2003-12-20 12:50:00 +01:00
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/* libunwind - a platform-independent unwind library
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Copyright (C) 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 "unwind_i.h"
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static inline int
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common_init (struct cursor *c)
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{
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int ret, i;
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c->dwarf.loc[EAX] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EAX);
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c->dwarf.loc[ECX] = DWARF_REG_LOC (&c->dwarf, UNW_X86_ECX);
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c->dwarf.loc[EDX] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EDX);
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c->dwarf.loc[EBX] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EBX);
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c->dwarf.loc[ESP] = DWARF_REG_LOC (&c->dwarf, UNW_X86_ESP);
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c->dwarf.loc[EBP] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EBP);
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c->dwarf.loc[ESI] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EDI);
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c->dwarf.loc[EDI] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EDI);
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c->dwarf.loc[EIP] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EIP);
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c->dwarf.loc[EFLAGS] = DWARF_REG_LOC (&c->dwarf, UNW_X86_EFLAGS);
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c->dwarf.loc[TRAPNO] = DWARF_REG_LOC (&c->dwarf, UNW_X86_TRAPNO);
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c->dwarf.loc[ST0] = DWARF_REG_LOC (&c->dwarf, UNW_X86_ST0);
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for (i = ST0 + 1; i < DWARF_NUM_PRESERVED_REGS; ++i)
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c->dwarf.loc[i] = DWARF_NULL_LOC;
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ret = dwarf_get (&c->dwarf, c->dwarf.loc[EIP], &c->dwarf.ip);
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if (ret < 0)
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return ret;
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ret = dwarf_get (&c->dwarf, DWARF_REG_LOC (&c->dwarf, UNW_X86_ESP),
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&c->dwarf.cfa);
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if (ret < 0)
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return ret;
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return 0;
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}
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