mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
8b681bc06c
Apply the following script
sed -i '
/JS_ASSERT(/ {
s/JS_ASSERT(/MOZ_ASSERT(/;
:b;
s/ \\$/\\/;
/;/ { p; d; };
n;
s/^/ /;
b b;
};
s/JS_ASSERT (/MOZ_ASSERT(/;
'
Except where the JS_ASSERT macro does not end with a semi-colon, where empty
lines are in the middle of the macro, and where the backslahes are always the
same-length after the expression.
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* vim: set ts=8 sts=4 et sw=4 tw=99:
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef js_ProfilingFrameIterator_h
|
|
#define js_ProfilingFrameIterator_h
|
|
|
|
#include "mozilla/Alignment.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "js/Utility.h"
|
|
|
|
class JSAtom;
|
|
struct JSRuntime;
|
|
|
|
namespace js {
|
|
class Activation;
|
|
class AsmJSProfilingFrameIterator;
|
|
}
|
|
|
|
namespace JS {
|
|
|
|
// This iterator can be used to walk the stack of a thread suspended at an
|
|
// arbitrary pc. To provide acurate results, profiling must have been enabled
|
|
// (via EnableRuntimeProfilingStack) before executing the callstack being
|
|
// unwound.
|
|
class JS_PUBLIC_API(ProfilingFrameIterator)
|
|
{
|
|
js::Activation *activation_;
|
|
|
|
static const unsigned StorageSpace = 6 * sizeof(void*);
|
|
mozilla::AlignedStorage<StorageSpace> storage_;
|
|
js::AsmJSProfilingFrameIterator &asmJSIter() {
|
|
MOZ_ASSERT(!done());
|
|
return *reinterpret_cast<js::AsmJSProfilingFrameIterator*>(storage_.addr());
|
|
}
|
|
const js::AsmJSProfilingFrameIterator &asmJSIter() const {
|
|
MOZ_ASSERT(!done());
|
|
return *reinterpret_cast<const js::AsmJSProfilingFrameIterator*>(storage_.addr());
|
|
}
|
|
|
|
void settle();
|
|
|
|
public:
|
|
struct RegisterState
|
|
{
|
|
RegisterState() : pc(nullptr), sp(nullptr), lr(nullptr) {}
|
|
void *pc;
|
|
void *sp;
|
|
void *lr;
|
|
};
|
|
|
|
ProfilingFrameIterator(JSRuntime *rt, const RegisterState &state);
|
|
~ProfilingFrameIterator();
|
|
void operator++();
|
|
bool done() const { return !activation_; }
|
|
|
|
// Assuming the stack grows down (we do), the return value:
|
|
// - always points into the stack
|
|
// - is weakly monotonically increasing (may be equal for successive frames)
|
|
// - will compare greater than newer native and psuedo-stack frame addresses
|
|
// and less than older native and psuedo-stack frame addresses
|
|
void *stackAddress() const;
|
|
|
|
// Return a label suitable for regexp-matching as performed by
|
|
// browser/devtools/profiler/cleopatra/js/parserWorker.js
|
|
const char *label() const;
|
|
|
|
private:
|
|
void iteratorConstruct(const RegisterState &state);
|
|
void iteratorConstruct();
|
|
void iteratorDestroy();
|
|
bool iteratorDone();
|
|
};
|
|
|
|
} // namespace JS
|
|
|
|
#endif /* js_ProfilingFrameIterator_h */
|