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https://github.com/tobast/libunwind-eh_elf.git
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169 lines
6.2 KiB
C
169 lines
6.2 KiB
C
/* libunwind - a platform-independent unwind library
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Copyright (C) 2001-2002 Hewlett-Packard Co
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Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include <stdlib.h>
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#include "unwind_i.h"
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struct ia64_global_unwind_state unw =
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{
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first_time: 1,
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// tables: &unw.kernel_table,
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// lock: SPIN_LOCK_UNLOCKED,
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save_order: {
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IA64_REG_RP, IA64_REG_PFS, IA64_REG_PSP, IA64_REG_PR,
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IA64_REG_UNAT, IA64_REG_LC, IA64_REG_FPSR, IA64_REG_PRI_UNAT_GR
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},
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preg_index: {
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struct_offset (struct ia64_cursor, pri_unat_loc)/8, /* PRI_UNAT_GR */
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struct_offset (struct ia64_cursor, pri_unat_loc)/8, /* PRI_UNAT_MEM */
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struct_offset (struct ia64_cursor, bsp_loc)/8,
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struct_offset (struct ia64_cursor, bspstore_loc)/8,
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struct_offset (struct ia64_cursor, pfs_loc)/8,
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struct_offset (struct ia64_cursor, rnat_loc)/8,
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struct_offset (struct ia64_cursor, psp)/8,
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struct_offset (struct ia64_cursor, ip_loc)/8,
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struct_offset (struct ia64_cursor, r4_loc)/8,
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struct_offset (struct ia64_cursor, r5_loc)/8,
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struct_offset (struct ia64_cursor, r6_loc)/8,
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struct_offset (struct ia64_cursor, r7_loc)/8,
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struct_offset (struct ia64_cursor, nat4_loc)/8,
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struct_offset (struct ia64_cursor, nat5_loc)/8,
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struct_offset (struct ia64_cursor, nat6_loc)/8,
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struct_offset (struct ia64_cursor, nat7_loc)/8,
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struct_offset (struct ia64_cursor, unat_loc)/8,
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struct_offset (struct ia64_cursor, pr_loc)/8,
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struct_offset (struct ia64_cursor, lc_loc)/8,
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struct_offset (struct ia64_cursor, fpsr_loc)/8,
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struct_offset (struct ia64_cursor, b1_loc)/8,
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struct_offset (struct ia64_cursor, b2_loc)/8,
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struct_offset (struct ia64_cursor, b3_loc)/8,
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struct_offset (struct ia64_cursor, b4_loc)/8,
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struct_offset (struct ia64_cursor, b5_loc)/8,
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struct_offset (struct ia64_cursor, f2_loc)/8,
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struct_offset (struct ia64_cursor, f3_loc)/8,
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struct_offset (struct ia64_cursor, f4_loc)/8,
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struct_offset (struct ia64_cursor, f5_loc)/8,
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struct_offset (struct ia64_cursor, fr_loc[16 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[17 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[18 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[19 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[20 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[21 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[22 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[23 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[24 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[25 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[26 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[27 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[28 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[29 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[30 - 16])/8,
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struct_offset (struct ia64_cursor, fr_loc[31 - 16])/8,
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},
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#if IA64_UNW_DEBUG
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debug_level: 0,
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preg_name: {
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"pri_unat_gr", "pri_unat_mem", "bsp", "bspstore", "ar.pfs", "ar.rnat",
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"psp", "rp",
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"r4", "r5", "r6", "r7",
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"ar.unat", "pr", "ar.lc", "ar.fpsr",
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"b1", "b2", "b3", "b4", "b5",
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"f2", "f3", "f4", "f5",
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"f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23",
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"f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"
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}
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#endif
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};
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void
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ia64_init (void)
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{
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extern void unw_hash_index_t_is_too_narrow (void);
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extern void unw_cursor_t_is_too_small (void);
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uint8_t f1_bytes[16] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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uint8_t nat_val_bytes[16] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xfe,
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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uint8_t int_val_bytes[16] = {
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0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xfe,
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0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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uint8_t *lep, *bep;
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long i;
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#if IA64_UNW_DEBUG
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{
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const char *str = getenv ("UNW_DEBUG_LEVEL");
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if (str)
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unw.debug_level = atoi (str);
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}
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#endif
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mempool_init (&unw.unwind_table_pool, sizeof (struct ia64_unwind_table), 0);
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mempool_init (&unw.state_record_pool, sizeof (struct ia64_state_record), 0);
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mempool_init (&unw.labeled_state_pool,
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sizeof (struct ia64_labeled_state), 0);
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unw.f0.raw.bits[0] = 0;
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unw.f0.raw.bits[1] = 0;
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lep = (uint8_t *) &unw.f1_le + 16;
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bep = (uint8_t *) &unw.f1_be;
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for (i = 0; i < 16; ++i)
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{
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*--lep = f1_bytes[i];
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*bep++ = f1_bytes[i];
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}
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lep = (uint8_t *) &unw.nat_val_le + 16;
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bep = (uint8_t *) &unw.nat_val_be;
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for (i = 0; i < 16; ++i)
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{
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*--lep = nat_val_bytes[i];
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*bep++ = nat_val_bytes[i];
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}
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lep = (uint8_t *) &unw.int_val_le + 16;
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bep = (uint8_t *) &unw.int_val_be;
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for (i = 0; i < 16; ++i)
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{
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*--lep = int_val_bytes[i];
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*bep++ = int_val_bytes[i];
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}
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if (sizeof (struct ia64_cursor) > sizeof (unw_cursor_t))
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unw_cursor_t_is_too_small();
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if (8*sizeof(unw_hash_index_t) < IA64_LOG_UNW_HASH_SIZE)
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unw_hash_index_t_is_too_narrow();
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ia64_script_cache_init (&unw.global_cache);
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}
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