diff --git a/include/tdep-ia64.h b/include/tdep-ia64.h index e69de29b..f52484a0 100644 --- a/include/tdep-ia64.h +++ b/include/tdep-ia64.h @@ -0,0 +1,176 @@ +/* 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 TDEP_IA64_H +#define TDEP_IA64_H + +/* Target-dependent definitions that are internal to libunwind but need + to be shared with target-independent code. */ + +#include +#include + +#include "mempool.h" + +enum ia64_pregnum + { + /* primary unat: */ + IA64_REG_PRI_UNAT_GR, + IA64_REG_PRI_UNAT_MEM, + + /* register stack */ + IA64_REG_BSP, /* register stack pointer */ + IA64_REG_BSPSTORE, + IA64_REG_PFS, /* previous function state */ + IA64_REG_RNAT, + /* memory stack */ + IA64_REG_PSP, /* previous memory stack pointer */ + /* return pointer: */ + IA64_REG_RP, + + /* preserved registers: */ + IA64_REG_R4, IA64_REG_R5, IA64_REG_R6, IA64_REG_R7, + IA64_REG_NAT4, IA64_REG_NAT5, IA64_REG_NAT6, IA64_REG_NAT7, + IA64_REG_UNAT, IA64_REG_PR, IA64_REG_LC, IA64_REG_FPSR, + IA64_REG_B1, IA64_REG_B2, IA64_REG_B3, IA64_REG_B4, IA64_REG_B5, + IA64_REG_F2, IA64_REG_F3, IA64_REG_F4, IA64_REG_F5, + IA64_REG_F16, IA64_REG_F17, IA64_REG_F18, IA64_REG_F19, + IA64_REG_F20, IA64_REG_F21, IA64_REG_F22, IA64_REG_F23, + IA64_REG_F24, IA64_REG_F25, IA64_REG_F26, IA64_REG_F27, + IA64_REG_F28, IA64_REG_F29, IA64_REG_F30, IA64_REG_F31, + IA64_NUM_PREGS + }; + +#include "ia64/script.h" + +struct unw_addr_space + { + struct unw_accessors acc; + int big_endian; + unw_caching_policy_t caching_policy; + uint32_t cache_generation; + unw_word_t dyn_generation; /* see dyn-common.h */ + + struct ia64_script_cache global_cache; + }; + +struct cursor + { + void *as_arg; /* argument to address-space callbacks */ + unw_addr_space_t as; /* reference to per-address-space info */ + + /* IP and predicate cache (these are always equal to the values + stored in ip_loc and pr_loc, respectively). */ + unw_word_t ip; /* instruction pointer value */ + unw_word_t pr; /* current predicate values */ + + /* current frame info: */ + unw_word_t bsp; /* backing store pointer value */ + unw_word_t sp; /* stack pointer value */ + unw_word_t psp; /* previous sp value */ + unw_word_t cfm_loc; /* cfm save location (or NULL) */ + unw_word_t rbs_top; /* address of end of register backing store */ + unw_word_t top_rnat_loc; /* location of final (topmost) RNaT word */ + + /* preserved state: */ + unw_word_t bsp_loc; /* previous bsp save location */ + unw_word_t bspstore_loc; + unw_word_t pfs_loc; + unw_word_t rnat_loc; + unw_word_t ip_loc; + unw_word_t pri_unat_loc; + unw_word_t unat_loc; + unw_word_t pr_loc; + unw_word_t lc_loc; + unw_word_t fpsr_loc; + unw_word_t r4_loc, r5_loc, r6_loc, r7_loc; + unw_word_t nat4_loc, nat5_loc, nat6_loc, nat7_loc; + unw_word_t b1_loc, b2_loc, b3_loc, b4_loc, b5_loc; + unw_word_t f2_loc, f3_loc, f4_loc, f5_loc, fr_loc[16]; + + unw_word_t eh_args[4]; /* exception handler arguments */ + unw_word_t sigcontext_loc; /* location of sigcontext or NULL */ + unw_word_t is_signal_frame; /* is this a signal trampoline frame? */ + + short hint; + short prev_script; + + int pi_valid : 1; /* is proc_info valid? */ + int pi_is_dynamic : 1; /* proc_info found via dynamic proc info? */ + unw_proc_info_t pi; /* info about current procedure */ +}; + +struct ia64_global_unwind_state + { + int needs_initialization; + + /* Table of registers that prologues can save (and order in which + they're saved). */ + const unsigned char save_order[8]; + + /* Maps a preserved register index (preg_index) to corresponding + ucontext_t offset. */ + unsigned short uc_off[sizeof(unw_cursor_t) / 8]; + + /* Index into unw_cursor_t for preserved register i */ + unsigned short preg_index[IA64_NUM_PREGS]; + + unw_fpreg_t f0, f1_le, f1_be, nat_val_le; + unw_fpreg_t nat_val_be, int_val_le, int_val_be; + + struct mempool state_record_pool; + struct mempool labeled_state_pool; + +# if UNW_DEBUG + long debug_level; + const char *preg_name[IA64_NUM_PREGS]; +# endif + }; + +/* Platforms that support UNW_INFO_FORMAT_TABLE need to define + tdep_search_unwind_table. */ +#define tdep_search_unwind_table(a,b,c,d,e,f) \ + UNW_ARCH_OBJ(search_unwind_table) (a,b,c,d,e,f) +#define tdep_find_proc_info(as,ip,pi,n,a) \ + UNW_ARCH_OBJ(find_proc_info) (as,ip,pi,n,a) +#define tdep_put_unwind_info(a,b,c) UNW_ARCH_OBJ(put_unwind_info)(a,b,c) +#define tdep_uc_addr(uc,reg) UNW_ARCH_OBJ(uc_addr)(uc,reg) +#define tdep_debug_level unw.debug_level + +#define unw UNW_ARCH_OBJ(data) + +extern int tdep_search_unwind_table (unw_addr_space_t as, unw_word_t ip, + unw_dyn_info_t *di, unw_proc_info_t *pi, + int need_unwind_info, void *arg); +extern int tdep_find_proc_info (unw_addr_space_t as, unw_word_t ip, + unw_proc_info_t *pi, int need_unwind_info, + void *arg); +extern void tdep_put_unwind_info (unw_addr_space_t as, + unw_proc_info_t *pi, void *arg); +extern void *tdep_uc_addr (ucontext_t *uc, unw_regnum_t regnum); + +extern struct ia64_global_unwind_state unw; + +#endif /* TDEP_IA64_H */