Author: Alexander Yermolovich Date: 2022-06-22T10:54:25-07:00 New Revision: 130167ed1effa36aa56c83c4293e732e5163d993
URL: https://github.com/llvm/llvm-project/commit/130167ed1effa36aa56c83c4293e732e5163d993 DIFF: https://github.com/llvm/llvm-project/commit/130167ed1effa36aa56c83c4293e732e5163d993.diff LOG: [LLDB] Handle DIE with DW_AT_low_pc and empty ranges The case comes out of how BOLT handles transformation of DW_AT_low_pc/DW_AT_high_pc into DW_AT_low_pc/DW_AT_high_pc with latter being 0. Reviewed By: clayborg Differential Revision: https://reviews.llvm.org/D127889 Added: lldb/test/Shell/Commands/Inputs/dwarf4-low-pc-ranges-inlining.s lldb/test/Shell/Commands/Inputs/dwarf5-low-pc-ranges-inlining.s lldb/test/Shell/Commands/dwarf4-low-pc-ranges-inlining.test lldb/test/Shell/Commands/dwarf5-low-pc-ranges-inlining.test Modified: lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp Removed: ################################################################################ diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp index c0bf13e0281d3..7be67f83add3d 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp +++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp @@ -1279,6 +1279,8 @@ size_t SymbolFileDWARF::ParseBlocksRecursive( const size_t num_ranges = ranges.GetSize(); for (size_t i = 0; i < num_ranges; ++i) { const DWARFRangeList::Entry &range = ranges.GetEntryRef(i); + if (range.GetByteSize() == 0) + continue; const addr_t range_base = range.GetRangeBase(); if (range_base >= subprogram_low_pc) block->AddRange(Block::Range(range_base - subprogram_low_pc, diff --git a/lldb/test/Shell/Commands/Inputs/dwarf4-low-pc-ranges-inlining.s b/lldb/test/Shell/Commands/Inputs/dwarf4-low-pc-ranges-inlining.s new file mode 100644 index 0000000000000..458e26250b429 --- /dev/null +++ b/lldb/test/Shell/Commands/Inputs/dwarf4-low-pc-ranges-inlining.s @@ -0,0 +1,369 @@ + +# Manually modified to have DW_AT_ranges point to end list. +# int helper(int i) { +# return ++i; +# } +# +# int main(int argc, char *argv[]) { +# return helper(argc); +# } + +# Manually modified DW_TAG_inlined_subroutine to have DW_AT_low_pc with value 0, +# and DW_AT_ranges to point to end ranges list. + + .text + .file "main.cpp" + .section .text._Z6helperi,"ax",@progbits + .globl _Z6helperi # -- Begin function _Z6helperi + .p2align 4, 0x90 + .type _Z6helperi,@function +_Z6helperi: # @_Z6helperi +.Lfunc_begin0: + .file 1 "/home/test" "main.cpp" + .loc 1 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: helper:i <- $edi + # kill: def $edi killed $edi def $rdi + .loc 1 2 10 prologue_end # main.cpp:2:10 + leal 1(%rdi), %eax +.Ltmp0: + #DEBUG_VALUE: helper:i <- $eax + .loc 1 2 3 is_stmt 0 # main.cpp:2:3 + retq +.Ltmp1: +.Lfunc_end0: + .size _Z6helperi, .Lfunc_end0-_Z6helperi + .cfi_endproc + # -- End function + .section .text.main,"ax",@progbits + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin1: + .loc 1 5 0 is_stmt 1 # main.cpp:5:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: main:argc <- $edi + #DEBUG_VALUE: main:argv <- $rsi + #DEBUG_VALUE: helper:i <- $edi + # kill: def $edi killed $edi def $rdi + .loc 1 2 10 prologue_end # main.cpp:2:10 + leal 1(%rdi), %eax +.Ltmp2: + #DEBUG_VALUE: helper:i <- $eax + .loc 1 6 3 # main.cpp:6:3 + retq +.Ltmp3: +.Lfunc_end1: + .size main, .Lfunc_end1-main + .cfi_endproc + # -- End function + .section .debug_loc,"",@progbits +.Ldebug_loc0: + .quad -1 + .quad .Lfunc_begin0 # base address + .quad .Lfunc_begin0-.Lfunc_begin0 + .quad .Ltmp0-.Lfunc_begin0 + .short 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .quad .Ltmp0-.Lfunc_begin0 + .quad .Lfunc_end0-.Lfunc_begin0 + .short 1 # Loc expr size + .byte 80 # super-register DW_OP_reg0 + .quad 0 + .quad 0 +.Ldebug_loc1: + .quad -1 + .quad .Lfunc_begin1 # base address + .quad .Lfunc_begin1-.Lfunc_begin1 + .quad .Ltmp2-.Lfunc_begin1 + .short 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .quad .Ltmp2-.Lfunc_begin1 + .quad .Lfunc_end1-.Lfunc_begin1 + .short 1 # Loc expr size + .byte 80 # super-register DW_OP_reg0 + .quad 0 + .quad 0 + .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 + .ascii "\227B" # DW_AT_GNU_all_call_sites + .byte 25 # DW_FORM_flag_present + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .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 23 # DW_FORM_sec_offset + .byte 49 # DW_AT_abstract_origin + .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 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 32 # DW_AT_inline + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .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 6 # 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 7 # 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 + .ascii "\227B" # DW_AT_GNU_all_call_sites + .byte 25 # DW_FORM_flag_present + .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 8 # 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 9 # Abbreviation Code + .byte 29 # DW_TAG_inlined_subroutine + .byte 1 # DW_CHILDREN_yes + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 17 # DW_AT_low_pc + .byte 1 # DW_FORM_addr + .byte 85 # DW_AT_ranges + .byte 23 # DW_FORM_sec_offset + .byte 88 # DW_AT_call_file + .byte 11 # DW_FORM_data1 + .byte 89 # DW_AT_call_line + .byte 11 # DW_FORM_data1 + .byte 87 # DW_AT_call_column + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 10 # 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:0xc3 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_ranges0 # DW_AT_ranges + .byte 2 # Abbrev [2] 0x2a:0x1d 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 87 + # DW_AT_GNU_all_call_sites + .long 71 # DW_AT_abstract_origin + .byte 3 # Abbrev [3] 0x3d:0x9 DW_TAG_formal_parameter + .long .Ldebug_loc0 # DW_AT_location + .long 87 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 4 # Abbrev [4] 0x47:0x1c DW_TAG_subprogram + .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 99 # DW_AT_type + # DW_AT_external + .byte 1 # DW_AT_inline + .byte 5 # Abbrev [5] 0x57:0xb DW_TAG_formal_parameter + .long .Linfo_string6 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 99 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x63:0x7 DW_TAG_base_type + .long .Linfo_string5 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 7 # Abbrev [7] 0x6a:0x52 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 87 + # DW_AT_GNU_all_call_sites + .long .Linfo_string7 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 99 # DW_AT_type + # DW_AT_external + .byte 8 # Abbrev [8] 0x83:0xd DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .long .Linfo_string8 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 99 # DW_AT_type + .byte 8 # Abbrev [8] 0x90:0xd DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .long .Linfo_string9 # DW_AT_name + .byte 1 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 188 # DW_AT_type + .byte 9 # Abbrev [9] 0x9d:0x1e DW_TAG_inlined_subroutine + .long 71 # DW_AT_abstract_origin + .quad 0 # DW_AT_low_pc + .long .Ldebug_ranges1 # DW_AT_ranges + .byte 1 # DW_AT_call_file + .byte 6 # DW_AT_call_line + .byte 10 # DW_AT_call_column + .byte 3 # Abbrev [3] 0xb1:0x9 DW_TAG_formal_parameter + .long .Ldebug_loc1 # DW_AT_location + .long 87 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 0 # End Of Children Mark + .byte 10 # Abbrev [10] 0xbc:0x5 DW_TAG_pointer_type + .long 193 # DW_AT_type + .byte 10 # Abbrev [10] 0xc1:0x5 DW_TAG_pointer_type + .long 198 # DW_AT_type + .byte 6 # Abbrev [6] 0xc6:0x7 DW_TAG_base_type + .long .Linfo_string10 # 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 .Lfunc_begin0 + .quad .Lfunc_end0 + .quad .Lfunc_begin1 + .quad .Lfunc_end1 + .quad 0 + .quad 0 +.Ldebug_ranges1: + .quad 0 + .quad 0 + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=105 +.Linfo_string2: + .asciz "/home/test" # string offset=114 +.Linfo_string3: + .asciz "_Z6helperi" # string offset=152 +.Linfo_string4: + .asciz "helper" # string offset=163 +.Linfo_string5: + .asciz "int" # string offset=170 +.Linfo_string6: + .asciz "i" # string offset=174 +.Linfo_string7: + .asciz "main" # string offset=176 +.Linfo_string8: + .asciz "argc" # string offset=181 +.Linfo_string9: + .asciz "argv" # string offset=186 +.Linfo_string10: + .asciz "char" # string offset=191 + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/lldb/test/Shell/Commands/Inputs/dwarf5-low-pc-ranges-inlining.s b/lldb/test/Shell/Commands/Inputs/dwarf5-low-pc-ranges-inlining.s new file mode 100644 index 0000000000000..9430fa205a3b9 --- /dev/null +++ b/lldb/test/Shell/Commands/Inputs/dwarf5-low-pc-ranges-inlining.s @@ -0,0 +1,429 @@ +# Manually modified to have DW_AT_ranges point to end list. +# int helper(int i) { +# return ++i; +# } +# +# int main(int argc, char *argv[]) { +# return helper(argc); +# } + + .text + .file "main.cpp" + .section .text._Z6helperi,"ax",@progbits + .globl _Z6helperi # -- Begin function _Z6helperi + .p2align 4, 0x90 + .type _Z6helperi,@function +_Z6helperi: # @_Z6helperi +.Lfunc_begin0: + .file 0 "/home/test" "main.cpp" md5 0x3fc4870015f8bb98cd719b92f3dca96e + .loc 0 1 0 # main.cpp:1:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: helper:i <- $edi + # kill: def $edi killed $edi def $rdi + .loc 0 2 10 prologue_end # main.cpp:2:10 + leal 1(%rdi), %eax +.Ltmp0: + #DEBUG_VALUE: helper:i <- $eax + .loc 0 2 3 is_stmt 0 # main.cpp:2:3 + retq +.Ltmp1: +.Lfunc_end0: + .size _Z6helperi, .Lfunc_end0-_Z6helperi + .cfi_endproc + # -- End function + .section .text.main,"ax",@progbits + .globl main # -- Begin function main + .p2align 4, 0x90 + .type main,@function +main: # @main +.Lfunc_begin1: + .loc 0 5 0 is_stmt 1 # main.cpp:5:0 + .cfi_startproc +# %bb.0: # %entry + #DEBUG_VALUE: main:argc <- $edi + #DEBUG_VALUE: main:argv <- $rsi + #DEBUG_VALUE: helper:i <- $edi + # kill: def $edi killed $edi def $rdi + .loc 0 2 10 prologue_end # main.cpp:2:10 + leal 1(%rdi), %eax +.Ltmp2: + #DEBUG_VALUE: helper:i <- $eax + .loc 0 6 3 # main.cpp:6:3 + retq +.Ltmp3: +.Lfunc_end1: + .size main, .Lfunc_end1-main + .cfi_endproc + # -- End function + .section .debug_loclists,"",@progbits + .long .Ldebug_list_header_end0-.Ldebug_list_header_start0 # Length +.Ldebug_list_header_start0: + .short 5 # Version + .byte 8 # Address size + .byte 0 # Segment selector size + .long 2 # Offset entry count +.Lloclists_table_base0: + .long .Ldebug_loc0-.Lloclists_table_base0 + .long .Ldebug_loc1-.Lloclists_table_base0 +.Ldebug_loc0: + .byte 1 # DW_LLE_base_addressx + .byte 0 # base address index + .byte 4 # DW_LLE_offset_pair + .uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset + .uleb128 .Ltmp0-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .byte 4 # DW_LLE_offset_pair + .uleb128 .Ltmp0-.Lfunc_begin0 # starting offset + .uleb128 .Lfunc_end0-.Lfunc_begin0 # ending offset + .byte 1 # Loc expr size + .byte 80 # super-register DW_OP_reg0 + .byte 0 # DW_LLE_end_of_list +.Ldebug_loc1: + .byte 1 # DW_LLE_base_addressx + .byte 1 # base address index + .byte 4 # DW_LLE_offset_pair + .uleb128 .Lfunc_begin1-.Lfunc_begin1 # starting offset + .uleb128 .Ltmp2-.Lfunc_begin1 # ending offset + .byte 1 # Loc expr size + .byte 85 # super-register DW_OP_reg5 + .byte 4 # DW_LLE_offset_pair + .uleb128 .Ltmp2-.Lfunc_begin1 # starting offset + .uleb128 .Lfunc_end1-.Lfunc_begin1 # ending offset + .byte 1 # Loc expr size + .byte 80 # super-register DW_OP_reg0 + .byte 0 # DW_LLE_end_of_list +.Ldebug_list_header_end0: + .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 17 # DW_AT_low_pc + .byte 1 # DW_FORM_addr + .byte 85 # DW_AT_ranges + .byte 35 # DW_FORM_rnglistx + .byte 115 # DW_AT_addr_base + .byte 23 # DW_FORM_sec_offset + .byte 116 # DW_AT_rnglists_base + .byte 23 # DW_FORM_sec_offset + .ascii "\214\001" # DW_AT_loclists_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 1 # DW_CHILDREN_yes + .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 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .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 34 # DW_FORM_loclistx + .byte 49 # DW_AT_abstract_origin + .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 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 32 # DW_AT_inline + .byte 33 # DW_FORM_implicit_const + .byte 1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 5 # Abbreviation Code + .byte 5 # DW_TAG_formal_parameter + .byte 0 # DW_CHILDREN_no + .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 0 # EOM(1) + .byte 0 # EOM(2) + .byte 6 # 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 7 # Abbreviation Code + .byte 46 # DW_TAG_subprogram + .byte 1 # DW_CHILDREN_yes + .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 122 # DW_AT_call_all_calls + .byte 25 # DW_FORM_flag_present + .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 8 # 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 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 0 # EOM(1) + .byte 0 # EOM(2) + .byte 9 # Abbreviation Code + .byte 29 # DW_TAG_inlined_subroutine + .byte 1 # DW_CHILDREN_yes + .byte 49 # DW_AT_abstract_origin + .byte 19 # DW_FORM_ref4 + .byte 17 # DW_AT_low_pc + .byte 27 # DW_FORM_addrx + .byte 85 # DW_AT_ranges + .byte 35 # DW_FORM_rnglistx + .byte 88 # DW_AT_call_file + .byte 11 # DW_FORM_data1 + .byte 89 # DW_AT_call_line + .byte 11 # DW_FORM_data1 + .byte 87 # DW_AT_call_column + .byte 11 # DW_FORM_data1 + .byte 0 # EOM(1) + .byte 0 # EOM(2) + .byte 10 # 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 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:0x93 DW_TAG_compile_unit + .byte 0 # DW_AT_producer + .short 33 # DW_AT_language + .byte 1 # 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 + .quad 0 # DW_AT_low_pc + .byte 0 # DW_AT_ranges + .long .Laddr_table_base0 # DW_AT_addr_base + .long .Lrnglists_table_base0 # DW_AT_rnglists_base + .long .Lloclists_table_base0 # DW_AT_loclists_base + .byte 2 # Abbrev [2] 0x2f:0x13 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 87 + # DW_AT_call_all_calls + .long 66 # DW_AT_abstract_origin + .byte 3 # Abbrev [3] 0x3b:0x6 DW_TAG_formal_parameter + .byte 0 # DW_AT_location + .long 75 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 4 # Abbrev [4] 0x42:0x12 DW_TAG_subprogram + .byte 3 # DW_AT_linkage_name + .byte 4 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 84 # DW_AT_type + # DW_AT_external + # DW_AT_inline + .byte 5 # Abbrev [5] 0x4b:0x8 DW_TAG_formal_parameter + .byte 6 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 1 # DW_AT_decl_line + .long 84 # DW_AT_type + .byte 0 # End Of Children Mark + .byte 6 # Abbrev [6] 0x54:0x4 DW_TAG_base_type + .byte 5 # DW_AT_name + .byte 5 # DW_AT_encoding + .byte 4 # DW_AT_byte_size + .byte 7 # Abbrev [7] 0x58:0x38 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 87 + # DW_AT_call_all_calls + .byte 7 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 84 # DW_AT_type + # DW_AT_external + .byte 8 # Abbrev [8] 0x67:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 85 + .byte 8 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 84 # DW_AT_type + .byte 8 # Abbrev [8] 0x71:0xa DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .byte 84 + .byte 9 # DW_AT_name + .byte 0 # DW_AT_decl_file + .byte 5 # DW_AT_decl_line + .long 144 # DW_AT_type + .byte 9 # Abbrev [9] 0x7b:0x14 DW_TAG_inlined_subroutine + .long 66 # DW_AT_abstract_origin + .byte 2 # DW_AT_low_pc + .byte 1 # DW_AT_ranges + .byte 0 # DW_AT_call_file + .byte 6 # DW_AT_call_line + .byte 10 # DW_AT_call_column + .byte 3 # Abbrev [3] 0x88:0x6 DW_TAG_formal_parameter + .byte 1 # DW_AT_location + .long 75 # DW_AT_abstract_origin + .byte 0 # End Of Children Mark + .byte 0 # End Of Children Mark + .byte 10 # Abbrev [10] 0x90:0x5 DW_TAG_pointer_type + .long 149 # DW_AT_type + .byte 10 # Abbrev [10] 0x95:0x5 DW_TAG_pointer_type + .long 154 # DW_AT_type + .byte 6 # Abbrev [6] 0x9a:0x4 DW_TAG_base_type + .byte 10 # 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_rnglists,"",@progbits + .long .Ldebug_list_header_end1-.Ldebug_list_header_start1 # Length +.Ldebug_list_header_start1: + .short 5 # Version + .byte 8 # Address size + .byte 0 # Segment selector size + .long 2 # Offset entry count +.Lrnglists_table_base0: + .long .Ldebug_ranges0-.Lrnglists_table_base0 + .long .Ldebug_ranges1-.Lrnglists_table_base0 +.Ldebug_ranges0: + .byte 3 # DW_RLE_startx_length + .byte 0 # start index + .uleb128 .Lfunc_end0-.Lfunc_begin0 # length + .byte 3 # DW_RLE_startx_length + .byte 1 # start index + .uleb128 .Lfunc_end1-.Lfunc_begin1 # length + .byte 0 # DW_RLE_end_of_list + .Ldebug_ranges1: + .byte 0 # DW_RLE_end_of_list +.Ldebug_list_header_end1: + .section .debug_str_offsets,"",@progbits + .long 48 # Length of String Offsets Set + .short 5 + .short 0 +.Lstr_offsets_base0: + .section .debug_str,"MS",@progbits,1 +.Linfo_string0: + .asciz "clang version 15.0.0" # string offset=0 +.Linfo_string1: + .asciz "main.cpp" # string offset=134 +.Linfo_string2: + .asciz "/home/test" # string offset=143 +.Linfo_string3: + .asciz "_Z6helperi" # string offset=181 +.Linfo_string4: + .asciz "helper" # string offset=192 +.Linfo_string5: + .asciz "int" # string offset=199 +.Linfo_string6: + .asciz "i" # string offset=203 +.Linfo_string7: + .asciz "main" # string offset=205 +.Linfo_string8: + .asciz "argc" # string offset=210 +.Linfo_string9: + .asciz "argv" # string offset=215 +.Linfo_string10: + .asciz "char" # string offset=220 + .section .debug_str_offsets,"",@progbits + .long .Linfo_string0 + .long .Linfo_string1 + .long .Linfo_string2 + .long .Linfo_string3 + .long .Linfo_string4 + .long .Linfo_string5 + .long .Linfo_string6 + .long .Linfo_string7 + .long .Linfo_string8 + .long .Linfo_string9 + .long .Linfo_string10 + .section .debug_addr,"",@progbits + .long .Ldebug_addr_end0-.Ldebug_addr_start0 # Length of contribution +.Ldebug_addr_start0: + .short 5 # DWARF version number + .byte 8 # Address size + .byte 0 # Segment selector size +.Laddr_table_base0: + .quad .Lfunc_begin0 + .quad .Lfunc_begin1 + .quad 0 +.Ldebug_addr_end0: + .ident "clang version 15.0.0" + .section ".note.GNU-stack","",@progbits + .addrsig + .section .debug_line,"",@progbits +.Lline_table_start0: diff --git a/lldb/test/Shell/Commands/dwarf4-low-pc-ranges-inlining.test b/lldb/test/Shell/Commands/dwarf4-low-pc-ranges-inlining.test new file mode 100644 index 0000000000000..d973cebd68906 --- /dev/null +++ b/lldb/test/Shell/Commands/dwarf4-low-pc-ranges-inlining.test @@ -0,0 +1,13 @@ +# REQUIRES: system-linux + +# RUN: rm -rf %t.dir +# RUN: mkdir %t.dir +# RUN: cd %t.dir +# RUN: llvm-mc -dwarf-version=4 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf4-low-pc-ranges-inlining.s -o %t.dir/main4.o +# RUN: %clang %t.dir/main4.o -o %t.dir/main4.exe +# RUN: %lldb -b -o 'b main' %t.dir/main4.exe &> %t.dir/output.txt +# RUN: cat %t.dir/output.txt | FileCheck %s + +# Test checks lldb handles a case of a DIE with DW_AT_low_pc with 0x0 address, and DW_AT_ranges that point to end of list. +# CHECK-NOT: error: main4.exe +# CHECK: Breakpoint 1: where diff --git a/lldb/test/Shell/Commands/dwarf5-low-pc-ranges-inlining.test b/lldb/test/Shell/Commands/dwarf5-low-pc-ranges-inlining.test new file mode 100644 index 0000000000000..0aeb7403a0520 --- /dev/null +++ b/lldb/test/Shell/Commands/dwarf5-low-pc-ranges-inlining.test @@ -0,0 +1,13 @@ +# REQUIRES: system-linux + +# RUN: rm -rf %t.dir +# RUN: mkdir %t.dir +# RUN: cd %t.dir +# RUN: llvm-mc -dwarf-version=5 -filetype=obj -triple x86_64-unknown-linux %p/Inputs/dwarf5-low-pc-ranges-inlining.s -o %t.dir/main5.o +# RUN: %clang %t.dir/main5.o -o %t.dir/main5.exe +# RUN: %lldb -b -o 'b main' %t.dir/main5.exe &> %t.dir/output.txt +# RUN: cat %t.dir/output.txt | FileCheck %s + +# Test checks lldb handles a case of a DIE with DW_AT_low_pc with 0x0 address, and DW_AT_ranges that point to end of list. +# CHECK-NOT: error: main5.exe +# CHECK: Breakpoint 1: where _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
