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/mips/signal.c | |
| 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/mips/signal.c')
| -rw-r--r-- | linux-user/mips/signal.c | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/linux-user/mips/signal.c b/linux-user/mips/signal.c index adeb5a4241..ed9849c7f6 100644 --- a/linux-user/mips/signal.c +++ b/linux-user/mips/signal.c @@ -179,20 +179,12 @@ get_sigframe(struct target_sigaction *ka, CPUMIPSState *regs, size_t frame_size) { unsigned long sp; - /* Default to using normal stack */ - sp = regs->active_tc.gpr[29]; - /* * FPU emulator may have its own trampoline active just * above the user stack, 16-bytes before the next lowest * 16 byte boundary. Try to avoid trashing it. */ - sp -= 32; - - /* 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; - } + sp = target_sigsp(get_sp_from_cpustate(regs) - 32, ka); return (sp - frame_size) & ~7; } @@ -323,10 +315,7 @@ void setup_rt_frame(int sig, struct target_sigaction *ka, __put_user(0, &frame->rs_uc.tuc_flags); __put_user(0, &frame->rs_uc.tuc_link); - __put_user(target_sigaltstack_used.ss_sp, &frame->rs_uc.tuc_stack.ss_sp); - __put_user(target_sigaltstack_used.ss_size, &frame->rs_uc.tuc_stack.ss_size); - __put_user(sas_ss_flags(get_sp_from_cpustate(env)), - &frame->rs_uc.tuc_stack.ss_flags); + target_save_altstack(&frame->rs_uc.tuc_stack, env); setup_sigcontext(env, &frame->rs_uc.tuc_mcontext); |