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- /* libunwind - a platform-independent unwind library
- Copyright (C) 2002-2005 Hewlett-Packard Co
- Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
- 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 <assert.h>
- #include "unwind_i.h"
- HIDDEN struct ia64_global_unwind_state unw =
- {
- .needs_initialization = 1,
- .lock = PTHREAD_MUTEX_INITIALIZER,
- .save_order = {
- IA64_REG_IP, IA64_REG_PFS, IA64_REG_PSP, IA64_REG_PR,
- IA64_REG_UNAT, IA64_REG_LC, IA64_REG_FPSR, IA64_REG_PRI_UNAT_GR
- },
- #if UNW_DEBUG
- .preg_name = {
- "pri_unat_gr", "pri_unat_mem", "psp", "bsp", "bspstore",
- "ar.pfs", "ar.rnat", "rp",
- "r4", "r5", "r6", "r7",
- "nat4", "nat5", "nat6", "nat7",
- "ar.unat", "pr", "ar.lc", "ar.fpsr",
- "b1", "b2", "b3", "b4", "b5",
- "f2", "f3", "f4", "f5",
- "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
- "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"
- }
- #endif
- };
- HIDDEN void
- tdep_init (void)
- {
- uint8_t f1_bytes[16] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
- 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
- uint8_t nat_val_bytes[16] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xfe,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
- uint8_t int_val_bytes[16] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x3e,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
- intrmask_t saved_mask;
- uint8_t *lep, *bep;
- long i;
- sigfillset (&unwi_full_mask);
- lock_acquire (&unw.lock, saved_mask);
- {
- if (!tdep_needs_initialization)
- /* another thread else beat us to it... */
- goto out;
- mi_init ();
- mempool_init (&unw.reg_state_pool, sizeof (struct ia64_reg_state), 0);
- mempool_init (&unw.labeled_state_pool,
- sizeof (struct ia64_labeled_state), 0);
- unw.read_only.r0 = 0;
- unw.read_only.f0.raw.bits[0] = 0;
- unw.read_only.f0.raw.bits[1] = 0;
- lep = (uint8_t *) &unw.read_only.f1_le + 16;
- bep = (uint8_t *) &unw.read_only.f1_be;
- for (i = 0; i < 16; ++i)
- {
- *--lep = f1_bytes[i];
- *bep++ = f1_bytes[i];
- }
- lep = (uint8_t *) &unw.nat_val_le + 16;
- bep = (uint8_t *) &unw.nat_val_be;
- for (i = 0; i < 16; ++i)
- {
- *--lep = nat_val_bytes[i];
- *bep++ = nat_val_bytes[i];
- }
- lep = (uint8_t *) &unw.int_val_le + 16;
- bep = (uint8_t *) &unw.int_val_be;
- for (i = 0; i < 16; ++i)
- {
- *--lep = int_val_bytes[i];
- *bep++ = int_val_bytes[i];
- }
- assert (8*sizeof(unw_hash_index_t) >= IA64_LOG_UNW_HASH_SIZE);
- #ifndef UNW_REMOTE_ONLY
- ia64_local_addr_space_init ();
- #endif
- tdep_needs_initialization = 0; /* signal that we're initialized... */
- }
- out:
- lock_release (&unw.lock, saved_mask);
- }
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