diff options
| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-03-20 23:49:07 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-03-20 23:49:07 +0000 |
| commit | 61a574f6a306a91fe78c39757f70f88e62b6736f (patch) | |
| tree | 4ed996320927605831f99323aa9029430515392c /runtime | |
| parent | ff430f6af32468d3b09b66266aef03818230c35f (diff) | |
Split ubsan runtime into three pieces (clang part):
* libclang_rt-san-* is sanitizer_common, and is linked in only if no other
sanitizer runtime is present.
* libclang_rt-ubsan-* is the piece of the runtime which doesn't depend on
a C++ ABI library, and is always linked in.
* libclang_rt-ubsan_cxx-* is the piece of the runtime which depends on a
C++ ABI library, and is only linked in when linking a C++ binary.
This change also switches us to using -whole-archive for the ubsan runtime
(which is made possible by the above split), and switches us to only linking
the sanitizer runtime into the main binary and not into DSOs (which is made
possible by using -whole-archive).
The motivation for this is to only link a single copy of sanitizer_common
into any binary. This is becoming important now because we want to share
more state between multiple sanitizers in the same process (for instance,
we want a single shared output mutex).
The Darwin ubsan runtime is unchanged; because we use a DSO there, we don't
need this complexity.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177605 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/compiler-rt/Makefile | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/runtime/compiler-rt/Makefile b/runtime/compiler-rt/Makefile index 2a2cd7b905..e946de21a1 100644 --- a/runtime/compiler-rt/Makefile +++ b/runtime/compiler-rt/Makefile @@ -99,13 +99,14 @@ TryCompile = \ # We currently only try to generate runtime libraries on x86. ifeq ($(ARCH),x86) RuntimeLibrary.linux.Configs += \ - full-i386.a profile-i386.a asan-i386.a ubsan-i386.a + full-i386.a profile-i386.a san-i386.a asan-i386.a ubsan-i386.a \ + ubsan_cxx-i386.a endif ifeq ($(ARCH),x86_64) RuntimeLibrary.linux.Configs += \ - full-x86_64.a profile-x86_64.a asan-x86_64.a tsan-x86_64.a msan-x86_64.a \ - ubsan-x86_64.a + full-x86_64.a profile-x86_64.a san-x86_64.a asan-x86_64.a \ + tsan-x86_64.a msan-x86_64.a ubsan-x86_64.a ubsan_cxx-x86_64.a # We need to build 32-bit ASan/UBsan libraries on 64-bit platform, and add them # to the list of runtime libraries to make # "clang -fsanitize=(address|undefined) -m32" work. @@ -113,7 +114,8 @@ RuntimeLibrary.linux.Configs += \ # executable. test_source = $(LLVM_SRC_ROOT)/tools/clang/runtime/compiler-rt/clang_linux_test_input.c ifeq ($(call TryCompile,$(ToolDir)/clang,$(test_source),-m32),0) -RuntimeLibrary.linux.Configs += asan-i386.a ubsan-i386.a +RuntimeLibrary.linux.Configs += san-i386.a asan-i386.a ubsan-i386.a \ + ubsan_cxx-i386.a endif ifneq ($(LLVM_ANDROID_TOOLCHAIN_DIR),) RuntimeLibrary.linux.Configs += asan-arm-android.so |