diff options
Diffstat (limited to 'arch/i386')
| -rw-r--r-- | arch/i386/Kconfig | 5 | ||||
| -rw-r--r-- | arch/i386/kernel/module.c | 4 | ||||
| -rw-r--r-- | arch/i386/kernel/traps.c | 41 | ||||
| -rw-r--r-- | arch/i386/kernel/vmlinux.lds.S | 2 |
4 files changed, 21 insertions, 31 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index ea70359b02d..c2362c7ba74 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -49,6 +49,11 @@ config GENERIC_IOMAP bool default y +config GENERIC_BUG + bool + default y + depends on BUG + config GENERIC_HWEIGHT bool default y diff --git a/arch/i386/kernel/module.c b/arch/i386/kernel/module.c index d7d9c8b23f7..3db0a5442eb 100644 --- a/arch/i386/kernel/module.c +++ b/arch/i386/kernel/module.c @@ -21,6 +21,7 @@ #include <linux/fs.h> #include <linux/string.h> #include <linux/kernel.h> +#include <linux/bug.h> #if 0 #define DEBUGP printk @@ -141,10 +142,11 @@ int module_finalize(const Elf_Ehdr *hdr, apply_paravirt(pseg, pseg + para->sh_size); } - return 0; + return module_bug_finalize(hdr, sechdrs, me); } void module_arch_cleanup(struct module *mod) { alternatives_smp_module_del(mod); + module_bug_cleanup(mod); } diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 68de48e498c..2b30dbf8d11 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -30,6 +30,7 @@ #include <linux/unwind.h> #include <linux/uaccess.h> #include <linux/nmi.h> +#include <linux/bug.h> #ifdef CONFIG_EISA #include <linux/ioport.h> @@ -420,43 +421,22 @@ void show_registers(struct pt_regs *regs) printk("\n"); } -static void handle_BUG(struct pt_regs *regs) +int is_valid_bugaddr(unsigned long eip) { - unsigned long eip = regs->eip; unsigned short ud2; if (eip < PAGE_OFFSET) - return; + return 0; if (probe_kernel_address((unsigned short *)eip, ud2)) - return; - if (ud2 != 0x0b0f) - return; - - printk(KERN_EMERG "------------[ cut here ]------------\n"); - -#ifdef CONFIG_DEBUG_BUGVERBOSE - do { - unsigned short line; - char *file; - char c; - - if (probe_kernel_address((unsigned short *)(eip + 2), line)) - break; - if (probe_kernel_address((char **)(eip + 4), file) || - (unsigned long)file < PAGE_OFFSET || - probe_kernel_address(file, c)) - file = "<bad filename>"; + return 0; - printk(KERN_EMERG "kernel BUG at %s:%d!\n", file, line); - return; - } while (0); -#endif - printk(KERN_EMERG "Kernel BUG at [verbose debug info unavailable]\n"); + return ud2 == 0x0b0f; } -/* This is gone through when something in the kernel - * has done something bad and is about to be terminated. -*/ +/* + * This is gone through when something in the kernel has done something bad and + * is about to be terminated. + */ void die(const char * str, struct pt_regs * regs, long err) { static struct { @@ -488,7 +468,8 @@ void die(const char * str, struct pt_regs * regs, long err) unsigned long esp; unsigned short ss; - handle_BUG(regs); + report_bug(regs->eip); + printk(KERN_EMERG "%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter); #ifdef CONFIG_PREEMPT printk(KERN_EMERG "PREEMPT "); diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S index 56e6ad5cb04..16d3c7133ad 100644 --- a/arch/i386/kernel/vmlinux.lds.S +++ b/arch/i386/kernel/vmlinux.lds.S @@ -57,6 +57,8 @@ SECTIONS RODATA + BUG_TABLE + . = ALIGN(4); .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { __tracedata_start = .; |