Reuse interception_linux for NetBSD

Summary:
Part of the code inspired by the original work on libsanitizer in GCC 5.4 by Christos Zoulas.

Sponsored by <The NetBSD Foundation>

Reviewers: joerg, kcc, vitalybuka, filcab

Reviewed By: vitalybuka

Subscribers: llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D36321

llvm-svn: 310351

diff --git a/compiler-rt/lib/interception/interception_linux.cc b/compiler-rt/lib/interception/interception_linux.cc
index 6e908ac..2378042 100644 (file)
--- a/compiler-rt/lib/interception/interception_linux.cc
+++ b/compiler-rt/lib/interception/interception_linux.cc
@@ -12,14 +12,22 @@
 // Linux-specific interception methods.
 //===----------------------------------------------------------------------===//
 
-#if defined(__linux__) || defined(__FreeBSD__)
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
 #include "interception.h"
 
 #include <dlfcn.h>   // for dlsym() and dlvsym()
 
+#ifdef __NetBSD__
+#include "sanitizer_common/sanitizer_libc.h"
+#endif
+
 namespace __interception {
 bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
     uptr real, uptr wrapper) {
+#ifdef __NetBSD__
+  // XXX: Find a better way to handle renames
+  if (internal_strcmp(func_name, "sigaction") == 0) func_name = "__sigaction14";
+#endif
   *func_addr = (uptr)dlsym(RTLD_NEXT, func_name);
   return real == wrapper;
 }
@@ -32,5 +40,4 @@ void *GetFuncAddrVer(const char *func_name, const char *ver) {
 
 }  // namespace __interception
 
-
-#endif  // __linux__ || __FreeBSD__
+#endif  // __linux__ || __FreeBSD__ || __NetBSD__

diff --git a/compiler-rt/lib/interception/interception_linux.h b/compiler-rt/lib/interception/interception_linux.h
index 27a66c8..0e15bd8 100644 (file)
--- a/compiler-rt/lib/interception/interception_linux.h
+++ b/compiler-rt/lib/interception/interception_linux.h
@@ -12,7 +12,7 @@
 // Linux-specific interception methods.
 //===----------------------------------------------------------------------===//
 
-#if defined(__linux__) || defined(__FreeBSD__)
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
 
 #if !defined(INCLUDED_FROM_INTERCEPTION_LIB)
 # error "interception_linux.h should be included from interception library only"
@@ -44,4 +44,4 @@ void *GetFuncAddrVer(const char *func_name, const char *ver);
 #endif  // !defined(__ANDROID__)
 
 #endif  // INTERCEPTION_LINUX_H
-#endif  // __linux__ || __FreeBSD__
+#endif  // __linux__ || __FreeBSD__ || __NetBSD__