| # 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 /dev/null 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: |