From 9674cdc74d63f346870943ef966a034f8c71ee57 Mon Sep 17 00:00:00 2001 From: Maxim Kuvyrkov Date: Mon, 7 Dec 2009 00:24:27 -0800 Subject: m68k: Add NPTL support This patch adds several syscalls, that provide necessary functionality to support NPTL on m68k/ColdFire. The syscalls are get_thread_area, set_thread_area, atomic_cmpxchg_32 and atomic_barrier. The cmpxchg syscall is required for ColdFire as it doesn't support 'cas' instruction. Also a ptrace call PTRACE_GET_THREAD_AREA is added to allow debugger to inspect the TLS storage. Signed-off-by: Maxim Kuvyrkov Signed-off-by: Geert Uytterhoeven --- arch/m68k/kernel/ptrace.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/m68k/kernel/ptrace.c') diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index 1fc217e5f06b..616e59752c29 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -245,6 +245,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) ret = -EFAULT; break; + case PTRACE_GET_THREAD_AREA: + ret = put_user(task_thread_info(child)->tp_value, + (unsigned long __user *)data); + break; + default: ret = ptrace_request(child, request, addr, data); break; -- cgit v1.2.3