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linux-user: introduce target_sigsp() and target_save_altstack()

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Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180411192347.30228-1-laurent@vivier.eu>
This commit is contained in:
Laurent Vivier 2018-04-11 21:23:47 +02:00
parent e8fa729574
commit 465e237bf7
19 changed files with 108 additions and 203 deletions
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15
linux-user/ppc/signal.c
View file

@ -217,13 +217,7 @@ static target_ulong get_sigframe(struct target_sigaction *ka,
{
target_ulong oldsp;
oldsp = env->gpr[1];
if ((ka->sa_flags & TARGET_SA_ONSTACK) &&
(sas_ss_flags(oldsp) == 0)) {
oldsp = (target_sigaltstack_used.ss_sp
+ target_sigaltstack_used.ss_size);
}
oldsp = target_sigsp(get_sp_from_cpustate(env), ka);
return (oldsp - frame_size) & ~0xFUL;
}
@ -515,12 +509,7 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
__put_user(0, &rt_sf->uc.tuc_flags);
__put_user(0, &rt_sf->uc.tuc_link);
__put_user((target_ulong)target_sigaltstack_used.ss_sp,
&rt_sf->uc.tuc_stack.ss_sp);
__put_user(sas_ss_flags(env->gpr[1]),
&rt_sf->uc.tuc_stack.ss_flags);
__put_user(target_sigaltstack_used.ss_size,
&rt_sf->uc.tuc_stack.ss_size);
target_save_altstack(&rt_sf->uc.tuc_stack, env);
#if !defined(TARGET_PPC64)
__put_user(h2g (&rt_sf->uc.tuc_mcontext),
&rt_sf->uc.tuc_regs);