diff options
| -rw-r--r-- | scripts/recordmcount.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index 7f7f7180fe24..26e1271259ba 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -313,12 +313,30 @@ do_file(char const *const fname) int main(int argc, char const *argv[]) { + const char ftrace[] = "kernel/trace/ftrace.o"; + int ftrace_size = sizeof(ftrace) - 1; int n_error = 0; /* gcc-4.3.0 false positive complaint */ - if (argc <= 1) + + if (argc <= 1) { fprintf(stderr, "usage: recordmcount file.o...\n"); - else /* Process each file in turn, allowing deep failure. */ + return 0; + } + + /* Process each file in turn, allowing deep failure. */ for (--argc, ++argv; 0 < argc; --argc, ++argv) { int const sjval = setjmp(jmpenv); + int len; + + /* + * The file kernel/trace/ftrace.o references the mcount + * function but does not call it. Since ftrace.o should + * not be traced anyway, we just skip it. + */ + len = strlen(argv[0]); + if (len >= ftrace_size && + strcmp(argv[0] + (len - ftrace_size), ftrace) == 0) + continue; + switch (sjval) { default: { fprintf(stderr, "internal error: %s\n", argv[0]); |