137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang/* libunwind - a platform-independent unwind library 237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang Copyright (C) 2002-2005 Hewlett-Packard Co 337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang Contributed by David Mosberger-Tang <davidm@hpl.hp.com> 437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangThis file is part of libunwind. 637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangPermission is hereby granted, free of charge, to any person obtaining 837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tanga copy of this software and associated documentation files (the 937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang"Software"), to deal in the Software without restriction, including 1037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangwithout limitation the rights to use, copy, modify, merge, publish, 1137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdistribute, sublicense, and/or sell copies of the Software, and to 1237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangpermit persons to whom the Software is furnished to do so, subject to 1337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangthe following conditions: 1437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 1537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangThe above copyright notice and this permission notice shall be 1637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangincluded in all copies or substantial portions of the Software. 1737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 1837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangTHE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 1937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangEXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 2037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 2137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangNONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 2237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangLIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 2337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangOF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 2437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-TangWITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 2537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 2637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#ifndef X86_LIBUNWIND_I_H 2737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define X86_LIBUNWIND_I_H 2837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 2937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang/* Target-dependent definitions that are internal to libunwind but need 3037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang to be shared with target-independent code. */ 3137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 3237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#include <stdlib.h> 3337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#include <libunwind.h> 3437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 3537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#include "elf32.h" 367d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris/* ANDROID support update. */ 377d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris#include "map_info.h" 387d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris/* End of ANDROID update. */ 391fdb08e5fc427b54b54214e3b3fbdda73d369f4dDavid Mosberger-Tang#include "mempool.h" 4037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#include "dwarf.h" 4137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 425f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuuratypedef struct 435f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura { 445f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura /* no x86-specific fast trace */ 455f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura } 465f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuuraunw_tdep_frame_t; 475f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura 4837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstruct unw_addr_space 4937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang { 5037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang struct unw_accessors acc; 5137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_caching_policy_t caching_policy; 5237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#ifdef HAVE_ATOMIC_OPS_H 5337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang AO_t cache_generation; 5437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#else 5537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang uint32_t cache_generation; 5637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#endif 5737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_word_t dyn_generation; /* see dyn-common.h */ 5837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */ 59036cbfa020895c63b17081b5ad3cccf1dd3601daArun Sharma struct dwarf_rs_cache global_cache; 603842dac7333e42aa44531eda34ba55200b99ccf8Daniel Jacobowitz struct unw_debug_frame_list *debug_frames; 617d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris /* ANDROID support update. */ 627d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris#if defined(__linux__) 637d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris struct map_info *map_list; 647d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris#endif 657d46a21e0a2cb561e4cad57b101a7137e01023dcChristopher Ferris /* End of ANDROID update. */ 6637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang }; 6737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 6837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstruct cursor 6937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang { 7037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang struct dwarf_cursor dwarf; /* must be first */ 7137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 7237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang /* Format of sigcontext structure and address at which it is 7337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang stored: */ 7437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang enum 7537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang { 7637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang X86_SCF_NONE, /* no signal frame encountered */ 77e9cd30040e2794ee586ff853b360b47881824fdaKonstantin Belousov X86_SCF_LINUX_SIGFRAME, /* Linux x86 sigcontext */ 78e9cd30040e2794ee586ff853b360b47881824fdaKonstantin Belousov X86_SCF_LINUX_RT_SIGFRAME, /* POSIX ucontext_t */ 79e9cd30040e2794ee586ff853b360b47881824fdaKonstantin Belousov X86_SCF_FREEBSD_SIGFRAME, /* FreeBSD x86 sigcontext */ 80e9cd30040e2794ee586ff853b360b47881824fdaKonstantin Belousov X86_SCF_FREEBSD_SIGFRAME4, /* FreeBSD 4.x x86 sigcontext */ 81e9cd30040e2794ee586ff853b360b47881824fdaKonstantin Belousov X86_SCF_FREEBSD_OSIGFRAME, /* FreeBSD pre-4.x x86 sigcontext */ 82e9cd30040e2794ee586ff853b360b47881824fdaKonstantin Belousov X86_SCF_FREEBSD_SYSCALL, /* FreeBSD x86 syscall */ 8337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang } 8437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang sigcontext_format; 8537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_word_t sigcontext_addr; 86ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma int validate; 87ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma ucontext_t *uc; 8837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang }; 8937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 90ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharmastatic inline ucontext_t * 91ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharmadwarf_get_uc(const struct dwarf_cursor *cursor) 92ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma{ 93ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma const struct cursor *c = (struct cursor *) cursor->as_arg; 94ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma return c->uc; 95ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma} 96ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma 9737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define DWARF_GET_LOC(l) ((l).val) 9837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 9937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#ifdef UNW_LOCAL_ONLY 10037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_NULL_LOC DWARF_LOC (0, 0) 10137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0) 10237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) }) 10337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_IS_REG_LOC(l) 0 10437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) \ 105ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma tdep_uc_addr(dwarf_get_uc(c), (r)), 0)) 10637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) 10737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) \ 108ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma tdep_uc_addr(dwarf_get_uc(c), (r)), 0)) 10937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 11037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 11137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) 11237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 11337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (!DWARF_GET_LOC (loc)) 11437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -1; 11537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang *val = *(unw_fpreg_t *) DWARF_GET_LOC (loc); 11637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return 0; 11737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 11837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 11937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 12037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) 12137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 12237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (!DWARF_GET_LOC (loc)) 12337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -1; 12437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang *(unw_fpreg_t *) DWARF_GET_LOC (loc) = val; 12537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return 0; 12637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 12737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 12837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 12937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) 13037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 13137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (!DWARF_GET_LOC (loc)) 13237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -1; 133ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val, 134ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma 0, c->as_arg); 13537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 13637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 13737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 13837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) 13937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 14037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (!DWARF_GET_LOC (loc)) 14137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -1; 142ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val, 143ff0ae70cc3c3c1498724deed519cd18dde6c1e80Arun Sharma 1, c->as_arg); 14437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 14537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 14637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#else /* !UNW_LOCAL_ONLY */ 14737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_LOC_TYPE_FP (1 << 0) 14837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_LOC_TYPE_REG (1 << 1) 14937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_NULL_LOC DWARF_LOC (0, 0) 15037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_IS_NULL_LOC(l) \ 15137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; }) 15237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) }) 15337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0) 15437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0) 15537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG) 15637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) 15737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \ 15837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang | DWARF_LOC_TYPE_FP)) 15937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 16037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 16137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) 16237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 16337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang char *valp = (char *) &val; 16437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_word_t addr; 16537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang int ret; 16637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 16737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_NULL_LOC (loc)) 16837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -UNW_EBADREG; 16937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 17037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_REG_LOC (loc)) 17137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc), 17237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang val, 0, c->as_arg); 17337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 17437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang addr = DWARF_GET_LOC (loc); 17537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp, 17637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 0, c->as_arg)) < 0) 17737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return ret; 17837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 17937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 0, 18037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang c->as_arg); 18137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 18237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 18337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 18437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) 18537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 18637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang char *valp = (char *) &val; 18737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_word_t addr; 18837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang int ret; 18937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 19037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_NULL_LOC (loc)) 19137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -UNW_EBADREG; 19237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 19337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_REG_LOC (loc)) 19437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_fpreg) (c->as, DWARF_GET_LOC (loc), 19537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang &val, 1, c->as_arg); 19637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 19737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang addr = DWARF_GET_LOC (loc); 19837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if ((ret = (*c->as->acc.access_mem) (c->as, addr + 0, (unw_word_t *) valp, 19937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 1, c->as_arg)) < 0) 20037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return ret; 20137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 20237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_mem) (c->as, addr + 4, (unw_word_t *) valp + 1, 20337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 1, c->as_arg); 20437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 20537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 20637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 20737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) 20837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 20937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_NULL_LOC (loc)) 21037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -UNW_EBADREG; 21137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 21237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang /* If a code-generator were to save a value of type unw_word_t in a 21337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang floating-point register, we would have to support this case. I 21437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang suppose it could happen with MMX registers, but does it really 21537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang happen? */ 21637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang assert (!DWARF_IS_FP_LOC (loc)); 21737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 21837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_REG_LOC (loc)) 21937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val, 22037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 0, c->as_arg); 22137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang else 22237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val, 22337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 0, c->as_arg); 22437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 22537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 22637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangstatic inline int 22737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangdwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) 22837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang{ 22937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_NULL_LOC (loc)) 23037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return -UNW_EBADREG; 23137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 23237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang /* If a code-generator were to save a value of type unw_word_t in a 23337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang floating-point register, we would have to support this case. I 23437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang suppose it could happen with MMX registers, but does it really 23537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang happen? */ 23637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang assert (!DWARF_IS_FP_LOC (loc)); 23737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 23837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang if (DWARF_IS_REG_LOC (loc)) 23937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val, 24037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 1, c->as_arg); 24137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang else 24237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val, 24337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 1, c->as_arg); 24437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang} 24537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 24637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#endif /* !UNW_LOCAL_ONLY */ 24737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 248e2962af9d31266761700b431da894421c0d757ecArun Sharma#define tdep_getcontext_trace unw_getcontext 2495d0f376b08126b51a001d7cdfba1ec4e0d644f54Tommi Rantala#define tdep_init_done UNW_OBJ(init_done) 25037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_init UNW_OBJ(init) 25137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang/* Platforms that support UNW_INFO_FORMAT_TABLE need to define 25237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang tdep_search_unwind_table. */ 25337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_search_unwind_table dwarf_search_unwind_table 254d93d96ad833390519ea68a2df22dd55dd26a3214Martin Milata#define tdep_find_unwind_table dwarf_find_unwind_table 25537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_uc_addr UNW_ARCH_OBJ(uc_addr) 25637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image) 25737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_access_reg UNW_OBJ(access_reg) 25837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_access_fpreg UNW_OBJ(access_fpreg) 259dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_fetch_frame(c,ip,n) do {} while(0) 260dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_cache_frame(c,rs) do {} while(0) 261dac2d001afb1fa7040ca7d8ae57032f684d7023eLassi Tuura#define tdep_reuse_frame(c,rs) do {} while(0) 2629e98f15e9aee12e67cd5956d06ccb559f6a06213Lassi Tuura#define tdep_stash_frame(c,rs) do {} while(0) 2635f38f35d5d6c78aafa6da20845d9ceff74af00f8Lassi Tuura#define tdep_trace(cur,addr,n) (-UNW_ENOINFO) 26437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 26537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#ifdef UNW_LOCAL_ONLY 26637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define tdep_find_proc_info(c,ip,n) \ 26737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang dwarf_find_proc_info((c)->as, (ip), &(c)->pi, (n), \ 26837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang (c)->as_arg) 26937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define tdep_put_unwind_info(as,pi,arg) \ 27037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang dwarf_put_unwind_info((as), (pi), (arg)) 27137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#else 27237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define tdep_find_proc_info(c,ip,n) \ 27337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang (*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \ 27437be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang (c)->as_arg) 27537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang# define tdep_put_unwind_info(as,pi,arg) \ 27637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang (*(as)->acc.put_unwind_info)((as), (pi), (arg)) 27737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#endif 27837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 27937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_get_as(c) ((c)->dwarf.as) 28037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_get_as_arg(c) ((c)->dwarf.as_arg) 28137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_get_ip(c) ((c)->dwarf.ip) 28237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#define tdep_big_endian(as) 0 28337be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 2845d0f376b08126b51a001d7cdfba1ec4e0d644f54Tommi Rantalaextern int tdep_init_done; 28537be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 28637be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangextern void tdep_init (void); 28737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangextern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip, 28837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_dyn_info_t *di, unw_proc_info_t *pi, 28937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang int need_unwind_info, void *arg); 29037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangextern void *tdep_uc_addr (ucontext_t *uc, int reg); 29116b95a68caaa7e021209e2cd6a877ae1e558f740Christopher Ferris/* ANDROID support update. */ 292f4a8df5f4f338f1a12c25213227e98b34b42447fChristopher Ferrisextern int tdep_get_elf_image (unw_addr_space_t as, struct elf_image *ei, 293f4a8df5f4f338f1a12c25213227e98b34b42447fChristopher Ferris pid_t pid, unw_word_t ip, 294f4a8df5f4f338f1a12c25213227e98b34b42447fChristopher Ferris unsigned long *segbase, unsigned long *mapoff, 295f4a8df5f4f338f1a12c25213227e98b34b42447fChristopher Ferris char **path); 29616b95a68caaa7e021209e2cd6a877ae1e558f740Christopher Ferris/* End of ANDROID update. */ 29737be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangextern int tdep_access_reg (struct cursor *c, unw_regnum_t reg, 29837be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_word_t *valp, int write); 29937be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tangextern int tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, 30037be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang unw_fpreg_t *valp, int write); 30137be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang 30237be21c01ebe23402d4b5f1391e7a83da34e8c32David Mosberger-Tang#endif /* X86_LIBUNWIND_I_H */ 303