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dde_linux: silent warning in fork

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When initializing a task_struct within the lx_emul library
we have to temporarily use a big object on the stack.

Ref #4344
This commit is contained in:
Stefan Kalkowski 2021-12-10 15:39:19 +01:00 committed by Norman Feske
parent f9e0548d0c
commit b11731d6b2
1 changed files with 9 additions and 1 deletions
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10
repos/dde_linux/src/lib/lx_emul/shadow/kernel/fork.c
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@ -19,13 +19,19 @@
#include <lx_emul/task.h>
#include <linux/sched/task.h>
/*
* We accept that we transfer the 4KiB task_struct object via stack in
* initialization, therefore mask the warning here
*/
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wframe-larger-than="
pid_t kernel_thread(int (* fn)(void *),void * arg,unsigned long flags)
{
static int pid_counter = FIRST_PID;
struct task_struct * task = kmalloc(sizeof(struct task_struct), GFP_KERNEL);
*task = (struct task_struct){
*task = (struct task_struct) {
.state = 0,
.usage = REFCOUNT_INIT(2),
.flags = PF_KTHREAD,
@ -57,3 +63,5 @@ pid_t kernel_thread(int (* fn)(void *),void * arg,unsigned long flags)
lx_emul_task_create(task, "kthread", task->pid, fn, arg);
return task->pid;
}
#pragma GCC diagnostic pop