# REQUIRES: system-linux # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o # RUN: %clang %cflags %t1.o -o %t.exe -Wl,-q # RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe | FileCheck --check-prefix=PRECHECK %s # RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt | FileCheck --check-prefix=POSTCHECK %s # PRECHECK: DW_AT_high_pc [DW_FORM_udata] (15) # PRECHECK-NEXT: DW_AT_name [DW_FORM_strp] # PRECHECK-SAME: "main.cpp" # POSTCHECK: DW_AT_ranges [DW_FORM_sec_offset] # POSTCHECK-NEXT: [ # POSTCHECK-NEXT: DW_AT_name [DW_FORM_strp] # POSTCHECK-SAME: "main.cpp" ## Testing that BOLT transforms DW_AT_high_pc of form DW_FORM_udata correctly into DW_AT_ranges. ## Manually changed so that DW_AT_high_pc is DW_FORM_udata, and that DW_AT_name is after it. # int main() { # return 0; # } .text .file "main.cpp" .globl main # -- Begin function main .p2align 4, 0x90 .type main,@function main: # @main .Lfunc_begin0: .file 1 "" "main.cpp" .loc 1 1 0 # main.cpp:1:0 .cfi_startproc # %bb.0: # %entry pushq %rbp .cfi_def_cfa_offset 16 .cfi_offset %rbp, -16 movq %rsp, %rbp .cfi_def_cfa_register %rbp movl $0, -4(%rbp) .Ltmp0: .loc 1 2 1 prologue_end # main.cpp:2:1 xorl %eax, %eax popq %rbp .cfi_def_cfa %rsp, 8 retq .Ltmp1: .Lfunc_end0: .size main, .Lfunc_end0-main .cfi_endproc # -- End function .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 14 # DW_FORM_strp .byte 19 # DW_AT_language .byte 5 # DW_FORM_data2 .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 15 # DW_FORM_udata .byte 3 # DW_AT_name .byte 14 # DW_FORM_strp .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 64 # DW_AT_frame_base .byte 24 # DW_FORM_exprloc .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 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 14 # DW_FORM_strp .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 4 # DWARF version number .long .debug_abbrev # Offset Into Abbrev. Section .byte 8 # Address Size (in bytes) .byte 1 # Abbrev [1] 0xb:0x40 DW_TAG_compile_unit .long .Linfo_string0 # DW_AT_producer .short 33 # DW_AT_language .long .Lline_table_start0 # DW_AT_stmt_list .long .Linfo_string2 # DW_AT_comp_dir .quad .Lfunc_begin0 # DW_AT_low_pc .byte .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .long .Linfo_string1 # DW_AT_name .byte 2 # Abbrev [2] 0x2a:0x19 DW_TAG_subprogram .quad .Lfunc_begin0 # DW_AT_low_pc .long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc .byte 1 # DW_AT_frame_base .byte 86 .long .Linfo_string3 # DW_AT_name .byte 1 # DW_AT_decl_file .byte 1 # DW_AT_decl_line .long 64 # DW_AT_type # DW_AT_external .byte 3 # Abbrev [3] 0x43:0x7 DW_TAG_base_type .long .Linfo_string4 # 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_str,"MS",@progbits,1 .Linfo_string0: .asciz "clang" # string offset=0 .Linfo_string1: .asciz "main.cpp" # string offset=134 .Linfo_string2: .asciz "test" # string offset=143 .Linfo_string3: .asciz "main" # string offset=186 .Linfo_string4: .asciz "int" # string offset=191 .ident "clang" .section ".note.GNU-stack","",@progbits .addrsig .section .debug_line,"",@progbits .Lline_table_start0: