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author | Paul Mackerras <paulus@samba.org> | 2007-04-30 12:38:01 +1000 |
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committer | Paul Mackerras <paulus@samba.org> | 2007-04-30 12:38:01 +1000 |
commit | 49e1900d4cc2e7bcecb681fe60f0990bec2dcce8 (patch) | |
tree | 253801ebf57e0a23856a2c7be129c2c178f62fdf /include/asm-s390/bug.h | |
parent | [POWERPC] remove kernel module option for booke wdt (diff) | |
parent | Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 (diff) | |
download | linux-dev-49e1900d4cc2e7bcecb681fe60f0990bec2dcce8.tar.xz linux-dev-49e1900d4cc2e7bcecb681fe60f0990bec2dcce8.zip |
Merge branch 'linux-2.6' into for-2.6.22
Diffstat (limited to 'include/asm-s390/bug.h')
-rw-r--r-- | include/asm-s390/bug.h | 69 |
1 files changed, 56 insertions, 13 deletions
diff --git a/include/asm-s390/bug.h b/include/asm-s390/bug.h index 876898363944..838684dc6d35 100644 --- a/include/asm-s390/bug.h +++ b/include/asm-s390/bug.h @@ -1,27 +1,70 @@ -#ifndef _S390_BUG_H -#define _S390_BUG_H +#ifndef _ASM_S390_BUG_H +#define _ASM_S390_BUG_H #include <linux/kernel.h> #ifdef CONFIG_BUG -static inline __attribute__((noreturn)) void __do_illegal_op(void) -{ -#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) - __builtin_trap(); +#ifdef CONFIG_64BIT +#define S390_LONG ".quad" #else - asm volatile(".long 0"); +#define S390_LONG ".long" #endif -} -#define BUG() do { \ - printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \ - __do_illegal_op(); \ +#ifdef CONFIG_DEBUG_BUGVERBOSE + +#define __EMIT_BUG(x) do { \ + asm volatile( \ + "0: j 0b+2\n" \ + "1:\n" \ + ".section .rodata.str,\"aMS\",@progbits,1\n" \ + "2: .asciz \""__FILE__"\"\n" \ + ".previous\n" \ + ".section __bug_table,\"a\"\n" \ + "3:\t" S390_LONG "\t1b,2b\n" \ + " .short %0,%1\n" \ + " .org 3b+%2\n" \ + ".previous\n" \ + : : "i" (__LINE__), \ + "i" (x), \ + "i" (sizeof(struct bug_entry))); \ } while (0) +#else /* CONFIG_DEBUG_BUGVERBOSE */ + +#define __EMIT_BUG(x) do { \ + asm volatile( \ + "0: j 0b+2\n" \ + "1:\n" \ + ".section __bug_table,\"a\"\n" \ + "2:\t" S390_LONG "\t1b\n" \ + " .short %0\n" \ + " .org 2b+%1\n" \ + ".previous\n" \ + : : "i" (x), \ + "i" (sizeof(struct bug_entry))); \ +} while (0) + +#endif /* CONFIG_DEBUG_BUGVERBOSE */ + +#define BUG() __EMIT_BUG(0) + +#define WARN_ON(x) ({ \ + typeof(x) __ret_warn_on = (x); \ + if (__builtin_constant_p(__ret_warn_on)) { \ + if (__ret_warn_on) \ + __EMIT_BUG(BUGFLAG_WARNING); \ + } else { \ + if (unlikely(__ret_warn_on)) \ + __EMIT_BUG(BUGFLAG_WARNING); \ + } \ + unlikely(__ret_warn_on); \ +}) + #define HAVE_ARCH_BUG -#endif +#define HAVE_ARCH_WARN_ON +#endif /* CONFIG_BUG */ #include <asm-generic/bug.h> -#endif +#endif /* _ASM_S390_BUG_H */ |