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[llvm-dwarfdump] Fix split-dwarf bug in stats for inlined var loc cov
Initial (D96045) patch didn't handle split dwarf cases, so this fixes that bug. In addition, before applying this patch, we had a slowdown that happened after the D96045. With this patch, the slowdown will be fixed as well. Differential Revision: https://reviews.llvm.org/D100951
This commit is contained in:
Djordje Todorovic
Djordje Todorovic
parent
8aee2a9ea4
commit
2c383618e2
263
test/tools/llvm-dwarfdump/X86/Inputs/split-dwarf-objfile1.s
Normal file
263
test/tools/llvm-dwarfdump/X86/Inputs/split-dwarf-objfile1.s
Normal file
@ -0,0 +1,263 @@
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.text
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.file "test1.cpp"
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.globl _Z2f1v # -- Begin function _Z2f1v
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.p2align 4, 0x90
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.type _Z2f1v,@function
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_Z2f1v: # @_Z2f1v
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.Lfunc_begin0:
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.file 1 "./" "test1.cpp"
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.loc 1 7 0 # test1.cpp:7:0
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.cfi_startproc
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# %bb.0: # %entry
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pushq %rax
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.cfi_def_cfa_offset 16
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.Ltmp0:
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.loc 1 5 3 prologue_end # test1.cpp:5:3
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callq _ZL1xv
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.Ltmp1:
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.loc 1 9 1 # test1.cpp:9:1
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popq %rax
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.cfi_def_cfa_offset 8
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retq
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.Ltmp2:
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.Lfunc_end0:
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.size _Z2f1v, .Lfunc_end0-_Z2f1v
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.cfi_endproc
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# -- End function
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.p2align 4, 0x90 # -- Begin function _ZL1xv
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.type _ZL1xv,@function
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_ZL1xv: # @_ZL1xv
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.Lfunc_begin1:
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.loc 1 1 0 # test1.cpp:1:0
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.cfi_startproc
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# %bb.0: # %entry
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.loc 1 2 1 prologue_end # test1.cpp:2:1
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retq
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.Ltmp3:
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.Lfunc_end1:
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.size _ZL1xv, .Lfunc_end1-_ZL1xv
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.cfi_endproc
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# -- End function
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.section .debug_str.dwo,"eMS",@progbits,1
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.Linfo_string0:
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.asciz "_ZL1yv" # string offset=0
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.Linfo_string1:
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.asciz "y" # string offset=7
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.Linfo_string2:
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.asciz "var" # string offset=9
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.Linfo_string3:
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.asciz "int" # string offset=13
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.Linfo_string4:
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.asciz "_Z2f1v" # string offset=17
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.Linfo_string5:
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.asciz "f1" # string offset=24
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.Linfo_string6:
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.asciz "_ZL1xv" # string offset=27
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.Linfo_string7:
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.asciz "x" # string offset=34
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.Linfo_string8:
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.asciz "clang version 13.0.0" # string offset=36
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.Linfo_string9:
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.asciz "test1.cpp" # string offset=141
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.Linfo_string10:
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.asciz "test1.dwo" # string offset=151
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.section .debug_str_offsets.dwo,"e",@progbits
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.long 0
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.long 7
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.long 9
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.long 13
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.long 17
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.long 24
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.long 27
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.long 34
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.long 36
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.long 141
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.long 151
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.section .debug_info.dwo,"e",@progbits
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.long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit
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.Ldebug_info_dwo_start0:
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.short 4 # DWARF version number
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.long 0 # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] 0xb:0x4e DW_TAG_compile_unit
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.byte 8 # DW_AT_producer
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.short 33 # DW_AT_language
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.byte 9 # DW_AT_name
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.byte 10 # DW_AT_GNU_dwo_name
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.quad -7114235821576765290 # DW_AT_GNU_dwo_id
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.byte 2 # Abbrev [2] 0x19:0xf DW_TAG_subprogram
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.byte 0 # DW_AT_linkage_name
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.byte 1 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 3 # DW_AT_decl_line
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.byte 1 # DW_AT_inline
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.byte 3 # Abbrev [3] 0x1f:0x8 DW_TAG_variable
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.byte 2 # 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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.long 40 # DW_AT_type
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.byte 0 # End Of Children Mark
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.byte 4 # Abbrev [4] 0x28:0x4 DW_TAG_base_type
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.byte 3 # 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] 0x2c:0x20 DW_TAG_subprogram
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.byte 0 # 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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.byte 4 # DW_AT_linkage_name
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.byte 5 # DW_AT_name
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.byte 1 # DW_AT_decl_file
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.byte 7 # DW_AT_decl_line
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# DW_AT_external
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.byte 6 # Abbrev [6] 0x38:0xd DW_TAG_inlined_subroutine
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.long 25 # DW_AT_abstract_origin
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.byte 1 # DW_AT_low_pc
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.long .Ltmp1-.Ltmp0 # DW_AT_high_pc
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.byte 1 # DW_AT_call_file
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.byte 8 # DW_AT_call_line
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.byte 3 # DW_AT_call_column
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.byte 7 # Abbrev [7] 0x45:0x6 DW_TAG_GNU_call_site
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.long 76 # DW_AT_abstract_origin
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.byte 2 # DW_AT_low_pc
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.byte 0 # End Of Children Mark
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.byte 8 # Abbrev [8] 0x4c:0xc DW_TAG_subprogram
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.byte 3 # DW_AT_low_pc
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.long .Lfunc_end1-.Lfunc_begin1 # 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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.byte 6 # DW_AT_linkage_name
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.byte 7 # 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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.byte 0 # End Of Children Mark
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.Ldebug_info_dwo_end0:
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.section .debug_abbrev.dwo,"e",@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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.ascii "\202>" # DW_FORM_GNU_str_index
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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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.ascii "\202>" # DW_FORM_GNU_str_index
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.ascii "\260B" # DW_AT_GNU_dwo_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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.ascii "\261B" # DW_AT_GNU_dwo_id
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.byte 7 # DW_FORM_data8
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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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.ascii "\202>" # DW_FORM_GNU_str_index
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.byte 3 # DW_AT_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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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 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 52 # DW_TAG_variable
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.byte 0 # DW_CHILDREN_no
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.byte 3 # DW_AT_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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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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.ascii "\202>" # DW_FORM_GNU_str_index
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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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.ascii "\201>" # DW_FORM_GNU_addr_index
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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 110 # DW_AT_linkage_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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.byte 3 # DW_AT_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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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 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 29 # DW_TAG_inlined_subroutine
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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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.ascii "\201>" # DW_FORM_GNU_addr_index
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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 7 # 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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.ascii "\201>" # DW_FORM_GNU_addr_index
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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 46 # DW_TAG_subprogram
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.byte 0 # DW_CHILDREN_no
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.byte 17 # DW_AT_low_pc
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.ascii "\201>" # DW_FORM_GNU_addr_index
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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 110 # DW_AT_linkage_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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.byte 3 # DW_AT_name
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.ascii "\202>" # DW_FORM_GNU_str_index
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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 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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297
test/tools/llvm-dwarfdump/X86/Inputs/split-dwarf-objfile2.s
Normal file
297
test/tools/llvm-dwarfdump/X86/Inputs/split-dwarf-objfile2.s
Normal file
@ -0,0 +1,297 @@
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.text
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.file "test2.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 "/dir" "test2.cpp"
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.loc 1 8 0 # test2.cpp:8:0
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.cfi_startproc
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# %bb.0: # %entry
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pushq %rax
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.cfi_def_cfa_offset 16
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.Ltmp0:
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.loc 1 9 3 prologue_end # test2.cpp:9:3
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callq _Z2f1v
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.Ltmp1:
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.loc 1 5 3 # test2.cpp:5:3
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callq _ZL1xv
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.Ltmp2:
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.loc 1 11 1 # test2.cpp:11:1
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xorl %eax, %eax
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popq %rcx
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.cfi_def_cfa_offset 8
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retq
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.Ltmp3:
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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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.p2align 4, 0x90 # -- Begin function _ZL1xv
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.type _ZL1xv,@function
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_ZL1xv: # @_ZL1xv
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.Lfunc_begin1:
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.loc 1 1 0 # test2.cpp:1:0
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.cfi_startproc
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# %bb.0: # %entry
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.loc 1 2 1 prologue_end # test2.cpp:2:1
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retq
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.Ltmp4:
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.Lfunc_end1:
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.size _ZL1xv, .Lfunc_end1-_ZL1xv
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.cfi_endproc
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# -- End function
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.section .debug_str.dwo,"eMS",@progbits,1
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.Linfo_string0:
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.asciz "_ZL1yv" # string offset=0
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.Linfo_string1:
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.asciz "y" # string offset=7
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.Linfo_string2:
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.asciz "var" # string offset=9
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.Linfo_string3:
|
||||
.asciz "int" # string offset=13
|
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.Linfo_string4:
|
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.asciz "_Z2f1v" # string offset=17
|
||||
.Linfo_string5:
|
||||
.asciz "f1" # string offset=24
|
||||
.Linfo_string6:
|
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.asciz "main" # string offset=27
|
||||
.Linfo_string7:
|
||||
.asciz "_ZL1xv" # string offset=32
|
||||
.Linfo_string8:
|
||||
.asciz "x" # string offset=39
|
||||
.Linfo_string9:
|
||||
.asciz "clang version 13.0.0" # string offset=41
|
||||
.Linfo_string10:
|
||||
.asciz "test2.cpp" # string offset=146
|
||||
.Linfo_string11:
|
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.asciz "test2.dwo" # string offset=156
|
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.section .debug_str_offsets.dwo,"e",@progbits
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.long 0
|
||||
.long 7
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.long 9
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||||
.long 13
|
||||
.long 17
|
||||
.long 24
|
||||
.long 27
|
||||
.long 32
|
||||
.long 39
|
||||
.long 41
|
||||
.long 146
|
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.long 156
|
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.section .debug_info.dwo,"e",@progbits
|
||||
.long .Ldebug_info_dwo_end0-.Ldebug_info_dwo_start0 # Length of Unit
|
||||
.Ldebug_info_dwo_start0:
|
||||
.short 4 # DWARF version number
|
||||
.long 0 # Offset Into Abbrev. Section
|
||||
.byte 8 # Address Size (in bytes)
|
||||
.byte 1 # Abbrev [1] 0xb:0x5c DW_TAG_compile_unit
|
||||
.byte 9 # DW_AT_producer
|
||||
.short 33 # DW_AT_language
|
||||
.byte 10 # DW_AT_name
|
||||
.byte 11 # DW_AT_GNU_dwo_name
|
||||
.quad -6064033601213906696 # DW_AT_GNU_dwo_id
|
||||
.byte 2 # Abbrev [2] 0x19:0xf DW_TAG_subprogram
|
||||
.byte 0 # DW_AT_linkage_name
|
||||
.byte 1 # DW_AT_name
|
||||
.byte 1 # DW_AT_decl_file
|
||||
.byte 3 # DW_AT_decl_line
|
||||
.byte 1 # DW_AT_inline
|
||||
.byte 3 # Abbrev [3] 0x1f:0x8 DW_TAG_variable
|
||||
.byte 2 # DW_AT_name
|
||||
.byte 1 # DW_AT_decl_file
|
||||
.byte 4 # DW_AT_decl_line
|
||||
.long 40 # DW_AT_type
|
||||
.byte 0 # End Of Children Mark
|
||||
.byte 4 # Abbrev [4] 0x28:0x4 DW_TAG_base_type
|
||||
.byte 3 # DW_AT_name
|
||||
.byte 5 # DW_AT_encoding
|
||||
.byte 4 # DW_AT_byte_size
|
||||
.byte 5 # Abbrev [5] 0x2c:0x29 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_GNU_all_call_sites
|
||||
.byte 6 # DW_AT_name
|
||||
.byte 1 # DW_AT_decl_file
|
||||
.byte 8 # DW_AT_decl_line
|
||||
.long 40 # DW_AT_type
|
||||
# DW_AT_external
|
||||
.byte 6 # Abbrev [6] 0x3b:0xd DW_TAG_inlined_subroutine
|
||||
.long 25 # DW_AT_abstract_origin
|
||||
.byte 1 # DW_AT_low_pc
|
||||
.long .Ltmp2-.Ltmp1 # DW_AT_high_pc
|
||||
.byte 1 # DW_AT_call_file
|
||||
.byte 10 # DW_AT_call_line
|
||||
.byte 3 # DW_AT_call_column
|
||||
.byte 7 # Abbrev [7] 0x48:0x6 DW_TAG_GNU_call_site
|
||||
.long 85 # DW_AT_abstract_origin
|
||||
.byte 1 # DW_AT_low_pc
|
||||
.byte 7 # Abbrev [7] 0x4e:0x6 DW_TAG_GNU_call_site
|
||||
.long 90 # DW_AT_abstract_origin
|
||||
.byte 2 # DW_AT_low_pc
|
||||
.byte 0 # End Of Children Mark
|
||||
.byte 8 # Abbrev [8] 0x55:0x5 DW_TAG_subprogram
|
||||
.byte 4 # DW_AT_linkage_name
|
||||
.byte 5 # DW_AT_name
|
||||
.byte 1 # DW_AT_decl_file
|
||||
.byte 7 # DW_AT_decl_line
|
||||
# DW_AT_declaration
|
||||
# DW_AT_external
|
||||
.byte 9 # Abbrev [9] 0x5a:0xc DW_TAG_subprogram
|
||||
.byte 3 # 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
|
||||
.byte 7 # DW_AT_linkage_name
|
||||
.byte 8 # DW_AT_name
|
||||
.byte 1 # DW_AT_decl_file
|
||||
.byte 1 # DW_AT_decl_line
|
||||
.byte 0 # End Of Children Mark
|
||||
.Ldebug_info_dwo_end0:
|
||||
.section .debug_abbrev.dwo,"e",@progbits
|
||||
.byte 1 # Abbreviation Code
|
||||
.byte 17 # DW_TAG_compile_unit
|
||||
.byte 1 # DW_CHILDREN_yes
|
||||
.byte 37 # DW_AT_producer
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 19 # DW_AT_language
|
||||
.byte 5 # DW_FORM_data2
|
||||
.byte 3 # DW_AT_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.ascii "\260B" # DW_AT_GNU_dwo_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.ascii "\261B" # DW_AT_GNU_dwo_id
|
||||
.byte 7 # DW_FORM_data8
|
||||
.byte 0 # EOM(1)
|
||||
.byte 0 # EOM(2)
|
||||
.byte 2 # Abbreviation Code
|
||||
.byte 46 # DW_TAG_subprogram
|
||||
.byte 1 # DW_CHILDREN_yes
|
||||
.byte 110 # DW_AT_linkage_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 3 # DW_AT_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 58 # DW_AT_decl_file
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 59 # DW_AT_decl_line
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 32 # DW_AT_inline
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 0 # EOM(1)
|
||||
.byte 0 # EOM(2)
|
||||
.byte 3 # Abbreviation Code
|
||||
.byte 52 # DW_TAG_variable
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 3 # DW_AT_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.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 36 # DW_TAG_base_type
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 3 # DW_AT_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.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 5 # Abbreviation Code
|
||||
.byte 46 # DW_TAG_subprogram
|
||||
.byte 1 # DW_CHILDREN_yes
|
||||
.byte 17 # DW_AT_low_pc
|
||||
.ascii "\201>" # DW_FORM_GNU_addr_index
|
||||
.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
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.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 6 # Abbreviation Code
|
||||
.byte 29 # DW_TAG_inlined_subroutine
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 49 # DW_AT_abstract_origin
|
||||
.byte 19 # DW_FORM_ref4
|
||||
.byte 17 # DW_AT_low_pc
|
||||
.ascii "\201>" # DW_FORM_GNU_addr_index
|
||||
.byte 18 # DW_AT_high_pc
|
||||
.byte 6 # DW_FORM_data4
|
||||
.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 7 # Abbreviation Code
|
||||
.ascii "\211\202\001" # DW_TAG_GNU_call_site
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 49 # DW_AT_abstract_origin
|
||||
.byte 19 # DW_FORM_ref4
|
||||
.byte 17 # DW_AT_low_pc
|
||||
.ascii "\201>" # DW_FORM_GNU_addr_index
|
||||
.byte 0 # EOM(1)
|
||||
.byte 0 # EOM(2)
|
||||
.byte 8 # Abbreviation Code
|
||||
.byte 46 # DW_TAG_subprogram
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 110 # DW_AT_linkage_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 3 # DW_AT_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 58 # DW_AT_decl_file
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 59 # DW_AT_decl_line
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 60 # DW_AT_declaration
|
||||
.byte 25 # DW_FORM_flag_present
|
||||
.byte 63 # DW_AT_external
|
||||
.byte 25 # DW_FORM_flag_present
|
||||
.byte 0 # EOM(1)
|
||||
.byte 0 # EOM(2)
|
||||
.byte 9 # Abbreviation Code
|
||||
.byte 46 # DW_TAG_subprogram
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 17 # DW_AT_low_pc
|
||||
.ascii "\201>" # DW_FORM_GNU_addr_index
|
||||
.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 110 # DW_AT_linkage_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 3 # DW_AT_name
|
||||
.ascii "\202>" # DW_FORM_GNU_str_index
|
||||
.byte 58 # DW_AT_decl_file
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 59 # DW_AT_decl_line
|
||||
.byte 11 # DW_FORM_data1
|
||||
.byte 0 # EOM(1)
|
||||
.byte 0 # EOM(2)
|
||||
.byte 0 # EOM(3)
|
||||
104
test/tools/llvm-dwarfdump/X86/Inputs/split-dwarf.s
Normal file
104
test/tools/llvm-dwarfdump/X86/Inputs/split-dwarf.s
Normal file
@ -0,0 +1,104 @@
|
||||
.text
|
||||
.file "main.cpp"
|
||||
.globl _Z2f1v # -- Begin function _Z2f1v
|
||||
.p2align 4, 0x90
|
||||
.type _Z2f1v,@function
|
||||
_Z2f1v: # @_Z2f1v
|
||||
.Lfunc_begin0:
|
||||
.file 1 "./" "main.cpp"
|
||||
.loc 1 7 0 # main.cpp:7:0
|
||||
.cfi_startproc
|
||||
# %bb.0: # %entry
|
||||
pushq %rax
|
||||
.cfi_def_cfa_offset 16
|
||||
.Ltmp0:
|
||||
.loc 1 5 3 prologue_end # main.cpp:5:3
|
||||
callq _ZL1xv
|
||||
.Ltmp1:
|
||||
.loc 1 9 1 # main.cpp:9:1
|
||||
popq %rax
|
||||
.cfi_def_cfa_offset 8
|
||||
retq
|
||||
.Ltmp2:
|
||||
.Lfunc_end0:
|
||||
.size _Z2f1v, .Lfunc_end0-_Z2f1v
|
||||
.cfi_endproc
|
||||
# -- End function
|
||||
.p2align 4, 0x90 # -- Begin function _ZL1xv
|
||||
.type _ZL1xv,@function
|
||||
_ZL1xv: # @_ZL1xv
|
||||
.Lfunc_begin1:
|
||||
.loc 1 1 0 # main.cpp:1:0
|
||||
.cfi_startproc
|
||||
# %bb.0: # %entry
|
||||
.loc 1 2 1 prologue_end # main.cpp:2:1
|
||||
retq
|
||||
.Ltmp3:
|
||||
.Lfunc_end1:
|
||||
.size _ZL1xv, .Lfunc_end1-_ZL1xv
|
||||
.cfi_endproc
|
||||
# -- End function
|
||||
.section .debug_abbrev,"",@progbits
|
||||
.byte 1 # Abbreviation Code
|
||||
.byte 17 # DW_TAG_compile_unit
|
||||
.byte 0 # DW_CHILDREN_no
|
||||
.byte 16 # DW_AT_stmt_list
|
||||
.byte 23 # DW_FORM_sec_offset
|
||||
.byte 27 # DW_AT_comp_dir
|
||||
.byte 14 # DW_FORM_strp
|
||||
.ascii "\264B" # DW_AT_GNU_pubnames
|
||||
.byte 25 # DW_FORM_flag_present
|
||||
.ascii "\260B" # DW_AT_GNU_dwo_name
|
||||
.byte 14 # DW_FORM_strp
|
||||
.ascii "\261B" # DW_AT_GNU_dwo_id
|
||||
.byte 7 # DW_FORM_data8
|
||||
.byte 17 # DW_AT_low_pc
|
||||
.byte 1 # DW_FORM_addr
|
||||
.byte 18 # DW_AT_high_pc
|
||||
.byte 6 # DW_FORM_data4
|
||||
.ascii "\263B" # DW_AT_GNU_addr_base
|
||||
.byte 23 # DW_FORM_sec_offset
|
||||
.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:0x25 DW_TAG_compile_unit
|
||||
.long .Lline_table_start0 # DW_AT_stmt_list
|
||||
.long .Lskel_string0 # DW_AT_comp_dir
|
||||
# DW_AT_GNU_pubnames
|
||||
.long .Lskel_string1 # DW_AT_GNU_dwo_name
|
||||
.quad -7114235821576765290 # DW_AT_GNU_dwo_id
|
||||
.quad .Lfunc_begin0 # DW_AT_low_pc
|
||||
.long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc
|
||||
.Ldebug_info_end0:
|
||||
.section .debug_info,"",@progbits
|
||||
.Lcu_begin1:
|
||||
.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 1 # Abbrev [1] 0xb:0x25 DW_TAG_compile_unit
|
||||
.long .Lline_table_start0 # DW_AT_stmt_list
|
||||
.long .Lskel_string0 # DW_AT_comp_dir
|
||||
# DW_AT_GNU_pubnames
|
||||
.long .Lskel_string2 # DW_AT_GNU_dwo_name
|
||||
.quad -6064033601213906696 # DW_AT_GNU_dwo_id
|
||||
.quad .Lfunc_begin0 # DW_AT_low_pc
|
||||
.long .Lfunc_end1-.Lfunc_begin0 # DW_AT_high_pc
|
||||
.Ldebug_info_end1:
|
||||
.section .debug_str,"MS",@progbits,1
|
||||
.Lskel_string0:
|
||||
.asciz "./" # string offset=0
|
||||
.Lskel_string1:
|
||||
.asciz "test1.dwo" # string offset=82
|
||||
.Lskel_string2:
|
||||
.asciz "test2.dwo" # string offset=82
|
||||
|
||||
.Lline_table_start0:
|
||||
@ -0,0 +1,41 @@
|
||||
## This checks the number of inlined variables with 0% location
|
||||
## coverage in split dwarf cases.
|
||||
## $ cat test1.cpp
|
||||
## __attribute__((optnone)) static void x() {
|
||||
## }
|
||||
## __attribute__((always_inline)) static void y() {
|
||||
## int var;
|
||||
## x();
|
||||
## }
|
||||
## void f1() {
|
||||
## y();
|
||||
## }
|
||||
##
|
||||
## $ cat test2.cpp
|
||||
## __attribute__((optnone)) static void x() {
|
||||
## }
|
||||
## __attribute__((always_inline)) static void y() {
|
||||
## int var;
|
||||
## x();
|
||||
## }
|
||||
## void f1();
|
||||
## int main() {
|
||||
## f1();
|
||||
## y();
|
||||
## }
|
||||
## $ clang++ -O1 -g -gsplit-dwarf test2.cpp test1.cpp -S
|
||||
## The split-dwarf.s was handcrafted.
|
||||
|
||||
REQUIRES: x86_64-linux
|
||||
RUN: rm -rf %t
|
||||
RUN: mkdir %t
|
||||
RUN: cd %t
|
||||
RUN: llvm-mc -triple x86_64-unknown-linux -filetype=obj %S/Inputs/split-dwarf-objfile1.s -o test1.dwo
|
||||
RUN: llvm-mc -triple x86_64-unknown-linux -filetype=obj %S/Inputs/split-dwarf-objfile2.s -o test2.dwo
|
||||
RUN: llvm-mc -triple x86_64-unknown-linux -filetype=obj %S/Inputs/split-dwarf.s -o split-dwarf.o
|
||||
RUN: llvm-dwarfdump --statistics split-dwarf.o | FileCheck %s
|
||||
|
||||
CHECK: "#variables processed by location statistics": 2
|
||||
CHECK: "#variables with 0% of parent scope covered by DW_AT_location": 2
|
||||
CHECK: "#local vars processed by location statistics": 2
|
||||
CHECK: "#local vars with 0% of parent scope covered by DW_AT_location": 2
|
||||
@ -714,11 +714,19 @@ bool dwarfdump::collectStatsForObjectFile(ObjectFile &Obj, DWARFContext &DICtx,
|
||||
StringRef FormatName = Obj.getFileFormatName();
|
||||
GlobalStats GlobalStats;
|
||||
LocationStats LocStats;
|
||||
InlinedVarsTyMap GlobalInlinedFnInfo;
|
||||
InlinedFnInstacesTy InlinedFnsToBeProcessed;
|
||||
StringMap<PerFunctionStats> Statistics;
|
||||
for (const auto &CU : static_cast<DWARFContext *>(&DICtx)->compile_units()) {
|
||||
if (DWARFDie CUDie = CU->getNonSkeletonUnitDIE(false)) {
|
||||
// These variables are being reset for each CU, since there could be
|
||||
// a situation where we have two subprogram DIEs with the same offsets
|
||||
// in two diferent CUs, and we can end up using wrong variables info
|
||||
// when trying to resolve abstract_orign attribute.
|
||||
// TODO: Handle LTO cases where the abstract origin of
|
||||
// the function is in a different CU than the one it's
|
||||
// referenced from or inlined into.
|
||||
InlinedVarsTyMap GlobalInlinedFnInfo;
|
||||
InlinedFnInstacesTy InlinedFnsToBeProcessed;
|
||||
|
||||
collectStatsRecursive(CUDie, "/", "g", 0, 0, Statistics, GlobalStats,
|
||||
LocStats, GlobalInlinedFnInfo,
|
||||
InlinedFnsToBeProcessed);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user