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- /* libunwind - a platform-independent unwind library
- Copyright (C) 2004 Hewlett-Packard Co
- 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 "unwind_i.h"
- PROTECTED int
- unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc)
- {
- struct cursor *c = (struct cursor *) cursor;
- dwarf_loc_t loc;
- loc = DWARF_NULL_LOC; /* default to "not saved" */
- switch (reg)
- {
- case UNW_X86_64_RBX: loc = c->dwarf.loc[RBX]; break;
- case UNW_X86_64_RSP: loc = c->dwarf.loc[RSP]; break;
- case UNW_X86_64_RBP: loc = c->dwarf.loc[RBP]; break;
- case UNW_X86_64_R12: loc = c->dwarf.loc[R12]; break;
- case UNW_X86_64_R13: loc = c->dwarf.loc[R13]; break;
- case UNW_X86_64_R14: loc = c->dwarf.loc[R14]; break;
- case UNW_X86_64_R15: loc = c->dwarf.loc[R15]; break;
- default:
- break;
- }
- memset (sloc, 0, sizeof (*sloc));
- if (DWARF_IS_NULL_LOC (loc))
- {
- sloc->type = UNW_SLT_NONE;
- return 0;
- }
- #if !defined(UNW_LOCAL_ONLY)
- if (DWARF_IS_REG_LOC (loc))
- {
- sloc->type = UNW_SLT_REG;
- sloc->u.regnum = DWARF_GET_LOC (loc);
- }
- else
- #endif
- {
- sloc->type = UNW_SLT_MEMORY;
- sloc->u.addr = DWARF_GET_LOC (loc);
- }
- return 0;
- }
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