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| /* libunwind - a platform-independent unwind library
| Copyright (c) 2003, 2005 Hewlett-Packard Development Company, L.P.
| Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
| Modified for x86_64 by Max Asbock <masbock@us.ibm.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 "config.h"
| #include "unwind_i.h"
| #include "dwarf_i.h"
|
| HIDDEN define_lock (x86_64_lock);
| HIDDEN int tdep_init_done;
|
| /* See comments for svr4_dbx_register_map[] in gcc/config/i386/i386.c. */
|
| HIDDEN const uint8_t dwarf_to_unw_regnum_map[DWARF_NUM_PRESERVED_REGS] =
| {
| UNW_X86_64_RAX,
| UNW_X86_64_RDX,
| UNW_X86_64_RCX,
| UNW_X86_64_RBX,
| UNW_X86_64_RSI,
| UNW_X86_64_RDI,
| UNW_X86_64_RBP,
| UNW_X86_64_RSP,
| UNW_X86_64_R8,
| UNW_X86_64_R9,
| UNW_X86_64_R10,
| UNW_X86_64_R11,
| UNW_X86_64_R12,
| UNW_X86_64_R13,
| UNW_X86_64_R14,
| UNW_X86_64_R15,
| UNW_X86_64_RIP,
| #ifdef CONFIG_MSABI_SUPPORT
| UNW_X86_64_XMM0,
| UNW_X86_64_XMM1,
| UNW_X86_64_XMM2,
| UNW_X86_64_XMM3,
| UNW_X86_64_XMM4,
| UNW_X86_64_XMM5,
| UNW_X86_64_XMM6,
| UNW_X86_64_XMM7,
| UNW_X86_64_XMM8,
| UNW_X86_64_XMM9,
| UNW_X86_64_XMM10,
| UNW_X86_64_XMM11,
| UNW_X86_64_XMM12,
| UNW_X86_64_XMM13,
| UNW_X86_64_XMM14,
| UNW_X86_64_XMM15
| #endif
| };
|
| HIDDEN void
| tdep_init (void)
| {
| intrmask_t saved_mask;
|
| sigfillset (&unwi_full_mask);
|
| lock_acquire (&x86_64_lock, saved_mask);
| {
| if (tdep_init_done)
| /* another thread else beat us to it... */
| goto out;
|
| mi_init ();
|
| dwarf_init ();
|
| tdep_init_mem_validate ();
|
| #ifndef UNW_REMOTE_ONLY
| x86_64_local_addr_space_init ();
| #endif
| tdep_init_done = 1; /* signal that we're initialized... */
| }
| out:
| lock_release (&x86_64_lock, saved_mask);
| }
|
|
