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authorIngo Molnar <mingo@elte.hu>2008-10-15 13:46:29 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-15 13:46:29 +0200
commitb2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (patch)
tree53ccb1c2c14751fe69cf93102e76e97021f6df07 /arch/sparc64/mm/fault.c
parent4f962d4d65923d7b722192e729840cfb79af0a5a (diff)
parent278429cff8809958d25415ba0ed32b59866ab1a8 (diff)
Merge branch 'linus' into stackprotector
Conflicts: arch/x86/kernel/Makefile include/asm-x86/pda.h
Diffstat (limited to 'arch/sparc64/mm/fault.c')
-rw-r--r--arch/sparc64/mm/fault.c42
1 files changed, 2 insertions, 40 deletions
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 236f4d228d2..a9e474bf638 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -1,7 +1,7 @@
/*
* arch/sparc64/mm/fault.c: Page fault handlers for the 64-bit Sparc.
*
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
* Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz)
*/
@@ -18,7 +18,6 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kprobes.h>
-#include <linux/kallsyms.h>
#include <linux/kdebug.h>
#include <asm/page.h>
@@ -52,43 +51,6 @@ static inline int notify_page_fault(struct pt_regs *regs)
}
#endif
-/*
- * To debug kernel to catch accesses to certain virtual/physical addresses.
- * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints.
- * flags = VM_READ watches memread accesses, flags = VM_WRITE watches memwrite accesses.
- * Caller passes in a 64bit aligned addr, with mask set to the bytes that need to be
- * watched. This is only useful on a single cpu machine for now. After the watchpoint
- * is detected, the process causing it will be killed, thus preventing an infinite loop.
- */
-void set_brkpt(unsigned long addr, unsigned char mask, int flags, int mode)
-{
- unsigned long lsubits;
-
- __asm__ __volatile__("ldxa [%%g0] %1, %0"
- : "=r" (lsubits)
- : "i" (ASI_LSU_CONTROL));
- lsubits &= ~(LSU_CONTROL_PM | LSU_CONTROL_VM |
- LSU_CONTROL_PR | LSU_CONTROL_VR |
- LSU_CONTROL_PW | LSU_CONTROL_VW);
-
- __asm__ __volatile__("stxa %0, [%1] %2\n\t"
- "membar #Sync"
- : /* no outputs */
- : "r" (addr), "r" (mode ? VIRT_WATCHPOINT : PHYS_WATCHPOINT),
- "i" (ASI_DMMU));
-
- lsubits |= ((unsigned long)mask << (mode ? 25 : 33));
- if (flags & VM_READ)
- lsubits |= (mode ? LSU_CONTROL_VR : LSU_CONTROL_PR);
- if (flags & VM_WRITE)
- lsubits |= (mode ? LSU_CONTROL_VW : LSU_CONTROL_PW);
- __asm__ __volatile__("stxa %0, [%%g0] %1\n\t"
- "membar #Sync"
- : /* no outputs */
- : "r" (lsubits), "i" (ASI_LSU_CONTROL)
- : "memory");
-}
-
static void __kprobes unhandled_fault(unsigned long address,
struct task_struct *tsk,
struct pt_regs *regs)
@@ -115,7 +77,7 @@ static void bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
regs->tpc);
printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
- print_symbol("RPC: <%s>\n", regs->u_regs[15]);
+ printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]);
printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
dump_stack();
unhandled_fault(regs->tpc, current, regs);