X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fkprobes.h;h=b0e40ff32ee02208378657196d294584b14f3c9f;hb=723e98b79c5f2dd97ce559506362844b1a086f80;hp=2dafa376a63f60f89b3697a2034c943583a1de87;hpb=b4a9071af62f95dc6d22040a0b37ac7225ce4d54;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index 2dafa376a63..b0e40ff32ee 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -44,6 +44,7 @@ typedef unsigned int kprobe_opcode_t;
 #define IS_TDI(instr)		(((instr) & 0xfc000000) == 0x08000000)
 #define IS_TWI(instr)		(((instr) & 0xfc000000) == 0x0c000000)
 
+#ifdef CONFIG_PPC64
 /*
  * 64bit powerpc uses function descriptors.
  * Handle cases where:
@@ -63,13 +64,23 @@ typedef unsigned int kprobe_opcode_t;
 				addr = *(kprobe_opcode_t **)addr;	\
 		} else if (name[0] != '.')				\
 			addr = *(kprobe_opcode_t **)addr;		\
+	} else {							\
+		char dot_name[KSYM_NAME_LEN+1];				\
+		dot_name[0] = '.';					\
+		dot_name[1] = '\0';					\
+		strncat(dot_name, name, KSYM_NAME_LEN);			\
+		addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \
 	}								\
 }
 
 #define JPROBE_ENTRY(pentry)	(kprobe_opcode_t *)((func_descr_t *)pentry)
-
 #define is_trap(instr)	(IS_TW(instr) || IS_TD(instr) || \
 			IS_TWI(instr) || IS_TDI(instr))
+#else
+/* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */
+#define JPROBE_ENTRY(pentry)	(kprobe_opcode_t *)(pentry)
+#define is_trap(instr)	(IS_TW(instr) || IS_TWI(instr))
+#endif
 
 #define ARCH_SUPPORTS_KRETPROBES
 #define  ARCH_INACTIVE_KPROBE_COUNT 1
@@ -82,6 +93,11 @@ extern void arch_remove_kprobe(struct kprobe *p);
 struct arch_specific_insn {
 	/* copy of original instruction */
 	kprobe_opcode_t *insn;
+	/*
+	 * Set in kprobes code, initially to 0. If the instruction can be
+	 * eumulated, this is set to 1, if not, to -1.
+	 */
+	int boostable;
 };
 
 struct prev_kprobe {
@@ -100,5 +116,6 @@ struct kprobe_ctlblk {
 
 extern int kprobe_exceptions_notify(struct notifier_block *self,
 					unsigned long val, void *data);
+extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 #endif /* __KERNEL__ */
 #endif	/* _ASM_POWERPC_KPROBES_H */