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-rw-r--r--include/asm-powerpc/kprobes.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index 1ef54be6abf..2dafa376a63 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -47,16 +47,23 @@ typedef unsigned int kprobe_opcode_t;
/*
* 64bit powerpc uses function descriptors.
* Handle cases where:
- * - User passes a <.symbol>
- * - User passes a <symbol>
+ * - User passes a <.symbol> or <module:.symbol>
+ * - User passes a <symbol> or <module:symbol>
* - User passes a non-existant symbol, kallsyms_lookup_name
* returns 0. Don't deref the NULL pointer in that case
*/
#define kprobe_lookup_name(name, addr) \
{ \
addr = (kprobe_opcode_t *)kallsyms_lookup_name(name); \
- if (!(name[0] == '.') && addr) \
- addr = *(kprobe_opcode_t **)addr; \
+ if (addr) { \
+ char *colon; \
+ if ((colon = strchr(name, ':')) != NULL) { \
+ colon++; \
+ if (*colon != '\0' && *colon != '.') \
+ addr = *(kprobe_opcode_t **)addr; \
+ } else if (name[0] != '.') \
+ addr = *(kprobe_opcode_t **)addr; \
+ } \
}
#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)((func_descr_t *)pentry)