diff options
| author |   Maxim Kuvyrkov <maxim@codesourcery.com> | 2009-12-07 00:24:27 -0800 |
|---|---|---|
| committer |   Geert Uytterhoeven <geert@linux-m68k.org> | 2010-02-27 18:31:19 +0100 |
| commit | 9674cdc74d63f346870943ef966a034f8c71ee57 (patch) | |
| tree | c590640335983c5b1a7f5c9589478bf90fb68d03 /arch/m68k/kernel/ptrace.c | |
| parent | m68k: Eliminate unused variable in page_to_phys() (diff) | |
| download | linux-dev-9674cdc74d63f346870943ef966a034f8c71ee57.tar.xz linux-dev-9674cdc74d63f346870943ef966a034f8c71ee57.zip | |
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 <maxim@codesourcery.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/kernel/ptrace.c')
| -rw-r--r-- | arch/m68k/kernel/ptrace.c | 5 |
1 files changed, 5 insertions, 0 deletions
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; |