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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/m68k/signal.c
View file

@ -117,14 +117,10 @@ static inline abi_ulong
get_sigframe(struct target_sigaction *ka, CPUM68KState *regs,
size_t frame_size)
{
unsigned long sp;
abi_ulong sp;
sp = regs->aregs[7];
sp = target_sigsp(get_sp_from_cpustate(regs), ka);
/* This is the X/Open sanctioned signal stack switching. */
if ((ka->sa_flags & TARGET_SA_ONSTACK) && (sas_ss_flags (sp) == 0)) {
sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
}
return ((sp - frame_size) & -8UL);
}
@ -318,12 +314,7 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
__put_user(0, &frame->uc.tuc_flags);
__put_user(0, &frame->uc.tuc_link);
__put_user(target_sigaltstack_used.ss_sp,
&frame->uc.tuc_stack.ss_sp);
__put_user(sas_ss_flags(env->aregs[7]),
&frame->uc.tuc_stack.ss_flags);
__put_user(target_sigaltstack_used.ss_size,
&frame->uc.tuc_stack.ss_size);
target_save_altstack(&frame->uc.tuc_stack, env);
err |= target_rt_setup_ucontext(&frame->uc, env);
if (err)