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pdbdump: Fix crash bug.

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pdbdump calls DbiStreamBuilder::commit through PDBFileBuilder::commit
without calling DbiStreamBuilder::finalize. Because `finalize` initializes
`Header` member, `Header` remained nullptr which caused a crash bug.

Differential Revision: https://reviews.llvm.org/D23143

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277681 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rui Ueyama 2016-08-03 23:43:23 +00:00
parent e1dd154bf6
commit 6775a0d29b
3 changed files with 9 additions and 2 deletions
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2
include/llvm/DebugInfo/PDB/Raw/DbiStreamBuilder.h
View File

@ -49,7 +49,7 @@ public:
Expected<std::unique_ptr<DbiStream>> build(PDBFile &File,
const msf::WritableStream &Buffer);
Error commit(const msf::MSFLayout &Layout,
const msf::WritableStream &Buffer) const;
const msf::WritableStream &Buffer);
private:
Error finalize();

5
lib/DebugInfo/PDB/Raw/DbiStreamBuilder.cpp
View File

@ -249,7 +249,10 @@ DbiStreamBuilder::build(PDBFile &File, const msf::WritableStream &Buffer) {
}
Error DbiStreamBuilder::commit(const msf::MSFLayout &Layout,
const msf::WritableStream &Buffer) const {
const msf::WritableStream &Buffer) {
if (auto EC = finalize())
return EC;
auto InfoS =
WritableMappedBlockStream::createIndexedStream(Layout, Buffer, StreamDBI);

4
test/DebugInfo/PDB/pdbdump-readwrite.test Normal file
View File

@ -0,0 +1,4 @@
; RUN: llvm-pdbdump pdb2yaml -dbi-module-info -dbi-module-source-info \
; RUN: -dbi-stream -pdb-stream -stream-directory -stream-metadata \
; RUN: %p/Inputs/empty.pdb > %t.1
; RUN: llvm-pdbdump yaml2pdb -pdb=%t.2 %t.1