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(unw_resume): Call ia64_make_proc_info() to ensure c->is_signal_frame is valid.

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2002/12/11 12:26:26-08:00 mostang.com!davidm
Rename: src/ia64/Lresume.c -> src/ia64/Gresume.c

(Logical change 1.30)
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mostang.com!davidm 2002-12-12 09:17:41 +00:00
parent b6251b0f41
commit ea24716375
1 changed files with 124 additions and 0 deletions
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src/ia64/Gresume.c Normal file
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/* libunwind - a platform-independent unwind library
Copyright (C) 2001-2002 Hewlett-Packard Co
Contributed by David Mosberger-Tang <davidm@hpl.hp.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 <stdlib.h>
#include "rse.h"
#include "unwind_i.h"
inline int
ia64_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, void *arg)
{
struct ia64_cursor *c = (struct ia64_cursor *) cursor;
unw_fpreg_t fpval;
ucontext_t *uc = arg;
unw_word_t val, sol;
int i, ret;
# define SET_NAT(n) \
do \
{ \
ret = ia64_access_reg (c, UNW_IA64_NAT + (n), &val, 0); \
if (ret < 0) \
return ret; \
if (val) \
uc->uc_mcontext.sc_nat |= (unw_word_t) 1 << n; \
} \
while (0)
# define SET_REG(f, r) \
do \
{ \
ret = ia64_get (c, c->r, &val); \
if (ret < 0) \
return ret; \
uc->uc_mcontext.f = val; \
} \
while (0)
# define SET_FPREG(f, r) \
do \
{ \
ret = ia64_getfp (c, c->r, &fpval); \
if (ret < 0) \
return ret; \
uc->uc_mcontext.f.u.bits[0] = fpval.raw.bits[0]; \
uc->uc_mcontext.f.u.bits[1] = fpval.raw.bits[1]; \
} \
while (0)
/* ensure c->pi is up-to-date: */
if ((ret = ia64_make_proc_info (c)) < 0)
return ret;
SET_REG (sc_ar_pfs, pfs_loc);
SET_REG (sc_br[0], ip_loc);
SET_REG (sc_pr, pr_loc);
SET_REG (sc_ar_rnat, rnat_loc);
SET_REG (sc_ar_lc, lc_loc);
SET_REG (sc_ar_fpsr, fpsr_loc);
SET_REG (sc_gr[4], r4_loc); SET_REG(sc_gr[5], r5_loc);
SET_REG (sc_gr[6], r6_loc); SET_REG(sc_gr[7], r7_loc);
uc->uc_mcontext.sc_nat = 0;
SET_NAT (4); SET_NAT(5);
SET_NAT (6); SET_NAT(7);
SET_REG (sc_br[1], b1_loc);
SET_REG (sc_br[2], b2_loc);
SET_REG (sc_br[3], b3_loc);
SET_REG (sc_br[4], b4_loc);
SET_REG (sc_br[5], b5_loc);
SET_FPREG (sc_fr[2], f2_loc);
SET_FPREG (sc_fr[3], f3_loc);
SET_FPREG (sc_fr[4], f4_loc);
SET_FPREG (sc_fr[5], f5_loc);
for (i = 16; i < 32; ++i)
SET_FPREG (sc_fr[i], fr_loc[i - 16]);
if (c->is_signal_frame)
abort (); /* XXX this needs to be fixed... */
/* Account for the fact that __ia64_install_context() returns via
br.ret, which will decrement bsp by size-of-locals. */
sol = (uc->uc_mcontext.sc_ar_pfs >> 7) & 0x7f;
uc->uc_mcontext.sc_ar_bsp = ia64_rse_skip_regs (c->bsp, sol);
uc->uc_mcontext.sc_flags = 0;
uc->uc_mcontext.sc_gr[1] = c->pi.gp;
uc->uc_mcontext.sc_gr[12] = c->psp;
__ia64_install_context (uc, c->eh_args[0], c->eh_args[1], c->eh_args[2],
c->eh_args[3]);
}
int
unw_resume (unw_cursor_t *cursor)
{
struct ia64_cursor *c = (struct ia64_cursor *) cursor;
#ifdef UNW_LOCAL_ONLY
return ia64_local_resume (c->as, cursor, c->as_arg);
#else
return (*c->as->acc.resume) (c->as, cursor, c->as_arg);
#endif
}