Commit 68acfdcb authored by Al Viro's avatar Al Viro

m68k: switch to generic extable.h

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent d597580d
......@@ -5,6 +5,7 @@ generic-y += device.h
generic-y += emergency-restart.h
generic-y += errno.h
generic-y += exec.h
generic-y += extable.h
generic-y += futex.h
generic-y += hw_irq.h
generic-y += ioctl.h
......
......@@ -122,16 +122,6 @@ static inline void start_thread(struct pt_regs * regs, unsigned long pc,
wrusp(usp);
}
#ifdef CONFIG_MMU
extern int handle_kernel_fault(struct pt_regs *regs);
#else
static inline int handle_kernel_fault(struct pt_regs *regs)
{
/* Any fault in kernel is fatal on non-mmu */
return 0;
}
#endif
/* Forward declaration, a strange C thing */
struct task_struct;
......
......@@ -4,6 +4,7 @@
#include <asm/uaccess_mm.h>
#endif
#include <asm/extable.h>
#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
#include <asm-generic/uaccess-unaligned.h>
#else
......
......@@ -31,24 +31,6 @@ static inline int access_ok(int type, const void __user *addr,
#define MOVES "move"
#endif
/*
* The exception table consists of pairs of addresses: the first is the
* address of an instruction that is allowed to fault, and the second is
* the address at which the program should continue. No registers are
* modified, so it is entirely up to the continuation code to figure out
* what to do.
*
* All the routines below use bits of fixup code that are out of line
* with the main instruction path. This means when everything is well,
* we don't even have to jump over them. Further, they do not intrude
* on our cache or tlb entries.
*/
struct exception_table_entry
{
unsigned long insn, fixup;
};
extern int __put_user_bad(void);
extern int __get_user_bad(void);
......
......@@ -22,25 +22,6 @@ static inline int _access_ok(unsigned long addr, unsigned long size)
return 1;
}
/*
* The exception table consists of pairs of addresses: the first is the
* address of an instruction that is allowed to fault, and the second is
* the address at which the program should continue. No registers are
* modified, so it is entirely up to the continuation code to figure out
* what to do.
*
* All the routines below use bits of fixup code that are out of line
* with the main instruction path. This means when everything is well,
* we don't even have to jump over them. Further, they do not intrude
* on our cache or tlb entries.
*/
struct exception_table_entry
{
unsigned long insn, fixup;
};
/*
* These are the main single-value transfer routines. They automatically
* use the right size if we just have the right pointer type.
......
......@@ -88,7 +88,7 @@ static inline int frame_extra_sizes(int f)
return frame_size_change[f];
}
int handle_kernel_fault(struct pt_regs *regs)
int fixup_exception(struct pt_regs *regs)
{
const struct exception_table_entry *fixup;
struct pt_regs *tregs;
......
......@@ -1016,7 +1016,12 @@ asmlinkage void trap_c(struct frame *fp)
/* traced a trapping instruction on a 68020/30,
* real exception will be executed afterwards.
*/
} else if (!handle_kernel_fault(&fp->ptregs))
return;
}
#ifdef CONFIG_MMU
if (fixup_exception(&fp->ptregs))
return;
#endif
bad_super_trap(fp);
return;
}
......
......@@ -32,7 +32,7 @@ int send_fault_sig(struct pt_regs *regs)
force_sig_info(siginfo.si_signo,
&siginfo, current);
} else {
if (handle_kernel_fault(regs))
if (fixup_exception(regs))
return -1;
//if (siginfo.si_signo == SIGBUS)
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment