maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[DWARF] Added verification checks for the .apple_names section. 

This patch verifies the number of atoms, the validity of the form for each atom, as well as the validity of the
hashdata. For hashdata, we're verifying that the hashdata offset is correct and that the offset in the .debug_info for
each DIE in the hashdata is also valid.

llvm-svn: 306735
This commit is contained in:
Spyridoula Gravani 2017-06-29 20:13:05 +00:00
parent 3f984ecb45
commit 837c110cb1
11 changed files with 336 additions and 369 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
llvm/include/llvm/BinaryFormat/Dwarf.h
View File

@ -62,6 +62,9 @@ enum LLVMConstants : uint32_t {
const uint32_t DW_CIE_ID = UINT32_MAX;
const uint64_t DW64_CIE_ID = UINT64_MAX;
// Identifier of an invalid DIE offset in the .debug_info section.
const uint32_t DW_INVALID_OFFSET = UINT32_MAX;
enum Tag : uint16_t {
#define HANDLE_DW_TAG(ID, NAME, VERSION, VENDOR) DW_TAG_##NAME = ID,
#include "llvm/BinaryFormat/Dwarf.def"

12
llvm/include/llvm/DebugInfo/DWARF/DWARFAcceleratorTable.h
View File

@ -54,6 +54,18 @@ public:
uint32_t getNumHashes();
uint32_t getSizeHdr();
uint32_t getHeaderDataLength();
ArrayRef<std::pair<HeaderData::AtomType, HeaderData::Form>> getAtomsDesc();
bool validateForms();
/// Return information related to the DWARF DIE we're looking for when
/// performing a lookup by name.
///
/// \param HashDataOffset an offset into the hash data table
/// \returns DIEOffset the offset into the .debug_info section for the DIE
/// related to the input hash data offset. Currently this function returns
/// only the DIEOffset but it can be modified to return more data regarding
/// the DIE
uint32_t readAtoms(uint32_t &HashDataOffset);
void dump(raw_ostream &OS) const;
};

39
llvm/lib/DebugInfo/DWARF/DWARFAcceleratorTable.cpp
View File

@ -62,6 +62,45 @@ uint32_t DWARFAcceleratorTable::getHeaderDataLength() {
return Hdr.HeaderDataLength;
}
ArrayRef<std::pair<DWARFAcceleratorTable::HeaderData::AtomType,
DWARFAcceleratorTable::HeaderData::Form>>
DWARFAcceleratorTable::getAtomsDesc() {
return HdrData.Atoms;
}
bool DWARFAcceleratorTable::validateForms() {
for (auto Atom : getAtomsDesc()) {
DWARFFormValue FormValue(Atom.second);
switch (Atom.first) {
case dwarf::DW_ATOM_die_offset:
if ((!FormValue.isFormClass(DWARFFormValue::FC_Constant) &&
!FormValue.isFormClass(DWARFFormValue::FC_Flag)) ||
FormValue.getForm() == dwarf::DW_FORM_sdata)
return false;
default:
break;
}
}
return true;
}
uint32_t DWARFAcceleratorTable::readAtoms(uint32_t &HashDataOffset) {
uint32_t DieOffset = dwarf::DW_INVALID_OFFSET;
for (auto Atom : getAtomsDesc()) {
DWARFFormValue FormValue(Atom.second);
FormValue.extractValue(AccelSection, &HashDataOffset, NULL);
switch (Atom.first) {
case dwarf::DW_ATOM_die_offset:
DieOffset = *FormValue.getAsUnsignedConstant();
break;
default:
break;
}
}
return DieOffset;
}
LLVM_DUMP_METHOD void DWARFAcceleratorTable::dump(raw_ostream &OS) const {
// Dump the header.
OS << "Magic = " << format("0x%08x", Hdr.Magic) << '\n'

66
llvm/lib/DebugInfo/DWARF/DWARFVerifier.cpp
View File

@ -291,20 +291,80 @@ bool DWARFVerifier::handleAppleNames() {
OS << "Verifying .apple_names...\n";
// Verify that all buckets have a valid hash index or are empty
// Verify that all buckets have a valid hash index or are empty.
uint32_t NumBuckets = AppleNames.getNumBuckets();
uint32_t NumHashes = AppleNames.getNumHashes();
uint32_t BucketsOffset =
AppleNames.getSizeHdr() + AppleNames.getHeaderDataLength();
uint32_t HashesBase = BucketsOffset + NumBuckets * 4;
uint32_t OffsetsBase = HashesBase + NumHashes * 4;
for (uint32_t BucketIdx = 0; BucketIdx < NumBuckets; ++BucketIdx) {
uint32_t HashIdx = AppleNamesSection.getU32(&BucketsOffset);
if (HashIdx >= NumHashes && HashIdx != UINT32_MAX) {
OS << format("error: Bucket[%d] has invalid hash index: [%d]\n",
BucketIdx, HashIdx);
OS << format("error: Bucket[%d] has invalid hash index: %u\n", BucketIdx,
HashIdx);
++NumAppleNamesErrors;
}
}
uint32_t NumAtoms = AppleNames.getAtomsDesc().size();
if (NumAtoms == 0) {
OS << "error: no atoms; failed to read HashData\n";
++NumAppleNamesErrors;
return false;
}
if (!AppleNames.validateForms()) {
OS << "error: unsupported form; failed to read HashData\n";
++NumAppleNamesErrors;
return false;
}
for (uint32_t HashIdx = 0; HashIdx < NumHashes; ++HashIdx) {
uint32_t HashOffset = HashesBase + 4 * HashIdx;
uint32_t DataOffset = OffsetsBase + 4 * HashIdx;
uint32_t Hash = AppleNamesSection.getU32(&HashOffset);
uint32_t HashDataOffset = AppleNamesSection.getU32(&DataOffset);
if (!AppleNamesSection.isValidOffsetForDataOfSize(HashDataOffset,
sizeof(uint64_t))) {
OS << format("error: Hash[%d] has invalid HashData offset: 0x%08x\n",
HashIdx, HashDataOffset);
++NumAppleNamesErrors;
}
uint32_t StrpOffset;
uint32_t StringOffset;
uint32_t StringCount = 0;
uint32_t DieOffset = dwarf::DW_INVALID_OFFSET;
while ((StrpOffset = AppleNamesSection.getU32(&HashDataOffset)) != 0) {
const uint32_t NumHashDataObjects =
AppleNamesSection.getU32(&HashDataOffset);
for (uint32_t HashDataIdx = 0; HashDataIdx < NumHashDataObjects;
++HashDataIdx) {
DieOffset = AppleNames.readAtoms(HashDataOffset);
if (!DCtx.getDIEForOffset(DieOffset)) {
const uint32_t BucketIdx =
NumBuckets ? (Hash % NumBuckets) : UINT32_MAX;
StringOffset = StrpOffset;
const char *Name = StrData.getCStr(&StringOffset);
if (!Name)
Name = "<NULL>";
OS << format(
"error: .apple_names Bucket[%d] Hash[%d] = 0x%08x "
"Str[%u] = 0x%08x "
"DIE[%d] = 0x%08x is not a valid DIE offset for \"%s\".\n",
BucketIdx, HashIdx, Hash, StringCount, StrpOffset, HashDataIdx,
DieOffset, Name);
++NumAppleNamesErrors;
}
}
++StringCount;
}
}
return NumAppleNamesErrors == 0;
}

5
llvm/test/DebugInfo/dwarfdump-accel.test
View File

@ -1,4 +1,5 @@
RUN: llvm-dwarfdump %p/Inputs/dwarfdump-objc.x86_64.o | FileCheck %s
RUN: llvm-dwarfdump -verify %p/Inputs/dwarfdump-objc.x86_64.o | FileCheck %s --check-prefix=VERIFY
Gather some DIE indexes to verify the accelerator table contents.
CHECK: .debug_info contents
@ -63,3 +64,7 @@ CHECK-NOT: Name
CHECK: {Atom[0]: [[READONLY]]}
CHECK: {Atom[0]: [[ASSIGN]]}
CHECK: {Atom[0]: [[SETASSIGN]]}
Verify the debug info in the apple_names accelerator table.
VERIFY: Verifying .apple_names
VERIFY-NEXT: No errors.

192
llvm/test/tools/llvm-dwarfdump/X86/apple_names_verify_buckets.s
View File

@ -1,192 +0,0 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN: | not llvm-dwarfdump -verify - \
# RUN: | FileCheck %s
# CHECK: Verifying .apple_names...
# CHECK-NEXT: error: Bucket[0] has invalid hash index: [-2]
# This test is meant to verify that the -verify option
# in llvm-dwarfdump, correctly identifies
# an invalid hash index for bucket[0] in the .apple_names section.
.section __TEXT,__text,regular,pure_instructions
.file 1 "basic.c"
.comm _i,4,2 ## @i
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "basic.c" ## string offset=42
.asciz "i" ## string offset=84
.asciz "int" ## string offset=86
.section __DWARF,__debug_loc,regular,debug
Lsection_debug_loc:
.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 0 ## EOM(1)
.byte 0 ## EOM(2)
.byte 2 ## Abbreviation Code
.byte 52 ## DW_TAG_variable
.byte 0 ## DW_CHILDREN_no
.byte 3 ## DW_AT_name
.byte 14 ## DW_FORM_strp
.byte 73 ## DW_AT_type
.byte 19 ## DW_FORM_ref4
.byte 63 ## DW_AT_external
.byte 25 ## DW_FORM_flag_present
.byte 58 ## DW_AT_decl_file
.byte 11 ## DW_FORM_data1
.byte 59 ## DW_AT_decl_line
.byte 11 ## DW_FORM_data1
.byte 2 ## DW_AT_location
.byte 24 ## DW_FORM_exprloc
.byte 0 ## EOM(1)
.byte 0 ## EOM(2)
.byte 3 ## 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 0 ## EOM(3)
.section __DWARF,__debug_info,regular,debug
Lsection_info:
Lcu_begin0:
.long 55 ## Length of Unit
.short 4 ## DWARF version number
Lset0 = Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
.long Lset0
.byte 8 ## Address Size (in bytes)
.byte 1 ## Abbrev [1] 0xb:0x30 DW_TAG_compile_unit
.long 0 ## DW_AT_producer
.short 12 ## DW_AT_language
.long 42 ## DW_AT_name
Lset1 = Lline_table_start0-Lsection_line ## DW_AT_stmt_list
.long Lset1
.long 50 ## DW_AT_comp_dir
.byte 2 ## Abbrev [2] 0x1e:0x15 DW_TAG_variable
.long 84 ## DW_AT_name
.long 51 ## DW_AT_type
## DW_AT_external
.byte 1 ## DW_AT_decl_file
.byte 1 ## DW_AT_decl_line
.byte 9 ## DW_AT_location
.byte 3
.quad _i
.byte 3 ## Abbrev [3] 0x33:0x7 DW_TAG_base_type
.long 86 ## 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:
Lcu_macro_begin0:
.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 -2 ## Bucket 0 -- error: Bucket[0] has invalid hash index: [-2]
.long 177678 ## Hash in Bucket 0
.long LNames0-Lnames_begin ## Offset in Bucket 0
LNames0:
.long 84 ## i
.long 1 ## Num DIEs
.long 30
.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 1 ## Header Bucket Count
.long 1 ## 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 193495088 ## Hash in Bucket 0
.long Ltypes0-Ltypes_begin ## Offset in Bucket 0
Ltypes0:
.long 86 ## int
.long 1 ## Num DIEs
.long 51
.short 36
.byte 0
.long 0
.section __DWARF,__apple_exttypes,regular,debug
Lexttypes_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 7 ## DW_ATOM_ext_types
.short 6 ## DW_FORM_data4
.long -1 ## Bucket 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0:

64
llvm/test/tools/llvm-dwarfdump/X86/apple_names_verify_data.s Normal file
View File

@ -0,0 +1,64 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN: | not llvm-dwarfdump -verify - \
# RUN: | FileCheck %s
# CHECK: Verifying .apple_names...
# CHECK-NEXT: error: Bucket[0] has invalid hash index: 4294967294
# CHECK-NEXT: error: Hash[0] has invalid HashData offset: 0x000000b4
# CHECK-NEXT: error: .apple_names Bucket[1] Hash[1] = 0x0002b60f Str[0] = 0x0000005a DIE[0] = 0x00000001 is not a valid DIE offset for "j".
# This test is meant to verify that the -verify option
# in llvm-dwarfdump, correctly identifies
# an invalid hash index for bucket[0] in the .apple_names section,
# an invalid HashData offset for Hash[0], as well as
# an invalid DIE offset in the .debug_info section.
# We're reading an invalid DIE due to the incorrect interpretation of DW_FORM for the DIE.
# Instead of DW_FORM_data4 the Atom[0].form is: DW_FORM_flag_present.
.section __TEXT,__text,regular,pure_instructions
.file 1 "basic.c"
.comm _i,4,2 ## @i
.comm _j,4,2 ## @j
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "Apple LLVM version 8.1.0 (clang-802.0.35)" ## string offset=0
.asciz "basic.c" ## string offset=42
.asciz "/Users/sgravani/Development/tests" ## string offset=50
.asciz "i" ## string offset=84
.asciz "int" ## string offset=86
.asciz "j" ## string offset=90
.section __DWARF,__debug_info,regular,debug
Lsection_info:
.section __DWARF,__apple_names,regular,debug
Lnames_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 12 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 1 ## HeaderData Atom Count
.short 1 ## DW_ATOM_die_offset
.short 25 ## DW_FORM_data4 -- error: .apple_names Bucket[1] Hash[1] = 0x0002b60f Str[0] = 0x0000005a DIE[0] = 0x00000001 is not a valid DIE offset for "j".
.long -2 ## Bucket 0 -- error: Bucket[0] has invalid hash index: 4294967294
.long 1 ## Bucket 1
.long 177678 ## Hash in Bucket 0
.long 177679 ## Hash in Bucket 1
.long Lsection_line ## Offset in Bucket 0 -- error: Hash[0] has invalid HashData offset: 0x000000b4
.long LNames1-Lnames_begin ## Offset in Bucket 1
LNames0:
.long 84 ## i
.long 1 ## Num DIEs
.long 30
.long 0
LNames1:
.long 90 ## j
.long 1 ## Num DIEs
.long 58
.long 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0:

58
llvm/test/tools/llvm-dwarfdump/X86/apple_names_verify_form.s Normal file
View File

@ -0,0 +1,58 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN: | not llvm-dwarfdump -verify - \
# RUN: | FileCheck %s
# CHECK: Verifying .apple_names...
# CHECK-NEXT: error: unsupported form; failed to read HashData
# This test is meant to verify that the -verify option
# in llvm-dwarfdump, correctly identifies that Atom[0].form is unsupported.
# As a result, the hashdata cannot be read.
.section __TEXT,__text,regular,pure_instructions
.file 1 "basic.c"
.comm _i,4,2 ## @i
.comm _j,4,2 ## @j
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "Apple LLVM version 8.1.0 (clang-802.0.35)" ## string offset=0
.asciz "basic.c" ## string offset=42
.asciz "/Users/sgravani/Development/tests" ## string offset=50
.asciz "i" ## string offset=84
.asciz "int" ## string offset=86
.asciz "j" ## string offset=90
.section __DWARF,__debug_info,regular,debug
Lsection_info:
.section __DWARF,__apple_names,regular,debug
Lnames_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 12 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 1 ## HeaderData Atom Count
.short 1 ## DW_ATOM_die_offset
.short 400 ## DW_FORM_data4 -- error: unsupported form; failed to read HashData
.long 0 ## Bucket 0
.long 1 ## Bucket 1
.long 177678 ## Hash in Bucket 0
.long 177679 ## Hash in Bucket 1
.long LNames0-Lnames_begin ## Offset in Bucket 0
.long LNames1-Lnames_begin ## Offset in Bucket 1
LNames0:
.long 84 ## i
.long 1 ## Num DIEs
.long 30
.long 0
LNames1:
.long 90 ## j
.long 1 ## Num DIEs
.long 58
.long 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0:

59
llvm/test/tools/llvm-dwarfdump/X86/apple_names_verify_num_atoms.s Normal file
View File

@ -0,0 +1,59 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN: | not llvm-dwarfdump -verify - \
# RUN: | FileCheck %s
# CHECK: Verifying .apple_names...
# CHECK-NEXT: error: no atoms; failed to read HashData
# This test is meant to verify that the -verify option
# in llvm-dwarfdump, correctly identifies that there is not Atom.
# As a result, the hashdata cannot be read.
.section __TEXT,__text,regular,pure_instructions
.file 1 "basic.c"
.comm _i,4,2 ## @i
.comm _j,4,2 ## @j
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "Apple LLVM version 8.1.0 (clang-802.0.35)" ## string offset=0
.asciz "basic.c" ## string offset=42
.asciz "/Users/sgravani/Development/tests" ## string offset=50
.asciz "i" ## string offset=84
.asciz "int" ## string offset=86
.asciz "j" ## string offset=90
.section __DWARF,__debug_info,regular,debug
Lsection_info:
.section __DWARF,__apple_names,regular,debug
Lnames_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 12 ## Header Data Length
.long 0 ## HeaderData Die Offset Base
.long 0 ## HeaderData Atom Count -- error: no atoms; failed to read HashData
.short 1 ## DW_ATOM_die_offset
.short 6 ## DW_FORM_data4
.long 0 ## Bucket 0
.long 1 ## Bucket 1
.long 177678 ## Hash in Bucket 0
.long 177679 ## Hash in Bucket 1
.long LNames0-Lnames_begin ## Offset in Bucket 0
.long LNames1-Lnames_begin ## Offset in Bucket 1
LNames0:
.long 84 ## i
.long 1 ## Num DIEs
.long 30
.long 0
LNames1:
.long 90 ## j
.long 1 ## Num DIEs
.long 58
.long 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0:

33
llvm/test/tools/llvm-dwarfdump/X86/no_apple_names_verify.s Normal file
View File

@ -0,0 +1,33 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN: | llvm-dwarfdump -verify - \
# RUN: | FileCheck %s
# CHECK-NOT: Verifying .apple_names...
# This test is meant to verify that the -verify option
# in llvm-dwarfdump doesn't produce any .apple_names related
# output when there's no such section in the object.
# The test was manually modified to exclude the
# .apple_names section from the apple_names_verify_num_atoms.s
# test file in the same directory.
.section __TEXT,__text,regular,pure_instructions
.file 1 "basic.c"
.comm _i,4,2 ## @i
.comm _j,4,2 ## @j
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "Apple LLVM version 8.1.0 (clang-802.0.35)" ## string offset=0
.asciz "basic.c" ## string offset=42
.asciz "/Users/sgravani/Development/tests" ## string offset=50
.asciz "i" ## string offset=84
.asciz "int" ## string offset=86
.asciz "j" ## string offset=90
.section __DWARF,__debug_info,regular,debug
Lsection_info:
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0:

174
llvm/test/tools/llvm-dwarfdump/X86/no_apple_names_verify_buckets.s
View File

@ -1,174 +0,0 @@
# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
# RUN: | not llvm-dwarfdump -verify - \
# RUN: | FileCheck %s
# CHECK-NOT: Verifying .apple_names...
# This test is meant to verify that the -verify option
# in llvm-dwarfdump doesn't produce any .apple_names related
# output when there's no such section int he object.
# The test was manually modified to exclude the
# .apple_names section from the apple_names_verify_buckets.s
# test file in the same directory.
.section __TEXT,__text,regular,pure_instructions
.file 1 "basic.c"
.comm _i,4,2 ## @i
.section __DWARF,__debug_str,regular,debug
Linfo_string:
.asciz "basic.c" ## string offset=42
.asciz "i" ## string offset=84
.asciz "int" ## string offset=86
.section __DWARF,__debug_loc,regular,debug
Lsection_debug_loc:
.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 0 ## EOM(1)
.byte 0 ## EOM(2)
.byte 2 ## Abbreviation Code
.byte 52 ## DW_TAG_variable
.byte 0 ## DW_CHILDREN_no
.byte 3 ## DW_AT_name
.byte 14 ## DW_FORM_strp
.byte 73 ## DW_AT_type
.byte 19 ## DW_FORM_ref4
.byte 63 ## DW_AT_external
.byte 25 ## DW_FORM_flag_present
.byte 58 ## DW_AT_decl_file
.byte 11 ## DW_FORM_data1
.byte 59 ## DW_AT_decl_line
.byte 11 ## DW_FORM_data1
.byte 2 ## DW_AT_location
.byte 24 ## DW_FORM_exprloc
.byte 0 ## EOM(1)
.byte 0 ## EOM(2)
.byte 3 ## 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 0 ## EOM(3)
.section __DWARF,__debug_info,regular,debug
Lsection_info:
Lcu_begin0:
.long 55 ## Length of Unit
.short 4 ## DWARF version number
Lset0 = Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
.long Lset0
.byte 8 ## Address Size (in bytes)
.byte 1 ## Abbrev [1] 0xb:0x30 DW_TAG_compile_unit
.long 0 ## DW_AT_producer
.short 12 ## DW_AT_language
.long 42 ## DW_AT_name
Lset1 = Lline_table_start0-Lsection_line ## DW_AT_stmt_list
.long Lset1
.long 50 ## DW_AT_comp_dir
.byte 2 ## Abbrev [2] 0x1e:0x15 DW_TAG_variable
.long 84 ## DW_AT_name
.long 51 ## DW_AT_type
## DW_AT_external
.byte 1 ## DW_AT_decl_file
.byte 1 ## DW_AT_decl_line
.byte 9 ## DW_AT_location
.byte 3
.quad _i
.byte 3 ## Abbrev [3] 0x33:0x7 DW_TAG_base_type
.long 86 ## 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:
Lcu_macro_begin0:
.byte 0 ## End Of Macro List Mark
.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 1 ## Header Bucket Count
.long 1 ## 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 193495088 ## Hash in Bucket 0
.long Ltypes0-Ltypes_begin ## Offset in Bucket 0
Ltypes0:
.long 86 ## int
.long 1 ## Num DIEs
.long 51
.short 36
.byte 0
.long 0
.section __DWARF,__apple_exttypes,regular,debug
Lexttypes_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 7 ## DW_ATOM_ext_types
.short 6 ## DW_FORM_data4
.long -1 ## Bucket 0
.subsections_via_symbols
.section __DWARF,__debug_line,regular,debug
Lsection_line:
Lline_table_start0: