| # REQUIRES: x86 |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux -dwarf-version=5 %s -o %t.o |
| # RUN: not ld.lld %t.o -o %t1 2>&1 | FileCheck %s |
| |
| # When compiling with -ffunction-sections, .debug_line may contain descriptions |
| # of locations from the different text sections. Until relocated such |
| # descriptions might contain overlapping offsets. Check LLD is able to report |
| # the error locations correctly in this case. |
| |
| # CHECK: error: undefined symbol: foo() |
| # CHECK-NEXT: >>> referenced by test.cpp:2 |
| # CHECK-NEXT: >>> {{.*}}.o:(bar()) |
| # CHECK-NEXT: >>> referenced by test.cpp:3 |
| # CHECK-NEXT: >>> {{.*}}.o:(baz()) |
| |
| # The code below is the reduced version of the output |
| # from the following invocation and source: |
| # |
| # // test.cpp: |
| # int foo(); |
| # int bar() { return foo(); } |
| # int baz() { return foo(); } |
| # |
| # clang -gdwarf-5 -ffunction-sections test.cpp -o test.s -S |
| |
| .text |
| .file "test.cpp" |
| .section .text._Z3barv,"ax",@progbits |
| .globl _Z3barv |
| .type _Z3barv,@function |
| _Z3barv: |
| .Lfunc_begin0: |
| .file 0 "/path" "test.cpp" md5 0x9ff11a8404ab4d032ee2dd4f5f8c4140 |
| .loc 0 2 0 # test.cpp:2:0 |
| .loc 0 2 20 prologue_end # test.cpp:2:20 |
| callq _Z3foov |
| .loc 0 2 13 is_stmt 0 # test.cpp:2:13 |
| .Lfunc_end0: |
| .size _Z3barv, .Lfunc_end0-_Z3barv |
| # -- End function |
| .section .text._Z3bazv,"ax",@progbits |
| .globl _Z3bazv # -- Begin function _Z3bazv |
| .type _Z3bazv,@function |
| _Z3bazv: # @_Z3bazv |
| .Lfunc_begin1: |
| .loc 0 3 0 is_stmt 1 # test.cpp:3:0 |
| .loc 0 3 20 prologue_end # test.cpp:3:20 |
| callq _Z3foov |
| .loc 0 3 13 is_stmt 0 # test.cpp:3:13 |
| .Lfunc_end1: |
| .size _Z3bazv, .Lfunc_end1-_Z3bazv |
| |
| .section .debug_str,"MS",@progbits,1 |
| .Linfo_string0: |
| .asciz "stub" |
| |
| .section .debug_str_offsets,"",@progbits |
| .long 8 |
| .short 5 |
| .short 0 |
| .Lstr_offsets_base0: |
| .long .Linfo_string0 |
| |
| .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 37 # DW_FORM_strx1 |
| .byte 19 # DW_AT_language |
| .byte 5 # DW_FORM_data2 |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 114 # DW_AT_str_offsets_base |
| .byte 23 # DW_FORM_sec_offset |
| .byte 16 # DW_AT_stmt_list |
| .byte 23 # DW_FORM_sec_offset |
| .byte 27 # DW_AT_comp_dir |
| .byte 37 # DW_FORM_strx1 |
| .byte 115 # DW_AT_addr_base |
| .byte 23 # DW_FORM_sec_offset |
| .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 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 27 # DW_FORM_addrx |
| .byte 18 # DW_AT_high_pc |
| .byte 6 # DW_FORM_data4 |
| .byte 64 # DW_AT_frame_base |
| .byte 24 # DW_FORM_exprloc |
| .byte 110 # DW_AT_linkage_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 58 # DW_AT_decl_file |
| .byte 11 # DW_FORM_data1 |
| .byte 59 # DW_AT_decl_line |
| .byte 11 # DW_FORM_data1 |
| .byte 73 # DW_AT_type |
| .byte 19 # DW_FORM_ref4 |
| .byte 63 # DW_AT_external |
| .byte 25 # DW_FORM_flag_present |
| .byte 0 # EOM(1) |
| .byte 0 # EOM(2) |
| .byte 3 # Abbreviation Code |
| .byte 36 # DW_TAG_base_type |
| .byte 0 # DW_CHILDREN_no |
| .byte 3 # DW_AT_name |
| .byte 37 # DW_FORM_strx1 |
| .byte 62 # DW_AT_encoding |
| .byte 11 # DW_FORM_data1 |
| .byte 11 # DW_AT_byte_size |
| .byte 11 # DW_FORM_data1 |
| .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] 0xc:0x44 DW_TAG_compile_unit |
| .byte 0 # DW_AT_producer |
| .short 4 # DW_AT_language |
| .byte 0 # DW_AT_name |
| .long .Lstr_offsets_base0 # DW_AT_str_offsets_base |
| .long .Lline_table_start0 # DW_AT_stmt_list |
| .byte 2 # DW_AT_comp_dir |
| .long 0 # DW_AT_addr_base |
| .quad 0 # DW_AT_low_pc |
| .byte 0 # DW_AT_ranges |
| .long 0 # DW_AT_rnglists_base |
| .byte 2 # Abbrev [2] 0x2b:0x10 DW_TAG_subprogram |
| .byte 0 # DW_AT_low_pc |
| .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| .byte 3 # DW_AT_linkage_name |
| .byte 0 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 2 # DW_AT_decl_line |
| .long 75 # DW_AT_type |
| # DW_AT_external |
| .byte 2 # Abbrev [2] 0x3b:0x10 DW_TAG_subprogram |
| .byte 1 # DW_AT_low_pc |
| .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc |
| .byte 1 # DW_AT_frame_base |
| .byte 86 |
| .byte 6 # DW_AT_linkage_name |
| .byte 0 # DW_AT_name |
| .byte 1 # DW_AT_decl_file |
| .byte 3 # DW_AT_decl_line |
| .long 75 # DW_AT_type |
| # DW_AT_external |
| .byte 3 # Abbrev [3] 0x4b:0x4 DW_TAG_base_type |
| .byte 0 # DW_AT_name |
| .byte 5 # DW_AT_encoding |
| .byte 4 # DW_AT_byte_size |
| .byte 0 # End Of Children Mark |
| .Ldebug_info_end0: |
| |
| .section .debug_line,"",@progbits |
| .Lline_table_start0: |