diff options
| author | Laurent Vivier <laurent@vivier.eu> | 2018-04-11 21:23:47 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2018-05-03 18:29:15 +0200 |
| commit | 465e237bf7cb6a9d8f9f137508125a14efcce1d6 (patch) | |
| tree | 1eaf5f3576d7f080b2a664466582975ae81ae986 /linux-user/nios2 | |
| parent | e8fa72957419c11984608062c7dcb204a6003a06 (diff) | |
linux-user: introduce target_sigsp() and target_save_altstack()
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180411192347.30228-1-laurent@vivier.eu>
Diffstat (limited to 'linux-user/nios2')
| -rw-r--r-- | linux-user/nios2/signal.c | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/linux-user/nios2/signal.c b/linux-user/nios2/signal.c index 816eed90f1..9a0b36e5ad 100644 --- a/linux-user/nios2/signal.c +++ b/linux-user/nios2/signal.c @@ -42,18 +42,6 @@ struct target_rt_sigframe { struct target_ucontext uc; }; -static unsigned long sigsp(unsigned long sp, struct target_sigaction *ka) -{ - if (unlikely((ka->sa_flags & SA_ONSTACK)) && !sas_ss_flags(sp)) { -#ifdef CONFIG_STACK_GROWSUP - return target_sigaltstack_used.ss_sp; -#else - return target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size; -#endif - } - return sp; -} - static int rt_setup_ucontext(struct target_ucontext *uc, CPUNios2State *env) { unsigned long *gregs = uc->tuc_mcontext.gregs; @@ -158,11 +146,8 @@ static void *get_sigframe(struct target_sigaction *ka, CPUNios2State *env, { unsigned long usp; - /* Default to using normal stack. */ - usp = env->regs[R_SP]; - /* This is the X/Open sanctioned signal stack switching. */ - usp = sigsp(usp, ka); + usp = target_sigsp(get_sp_from_cpustate(env), ka); /* Verify, is it 32 or 64 bit aligned */ return (void *)((usp - frame_size) & -8UL); @@ -185,9 +170,7 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, /* Create the ucontext. */ __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->regs[R_SP]), &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 |= rt_setup_ucontext(&frame->uc, env); for (i = 0; i < TARGET_NSIG_WORDS; i++) { __put_user((abi_ulong)set->sig[i], |