AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

kcsan: Make reporting aware of KCSAN tests

Browse Source 
Reporting hides KCSAN runtime functions in the stack trace, with
filtering done based on function names. Currently this included all
functions (or modules) that would match "kcsan_". Make the filter aware
of KCSAN tests, which contain "kcsan_test", and are no longer skipped in
the report.

This is in preparation for adding a KCSAN test module.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Marco Elver 2020-04-10 18:44:18 +02:00 committed by Paul E. McKenney
parent f770ed10a9
commit cdb9b07d8c
1 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
kernel/kcsan/report.c
View File

@ -262,16 +262,32 @@ static const char *get_thread_desc(int task_id)
static int get_stack_skipnr(const unsigned long stack_entries[], int num_entries)
{
char buf[64];
int len;
int skip = 0;
char *cur;
int len, skip;
for (; skip < num_entries; ++skip) {
for (skip = 0; skip < num_entries; ++skip) {
len = scnprintf(buf, sizeof(buf), "%ps", (void *)stack_entries[skip]);
if (!strnstr(buf, "csan_", len) &&
!strnstr(buf, "tsan_", len) &&
!strnstr(buf, "_once_size", len))
/* Never show tsan_* or {read,write}_once_size. */
if (strnstr(buf, "tsan_", len) ||
strnstr(buf, "_once_size", len))
continue;
cur = strnstr(buf, "kcsan_", len);
if (cur) {
cur += sizeof("kcsan_") - 1;
if (strncmp(cur, "test", sizeof("test") - 1))
continue; /* KCSAN runtime function. */
/* KCSAN related test. */
}
/*
* No match for runtime functions -- @skip entries to skip to
* get to first frame of interest.
*/
break;
}
return skip;
}