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fix pipe02

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This commit is contained in:
Tomoki Shirasawa
2014-08-27 16:50:01 +09:00
parent bc8b441358
commit f535670100
5 changed files with 77 additions and 32 deletions
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24
kernel/syscall.c
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@@ -120,6 +120,7 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid)
int ret;
if(req->number == __NR_exit_group ||
req->number == __NR_gettid ||
req->number == __NR_kill){ // interrupt syscall
extern int num_processors;
@@ -131,6 +132,8 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid)
cpu = num_processors;
if(req->number == __NR_kill)
pid = req->args[0];
if(req->number == __NR_gettid)
pid = req->args[1];
}
else{
scp = &get_cpu_local_var(cpu)->scp;
@@ -188,6 +191,7 @@ long do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx,
req->number);
if(req->number == __NR_exit_group ||
req->number == __NR_gettid ||
req->number == __NR_kill){ // interrupt syscall
scp = &get_cpu_local_var(0)->scp2;
islock = 1;
@@ -1121,6 +1125,20 @@ SYSCALL_DECLARE(getpid)
return cpu_local_var(current)->pid;
}
void
settid(struct process *proc, int mode, int newcpuid, int oldcpuid)
{
ihk_mc_user_context_t ctx;
unsigned long rc;
ihk_mc_syscall_arg0(&ctx) = mode;
ihk_mc_syscall_arg1(&ctx) = proc->pid;
ihk_mc_syscall_arg2(&ctx) = newcpuid;
ihk_mc_syscall_arg3(&ctx) = oldcpuid;
rc = syscall_generic_forwarding(__NR_gettid, &ctx);
proc->tid = rc;
}
SYSCALL_DECLARE(gettid)
{
return cpu_local_var(current)->tid;
@@ -1325,9 +1343,7 @@ SYSCALL_DECLARE(clone)
if (clone_flags & CLONE_VM) {
new->pid = cpu_local_var(current)->pid;
request1.number = __NR_gettid;
new->tid = do_syscall(&request1, &ctx1, cpuid, new->pid);
settid(new, 1, cpuid, -1);
}
/* fork() a new process on the host */
else {
@@ -1342,7 +1358,7 @@ SYSCALL_DECLARE(clone)
}
/* In a single threaded process TID equals to PID */
new->tid = new->pid;
settid(new, 0, cpuid, -1);
dkprintf("fork(): new pid: %d\n", new->pid);
/* clear user space PTEs and set new rpgtable so that consequent