[compiler-rt] r373681 - compiler-rt: use __GLIBC_PREREQ for SANITIZER_INTERCEPT_GETRANDOM

[Vitaly Buka via llvm-commits]

Author: vitalybuka
Date: Thu Oct  3 17:38:07 2019
New Revision: 373681

URL: http://llvm.org/viewvc/llvm-project?rev=373681&view=rev
Log:
compiler-rt: use __GLIBC_PREREQ for SANITIZER_INTERCEPT_GETRANDOM

Summary: Fixes https://github.com/google/oss-fuzz/issues/2836

Reviewers: eugenis

Subscribers: dberris, #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D68178

Modified:
    compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h

Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h?rev=373681&r1=373680&r2=373681&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_platform_interceptors.h Thu Oct  3 17:38:07 2019
@@ -13,6 +13,7 @@
 #ifndef SANITIZER_PLATFORM_INTERCEPTORS_H
 #define SANITIZER_PLATFORM_INTERCEPTORS_H
 
+#include "sanitizer_glibc_version.h"
 #include "sanitizer_internal_defs.h"
 
 #if SANITIZER_POSIX
@@ -566,10 +567,9 @@
 #define SANITIZER_INTERCEPT_GETUSERSHELL (SI_POSIX && !SI_ANDROID)
 #define SANITIZER_INTERCEPT_SL_INIT (SI_FREEBSD || SI_NETBSD)
 
-#define SANITIZER_INTERCEPT_GETRANDOM SI_LINUX
+#define SANITIZER_INTERCEPT_GETRANDOM (SI_LINUX && __GLIBC_PREREQ(2, 25))
 #define SANITIZER_INTERCEPT___CXA_ATEXIT SI_NETBSD
 #define SANITIZER_INTERCEPT_ATEXIT SI_NETBSD
 #define SANITIZER_INTERCEPT_PTHREAD_ATFORK SI_NETBSD
 
-
 #endif  // #ifndef SANITIZER_PLATFORM_INTERCEPTORS_H