diff options
Diffstat (limited to 'include/asm-powerpc/kprobes.h')
| -rw-r--r-- | include/asm-powerpc/kprobes.h | 15 |
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) |