[PDB] Copy inlinee lines records into the PDB

Summary:
- Fixes inline call frame line table display in windbg.
- Improve llvm-pdbutil to dump extra file ids.
- Warn on unknown subsections so we don't have this kind of bug in the
  future.

Reviewers: inglorion, akhuang, aganea

Subscribers: eraman, zturner, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62701

llvm-svn: 362429
This commit is contained in:
Reid Kleckner 2019-06-03 18:15:38 +00:00
parent 86463141e7
commit 221e604d6f
6 changed files with 809 additions and 17 deletions

View File

@ -211,6 +211,10 @@ class DebugSHandler {
/// PDB.
DebugChecksumsSubsectionRef Checksums;
/// The DEBUG_S_INLINEELINES subsection. There can be only one of these per
/// object file.
DebugInlineeLinesSubsectionRef InlineeLines;
/// The DEBUG_S_FRAMEDATA subsection(s). There can be more than one of
/// these and they need not appear in any specific order. However, they
/// contain string table references which need to be re-written, so we
@ -231,6 +235,10 @@ public:
: Linker(Linker), File(File), IndexMap(IndexMap) {}
void handleDebugS(lld::coff::SectionChunk &DebugS);
std::shared_ptr<DebugInlineeLinesSubsection>
mergeInlineeLines(DebugChecksumsSubsection *NewChecksums);
void finish();
};
}
@ -1004,6 +1012,11 @@ void DebugSHandler::handleDebugS(lld::coff::SectionChunk &DebugS) {
// modification because the file checksum offsets will stay the same.
File.ModuleDBI->addDebugSubsection(SS);
break;
case DebugSubsectionKind::InlineeLines:
assert(!InlineeLines.valid() &&
"Encountered multiple inlinee lines subsections!");
ExitOnErr(InlineeLines.initialize(SS.getRecordData()));
break;
case DebugSubsectionKind::FrameData: {
// We need to re-write string table indices here, so save off all
// frame data subsections until we've processed the entire list of
@ -1018,13 +1031,77 @@ void DebugSHandler::handleDebugS(lld::coff::SectionChunk &DebugS) {
SS.getRecordData());
break;
}
case DebugSubsectionKind::CrossScopeImports:
case DebugSubsectionKind::CrossScopeExports:
// These appear to relate to cross-module optimization, so we might use
// these for ThinLTO.
break;
case DebugSubsectionKind::ILLines:
case DebugSubsectionKind::FuncMDTokenMap:
case DebugSubsectionKind::TypeMDTokenMap:
case DebugSubsectionKind::MergedAssemblyInput:
// These appear to relate to .Net assembly info.
break;
case DebugSubsectionKind::CoffSymbolRVA:
// Unclear what this is for.
break;
default:
// FIXME: Process the rest of the subsections.
warn("ignoring unknown debug$S subsection kind 0x" +
utohexstr(uint32_t(SS.kind())));
break;
}
}
}
static Expected<StringRef>
getFileName(const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums, uint32_t FileID) {
auto Iter = Checksums.getArray().at(FileID);
if (Iter == Checksums.getArray().end())
return make_error<CodeViewError>(cv_error_code::no_records);
uint32_t Offset = Iter->FileNameOffset;
return Strings.getString(Offset);
}
std::shared_ptr<DebugInlineeLinesSubsection>
DebugSHandler::mergeInlineeLines(DebugChecksumsSubsection *NewChecksums) {
auto NewInlineeLines = std::make_shared<DebugInlineeLinesSubsection>(
*NewChecksums, InlineeLines.hasExtraFiles());
for (const InlineeSourceLine &Line : InlineeLines) {
TypeIndex Inlinee = Line.Header->Inlinee;
uint32_t FileID = Line.Header->FileID;
uint32_t SourceLine = Line.Header->SourceLineNum;
ArrayRef<TypeIndex> TypeOrItemMap =
IndexMap.IsTypeServerMap ? IndexMap.IPIMap : IndexMap.TPIMap;
if (!remapTypeIndex(Inlinee, TypeOrItemMap)) {
log("ignoring inlinee line record in " + File.getName() +
" with bad inlinee index 0x" + utohexstr(Inlinee.getIndex()));
continue;
}
SmallString<128> Filename =
ExitOnErr(getFileName(CVStrTab, Checksums, FileID));
pdbMakeAbsolute(Filename);
NewInlineeLines->addInlineSite(Inlinee, Filename, SourceLine);
if (InlineeLines.hasExtraFiles()) {
for (uint32_t ExtraFileId : Line.ExtraFiles) {
Filename = ExitOnErr(getFileName(CVStrTab, Checksums, ExtraFileId));
pdbMakeAbsolute(Filename);
NewInlineeLines->addExtraFile(Filename);
}
}
}
return NewInlineeLines;
}
void DebugSHandler::finish() {
pdb::DbiStreamBuilder &DbiBuilder = Linker.Builder.getDbiBuilder();
@ -1063,13 +1140,17 @@ void DebugSHandler::finish() {
// subsections.
auto NewChecksums = make_unique<DebugChecksumsSubsection>(Linker.PDBStrTab);
for (FileChecksumEntry &FC : Checksums) {
SmallString<128> FileName =
SmallString<128> Filename =
ExitOnErr(CVStrTab.getString(FC.FileNameOffset));
pdbMakeAbsolute(FileName);
ExitOnErr(Linker.Builder.getDbiBuilder().addModuleSourceFile(
*File.ModuleDBI, FileName));
NewChecksums->addChecksum(FileName, FC.Kind, FC.Checksum);
pdbMakeAbsolute(Filename);
ExitOnErr(DbiBuilder.addModuleSourceFile(*File.ModuleDBI, Filename));
NewChecksums->addChecksum(Filename, FC.Kind, FC.Checksum);
}
// Rewrite inlinee item indices if present.
if (InlineeLines.valid())
File.ModuleDBI->addDebugSubsection(mergeInlineeLines(NewChecksums.get()));
File.ModuleDBI->addDebugSubsection(std::move(NewChecksums));
}
@ -1604,16 +1685,6 @@ void PDBLinker::commit(codeview::GUID *Guid) {
ExitOnErr(Builder.commit(Config->PDBPath, Guid));
}
static Expected<StringRef>
getFileName(const DebugStringTableSubsectionRef &Strings,
const DebugChecksumsSubsectionRef &Checksums, uint32_t FileID) {
auto Iter = Checksums.getArray().at(FileID);
if (Iter == Checksums.getArray().end())
return make_error<CodeViewError>(cv_error_code::no_records);
uint32_t Offset = Iter->FileNameOffset;
return Strings.getString(Offset);
}
static uint32_t getSecrelReloc() {
switch (Config->Machine) {
case AMD64:

View File

@ -0,0 +1,334 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj %s -o %t.obj -triple x86_64-windows-msvc
# RUN: lld-link -entry:main -nodefaultlib %t.obj -out:%t.exe -pdb:%t.pdb -debug
# RUN: llvm-pdbutil dump -il %t.pdb | FileCheck %s
# The assembly was hand written to model the following C code. As of this
# writing, clang does not emit extra files for inlinees, so it had to be hand
# written.
# // t1.h:
# ++x;
# #include "t2.h"
# ++x;
# // t2.h:
# ++x;
# __debugbreak();
# ++x;
# // t.c:
# volatile int x;
# static __forceinline void inlinee_1(void) {
# ++x;
# #include "t1.inc"
# ++x;
# }
# int main() {
# ++x;
# inlinee_1();
# ++x;
# return x;
# }
# CHECK: Inlinee Lines
# CHECK: Mod 0000 | `{{.*}}pdb-inlinees-extrafiles.s.tmp.obj`:
# CHECK-NEXT: Inlinee | Line | Source File
# CHECK-NEXT: 0x1000 | 7 | C:\src\llvm-project\build\t.c (MD5: A79D837C976E9F0463A474D74E2EE9E7)
# CHECK-NEXT: C:\src\llvm-project\build\t1.h (MD5: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)
# CHECK-NEXT: C:\src\llvm-project\build\t2.h (MD5: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)
.text
.def @feat.00;
.scl 3;
.type 0;
.endef
.globl @feat.00
.set @feat.00, 0
.intel_syntax noprefix
.file "t.c"
.def main;
.scl 2;
.type 32;
.endef
.section .text,"xr",one_only,main
.globl main # -- Begin function main
main: # @main
.Lfunc_begin0:
.cv_func_id 0
# %bb.0: # %entry
.cv_file 1 "C:\\src\\llvm-project\\build\\t.c" "A79D837C976E9F0463A474D74E2EE9E7" 1
.cv_file 2 "C:\\src\\llvm-project\\build\\t1.h" "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" 1
.cv_file 3 "C:\\src\\llvm-project\\build\\t2.h" "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" 1
.cv_loc 0 1 13 0 # t.c:13:0
inc dword ptr [rip + x]
.Ltmp0:
.cv_inline_site_id 1 within 0 inlined_at 1 14 0
.cv_loc 1 1 3 0 # t.c:3:0
inc dword ptr [rip + x]
.Ltmp1:
.cv_loc 1 2 1 0 # t1.h:1:0
inc dword ptr [rip + x]
.cv_loc 1 3 1 0 # t2.h:1:0
inc dword ptr [rip + x]
.cv_loc 1 3 2 0 # t2.h:2:0
int3
.cv_loc 1 3 3 0 # t2.h:3:0
inc dword ptr [rip + x]
.cv_loc 1 2 3 0 # t1.h:3:0
inc dword ptr [rip + x]
.Ltmp2:
.cv_loc 1 1 5 0 # t.c:5:0
inc dword ptr [rip + x]
.Ltmp3:
.cv_loc 0 1 15 0 # t.c:15:0
inc dword ptr [rip + x]
.cv_loc 0 1 16 0 # t.c:16:0
mov eax, dword ptr [rip + x]
ret
.Ltmp4:
.Lfunc_end0:
# -- End function
.comm x,4,2 # @x
.section .debug$S,"dr"
.p2align 2
.long 4 # Debug section magic
.long 241
.long .Ltmp6-.Ltmp5 # Subsection size
.Ltmp5:
.short .Ltmp8-.Ltmp7 # Record length
.Ltmp7:
.short 4412 # Record kind: S_COMPILE3
.long 0 # Flags and language
.short 208 # CPUType
.short 9 # Frontend version
.short 0
.short 0
.short 0
.short 9000 # Backend version
.short 0
.short 0
.short 0
.asciz "clang version 9.0.0 (git@github.com:llvm/llvm-project.git aa762a56caf3ef2b0b41c501e66d3ef32903a2d0)" # Null-terminated compiler version string
.p2align 2
.Ltmp8:
.Ltmp6:
.p2align 2
.long 246 # Inlinee lines subsection
.long .Ltmp10-.Ltmp9 # Subsection size
.Ltmp9:
.long 1 # Inlinee lines signature, extra files
# Inlined function inlinee_1 starts at t.c:7
.long 4098 # Type index of inlined function
.cv_filechecksumoffset 1 # Offset into filechecksum table
.long 7 # Starting line number
.long 2
.cv_filechecksumoffset 2 # Offset into filechecksum table
.cv_filechecksumoffset 3 # Offset into filechecksum table
.Ltmp10:
.p2align 2
.section .debug$S,"dr",associative,main
.p2align 2
.long 4 # Debug section magic
.long 241 # Symbol subsection for main
.long .Ltmp12-.Ltmp11 # Subsection size
.Ltmp11:
.short .Ltmp14-.Ltmp13 # Record length
.Ltmp13:
.short 4423 # Record kind: S_GPROC32_ID
.long 0 # PtrParent
.long 0 # PtrEnd
.long 0 # PtrNext
.long .Lfunc_end0-main # Code size
.long 0 # Offset after prologue
.long 0 # Offset before epilogue
.long 4101 # Function type index
.secrel32 main # Function section relative address
.secidx main # Function section index
.byte 0 # Flags
.asciz "main" # Function name
.p2align 2
.Ltmp14:
.short .Ltmp16-.Ltmp15 # Record length
.Ltmp15:
.short 4114 # Record kind: S_FRAMEPROC
.long 0 # FrameSize
.long 0 # Padding
.long 0 # Offset of padding
.long 0 # Bytes of callee saved registers
.long 0 # Exception handler offset
.short 0 # Exception handler section
.long 0 # Flags (defines frame register)
.p2align 2
.Ltmp16:
.short .Ltmp18-.Ltmp17 # Record length
.Ltmp17:
.short 4429 # Record kind: S_INLINESITE
.long 0 # PtrParent
.long 0 # PtrEnd
.long 4098 # Inlinee type index
.cv_inline_linetable 1 1 7 .Lfunc_begin0 .Lfunc_end0
.p2align 2
.Ltmp18:
.short 2 # Record length
.short 4430 # Record kind: S_INLINESITE_END
.short 2 # Record length
.short 4431 # Record kind: S_PROC_ID_END
.Ltmp12:
.p2align 2
.cv_linetable 0, main, .Lfunc_end0
.section .debug$S,"dr"
.long 241 # Symbol subsection for globals
.long .Ltmp22-.Ltmp21 # Subsection size
.Ltmp21:
.short .Ltmp24-.Ltmp23 # Record length
.Ltmp23:
.short 4365 # Record kind: S_GDATA32
.long 4102 # Type
.secrel32 x # DataOffset
.secidx x # Segment
.asciz "x" # Name
.p2align 2
.Ltmp24:
.Ltmp22:
.p2align 2
.cv_filechecksums # File index to string table offset subsection
.cv_stringtable # String table
.long 241
.long .Ltmp26-.Ltmp25 # Subsection size
.Ltmp25:
.short .Ltmp28-.Ltmp27 # Record length
.Ltmp27:
.short 4428 # Record kind: S_BUILDINFO
.long 4105 # LF_BUILDINFO index
.p2align 2
.Ltmp28:
.Ltmp26:
.p2align 2
.section .debug$T,"dr"
.p2align 2
.long 4 # Debug section magic
# ArgList (0x1000) {
# TypeLeafKind: LF_ARGLIST (0x1201)
# NumArgs: 0
# Arguments [
# ]
# }
.byte 0x06, 0x00, 0x01, 0x12
.byte 0x00, 0x00, 0x00, 0x00
# Procedure (0x1001) {
# TypeLeafKind: LF_PROCEDURE (0x1008)
# ReturnType: void (0x3)
# CallingConvention: NearC (0x0)
# FunctionOptions [ (0x0)
# ]
# NumParameters: 0
# ArgListType: () (0x1000)
# }
.byte 0x0e, 0x00, 0x08, 0x10
.byte 0x03, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x10, 0x00, 0x00
# FuncId (0x1002) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: void () (0x1001)
# Name: inlinee_1
# }
.byte 0x16, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x01, 0x10, 0x00, 0x00
.byte 0x69, 0x6e, 0x6c, 0x69
.byte 0x6e, 0x65, 0x65, 0x5f
.byte 0x31, 0x00, 0xf2, 0xf1
# FuncId (0x1003) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: void () (0x1001)
# Name: inlinee_2
# }
.byte 0x16, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x01, 0x10, 0x00, 0x00
.byte 0x69, 0x6e, 0x6c, 0x69
.byte 0x6e, 0x65, 0x65, 0x5f
.byte 0x32, 0x00, 0xf2, 0xf1
# Procedure (0x1004) {
# TypeLeafKind: LF_PROCEDURE (0x1008)
# ReturnType: int (0x74)
# CallingConvention: NearC (0x0)
# FunctionOptions [ (0x0)
# ]
# NumParameters: 0
# ArgListType: () (0x1000)
# }
.byte 0x0e, 0x00, 0x08, 0x10
.byte 0x74, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x10, 0x00, 0x00
# FuncId (0x1005) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: int () (0x1004)
# Name: main
# }
.byte 0x12, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x04, 0x10, 0x00, 0x00
.byte 0x6d, 0x61, 0x69, 0x6e
.byte 0x00, 0xf3, 0xf2, 0xf1
# Modifier (0x1006) {
# TypeLeafKind: LF_MODIFIER (0x1001)
# ModifiedType: int (0x74)
# Modifiers [ (0x2)
# Volatile (0x2)
# ]
# }
.byte 0x0a, 0x00, 0x01, 0x10
.byte 0x74, 0x00, 0x00, 0x00
.byte 0x02, 0x00, 0xf2, 0xf1
# StringId (0x1007) {
# TypeLeafKind: LF_STRING_ID (0x1605)
# Id: 0x0
# StringData: C:\src\llvm-project\build
# }
.byte 0x22, 0x00, 0x05, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x43, 0x3a, 0x5c, 0x73
.byte 0x72, 0x63, 0x5c, 0x6c
.byte 0x6c, 0x76, 0x6d, 0x2d
.byte 0x70, 0x72, 0x6f, 0x6a
.byte 0x65, 0x63, 0x74, 0x5c
.byte 0x62, 0x75, 0x69, 0x6c
.byte 0x64, 0x00, 0xf2, 0xf1
# StringId (0x1008) {
# TypeLeafKind: LF_STRING_ID (0x1605)
# Id: 0x0
# StringData: t.c
# }
.byte 0x0a, 0x00, 0x05, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x74, 0x2e, 0x63, 0x00
# BuildInfo (0x1009) {
# TypeLeafKind: LF_BUILDINFO (0x1603)
# NumArgs: 5
# Arguments [
# ArgType: C:\src\llvm-project\build (0x1007)
# ArgType: 0x0
# ArgType: t.c (0x1008)
# ArgType: 0x0
# ArgType: 0x0
# ]
# }
.byte 0x1a, 0x00, 0x03, 0x16
.byte 0x05, 0x00, 0x07, 0x10
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x08, 0x10
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0xf2, 0xf1
.addrsig
.addrsig_sym x

View File

@ -0,0 +1,332 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj %s -o %t.obj -triple x86_64-windows-msvc
# RUN: lld-link -entry:main -nodefaultlib %t.obj -out:%t.exe -pdb:%t.pdb -debug
# RUN: llvm-pdbutil dump -il %t.pdb | FileCheck %s
# Compiled from this C code, with modifications to test multiple file checksums:
# volatile int x;
# static __forceinline void inlinee_2(void) {
# ++x;
# __debugbreak();
# ++x;
# }
# static __forceinline void inlinee_1(void) {
# ++x;
# inlinee_2();
# ++x;
# }
# int main() {
# ++x;
# inlinee_1();
# ++x;
# return x;
# }
# CHECK: Inlinee Lines
# CHECK: Mod 0000 | `{{.*}}pdb-inlinees.s.tmp.obj`:
# CHECK-NEXT: Inlinee | Line | Source File
# CHECK-NEXT: 0x1000 | 7 | C:\src\llvm-project\build\t.c (MD5: A79D837C976E9F0463A474D74E2EE9E7)
# CHECK-NEXT: 0x1001 | 2 | C:\src\llvm-project\build\file2.h (MD5: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)
.text
.def @feat.00;
.scl 3;
.type 0;
.endef
.globl @feat.00
.set @feat.00, 0
.intel_syntax noprefix
.file "t.c"
.def main;
.scl 2;
.type 32;
.endef
.section .text,"xr",one_only,main
.globl main # -- Begin function main
main: # @main
.Lfunc_begin0:
.cv_func_id 0
# %bb.0: # %entry
.cv_file 1 "C:\\src\\llvm-project\\build\\t.c" "A79D837C976E9F0463A474D74E2EE9E7" 1
.cv_file 2 "C:\\src\\llvm-project\\build\\file2.h" "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF" 1
.cv_loc 0 1 13 0 # t.c:13:0
inc dword ptr [rip + x]
.Ltmp0:
.cv_inline_site_id 1 within 0 inlined_at 1 14 0
.cv_loc 1 1 8 0 # t.c:8:0
inc dword ptr [rip + x]
.Ltmp1:
.cv_inline_site_id 2 within 1 inlined_at 1 9 0
.cv_loc 2 2 3 0 # file2.h:3:0
inc dword ptr [rip + x]
.cv_loc 2 2 4 0 # file2.h:4:0
int3
.cv_loc 2 2 5 0 # file2.h:5:0
inc dword ptr [rip + x]
.Ltmp2:
.cv_loc 1 1 10 0 # t.c:10:0
inc dword ptr [rip + x]
.Ltmp3:
.cv_loc 0 1 15 0 # t.c:15:0
inc dword ptr [rip + x]
.cv_loc 0 1 16 0 # t.c:16:0
mov eax, dword ptr [rip + x]
ret
.Ltmp4:
.Lfunc_end0:
# -- End function
.comm x,4,2 # @x
.section .debug$S,"dr"
.p2align 2
.long 4 # Debug section magic
.long 241
.long .Ltmp6-.Ltmp5 # Subsection size
.Ltmp5:
.short .Ltmp8-.Ltmp7 # Record length
.Ltmp7:
.short 4412 # Record kind: S_COMPILE3
.long 0 # Flags and language
.short 208 # CPUType
.short 9 # Frontend version
.short 0
.short 0
.short 0
.short 9000 # Backend version
.short 0
.short 0
.short 0
.asciz "clang version 9.0.0 (git@github.com:llvm/llvm-project.git aa762a56caf3ef2b0b41c501e66d3ef32903a2d0)" # Null-terminated compiler version string
.p2align 2
.Ltmp8:
.Ltmp6:
.p2align 2
.long 246 # Inlinee lines subsection
.long .Ltmp10-.Ltmp9 # Subsection size
.Ltmp9:
.long 0 # Inlinee lines signature
# Inlined function inlinee_1 starts at t.c:7
.long 4098 # Type index of inlined function
.cv_filechecksumoffset 1 # Offset into filechecksum table
.long 7 # Starting line number
# Inlined function inlinee_2 starts at file2.h:2
.long 4099 # Type index of inlined function
.cv_filechecksumoffset 2 # Offset into filechecksum table
.long 2 # Starting line number
.Ltmp10:
.p2align 2
.section .debug$S,"dr",associative,main
.p2align 2
.long 4 # Debug section magic
.long 241 # Symbol subsection for main
.long .Ltmp12-.Ltmp11 # Subsection size
.Ltmp11:
.short .Ltmp14-.Ltmp13 # Record length
.Ltmp13:
.short 4423 # Record kind: S_GPROC32_ID
.long 0 # PtrParent
.long 0 # PtrEnd
.long 0 # PtrNext
.long .Lfunc_end0-main # Code size
.long 0 # Offset after prologue
.long 0 # Offset before epilogue
.long 4101 # Function type index
.secrel32 main # Function section relative address
.secidx main # Function section index
.byte 0 # Flags
.asciz "main" # Function name
.p2align 2
.Ltmp14:
.short .Ltmp16-.Ltmp15 # Record length
.Ltmp15:
.short 4114 # Record kind: S_FRAMEPROC
.long 0 # FrameSize
.long 0 # Padding
.long 0 # Offset of padding
.long 0 # Bytes of callee saved registers
.long 0 # Exception handler offset
.short 0 # Exception handler section
.long 0 # Flags (defines frame register)
.p2align 2
.Ltmp16:
.short .Ltmp18-.Ltmp17 # Record length
.Ltmp17:
.short 4429 # Record kind: S_INLINESITE
.long 0 # PtrParent
.long 0 # PtrEnd
.long 4098 # Inlinee type index
.cv_inline_linetable 1 1 7 .Lfunc_begin0 .Lfunc_end0
.p2align 2
.Ltmp18:
.short .Ltmp20-.Ltmp19 # Record length
.Ltmp19:
.short 4429 # Record kind: S_INLINESITE
.long 0 # PtrParent
.long 0 # PtrEnd
.long 4099 # Inlinee type index
.cv_inline_linetable 2 2 2 .Lfunc_begin0 .Lfunc_end0
.p2align 2
.Ltmp20:
.short 2 # Record length
.short 4430 # Record kind: S_INLINESITE_END
.short 2 # Record length
.short 4430 # Record kind: S_INLINESITE_END
.short 2 # Record length
.short 4431 # Record kind: S_PROC_ID_END
.Ltmp12:
.p2align 2
.cv_linetable 0, main, .Lfunc_end0
.section .debug$S,"dr"
.long 241 # Symbol subsection for globals
.long .Ltmp22-.Ltmp21 # Subsection size
.Ltmp21:
.short .Ltmp24-.Ltmp23 # Record length
.Ltmp23:
.short 4365 # Record kind: S_GDATA32
.long 4102 # Type
.secrel32 x # DataOffset
.secidx x # Segment
.asciz "x" # Name
.p2align 2
.Ltmp24:
.Ltmp22:
.p2align 2
.cv_filechecksums # File index to string table offset subsection
.cv_stringtable # String table
.long 241
.long .Ltmp26-.Ltmp25 # Subsection size
.Ltmp25:
.short .Ltmp28-.Ltmp27 # Record length
.Ltmp27:
.short 4428 # Record kind: S_BUILDINFO
.long 4105 # LF_BUILDINFO index
.p2align 2
.Ltmp28:
.Ltmp26:
.p2align 2
.section .debug$T,"dr"
.p2align 2
.long 4 # Debug section magic
# ArgList (0x1000) {
# TypeLeafKind: LF_ARGLIST (0x1201)
# NumArgs: 0
# Arguments [
# ]
# }
.byte 0x06, 0x00, 0x01, 0x12
.byte 0x00, 0x00, 0x00, 0x00
# Procedure (0x1001) {
# TypeLeafKind: LF_PROCEDURE (0x1008)
# ReturnType: void (0x3)
# CallingConvention: NearC (0x0)
# FunctionOptions [ (0x0)
# ]
# NumParameters: 0
# ArgListType: () (0x1000)
# }
.byte 0x0e, 0x00, 0x08, 0x10
.byte 0x03, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x10, 0x00, 0x00
# FuncId (0x1002) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: void () (0x1001)
# Name: inlinee_1
# }
.byte 0x16, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x01, 0x10, 0x00, 0x00
.byte 0x69, 0x6e, 0x6c, 0x69
.byte 0x6e, 0x65, 0x65, 0x5f
.byte 0x31, 0x00, 0xf2, 0xf1
# FuncId (0x1003) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: void () (0x1001)
# Name: inlinee_2
# }
.byte 0x16, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x01, 0x10, 0x00, 0x00
.byte 0x69, 0x6e, 0x6c, 0x69
.byte 0x6e, 0x65, 0x65, 0x5f
.byte 0x32, 0x00, 0xf2, 0xf1
# Procedure (0x1004) {
# TypeLeafKind: LF_PROCEDURE (0x1008)
# ReturnType: int (0x74)
# CallingConvention: NearC (0x0)
# FunctionOptions [ (0x0)
# ]
# NumParameters: 0
# ArgListType: () (0x1000)
# }
.byte 0x0e, 0x00, 0x08, 0x10
.byte 0x74, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x10, 0x00, 0x00
# FuncId (0x1005) {
# TypeLeafKind: LF_FUNC_ID (0x1601)
# ParentScope: 0x0
# FunctionType: int () (0x1004)
# Name: main
# }
.byte 0x12, 0x00, 0x01, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x04, 0x10, 0x00, 0x00
.byte 0x6d, 0x61, 0x69, 0x6e
.byte 0x00, 0xf3, 0xf2, 0xf1
# Modifier (0x1006) {
# TypeLeafKind: LF_MODIFIER (0x1001)
# ModifiedType: int (0x74)
# Modifiers [ (0x2)
# Volatile (0x2)
# ]
# }
.byte 0x0a, 0x00, 0x01, 0x10
.byte 0x74, 0x00, 0x00, 0x00
.byte 0x02, 0x00, 0xf2, 0xf1
# StringId (0x1007) {
# TypeLeafKind: LF_STRING_ID (0x1605)
# Id: 0x0
# StringData: C:\src\llvm-project\build
# }
.byte 0x22, 0x00, 0x05, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x43, 0x3a, 0x5c, 0x73
.byte 0x72, 0x63, 0x5c, 0x6c
.byte 0x6c, 0x76, 0x6d, 0x2d
.byte 0x70, 0x72, 0x6f, 0x6a
.byte 0x65, 0x63, 0x74, 0x5c
.byte 0x62, 0x75, 0x69, 0x6c
.byte 0x64, 0x00, 0xf2, 0xf1
# StringId (0x1008) {
# TypeLeafKind: LF_STRING_ID (0x1605)
# Id: 0x0
# StringData: t.c
# }
.byte 0x0a, 0x00, 0x05, 0x16
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x74, 0x2e, 0x63, 0x00
# BuildInfo (0x1009) {
# TypeLeafKind: LF_BUILDINFO (0x1603)
# NumArgs: 5
# Arguments [
# ArgType: C:\src\llvm-project\build (0x1007)
# ArgType: 0x0
# ArgType: t.c (0x1008)
# ArgType: 0x0
# ArgType: 0x0
# ]
# }
.byte 0x1a, 0x00, 0x03, 0x16
.byte 0x05, 0x00, 0x07, 0x10
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x08, 0x10
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0x00, 0x00
.byte 0x00, 0x00, 0xf2, 0xf1
.addrsig
.addrsig_sym x

View File

@ -0,0 +1,46 @@
# Check that unknown symbol subsections are ignored with a warning, and a PDB
# is produced anyway.
# REQUIRES: x86
# RUN: llvm-mc -triple=i386-pc-win32 -filetype=obj -o %t.obj %s
# RUN: lld-link -subsystem:console -debug -nodefaultlib -entry:foo -out:%t.exe -pdb:%t.pdb %t.obj 2>&1 | FileCheck %s --check-prefix=WARNING
# RUN: llvm-pdbutil dump -symbols %t.pdb | FileCheck %s
# WARNING: ignoring unknown debug$S subsection kind 0xFF
# CHECK: Symbols
# CHECK: 4 | S_COMPILE3 [size = 52]
# CHECK: machine = intel x86-x64, Ver = clang version SENTINEL, language = c
.text
_foo:
ret
.global _foo
.section .debug$S,"dr"
.p2align 2
.long 4 # Debug section magic
.long 0xF1 # Symbol subsection
.long .Ltmp6-.Ltmp5 # Subsection size
.Ltmp5:
.short .Ltmp8-.Ltmp7 # Record length
.Ltmp7:
.short 4412 # Record kind: S_COMPILE3
.long 0 # Flags and language
.short 208 # CPUType
.short 9 # Frontend version
.short 0
.short 0
.short 0
.short 9000 # Backend version
.short 0
.short 0
.short 0
.asciz "clang version SENTINEL" # Null-terminated compiler version string
.p2align 2
.Ltmp8:
.Ltmp6:
.long 0xFF # Unknown subsection kind
.long 4 # Subsection size
.long 0

View File

@ -70,6 +70,11 @@ public:
}
Error initialize(BinaryStreamReader Reader);
Error initialize(BinaryStreamRef Section) {
return initialize(BinaryStreamReader(Section));
}
bool valid() const { return Lines.valid(); }
bool hasExtraFiles() const;
Iterator begin() const { return Lines.begin(); }
@ -77,7 +82,7 @@ public:
private:
InlineeLinesSignature Signature;
VarStreamArray<InlineeSourceLine> Lines;
LinesArray Lines;
};
class DebugInlineeLinesSubsection final : public DebugSubsection {

View File

@ -995,6 +995,10 @@ Error DumpOutputStyle::dumpInlineeLines() {
P.formatLine("{0,+8} | {1,+5} | ", Entry.Header->Inlinee,
fmtle(Entry.Header->SourceLineNum));
Strings.formatFromChecksumsOffset(P, Entry.Header->FileID, true);
for (const auto &ExtraFileID : Entry.ExtraFiles) {
P.formatLine(" ");
Strings.formatFromChecksumsOffset(P, ExtraFileID, true);
}
}
P.NewLine();
});