/* libunwind - a platform-independent unwind library Copyright (C) 2001-2002 Hewlett-Packard Co Contributed by David Mosberger-Tang This file is part of libunwind. libunwind is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. libunwind is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. As a special exception, if you link this library with other files to produce an executable, this library does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. */ #include #include "unwind_i.h" struct ia64_global_unwind_state unw = { first_time: 1, // tables: &unw.kernel_table, // lock: SPIN_LOCK_UNLOCKED, save_order: { IA64_REG_RP, IA64_REG_PFS, IA64_REG_PSP, IA64_REG_PR, IA64_REG_UNAT, IA64_REG_LC, IA64_REG_FPSR, IA64_REG_PRI_UNAT_GR }, preg_index: { struct_offset (struct ia64_cursor, pri_unat_loc)/8, /* PRI_UNAT_GR */ struct_offset (struct ia64_cursor, pri_unat_loc)/8, /* PRI_UNAT_MEM */ struct_offset (struct ia64_cursor, bsp_loc)/8, struct_offset (struct ia64_cursor, bspstore_loc)/8, struct_offset (struct ia64_cursor, pfs_loc)/8, struct_offset (struct ia64_cursor, rnat_loc)/8, struct_offset (struct ia64_cursor, psp)/8, struct_offset (struct ia64_cursor, ip_loc)/8, struct_offset (struct ia64_cursor, r4_loc)/8, struct_offset (struct ia64_cursor, r5_loc)/8, struct_offset (struct ia64_cursor, r6_loc)/8, struct_offset (struct ia64_cursor, r7_loc)/8, struct_offset (struct ia64_cursor, nat4_loc)/8, struct_offset (struct ia64_cursor, nat5_loc)/8, struct_offset (struct ia64_cursor, nat6_loc)/8, struct_offset (struct ia64_cursor, nat7_loc)/8, struct_offset (struct ia64_cursor, unat_loc)/8, struct_offset (struct ia64_cursor, pr_loc)/8, struct_offset (struct ia64_cursor, lc_loc)/8, struct_offset (struct ia64_cursor, fpsr_loc)/8, struct_offset (struct ia64_cursor, b1_loc)/8, struct_offset (struct ia64_cursor, b2_loc)/8, struct_offset (struct ia64_cursor, b3_loc)/8, struct_offset (struct ia64_cursor, b4_loc)/8, struct_offset (struct ia64_cursor, b5_loc)/8, struct_offset (struct ia64_cursor, f2_loc)/8, struct_offset (struct ia64_cursor, f3_loc)/8, struct_offset (struct ia64_cursor, f4_loc)/8, struct_offset (struct ia64_cursor, f5_loc)/8, struct_offset (struct ia64_cursor, fr_loc[16 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[17 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[18 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[19 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[20 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[21 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[22 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[23 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[24 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[25 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[26 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[27 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[28 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[29 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[30 - 16])/8, struct_offset (struct ia64_cursor, fr_loc[31 - 16])/8, }, hash : { [0 ... IA64_UNW_HASH_SIZE - 1] = -1 }, #if IA64_UNW_DEBUG debug_level: 0, preg_name: { "pri_unat_gr", "pri_unat_mem", "bsp", "bspstore", "ar.pfs", "ar.rnat", "psp", "rp", "r4", "r5", "r6", "r7", "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 }; void ia64_init (void) { extern void unw_hash_index_t_is_too_narrow (void); extern void unw_cursor_t_is_too_small (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, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uint8_t int_val_bytes[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uint8_t *lep, *bep; long i; #if IA64_UNW_DEBUG { const char *str = getenv ("UNW_DEBUG_LEVEL"); if (str) unw.debug_level = atoi (str); } #endif mempool_init (&unw.unwind_table_pool, sizeof (struct ia64_unwind_table), 0); mempool_init (&unw.state_record_pool, sizeof (struct ia64_state_record), 0); mempool_init (&unw.labeled_state_pool, sizeof (struct ia64_labeled_state), 0); unw.f0.raw.bits[0] = 0; unw.f0.raw.bits[1] = 0; lep = (uint8_t *) &unw.f1_le + 16; bep = (uint8_t *) &unw.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]; } if (sizeof (struct ia64_cursor) > sizeof (unw_cursor_t)) unw_cursor_t_is_too_small(); if (8*sizeof(unw_hash_index_t) < IA64_LOG_UNW_HASH_SIZE) unw_hash_index_t_is_too_narrow(); for (i = 0; i < IA64_UNW_CACHE_SIZE; ++i) { if (i > 0) unw.cache[i].lru_chain = (i - 1); unw.cache[i].coll_chain = -1; // unw.cache[i].lock = RW_LOCK_UNLOCKED; } unw.lru_head = IA64_UNW_CACHE_SIZE - 1; unw.lru_tail = 0; }