[compiler-rt] r211418 - tsan: port to freebsd

[Dmitry Vyukov]

Author: dvyukov
Date: Fri Jun 20 17:51:18 2014
New Revision: 211418

URL: http://llvm.org/viewvc/llvm-project?rev=211418&view=rev
Log:
tsan: port to freebsd

Modified:
    compiler-rt/trunk/lib/tsan/rtl/tsan_platform_linux.cc

Modified: compiler-rt/trunk/lib/tsan/rtl/tsan_platform_linux.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/tsan/rtl/tsan_platform_linux.cc?rev=211418&r1=211417&r2=211418&view=diff
==============================================================================
--- compiler-rt/trunk/lib/tsan/rtl/tsan_platform_linux.cc (original)
+++ compiler-rt/trunk/lib/tsan/rtl/tsan_platform_linux.cc Fri Jun 20 17:51:18 2014
@@ -14,7 +14,7 @@
 
 
 #include "sanitizer_common/sanitizer_platform.h"
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX || SANITIZER_FREEBSD
 
 #include "sanitizer_common/sanitizer_common.h"
 #include "sanitizer_common/sanitizer_libc.h"
@@ -42,8 +42,10 @@
 #include <errno.h>
 #include <sched.h>
 #include <dlfcn.h>
+#if SANITIZER_LINUX
 #define __need_res_state
 #include <resolv.h>
+#endif
 
 #ifdef sa_handler
 # undef sa_handler
@@ -53,6 +55,11 @@
 # undef sa_sigaction
 #endif
 
+#if SANITIZER_FREEBSD
+extern "C" void *__libc_stack_end;
+void *__libc_stack_end = 0;
+#endif
+
 namespace __tsan {
 
 const uptr kPageSize = 4096;
@@ -107,15 +114,18 @@ uptr GetRSS() {
   return mem[6];
 }
 
-
+#if SANITIZER_LINUX
 void FlushShadowMemoryCallback(
     const SuspendedThreadsList &suspended_threads_list,
     void *argument) {
   FlushUnneededShadowMemory(kLinuxShadowBeg, kLinuxShadowEnd - kLinuxShadowBeg);
 }
+#endif
 
 void FlushShadowMemory() {
+#if SANITIZER_LINUX
   StopTheWorld(FlushShadowMemoryCallback, 0);
+#endif
 }
 
 #ifndef TSAN_GO
@@ -360,6 +370,7 @@ bool IsGlobalVar(uptr addr) {
 // This is required to properly "close" the fds, because we do not see internal
 // closes within glibc. The code is a pure hack.
 int ExtractResolvFDs(void *state, int *fds, int nfd) {
+#if SANITIZER_LINUX
   int cnt = 0;
   __res_state *statp = (__res_state*)state;
   for (int i = 0; i < MAXNS && cnt < nfd; i++) {
@@ -367,6 +378,9 @@ int ExtractResolvFDs(void *state, int *f
       fds[cnt++] = statp->_u._ext.nssocks[i];
   }
   return cnt;
+#else
+  return 0;
+#endif
 }
 
 // Extract file descriptors passed via UNIX domain sockets.