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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 14:38:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 14:40:31 -0700
commite3d2f927f788adcdabc42f8a1616f6cc56c53bbe (patch)
treeff051e33cff49e23f4c4ef84360f22cf7a1998c9 /arch/parisc/include/asm/bug.h
parenta9b6148d25f15ddfe9d7a7f3e526fdb64e7cf7da (diff)
parent81e192d6ce303b6792aa38ff35f41a1a7357f23a (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: parisc: convert to generic compat_sys_ptrace parisc: add rtc platform driver parisc: initialize unwinder much earlier parisc: add new syscalls parisc: hijack jump to start_kernel parisc: add pdc_coproc_cfg_unlocked and set_firmware_width_unlocked parisc: move include/asm-parisc to arch/parisc/include/asm parisc: move pdc_result to real2.S parisc: unify CCIO_COLLECT_STATS implementation parisc: add arch/parisc/kernel/.gitignore parisc: ropes.h - fix <asm-parisc/*> -> <asm/*> parisc: parisc-agp - fix <asm-parisc/*> -> <asm/*> Resolve remove/rename conflict: include/asm-parisc/a.out.h is no longer relevant.
Diffstat (limited to 'arch/parisc/include/asm/bug.h')
-rw-r--r--arch/parisc/include/asm/bug.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
new file mode 100644
index 00000000000..8cfc553fc83
--- /dev/null
+++ b/arch/parisc/include/asm/bug.h
@@ -0,0 +1,92 @@
+#ifndef _PARISC_BUG_H
+#define _PARISC_BUG_H
+
+/*
+ * Tell the user there is some problem.
+ * The offending file and line are encoded in the __bug_table section.
+ */
+
+#ifdef CONFIG_BUG
+#define HAVE_ARCH_BUG
+#define HAVE_ARCH_WARN_ON
+
+/* the break instruction is used as BUG() marker. */
+#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
+#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */
+
+#if defined(CONFIG_64BIT)
+#define ASM_WORD_INSN ".dword\t"
+#else
+#define ASM_WORD_INSN ".word\t"
+#endif
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define BUG() \
+ do { \
+ asm volatile("\n" \
+ "1:\t" PARISC_BUG_BREAK_ASM "\n" \
+ "\t.pushsection __bug_table,\"a\"\n" \
+ "2:\t" ASM_WORD_INSN "1b, %c0\n" \
+ "\t.short %c1, %c2\n" \
+ "\t.org 2b+%c3\n" \
+ "\t.popsection" \
+ : : "i" (__FILE__), "i" (__LINE__), \
+ "i" (0), "i" (sizeof(struct bug_entry)) ); \
+ for(;;) ; \
+ } while(0)
+
+#else
+#define BUG() \
+ do { \
+ asm volatile(PARISC_BUG_BREAK_ASM : : ); \
+ for(;;) ; \
+ } while(0)
+#endif
+
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+#define __WARN() \
+ do { \
+ asm volatile("\n" \
+ "1:\t" PARISC_BUG_BREAK_ASM "\n" \
+ "\t.pushsection __bug_table,\"a\"\n" \
+ "2:\t" ASM_WORD_INSN "1b, %c0\n" \
+ "\t.short %c1, %c2\n" \
+ "\t.org 2b+%c3\n" \
+ "\t.popsection" \
+ : : "i" (__FILE__), "i" (__LINE__), \
+ "i" (BUGFLAG_WARNING), \
+ "i" (sizeof(struct bug_entry)) ); \
+ } while(0)
+#else
+#define __WARN() \
+ do { \
+ asm volatile("\n" \
+ "1:\t" PARISC_BUG_BREAK_ASM "\n" \
+ "\t.pushsection __bug_table,\"a\"\n" \
+ "2:\t" ASM_WORD_INSN "1b\n" \
+ "\t.short %c0\n" \
+ "\t.org 2b+%c1\n" \
+ "\t.popsection" \
+ : : "i" (BUGFLAG_WARNING), \
+ "i" (sizeof(struct bug_entry)) ); \
+ } while(0)
+#endif
+
+
+#define WARN_ON(x) ({ \
+ int __ret_warn_on = !!(x); \
+ if (__builtin_constant_p(__ret_warn_on)) { \
+ if (__ret_warn_on) \
+ __WARN(); \
+ } else { \
+ if (unlikely(__ret_warn_on)) \
+ __WARN(); \
+ } \
+ unlikely(__ret_warn_on); \
+})
+
+#endif
+
+#include <asm-generic/bug.h>
+#endif
+