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clone_thread: fork(2) copy sigstack infos from parent

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This commit is contained in:
Tomoki Shirasawa
2016-07-13 16:15:01 +09:00
parent 46c37fc8f3
commit dad6470c60
1 changed files with 8 additions and 3 deletions
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11
kernel/process.c
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@ -338,6 +338,10 @@ clone_thread(struct thread *org, unsigned long pc, unsigned long sp,
proc = org->proc; proc = org->proc;
thread->vm = org->vm; thread->vm = org->vm;
thread->proc = proc; thread->proc = proc;
thread->sigstack.ss_sp = NULL;
thread->sigstack.ss_flags = SS_DISABLE;
thread->sigstack.ss_size = 0;
} }
/* fork() */ /* fork() */
else { else {
@ -386,6 +390,10 @@ clone_thread(struct thread *org, unsigned long pc, unsigned long sp,
thread->proc->maxrss = org->proc->maxrss; thread->proc->maxrss = org->proc->maxrss;
thread->vm->currss = org->vm->currss; thread->vm->currss = org->vm->currss;
thread->sigstack.ss_sp = org->sigstack.ss_sp;
thread->sigstack.ss_flags = org->sigstack.ss_flags;
thread->sigstack.ss_size = org->sigstack.ss_size;
dkprintf("fork(): copy_user_ranges() OK\n"); dkprintf("fork(): copy_user_ranges() OK\n");
} }
@ -413,9 +421,6 @@ clone_thread(struct thread *org, unsigned long pc, unsigned long sp,
INIT_LIST_HEAD(&thread->sigcommon->sigpending); INIT_LIST_HEAD(&thread->sigcommon->sigpending);
// TODO: copy signalfd // TODO: copy signalfd
} }
thread->sigstack.ss_sp = NULL;
thread->sigstack.ss_flags = SS_DISABLE;
thread->sigstack.ss_size = 0;
ihk_mc_spinlock_init(&thread->sigpendinglock); ihk_mc_spinlock_init(&thread->sigpendinglock);
INIT_LIST_HEAD(&thread->sigpending); INIT_LIST_HEAD(&thread->sigpending);
thread->sigmask = org->sigmask; thread->sigmask = org->sigmask;