From 5f857bce21cfd0531dc7d4daac74d976caf6166b Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 14 Jun 2012 14:18:51 +0900 Subject: sh: Consolidate die definitions for trap handlers. This kills off the _64 versions and consolidates on the more robust _32 versions instead. Signed-off-by: Paul Mundt --- arch/sh/kernel/traps.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++ arch/sh/kernel/traps_32.c | 71 ----------------------------------------------- arch/sh/kernel/traps_64.c | 31 --------------------- 3 files changed, 71 insertions(+), 102 deletions(-) (limited to 'arch/sh/kernel') diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index a87e58a9e38f..72246bc06884 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c @@ -6,9 +6,80 @@ #include #include #include +#include +#include +#include #include #include +static DEFINE_SPINLOCK(die_lock); + +void die(const char *str, struct pt_regs *regs, long err) +{ + static int die_counter; + + oops_enter(); + + spin_lock_irq(&die_lock); + console_verbose(); + bust_spinlocks(1); + + printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter); + print_modules(); + show_regs(regs); + + printk("Process: %s (pid: %d, stack limit = %p)\n", current->comm, + task_pid_nr(current), task_stack_page(current) + 1); + + if (!user_mode(regs) || in_interrupt()) + dump_mem("Stack: ", regs->regs[15], THREAD_SIZE + + (unsigned long)task_stack_page(current)); + + notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV); + + bust_spinlocks(0); + add_taint(TAINT_DIE); + spin_unlock_irq(&die_lock); + oops_exit(); + + if (kexec_should_crash(current)) + crash_kexec(regs); + + if (in_interrupt()) + panic("Fatal exception in interrupt"); + + if (panic_on_oops) + panic("Fatal exception"); + + do_exit(SIGSEGV); +} + +void die_if_kernel(const char *str, struct pt_regs *regs, long err) +{ + if (!user_mode(regs)) + die(str, regs, err); +} + +/* + * try and fix up kernelspace address errors + * - userspace errors just cause EFAULT to be returned, resulting in SEGV + * - kernel/userspace interfaces cause a jump to an appropriate handler + * - other kernel errors are bad + */ +void die_if_no_fixup(const char *str, struct pt_regs *regs, long err) +{ + if (!user_mode(regs)) { + const struct exception_table_entry *fixup; + fixup = search_exception_tables(regs->pc); + if (fixup) { + regs->pc = fixup->fixup; + return; + } + + die(str, regs, err); + } +} + #ifdef CONFIG_GENERIC_BUG static void handle_BUG(struct pt_regs *regs) { diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c index b8f5a51841ec..5f513a64dedf 100644 --- a/arch/sh/kernel/traps_32.c +++ b/arch/sh/kernel/traps_32.c @@ -16,13 +16,11 @@ #include #include #include -#include #include #include #include #include #include -#include #include #include #include @@ -48,75 +46,6 @@ #define TRAP_ILLEGAL_SLOT_INST 13 #endif -static DEFINE_SPINLOCK(die_lock); - -void die(const char * str, struct pt_regs * regs, long err) -{ - static int die_counter; - - oops_enter(); - - spin_lock_irq(&die_lock); - console_verbose(); - bust_spinlocks(1); - - printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter); - print_modules(); - show_regs(regs); - - printk("Process: %s (pid: %d, stack limit = %p)\n", current->comm, - task_pid_nr(current), task_stack_page(current) + 1); - - if (!user_mode(regs) || in_interrupt()) - dump_mem("Stack: ", regs->regs[15], THREAD_SIZE + - (unsigned long)task_stack_page(current)); - - notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV); - - bust_spinlocks(0); - add_taint(TAINT_DIE); - spin_unlock_irq(&die_lock); - oops_exit(); - - if (kexec_should_crash(current)) - crash_kexec(regs); - - if (in_interrupt()) - panic("Fatal exception in interrupt"); - - if (panic_on_oops) - panic("Fatal exception"); - - do_exit(SIGSEGV); -} - -static inline void die_if_kernel(const char *str, struct pt_regs *regs, - long err) -{ - if (!user_mode(regs)) - die(str, regs, err); -} - -/* - * try and fix up kernelspace address errors - * - userspace errors just cause EFAULT to be returned, resulting in SEGV - * - kernel/userspace interfaces cause a jump to an appropriate handler - * - other kernel errors are bad - */ -static void die_if_no_fixup(const char * str, struct pt_regs * regs, long err) -{ - if (!user_mode(regs)) { - const struct exception_table_entry *fixup; - fixup = search_exception_tables(regs->pc); - if (fixup) { - regs->pc = fixup->fixup; - return; - } - - die(str, regs, err); - } -} - static inline void sign_extend(unsigned int count, unsigned char *dst) { #ifdef __LITTLE_ENDIAN__ diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c index c902c29400a3..75bef61892d2 100644 --- a/arch/sh/kernel/traps_64.c +++ b/arch/sh/kernel/traps_64.c @@ -41,37 +41,6 @@ asmlinkage void do_##name(unsigned long error_code, struct pt_regs *regs) \ do_unhandled_exception(trapnr, signr, str, __stringify(name), error_code, regs, current); \ } -static DEFINE_SPINLOCK(die_lock); - -void die(const char * str, struct pt_regs * regs, long err) -{ - console_verbose(); - spin_lock_irq(&die_lock); - printk("%s: %lx\n", str, (err & 0xffffff)); - show_regs(regs); - spin_unlock_irq(&die_lock); - do_exit(SIGSEGV); -} - -static inline void die_if_kernel(const char * str, struct pt_regs * regs, long err) -{ - if (!user_mode(regs)) - die(str, regs, err); -} - -static void die_if_no_fixup(const char * str, struct pt_regs * regs, long err) -{ - if (!user_mode(regs)) { - const struct exception_table_entry *fixup; - fixup = search_exception_tables(regs->pc); - if (fixup) { - regs->pc = fixup->fixup; - return; - } - die(str, regs, err); - } -} - DO_ERROR(13, SIGILL, "illegal slot instruction", illegal_slot_inst, current) DO_ERROR(87, SIGSEGV, "address error (exec)", address_error_exec, current) -- cgit v1.2.3-55-g7522