[compiler-rt] r270737 - [esan][cfrag] Add skeleton for cache fragmentation tool support
Qin Zhao via llvm-commits
llvm-commits at lists.llvm.org
Wed May 25 10:49:01 PDT 2016
Author: zhaoqin
Date: Wed May 25 12:49:00 2016
New Revision: 270737
URL: http://llvm.org/viewvc/llvm-project?rev=270737&view=rev
Log:
[esan][cfrag] Add skeleton for cache fragmentation tool support
Summary:
Adds cache_frag.h and cache_frag.cpp for the cache fragmentation tool.
Updates test struct-simple.cpp.
Reviewers: aizatsky
Subscribers: filcab, zhaoqin, llvm-commits, eugenis, vitalybuka, kcc, bruening, kubabrecka
Differential Revision: http://reviews.llvm.org/D20538
Added:
compiler-rt/trunk/lib/esan/cache_frag.cpp
compiler-rt/trunk/lib/esan/cache_frag.h
Modified:
compiler-rt/trunk/lib/esan/CMakeLists.txt
compiler-rt/trunk/lib/esan/esan.cpp
compiler-rt/trunk/test/esan/TestCases/struct-simple.cpp
Modified: compiler-rt/trunk/lib/esan/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/esan/CMakeLists.txt?rev=270737&r1=270736&r2=270737&view=diff
==============================================================================
--- compiler-rt/trunk/lib/esan/CMakeLists.txt (original)
+++ compiler-rt/trunk/lib/esan/CMakeLists.txt Wed May 25 12:49:00 2016
@@ -12,6 +12,7 @@ set(ESAN_SOURCES
esan_flags.cpp
esan_interface.cpp
esan_interceptors.cpp
+ cache_frag.cpp
working_set.cpp)
foreach (arch ${ESAN_SUPPORTED_ARCH})
Added: compiler-rt/trunk/lib/esan/cache_frag.cpp
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/esan/cache_frag.cpp?rev=270737&view=auto
==============================================================================
--- compiler-rt/trunk/lib/esan/cache_frag.cpp (added)
+++ compiler-rt/trunk/lib/esan/cache_frag.cpp Wed May 25 12:49:00 2016
@@ -0,0 +1,40 @@
+//===-- cache_frag.cpp ----------------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of EfficiencySanitizer, a family of performance tuners.
+//
+// This file contains cache fragmentation-specific code.
+//===----------------------------------------------------------------------===//
+
+#include "esan.h"
+
+namespace __esan {
+
+//===-- Init/exit functions -----------------------------------------------===//
+
+void processCacheFragCompilationUnitInit(void *Ptr) {
+ VPrintf(2, "in esan::%s\n", __FUNCTION__);
+}
+
+void processCacheFragCompilationUnitExit(void *Ptr) {
+ VPrintf(2, "in esan::%s\n", __FUNCTION__);
+}
+
+void initializeCacheFrag() {
+ VPrintf(2, "in esan::%s\n", __FUNCTION__);
+}
+
+int finalizeCacheFrag() {
+ VPrintf(2, "in esan::%s\n", __FUNCTION__);
+ // FIXME: add the cache fragmentation final report.
+ Report("%s is not finished: nothing yet to report\n", SanitizerToolName);
+ return 0;
+}
+
+} // namespace __esan
Added: compiler-rt/trunk/lib/esan/cache_frag.h
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/esan/cache_frag.h?rev=270737&view=auto
==============================================================================
--- compiler-rt/trunk/lib/esan/cache_frag.h (added)
+++ compiler-rt/trunk/lib/esan/cache_frag.h Wed May 25 12:49:00 2016
@@ -0,0 +1,28 @@
+//===-- cache_frag.h --------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of EfficiencySanitizer, a family of performance tuners.
+//
+// Header for cache-fragmentation-specific code.
+//===----------------------------------------------------------------------===//
+
+#ifndef CACHE_FRAG_H
+#define CACHE_FRAG_H
+
+namespace __esan {
+
+void processCacheFragCompilationUnitInit(void *Ptr);
+void processCacheFragCompilationUnitExit(void *Ptr);
+
+void initializeCacheFrag();
+int finalizeCacheFrag();
+
+} // namespace __esan
+
+#endif // CACHE_FRAG_H
Modified: compiler-rt/trunk/lib/esan/esan.cpp
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/esan/esan.cpp?rev=270737&r1=270736&r2=270737&view=diff
==============================================================================
--- compiler-rt/trunk/lib/esan/esan.cpp (original)
+++ compiler-rt/trunk/lib/esan/esan.cpp Wed May 25 12:49:00 2016
@@ -16,6 +16,7 @@
#include "esan_flags.h"
#include "esan_interface_internal.h"
#include "esan_shadow.h"
+#include "cache_frag.h"
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_flag_parser.h"
#include "sanitizer_common/sanitizer_flags.h"
@@ -175,7 +176,7 @@ void initializeLibrary(ToolType Tool) {
initializeInterceptors();
if (WhichTool == ESAN_CacheFrag) {
- // FIXME: add runtime code for this tool
+ initializeCacheFrag();
} else if (WhichTool == ESAN_WorkingSet) {
initializeWorkingSet();
}
@@ -186,10 +187,7 @@ void initializeLibrary(ToolType Tool) {
int finalizeLibrary() {
VPrintf(1, "in esan::%s\n", __FUNCTION__);
if (WhichTool == ESAN_CacheFrag) {
- // FIXME NYI: we need to add sampling + callstack gathering and have a
- // strategy for how to generate a final report.
- // We'll move this to cache_frag.cpp once we have something.
- Report("%s is not finished: nothing yet to report\n", SanitizerToolName);
+ return finalizeCacheFrag();
} else if (WhichTool == ESAN_WorkingSet) {
return finalizeWorkingSet();
}
@@ -198,12 +196,18 @@ int finalizeLibrary() {
void processCompilationUnitInit(void *Ptr) {
VPrintf(2, "in esan::%s\n", __FUNCTION__);
+ if (WhichTool == ESAN_CacheFrag) {
+ processCacheFragCompilationUnitInit(Ptr);
+ }
}
// This is called when the containing module is unloaded.
// For the main executable module, this is called after finalizeLibrary.
void processCompilationUnitExit(void *Ptr) {
VPrintf(2, "in esan::%s\n", __FUNCTION__);
+ if (WhichTool == ESAN_CacheFrag) {
+ processCacheFragCompilationUnitExit(Ptr);
+ }
}
} // namespace __esan
Modified: compiler-rt/trunk/test/esan/TestCases/struct-simple.cpp
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/esan/TestCases/struct-simple.cpp?rev=270737&r1=270736&r2=270737&view=diff
==============================================================================
--- compiler-rt/trunk/test/esan/TestCases/struct-simple.cpp (original)
+++ compiler-rt/trunk/test/esan/TestCases/struct-simple.cpp Wed May 25 12:49:00 2016
@@ -26,13 +26,19 @@ void part()
#ifdef MAIN
int main(int argc, char **argv) {
// CHECK: in esan::initializeLibrary
- // CHECK: in esan::processCompilationUnitInit
- // CHECK: in esan::processCompilationUnitInit
+ // CHECK: in esan::initializeCacheFrag
+ // CHECK-NEXT: in esan::processCompilationUnitInit
+ // CHECK-NEXT: in esan::processCacheFragCompilationUnitInit
+ // CHECK-NEXT: in esan::processCompilationUnitInit
+ // CHECK-NEXT: in esan::processCacheFragCompilationUnitInit
part();
return 0;
- // CHECK-NEXT: in esan::finalizeLibrary
+ // CHECK: in esan::finalizeLibrary
+ // CHECK-NEXT: in esan::finalizeCacheFrag
// CHECK-NEXT: {{.*}}EfficiencySanitizer is not finished: nothing yet to report
- // CHECK: in esan::processCompilationUnitExit
- // CHECK: in esan::processCompilationUnitExit
+ // CHECK-NEXT: in esan::processCompilationUnitExit
+ // CHECK-NEXT: in esan::processCacheFragCompilationUnitExit
+ // CHECK-NEXT: in esan::processCompilationUnitExit
+ // CHECK-NEXT: in esan::processCacheFragCompilationUnitExit
}
#endif // MAIN
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