diff --git a/src/ia64/Ginit-ia64.c b/src/ia64/Ginit-ia64.c deleted file mode 100644 index a1034772..00000000 --- a/src/ia64/Ginit-ia64.c +++ /dev/null @@ -1,539 +0,0 @@ -/* libunwind - a platform-independent unwind library - Copyright (C) 2001-2004 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. */ - -#include -#include - -#include "unwind_i.h" - -#ifdef HAVE_SYS_UC_ACCESS_H -# include -#endif - -#if UNW_DEBUG - -HIDDEN const char * -ia64_strloc (ia64_loc_t loc) -{ - static char buf[128]; - - if (IA64_IS_NULL_LOC (loc)) - return ""; - - buf[0] = '\0'; - - if (IA64_IS_MEMSTK_NAT (loc)) - strcat (buf, "memstk_nat("); - if (IA64_IS_UC_LOC (loc)) - strcat (buf, "uc("); - if (IA64_IS_FP_LOC (loc)) - strcat (buf, "fp("); - - if (IA64_IS_REG_LOC (loc)) - sprintf (buf + strlen (buf), "%s", unw_regname (IA64_GET_REG (loc))); - else - sprintf (buf + strlen (buf), "0x%llx", - (unsigned long long) IA64_GET_ADDR (loc)); - - if (IA64_IS_FP_LOC (loc)) - strcat (buf, ")"); - if (IA64_IS_UC_LOC (loc)) - strcat (buf, ")"); - if (IA64_IS_MEMSTK_NAT (loc)) - strcat (buf, ")"); - - return buf; -} - -#endif /* UNW_DEBUG */ - -#ifdef UNW_REMOTE_ONLY - -/* unw_local_addr_space is a NULL pointer in this case. */ -PROTECTED unw_addr_space_t unw_local_addr_space; - -#else /* !UNW_REMOTE_ONLY */ - -static struct unw_addr_space local_addr_space; - -PROTECTED unw_addr_space_t unw_local_addr_space = &local_addr_space; - -#ifdef HAVE_SYS_UC_ACCESS_H - -#else /* !HAVE_SYS_UC_ACCESS_H */ - -HIDDEN void * -tdep_uc_addr (ucontext_t *uc, int reg, uint8_t *nat_bitnr) -{ - return inlined_uc_addr (uc, reg, nat_bitnr); -} - -#endif /* !HAVE_SYS_UC_ACCESS_H */ - -static void -put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) -{ - /* it's a no-op */ -} - -static int -get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, - void *arg) -{ - *dyn_info_list_addr = _U_dyn_info_list_addr (); - return 0; -} - -static int -access_mem (unw_addr_space_t as, unw_word_t addr, unw_word_t *val, int write, - void *arg) -{ - if (write) - { - Debug (12, "mem[%lx] <- %lx\n", addr, *val); - *(unw_word_t *) addr = *val; - } - else - { - *val = *(unw_word_t *) addr; - Debug (12, "mem[%lx] -> %lx\n", addr, *val); - } - return 0; -} - -#ifdef HAVE_SYS_UC_ACCESS_H - -#define SYSCALL_CFM_SAVE_REG 11 /* on a syscall, ar.pfs is saved in r11 */ -#define REASON_SYSCALL 0 - -static int -access_reg (unw_addr_space_t as, unw_regnum_t reg, unw_word_t *val, int write, - void *arg) -{ - ucontext_t *uc = arg; - unsigned int nat, mask; - uint64_t value; - uint16_t reason; - int ret; - - __uc_get_reason (uc, &reason); - - switch (reg) - { - case UNW_IA64_GR ... UNW_IA64_GR + 31: - if ((ret = __uc_get_grs (uc, (reg - UNW_IA64_GR), 1, &value, &nat))) - break; - - if (write) - ret = __uc_set_grs (uc, (reg - UNW_IA64_GR), 1, val, nat); - else - *val = value; - break; - - case UNW_IA64_NAT ... UNW_IA64_NAT + 31: - if ((ret = __uc_get_grs (uc, (reg - UNW_IA64_GR), 1, &value, &nat))) - break; - - mask = 1 << (reg - UNW_IA64_GR); - - if (write) - { - if (*val) - nat |= mask; - else - nat &= ~mask; - ret = __uc_set_grs (uc, (reg - UNW_IA64_GR), 1, &value, nat); - } - else - *val = (nat & mask) != 0; - break; - - case UNW_IA64_AR ... UNW_IA64_AR + 127: - if (reg == UNW_IA64_AR_BSP) - { - if (write) - ret = __uc_set_ar (uc, (reg - UNW_IA64_AR), *val); - else - ret = __uc_get_ar (uc, (reg - UNW_IA64_AR), val); - } - else if (reg == UNW_IA64_AR_PFS && reason == REASON_SYSCALL) - { - /* As of HP-UX 11.22, getcontext() does not have unwind info - and because of that, we need to hack thins manually here. - Hopefully, this is OK because the HP-UX kernel also needs - to know where AR.PFS has been saved, so the use of - register r11 for this purpose is pretty much nailed - down. */ - if (write) - ret = __uc_set_grs (uc, SYSCALL_CFM_SAVE_REG, 1, val, 0); - else - ret = __uc_get_grs (uc, SYSCALL_CFM_SAVE_REG, 1, val, &nat); - } - else - { - if (write) - ret = __uc_set_ar (uc, (reg - UNW_IA64_AR), *val); - else - ret = __uc_get_ar (uc, (reg - UNW_IA64_AR), val); - } - break; - - case UNW_IA64_BR ... UNW_IA64_BR + 7: - if (write) - ret = __uc_set_brs (uc, (reg - UNW_IA64_BR), 1, val); - else - ret = __uc_get_brs (uc, (reg - UNW_IA64_BR), 1, val); - break; - - case UNW_IA64_PR: - if (write) - ret = __uc_set_prs (uc, *val); - else - ret = __uc_get_prs (uc, val); - break; - - case UNW_IA64_IP: - if (write) - ret = __uc_set_ip (uc, *val); - else - ret = __uc_get_ip (uc, val); - break; - - case UNW_IA64_CFM: - if (write) - ret = __uc_set_cfm (uc, *val); - else - ret = __uc_get_cfm (uc, val); - break; - - case UNW_IA64_FR ... UNW_IA64_FR + 127: - default: - ret = EINVAL; - break; - } - - if (ret != 0) - { - Debug (1, "failed to %s %s (ret = %d)\n", - write ? "write" : "read", unw_regname (reg), ret); - return -UNW_EBADREG; - } - - if (write) - Debug (12, "%s <- %lx\n", unw_regname (reg), *val); - else - Debug (12, "%s -> %lx\n", unw_regname (reg), *val); - return 0; -} - -static int -access_fpreg (unw_addr_space_t as, unw_regnum_t reg, unw_fpreg_t *val, - int write, void *arg) -{ - ucontext_t *uc = arg; - fp_regval_t fp_regval; - int ret; - - switch (reg) - { - case UNW_IA64_FR ... UNW_IA64_FR + 127: - if (write) - { - memcpy (&fp_regval, val, sizeof (fp_regval)); - ret = __uc_set_frs (uc, (reg - UNW_IA64_FR), 1, &fp_regval); - } - else - { - ret = __uc_get_frs (uc, (reg - UNW_IA64_FR), 1, &fp_regval); - memcpy (val, &fp_regval, sizeof (*val)); - } - break; - - default: - ret = EINVAL; - break; - } - if (ret != 0) - return -UNW_EBADREG; - - return 0; -} - -#else /* !HAVE_SYS_UC_ACCESS_H */ - -static int -access_reg (unw_addr_space_t as, unw_regnum_t reg, unw_word_t *val, int write, - void *arg) -{ - unw_word_t *addr, mask; - ucontext_t *uc = arg; - - if (reg >= UNW_IA64_NAT + 4 && reg <= UNW_IA64_NAT + 7) - { - mask = ((unw_word_t) 1) << (reg - UNW_IA64_NAT); - if (write) - { - if (*val) - uc->uc_mcontext.sc_nat |= mask; - else - uc->uc_mcontext.sc_nat &= ~mask; - } - else - *val = (uc->uc_mcontext.sc_nat & mask) != 0; - - if (write) - Debug (12, "%s <- %lx\n", unw_regname (reg), *val); - else - Debug (12, "%s -> %lx\n", unw_regname (reg), *val); - return 0; - } - - addr = tdep_uc_addr (uc, reg, NULL); - if (!addr) - goto badreg; - - if (write) - { - if (ia64_read_only_reg (addr)) - { - Debug (16, "attempt to write read-only register\n"); - return -UNW_EREADONLYREG; - } - *addr = *val; - Debug (12, "%s <- %lx\n", unw_regname (reg), *val); - } - else - { - *val = *(unw_word_t *) addr; - Debug (12, "%s -> %lx\n", unw_regname (reg), *val); - } - return 0; - - badreg: - Debug (1, "bad register number %u\n", reg); - return -UNW_EBADREG; -} - -static int -access_fpreg (unw_addr_space_t as, unw_regnum_t reg, unw_fpreg_t *val, - int write, void *arg) -{ - ucontext_t *uc = arg; - unw_fpreg_t *addr; - - if (reg < UNW_IA64_FR || reg >= UNW_IA64_FR + 128) - goto badreg; - - addr = tdep_uc_addr (uc, reg, NULL); - if (!addr) - goto badreg; - - if (write) - { - if (ia64_read_only_reg (addr)) - { - Debug (16, "attempt to write read-only register\n"); - return -UNW_EREADONLYREG; - } - *addr = *val; - Debug (12, "%s <- %016lx.%016lx\n", - unw_regname (reg), val->raw.bits[1], val->raw.bits[0]); - } - else - { - *val = *(unw_fpreg_t *) addr; - Debug (12, "%s -> %016lx.%016lx\n", - unw_regname (reg), val->raw.bits[1], val->raw.bits[0]); - } - return 0; - - badreg: - Debug (1, "bad register number %u\n", reg); - /* attempt to access a non-preserved register */ - return -UNW_EBADREG; -} - -#endif /* !HAVE_SYS_UC_ACCESS_H */ - -static int -get_static_proc_name (unw_addr_space_t as, unw_word_t ip, - char *buf, size_t buf_len, unw_word_t *offp, - void *arg) -{ - return _Uelf64_get_proc_name (getpid (), ip, buf, buf_len, offp); -} - -HIDDEN void -ia64_local_addr_space_init (void) -{ - memset (&local_addr_space, 0, sizeof (local_addr_space)); - local_addr_space.big_endian = (__BYTE_ORDER == __BIG_ENDIAN); -#if defined(__linux) - local_addr_space.abi = ABI_LINUX; -#elif defined(__hpux) - local_addr_space.abi = ABI_HPUX; -#endif - local_addr_space.caching_policy = UNW_CACHE_GLOBAL; - local_addr_space.acc.find_proc_info = tdep_find_proc_info; - local_addr_space.acc.put_unwind_info = put_unwind_info; - local_addr_space.acc.get_dyn_info_list_addr = get_dyn_info_list_addr; - local_addr_space.acc.access_mem = access_mem; - local_addr_space.acc.access_reg = access_reg; - local_addr_space.acc.access_fpreg = access_fpreg; - local_addr_space.acc.resume = ia64_local_resume; - local_addr_space.acc.get_proc_name = get_static_proc_name; - unw_flush_cache (&local_addr_space, 0, 0); -} - -#endif /* !UNW_REMOTE_ONLY */ - -#ifndef UNW_LOCAL_ONLY - -HIDDEN int -ia64_uc_access_reg (struct cursor *c, ia64_loc_t loc, unw_word_t *valp, - int write) -{ -#ifdef HAVE_SYS_UC_ACCESS_H - unw_word_t uc_addr = IA64_GET_AUX_ADDR (loc); - ucontext_t *ucp; - int ret; - - Debug (16, "%s location %s\n", - write ? "writing" : "reading", ia64_strloc (loc)); - - if (c->as == unw_local_addr_space) - ucp = (ucontext_t *) uc_addr; - else - { - unw_word_t *dst, src; - - /* Need to copy-in ucontext_t first. */ - ucp = alloca (sizeof (ucontext_t)); - if (!ucp) - return -UNW_ENOMEM; - - /* For now, there is no non-HP-UX implementation of the - uc_access(3) interface. Because of that, we cannot, e.g., - unwind an HP-UX program from a Linux program. Should that - become possible at some point in the future, the - copy-in/copy-out needs to be adjusted to do byte-swapping if - necessary. */ - assert (c->as->big_endian == (__BYTE_ORDER == __BIG_ENDIAN)); - - dst = (unw_word_t *) ucp; - for (src = uc_addr; src < uc_addr + sizeof (ucontext_t); src += 8) - if ((ret = (*c->as->acc.access_mem) (c->as, src, dst++, 0, c->as_arg)) - < 0) - return ret; - } - - if (IA64_IS_REG_LOC (loc)) - ret = access_reg (unw_local_addr_space, IA64_GET_REG (loc), valp, write, - ucp); - else - { - /* Must be an access to the RSE backing store in ucontext_t. */ - unw_word_t addr = IA64_GET_ADDR (loc); - - if (write) - ret = __uc_set_rsebs (ucp, (uint64_t *) addr, 1, valp); - else - ret = __uc_get_rsebs (ucp, (uint64_t *) addr, 1, valp); - if (ret != 0) - ret = -UNW_EBADREG; - } - if (ret < 0) - return ret; - - if (write && c->as != unw_local_addr_space) - { - /* need to copy-out ucontext_t: */ - unw_word_t dst, *src = (unw_word_t *) ucp; - for (dst = uc_addr; dst < uc_addr + sizeof (ucontext_t); dst += 8) - if ((ret = (*c->as->acc.access_mem) (c->as, dst, src++, 1, c->as_arg)) - < 0) - return ret; - } - return 0; -#else /* !HAVE_SYS_UC_ACCESS_H */ - return -UNW_EINVAL; -#endif /* !HAVE_SYS_UC_ACCESS_H */ -} - -HIDDEN int -ia64_uc_access_fpreg (struct cursor *c, ia64_loc_t loc, unw_fpreg_t *valp, - int write) -{ -#ifdef HAVE_SYS_UC_ACCESS_H - unw_word_t uc_addr = IA64_GET_AUX_ADDR (loc); - ucontext_t *ucp; - int ret; - - if (c->as == unw_local_addr_space) - ucp = (ucontext_t *) uc_addr; - else - { - unw_word_t *dst, src; - - /* Need to copy-in ucontext_t first. */ - ucp = alloca (sizeof (ucontext_t)); - if (!ucp) - return -UNW_ENOMEM; - - /* For now, there is no non-HP-UX implementation of the - uc_access(3) interface. Because of that, we cannot, e.g., - unwind an HP-UX program from a Linux program. Should that - become possible at some point in the future, the - copy-in/copy-out needs to be adjusted to do byte-swapping if - necessary. */ - assert (c->as->big_endian == (__BYTE_ORDER == __BIG_ENDIAN)); - - dst = (unw_word_t *) ucp; - for (src = uc_addr; src < uc_addr + sizeof (ucontext_t); src += 8) - if ((ret = (*c->as->acc.access_mem) (c->as, src, dst++, 0, c->as_arg)) - < 0) - return ret; - } - - if ((ret = access_fpreg (unw_local_addr_space, IA64_GET_REG (loc), valp, - write, ucp)) < 0) - return ret; - - if (write && c->as != unw_local_addr_space) - { - /* need to copy-out ucontext_t: */ - unw_word_t dst, *src = (unw_word_t *) ucp; - for (dst = uc_addr; dst < uc_addr + sizeof (ucontext_t); dst += 8) - if ((ret = (*c->as->acc.access_mem) (c->as, dst, src++, 1, c->as_arg)) - < 0) - return ret; - } - return 0; -#else /* !HAVE_SYS_UC_ACCESS_H */ - return -UNW_EINVAL; -#endif /* !HAVE_SYS_UC_ACCESS_H */ -} - -#endif /* UNW_LOCAL_ONLY */