From 95578294384814bba9d0594966a57225b57bcc7a Mon Sep 17 00:00:00 2001 From: Sriraman Tallam Date: Fri, 8 Jan 2021 21:52:34 -0800 Subject: [PATCH] This adds a new test checking llvm-symbolizer with an object built with basic block sections. Build a object with -fbasic-block-sections and reorder the basic blocks to be non-contiguous. Then check if llvm-symbolizer correctly reports the symbolized addresses. Included the source to build the object with command lines. Differential Revision: https://reviews.llvm.org/D91678 --- .../llvm-symbolizer-bbsections-test.s | 594 ++++++++++++++++++ 1 file changed, 594 insertions(+) create mode 100644 test/DebugInfo/llvm-symbolizer-bbsections-test.s diff --git a/test/DebugInfo/llvm-symbolizer-bbsections-test.s b/test/DebugInfo/llvm-symbolizer-bbsections-test.s new file mode 100644 index 00000000000..822ce262862 --- /dev/null +++ b/test/DebugInfo/llvm-symbolizer-bbsections-test.s @@ -0,0 +1,594 @@ +# REQUIRES: x86-registered-target +# RUN: clang -c %s -o %t +# RUN: llvm-symbolizer --obj=%t 0x30 0x20 0x6c 0xf | FileCheck %s + +# CHECK: main +# CHECK-NEXT: llvm-symbolizer-bbsections-test.c:13 +# CHECK: g +# CHECK-NEXT: llvm-symbolizer-bbsections-test.c:5 +# CHECK: main +# CHECK-NEXT: llvm-symbolizer-bbsections-test.c:15 +# CHECK: main +# CHECK-NEXT: llvm-symbolizer-bbsections-test.c:18 +# How to generate this file: +# int f(int a) { +# return a + 1; +# } +# +# int g(int a) { +# return a + 2; +# } +# +# int h(int a) { +# return a + 3; +# } +# +# // Use simple control flow to generate lots of basic block sections. +# int main(int argc, char *argv[]) { +# if (argc > 10) +# return f(argc); +# else if (argc > 8) +# return g(argc); +# else if (argc > 4) +# return h(argc); +# return 0; +# } +# +# $ clang -S -fbasic-block-sections=all llvm-symbolizer-bbsections-test.cc +# Manually reororder the sections to place them in this order: +# _Z1fi +# main.__part.4 +# _Z1gi +# main +# _Z1hi +# main.__part.5 +# (rest) +# Strip the .section .text directives to have all the functions in the same +# section. +# This ensures the basic blocks are reordered non-contiguous exactly like +# how a linker would do it. + .text + .file "llvm-symbolizer-bbsections-test.c" + #.section .text._Z1fi,"ax",@progbits + .globl _Z1fi # -- Begin function _Z1fi + .p2align 4, 0x90 + .type _Z1fi,@function +_Z1fi: # @_Z1fi +.Lfunc_begin0: + .file 1 "Examples" "llvm-symbolizer-bbsections-test.c" + .loc 1 1 0 # llvm-symbolizer-bbsections-test.c:1:0 + .cfi_startproc +# %bb.0: + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + movl %edi, -4(%rbp) +.Ltmp0: + .loc 1 2 10 prologue_end # llvm-symbolizer-bbsections-test.c:2:10 + movl -4(%rbp), %eax + .loc 1 2 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:2:12 + addl $1, %eax + .loc 1 2 3 # llvm-symbolizer-bbsections-test.c:2:3 + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp1: + .cfi_endproc +.Lfunc_end0: + .size _Z1fi, .Lfunc_end0-_Z1fi + # -- End function + #.section text.main,"ax",@progbits,unique,4 +main.__part.4: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 18 17 is_stmt 1 # llvm-symbolizer-bbsections-test.c:18:17 + cmpl $4, -8(%rbp) +.Ltmp9: + .loc 1 18 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:18:12 + jle main.__part.6 + jmp main.__part.5 +.LBB_END3_4: + .size main.__part.4, .LBB_END3_4-main.__part.4 + .cfi_endproc + + #.section .text._Z1gi,"ax",@progbits + .globl _Z1gi # -- Begin function _Z1gi + .p2align 4, 0x90 + .type _Z1gi,@function +_Z1gi: # @_Z1gi +.Lfunc_begin1: + .loc 1 5 0 is_stmt 1 # llvm-symbolizer-bbsections-test.c:5:0 + .cfi_startproc +# %bb.0: + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + movl %edi, -4(%rbp) +.Ltmp2: + .loc 1 6 10 prologue_end # llvm-symbolizer-bbsections-test.c:6:10 + movl -4(%rbp), %eax + .loc 1 6 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:6:12 + addl $2, %eax + .loc 1 6 3 # llvm-symbolizer-bbsections-test.c:6:3 + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp3: + .cfi_endproc +.Lfunc_end1: + .size _Z1gi, .Lfunc_end1-_Z1gi + # -- End function + #.section .text.main,"ax",@progbits + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin3: + .loc 1 13 0 is_stmt 1 # llvm-symbolizer-bbsections-test.c:13:0 + .cfi_startproc +# %bb.0: + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + subq $16, %rsp + movl $0, -4(%rbp) + movl %edi, -8(%rbp) + movq %rsi, -16(%rbp) +.Ltmp6: + .loc 1 14 12 prologue_end # llvm-symbolizer-bbsections-test.c:14:12 + cmpl $10, -8(%rbp) +.Ltmp7: + .loc 1 14 7 is_stmt 0 # llvm-symbolizer-bbsections-test.c:14:7 + jle main.__part.2 + jmp main.__part.1 + .cfi_endproc + #.section .text._Z1hi,"ax",@progbits + .globl _Z1hi # -- Begin function _Z1hi + .p2align 4, 0x90 + .type _Z1hi,@function +_Z1hi: # @_Z1hi +.Lfunc_begin2: + .loc 1 9 0 is_stmt 1 # llvm-symbolizer-bbsections-test.c:9:0 + .cfi_startproc +# %bb.0: + pushq %rbp + .cfi_def_cfa_offset 16 + .cfi_offset %rbp, -16 + movq %rsp, %rbp + .cfi_def_cfa_register %rbp + movl %edi, -4(%rbp) +.Ltmp4: + .loc 1 10 10 prologue_end # llvm-symbolizer-bbsections-test.c:10:10 + movl -4(%rbp), %eax + .loc 1 10 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:10:12 + addl $3, %eax + .loc 1 10 3 # llvm-symbolizer-bbsections-test.c:10:3 + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp5: + .cfi_endproc +.Lfunc_end2: + .size _Z1hi, .Lfunc_end2-_Z1hi + # -- End function + #.section .text.main,"ax",@progbits,unique,5 +main.__part.5: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 19 14 is_stmt 1 # llvm-symbolizer-bbsections-test.c:19:14 + movl -8(%rbp), %edi + .loc 1 19 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:19:12 + callq _Z1hi + .loc 1 19 5 # llvm-symbolizer-bbsections-test.c:19:5 + movl %eax, -4(%rbp) + jmp main.__part.9 +.Ltmp10: +.LBB_END3_5: + .size main.__part.5, .LBB_END3_5-main.__part.5 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,1 +main.__part.1: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 15 14 is_stmt 1 # llvm-symbolizer-bbsections-test.c:15:14 + movl -8(%rbp), %edi + .loc 1 15 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:15:12 + callq _Z1fi + .loc 1 15 5 # llvm-symbolizer-bbsections-test.c:15:5 + movl %eax, -4(%rbp) + jmp main.__part.9 +.LBB_END3_1: + .size main.__part.1, .LBB_END3_1-main.__part.1 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,2 +main.__part.2: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 16 17 is_stmt 1 # llvm-symbolizer-bbsections-test.c:16:17 + cmpl $8, -8(%rbp) +.Ltmp8: + .loc 1 16 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:16:12 + jle main.__part.4 + jmp main.__part.3 +.LBB_END3_2: + .size main.__part.2, .LBB_END3_2-main.__part.2 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,3 +main.__part.3: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 17 14 is_stmt 1 # llvm-symbolizer-bbsections-test.c:17:14 + movl -8(%rbp), %edi + .loc 1 17 12 is_stmt 0 # llvm-symbolizer-bbsections-test.c:17:12 + callq _Z1gi + .loc 1 17 5 # llvm-symbolizer-bbsections-test.c:17:5 + movl %eax, -4(%rbp) + jmp main.__part.9 +.LBB_END3_3: + .size main.__part.3, .LBB_END3_3-main.__part.3 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,6 +main.__part.6: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 0 5 # llvm-symbolizer-bbsections-test.c:0:5 + jmp main.__part.7 + jmp main.__part.7 +.LBB_END3_6: + .size main.__part.6, .LBB_END3_6-main.__part.6 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,7 +main.__part.7: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + jmp main.__part.8 + jmp main.__part.8 +.LBB_END3_7: + .size main.__part.7, .LBB_END3_7-main.__part.7 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,8 +main.__part.8: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 20 3 is_stmt 1 # llvm-symbolizer-bbsections-test.c:20:3 + movl $0, -4(%rbp) + jmp main.__part.9 +.LBB_END3_8: + .size main.__part.8, .LBB_END3_8-main.__part.8 + .cfi_endproc + #.section .text.main,"ax",@progbits,unique,9 +main.__part.9: + .cfi_startproc + .cfi_def_cfa %rbp, 16 + .cfi_offset %rbp, -16 + .loc 1 21 1 # llvm-symbolizer-bbsections-test.c:21:1 + movl -4(%rbp), %eax + addq $16, %rsp + popq %rbp + .cfi_def_cfa %rsp, 8 + retq +.Ltmp11: +.LBB_END3_9: + .size main.__part.9, .LBB_END3_9-main.__part.9 + .cfi_endproc + #.section .text.main,"ax",@progbits +.Lfunc_end3: + .size main, .Lfunc_end3-main + # -- 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 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 85 # DW_AT_ranges + .byte 23 # DW_FORM_sec_offset + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 2 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .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 110 # DW_AT_linkage_name + .byte 14 # DW_FORM_strp + .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 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .byte 2 # DW_AT_location + .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 0 # EOM(1) + .byte 0 # EOM(2) + .byte 4 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .byte 85 # DW_AT_ranges + .byte 23 # DW_FORM_sec_offset + .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 5 # 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 6 # Abbreviation Code + .byte 15 # DW_TAG_pointer_type + .byte 0 # DW_CHILDREN_no + .byte 73 # DW_AT_type + .byte 19 # DW_FORM_ref4 + .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:0xea DW_TAG_compile_unit + .long .Linfo_string0 # DW_AT_producer + .short 33 # DW_AT_language + .long .Linfo_string1 # DW_AT_name + .long .Lline_table_start0 # DW_AT_stmt_list + .long .Linfo_string2 # DW_AT_comp_dir + .quad 0 # DW_AT_low_pc + .long .Ldebug_ranges1 # DW_AT_ranges + .byte 2 # Abbrev [2] 0x2a:0x2c 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_linkage_name + .long .Linfo_string4 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 220 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x47:0xe DW_TAG_formal_parameter + .byte 2 # DW_AT_location + .byte 145 + .byte 124 + .long .Linfo_string11 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 220 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 2 # Abbrev [2] 0x56:0x2c DW_TAG_subprogram + .quad .Lfunc_begin1 # DW_AT_low_pc + .long .Lfunc_end1-.Lfunc_begin1 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 86 + .long .Linfo_string6 # DW_AT_linkage_name + .long .Linfo_string7 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 220 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x73:0xe DW_TAG_formal_parameter + .byte 2 # DW_AT_location + .byte 145 + .byte 124 + .long .Linfo_string11 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 220 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 2 # Abbrev [2] 0x82:0x2c DW_TAG_subprogram + .quad .Lfunc_begin2 # DW_AT_low_pc + .long .Lfunc_end2-.Lfunc_begin2 # DW_AT_high_pc + .byte 1 # DW_AT_frame_base + .byte 86 + .long .Linfo_string8 # DW_AT_linkage_name + .long .Linfo_string9 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 9 # DW_AT_decl_line + .long 220 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0x9f:0xe DW_TAG_formal_parameter + .byte 2 # DW_AT_location + .byte 145 + .byte 124 + .long .Linfo_string11 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 9 # DW_AT_decl_line + .long 220 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 4 # Abbrev [4] 0xae:0x2e DW_TAG_subprogram + .long .Ldebug_ranges0 # DW_AT_ranges + .byte 1 # DW_AT_frame_base + .byte 86 + .long .Linfo_string10 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 13 # DW_AT_decl_line + .long 220 # DW_AT_type + # DW_AT_external + .byte 3 # Abbrev [3] 0xbf:0xe DW_TAG_formal_parameter + .byte 2 # DW_AT_location + .byte 145 + .byte 120 + .long .Linfo_string12 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 13 # DW_AT_decl_line + .long 220 # DW_AT_type + .byte 3 # Abbrev [3] 0xcd:0xe DW_TAG_formal_parameter + .byte 2 # DW_AT_location + .byte 145 + .byte 112 + .long .Linfo_string13 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 13 # DW_AT_decl_line + .long 227 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 5 # Abbrev [5] 0xdc:0x7 DW_TAG_base_type + .long .Linfo_string5 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 6 # Abbrev [6] 0xe3:0x5 DW_TAG_pointer_type + .long 232 # DW_AT_type + .byte 6 # Abbrev [6] 0xe8:0x5 DW_TAG_pointer_type + .long 237 # DW_AT_type + .byte 5 # Abbrev [5] 0xed:0x7 DW_TAG_base_type + .long .Linfo_string14 # DW_AT_name + .byte 6 # DW_AT_encoding + .byte 1 # DW_AT_byte_size + .byte 0 # End Of Children Mark +.Ldebug_info_end0: + .section .debug_ranges,"",@progbits +.Ldebug_ranges0: + .quad main.__part.1 + .quad .LBB_END3_1 + .quad main.__part.2 + .quad .LBB_END3_2 + .quad main.__part.3 + .quad .LBB_END3_3 + .quad main.__part.4 + .quad .LBB_END3_4 + .quad main.__part.5 + .quad .LBB_END3_5 + .quad main.__part.6 + .quad .LBB_END3_6 + .quad main.__part.7 + .quad .LBB_END3_7 + .quad main.__part.8 + .quad .LBB_END3_8 + .quad main.__part.9 + .quad .LBB_END3_9 + .quad .Lfunc_begin3 + .quad .Lfunc_end3 + .quad 0 + .quad 0 +.Ldebug_ranges1: + .quad .Lfunc_begin0 + .quad .Lfunc_end0 + .quad .Lfunc_begin1 + .quad .Lfunc_end1 + .quad .Lfunc_begin2 + .quad .Lfunc_end2 + .quad main.__part.1 + .quad .LBB_END3_1 + .quad main.__part.2 + .quad .LBB_END3_2 + .quad main.__part.3 + .quad .LBB_END3_3 + .quad main.__part.4 + .quad .LBB_END3_4 + .quad main.__part.5 + .quad .LBB_END3_5 + .quad main.__part.6 + .quad .LBB_END3_6 + .quad main.__part.7 + .quad .LBB_END3_7 + .quad main.__part.8 + .quad .LBB_END3_8 + .quad main.__part.9 + .quad .LBB_END3_9 + .quad .Lfunc_begin3 + .quad .Lfunc_end3 + .quad 0 + .quad 0 + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 12.0.0 (git@github.com:llvm/llvm-project.git bfa6ca07a8cda0ab889b7fee0b914907ce594e11)" # string offset=0 +.Linfo_string1: + .asciz "llvm-symbolizer-bbsections-test.c" # string offset=101 +.Linfo_string2: + .asciz "Examples" # string offset=135 +.Linfo_string3: + .asciz "_Z1fi" # string offset=182 +.Linfo_string4: + .asciz "f" # string offset=188 +.Linfo_string5: + .asciz "int" # string offset=190 +.Linfo_string6: + .asciz "_Z1gi" # string offset=194 +.Linfo_string7: + .asciz "g" # string offset=200 +.Linfo_string8: + .asciz "_Z1hi" # string offset=202 +.Linfo_string9: + .asciz "h" # string offset=208 +.Linfo_string10: + .asciz "main" # string offset=210 +.Linfo_string11: + .asciz "a" # string offset=215 +.Linfo_string12: + .asciz "argc" # string offset=217 +.Linfo_string13: + .asciz "argv" # string offset=222 +.Linfo_string14: + .asciz "char" # string offset=227 + .ident "clang version 12.0.0 (git@github.com:llvm/llvm-project.git bfa6ca07a8cda0ab889b7fee0b914907ce594e11)" + .section ".note.GNU-stack","",@progbits + .addrsig + .addrsig_sym _Z1fi + .addrsig_sym _Z1gi + .addrsig_sym _Z1hi + .section .debug_line,"",@progbits +.Lline_table_start0: