diff options
| -rw-r--r-- | llvm/lib/MC/MCCodeView.cpp | 5 | ||||
| -rw-r--r-- | llvm/test/MC/COFF/cv-empty-file-table.s | 13 |
2 files changed, 18 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCCodeView.cpp b/llvm/lib/MC/MCCodeView.cpp index 8ae0187237a..2d8ef442f75 100644 --- a/llvm/lib/MC/MCCodeView.cpp +++ b/llvm/lib/MC/MCCodeView.cpp @@ -118,6 +118,11 @@ void CodeViewContext::emitStringTable(MCObjectStreamer &OS) { } void CodeViewContext::emitFileChecksums(MCObjectStreamer &OS) { + // Do nothing if there are no file checksums. Microsoft's linker rejects empty + // CodeView substreams. + if (Filenames.empty()) + return; + MCContext &Ctx = OS.getContext(); MCSymbol *FileBegin = Ctx.createTempSymbol("filechecksums_begin", false), *FileEnd = Ctx.createTempSymbol("filechecksums_end", false); diff --git a/llvm/test/MC/COFF/cv-empty-file-table.s b/llvm/test/MC/COFF/cv-empty-file-table.s new file mode 100644 index 00000000000..157cd3167d2 --- /dev/null +++ b/llvm/test/MC/COFF/cv-empty-file-table.s @@ -0,0 +1,13 @@ +# RUN: llvm-mc -filetype=obj -triple i686-pc-win32 < %s | llvm-readobj -codeview - | FileCheck %s + .text + .section .debug$S,"dr" + .p2align 2 + .long 4 # Debug section magic + .cv_filechecksums # File index to string table offset subsection + .cv_stringtable # String table + +# CHECK: CodeViewDebugInfo [ +# CHECK: Section: .debug$S (4) +# CHECK: Magic: 0x4 +# CHECK-NOT: FileChecksum +# CHECK: ] |
