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save_syscall_return_value(): separate from check_signal() and call from syscall() (for ARM64)

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Balazs Gerofi
2018-01-26 14:43:18 +09:00
parent ebaafa95d8
commit 86efc86945
3 changed files with 21 additions and 22 deletions
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16
kernel/syscall.c
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@@ -113,6 +113,7 @@ static ihk_spinlock_t tod_data_lock = SPIN_LOCK_UNLOCKED;
static void calculate_time_from_tsc(struct timespec *ts);
void check_signal(unsigned long, void *, int);
void save_syscall_return_value(int num, unsigned long rc);
void do_signal(long rc, void *regs, struct thread *thread, struct sig_pending *pending, int num);
extern unsigned long do_kill(struct thread *thread, int pid, int tid, int sig, struct siginfo *info, int ptracecont);
extern long alloc_debugreg(struct thread *thread);
@@ -9365,6 +9366,7 @@ long syscall(int num, ihk_mc_user_context_t *ctx)
if(cpu_local_var(current)->proc->status == PS_EXITED &&
(num != __NR_exit && num != __NR_exit_group)){
save_syscall_return_value(num, -EINVAL);
check_signal(-EINVAL, NULL, 0);
set_cputime(0);
return -EINVAL;
@@ -9425,22 +9427,12 @@ long syscall(int num, ihk_mc_user_context_t *ctx)
l = ihk_mc_syscall_ret(ctx);
}
#if defined(POSTK_DEBUG_TEMP_FIX_60) && defined(POSTK_DEBUG_TEMP_FIX_56)
check_signal(l, NULL, num);
#elif defined(POSTK_DEBUG_TEMP_FIX_60) /* sched_yield called check_signal fix. */
if (num != __NR_futex) {
check_signal(l, NULL, num);
}
#elif defined(POSTK_DEBUG_TEMP_FIX_56) /* in futex_wait() signal handring fix. */
if (num != __NR_sched_yield) {
check_signal(l, NULL, num);
}
#else /* POSTK_DEBUG_TEMP_FIX_60 && POSTK_DEBUG_TEMP_FIX_56 */
save_syscall_return_value(num, l);
if (!list_empty(&thread->sigpending) ||
!list_empty(&thread->sigcommon->sigpending)) {
check_signal(l, NULL, num);
}
#endif /* POSTK_DEBUG_TEMP_FIX_60 && POSTK_DEBUG_TEMP_FIX_56 */
#ifdef PROFILE_ENABLE
{