X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-i386%2Fkprobes.h;h=57d157c5cf89a166ca27f6ec1d0bd3896bc47a68;hb=789e7dc8ee6cfb7928208b077d0799d81196e9bb;hp=8b6d3a90cd78942f1a48bf1e0625f6df22e77e53;hpb=62778ba1aa2589dc78c36a32edc6f5a6ccaf50c6;p=linux-2.6-omap-h63xx.git diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h index 8b6d3a90cd7..57d157c5cf8 100644 --- a/include/asm-i386/kprobes.h +++ b/include/asm-i386/kprobes.h @@ -27,10 +27,14 @@ #include #include +#define __ARCH_WANT_KPROBES_INSN_SLOT + +struct kprobe; struct pt_regs; typedef u8 kprobe_opcode_t; #define BREAKPOINT_INSTRUCTION 0xcc +#define RELATIVEJUMP_INSTRUCTION 0xe9 #define MAX_INSN_SIZE 16 #define MAX_STACK_SIZE 64 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ @@ -41,14 +45,37 @@ typedef u8 kprobe_opcode_t; #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry #define ARCH_SUPPORTS_KRETPROBES +void arch_remove_kprobe(struct kprobe *p); void kretprobe_trampoline(void); /* Architecture specific copy of original instruction*/ struct arch_specific_insn { /* copy of the original instruction */ - kprobe_opcode_t insn[MAX_INSN_SIZE]; + kprobe_opcode_t *insn; + /* + * If this flag is not 0, this kprobe can be boost when its + * post_handler and break_handler is not set. + */ + int boostable; +}; + +struct prev_kprobe { + struct kprobe *kp; + unsigned long status; + unsigned long old_eflags; + unsigned long saved_eflags; }; +/* per-cpu kprobe control block */ +struct kprobe_ctlblk { + unsigned long kprobe_status; + unsigned long kprobe_old_eflags; + unsigned long kprobe_saved_eflags; + long *jprobe_saved_esp; + struct pt_regs jprobe_saved_regs; + kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; + struct prev_kprobe prev_kprobe; +}; /* trap3/1 are intr gates for kprobes. So, restore the status of IF, * if necessary, before executing the original int3/1 (trap) handler. @@ -59,14 +86,6 @@ static inline void restore_interrupts(struct pt_regs *regs) local_irq_enable(); } -#ifdef CONFIG_KPROBES extern int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); -#else /* !CONFIG_KPROBES */ -static inline int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data) -{ - return 0; -} -#endif #endif /* _ASM_KPROBES_H */