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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 17:38:14 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 17:40:31 -0400
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 000000000000..8cfc553fc837
--- /dev/null
+++ b/arch/parisc/include/asm/bug.h
@@ -0,0 +1,92 @@
1#ifndef _PARISC_BUG_H
2#define _PARISC_BUG_H
3
4/*
5 * Tell the user there is some problem.
6 * The offending file and line are encoded in the __bug_table section.
7 */
8
9#ifdef CONFIG_BUG
10#define HAVE_ARCH_BUG
11#define HAVE_ARCH_WARN_ON
12
13/* the break instruction is used as BUG() marker. */
14#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
15#define PARISC_BUG_BREAK_INSN 0x03ffe01f /* PARISC_BUG_BREAK_ASM */
16
17#if defined(CONFIG_64BIT)
18#define ASM_WORD_INSN ".dword\t"
19#else
20#define ASM_WORD_INSN ".word\t"
21#endif
22
23#ifdef CONFIG_DEBUG_BUGVERBOSE
24#define BUG() \
25 do { \
26 asm volatile("\n" \
27 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
28 "\t.pushsection __bug_table,\"a\"\n" \
29 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
30 "\t.short %c1, %c2\n" \
31 "\t.org 2b+%c3\n" \
32 "\t.popsection" \
33 : : "i" (__FILE__), "i" (__LINE__), \
34 "i" (0), "i" (sizeof(struct bug_entry)) ); \
35 for(;;) ; \
36 } while(0)
37
38#else
39#define BUG() \
40 do { \
41 asm volatile(PARISC_BUG_BREAK_ASM : : ); \
42 for(;;) ; \
43 } while(0)
44#endif
45
46#ifdef CONFIG_DEBUG_BUGVERBOSE
47#define __WARN() \
48 do { \
49 asm volatile("\n" \
50 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
51 "\t.pushsection __bug_table,\"a\"\n" \
52 "2:\t" ASM_WORD_INSN "1b, %c0\n" \
53 "\t.short %c1, %c2\n" \
54 "\t.org 2b+%c3\n" \
55 "\t.popsection" \
56 : : "i" (__FILE__), "i" (__LINE__), \
57 "i" (BUGFLAG_WARNING), \
58 "i" (sizeof(struct bug_entry)) ); \
59 } while(0)
60#else
61#define __WARN() \
62 do { \
63 asm volatile("\n" \
64 "1:\t" PARISC_BUG_BREAK_ASM "\n" \
65 "\t.pushsection __bug_table,\"a\"\n" \
66 "2:\t" ASM_WORD_INSN "1b\n" \
67 "\t.short %c0\n" \
68 "\t.org 2b+%c1\n" \
69 "\t.popsection" \
70 : : "i" (BUGFLAG_WARNING), \
71 "i" (sizeof(struct bug_entry)) ); \
72 } while(0)
73#endif
74
75
76#define WARN_ON(x) ({ \
77 int __ret_warn_on = !!(x); \
78 if (__builtin_constant_p(__ret_warn_on)) { \
79 if (__ret_warn_on) \
80 __WARN(); \
81 } else { \
82 if (unlikely(__ret_warn_on)) \
83 __WARN(); \
84 } \
85 unlikely(__ret_warn_on); \
86})
87
88#endif
89
90#include <asm-generic/bug.h>
91#endif
92