linux/arch/x86/um/tls_64.c
Amanieu d'Antras 457677c70c
um: Implement copy_thread_tls
This is required for clone3 which passes the TLS value through a
struct rather than a register.

Signed-off-by: Amanieu d'Antras <amanieu@gmail.com>
Cc: linux-um@lists.infradead.org
Cc: <stable@vger.kernel.org> # 5.3.x
Link: https://lore.kernel.org/r/20200104123928.1048822-1-amanieu@gmail.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2020-01-07 13:31:29 +01:00

19 lines
358 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/sched.h>
#include <asm/ptrace-abi.h>
void clear_flushed_tls(struct task_struct *task)
{
}
int arch_set_tls(struct task_struct *t, unsigned long tls)
{
/*
* If CLONE_SETTLS is set, we need to save the thread id
* so it can be set during context switches.
*/
t->thread.arch.fs = tls;
return 0;
}