gh0s7/mckernel
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kill child threads when receiving terminating signals(redmine#63)

Browse Source 
Create process table (child is missing when sending a signal to a child process just after forking it)(redmine#61)
This commit is contained in:
Tomoki Shirasawa
2014-07-13 12:51:28 +09:00
parent 292b34fe21
commit 5e6ed852cb
3 changed files with 51 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
kernel/init.c
View File

@ -211,8 +211,11 @@ static void post_init(void)
}
if (find_command_line("hidos")) {
extern ihk_spinlock_t syscall_lock;
init_host_syscall_channel();
init_host_syscall_channel2();
ihk_mc_spinlock_init(&syscall_lock);
}
ap_start();
}

13
kernel/syscall.c
View File

@ -168,6 +168,7 @@ static void send_syscall(struct syscall_request *req, int cpu, int pid)
#endif
}
ihk_spinlock_t syscall_lock;
long do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx,
int cpu, int pid)
@ -176,6 +177,9 @@ long do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx,
struct syscall_request req2 IHK_DMA_ALIGN;
struct syscall_params *scp;
int error;
long rc;
int islock = 0;
unsigned long irqstate;
dkprintf("SC(%d)[%3d] sending syscall\n",
ihk_mc_get_processor_id(),
@ -184,6 +188,8 @@ long do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx,
if(req->number == __NR_exit_group ||
req->number == __NR_kill){ // interrupt syscall
scp = &get_cpu_local_var(0)->scp2;
islock = 1;
irqstate = ihk_mc_spinlock_lock(&syscall_lock);
}
else{
scp = &get_cpu_local_var(cpu)->scp;
@ -225,7 +231,12 @@ long do_syscall(struct syscall_request *req, ihk_mc_user_context_t *ctx,
ihk_mc_get_processor_id(),
req->number, res->ret);
return res->ret;
rc = res->ret;
if(islock){
ihk_mc_spinlock_unlock(&syscall_lock, irqstate);
}
return rc;
}
long syscall_generic_forwarding(int n, ihk_mc_user_context_t *ctx)