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interrupt_syscall: interrupt valid thread

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This commit is contained in:
Tomoki Shirasawa
2016-10-03 00:49:56 +09:00
parent 8d21846562
commit e03f377326
5 changed files with 9 additions and 35 deletions
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21
kernel/syscall.c
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@ -143,9 +143,11 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid, struct s
/* XXX: is this really going to work if multiple processes
* exit/receive signals at the same time?? */
cpu = num_processors;
if(req->number == __NR_kill)
if (req->number == __NR_kill) {
req->rtid = -1;
pid = req->args[0];
if(req->number == __NR_gettid)
}
if (req->number == __NR_gettid)
pid = req->args[1];
}
else{
@ -1487,27 +1489,18 @@ SYSCALL_DECLARE(getppid)
return thread->proc->ppid_parent->pid;
}
void settid(struct thread *thread, int mode, int newcpuid, int oldcpuid,
int nr_tids, int *tids)
static void settid(struct thread *thread, int nr_tids, int *tids)
{
struct syscall_request request IHK_DMA_ALIGN;
unsigned long rc;
request.number = __NR_gettid;
request.args[0] = mode;
request.args[1] = thread->proc->pid;
request.args[2] = newcpuid;
request.args[3] = oldcpuid;
/*
* If nr_tids is non-zero, tids should point to an array of ints
* where the thread ids of the mcexec process are expected.
*/
request.args[4] = nr_tids;
request.args[5] = virt_to_phys(tids);
rc = do_syscall(&request, ihk_mc_get_processor_id(), thread->proc->pid);
if (mode != 2) {
thread->tid = rc;
}
do_syscall(&request, ihk_mc_get_processor_id(), thread->proc->pid);
}
SYSCALL_DECLARE(gettid)
@ -1930,7 +1923,7 @@ unsigned long do_fork(int clone_flags, unsigned long newsp,
return -ENOMEM;
}
settid(new, 1, cpuid, -1, num_processors, tids);
settid(new, num_processors, tids);
for (i = 0; (i < num_processors) && tids[i]; ++i) {
dkprintf("%s: tid[%d]: %d\n", __FUNCTION__, i, tids[i]);