[compiler-rt] r182303 - [nolibc] Move GetPageSize to the individual platforms.
Peter Collingbourne
peter at pcc.me.uk
Mon May 20 10:05:29 PDT 2013
Author: pcc
Date: Mon May 20 12:05:29 2013
New Revision: 182303
URL: http://llvm.org/viewvc/llvm-project?rev=182303&view=rev
Log:
[nolibc] Move GetPageSize to the individual platforms.
GetPageSize wraps sysconf(_SC_PAGESIZE) on POSIX platforms, but
sysconf resides in libc. To make this libc-independent on Linux,
move the wrapper to sanitizer_mac.cc and return the Linux-specific
constant EXEC_PAGESIZE in the sanitizer_linux.cc implementation.
Modified:
compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc
compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc
Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc?rev=182303&r1=182302&r2=182303&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_linux.cc Mon May 20 12:05:29 2013
@@ -613,6 +613,10 @@ bool ThreadLister::GetDirectoryEntries()
return true;
}
+uptr GetPageSize() {
+ return EXEC_PAGESIZE;
+}
+
// Match full names of the form /path/to/base_name{-,.}*
bool LibraryNameIs(const char *full_name, const char *base_name) {
const char *name = full_name;
Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc?rev=182303&r1=182302&r2=182303&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_mac.cc Mon May 20 12:05:29 2013
@@ -170,6 +170,10 @@ void PrepareForSandboxing() {
// Nothing here for now.
}
+uptr GetPageSize() {
+ return sysconf(_SC_PAGESIZE);
+}
+
// ----------------- sanitizer_procmaps.h
MemoryMappingLayout::MemoryMappingLayout(bool cache_enabled) {
Modified: compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc?rev=182303&r1=182302&r2=182303&view=diff
==============================================================================
--- compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc (original)
+++ compiler-rt/trunk/lib/sanitizer_common/sanitizer_posix.cc Mon May 20 12:05:29 2013
@@ -35,10 +35,6 @@
namespace __sanitizer {
// ------------- sanitizer_common.h
-uptr GetPageSize() {
- return sysconf(_SC_PAGESIZE);
-}
-
uptr GetMmapGranularity() {
return GetPageSize();
}
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