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[PowerPC] Set the default PLT mode on OpenBSD/powerpc to Secure PLT. 

OpenBSD/powerpc only supports Secure PLT.

llvm-svn: 347179
This commit is contained in:
Brad Smith 2018-11-19 00:21:06 +00:00
parent 58ceba6e46
commit a7b204b44f
3 changed files with 13 additions and 4 deletions
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10
clang/lib/Driver/ToolChains/Arch/PPC.cpp
View File

@ -107,15 +107,19 @@ void ppc::getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple,
if (FloatABI == ppc::FloatABI::Soft)
Features.push_back("-hard-float");
ppc::ReadGOTPtrMode ReadGOT = ppc::getPPCReadGOTPtrMode(D, Args);
ppc::ReadGOTPtrMode ReadGOT = ppc::getPPCReadGOTPtrMode(D, Triple, Args);
if (ReadGOT == ppc::ReadGOTPtrMode::SecurePlt)
Features.push_back("+secure-plt");
}
ppc::ReadGOTPtrMode ppc::getPPCReadGOTPtrMode(const Driver &D, const ArgList &Args) {
ppc::ReadGOTPtrMode ppc::getPPCReadGOTPtrMode(const Driver &D, const llvm::Triple &Triple,
const ArgList &Args) {
if (Args.getLastArg(options::OPT_msecure_plt))
return ppc::ReadGOTPtrMode::SecurePlt;
return ppc::ReadGOTPtrMode::Bss;
if (Triple.isOSOpenBSD())
return ppc::ReadGOTPtrMode::SecurePlt;
else
return ppc::ReadGOTPtrMode::Bss;
}
ppc::FloatABI ppc::getPPCFloatABI(const Driver &D, const ArgList &Args) {

2
clang/lib/Driver/ToolChains/Arch/PPC.h
View File

@ -38,7 +38,7 @@ FloatABI getPPCFloatABI(const Driver &D, const llvm::opt::ArgList &Args);
std::string getPPCTargetCPU(const llvm::opt::ArgList &Args);
const char *getPPCAsmModeForCPU(StringRef Name);
ReadGOTPtrMode getPPCReadGOTPtrMode(const Driver &D,
ReadGOTPtrMode getPPCReadGOTPtrMode(const Driver &D, const llvm::Triple &Triple,
const llvm::opt::ArgList &Args);
void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple,

5
clang/test/Driver/openbsd.c
View File

@ -112,3 +112,8 @@
// RUN: | FileCheck -check-prefix=CHECK-ARM-FLOAT-ABI %s
// CHECK-ARM-FLOAT-ABI-NOT: "-target-feature" "+soft-float"
// CHECK-ARM-FLOAT-ABI: "-target-feature" "+soft-float-abi"
// Check PowerPC for Secure PLT
// RUN: %clang -target powerpc-unknown-openbsd -### -c %s 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-POWERPC-SECUREPLT %s
// CHECK-POWERPC-SECUREPLT: "-target-feature" "+secure-plt"