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| author | Frantisek Hrbata <fhrbata@redhat.com> | 2013-11-12 15:11:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 12:09:34 +0900 |
| commit | 5f41ea0386a53414d688cfcaa321a78310e5f7c1 (patch) | |
| tree | 8f9d3b7020b5ee3b31445b993d16cad8f7736584 /kernel/gcov/base.c | |
| parent | 8cbce376e3fdf4a21f59365aefbb52eac3c2e312 (diff) | |
| download | linux-0-day-5f41ea0386a53414d688cfcaa321a78310e5f7c1.tar.gz linux-0-day-5f41ea0386a53414d688cfcaa321a78310e5f7c1.tar.xz | |
gcov: add support for gcc 4.7 gcov format
The gcov in-memory format changed in gcc 4.7. The biggest change, which
requires this special implementation, is that gcov_info no longer contains
array of counters for each counter type for all functions and gcov_fn_info
is not used for mapping of function's counters to these arrays(offset).
Now each gcov_fn_info contans it's counters, which makes things a little
bit easier.
This is heavily based on the previous gcc_3_4.c implementation and patches
provided by Peter Oberparleiter. Specially the buffer gcda implementation
for iterator.
[akpm@linux-foundation.org: use kmemdup() and kcalloc()]
[oberpar@linux.vnet.ibm.com: gcc_4_7.c needs vmalloc.h]
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gospodarek <agospoda@redhat.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 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c index 912576a671d89..f45b75b713c0e 100644 --- a/kernel/gcov/base.c +++ b/kernel/gcov/base.c @@ -79,6 +79,12 @@ void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters) } EXPORT_SYMBOL(__gcov_merge_delta); +void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters) +{ + /* Unused. */ +} +EXPORT_SYMBOL(__gcov_merge_ior); + /** * gcov_enable_events - enable event reporting through gcov_event() * |