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Diffstat (limited to 'kernel/trace/trace_probe_tmpl.h')
-rw-r--r--kernel/trace/trace_probe_tmpl.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/trace/trace_probe_tmpl.h b/kernel/trace/trace_probe_tmpl.h
index bd3e755434eb..00707630788d 100644
--- a/kernel/trace/trace_probe_tmpl.h
+++ b/kernel/trace/trace_probe_tmpl.h
@@ -98,6 +98,26 @@ fetch_store_symstring(unsigned long addr, void *dest, void *base)
return sprint_symbol(__dest, addr);
}
+/* common part of process_fetch_insn*/
+static nokprobe_inline int
+process_common_fetch_insn(struct fetch_insn *code, unsigned long *val)
+{
+ switch (code->op) {
+ case FETCH_OP_IMM:
+ *val = code->immediate;
+ break;
+ case FETCH_OP_COMM:
+ *val = (unsigned long)current->comm;
+ break;
+ case FETCH_OP_DATA:
+ *val = (unsigned long)code->data;
+ break;
+ default:
+ return -EILSEQ;
+ }
+ return 0;
+}
+
/* From the 2nd stage, routine is same */
static nokprobe_inline int
process_fetch_insn_bottom(struct fetch_insn *code, unsigned long val,