lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

uml: ptrace floating point fixes

Browse Source 
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>
This commit is contained in:
Jeff Dike
2007-10-16 01:27:16 -07:00
committed by Linus Torvalds
parent a5f6096c80
commit e8012b584f
6 changed files with 110 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
arch/um/kernel/ptrace.c
View File

@ -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;
}