mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
07aa3556c4
For projects depending on LLVM, I find it very useful to combine a release-no-asserts build of LLVM with a debug+asserts build of the dependent project. The motivation is that when developing a dependent project, you are debugging that project itself, not LLVM. In my usecase, a significant part of the runtime is spent in LLVM optimization passes, so I would like to build LLVM without assertions to get the best performance from this combination. Currently, `lib/Support/Debug.cpp` changes the set of symbols it provides depending on NDEBUG, while `include/llvm/Support/Debug.h` requires extra symbols when NDEBUG is not defined. Thus, it is not possible to enable assertions in an external project that uses facilities of `Debug.h`. This patch changes `Debug.cpp` and `Valgrind.cpp` to always define the symbols that other code may depend on when #including LLVM headers without NDEBUG. http://reviews.llvm.org/D7662 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229819 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
//===-- Valgrind.cpp - Implement Valgrind communication ---------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Defines Valgrind communication methods, if HAVE_VALGRIND_VALGRIND_H is
|
|
// defined. If we have valgrind.h but valgrind isn't running, its macros are
|
|
// no-ops.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/Valgrind.h"
|
|
#include "llvm/Config/config.h"
|
|
|
|
#if HAVE_VALGRIND_VALGRIND_H
|
|
#include <valgrind/valgrind.h>
|
|
|
|
static bool InitNotUnderValgrind() {
|
|
return !RUNNING_ON_VALGRIND;
|
|
}
|
|
|
|
// This bool is negated from what we'd expect because code may run before it
|
|
// gets initialized. If that happens, it will appear to be 0 (false), and we
|
|
// want that to cause the rest of the code in this file to run the
|
|
// Valgrind-provided macros.
|
|
static const bool NotUnderValgrind = InitNotUnderValgrind();
|
|
|
|
bool llvm::sys::RunningOnValgrind() {
|
|
if (NotUnderValgrind)
|
|
return false;
|
|
return RUNNING_ON_VALGRIND;
|
|
}
|
|
|
|
void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
|
|
if (NotUnderValgrind)
|
|
return;
|
|
|
|
VALGRIND_DISCARD_TRANSLATIONS(Addr, Len);
|
|
}
|
|
|
|
#else // !HAVE_VALGRIND_VALGRIND_H
|
|
|
|
bool llvm::sys::RunningOnValgrind() {
|
|
return false;
|
|
}
|
|
|
|
void llvm::sys::ValgrindDiscardTranslations(const void *Addr, size_t Len) {
|
|
}
|
|
|
|
#endif // !HAVE_VALGRIND_VALGRIND_H
|
|
|
|
// These functions require no implementation, tsan just looks at the arguments
|
|
// they're called with. However, they are required to be weak as some other
|
|
// application or library may already be providing these definitions for the
|
|
// same reason we are.
|
|
extern "C" {
|
|
LLVM_ATTRIBUTE_WEAK void AnnotateHappensAfter(const char *file, int line,
|
|
const volatile void *cv);
|
|
void AnnotateHappensAfter(const char *file, int line, const volatile void *cv) {
|
|
}
|
|
LLVM_ATTRIBUTE_WEAK void AnnotateHappensBefore(const char *file, int line,
|
|
const volatile void *cv);
|
|
void AnnotateHappensBefore(const char *file, int line,
|
|
const volatile void *cv) {}
|
|
LLVM_ATTRIBUTE_WEAK void AnnotateIgnoreWritesBegin(const char *file, int line);
|
|
void AnnotateIgnoreWritesBegin(const char *file, int line) {}
|
|
LLVM_ATTRIBUTE_WEAK void AnnotateIgnoreWritesEnd(const char *file, int line);
|
|
void AnnotateIgnoreWritesEnd(const char *file, int line) {}
|
|
}
|
|
|