From 70d33edf9c0838e17620bf7234cde34899285ddc Mon Sep 17 00:00:00 2001
From: Mike Aizatsky <aizatsky@chromium.org>
Date: Tue, 17 May 2016 22:26:50 +0000
Subject: [sanitizer] Move *fstat to the common interceptors

Summary:
Adds *fstat to the common interceptors.

Removes the now-duplicate fstat interceptor from msan/tsan
This adds fstat to asan/esan, which previously did not intercept it.

Reviewers: eugenis, vitalybuka, aizatsky

Subscribers: tberghammer, danalbert, srhines, kubabrecka, bruening, kcc

Differential Revision: http://reviews.llvm.org/D20318

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269856 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/msan/msan_interceptors.cc | 65 ++-----------------------------------------
 1 file changed, 3 insertions(+), 62 deletions(-)

(limited to 'lib/msan/msan_interceptors.cc')

diff --git a/lib/msan/msan_interceptors.cc b/lib/msan/msan_interceptors.cc
index f23d3eeb3..71a8e6d64 100644
--- a/lib/msan/msan_interceptors.cc
+++ b/lib/msan/msan_interceptors.cc
@@ -684,64 +684,6 @@ INTERCEPTOR(int, putenv, char *string) {
   return res;
 }
 
-#if !SANITIZER_FREEBSD
-INTERCEPTOR(int, __fxstat, int magic, int fd, void *buf) {
-  ENSURE_MSAN_INITED();
-  int res = REAL(__fxstat)(magic, fd, buf);
-  if (!res)
-    __msan_unpoison(buf, __sanitizer::struct_stat_sz);
-  return res;
-}
-#define MSAN_MAYBE_INTERCEPT___FXSTAT INTERCEPT_FUNCTION(__fxstat)
-#else
-#define MSAN_MAYBE_INTERCEPT___FXSTAT
-#endif
-
-#if !SANITIZER_FREEBSD
-INTERCEPTOR(int, __fxstat64, int magic, int fd, void *buf) {
-  ENSURE_MSAN_INITED();
-  int res = REAL(__fxstat64)(magic, fd, buf);
-  if (!res)
-    __msan_unpoison(buf, __sanitizer::struct_stat64_sz);
-  return res;
-}
-#define MSAN_MAYBE_INTERCEPT___FXSTAT64 INTERCEPT_FUNCTION(__fxstat64)
-#else
-#define MSAN_MAYBE_INTERCEPT___FXSTAT64
-#endif
-
-#if SANITIZER_FREEBSD
-INTERCEPTOR(int, fstatat, int fd, char *pathname, void *buf, int flags) {
-  ENSURE_MSAN_INITED();
-  int res = REAL(fstatat)(fd, pathname, buf, flags);
-  if (!res) __msan_unpoison(buf, __sanitizer::struct_stat_sz);
-  return res;
-}
-# define MSAN_INTERCEPT_FSTATAT INTERCEPT_FUNCTION(fstatat)
-#else
-INTERCEPTOR(int, __fxstatat, int magic, int fd, char *pathname, void *buf,
-            int flags) {
-  ENSURE_MSAN_INITED();
-  int res = REAL(__fxstatat)(magic, fd, pathname, buf, flags);
-  if (!res) __msan_unpoison(buf, __sanitizer::struct_stat_sz);
-  return res;
-}
-# define MSAN_INTERCEPT_FSTATAT INTERCEPT_FUNCTION(__fxstatat)
-#endif
-
-#if !SANITIZER_FREEBSD
-INTERCEPTOR(int, __fxstatat64, int magic, int fd, char *pathname, void *buf,
-            int flags) {
-  ENSURE_MSAN_INITED();
-  int res = REAL(__fxstatat64)(magic, fd, pathname, buf, flags);
-  if (!res) __msan_unpoison(buf, __sanitizer::struct_stat64_sz);
-  return res;
-}
-#define MSAN_MAYBE_INTERCEPT___FXSTATAT64 INTERCEPT_FUNCTION(__fxstatat64)
-#else
-#define MSAN_MAYBE_INTERCEPT___FXSTATAT64
-#endif
-
 INTERCEPTOR(int, pipe, int pipefd[2]) {
   if (msan_init_is_running)
     return REAL(pipe)(pipefd);
@@ -1303,6 +1245,9 @@ int OnExit() {
 #define COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd) \
   do {                                         \
   } while (false)
+#define COMMON_INTERCEPTOR_FD_ACCESS(ctx, fd) \
+  do {                                        \
+  } while (false)
 #define COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, newfd) \
   do {                                                      \
   } while (false)
@@ -1549,10 +1494,6 @@ void InitializeInterceptors() {
   INTERCEPT_FUNCTION(putenv);
   INTERCEPT_FUNCTION(gettimeofday);
   INTERCEPT_FUNCTION(fcvt);
-  MSAN_MAYBE_INTERCEPT___FXSTAT;
-  MSAN_INTERCEPT_FSTATAT;
-  MSAN_MAYBE_INTERCEPT___FXSTAT64;
-  MSAN_MAYBE_INTERCEPT___FXSTATAT64;
   INTERCEPT_FUNCTION(pipe);
   INTERCEPT_FUNCTION(pipe2);
   INTERCEPT_FUNCTION(socketpair);
-- 
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