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authorJeff Dike <jdike@addtoit.com>2008-02-04 22:30:57 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-05 09:44:28 -0800
commitd25f2e1235aab716c9fd6ba36c42503627a3a0e3 (patch)
tree5eaabe739be50f1417707fb6eef2da75dc567a30 /arch/um/os-Linux/registers.c
parentee3d9bd4de1ed93d2a7ee41c331ed30a1c7b8acd (diff)
downloadlinux-2.6.34-ux500-d25f2e1235aab716c9fd6ba36c42503627a3a0e3.tar.gz
uml: use ptrace directly in libc code
Some register accessor cleanups - userspace() was calling restore_registers and save_registers for no reason, since userspace() is on the libc side of the house, and these add no value over calling ptrace directly init_thread_registers and get_safe_registers were the same thing, so init_thread_registers is gone 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/os-Linux/registers.c')
-rw-r--r--arch/um/os-Linux/registers.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/um/os-Linux/registers.c b/arch/um/os-Linux/registers.c
index a32ba6ab121..c78fae3aba8 100644
--- a/arch/um/os-Linux/registers.c
+++ b/arch/um/os-Linux/registers.c
@@ -10,15 +10,6 @@
#include "sysdep/ptrace.h"
#include "user.h"
-/* This is set once at boot time and not changed thereafter */
-
-static unsigned long exec_regs[MAX_REG_NR];
-
-void init_thread_registers(struct uml_pt_regs *to)
-{
- memcpy(to->gp, exec_regs, sizeof(to->gp));
-}
-
void save_registers(int pid, struct uml_pt_regs *regs)
{
int err;
@@ -39,6 +30,10 @@ void restore_registers(int pid, struct uml_pt_regs *regs)
"errno = %d\n", errno);
}
+/* This is set once at boot time and not changed thereafter */
+
+static unsigned long exec_regs[MAX_REG_NR];
+
void init_registers(int pid)
{
int err;