| //===----------------------------- 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 libunwind project. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| |
| #ifndef LIBUNWIND_CONFIG_H |
| #define LIBUNWIND_CONFIG_H |
| |
| #include <assert.h> |
| #include <stdio.h> |
| #include <stdint.h> |
| #include <stdlib.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__ |
| #if defined(FOR_DYLD) |
| #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND |
| #else |
| #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND |
| #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 |
| #endif |
| #elif defined(_WIN32) |
| #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 |
| #else |
| #if defined(__ARM_DWARF_EH__) || !defined(__arm__) |
| #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 |
| #define _LIBUNWIND_SUPPORT_DWARF_INDEX 1 |
| #endif |
| #endif |
| |
| #if defined(_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS) |
| #define _LIBUNWIND_EXPORT |
| #define _LIBUNWIND_HIDDEN |
| #else |
| #if !defined(__ELF__) && !defined(__MACH__) |
| #define _LIBUNWIND_EXPORT __declspec(dllexport) |
| #define _LIBUNWIND_HIDDEN |
| #else |
| #define _LIBUNWIND_EXPORT __attribute__((visibility("default"))) |
| #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden"))) |
| #endif |
| #endif |
| |
| #if (defined(__APPLE__) && defined(__arm__)) || defined(__USING_SJLJ_EXCEPTIONS__) |
| #define _LIBUNWIND_BUILD_SJLJ_APIS |
| #endif |
| |
| #if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__) |
| #define _LIBUNWIND_SUPPORT_FRAME_APIS |
| #endif |
| |
| #if defined(__i386__) || defined(__x86_64__) || \ |
| defined(__ppc__) || defined(__ppc64__) || \ |
| (!defined(__APPLE__) && defined(__arm__)) || \ |
| (defined(__arm64__) || defined(__aarch64__)) || \ |
| defined(__mips__) |
| #define _LIBUNWIND_BUILD_ZERO_COST_APIS |
| #endif |
| |
| #if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL) |
| #define _LIBUNWIND_ABORT(msg) \ |
| do { \ |
| abort(); \ |
| } while (0) |
| #else |
| #define _LIBUNWIND_ABORT(msg) \ |
| do { \ |
| fprintf(stderr, "libunwind: %s %s:%d - %s\n", __func__, __FILE__, \ |
| __LINE__, msg); \ |
| fflush(stderr); \ |
| abort(); \ |
| } while (0) |
| #endif |
| |
| #if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL) |
| #define _LIBUNWIND_LOG(msg, ...) |
| #else |
| #define _LIBUNWIND_LOG(msg, ...) \ |
| fprintf(stderr, "libunwind: " msg "\n", __VA_ARGS__) |
| #endif |
| |
| #if defined(NDEBUG) |
| #define _LIBUNWIND_LOG_IF_FALSE(x) x |
| #else |
| #define _LIBUNWIND_LOG_IF_FALSE(x) \ |
| do { \ |
| bool _ret = x; \ |
| if (!_ret) \ |
| _LIBUNWIND_LOG("" #x " failed in %s", __FUNCTION__); \ |
| } while (0) |
| #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_DWARF (0) |
| #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) |
| #define _LIBUNWIND_TRACE_DWARF(...) |
| #else |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| extern bool logAPIs(); |
| extern bool logUnwinding(); |
| extern bool logDWARF(); |
| #ifdef __cplusplus |
| } |
| #endif |
| #define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__) |
| #define _LIBUNWIND_TRACE_API(msg, ...) \ |
| do { \ |
| if (logAPIs()) \ |
| _LIBUNWIND_LOG(msg, __VA_ARGS__); \ |
| } while (0) |
| #define _LIBUNWIND_TRACING_UNWINDING logUnwinding() |
| #define _LIBUNWIND_TRACING_DWARF logDWARF() |
| #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) \ |
| do { \ |
| if (logUnwinding()) \ |
| _LIBUNWIND_LOG(msg, __VA_ARGS__); \ |
| } while (0) |
| #define _LIBUNWIND_TRACE_DWARF(...) \ |
| do { \ |
| if (logDWARF()) \ |
| fprintf(stderr, __VA_ARGS__); \ |
| } while (0) |
| #endif |
| |
| #ifdef __cplusplus |
| // Used to fit UnwindCursor and Registers_xxx types against unw_context_t / |
| // unw_cursor_t sized memory blocks. |
| #if defined(_LIBUNWIND_IS_NATIVE_ONLY) |
| # define COMP_OP == |
| #else |
| # define COMP_OP < |
| #endif |
| template <typename _Type, typename _Mem> |
| struct check_fit { |
| template <typename T> |
| struct blk_count { |
| static const size_t count = |
| (sizeof(T) + sizeof(uint64_t) - 1) / sizeof(uint64_t); |
| }; |
| static const bool does_fit = |
| (blk_count<_Type>::count COMP_OP blk_count<_Mem>::count); |
| }; |
| #undef COMP_OP |
| #endif // __cplusplus |
| |
| #endif // LIBUNWIND_CONFIG_H |