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x32: Export setup/restore_sigcontext from signal.c

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Export setup_sigcontext() and restore_sigcontext() from signal.c, so
we can use the 64-bit versions verbatim for x32.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2012-02-19 07:43:09 -08:00
parent f28f0c2357
commit 851394229e
2 changed files with 9 additions and 6 deletions
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5
arch/x86/include/asm/sighandling.h
View File

@ -16,4 +16,9 @@
void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
unsigned long *pax);
int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
struct pt_regs *regs, unsigned long mask);
#endif /* _ASM_X86_SIGHANDLING_H */

10
arch/x86/kernel/signal.c
View File

@ -60,9 +60,8 @@
regs->seg = GET_SEG(seg) | 3; \
} while (0)
static int
restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
unsigned long *pax)
int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
unsigned long *pax)
{
void __user *buf;
unsigned int tmpflags;
@ -117,9 +116,8 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
return err;
}
static int
setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
struct pt_regs *regs, unsigned long mask)
int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
struct pt_regs *regs, unsigned long mask)
{
int err = 0;