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user-exec: Delete now-unused hppa and m68k cpu_signal_handler() code 

Now that configure blocks attempts to build user-mode code on hppa
and m68k hosts, we can delete the cpu_signal_handler() implementations
for those architectures.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
master
Peter Maydell 2016-06-13 11:43:18 +01:00 committed by Riku Voipio
parent affc88cc9b
commit 4259a820d2
1 changed files with 0 additions and 60 deletions
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60
user-exec.c
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@ -494,24 +494,6 @@ int cpu_signal_handler(int host_signum, void *pinfo, void *puc)
is_write, &uc->uc_sigmask);
}
#elif defined(__mc68000)
int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
struct ucontext *uc = puc;
unsigned long pc;
int is_write;
pc = uc->uc_mcontext.gregs[16];
/* XXX: compute is_write */
is_write = 0;
return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write,
&uc->uc_sigmask);
}
#elif defined(__ia64)
#ifndef __ISR_VALID
@ -616,48 +598,6 @@ int cpu_signal_handler(int host_signum, void *pinfo,
is_write, &uc->uc_sigmask);
}
#elif defined(__hppa__)
int cpu_signal_handler(int host_signum, void *pinfo,
void *puc)
{
siginfo_t *info = pinfo;
struct ucontext *uc = puc;
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;
}
return handle_cpu_signal(pc, (unsigned long)info->si_addr,
is_write, &uc->uc_sigmask);
}
#else
#error host CPU specific signal handler needed