gecko-dev/mozglue/linker/Logging.h

60 lines
1.7 KiB
C

/* 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
#ifdef ANDROID
#include <android/log.h>
#define log(...) __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__)
#endif
#ifdef MOZ_DEBUG_LINKER
#define debug log
#else
#define debug(...)
#endif
/* HAVE_64BIT_OS is not defined when building host tools, so use
* __SIZEOF_POINTER__ */
#if defined(HAVE_64BIT_OS) || __SIZEOF_POINTER__ == 8
# 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 */