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tcg-hppa: Compute is_write in cpu_signal_handler. 

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Richard Henderson 2010-03-12 15:58:08 +01:00 committed by Aurelien Jarno
parent af92284bec
commit f57040be4c
1 changed files with 31 additions and 7 deletions
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38
cpu-exec.c
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@ -1197,15 +1197,39 @@ int cpu_signal_handler(int host_signum, void *pinfo,
{
struct siginfo *info = pinfo;
struct ucontext *uc = puc;
unsigned long pc;
int is_write;
unsigned long pc = uc->uc_mcontext.sc_iaoq[0];
uint32_t insn = *(uint32_t *)pc;
int is_write = 0;
/* XXX: need kernel patch to get write flag faster. */
switch (insn >> 26) {
case 0x1a: /* STW */
case 0x19: /* STH */
case 0x18: /* STB */
case 0x1b: /* STWM */
is_write = 1;
break;
case 0x09: /* CSTWX, FSTWX, FSTWS */
case 0x0b: /* CSTDX, FSTDX, FSTDS */
/* Distinguish from coprocessor load ... */
is_write = (insn >> 9) & 1;
break;
case 0x03:
switch ((insn >> 6) & 15) {
case 0xa: /* STWS */
case 0x9: /* STHS */
case 0x8: /* STBS */
case 0xe: /* STWAS */
case 0xc: /* STBYS */
is_write = 1;
}
break;
}
pc = uc->uc_mcontext.sc_iaoq[0];
/* FIXME: compute is_write */
is_write = 0;
return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write,
&uc->uc_sigmask, puc);
is_write, &uc->uc_sigmask, puc);
}
#else