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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-10-25 09:19:59 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-10-25 09:19:59 +0200 |
| commit | bdf4e9482360a3ddc1619efbd5d1c928ede8c3fa (patch) | |
| tree | b02319e809c5b8abfca85409a11472775e27f597 /arch/arm/kernel/traps.c | |
| parent | Merge branches 'arnd-randcfg-fixes', 'debug', 'io' (early part), 'l2x0', 'p2v... (diff) | |
| parent | ARM: 7133/1: SMP: fix per cpu timer setup before the cpu is marked online (diff) | |
| download | linux-bdf4e9482360a3ddc1619efbd5d1c928ede8c3fa.tar.xz linux-bdf4e9482360a3ddc1619efbd5d1c928ede8c3fa.zip | |
Merge branch 'misc' into for-linus
Conflicts:
arch/arm/mach-integrator/integrator_ap.c
Diffstat (limited to 'arch/arm/kernel/traps.c')
| -rw-r--r-- | arch/arm/kernel/traps.c | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 210382555af1..7f5b99eb2c50 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -21,6 +21,7 @@ #include <linux/kdebug.h> #include <linux/module.h> #include <linux/kexec.h> +#include <linux/bug.h> #include <linux/delay.h> #include <linux/init.h> #include <linux/sched.h> @@ -271,6 +272,8 @@ void die(const char *str, struct pt_regs *regs, int err) spin_lock_irq(&die_lock); console_verbose(); bust_spinlocks(1); + if (!user_mode(regs)) + report_bug(regs->ARM_pc, regs); ret = __die(str, err, thread, regs); if (regs && kexec_should_crash(thread->task)) @@ -302,6 +305,24 @@ void arm_notify_die(const char *str, struct pt_regs *regs, } } +#ifdef CONFIG_GENERIC_BUG + +int is_valid_bugaddr(unsigned long pc) +{ +#ifdef CONFIG_THUMB2_KERNEL + unsigned short bkpt; +#else + unsigned long bkpt; +#endif + + if (probe_kernel_address((unsigned *)pc, bkpt)) + return 0; + + return bkpt == BUG_INSTR_VALUE; +} + +#endif + static LIST_HEAD(undef_hook); static DEFINE_SPINLOCK(undef_lock); @@ -707,16 +728,6 @@ baddataabort(int code, unsigned long instr, struct pt_regs *regs) arm_notify_die("unknown data abort code", regs, &info, instr, 0); } -void __attribute__((noreturn)) __bug(const char *file, int line) -{ - printk(KERN_CRIT"kernel BUG at %s:%d!\n", file, line); - *(int *)0 = 0; - - /* Avoid "noreturn function does return" */ - for (;;); -} -EXPORT_SYMBOL(__bug); - void __readwrite_bug(const char *fn) { printk("%s called, but not implemented\n", fn); |