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Include ubsan runtime even when building a shared library. We don't require the executable to be linked with UBSan. 

llvm-svn: 172856
This commit is contained in:
Richard Smith 2013-01-18 22:09:26 +00:00
parent b2206e71e1
commit f75c8b3c8d
2 changed files with 19 additions and 11 deletions
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20
clang/lib/Driver/Tools.cpp
View File

@ -1587,17 +1587,15 @@ static void addMsanRTLinux(const ToolChain &TC, const ArgList &Args,
/// (Linux).
static void addUbsanRTLinux(const ToolChain &TC, const ArgList &Args,
ArgStringList &CmdArgs) {
if (!Args.hasArg(options::OPT_shared)) {
// LibUbsan is "libclang_rt.ubsan-<ArchName>.a" in the Linux library
// resource directory.
SmallString<128> LibUbsan(TC.getDriver().ResourceDir);
llvm::sys::path::append(LibUbsan, "lib", "linux",
(Twine("libclang_rt.ubsan-") +
TC.getArchName() + ".a"));
CmdArgs.push_back(Args.MakeArgString(LibUbsan));
CmdArgs.push_back("-lpthread");
CmdArgs.push_back("-export-dynamic");
}
// LibUbsan is "libclang_rt.ubsan-<ArchName>.a" in the Linux library
// resource directory.
SmallString<128> LibUbsan(TC.getDriver().ResourceDir);
llvm::sys::path::append(LibUbsan, "lib", "linux",
(Twine("libclang_rt.ubsan-") +
TC.getArchName() + ".a"));
CmdArgs.push_back(Args.MakeArgString(LibUbsan));
CmdArgs.push_back("-lpthread");
CmdArgs.push_back("-export-dynamic");
}
static bool shouldUseFramePointer(const ArgList &Args,

10
clang/test/Driver/ubsan-ld.c
View File

@ -9,6 +9,16 @@
// CHECK-LINUX: libclang_rt.ubsan-i386.a"
// CHECK-LINUX: "-lpthread"
// RUN: %clang -fsanitize=undefined %s -### -o %t.o 2>&1 \
// RUN: -target i386-unknown-linux \
// RUN: --sysroot=%S/Inputs/basic_linux_tree \
// RUN: -shared \
// RUN: | FileCheck --check-prefix=CHECK-LINUX-SHARED %s
// CHECK-LINUX-SHARED: "{{.*}}ld{{(.exe)?}}"
// CHECK-LINUX-SHARED-NOT: "-lc"
// CHECK-LINUX-SHARED: libclang_rt.ubsan-i386.a"
// CHECK-LINUX-SHARED: "-lpthread"
// RUN: %clang -fsanitize=bounds %s -### -o %t.o 2>&1 \
// RUN: -target i386-unknown-linux \
// RUN: --sysroot=%S/Inputs/basic_linux_tree \