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| author | Daniil Kovalev <dkovalev@accesssoftek.com> | 2024-03-01 19:48:08 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-03-01 19:48:08 +0300 |
| commit | 8f65e7b917c580d1b58b024db6fc889cbcd964c7 (patch) | |
| tree | 2c06e3b0bdb19bbec253c351e5caf5d54282dad9 /llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | 8fa33013de5d2c47da93083642cf9f655a3d9722 (diff) | |
| download | llvm-8f65e7b917c580d1b58b024db6fc889cbcd964c7.zip llvm-8f65e7b917c580d1b58b024db6fc889cbcd964c7.tar.gz llvm-8f65e7b917c580d1b58b024db6fc889cbcd964c7.tar.bz2 | |
[Dwarf] Support `__ptrauth` qualifier in metadata nodes (#82363)
Emit `__ptrauth`-qualified types as `DIDerivedType` metadata nodes in IR
with tag `DW_TAG_LLVM_ptrauth_type`, baseType referring to the type
which has the qualifier applied, and the following parameters
representing the signing schema:
- `ptrAuthKey` (integer)
- `ptrAuthIsAddressDiscriminated` (boolean)
- `ptrAuthExtraDiscriminator` (integer)
- `ptrAuthIsaPointer` (boolean)
- `ptrAuthAuthenticatesNullValues` (boolean)
Co-authored-by: Ahmed Bougacha <ahmed@bougacha.org>
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')
| -rw-r--r-- | llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp index 656f2a6..85319dc 100644 --- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp +++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp @@ -1804,6 +1804,11 @@ void ModuleBitcodeWriter::writeDIDerivedType(const DIDerivedType *N, Record.push_back(VE.getMetadataOrNullID(N->getAnnotations().get())); + if (auto PtrAuthData = N->getPtrAuthData()) + Record.push_back(PtrAuthData->Payload.RawData); + else + Record.push_back(0); + Stream.EmitRecord(bitc::METADATA_DERIVED_TYPE, Record, Abbrev); Record.clear(); } |