diff options
| author | Greg Hackmann <ghackmann@android.com> | 2019-05-14 15:45:25 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 19:52:51 -0700 |
| commit | 826eba0d77bc74c4d1c611374b76abfe251e8538 (patch) | |
| tree | 14c87fc4cce352127d798701051f27b96cd6cdf3 /kernel/gcov/base.c | |
| parent | ce528c4c20f94b48781a9bb9e32435d2b9782995 (diff) | |
gcov: clang: move common GCC code into gcc_base.c
Patch series "gcov: add Clang support", v4.
This patch (of 3):
base.c contains a few callbacks specific to GCC's gcov implementation.
Move these into their own module in preparation for Clang support.
Link: http://lkml.kernel.org/r/20190318025411.98014-2-trong@android.com
Signed-off-by: Greg Hackmann <ghackmann@android.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Tri Vo <trong@android.com>
Tested-by: Trilok Soni <tsoni@quicinc.com>
Tested-by: Prasad Sodagudi <psodagud@quicinc.com>
Tested-by: Tri Vo <trong@android.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Petri Gynther <pgynther@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/gcov/base.c')
| -rw-r--r-- | kernel/gcov/base.c | 84 |
1 files changed, 2 insertions, 82 deletions
diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c index 9c7c8d5c18f2..799d42072727 100644 --- a/kernel/gcov/base.c +++ b/kernel/gcov/base.c @@ -22,88 +22,8 @@ #include <linux/sched.h> #include "gcov.h" -static int gcov_events_enabled; -static DEFINE_MUTEX(gcov_lock); - -/* - * __gcov_init is called by gcc-generated constructor code for each object - * file compiled with -fprofile-arcs. - */ -void __gcov_init(struct gcov_info *info) -{ - static unsigned int gcov_version; - - mutex_lock(&gcov_lock); - if (gcov_version == 0) { - gcov_version = gcov_info_version(info); - /* - * Printing gcc's version magic may prove useful for debugging - * incompatibility reports. - */ - pr_info("version magic: 0x%x\n", gcov_version); - } - /* - * Add new profiling data structure to list and inform event - * listener. - */ - gcov_info_link(info); - if (gcov_events_enabled) - gcov_event(GCOV_ADD, info); - mutex_unlock(&gcov_lock); -} -EXPORT_SYMBOL(__gcov_init); - -/* - * These functions may be referenced by gcc-generated profiling code but serve - * no function for kernel profiling. - */ -void __gcov_flush(void) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_flush); - -void __gcov_merge_add(gcov_type *counters, unsigned int n_counters) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_merge_add); - -void __gcov_merge_single(gcov_type *counters, unsigned int n_counters) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_merge_single); - -void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_merge_delta); - -void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_merge_ior); - -void __gcov_merge_time_profile(gcov_type *counters, unsigned int n_counters) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_merge_time_profile); - -void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_merge_icall_topn); - -void __gcov_exit(void) -{ - /* Unused. */ -} -EXPORT_SYMBOL(__gcov_exit); +int gcov_events_enabled; +DEFINE_MUTEX(gcov_lock); /** * gcov_enable_events - enable event reporting through gcov_event() |