/* SPDX-License-Identifier: GPL-2.0 */ #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 [31mCONFIG_BUG[0m #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([31mCONFIG_64BIT[0m) #define ASM_WORD_INSN ".dword\t" #else #define ASM_WORD_INSN ".word\t" #endif #ifdef [31mCONFIG_DEBUG_BUGVERBOSE[0m #define BUG() \ do { \ asm volatile("\n" \ "1:\t" PARISC_BUG_BREAK_ASM "\n" \ "\t.pushsection __bug_table,\"aw\"\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 [31mCONFIG_DEBUG_BUGVERBOSE[0m #define __WARN_FLAGS(flags) \ do { \ asm volatile("\n" \ "1:\t" PARISC_BUG_BREAK_ASM "\n" \ "\t.pushsection __bug_table,\"aw\"\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|(flags)), \ "i" (sizeof(struct bug_entry)) ); \ } while(0) #else #define __WARN_FLAGS(flags) \ do { \ asm volatile("\n" \ "1:\t" PARISC_BUG_BREAK_ASM "\n" \ "\t.pushsection __bug_table,\"aw\"\n" \ "2:\t" ASM_WORD_INSN "1b\n" \ "\t.short %c0\n" \ "\t.org 2b+%c1\n" \ "\t.popsection" \ : : "i" (BUGFLAG_WARNING|(flags)), \ "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 |