[llvm] r221836 - [dwarfdump] Add support for dumping accelerator tables.
David Blaikie
dblaikie at gmail.com
Wed Nov 12 16:22:09 PST 2014
I'll leave it up to someone with more Objective-C knowledge to some of this
review (Eric - since he implemented the accelerator tables in the first
place)
On Wed, Nov 12, 2014 at 3:48 PM, Frederic Riss <friss at apple.com> wrote:
> Author: friss
> Date: Wed Nov 12 17:48:10 2014
> New Revision: 221836
>
> URL: http://llvm.org/viewvc/llvm-project?rev=221836&view=rev
> Log:
> [dwarfdump] Add support for dumping accelerator tables.
>
> The class used for the dump only allows to dump for the moment, but
> it can (and will) be easily extended to support search also.
>
> Added:
> llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.cpp
> llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.h
> llvm/trunk/test/DebugInfo/dwarfdump-accel.test
> Modified:
> llvm/trunk/include/llvm/DebugInfo/DIContext.h
> llvm/trunk/lib/DebugInfo/CMakeLists.txt
> llvm/trunk/lib/DebugInfo/DWARFContext.cpp
> llvm/trunk/lib/DebugInfo/DWARFContext.h
> llvm/trunk/test/DebugInfo/Inputs/gmlt.ll
> llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
>
> Modified: llvm/trunk/include/llvm/DebugInfo/DIContext.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/DIContext.h?rev=221836&r1=221835&r2=221836&view=diff
>
> ==============================================================================
> --- llvm/trunk/include/llvm/DebugInfo/DIContext.h (original)
> +++ llvm/trunk/include/llvm/DebugInfo/DIContext.h Wed Nov 12 17:48:10 2014
> @@ -107,7 +107,11 @@ enum DIDumpType {
> DIDT_GnuPubtypes,
> DIDT_Str,
> DIDT_StrDwo,
> - DIDT_StrOffsetsDwo
> + DIDT_StrOffsetsDwo,
> + DIDT_AppleNames,
> + DIDT_AppleTypes,
> + DIDT_AppleNamespaces,
> + DIDT_AppleObjC
> };
>
> // In place of applying the relocations to the data we've read from disk
> we use
>
> Modified: llvm/trunk/lib/DebugInfo/CMakeLists.txt
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/CMakeLists.txt?rev=221836&r1=221835&r2=221836&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/CMakeLists.txt (original)
> +++ llvm/trunk/lib/DebugInfo/CMakeLists.txt Wed Nov 12 17:48:10 2014
> @@ -1,6 +1,7 @@
> add_llvm_library(LLVMDebugInfo
> DIContext.cpp
> DWARFAbbreviationDeclaration.cpp
> + DWARFAcceleratorTable.cpp
> DWARFCompileUnit.cpp
> DWARFContext.cpp
> DWARFDebugAbbrev.cpp
>
> Added: llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.cpp?rev=221836&view=auto
>
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.cpp (added)
> +++ llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.cpp Wed Nov 12 17:48:10
> 2014
> @@ -0,0 +1,110 @@
> +#include "DWARFAcceleratorTable.h"
> +
> +#include "llvm/Support/Dwarf.h"
> +#include "llvm/Support/Format.h"
> +#include "llvm/Support/raw_ostream.h"
> +
> +namespace llvm {
> +
> +bool DWARFAcceleratorTable::extract() {
> + uint32_t Offset = 0;
> +
> + // Check that we can at least read the header.
> + if (!AccelSection.isValidOffset(offsetof(Header, HeaderDataLength)+4))
> + return false;
> +
> + Hdr.Magic = AccelSection.getU32(&Offset);
> + Hdr.Version = AccelSection.getU16(&Offset);
> + Hdr.HashFunction = AccelSection.getU16(&Offset);
> + Hdr.NumBuckets = AccelSection.getU32(&Offset);
> + Hdr.NumHashes = AccelSection.getU32(&Offset);
> + Hdr.HeaderDataLength = AccelSection.getU32(&Offset);
> +
> + // Check that we can read all the hashes and offsets from the
> + // section (see SourceLevelDebugging.rst for the structure of the
> index).
> + if (!AccelSection.isValidOffset(sizeof(Hdr) + Hdr.HeaderDataLength +
> + Hdr.NumBuckets*4 + Hdr.NumHashes*8))
> + return false;
> +
> + HdrData.DIEOffsetBase = AccelSection.getU32(&Offset);
> + uint32_t NumAtoms = AccelSection.getU32(&Offset);
> +
> + for (unsigned i = 0; i < NumAtoms; ++i) {
> + auto Atom = std::make_pair(AccelSection.getU16(&Offset),
> +
> DWARFFormValue(AccelSection.getU16(&Offset)));
>
This might not be portable ^ due to unspecified order of evaluation of
function arguments, this might read the fields in the wrong order
(dwarfdump built with GCC versus dwarfdump built with Clang would behave
differently)
> + HdrData.Atoms.push_back(Atom);
>
If not for the point above, I'd probably suggest rolling the make_pair into
the push_back, but nevermind.
Is it worth doing HdrData.reserve(NumAtoms) before this loop?
> + }
> +
> + return true;
> +}
> +
> +void DWARFAcceleratorTable::dump(raw_ostream &OS) {
> + // Dump the header.
> + OS << "Magic = " << format("0x%08x", Hdr.Magic) << '\n';
> + OS << "Version = " << format("0x%04x", Hdr.Version) << '\n';
> + OS << "Hash function = " << format("0x%08x", Hdr.HashFunction) << '\n';
> + OS << "Bucket count = " << Hdr.NumBuckets << '\n';
> + OS << "Hashes count = " << Hdr.NumHashes << '\n';
> + OS << "HeaderData length = " << Hdr.HeaderDataLength << '\n';
> + OS << "DIE offset base = " << HdrData.DIEOffsetBase << '\n';
> + OS << "Number of atoms = " << HdrData.Atoms.size() << '\n';
>
Looks like dwarfdump is inconsistent in this regard, but you can just do it:
OS << ...
<< ...
<< ...;
rather than separate OS/; on each line.
> +
> + unsigned i = 0;
> + for (const auto &Atom: HdrData.Atoms) {
> + OS << format("Atom[%d] ", i++);
> + OS << " Type: " << dwarf::AtomTypeString(Atom.first);
> + OS << " Form: " << dwarf::FormEncodingString(Atom.second.getForm());
> + OS << "\n";
>
Which would make code like this ^ just a single statement and you could
omit the {} if you want (some people prefer to only omit the braces on
single /line/ blocks rather than single statement blocks - up to you)
> + }
> +
> + // Now go through the actual tables and dump them.
> + uint32_t Offset = sizeof(Hdr) + Hdr.HeaderDataLength;
> + unsigned HashesBase = Offset + Hdr.NumBuckets * 4;
> + unsigned OffsetsBase = HashesBase + Hdr.NumHashes * 4;
> +
> + for (unsigned Bucket = 0; Bucket < Hdr.NumBuckets; ++Bucket) {
> + unsigned Index;
> + Index = AccelSection.getU32(&Offset);
>
Make this into a single line/initialization? ^
> +
> + OS << format("Bucket[%d]\n", Bucket);
> + if (Index == UINT32_MAX) {
> + OS << " EMPTY\n";
> + continue;
> + }
> +
> + for (unsigned HashIdx = Index; HashIdx < Hdr.NumHashes; ++HashIdx) {
> + unsigned HashOffset = HashesBase + HashIdx*4;
> + unsigned OffsetsOffset = OffsetsBase + HashIdx*4;
> + uint32_t Hash = AccelSection.getU32(&HashOffset);
> +
> + if (Hash % Hdr.NumBuckets != Bucket)
> + break;
> +
> + unsigned DataOffset = AccelSection.getU32(&OffsetsOffset);
> + OS << format(" Hash = 0x%08x Offset = 0x%08x\n", Hash, DataOffset);
> + if (!AccelSection.isValidOffset(DataOffset)) {
> + OS << " Invalid section offset\n";
> + continue;
> + }
> + while (unsigned StringOffset = AccelSection.getU32(&DataOffset)) {
> + OS << format(" Name: %08x \"%s\"\n", StringOffset,
> + StringSection.getCStr(&StringOffset));
> + unsigned NumData = AccelSection.getU32(&DataOffset);
> + for (unsigned Data = 0; Data < NumData; ++Data) {
> + OS << format(" Data[%d] => ", Data);
> + unsigned i = 0;
> + for (auto &Atom : HdrData.Atoms) {
> + OS << format("{Atom[%d]: ", i++);
> + if (Atom.second.extractValue(AccelSection, &DataOffset,
> nullptr))
> + Atom.second.dump(OS, nullptr);
> + else
> + OS << "Error extracting the value";
> + OS << "} ";
> + }
> + OS << '\n';
> + }
> + }
> + }
> + }
> +}
> +}
>
> Added: llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.h?rev=221836&view=auto
>
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.h (added)
> +++ llvm/trunk/lib/DebugInfo/DWARFAcceleratorTable.h Wed Nov 12 17:48:10
> 2014
> @@ -0,0 +1,38 @@
> +
> +#include "llvm/ADT/SmallVector.h"
> +#include "llvm/DebugInfo/DWARFFormValue.h"
> +
> +#include <cstdint>
> +
> +namespace llvm {
> +
> +class DWARFAcceleratorTable {
> +
> + struct Header {
> + uint32_t Magic;
> + uint16_t Version;
> + uint16_t HashFunction;
> + uint32_t NumBuckets;
> + uint32_t NumHashes;
> + uint32_t HeaderDataLength;
> + };
> +
> + struct HeaderData {
> + typedef uint16_t AtomType;
> + uint32_t DIEOffsetBase;
> + SmallVector<std::pair<AtomType, DWARFFormValue>, 1> Atoms;
> + };
> +
> + struct Header Hdr;
> + struct HeaderData HdrData;
> + DataExtractor AccelSection;
> + DataExtractor StringSection;
> +public:
> + DWARFAcceleratorTable(DataExtractor AccelSection, DataExtractor
> StringSection)
> + : AccelSection(AccelSection), StringSection(StringSection) {}
> +
> + bool extract();
> + void dump(raw_ostream &OS);
> +};
> +
> +}
>
> Modified: llvm/trunk/lib/DebugInfo/DWARFContext.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARFContext.cpp?rev=221836&r1=221835&r2=221836&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/DWARFContext.cpp (original)
> +++ llvm/trunk/lib/DebugInfo/DWARFContext.cpp Wed Nov 12 17:48:10 2014
> @@ -9,6 +9,7 @@
>
> #include "DWARFContext.h"
> #include "DWARFDebugArangeSet.h"
> +#include "DWARFAcceleratorTable.h"
>
> #include "llvm/ADT/SmallString.h"
> #include "llvm/ADT/StringSwitch.h"
> @@ -59,6 +60,17 @@ static void dumpPubSection(raw_ostream &
> }
> }
>
> +static void dumpAccelSection(raw_ostream &OS, StringRef Name, StringRef
> Data,
> + StringRef StringSection, bool LittleEndian) {
> + DataExtractor AccelSection(Data, LittleEndian, 0);
> + DataExtractor StrData(StringSection, LittleEndian, 0);
> + OS << "\n." << Name << " contents:\n";
> + DWARFAcceleratorTable Accel(AccelSection, StrData);
> + if (!Accel.extract())
> + return;
> + Accel.dump(OS);
> +}
> +
> void DWARFContext::dump(raw_ostream &OS, DIDumpType DumpType) {
> if (DumpType == DIDT_All || DumpType == DIDT_Abbrev) {
> OS << ".debug_abbrev contents:\n";
> @@ -218,6 +230,22 @@ void DWARFContext::dump(raw_ostream &OS,
> OS << format("%8.8x\n", strOffsetExt.getU32(&offset));
> }
> }
> +
> + if (DumpType == DIDT_All || DumpType == DIDT_AppleNames)
> + dumpAccelSection(OS, "apple_names", getAppleNamesSection(),
> + getStringSection(), isLittleEndian());
> +
> + if (DumpType == DIDT_All || DumpType == DIDT_AppleTypes)
> + dumpAccelSection(OS, "apple_types", getAppleTypesSection(),
> + getStringSection(), isLittleEndian());
> +
> + if (DumpType == DIDT_All || DumpType == DIDT_AppleNamespaces)
> + dumpAccelSection(OS, "apple_namespaces", getAppleNamespacesSection(),
> + getStringSection(), isLittleEndian());
> +
> + if (DumpType == DIDT_All || DumpType == DIDT_AppleObjC)
> + dumpAccelSection(OS, "apple_objc", getAppleObjCSection(),
> + getStringSection(), isLittleEndian());
> }
>
> const DWARFDebugAbbrev *DWARFContext::getDebugAbbrev() {
> @@ -565,6 +593,11 @@ DWARFContextInMemory::DWARFContextInMemo
> .Case("debug_str.dwo", &StringDWOSection)
> .Case("debug_str_offsets.dwo", &StringOffsetDWOSection)
> .Case("debug_addr", &AddrSection)
> + .Case("apple_names", &AppleNamesSection)
> + .Case("apple_types", &AppleTypesSection)
> + .Case("apple_namespaces", &AppleNamespacesSection)
> + .Case("apple_namespac", &AppleNamespacesSection)
> + .Case("apple_objc", &AppleObjCSection)
> // Any more debug info sections go here.
> .Default(nullptr);
> if (SectionData) {
>
> Modified: llvm/trunk/lib/DebugInfo/DWARFContext.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARFContext.h?rev=221836&r1=221835&r2=221836&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/DWARFContext.h (original)
> +++ llvm/trunk/lib/DebugInfo/DWARFContext.h Wed Nov 12 17:48:10 2014
> @@ -192,6 +192,10 @@ public:
> virtual StringRef getStringOffsetDWOSection() = 0;
> virtual StringRef getRangeDWOSection() = 0;
> virtual StringRef getAddrSection() = 0;
> + virtual StringRef getAppleNamesSection() = 0;
> + virtual StringRef getAppleTypesSection() = 0;
> + virtual StringRef getAppleNamespacesSection() = 0;
> + virtual StringRef getAppleObjCSection() = 0;
>
> static bool isSupportedVersion(unsigned version) {
> return version == 2 || version == 3 || version == 4;
> @@ -236,6 +240,10 @@ class DWARFContextInMemory : public DWAR
> StringRef StringOffsetDWOSection;
> StringRef RangeDWOSection;
> StringRef AddrSection;
> + StringRef AppleNamesSection;
> + StringRef AppleTypesSection;
> + StringRef AppleNamespacesSection;
> + StringRef AppleObjCSection;
>
> SmallVector<SmallString<32>, 4> UncompressedSections;
>
> @@ -256,6 +264,10 @@ public:
> StringRef getPubTypesSection() override { return PubTypesSection; }
> StringRef getGnuPubNamesSection() override { return GnuPubNamesSection;
> }
> StringRef getGnuPubTypesSection() override { return GnuPubTypesSection;
> }
> + StringRef getAppleNamesSection() override { return AppleNamesSection; }
> + StringRef getAppleTypesSection() override { return AppleTypesSection; }
> + StringRef getAppleNamespacesSection() override { return
> AppleNamespacesSection; }
> + StringRef getAppleObjCSection() override { return AppleObjCSection; }
>
> // Sections for DWARF5 split dwarf proposal.
> const DWARFSection &getInfoDWOSection() override { return
> InfoDWOSection; }
>
> Modified: llvm/trunk/test/DebugInfo/Inputs/gmlt.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/Inputs/gmlt.ll?rev=221836&r1=221835&r2=221836&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/Inputs/gmlt.ll (original)
> +++ llvm/trunk/test/DebugInfo/Inputs/gmlt.ll Wed Nov 12 17:48:10 2014
> @@ -95,6 +95,8 @@
> ; CHECK: .debug_pubtypes contents:
> ; CHECK-NOT: Offset
>
> +; CHECK: .apple{{.*}} contents:
> +
> ; Function Attrs: nounwind uwtable
> define void @_Z2f1v() #0 {
> entry:
>
> Added: llvm/trunk/test/DebugInfo/dwarfdump-accel.test
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/dwarfdump-accel.test?rev=221836&view=auto
>
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/dwarfdump-accel.test (added)
> +++ llvm/trunk/test/DebugInfo/dwarfdump-accel.test Wed Nov 12 17:48:10 2014
> @@ -0,0 +1,154 @@
> +RUN: llvm-dwarfdump %p/Inputs/dwarfdump-objc.x86_64.o | FileCheck %s
>
Does the example need to be this long? Could it involve fewer elements?
What particular codepaths is it testing that require this length?
> +
> +CHECK: .apple_names contents:
> +CHECK: Magic = 0x48415348
> +CHECK: Version = 0x0001
> +CHECK: Hash function = 0x00000000
> +CHECK: Bucket count = 11
> +CHECK: Hashes count = 22
> +CHECK: HeaderData length = 12
> +CHECK: DIE offset base = 0
> +CHECK: Number of atoms = 1
> +CHECK: Atom[0] Type: DW_ATOM_die_offset Form: DW_FORM_data4
> +CHECK: Bucket[0]
> +CHECK: Hash = 0x248050fe Offset = 0x000000fc
> +CHECK: Name: 00000165 "-[TestInterface Retain]"
> +CHECK: Data[0] => {Atom[0]: 0x0000024f}
> +CHECK: Bucket[1]
> +CHECK: Hash = 0x926d42cc Offset = 0x0000010c
> +CHECK: Name: 00000057 "ReadWrite"
> +CHECK: Data[0] => {Atom[0]: 0x000001cb}
> +CHECK: Bucket[2]
> +CHECK: EMPTY
> +CHECK: Bucket[3]
> +CHECK: Hash = 0x99254268 Offset = 0x0000011c
> +CHECK: Name: 0000013f "-[TestInterface setReadWrite:]"
> +CHECK: Data[0] => {Atom[0]: 0x00000209}
> +CHECK: Hash = 0x946f52b9 Offset = 0x0000012c
> +CHECK: Name: 000000c6 "-[TestInterface ReadOnly]"
> +CHECK: Data[0] => {Atom[0]: 0x00000109}
> +CHECK: Bucket[4]
> +CHECK: EMPTY
> +CHECK: Bucket[5]
> +CHECK: EMPTY
> +CHECK: Bucket[6]
> +CHECK: Hash = 0x6e8e91a3 Offset = 0x0000013c
> +CHECK: Name: 000001e0 "-[TestInterface NonAtomic]"
> +CHECK: Data[0] => {Atom[0]: 0x00000357}
> +CHECK: Hash = 0x7d1a5012 Offset = 0x0000014c
> +CHECK: Name: 0000014d "setReadWrite:"
> +CHECK: Data[0] => {Atom[0]: 0x00000209}
> +CHECK: Hash = 0xb65f49d3 Offset = 0x0000015c
> +CHECK: Name: 0000020d "setNonAtomic:"
> +CHECK: Data[0] => {Atom[0]: 0x00000395}
> +CHECK: Hash = 0x354997e2 Offset = 0x0000016c
> +CHECK: Name: 00000120 "-[TestInterface ReadWrite]"
> +CHECK: Data[0] => {Atom[0]: 0x000001cb}
> +CHECK: Bucket[7]
> +CHECK: Hash = 0xce8af9c8 Offset = 0x0000017c
> +CHECK: Name: 0000005e "Retain"
> +CHECK: Data[0] => {Atom[0]: 0x0000024f}
> +CHECK: Hash = 0xa7e0338a Offset = 0x0000018c
> +CHECK: Name: 0000004d "Assign"
> +CHECK: Data[0] => {Atom[0]: 0x00000147}
> +CHECK: Hash = 0xa9812410 Offset = 0x0000019c
> +CHECK: Name: 00000105 "setAssign:"
> +CHECK: Data[0] => {Atom[0]: 0x00000185}
> +CHECK: Hash = 0x218d07f6 Offset = 0x000001ac
> +CHECK: Name: 000001a2 "-[TestInterface Copy]"
> +CHECK: Data[0] => {Atom[0]: 0x000002d3}
> +CHECK: Hash = 0x0456817c Offset = 0x000001bc
> +CHECK: Name: 000001bc "-[TestInterface setCopy:]"
> +CHECK: Data[0] => {Atom[0]: 0x00000311}
> +CHECK: Hash = 0x7c83b400 Offset = 0x000001cc
> +CHECK: Name: 0000006c "Copy"
> +CHECK: Data[0] => {Atom[0]: 0x000002d3}
> +CHECK: Bucket[8]
> +CHECK: Hash = 0x0f918046 Offset = 0x000001dc
> +CHECK: Name: 000001c5 "setCopy:"
> +CHECK: Data[0] => {Atom[0]: 0x00000311}
> +CHECK: Hash = 0xfb097449 Offset = 0x000001ec
> +CHECK: Name: 000001ff "-[TestInterface setNonAtomic:]"
> +CHECK: Data[0] => {Atom[0]: 0x00000395}
> +CHECK: Hash = 0x71069de3 Offset = 0x000001fc
> +CHECK: Name: 00000042 "ReadOnly"
> +CHECK: Data[0] => {Atom[0]: 0x00000109}
> +CHECK: Bucket[9]
> +CHECK: Hash = 0xd55908c6 Offset = 0x0000020c
> +CHECK: Name: 000000fa "-[TestInterface setAssign:]"
> +CHECK: Data[0] => {Atom[0]: 0x00000185}
> +CHECK: Hash = 0xa584b20e Offset = 0x0000021c
> +CHECK: Name: 0000018c "setRetain:"
> +CHECK: Data[0] => {Atom[0]: 0x0000028d}
> +CHECK: Hash = 0x9429886d Offset = 0x0000022c
> +CHECK: Name: 00000076 "NonAtomic"
> +CHECK: Data[0] => {Atom[0]: 0x00000357}
> +CHECK: Hash = 0x287cc300 Offset = 0x0000023c
> +CHECK: Name: 000000de "-[TestInterface Assign]"
> +CHECK: Data[0] => {Atom[0]: 0x00000147}
> +CHECK: Hash = 0x51ce5684 Offset = 0x0000024c
> +CHECK: Name: 00000181 "-[TestInterface setRetain:]"
> +CHECK: Data[0] => {Atom[0]: 0x0000028d}
> +CHECK: Bucket[10]
> +CHECK: EMPTY
> +
> +
> +CHECK: .apple_types contents:
> +CHECK: Magic = 0x48415348
> +CHECK: Version = 0x0001
> +CHECK: Hash function = 0x00000000
> +CHECK: Bucket count = 4
> +CHECK: Hashes count = 4
> +CHECK: HeaderData length = 20
> +CHECK: DIE offset base = 0
> +CHECK: Number of atoms = 3
> +CHECK: Atom[0] Type: DW_ATOM_die_offset Form: DW_FORM_data4
> +CHECK: Atom[1] Type: DW_ATOM_die_tag Form: DW_FORM_data2
> +CHECK: Atom[2] Type: DW_ATOM_type_flags Form: DW_FORM_data1
> +CHECK: Bucket[0]
> +CHECK: Hash = 0x0b888030 Offset = 0x00000058
> +CHECK: Name: 00000046 "int"
> +CHECK: Data[0] => {Atom[0]: 0x000000f4} {Atom[1]: 0x0024} {Atom[2]:
> 0x00}
> +CHECK: Bucket[1]
> +CHECK: Hash = 0x0b881d29 Offset = 0x0000006b
> +CHECK: Name: 0000021b "SEL"
> +CHECK: Data[0] => {Atom[0]: 0x000003e0} {Atom[1]: 0x0016} {Atom[2]:
> 0x00}
> +CHECK: Hash = 0x2c549f3d Offset = 0x0000007e
> +CHECK: Name: 00000067 "NSObject"
> +CHECK: Data[0] => {Atom[0]: 0x00000100} {Atom[1]: 0x0013} {Atom[2]:
> 0x00}
> +CHECK: Bucket[2]
> +CHECK: Hash = 0x16a83cb6 Offset = 0x00000091
> +CHECK: Name: 00000039 "TestInterface"
> +CHECK: Data[0] => {Atom[0]: 0x0000002f} {Atom[1]: 0x0013} {Atom[2]:
> 0x00}
> +CHECK: Bucket[3]
> +CHECK: EMPTY
> +
> +
> +CHECK: .apple_namespaces contents:
> +CHECK-NOT: Magic
> +
> +
> +CHECK: .apple_objc contents:
> +CHECK: Magic = 0x48415348
> +CHECK: Version = 0x0001
> +CHECK: Hash function = 0x00000000
> +CHECK: Bucket count = 1
> +CHECK: Hashes count = 1
> +CHECK: HeaderData length = 12
> +CHECK: DIE offset base = 0
> +CHECK: Number of atoms = 1
> +CHECK: Atom[0] Type: DW_ATOM_die_offset Form: DW_FORM_data4
> +CHECK: Bucket[0]
> +CHECK: Hash = 0x16a83cb6 Offset = 0x0000002c
> +CHECK: Name: 00000039 "TestInterface"
> +CHECK: Data[0] => {Atom[0]: 0x00000109}
> +CHECK: Data[1] => {Atom[0]: 0x00000147}
> +CHECK: Data[2] => {Atom[0]: 0x00000185}
> +CHECK: Data[3] => {Atom[0]: 0x000001cb}
> +CHECK: Data[4] => {Atom[0]: 0x00000209}
> +CHECK: Data[5] => {Atom[0]: 0x0000024f}
> +CHECK: Data[6] => {Atom[0]: 0x0000028d}
> +CHECK: Data[7] => {Atom[0]: 0x000002d3}
> +CHECK: Data[8] => {Atom[0]: 0x00000311}
> +CHECK: Data[9] => {Atom[0]: 0x00000357}
> +CHECK: Data[10] => {Atom[0]: 0x00000395}
> \ No newline at end of file
>
> Modified: llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp?rev=221836&r1=221835&r2=221836&view=diff
>
> ==============================================================================
> --- llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp (original)
> +++ llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp Wed Nov 12 17:48:10
> 2014
> @@ -45,6 +45,10 @@ DumpType("debug-dump", cl::init(DIDT_All
> clEnumValN(DIDT_All, "all", "Dump all debug sections"),
> clEnumValN(DIDT_Abbrev, "abbrev", ".debug_abbrev"),
> clEnumValN(DIDT_AbbrevDwo, "abbrev.dwo", ".debug_abbrev.dwo"),
> + clEnumValN(DIDT_AppleNames, "apple_names", ".apple_names"),
> + clEnumValN(DIDT_AppleTypes, "apple_types", ".apple_types"),
> + clEnumValN(DIDT_AppleNamespaces, "apple_namespaces",
> ".apple_namespaces"),
> + clEnumValN(DIDT_AppleObjC, "apple_objc", ".apple_objc"),
> clEnumValN(DIDT_Aranges, "aranges", ".debug_aranges"),
> clEnumValN(DIDT_Info, "info", ".debug_info"),
> clEnumValN(DIDT_InfoDwo, "info.dwo", ".debug_info.dwo"),
>
>
> _______________________________________________
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> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
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