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[dwarfdump] Make -c and -p work together

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When requesting to dump both the parent chain and children, we used to
print the DIE more than once because we propagated the dump options to
the parent without clearing the respective flags. This commit fixes this
oversight and adds a test.

rdar://39415292

Differential revision: https://reviews.llvm.org/D47263

llvm-svn: 333350
This commit is contained in:
Jonas Devlieghere 2018-05-26 19:39:56 +00:00
parent c37925ce27
commit e42a0f11bc
2 changed files with 316 additions and 3 deletions
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10
lib/DebugInfo/DWARF/DWARFDie.cpp
View File

@ -475,8 +475,10 @@ void DWARFDie::dump(raw_ostream &OS, unsigned Indent,
const uint32_t Offset = getOffset();
uint32_t offset = Offset;
if (DumpOpts.ShowParents) {
DumpOpts.ShowParents = false;
Indent = dumpParentChain(getParent(), OS, Indent, DumpOpts);
DIDumpOptions ParentDumpOpts = DumpOpts;
ParentDumpOpts.ShowParents = false;
ParentDumpOpts.ShowChildren = false;
Indent = dumpParentChain(getParent(), OS, Indent, ParentDumpOpts);
}
if (debug_info_data.isValidOffset(offset)) {
@ -510,8 +512,10 @@ void DWARFDie::dump(raw_ostream &OS, unsigned Indent,
DWARFDie child = getFirstChild();
if (DumpOpts.ShowChildren && DumpOpts.RecurseDepth > 0 && child) {
DumpOpts.RecurseDepth--;
DIDumpOptions ChildDumpOpts = DumpOpts;
ChildDumpOpts.ShowParents = false;
while (child) {
child.dump(OS, Indent + 2, DumpOpts);
child.dump(OS, Indent + 2, ChildDumpOpts);
child = child.getSibling();
}
}

309
test/tools/llvm-dwarfdump/X86/enum.s Normal file
View File

@ -0,0 +1,309 @@
# RUN: llvm-mc -triple x86_64-apple-darwin %s -filetype=obj -o %t
# RUN: llvm-dwarfdump --debug-info=0x0000002a -p %t | FileCheck %s --check-prefix=PARENTS
# RUN: llvm-dwarfdump --debug-info=0x0000002a -c %t | FileCheck %s --check-prefix=CHILDREN
# RUN: llvm-dwarfdump --debug-info=0x0000002a -p -c %t | FileCheck %s --check-prefix=BOTH
# PARENTS: DW_TAG_compile_unit
# PARENTS: DW_TAG_enumeration_type
# PARENTS-NOT: DW_TAG_enumerator
# CHILDREN-NOT: DW_TAG_compile_unit
# CHILDREN: DW_TAG_enumerator
# CHILDREN: DW_AT_name ("first")
# CHILDREN: DW_TAG_enumerator
# CHILDREN: DW_AT_name ("second")
# BOTH: DW_TAG_compile_unit
# BOTH: DW_TAG_enumeration_type
# BOTH: DW_TAG_enumerator
# BOTH: DW_AT_name ("first")
# BOTH: DW_TAG_enumerator
# BOTH: DW_AT_name ("second")
# BOTH-NOT: DW_TAG_compile_unit
# BOTH-NOT: DW_TAG_enumeration_type
# BOTH-NOT: DW_TAG_enumerator
.section __TEXT,__text,regular,pure_instructions
.file 1 "/private/tmp" "/tmp/enum.c"
.globl _main ## -- Begin function main
.p2align 4, 0x90
_main: ## @main
Lfunc_begin0:
.loc 1 4 0 ## /tmp/enum.c:4:0
.cfi_startproc
## %bb.0: ## %entry
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset %rbp, -16
movq %rsp, %rbp
.cfi_def_cfa_register %rbp
movl $0, -4(%rbp)
Ltmp0:
.loc 1 5 7 prologue_end ## /tmp/enum.c:5:7
movl $0, -8(%rbp)
.loc 1 6 10 ## /tmp/enum.c:6:10
movl -8(%rbp), %eax
.loc 1 6 3 is_stmt 0 ## /tmp/enum.c:6:3
popq %rbp
retq
Ltmp1:
Lfunc_end0:
.cfi_endproc
## -- End function
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "clang version 7.0.0 " ## string offset=0
.asciz "/tmp/enum.c" ## string offset=21
.asciz "/private/tmp" ## string offset=33
.asciz "unsigned int" ## string offset=46
.asciz "first" ## string offset=59
.asciz "second" ## string offset=65
.asciz "main" ## string offset=72
.asciz "int" ## string offset=77
.asciz "var" ## string offset=81
.section __DWARF,__debug_abbrev,regular,debug
Lsection_abbrev:
.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 18 ## DW_AT_high_pc
.byte 6 ## DW_FORM_data4
.byte 0 ## EOM(1)
.byte 0 ## EOM(2)
.byte 2 ## Abbreviation Code
.byte 4 ## DW_TAG_enumeration_type
.byte 1 ## DW_CHILDREN_yes
.byte 73 ## DW_AT_type
.byte 19 ## DW_FORM_ref4
.byte 11 ## DW_AT_byte_size
.byte 11 ## DW_FORM_data1
.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 3 ## Abbreviation Code
.byte 40 ## DW_TAG_enumerator
.byte 0 ## DW_CHILDREN_no
.byte 3 ## DW_AT_name
.byte 14 ## DW_FORM_strp
.byte 28 ## DW_AT_const_value
.byte 15 ## DW_FORM_udata
.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
.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 5 ## Abbreviation Code
.byte 46 ## DW_TAG_subprogram
.byte 1 ## DW_CHILDREN_yes
.byte 17 ## DW_AT_low_pc
.byte 1 ## DW_FORM_addr
.byte 18 ## DW_AT_high_pc
.byte 6 ## DW_FORM_data4
.byte 64 ## DW_AT_frame_base
.byte 24 ## DW_FORM_exprloc
.byte 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 6 ## Abbreviation Code
.byte 52 ## DW_TAG_variable
.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 0 ## EOM(3)
.section __DWARF,__debug_info,regular,debug
Lsection_info:
Lcu_begin0:
.long 114 ## Length of Unit
.short 4 ## DWARF version number
.set Lset0, Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
.long Lset0
.byte 8 ## Address Size (in bytes)
.byte 1 ## Abbrev [1] 0xb:0x6b DW_TAG_compile_unit
.long 0 ## DW_AT_producer
.short 12 ## DW_AT_language
.long 21 ## DW_AT_name
.set Lset1, Lline_table_start0-Lsection_line ## DW_AT_stmt_list
.long Lset1
.long 33 ## DW_AT_comp_dir
.quad Lfunc_begin0 ## DW_AT_low_pc
.set Lset2, Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc
.long Lset2
.byte 2 ## Abbrev [2] 0x2a:0x15 DW_TAG_enumeration_type
.long 63 ## DW_AT_type
.byte 4 ## DW_AT_byte_size
.byte 1 ## DW_AT_decl_file
.byte 1 ## DW_AT_decl_line
.byte 3 ## Abbrev [3] 0x32:0x6 DW_TAG_enumerator
.long 59 ## DW_AT_name
.byte 0 ## DW_AT_const_value
.byte 3 ## Abbrev [3] 0x38:0x6 DW_TAG_enumerator
.long 65 ## DW_AT_name
.byte 1 ## DW_AT_const_value
.byte 0 ## End Of Children Mark
.byte 4 ## Abbrev [4] 0x3f:0x7 DW_TAG_base_type
.long 46 ## DW_AT_name
.byte 7 ## DW_AT_encoding
.byte 4 ## DW_AT_byte_size
.byte 5 ## Abbrev [5] 0x46:0x28 DW_TAG_subprogram
.quad Lfunc_begin0 ## DW_AT_low_pc
.set Lset3, Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc
.long Lset3
.byte 1 ## DW_AT_frame_base
.byte 86
.long 72 ## DW_AT_name
.byte 1 ## DW_AT_decl_file
.byte 3 ## DW_AT_decl_line
.long 110 ## DW_AT_type
## DW_AT_external
.byte 6 ## Abbrev [6] 0x5f:0xe DW_TAG_variable
.byte 2 ## DW_AT_location
.byte 145
.byte 120
.long 81 ## DW_AT_name
.byte 1 ## DW_AT_decl_file
.byte 5 ## DW_AT_decl_line
.long 110 ## DW_AT_type
.byte 0 ## End Of Children Mark
.byte 4 ## Abbrev [4] 0x6e:0x7 DW_TAG_base_type
.long 77 ## DW_AT_name
.byte 5 ## DW_AT_encoding
.byte 4 ## DW_AT_byte_size
.byte 0 ## End Of Children Mark
.section __DWARF,__debug_ranges,regular,debug
Ldebug_range:
.section __DWARF,__debug_macinfo,regular,debug
Ldebug_macinfo:
.byte 0 ## End Of Macro List Mark
.section __DWARF,__apple_names,regular,debug
Lnames_begin:
.long 1212240712 ## Header Magic
.short 1 ## Header Version
.short 0 ## Header Hash Function
.long 1 ## Header Bucket Count
.long 1 ## Header Hash Count
.long 12 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 1 ## HeaderData Atom Count
.short 1 ## DW_ATOM_die_offset
.short 6 ## DW_FORM_data4
.long 0 ## Bucket 0
.long 2090499946 ## Hash in Bucket 0
.set Lset4, LNames0-Lnames_begin ## Offset in Bucket 0
.long Lset4
LNames0:
.long 72 ## main
.long 1 ## Num DIEs
.long 70
.long 0
.section __DWARF,__apple_objc,regular,debug
Lobjc_begin:
.long 1212240712 ## Header Magic
.short 1 ## Header Version
.short 0 ## Header Hash Function
.long 1 ## Header Bucket Count
.long 0 ## Header Hash Count
.long 12 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 1 ## HeaderData Atom Count
.short 1 ## DW_ATOM_die_offset
.short 6 ## DW_FORM_data4
.long -1 ## Bucket 0
.section __DWARF,__apple_namespac,regular,debug
Lnamespac_begin:
.long 1212240712 ## Header Magic
.short 1 ## Header Version
.short 0 ## Header Hash Function
.long 1 ## Header Bucket Count
.long 0 ## Header Hash Count
.long 12 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 1 ## HeaderData Atom Count
.short 1 ## DW_ATOM_die_offset
.short 6 ## DW_FORM_data4
.long -1 ## Bucket 0
.section __DWARF,__apple_types,regular,debug
Ltypes_begin:
.long 1212240712 ## Header Magic
.short 1 ## Header Version
.short 0 ## Header Hash Function
.long 2 ## Header Bucket Count
.long 2 ## Header Hash Count
.long 20 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 3 ## HeaderData Atom Count
.short 1 ## DW_ATOM_die_offset
.short 6 ## DW_FORM_data4
.short 3 ## DW_ATOM_die_tag
.short 5 ## DW_FORM_data2
.short 4 ## DW_ATOM_type_flags
.short 11 ## DW_FORM_data1
.long 0 ## Bucket 0
.long 1 ## Bucket 1
.long 193495088 ## Hash in Bucket 0
.long -1304652851 ## Hash in Bucket 1
.set Lset5, Ltypes1-Ltypes_begin ## Offset in Bucket 0
.long Lset5
.set Lset6, Ltypes0-Ltypes_begin ## Offset in Bucket 1
.long Lset6
Ltypes1:
.long 77 ## int
.long 1 ## Num DIEs
.long 110
.short 36
.byte 0
.long 0
Ltypes0:
.long 46 ## unsigned int
.long 1 ## Num DIEs
.long 63
.short 36
.byte 0
.long 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0: