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Diffstat (limited to 'src/config.h')
| -rw-r--r-- | src/config.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/config.h b/src/config.h new file mode 100644 index 000000000000..9b246347a851 --- /dev/null +++ b/src/config.h @@ -0,0 +1,127 @@ +//===----------------------------- config.h -------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +// +// Defines macros used within libuwind project. +// +//===----------------------------------------------------------------------===// + + +#ifndef LIBUNWIND_CONFIG_H +#define LIBUNWIND_CONFIG_H + +#include <assert.h> +#include <stdio.h> + +// Define static_assert() unless already defined by compiler. +#ifndef __has_feature + #define __has_feature(__x) 0 +#endif +#if !(__has_feature(cxx_static_assert)) && !defined(static_assert) + #define static_assert(__b, __m) \ + extern int compile_time_assert_failed[ ( __b ) ? 1 : -1 ] \ + __attribute__( ( unused ) ); +#endif + +// Platform specific configuration defines. +#ifdef __APPLE__ + #include <Availability.h> + #ifdef __cplusplus + extern "C" { + #endif + void __assert_rtn(const char *, const char *, int, const char *) + __attribute__((noreturn)); + #ifdef __cplusplus + } + #endif + + #define _LIBUNWIND_BUILD_ZERO_COST_APIS (defined(__i386__) || \ + defined(__x86_64__) || \ + defined(__arm64__)) + #define _LIBUNWIND_BUILD_SJLJ_APIS defined(__arm__) + #define _LIBUNWIND_SUPPORT_FRAME_APIS (defined(__i386__) || \ + defined(__x86_64__)) + #define _LIBUNWIND_EXPORT __attribute__((visibility("default"))) + #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden"))) + #define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libuwind: " msg, __VA_ARGS__) + #define _LIBUNWIND_ABORT(msg) __assert_rtn(__func__, __FILE__, __LINE__, msg) + + #if defined(FOR_DYLD) + #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1 + #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 0 + #define _LIBUNWIND_SUPPORT_DWARF_INDEX 0 + #else + #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1 + #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 + #define _LIBUNWIND_SUPPORT_DWARF_INDEX 0 + #endif + +#else + #include <stdlib.h> + + static inline void assert_rtn(const char* func, const char* file, int line, const char* msg) __attribute__ ((noreturn)); + static inline void assert_rtn(const char* func, const char* file, int line, const char* msg) { + fprintf(stderr, "libunwind: %s %s:%d - %s\n", func, file, line, msg); + assert(false); + abort(); + } + + #define _LIBUNWIND_BUILD_ZERO_COST_APIS (defined(__i386__) || \ + defined(__x86_64__) || \ + defined(__arm__) || \ + defined(__aarch64__)) + #define _LIBUNWIND_BUILD_SJLJ_APIS 0 + #define _LIBUNWIND_SUPPORT_FRAME_APIS (defined(__i386__) || \ + defined(__x86_64__)) + #define _LIBUNWIND_EXPORT __attribute__((visibility("default"))) + #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden"))) + #define _LIBUNWIND_LOG(msg, ...) fprintf(stderr, "libuwind: " msg, __VA_ARGS__) + #define _LIBUNWIND_ABORT(msg) assert_rtn(__func__, __FILE__, __LINE__, msg) + + #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 0 + #define _LIBUNWIND_SUPPORT_DWARF_UNWIND !defined(__arm__) || \ + defined(__ARM_DWARF_EH__) + #define _LIBUNWIND_SUPPORT_DWARF_INDEX _LIBUNWIND_SUPPORT_DWARF_UNWIND +#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_TRACE_UNWINDING(msg, ...) + #define _LIBUNWIND_LOG_NON_ZERO(x) x +#else + #ifdef __cplusplus + extern "C" { + #endif + extern bool logAPIs(); + extern bool logUnwinding(); + #ifdef __cplusplus + } + #endif + #define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__) + #define _LIBUNWIND_LOG_NON_ZERO(x) \ + do { \ + int _err = x; \ + if ( _err != 0 ) \ + _LIBUNWIND_LOG("" #x "=%d in %s", _err, __FUNCTION__); \ + } while (0) + #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_TRACING_UNWINDING logUnwinding() +#endif + + +#endif // LIBUNWIND_CONFIG_H |