# Show that multiple CUs can have a single common .debug_abbrev table. This can # occur due to e.g. LTO. # REQUIRES: x86-registered-target # RUN: llvm-mc --filetype=obj --triple=x86_64-pc-linux %s -o %t.o # RUN: llvm-symbolizer --obj=%t.o 0 16 --functions=short | FileCheck %s # CHECK: foo # CHECK-NEXT: foo.c:1:0 # CHECK: bar # CHECK-NEXT: bar.c:2:0 .global foo .type foo,@function foo: .Lfunc_begin0: .file 1 "." "foo.c" .loc 1 1 0 ret .Lfunc_end0: .global bar .p2align 4, 0x90 .type bar,@function bar: .Lfunc_begin1: .file 2 "." "bar.c" .loc 2 2 0 ret .Lfunc_end1: .section .debug_str,"MS",@progbits,1 .Linfo_string1: .asciz "foo.c" .Linfo_string2: .asciz "." .Linfo_string3: .asciz "foo" .Linfo_string4: .asciz "bar.c" .Linfo_string5: .asciz "bar" # Regular .debug_abbrev section with CU and subprogram, but duplicated, with second # half reordered slightly, to show that the correct abbrev is being referenced. .section .debug_abbrev,"",@progbits .byte 1 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 1 # DW_CHILDREN_yes .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 14 # DW_FORM_strp .byte 17 # DW_AT_low_pc .byte 1 # DW_FORM_addr .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .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 6 # DW_FORM_data4 .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 0 # EOM(1) .byte 0 # EOM(2) # Second-half starts here. .byte 3 # Abbreviation Code .byte 17 # DW_TAG_compile_unit .byte 1 # DW_CHILDREN_yes .byte 16 # DW_AT_stmt_list .byte 23 # DW_FORM_sec_offset .byte 27 # DW_AT_comp_dir .byte 14 # DW_FORM_strp .byte 17 # DW_AT_low_pc .byte 1 # DW_FORM_addr .byte 18 # DW_AT_high_pc .byte 6 # DW_FORM_data4 .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 4 # 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 6 # DW_FORM_data4 .byte 58 # DW_AT_decl_file .byte 11 # DW_FORM_data1 .byte 59 # DW_AT_decl_line .byte 11 # DW_FORM_data1 .byte 63 # DW_AT_external .byte 25 # DW_FORM_flag_present .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .byte 0 # EOM(1) .byte 0 # EOM(2) .byte 0 # EOM(3) .section .debug_info,"",@progbits # First CU table. .long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit .Ldebug_info_start0: .short 4 # DWARF version number .long .debug_abbrev # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 1 # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit .long .Linfo_string1 # DW_AT_name .long .Lline_table_start0 # DW_AT_stmt_list .long .Linfo_string2 # DW_AT_comp_dir .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .byte 2 # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .long .Linfo_string3 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line # DW_AT_external .byte 0 # End Of Children Mark .Ldebug_info_end0: # Second CU table. .long .Ldebug_info_end1-.Ldebug_info_start1 # Length of Unit .Ldebug_info_start1: .short 4 # DWARF version number .long .debug_abbrev # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 3 # Abbrev [1] 0xb:0x35 DW_TAG_compile_unit .long .Lline_table_start0 # DW_AT_stmt_list .long .Linfo_string2 # DW_AT_comp_dir .quad .Lfunc_begin1 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc .long .Linfo_string4 # DW_AT_name .byte 4 # Abbrev [2] 0x2a:0x15 DW_TAG_subprogram .quad .Lfunc_begin1 # DW_AT_low_pc .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line # DW_AT_external .long .Linfo_string5 # DW_AT_name .byte 0 # End Of Children Mark .Ldebug_info_end1: .section .debug_line,"",@progbits .Lline_table_start0: