174 lines
6.3 KiB
C++
174 lines
6.3 KiB
C++
//===----------------------------- config.h -------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//
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// Defines macros used within libunwind project.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LIBUNWIND_CONFIG_H
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#define LIBUNWIND_CONFIG_H
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#include <assert.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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// Define static_assert() unless already defined by compiler.
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#ifndef __has_feature
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#define __has_feature(__x) 0
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#endif
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#if !(__has_feature(cxx_static_assert)) && !defined(static_assert)
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#define static_assert(__b, __m) \
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extern int compile_time_assert_failed[ ( __b ) ? 1 : -1 ] \
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__attribute__( ( unused ) );
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#endif
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// Platform specific configuration defines.
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#ifdef __APPLE__
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#if defined(FOR_DYLD)
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#define _LIBUNWIND_SUPPORT_COMPACT_UNWIND
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#else
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#define _LIBUNWIND_SUPPORT_COMPACT_UNWIND
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#define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
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#endif
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#elif defined(_WIN32)
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#define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
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#else
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#if defined(__ARM_DWARF_EH__) || !defined(__arm__)
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#define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
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#define _LIBUNWIND_SUPPORT_DWARF_INDEX 1
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#endif
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#endif
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#if defined(_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS)
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#define _LIBUNWIND_EXPORT
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#define _LIBUNWIND_HIDDEN
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#else
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#if !defined(__ELF__) && !defined(__MACH__)
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#define _LIBUNWIND_EXPORT __declspec(dllexport)
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#define _LIBUNWIND_HIDDEN
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#else
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#define _LIBUNWIND_EXPORT __attribute__((visibility("default")))
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#define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden")))
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#endif
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#endif
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#if (defined(__APPLE__) && defined(__arm__)) || defined(__USING_SJLJ_EXCEPTIONS__)
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#define _LIBUNWIND_BUILD_SJLJ_APIS
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#endif
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#if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__)
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#define _LIBUNWIND_SUPPORT_FRAME_APIS
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#endif
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#if defined(__i386__) || defined(__x86_64__) || \
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defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__) || \
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(!defined(__APPLE__) && defined(__arm__)) || \
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(defined(__arm64__) || defined(__aarch64__)) || \
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defined(__mips__)
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#define _LIBUNWIND_BUILD_ZERO_COST_APIS
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#endif
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#if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL)
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#define _LIBUNWIND_ABORT(msg) \
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do { \
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abort(); \
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} while (0)
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#else
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#define _LIBUNWIND_ABORT(msg) \
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do { \
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fprintf(stderr, "libunwind: %s %s:%d - %s\n", __func__, __FILE__, \
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__LINE__, msg); \
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fflush(stderr); \
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abort(); \
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} while (0)
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#endif
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#if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL)
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#define _LIBUNWIND_LOG0(msg)
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#define _LIBUNWIND_LOG(msg, ...)
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#else
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#define _LIBUNWIND_LOG0(msg) \
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fprintf(stderr, "libunwind: " msg "\n")
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#define _LIBUNWIND_LOG(msg, ...) \
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fprintf(stderr, "libunwind: " msg "\n", __VA_ARGS__)
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#endif
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#if defined(NDEBUG)
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#define _LIBUNWIND_LOG_IF_FALSE(x) x
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#else
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#define _LIBUNWIND_LOG_IF_FALSE(x) \
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do { \
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bool _ret = x; \
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if (!_ret) \
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_LIBUNWIND_LOG("" #x " failed in %s", __FUNCTION__); \
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} while (0)
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#endif
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// Macros that define away in non-Debug builds
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#ifdef NDEBUG
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#define _LIBUNWIND_DEBUG_LOG(msg, ...)
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#define _LIBUNWIND_TRACE_API(msg, ...)
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#define _LIBUNWIND_TRACING_UNWINDING (0)
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#define _LIBUNWIND_TRACING_DWARF (0)
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#define _LIBUNWIND_TRACE_UNWINDING(msg, ...)
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#define _LIBUNWIND_TRACE_DWARF(...)
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#else
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern bool logAPIs();
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extern bool logUnwinding();
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extern bool logDWARF();
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#ifdef __cplusplus
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}
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#endif
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#define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__)
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#define _LIBUNWIND_TRACE_API(msg, ...) \
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do { \
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if (logAPIs()) \
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_LIBUNWIND_LOG(msg, __VA_ARGS__); \
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} while (0)
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#define _LIBUNWIND_TRACING_UNWINDING logUnwinding()
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#define _LIBUNWIND_TRACING_DWARF logDWARF()
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#define _LIBUNWIND_TRACE_UNWINDING(msg, ...) \
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do { \
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if (logUnwinding()) \
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_LIBUNWIND_LOG(msg, __VA_ARGS__); \
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} while (0)
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#define _LIBUNWIND_TRACE_DWARF(...) \
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do { \
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if (logDWARF()) \
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fprintf(stderr, __VA_ARGS__); \
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} while (0)
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#endif
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#ifdef __cplusplus
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// Used to fit UnwindCursor and Registers_xxx types against unw_context_t /
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// unw_cursor_t sized memory blocks.
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#if defined(_LIBUNWIND_IS_NATIVE_ONLY)
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# define COMP_OP ==
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#else
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# define COMP_OP <=
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#endif
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template <typename _Type, typename _Mem>
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struct check_fit {
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template <typename T>
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struct blk_count {
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static const size_t count =
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(sizeof(T) + sizeof(uint64_t) - 1) / sizeof(uint64_t);
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};
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static const bool does_fit =
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(blk_count<_Type>::count COMP_OP blk_count<_Mem>::count);
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};
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#undef COMP_OP
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#endif // __cplusplus
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#endif // LIBUNWIND_CONFIG_H
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