1 files changed, 15 insertions, 12 deletions
diff --git a/lib/sanitizer_common/sanitizer_linux.h b/lib/sanitizer_common/sanitizer_linux.h
index a32e9bf08badc..3013c25f7c386 100644
--- a/lib/sanitizer_common/sanitizer_linux.h
+++ b/lib/sanitizer_common/sanitizer_linux.h
@@ -14,7 +14,7 @@
 #define SANITIZER_LINUX_H
 
 #include "sanitizer_platform.h"
-#if SANITIZER_LINUX
+#if SANITIZER_FREEBSD || SANITIZER_LINUX
 #include "sanitizer_common.h"
 #include "sanitizer_internal_defs.h"
 #include "sanitizer_platform_limits_posix.h"
@@ -29,20 +29,25 @@ struct linux_dirent;
 
 // Syscall wrappers.
 uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
-uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
 uptr internal_sigaltstack(const struct sigaltstack* ss,
                           struct sigaltstack* oss);
-uptr internal_sigaction(int signum, const __sanitizer_kernel_sigaction_t *act,
-    __sanitizer_kernel_sigaction_t *oldact);
-uptr internal_sigprocmask(int how, __sanitizer_kernel_sigset_t *set,
-    __sanitizer_kernel_sigset_t *oldset);
-void internal_sigfillset(__sanitizer_kernel_sigset_t *set);
-void internal_sigdelset(__sanitizer_kernel_sigset_t *set, int signum);
+uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
+    __sanitizer_sigset_t *oldset);
+void internal_sigfillset(__sanitizer_sigset_t *set);
 
-#ifdef __x86_64__
+// Linux-only syscalls.
+#if SANITIZER_LINUX
+uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
+// Used only by sanitizer_stoptheworld. Signal handlers that are actually used
+// (like the process-wide error reporting SEGV handler) must use
+// internal_sigaction instead.
+int internal_sigaction_norestorer(int signum, const void *act, void *oldact);
+void internal_sigdelset(__sanitizer_sigset_t *set, int signum);
+#if defined(__x86_64__)
 uptr internal_clone(int (*fn)(void *), void *child_stack, int flags, void *arg,
                     int *parent_tidptr, void *newtls, int *child_tidptr);
 #endif
+#endif  // SANITIZER_LINUX
 
 // This class reads thread IDs from /proc/<pid>/task using only syscalls.
 class ThreadLister {
@@ -66,8 +71,6 @@ class ThreadLister {
   int bytes_read_;
 };
 
-void AdjustStackSizeLinux(void *attr);
-
 // Exposed for testing.
 uptr ThreadDescriptorSize();
 uptr ThreadSelf();
@@ -86,5 +89,5 @@ void CacheBinaryName();
 void ForEachMappedRegion(link_map *map, void (*cb)(const void *, uptr));
 }  // namespace __sanitizer
 
-#endif  // SANITIZER_LINUX
+#endif  // SANITIZER_FREEBSD || SANITIZER_LINUX
 #endif  // SANITIZER_LINUX_H