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config: clean up some of the macro definition 

Unify the definition of `_LIBUNWIND_LOG_NON_ZERO` to make it clear what
it is defined to and make the definition unconditional.  Reorder the
debug and tracing macros to be defined in the same order.  NFC.

llvm-svn: 292720
This commit is contained in:
Saleem Abdulrasool 2017-01-21 16:22:53 +00:00
parent eae1b66c1b
commit 8ecd010547
1 changed files with 25 additions and 21 deletions
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46
libunwind/src/config.h
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@ -85,22 +85,32 @@
fflush(stderr); \
abort(); \
} while (0)
#define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libunwind: " msg "\n", __VA_ARGS__)
#define _LIBUNWIND_LOG(msg, ...) \
fprintf(stderr, "libunwind: " msg "\n", __VA_ARGS__)
#if defined(_LIBUNWIND_HAS_NO_THREADS)
// only used with pthread calls, not needed for the single-threaded builds
#define _LIBUNWIND_LOG_NON_ZERO(x)
#else
#if defined(NDEBUG)
#define _LIBUNWIND_LOG_NON_ZERO(x) x
#else
#define _LIBUNWIND_LOG_NON_ZERO(x) \
do { \
int _err = x; \
if (_err != 0) \
_LIBUNWIND_LOG("" #x "=%d in %s", _err, __FUNCTION__); \
} while (0)
#endif
#endif
// Macros that define away in non-Debug builds
#ifdef NDEBUG
#define _LIBUNWIND_DEBUG_LOG(msg, ...)
#define _LIBUNWIND_TRACE_API(msg, ...)
#define _LIBUNWIND_TRACING_UNWINDING 0
#define _LIBUNWIND_TRACING_UNWINDING (0)
#define _LIBUNWIND_TRACE_UNWINDING(msg, ...)
#ifndef _LIBUNWIND_LOG_NON_ZERO
#define _LIBUNWIND_LOG_NON_ZERO(x) x
#endif
#else
#ifdef __cplusplus
extern "C" {
@ -111,23 +121,17 @@
}
#endif
#define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__)
#ifndef _LIBUNWIND_LOG_NON_ZERO
#define _LIBUNWIND_LOG_NON_ZERO(x) \
do { \
int _err = x; \
if ( _err != 0 ) \
_LIBUNWIND_LOG("" #x "=%d in %s", _err, __FUNCTION__); \
} while (0)
#endif
#define _LIBUNWIND_TRACE_API(msg, ...) \
do { \
if ( logAPIs() ) _LIBUNWIND_LOG(msg, __VA_ARGS__); \
} while(0)
#define _LIBUNWIND_TRACE_UNWINDING(msg, ...) \
do { \
if ( logUnwinding() ) _LIBUNWIND_LOG(msg, __VA_ARGS__); \
} while(0)
#define _LIBUNWIND_TRACE_API(msg, ...) \
do { \
if (logAPIs()) \
_LIBUNWIND_LOG(msg, __VA_ARGS__); \
} while (0)
#define _LIBUNWIND_TRACING_UNWINDING logUnwinding()
#define _LIBUNWIND_TRACE_UNWINDING(msg, ...) \
do { \
if (logUnwinding()) \
_LIBUNWIND_LOG(msg, __VA_ARGS__); \
} while (0)
#endif
#ifdef __cplusplus