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445 lines
21 KiB
ArmAsm
445 lines
21 KiB
ArmAsm
# REQUIRES: system-linux
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# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %s -o %tmain.o
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# RUN: %clang %cflags -dwarf-4 %tmain.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.bolt --update-debug-sections --use-old-text
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# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.bolt > %t.txt
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# RUN: llvm-dwarfdump --show-form --verbose --debug-info %t.exe >> %t.txt
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# RUN: cat %t.txt | FileCheck --check-prefix=CHECK %s
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# CHECK: DW_TAG_inlined_subroutine
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# CHECK: DW_AT_low_pc [DW_FORM_addr] (0x[[#%.16x,ADDR:]])
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# CHECK: DW_AT_high_pc [DW_FORM_data4] (0x00000000)
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# CHECK: DW_TAG_inlined_subroutine
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# CHECK-NOT: DW_AT_low_pc [DW_FORM_addr] (0x[[#ADDR]])
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# CHECK: DW_AT_high_pc [DW_FORM_data4] (0x00000000)
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## Testing BOLT handles correctly when size of DW_AT_inlined_subroutine is 0.
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## In other words DW_AT_high_pc is 0 or DW_AT_low_pc == DW_AT_high_pc.
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# Modified assembly manually to set DW_AT_high_pc to 0.
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# clang++ -g2 -gdwarf-4 main.cpp -O1 -S -o main4.s
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# static int helper(int i) {
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# return ++i;
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# }
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# void may_not_exist(void) __attribute__ ((weak));
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# int main(int argc, char *argv[]) {
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# if (may_not_exist)
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# may_not_exist();
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# int j = 0;
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# [[clang::always_inline]] j = helper(argc);
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# return j;
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# }
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.text
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.file "main.cpp"
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.globl main # -- Begin function main
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.p2align 4, 0x90
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.type main,@function
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main: # @main
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.Lfunc_begin0:
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.file 1 "." "main.cpp"
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.loc 1 5 0 # main.cpp:5:0
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.cfi_startproc
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# %bb.0: # %entry
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#DEBUG_VALUE: main:argc <- $edi
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#DEBUG_VALUE: main:argv <- $rsi
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pushq %rbx
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.cfi_def_cfa_offset 16
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.cfi_offset %rbx, -16
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movl %edi, %ebx
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.Ltmp0:
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.loc 1 6 7 prologue_end # main.cpp:6:7
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cmpq $0, _Z13may_not_existv@GOTPCREL(%rip)
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je .LBB0_2
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.Ltmp1:
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# %bb.1: # %if.then
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#DEBUG_VALUE: main:argc <- $ebx
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#DEBUG_VALUE: main:argv <- $rsi
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.loc 1 7 5 # main.cpp:7:5
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callq _Z13may_not_existv@PLT
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.Ltmp2:
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#DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi
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.LBB0_2: # %if.end
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#DEBUG_VALUE: main:argc <- $ebx
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#DEBUG_VALUE: main:argv <- [DW_OP_LLVM_entry_value 1] $rsi
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#DEBUG_VALUE: main:j <- 0
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#DEBUG_VALUE: helper:i <- $ebx
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.loc 1 2 10 # main.cpp:2:10
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incl %ebx
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.Ltmp3:
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#DEBUG_VALUE: main:argc <- [DW_OP_LLVM_entry_value 1] $edi
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#DEBUG_VALUE: helper:i <- $ebx
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#DEBUG_VALUE: main:j <- $ebx
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.loc 1 10 3 # main.cpp:10:3
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movl %ebx, %eax
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popq %rbx
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.Ltmp4:
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#DEBUG_VALUE: helper:i <- $eax
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#DEBUG_VALUE: main:j <- $eax
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.cfi_def_cfa_offset 8
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retq
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.Ltmp5:
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.Lfunc_end0:
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.size main, .Lfunc_end0-main
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.cfi_endproc
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# -- End function
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.section .debug_loc,"",@progbits
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.Ldebug_loc0:
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.quad .Lfunc_begin0-.Lfunc_begin0
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.quad .Ltmp1-.Lfunc_begin0
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.short 1 # Loc expr size
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.byte 85 # super-register DW_OP_reg5
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.quad .Ltmp1-.Lfunc_begin0
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.quad .Ltmp3-.Lfunc_begin0
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.short 1 # Loc expr size
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.byte 83 # super-register DW_OP_reg3
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.quad .Ltmp3-.Lfunc_begin0
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.quad .Lfunc_end0-.Lfunc_begin0
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.short 4 # Loc expr size
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.byte 243 # DW_OP_GNU_entry_value
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.byte 1 # 1
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.byte 85 # super-register DW_OP_reg5
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.byte 159 # DW_OP_stack_value
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.quad 0
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.quad 0
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.Ldebug_loc1:
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.quad .Lfunc_begin0-.Lfunc_begin0
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.quad .Ltmp2-.Lfunc_begin0
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.short 1 # Loc expr size
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.byte 84 # DW_OP_reg4
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.quad .Ltmp2-.Lfunc_begin0
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.quad .Lfunc_end0-.Lfunc_begin0
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.short 4 # Loc expr size
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.byte 243 # DW_OP_GNU_entry_value
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.byte 1 # 1
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.byte 84 # DW_OP_reg4
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.byte 159 # DW_OP_stack_value
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.quad 0
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.quad 0
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.Ldebug_loc2:
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.quad .Ltmp2-.Lfunc_begin0
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.quad .Ltmp3-.Lfunc_begin0
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.short 3 # Loc expr size
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.byte 17 # DW_OP_consts
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.byte 0 # 0
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.byte 159 # DW_OP_stack_value
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.quad .Ltmp3-.Lfunc_begin0
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.quad .Ltmp4-.Lfunc_begin0
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.short 1 # Loc expr size
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.byte 83 # super-register DW_OP_reg3
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.quad .Ltmp4-.Lfunc_begin0
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.quad .Lfunc_end0-.Lfunc_begin0
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.short 1 # Loc expr size
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.byte 80 # super-register DW_OP_reg0
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.quad 0
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.quad 0
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.section .debug_abbrev,"",@progbits
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 1 # DW_CHILDREN_yes
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.byte 37 # DW_AT_producer
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.byte 14 # DW_FORM_strp
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.byte 19 # DW_AT_language
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.byte 5 # DW_FORM_data2
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 16 # DW_AT_stmt_list
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.byte 23 # DW_FORM_sec_offset
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.byte 27 # DW_AT_comp_dir
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.byte 14 # DW_FORM_strp
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 2 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 1 # DW_CHILDREN_yes
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.byte 110 # DW_AT_linkage_name
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.byte 14 # DW_FORM_strp
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 32 # DW_AT_inline
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.byte 11 # DW_FORM_data1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 3 # Abbreviation Code
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.byte 5 # DW_TAG_formal_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 4 # Abbreviation Code
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.byte 36 # DW_TAG_base_type
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 62 # DW_AT_encoding
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.byte 11 # DW_FORM_data1
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.byte 11 # DW_AT_byte_size
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.byte 11 # DW_FORM_data1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 5 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 1 # DW_CHILDREN_yes
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 64 # DW_AT_frame_base
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.byte 24 # DW_FORM_exprloc
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.ascii "\227B" # DW_AT_GNU_all_call_sites
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.byte 25 # DW_FORM_flag_present
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 6 # Abbreviation Code
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.byte 5 # DW_TAG_formal_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 23 # DW_FORM_sec_offset
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 7 # Abbreviation Code
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.byte 52 # DW_TAG_variable
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 23 # DW_FORM_sec_offset
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 8 # Abbreviation Code
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.byte 29 # DW_TAG_inlined_subroutine
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.byte 1 # DW_CHILDREN_yes
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.byte 49 # DW_AT_abstract_origin
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.byte 19 # DW_FORM_ref4
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 18 # DW_AT_high_pc
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.byte 6 # DW_FORM_data4
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.byte 88 # DW_AT_call_file
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.byte 11 # DW_FORM_data1
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.byte 89 # DW_AT_call_line
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.byte 11 # DW_FORM_data1
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.byte 87 # DW_AT_call_column
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.byte 11 # DW_FORM_data1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 9 # Abbreviation Code
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.byte 5 # DW_TAG_formal_parameter
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 24 # DW_FORM_exprloc
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.byte 49 # DW_AT_abstract_origin
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 10 # Abbreviation Code
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.ascii "\211\202\001" # DW_TAG_GNU_call_site
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.byte 0 # DW_CHILDREN_no
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.byte 49 # DW_AT_abstract_origin
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.byte 19 # DW_FORM_ref4
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.byte 17 # DW_AT_low_pc
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.byte 1 # DW_FORM_addr
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 11 # Abbreviation Code
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.byte 46 # DW_TAG_subprogram
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.byte 0 # DW_CHILDREN_no
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.byte 110 # DW_AT_linkage_name
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.byte 14 # DW_FORM_strp
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.byte 3 # DW_AT_name
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.byte 14 # DW_FORM_strp
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.byte 58 # DW_AT_decl_file
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.byte 11 # DW_FORM_data1
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.byte 59 # DW_AT_decl_line
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.byte 11 # DW_FORM_data1
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.byte 60 # DW_AT_declaration
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.byte 25 # DW_FORM_flag_present
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.byte 63 # DW_AT_external
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.byte 25 # DW_FORM_flag_present
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 12 # Abbreviation Code
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.byte 15 # DW_TAG_pointer_type
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.byte 0 # DW_CHILDREN_no
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.byte 73 # DW_AT_type
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.byte 19 # DW_FORM_ref4
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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.section .debug_info,"",@progbits
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.Lcu_begin0:
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.long .Ldebug_info_end0-.Ldebug_info_start0 # Length of Unit
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.Ldebug_info_start0:
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.short 4 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0xcf DW_TAG_compile_unit
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.long .Linfo_string0 # DW_AT_producer
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.short 33 # DW_AT_language
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.long .Linfo_string1 # DW_AT_name
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.long .Lline_table_start0 # DW_AT_stmt_list
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.long .Linfo_string2 # DW_AT_comp_dir
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.byte 2 # Abbrev [2] 0x2a:0x1c DW_TAG_subprogram
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.long .Linfo_string3 # DW_AT_linkage_name
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.long .Linfo_string4 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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.long 70 # DW_AT_type
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.byte 1 # DW_AT_inline
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.byte 3 # Abbrev [3] 0x3a:0xb DW_TAG_formal_parameter
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.long .Linfo_string6 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 1 # DW_AT_decl_line
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.long 70 # DW_AT_type
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.byte 0 # End Of Children Mark
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.byte 4 # Abbrev [4] 0x46:0x7 DW_TAG_base_type
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.long .Linfo_string5 # DW_AT_name
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.byte 5 # DW_AT_encoding
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.byte 4 # DW_AT_byte_size
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.byte 5 # Abbrev [5] 0x4d:0x70 DW_TAG_subprogram
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.quad .Lfunc_begin0 # DW_AT_low_pc
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.long .Lfunc_end0-.Lfunc_begin0 # DW_AT_high_pc
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.byte 1 # DW_AT_frame_base
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.byte 87
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# DW_AT_GNU_all_call_sites
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.long .Linfo_string9 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.long 70 # DW_AT_type
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# DW_AT_external
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.byte 6 # Abbrev [6] 0x66:0xf DW_TAG_formal_parameter
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.long .Ldebug_loc0 # DW_AT_location
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.long .Linfo_string10 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.long 70 # DW_AT_type
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.byte 6 # Abbrev [6] 0x75:0xf DW_TAG_formal_parameter
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.long .Ldebug_loc1 # DW_AT_location
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.long .Linfo_string11 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 5 # DW_AT_decl_line
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.long 200 # DW_AT_type
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.byte 7 # Abbrev [7] 0x84:0xf DW_TAG_variable
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.long .Ldebug_loc2 # DW_AT_location
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.long .Linfo_string13 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 8 # DW_AT_decl_line
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.long 70 # DW_AT_type
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.byte 8 # Abbrev [8] 0x93:0x1c DW_TAG_inlined_subroutine
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.long 42 # DW_AT_abstract_origin
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.quad .Ltmp2 # DW_AT_low_pc
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.long 0 # DW_AT_high_pc Manually modified
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.byte 1 # DW_AT_call_file
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.byte 9 # DW_AT_call_line
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.byte 32 # DW_AT_call_column
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.byte 9 # Abbrev [9] 0xa7:0x7 DW_TAG_formal_parameter
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.byte 1 # DW_AT_location
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.byte 83
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.long 58 # DW_AT_abstract_origin
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.byte 0 # End Of Children Mark
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.byte 10 # Abbrev [10] 0xaf:0xd DW_TAG_GNU_call_site
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.long 189 # DW_AT_abstract_origin
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.quad .Ltmp2 # DW_AT_low_pc
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.byte 0 # End Of Children Mark
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.byte 11 # Abbrev [11] 0xbd:0xb DW_TAG_subprogram
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.long .Linfo_string7 # DW_AT_linkage_name
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.long .Linfo_string8 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 4 # DW_AT_decl_line
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# DW_AT_declaration
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# DW_AT_external
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.byte 12 # Abbrev [12] 0xc8:0x5 DW_TAG_pointer_type
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.long 205 # DW_AT_type
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.byte 12 # Abbrev [12] 0xcd:0x5 DW_TAG_pointer_type
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.long 210 # DW_AT_type
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.byte 4 # Abbrev [4] 0xd2:0x7 DW_TAG_base_type
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.long .Linfo_string12 # DW_AT_name
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.byte 6 # DW_AT_encoding
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.byte 1 # DW_AT_byte_size
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.byte 0 # End Of Children Mark
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.Ldebug_info_end0:
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.section .debug_str,"MS",@progbits,1
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.Linfo_string0:
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.asciz "clang version 16.0.0" # string offset=0
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.Linfo_string1:
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.asciz "main.cpp" # string offset=105
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.Linfo_string2:
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.asciz "." # string offset=114
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.Linfo_string3:
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.asciz "_ZL6helperi" # string offset=152
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.Linfo_string4:
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.asciz "helper" # string offset=164
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.Linfo_string5:
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.asciz "int" # string offset=171
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.Linfo_string6:
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.asciz "i" # string offset=175
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.Linfo_string7:
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.asciz "_Z13may_not_existv" # string offset=177
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.Linfo_string8:
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.asciz "may_not_exist" # string offset=196
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.Linfo_string9:
|
|
.asciz "main" # string offset=210
|
|
.Linfo_string10:
|
|
.asciz "argc" # string offset=215
|
|
.Linfo_string11:
|
|
.asciz "argv" # string offset=220
|
|
.Linfo_string12:
|
|
.asciz "char" # string offset=225
|
|
.Linfo_string13:
|
|
.asciz "j" # string offset=230
|
|
.weak _Z13may_not_existv
|
|
.ident "clang version 16.0.0"
|
|
.section ".note.GNU-stack","",@progbits
|
|
.addrsig
|
|
.addrsig_sym _Z13may_not_existv
|
|
.section .debug_line,"",@progbits
|
|
.Lline_table_start0:
|