#include <asm/traps.h>
#include "ptrace.h"
+#include "signal.h"
const char *processor_modes[]=
{ "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" ,
do_exit(SIGSEGV);
}
-void die_if_kernel(const char *str, struct pt_regs *regs, int err)
-{
- if (user_mode(regs))
- return;
-
- die(str, regs, err);
-}
-
-static void notify_die(const char *str, struct pt_regs *regs, siginfo_t *info,
- unsigned long err, unsigned long trap)
+void notify_die(const char *str, struct pt_regs *regs, struct siginfo *info,
+ unsigned long err, unsigned long trap)
{
if (user_mode(regs)) {
current->thread.error_code = err;
void register_undef_hook(struct undef_hook *hook)
{
- spin_lock_irq(&undef_lock);
+ unsigned long flags;
+
+ spin_lock_irqsave(&undef_lock, flags);
list_add(&hook->node, &undef_hook);
- spin_unlock_irq(&undef_lock);
+ spin_unlock_irqrestore(&undef_lock, flags);
}
void unregister_undef_hook(struct undef_hook *hook)
{
- spin_lock_irq(&undef_lock);
+ unsigned long flags;
+
+ spin_lock_irqsave(&undef_lock, flags);
list_del(&hook->node);
- spin_unlock_irq(&undef_lock);
+ spin_unlock_irqrestore(&undef_lock, flags);
}
asmlinkage void do_undefinstr(struct pt_regs *regs)
notify_die("unknown data abort code", regs, &info, instr, 0);
}
-volatile void __bug(const char *file, int line, void *data)
+void __attribute__((noreturn)) __bug(const char *file, int line, void *data)
{
printk(KERN_CRIT"kernel BUG at %s:%d!", file, line);
if (data)
memcpy((void *)0xffff0000, __vectors_start, __vectors_end - __vectors_start);
memcpy((void *)0xffff0200, __stubs_start, __stubs_end - __stubs_start);
memcpy((void *)0xffff1000 - kuser_sz, __kuser_helper_start, kuser_sz);
+
+ /*
+ * Copy signal return handlers into the vector page, and
+ * set sigreturn to be a pointer to these.
+ */
+ memcpy((void *)KERN_SIGRETURN_CODE, sigreturn_codes,
+ sizeof(sigreturn_codes));
+
flush_icache_range(0xffff0000, 0xffff0000 + PAGE_SIZE);
modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
}