From ad652efa1f65e16f5380acfba1bb132145984805 Mon Sep 17 00:00:00 2001 From: Daniil Kovalev Date: Thu, 9 May 2024 15:32:18 +0300 Subject: [AArch64][PAC][clang][ELF] Support PAuth ABI core info (#85235) Depends on #87545 Emit PAuth ABI compatibility tag values as llvm module flags: - `aarch64-elf-pauthabi-platform` - `aarch64-elf-pauthabi-version` For platform 0x10000002 (llvm_linux), the version value bits correspond to the following LangOptions defined in #85232: - bit 0: `PointerAuthIntrinsics`; - bit 1: `PointerAuthCalls`; - bit 2: `PointerAuthReturns`; - bit 3: `PointerAuthAuthTraps`; - bit 4: `PointerAuthVTPtrAddressDiscrimination`; - bit 5: `PointerAuthVTPtrTypeDiscrimination`; - bit 6: `PointerAuthInitFini`. --------- Co-authored-by: Ahmed Bougacha --- clang/lib/Frontend/CompilerInvocation.cpp | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'clang/lib/Frontend/CompilerInvocation.cpp') diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index 948fe08..dbb5f56 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -3346,11 +3346,31 @@ static void GeneratePointerAuthArgs(const LangOptions &Opts, ArgumentConsumer Consumer) { if (Opts.PointerAuthIntrinsics) GenerateArg(Consumer, OPT_fptrauth_intrinsics); + if (Opts.PointerAuthCalls) + GenerateArg(Consumer, OPT_fptrauth_calls); + if (Opts.PointerAuthReturns) + GenerateArg(Consumer, OPT_fptrauth_returns); + if (Opts.PointerAuthAuthTraps) + GenerateArg(Consumer, OPT_fptrauth_auth_traps); + if (Opts.PointerAuthVTPtrAddressDiscrimination) + GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_address_discrimination); + if (Opts.PointerAuthVTPtrTypeDiscrimination) + GenerateArg(Consumer, OPT_fptrauth_vtable_pointer_type_discrimination); + if (Opts.PointerAuthInitFini) + GenerateArg(Consumer, OPT_fptrauth_init_fini); } static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args, DiagnosticsEngine &Diags) { Opts.PointerAuthIntrinsics = Args.hasArg(OPT_fptrauth_intrinsics); + Opts.PointerAuthCalls = Args.hasArg(OPT_fptrauth_calls); + Opts.PointerAuthReturns = Args.hasArg(OPT_fptrauth_returns); + Opts.PointerAuthAuthTraps = Args.hasArg(OPT_fptrauth_auth_traps); + Opts.PointerAuthVTPtrAddressDiscrimination = + Args.hasArg(OPT_fptrauth_vtable_pointer_address_discrimination); + Opts.PointerAuthVTPtrTypeDiscrimination = + Args.hasArg(OPT_fptrauth_vtable_pointer_type_discrimination); + Opts.PointerAuthInitFini = Args.hasArg(OPT_fptrauth_init_fini); } /// Check if input file kind and language standard are compatible. -- cgit v1.1