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| author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 01:27:16 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:07 -0700 |
| commit | e8012b584fac3a1bb70cd896612c12086d28e9ff (patch) | |
| tree | 0ec406be2ad1878b601c6e97ad6216764ddae942 /arch/um/kernel/ptrace.c | |
| parent | a5f6096c805e6d2fa03ee932f8c70af34cee41a0 (diff) | |
| download | op-kernel-dev-e8012b584fac3a1bb70cd896612c12086d28e9ff.zip op-kernel-dev-e8012b584fac3a1bb70cd896612c12086d28e9ff.tar.gz | |
uml: ptrace floating point fixes
Handle floating point state better in ptrace. The code now correctly
distinguishes between PTRACE_[GS]ETFPREGS and PTRACE_[GS]ETFPXREGS. The FPX
requests get handed off to arch-specific code because that's not generic.
get_fpregs, set_fpregs, set_fpregs, and set_fpxregs needed real
implementations.
Something here exposed a missing include in asm/page.h, which needed
linux/types.h in order to get gfp_t, so that's fixed here.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/kernel/ptrace.c')
| -rw-r--r-- | arch/um/kernel/ptrace.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c index db55a01..2511f91 100644 --- a/arch/um/kernel/ptrace.c +++ b/arch/um/kernel/ptrace.c @@ -143,22 +143,14 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) #endif #ifdef PTRACE_GETFPREGS case PTRACE_GETFPREGS: /* Get the child FPU state. */ - ret = get_fpregs(data, child); + ret = get_fpregs((struct user_i387_struct __user *) data, + child); break; #endif #ifdef PTRACE_SETFPREGS case PTRACE_SETFPREGS: /* Set the child FPU state. */ - ret = set_fpregs(data, child); - break; -#endif -#ifdef PTRACE_GETFPXREGS - case PTRACE_GETFPXREGS: /* Get the child FPU state. */ - ret = get_fpxregs(data, child); - break; -#endif -#ifdef PTRACE_SETFPXREGS - case PTRACE_SETFPXREGS: /* Set the child FPU state. */ - ret = set_fpxregs(data, child); + ret = set_fpregs((struct user_i387_struct __user *) data, + child); break; #endif case PTRACE_GET_THREAD_AREA: @@ -227,6 +219,8 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) #endif default: ret = ptrace_request(child, request, addr, data); + if (ret == -EIO) + ret = subarch_ptrace(child, request, addr, data); break; } |
