bug.h

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#ifndef _PARISC_BUG_H
#define _PARISC_BUG_H

#include <linux/kernel.h>   /* for BUGFLAG_TAINT */

/*
 * 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)) ); \
        unreachable();                      \
    } while(0)

#else
#define BUG()                               \
    do {                                \
        asm volatile(PARISC_BUG_BREAK_ASM : : );        \
        unreachable();                      \
    } while(0)
#endif

#ifdef CONFIG_DEBUG_BUGVERBOSE
#define __WARN_TAINT(taint)                     \
    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_TAINT(taint)),        \
                 "i" (sizeof(struct bug_entry)) );      \
    } while(0)
#else
#define __WARN_TAINT(taint)                     \
    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_TAINT(taint)),        \
                 "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