |
| |
| image lookup -v -n foo |
| # CHECK-LABEL: image lookup -v -n foo |
| # CHECK: 1 match found in {{.*}} |
| # CHECK: Summary: input.o`foo |
| # CHECK: Function: id = {{.*}}, name = "foo", ranges = [0x0000000000000000-0x000000000000000f)[0x0000000000000015-0x000000000000001d) |
| |
| image lookup -v --regex -n '^foo$' |
| # CHECK-LABEL: image lookup -v --regex -n '^foo$' |
| # CHECK: 1 match found in {{.*}} |
| # CHECK: Summary: input.o`foo |
| # CHECK: Function: id = {{.*}}, name = "foo", ranges = [0x0000000000000000-0x000000000000000f)[0x0000000000000015-0x000000000000001d) |
| |
| expr -- &foo |
| # CHECK-LABEL: expr -- &foo |
| # CHECK: (void (*)()) $0 = 0x0000000000000007 |
| |
| breakpoint set --name foo --skip-prologue false |
| # CHECK-LABEL: breakpoint set --name foo --skip-prologue false |
| # CHECK: Breakpoint 1: where = input.o`foo at -:1, address = 0x0000000000000007 |
| |
| breakpoint set --name foo --skip-prologue true |
| # CHECK-LABEL: breakpoint set --name foo --skip-prologue true |
| # CHECK: Breakpoint 2: where = input.o`foo + 1 at -:2, address = 0x0000000000000008 |
| |
| #--- input.s |
| .text |
| |
| .file 0 "." "-" |
| foo.__part.1: |
| .loc 0 10 |
| .cfi_startproc |
| callq bar |
| jmp foo.__part.3 |
| .Lfoo.__part.1_end: |
| .size foo.__part.1, .Lfoo.__part.1_end-foo.__part.1 |
| .cfi_endproc |
| |
| .type foo,@function |
| foo: |
| .loc 0 1 |
| .cfi_startproc |
| nop |
| .loc 0 2 prologue_end |
| cmpl $0, %edi |
| je foo.__part.2 |
| jmp foo.__part.1 |
| .cfi_endproc |
| .Lfoo_end: |
| .size foo, .Lfoo_end-foo |
| |
| bar: |
| .cfi_startproc |
| .loc 0 100 |
| movl $47, %eax |
| retq |
| .cfi_endproc |
| .Lbar_end: |
| .size bar, .Lbar_end-bar |
| |
| foo.__part.2: |
| .loc 0 20 |
| .cfi_startproc |
| callq baz |
| jmp foo.__part.3 |
| .Lfoo.__part.2_end: |
| .size foo.__part.2, .Lfoo.__part.2_end-foo.__part.2 |
| .cfi_endproc |
| |
| foo.__part.3: |
| .loc 0 30 |
| .cfi_startproc |
| retq |
| .Lfoo.__part.3_end: |
| .size foo.__part.3, .Lfoo.__part.3_end-foo.__part.3 |
| .cfi_endproc |
| |
| |
| .section .debug_abbrev,"",@progbits |
| .byte 1 # Abbreviation Code |
| .byte 17 # DW_TAG_compile_unit |
| .byte 1 # DW_CHILDREN_yes |
| .byte 37 # DW_AT_producer |
| .byte 8 # DW_FORM_string |
| .byte 19 # DW_AT_language |
| .byte 5 # DW_FORM_data2 |
| .byte 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .byte 85 # DW_AT_ranges |
| .byte 35 # DW_FORM_rnglistx |
| .byte 116 # DW_AT_rnglists_base |
| .byte 23 # DW_FORM_sec_offset |
| .byte 16 # DW_AT_stmt_list |
| .byte 23 # DW_FORM_sec_offset |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 2 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 0 # DW_CHILDREN_no |
| .byte 17 # DW_AT_low_pc |
| .byte 1 # DW_FORM_addr |
| .byte 18 # DW_AT_high_pc |
| .byte 1 # DW_FORM_addr |
| .byte 3 # DW_AT_name |
| .byte 8 # DW_FORM_string |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 3 # Abbreviation Code |
| .byte 46 # DW_TAG_subprogram |
| .byte 0 # DW_CHILDREN_no |
| .byte 85 # DW_AT_ranges |
| .byte 35 # DW_FORM_rnglistx |
| .byte 64 # DW_AT_frame_base |
| .byte 24 # DW_FORM_exprloc |
| .byte 3 # DW_AT_name |
| .byte 8 # DW_FORM_string |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 0 # EOM(3) |
| |
| .section .debug_info,"",@progbits |
| .Lcu_begin0: |
| .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit |
| .Ldebug_info_start0: |
| .short 5 # DWARF version number |
| .byte 1 # DWARF Unit Type |
| .byte 8 # Address Size (in bytes) |
| .long .debug_abbrev # Offset Into Abbrev. Section |
| .byte 1 # Abbrev [1] DW_TAG_compile_unit |
| .asciz "Hand-written DWARF" # DW_AT_producer |
| .short 29 # DW_AT_language |
| .quad 0 # DW_AT_low_pc |
| .byte 1 # DW_AT_ranges |
| .long .Lrnglists_table_base0 # DW_AT_rnglists_base |
| .long .Lline_table_start0 # DW_AT_stmt_list |
| .byte 2 # Abbrev [2] DW_TAG_subprogram |
| .quad bar # DW_AT_low_pc |
| .quad .Lbar_end # DW_AT_high_pc |
| .asciz "bar" # DW_AT_name |
| .byte 3 # Abbrev [3] DW_TAG_subprogram |
| .byte 0 # DW_AT_ranges |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| .asciz "foo" # DW_AT_name |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| |
| .section .debug_rnglists,"",@progbits |
| .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length |
| .Ldebug_list_header_start0: |
| .short 5 # Version |
| .byte 8 # Address size |
| .byte 0 # Segment selector size |
| .long 2 # Offset entry count |
| .Lrnglists_table_base0: |
| .long .Ldebug_ranges0-.Lrnglists_table_base0 |
| .long .Ldebug_ranges1-.Lrnglists_table_base0 |
| .Ldebug_ranges0: |
| .byte 6 # DW_RLE_start_end |
| .quad foo |
| .quad .Lfoo_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo.__part.1 |
| .quad .Lfoo.__part.1_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo.__part.2 |
| .quad .Lfoo.__part.2_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo.__part.3 |
| .quad .Lfoo.__part.3_end |
| .byte 0 # DW_RLE_end_of_list |
| .Ldebug_ranges1: |
| .byte 6 # DW_RLE_start_end |
| .quad bar |
| .quad .Lbar_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo.__part.1 |
| .quad .Lfoo.__part.1_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo.__part.2 |
| .quad .Lfoo.__part.2_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo.__part.3 |
| .quad .Lfoo.__part.3_end |
| .byte 6 # DW_RLE_start_end |
| .quad foo |
| .quad .Lfoo_end |
| .byte 0 # DW_RLE_end_of_list |
| .Ldebug_list_header_end0: |
| |
| .section ".note.GNU-stack","",@progbits |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |
