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authorAmanieu d'Antras <amanieu@gmail.com>2020-01-02 18:24:09 +0100
committerChristian Brauner <christian.brauner@ubuntu.com>2020-01-07 13:31:20 +0100
commit167ee0b82429cb5df272808c7a21370b7c961ab2 (patch)
tree84b2116644d55097994d71d92d9ebdc5090f91f6 /arch/arm/kernel
parenta4376f2fbcc8084832f2f114577c8d68234c7903 (diff)
downloadblackbird-op-linux-167ee0b82429cb5df272808c7a21370b7c961ab2.tar.gz
blackbird-op-linux-167ee0b82429cb5df272808c7a21370b7c961ab2.zip
arm: 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-arm-kernel@lists.infradead.org Cc: <stable@vger.kernel.org> # 5.3.x Link: https://lore.kernel.org/r/20200102172413.654385-4-amanieu@gmail.com Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/process.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index cea1c27c29cb..46e478fb5ea2 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -226,8 +226,8 @@ void release_thread(struct task_struct *dead_task)
asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
int
-copy_thread(unsigned long clone_flags, unsigned long stack_start,
- unsigned long stk_sz, struct task_struct *p)
+copy_thread_tls(unsigned long clone_flags, unsigned long stack_start,
+ unsigned long stk_sz, struct task_struct *p, unsigned long tls)
{
struct thread_info *thread = task_thread_info(p);
struct pt_regs *childregs = task_pt_regs(p);
@@ -261,7 +261,7 @@ copy_thread(unsigned long clone_flags, unsigned long stack_start,
clear_ptrace_hw_breakpoint(p);
if (clone_flags & CLONE_SETTLS)
- thread->tp_value[0] = childregs->ARM_r3;
+ thread->tp_value[0] = tls;
thread->tp_value[1] = get_tpuser();
thread_notify(THREAD_NOTIFY_COPY, thread);
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