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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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#include <linux/linkage.h>#include <linux/types.h>#include <asm/opcodes.h>
/* * Use a suitable undefined instruction to use for ARM/Thumb2 bug handling. * We need to be careful not to conflict with those used by other modules and * the register_undef_hook() system. */#ifdef CONFIG_THUMB2_KERNEL#define BUG_INSTR_VALUE 0xde02#define BUG_INSTR(__value) __inst_thumb16(__value)#else#define BUG_INSTR_VALUE 0xe7f001f2#define BUG_INSTR(__value) __inst_arm(__value)#endif
#define BUG() _BUG(__FILE__, __LINE__, BUG_INSTR_VALUE)#define _BUG(file, line, value) __BUG(file, line, value)
#ifdef CONFIG_DEBUG_BUGVERBOSE
/* * The extra indirection is to ensure that the __FILE__ string comes through * OK. Many version of gcc do not support the asm %c parameter which would be * preferable to this unpleasantness. We use mergeable string sections to * avoid multiple copies of the string appearing in the kernel image. */
#define __BUG(__file, __line, __value) \do { \ asm volatile("1:\t" BUG_INSTR(__value) "\n" \ ".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \ "2:\t.asciz " #__file "\n" \ ".popsection\n" \ ".pushsection __bug_table,\"aw\"\n" \ ".align 2\n" \ "3:\t.word 1b, 2b\n" \ "\t.hword " #__line ", 0\n" \ ".popsection"); \ unreachable(); \} while (0)
#else
#define __BUG(__file, __line, __value) \do { \ asm volatile(BUG_INSTR(__value) "\n"); \ unreachable(); \} while (0)#endif /* CONFIG_DEBUG_BUGVERBOSE */
#define HAVE_ARCH_BUG
#include <asm-generic/bug.h>
struct pt_regs;void die(const char *msg, struct pt_regs *regs, int err);
void arm_notify_die(const char *str, struct pt_regs *regs, int signo, int si_code, void __user *addr, unsigned long err, unsigned long trap);
#ifdef CONFIG_ARM_LPAE#define FAULT_CODE_ALIGNMENT 33#define FAULT_CODE_DEBUG 34#else#define FAULT_CODE_ALIGNMENT 1#define FAULT_CODE_DEBUG 2#endif
void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *), int sig, int code, const char *name);
void hook_ifault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *), int sig, int code, const char *name);
extern asmlinkage void c_backtrace(unsigned long fp, int pmode, const char *loglvl);
struct mm_struct;void show_pte(const char *lvl, struct mm_struct *mm, unsigned long addr);extern void __show_regs(struct pt_regs *);extern void __show_regs_alloc_free(struct pt_regs *regs);
#endif