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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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mozglue/linker/Logging.h Normal file
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/* 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 Logging_h
#define Logging_h
#include "mozilla/Likely.h"
#ifdef ANDROID
#include <android/log.h>
#define LOG(...) __android_log_print(ANDROID_LOG_INFO, "GeckoLinker", __VA_ARGS__)
#define WARN(...) __android_log_print(ANDROID_LOG_WARN, "GeckoLinker", __VA_ARGS__)
#define ERROR(...) __android_log_print(ANDROID_LOG_ERROR, "GeckoLinker", __VA_ARGS__)
#else
#include <cstdio>
/* Expand to 1 or m depending on whether there is one argument or more
* given. */
#define MOZ_ONE_OR_MORE_ARGS_IMPL2(_1, _2, _3, _4, _5, _6, _7, _8, _9, N, ...) \
N
#define MOZ_ONE_OR_MORE_ARGS_IMPL(args) MOZ_ONE_OR_MORE_ARGS_IMPL2 args
#define MOZ_ONE_OR_MORE_ARGS(...) \
MOZ_ONE_OR_MORE_ARGS_IMPL((__VA_ARGS__, m, m, m, m, m, m, m, m, 1, 0))
#define MOZ_MACRO_GLUE(a, b) a b
#define MOZ_CONCAT2(a, b) a ## b
#define MOZ_CONCAT1(a, b) MOZ_CONCAT2(a, b)
#define MOZ_CONCAT(a, b) MOZ_CONCAT1(a, b)
/* Some magic to choose between LOG1 and LOGm depending on the number of
* arguments */
#define MOZ_CHOOSE_LOG(...) \
MOZ_MACRO_GLUE(MOZ_CONCAT(LOG, MOZ_ONE_OR_MORE_ARGS(__VA_ARGS__)), \
(__VA_ARGS__))
#define LOG1(format) fprintf(stderr, format "\n")
#define LOGm(format, ...) fprintf(stderr, format "\n", __VA_ARGS__)
#define LOG(...) MOZ_CHOOSE_LOG(__VA_ARGS__)
#define WARN(...) MOZ_CHOOSE_LOG("Warning: " __VA_ARGS__)
#define ERROR(...) MOZ_CHOOSE_LOG("Error: " __VA_ARGS__)
#endif
class Logging
{
public:
static bool isVerbose()
{
return Singleton.verbose;
}
private:
bool verbose;
public:
static void Init()
{
const char *env = getenv("MOZ_DEBUG_LINKER");
if (env && *env == '1')
Singleton.verbose = true;
}
private:
static Logging Singleton;
};
#define DEBUG_LOG(...) \
do { \
if (MOZ_UNLIKELY(Logging::isVerbose())) { \
LOG(__VA_ARGS__); \
} \
} while(0)
#if defined(__LP64__)
# define PRIxAddr "lx"
# define PRIxSize "lx"
# define PRIdSize "ld"
# define PRIuSize "lu"
#else
# define PRIxAddr "x"
# define PRIxSize "x"
# define PRIdSize "d"
# define PRIuSize "u"
#endif
#endif /* Logging_h */