/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2005 Hewlett-Packard Co
Copyright (C) 2007 David Mosberger-Tang
- Contributed by David Mosberger-Tang <dmosberger@gmail.com>
+ Contributed by David Mosberger-Tang <dmosberger@gmail.com>
This file is part of libunwind.
/* Platform-independent libunwind-internal declarations. */
-#include <sys/types.h> /* HP-UX needs this before include of pthread.h */
+#include <sys/types.h> /* HP-UX needs this before include of pthread.h */
#include <assert.h>
#include <libunwind.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
-#include <elf.h>
+
+#if defined(HAVE_ELF_H)
+# include <elf.h>
+#elif defined(HAVE_SYS_ELF_H)
+# include <sys/elf.h>
+#else
+# error Could not locate <elf.h>
+#endif
#if defined(HAVE_ENDIAN_H)
# include <endian.h>
#elif defined(HAVE_SYS_ENDIAN_H)
# include <sys/endian.h>
#else
-# define __LITTLE_ENDIAN 1234
-# define __BIG_ENDIAN 4321
+# define __LITTLE_ENDIAN 1234
+# define __BIG_ENDIAN 4321
# if defined(__hpux)
# define __BYTE_ORDER __BIG_ENDIAN
+# elif defined(__QNX__)
+# if defined(__BIGENDIAN__)
+# define __BYTE_ORDER __BIG_ENDIAN
+# elif defined(__LITTLEENDIAN__)
+# define __BYTE_ORDER __LITTLE_ENDIAN
+# else
+# error Host has unknown byte-order.
+# endif
# else
# error Host has unknown byte-order.
# endif
#endif
+#if defined(HAVE__BUILTIN_UNREACHABLE)
+# define unreachable() __builtin_unreachable()
+#else
+# define unreachable() do { } while (1)
+#endif
+
#ifdef DEBUG
-# define UNW_DEBUG 1
+# define UNW_DEBUG 1
#else
-# define UNW_DEBUG 0
+# define UNW_DEBUG 0
#endif
/* Make it easy to write thread-safe code which may or may not be
#pragma weak pthread_mutex_lock
#pragma weak pthread_mutex_unlock
-#define mutex_init(l) \
- (pthread_mutex_init != NULL ? pthread_mutex_init ((l), NULL) : 0)
-#define mutex_lock(l) \
- (pthread_mutex_lock != NULL ? pthread_mutex_lock (l) : 0)
-#define mutex_unlock(l) \
- (pthread_mutex_unlock != NULL ? pthread_mutex_unlock (l) : 0)
+#define mutex_init(l) \
+ (pthread_mutex_init != NULL ? pthread_mutex_init ((l), NULL) : 0)
+#define mutex_lock(l) \
+ (pthread_mutex_lock != NULL ? pthread_mutex_lock (l) : 0)
+#define mutex_unlock(l) \
+ (pthread_mutex_unlock != NULL ? pthread_mutex_unlock (l) : 0)
#ifdef HAVE_ATOMIC_OPS_H
# include <atomic_ops.h>
u.vp = addr;
return AO_compare_and_swap(u.aop, (AO_t) old, (AO_t) new);
}
-# define fetch_and_add1(_ptr) AO_fetch_and_add1(_ptr)
-# define fetch_and_add(_ptr, value) AO_fetch_and_add(_ptr, value)
+# define fetch_and_add1(_ptr) AO_fetch_and_add1(_ptr)
+# define fetch_and_add(_ptr, value) AO_fetch_and_add(_ptr, value)
/* GCC 3.2.0 on HP-UX crashes on cmpxchg_ptr() */
# if !(defined(__hpux) && __GNUC__ == 3 && __GNUC_MINOR__ == 2)
# define HAVE_CMPXCHG
u.vp = addr;
return __sync_bool_compare_and_swap(u.vlp, (long) old, (long) new);
}
-# define fetch_and_add1(_ptr) __sync_fetch_and_add(_ptr, 1)
-# define fetch_and_add(_ptr, value) __sync_fetch_and_add(_ptr, value)
+# define fetch_and_add1(_ptr) __sync_fetch_and_add(_ptr, 1)
+# define fetch_and_add(_ptr, value) __sync_fetch_and_add(_ptr, value)
# define HAVE_CMPXCHG
# define HAVE_FETCH_AND_ADD
#endif
-#define atomic_read(ptr) (*(ptr))
+#define atomic_read(ptr) (*(ptr))
-#define UNWI_OBJ(fn) UNW_PASTE(UNW_PREFIX,UNW_PASTE(I,fn))
+#define UNWI_OBJ(fn) UNW_PASTE(UNW_PREFIX,UNW_PASTE(I,fn))
#define UNWI_ARCH_OBJ(fn) UNW_PASTE(UNW_PASTE(UNW_PASTE(_UI,UNW_TARGET),_), fn)
#define unwi_full_mask UNWI_ARCH_OBJ(full_mask)
# define SIGPROCMASK(how, new_mask, old_mask) mark_as_used(old_mask)
#endif
+/* Prefer adaptive mutexes if available */
+#ifdef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
+#define UNW_PTHREAD_MUTEX_INITIALIZER PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
+#else
+#define UNW_PTHREAD_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
+#endif
+
#define define_lock(name) \
- pthread_mutex_t name = PTHREAD_MUTEX_INITIALIZER
-#define lock_init(l) mutex_init (l)
-#define lock_acquire(l,m) \
-do { \
- SIGPROCMASK (SIG_SETMASK, &unwi_full_mask, &(m)); \
- mutex_lock (l); \
+ pthread_mutex_t name = UNW_PTHREAD_MUTEX_INITIALIZER
+#define lock_init(l) mutex_init (l)
+#define lock_acquire(l,m) \
+do { \
+ SIGPROCMASK (SIG_SETMASK, &unwi_full_mask, &(m)); \
+ mutex_lock (l); \
} while (0)
-#define lock_release(l,m) \
-do { \
- mutex_unlock (l); \
- SIGPROCMASK (SIG_SETMASK, &(m), NULL); \
+#define lock_release(l,m) \
+do { \
+ mutex_unlock (l); \
+ SIGPROCMASK (SIG_SETMASK, &(m), NULL); \
} while (0)
-#define SOS_MEMORY_SIZE 16384 /* see src/mi/mempool.c */
+#define SOS_MEMORY_SIZE 16384 /* see src/mi/mempool.c */
#ifndef MAP_ANONYMOUS
# define MAP_ANONYMOUS MAP_ANON
#endif
-#define GET_MEMORY(mem, size) \
-do { \
+#define GET_MEMORY(mem, size) \
+do { \
/* Hopefully, mmap() goes straight through to a system call stub... */ \
- mem = mmap (NULL, size, PROT_READ | PROT_WRITE, \
- MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \
- if (mem == MAP_FAILED) \
- mem = NULL; \
+ mem = mmap (NULL, size, PROT_READ | PROT_WRITE, \
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \
+ if (mem == MAP_FAILED) \
+ mem = NULL; \
} while (0)
-#define unwi_find_dynamic_proc_info UNWI_OBJ(find_dynamic_proc_info)
-#define unwi_extract_dynamic_proc_info UNWI_OBJ(extract_dynamic_proc_info)
-#define unwi_put_dynamic_unwind_info UNWI_OBJ(put_dynamic_unwind_info)
-#define unwi_dyn_remote_find_proc_info UNWI_OBJ(dyn_remote_find_proc_info)
-#define unwi_dyn_remote_put_unwind_info UNWI_OBJ(dyn_remote_put_unwind_info)
-#define unwi_dyn_validate_cache UNWI_OBJ(dyn_validate_cache)
+#define unwi_find_dynamic_proc_info UNWI_OBJ(find_dynamic_proc_info)
+#define unwi_extract_dynamic_proc_info UNWI_OBJ(extract_dynamic_proc_info)
+#define unwi_put_dynamic_unwind_info UNWI_OBJ(put_dynamic_unwind_info)
+#define unwi_dyn_remote_find_proc_info UNWI_OBJ(dyn_remote_find_proc_info)
+#define unwi_dyn_remote_put_unwind_info UNWI_OBJ(dyn_remote_put_unwind_info)
+#define unwi_dyn_validate_cache UNWI_OBJ(dyn_validate_cache)
extern int unwi_find_dynamic_proc_info (unw_addr_space_t as,
- unw_word_t ip,
- unw_proc_info_t *pi,
- int need_unwind_info, void *arg);
+ unw_word_t ip,
+ unw_proc_info_t *pi,
+ int need_unwind_info, void *arg);
extern int unwi_extract_dynamic_proc_info (unw_addr_space_t as,
- unw_word_t ip,
- unw_proc_info_t *pi,
- unw_dyn_info_t *di,
- int need_unwind_info,
- void *arg);
+ unw_word_t ip,
+ unw_proc_info_t *pi,
+ unw_dyn_info_t *di,
+ int need_unwind_info,
+ void *arg);
extern void unwi_put_dynamic_unwind_info (unw_addr_space_t as,
- unw_proc_info_t *pi, void *arg);
+ unw_proc_info_t *pi, void *arg);
/* These handle the remote (cross-address-space) case of accessing
dynamic unwind info. */
extern int unwi_dyn_remote_find_proc_info (unw_addr_space_t as,
- unw_word_t ip,
- unw_proc_info_t *pi,
- int need_unwind_info,
- void *arg);
+ unw_word_t ip,
+ unw_proc_info_t *pi,
+ int need_unwind_info,
+ void *arg);
extern void unwi_dyn_remote_put_unwind_info (unw_addr_space_t as,
- unw_proc_info_t *pi,
- void *arg);
+ unw_proc_info_t *pi,
+ void *arg);
extern int unwi_dyn_validate_cache (unw_addr_space_t as, void *arg);
extern unw_dyn_info_list_t _U_dyn_info_list;
extern pthread_mutex_t _U_dyn_info_list_lock;
#if UNW_DEBUG
-#define unwi_debug_level UNWI_ARCH_OBJ(debug_level)
+#define unwi_debug_level UNWI_ARCH_OBJ(debug_level)
extern long unwi_debug_level;
# include <stdio.h>
-# define Debug(level,format...) \
-do { \
- if (unwi_debug_level >= level) \
- { \
- int _n = level; \
- if (_n > 16) \
- _n = 16; \
- fprintf (stderr, "%*c>%s: ", _n, ' ', __FUNCTION__); \
- fprintf (stderr, format); \
- } \
+# define Debug(level,format...) \
+do { \
+ if (unwi_debug_level >= level) \
+ { \
+ int _n = level; \
+ if (_n > 16) \
+ _n = 16; \
+ fprintf (stderr, "%*c>%s: ", _n, ' ', __FUNCTION__); \
+ fprintf (stderr, format); \
+ } \
} while (0)
-# define Dprintf(format...) fprintf (stderr, format)
-# ifdef __GNUC__
-# undef inline
-# define inline UNUSED
-# endif
+# define Dprintf(format...) fprintf (stderr, format)
#else
# define Debug(level,format...)
# define Dprintf(format...)
return write (2, string, strlen (string));
}
-#define mi_init UNWI_ARCH_OBJ(mi_init)
+#define mi_init UNWI_ARCH_OBJ(mi_init)
-extern void mi_init (void); /* machine-independent initializations */
+extern void mi_init (void); /* machine-independent initializations */
extern unw_word_t _U_dyn_info_list_addr (void);
/* This is needed/used by ELF targets only. */
struct elf_image
{
- void *image; /* pointer to mmap'd image */
- size_t size; /* (file-) size of the image */
+ void *image; /* pointer to mmap'd image */
+ size_t size; /* (file-) size of the image */
};
struct elf_dyn_info
/* Define GNU and processor specific values for the Phdr p_type field in case
they aren't defined by <elf.h>. */
#ifndef PT_GNU_EH_FRAME
-# define PT_GNU_EH_FRAME 0x6474e550
+# define PT_GNU_EH_FRAME 0x6474e550
#endif /* !PT_GNU_EH_FRAME */
#ifndef PT_ARM_EXIDX
-# define PT_ARM_EXIDX 0x70000001 /* ARM unwind segment */
+# define PT_ARM_EXIDX 0x70000001 /* ARM unwind segment */
#endif /* !PT_ARM_EXIDX */
#include "tdep/libunwind_i.h"
#ifndef tdep_get_func_addr
-# define tdep_get_func_addr(as,addr,v) (*(v) = addr, 0)
+# define tdep_get_func_addr(as,addr,v) (*(v) = addr, 0)
+#endif
+
+#ifndef DWARF_VAL_LOC
+# define DWARF_IS_VAL_LOC(l) 0
+# define DWARF_VAL_LOC(c,v) DWARF_NULL_LOC
#endif
#define UNW_ALIGN(x,a) (((x)+(a)-1UL)&~((a)-1UL))
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