ld64-127.2.tar.gz

[apple/ld64.git] / src / ld / parsers / libunwind / InternalMacros.h

diff --git a/src/ld/parsers/libunwind/InternalMacros.h b/src/ld/parsers/libunwind/InternalMacros.h
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+/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
+ *
+ * Copyright (c) 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+ 
+
+
+#ifndef INTERNAL_MACROS_H
+#define INTERNAL_MACROS_H
+
+#include <assert.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+       extern void __assert_rtn(const char *, const char *, int, const char *) __attribute__((noreturn));
+#ifdef __cplusplus
+}
+#endif
+
+#define UNW_STEP_SUCCESS 1
+#define UNW_STEP_END     0
+
+
+struct v128 { unsigned int vec[4]; };
+
+
+#define EXPORT __attribute__((visibility("default"))) 
+
+#define COMPILE_TIME_ASSERT( expr )    \
+               extern int compile_time_assert_failed[ ( expr ) ? 1 : -1 ] __attribute__( ( unused ) );
+
+#define ABORT(msg) __assert_rtn(__func__, __FILE__, __LINE__, msg) 
+
+#if NDEBUG
+       #define DEBUG_MESSAGE(msg, ...)  
+       #define DEBUG_PRINT_API(msg, ...)
+       #define DEBUG_PRINT_UNWINDING_TEST 0
+       #define DEBUG_PRINT_UNWINDING(msg, ...)
+       #define DEBUG_LOG_NON_ZERO(x) x;
+       #define INITIALIZE_DEBUG_PRINT_API
+       #define INITIALIZE_DEBUG_PRINT_UNWINDING
+#else
+       #define DEBUG_MESSAGE(msg, ...)  fprintf(stderr, "libuwind: " msg, __VA_ARGS__)
+       #ifdef __cplusplus
+               extern "C" {
+       #endif
+               extern  bool logAPIs();
+               extern  bool logUnwinding();
+       #ifdef __cplusplus
+               }
+       #endif
+       #define DEBUG_LOG_NON_ZERO(x) { int _err = x; if ( _err != 0 ) fprintf(stderr, "libuwind: " #x "=%d in %s", _err, __FUNCTION__); }
+       #define DEBUG_PRINT_API(msg, ...) do { if ( logAPIs() ) fprintf(stderr,  msg, __VA_ARGS__); } while(0)
+       #define DEBUG_PRINT_UNWINDING(msg, ...) do { if ( logUnwinding() ) fprintf(stderr,  msg, __VA_ARGS__); } while(0)
+       #define DEBUG_PRINT_UNWINDING_TEST logUnwinding()
+       #define INITIALIZE_DEBUG_PRINT_API bool logAPIs() { static bool log = (getenv("LIBUNWIND_PRINT_APIS") != NULL); return log; }
+       #define INITIALIZE_DEBUG_PRINT_UNWINDING bool logUnwinding() { static bool log = (getenv("LIBUNWIND_PRINT_UNWINDING") != NULL); return log; }
+#endif
+
+
+// note hack for <rdar://problem/6175741>
+// Once libgcc_s.dylib vectors to libSystem, then we can remove the $ld$hide$os10.6$ lines
+#if __ppc__
+       #define NOT_HERE_BEFORE_10_6(sym) \
+               extern const char sym##_tmp3 __asm("$ld$hide$os10.3$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp3 = 0; \
+               extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
+               extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp5 = 0; 
+       #define NEVER_HERE(sym) \
+               extern const char sym##_tmp3 __asm("$ld$hide$os10.3$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp3 = 0; \
+               extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
+               extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp5 = 0; \
+               extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp6 = 0;
+#else
+       #define NOT_HERE_BEFORE_10_6(sym) \
+               extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
+               extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp5 = 0; 
+       #define NEVER_HERE(sym) \
+               extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \
+               extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp5 = 0; \
+               extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym ); __attribute__((visibility("default"))) const char sym##_tmp6 = 0;
+#endif
+
+
+
+#endif // INTERNAL_MACROS_H