diff --git a/include/internal.h b/include/internal.h index e69de29b..42bef3db 100644 --- a/include/internal.h +++ b/include/internal.h @@ -0,0 +1,207 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2001-2002 Hewlett-Packard Co + Contributed by David Mosberger-Tang + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef internal_h +#define internal_h + +/* Platform-independent libunwind-internal declarations. */ + +#include +#include +#include + +#ifdef __GNUC__ +# define HIDDEN __attribute__((visibility ("hidden"))) +#else +# define HIDDEN +#endif + +#ifdef DEBUG +# define UNW_DEBUG 1 +#endif + +#if UNW_DEBUG +# include +# define debug(level,format...) \ + do { if (tdep_debug_level > level) printf (format); } while (0) +# define dprintf(format...) \ + printf (format) +# ifdef __GNUC__ +# define inline __attribute__ ((unused)) +# endif +#else +# define debug(level,format...) +# define dprintf(format...) +# ifdef __GNUC__ +# else +# define inline /* nothing */ +# endif +#endif + +/* Make it easy to write thread-safe code which may or may not be + linked against libpthread. The macros below can be used + unconditionally and if -lpthread is around, they'll call the + corresponding routines otherwise, they do nothing. */ + +#pragma weak pthread_mutex_lock +#pragma weak pthread_mutex_unlock + +#define mutex_lock(l) (pthread_mutex_lock ? pthread_mutex_lock (l) : 0) +#define mutex_unlock(l) (pthread_mutex_unlock ? pthread_mutex_unlock (l) : 0) + +#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) + +extern int UNWI_OBJ(find_dynamic_proc_info) (unw_addr_space_t as, + unw_word_t ip, + unw_proc_info_t *pi, + int need_unwind_info, void *arg); +extern int UNWI_ARCH_OBJ(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); +extern void UNWI_OBJ(put_dynamic_unwind_info) (unw_addr_space_t as, + unw_proc_info_t *pi, void *arg); +extern int UNWI_ARCH_OBJ(dyn_remote_find_proc_info) (unw_addr_space_t as, + unw_word_t ip, + unw_proc_info_t *pi, + unw_word_t *generation, + int need_unwind_info, + void *arg); +extern void UNWI_ARCH_OBJ(dyn_remote_put_unwind_info) (unw_addr_space_t as, + unw_proc_info_t *pi, + void *arg); +extern int UNWI_ARCH_OBJ(get_proc_name) (unw_addr_space_t as, + unw_word_t ip, int is_local, + char *buf, size_t buf_len, void *arg); + +#define unwi_find_dynamic_proc_info(as,ip,pi,n,arg) \ + UNWI_OBJ(find_dynamic_proc_info)(as, ip, pi, n, arg) + +#define unwi_extract_dynamic_proc_info(as,ip,pi,di,n,arg) \ + UNWI_ARCH_OBJ(extract_dynamic_proc_info)(as, ip, pi, di, n, arg) + +#define unwi_put_dynamic_unwind_info(as,pi,arg) \ + UNWI_OBJ(put_dynamic_unwind_info)(as, pi, arg) + +/* These handle the remote (cross-address-space) case of accessing + dynamic unwind info. */ + +#define unwi_dyn_remote_find_proc_info(as,i,p,g,n,arg) \ + UNWI_ARCH_OBJ(dyn_remote_find_proc_info)(as, i, p, g, n, arg) + +#define unwi_dyn_remote_put_unwind_info(as,p,arg) \ + UNWI_ARCH_OBJ(dyn_remote_put_unwind_info)(as, p, arg) + +#define unwi_get_proc_name(as,ip,l,b,s,arg) \ + UNWI_ARCH_OBJ(get_proc_name)(as, ip, l, b, s, arg) + +extern unw_dyn_info_list_t _U_dyn_info_list; +extern pthread_mutex_t _U_dyn_info_list_lock; + +#define WSIZE (sizeof (unw_word_t)) + +static inline int +fetch8 (unw_addr_space_t as, unw_accessors_t *a, + unw_word_t *addr, int8_t *valp, void *arg) +{ + unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr; + int ret; + + *addr += 1; + + ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg); + +#if __BYTE_ORDER == __LITTLE_ENDIAN + val >>= 8*off; +#else + val >>= 8*(WSIZE - 1 - off); +#endif + *valp = val & 0xff; + return ret; +} + +static inline int +fetch16 (unw_addr_space_t as, unw_accessors_t *a, + unw_word_t *addr, int16_t *valp, void *arg) +{ + unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr; + int ret; + + assert ((off & 0x1) == 0); + + *addr += 2; + + ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg); + +#if __BYTE_ORDER == __LITTLE_ENDIAN + val >>= 8*off; +#else + val >>= 8*(WSIZE - 2 - off); +#endif + *valp = val & 0xffff; + return ret; +} + +static inline int +fetch32 (unw_addr_space_t as, unw_accessors_t *a, + unw_word_t *addr, int32_t *valp, void *arg) +{ + unw_word_t val, aligned_addr = *addr & -WSIZE, off = *addr - aligned_addr; + int ret; + + assert ((off & 0x3) == 0); + + *addr += 4; + + ret = (*a->access_mem) (as, aligned_addr, &val, 0, arg); + +#if __BYTE_ORDER == __LITTLE_ENDIAN + val >>= 8*off; +#else + val >>= 8*(WSIZE - 4 - off); +#endif + *valp = val & 0xffffffff; + return ret; +} + +static inline int +fetchw (unw_addr_space_t as, unw_accessors_t *a, + unw_word_t *addr, unw_word_t *valp, void *arg) +{ + int ret; + + ret = (*a->access_mem) (as, *addr, valp, 0, arg); + *addr += WSIZE; + return ret; +} + +extern void mi_init (void); /* machine-independent initializations */ + +#include + +#endif /* internal_h */