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This renames ASM_TSAN_SYMBOL and ASM_TSAN_SYMBOL_INTERCEPTOR to just ASM_SYMBOL and ASM_SYMBOL_INTERCEPTOR, because they can be useful in more places than just TSan. Also introduce a CMake function to add ASM sources to a target.
Differential Revision: https://reviews.llvm.org/D40143
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319339 91177308-0d34-0410-b5e6-96231b3b80d8
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pseudo-op: `.').
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@307549 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch ports the assembly file implementing TSan's setjmp support to AArch64 on Darwin.
Differential Revision: https://reviews.llvm.org/D35143
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@307541 91177308-0d34-0410-b5e6-96231b3b80d8
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Current AArch64 {sig}{set,long}jmp interposing requires accessing glibc
private __pointer_chk_guard to get process xor mask to demangled the
internal {sig}jmp_buf function pointers.
It causes some packing issues, as described in gcc PR#71042 [1], and is
is not a godd practice to rely on a private glibc namespace (since ABI is
not meant to be stable).
This patch fixes it by changing how libtsan obtains the guarded pointer
value: at initialization a specific routine issues a setjmp call and
using the mangled function pointer and the original value derive the
random guarded pointer.
Checked on aarch64 39-bit VMA.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71042
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@278292 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch adds assembly routines to enable setjmp/longjmp for aarch64
on linux. It fixes:
* test/tsan/longjmp2.cc
* test/tsan/longjmp3.cc
* test/tsan/longjmp4.cc
* test/tsan/signal_longjmp.cc
I also checked with perlbench from specpu2006 (it fails to run
with missing setjmp/longjmp intrumentation).
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@253205 91177308-0d34-0410-b5e6-96231b3b80d8
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