linux-stable.git/kernel/gcov, branch v3.16.67

gcov: support GCC 7.1

2018-11-20T18:06:00+00:00

commit 05384213436ab690c46d9dfec706b80ef8d671ab upstream.

Starting from GCC 7.1, __gcov_exit is a new symbol expected to be
implemented in a profiling runtime.

[akpm@linux-foundation.org: coding-style fixes]
[mliska@suse.cz: v2]
  Link: http://lkml.kernel.org/r/e63a3c59-0149-c97e-4084-20ca8f146b26@suse.cz
Link: http://lkml.kernel.org/r/8c4084fa-3885-29fe-5fc4-0d4ca199c785@suse.cz
Signed-off-by: Martin Liska 
Acked-by: Peter Oberparleiter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Cc: Arnd Bergmann 
Signed-off-by: Ben Hutchings

gcov: add support for gcc version >= 6

2018-11-20T18:06:00+00:00

commit d02038f972538b93011d78c068f44514fbde0a8c upstream.

Link: http://lkml.kernel.org/r/20160701130914.GA23225@styxhp
Signed-off-by: Florian Meier 
Reviewed-by: Peter Oberparleiter 
Tested-by: Peter Oberparleiter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Cc: Arnd Bergmann 
Signed-off-by: Ben Hutchings

gcov: add support for GCC 5.1

2018-11-20T18:06:00+00:00

commit 3e44c471a2dab210f7e9b1e5f7d4d54d52df59eb upstream.

Fix kernel gcov support for GCC 5.1.  Similar to commit a992bf836f9
("gcov: add support for GCC 4.9"), this patch takes into account the
existence of a new gcov counter (see gcc's gcc/gcov-counter.def.)

Firstly, it increments GCOV_COUNTERS (to 10), which makes the data
structure struct gcov_info compatible with GCC 5.1.

Secondly, a corresponding counter function __gcov_merge_icall_topn (Top N
value tracking for indirect calls) is included in base.c with the other
gcov counters unused for kernel profiling.

Signed-off-by: Lorenzo Stoakes 
Cc: Andrey Ryabinin 
Cc: Yuan Pengfei 
Tested-by: Peter Oberparleiter 
Reviewed-by: Peter Oberparleiter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Cc: Arnd Bergmann 
Signed-off-by: Ben Hutchings

gcov: add support for GCC 4.9

2014-06-10T22:34:46+00:00

This patch handles the gcov-related changes in GCC 4.9:

  A new counter (time profile) is added. The total number is 9 now.

  A new profile merge function __gcov_merge_time_profile is added.

See gcc/gcov-io.h and libgcc/libgcov-merge.c

For the first change, the layout of struct gcov_info is affected.

For the second one, a dummy function is added to kernel/gcov/base.c
similarly.

Signed-off-by: Yuan Pengfei 
Acked-by: Peter Oberparleiter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gcov: reuse kbasename helper

2013-11-13T03:09:34+00:00

To get name of the file from a pathname let's use kbasename() helper.

Signed-off-by: Andy Shevchenko 
Cc: Jingoo Han 
Cc: Peter Oberparleiter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kernel/gcov/fs.c: use pr_warn()

2013-11-13T03:09:34+00:00

pr_warning() is deprecated in favor of pr_warn()

Cc: Andy Gospodarek 
Cc: Arnd Bergmann 
Cc: Frantisek Hrbata 
Cc: Jan Stancek 
Cc: Kees Cook 
Cc: Peter Oberparleiter 
Cc: Rusty Russell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gcov: compile specific gcov implementation based on gcc version

2013-11-13T03:09:34+00:00

Compile the correct gcov implementation file for the specific gcc version.

Signed-off-by: Frantisek Hrbata 
Cc: Jan Stancek 
Cc: Kees Cook 
Acked-by: Peter Oberparleiter 
Cc: Rusty Russell 
Cc: Arnd Bergmann 
Cc: Andy Gospodarek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gcov: add support for gcc 4.7 gcov format

2013-11-13T03:09:34+00:00

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 
Cc: Jan Stancek 
Cc: Kees Cook 
Reviewed-by: Peter Oberparleiter 
Cc: Rusty Russell 
Cc: Arnd Bergmann 
Cc: Andy Gospodarek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

gcov: move gcov structs definitions to a gcc version specific file

2013-11-13T03:09:34+00:00

Since also the gcov structures(gcov_info, gcov_fn_info, gcov_ctr_info) can
change between gcc releases, as shown in gcc 4.7, they cannot be defined
in a common header and need to be moved to a specific gcc implemention
file.  This also requires to make the gcov_info structure opaque for the
common code and to introduce simple helpers for accessing data inside
gcov_info.

Signed-off-by: Frantisek Hrbata 
Cc: Jan Stancek 
Cc: Kees Cook 
Acked-by: Peter Oberparleiter 
Cc: Rusty Russell 
Cc: Arnd Bergmann 
Cc: Andy Gospodarek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kernel: replace strict_strto() with kstrto()

2013-09-12T22:38:03+00:00

The usage of strict_strto*() is not preferred, because strict_strto*() is
obsolete.  Thus, kstrto*() should be used.

Signed-off-by: Jingoo Han 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

linux-stable.git/kernel/gcov, branch v3.16.67

gcov: support GCC 7.1

gcov: add support for gcc version >= 6

gcov: add support for GCC 5.1

gcov: add support for GCC 4.9

gcov: reuse kbasename helper

kernel/gcov/fs.c: use pr_warn()

gcov: compile specific gcov implementation based on gcc version

gcov: add support for gcc 4.7 gcov format

gcov: move gcov structs definitions to a gcc version specific file

kernel: replace strict_strto*() with kstrto*()

kernel: replace strict_strto() with kstrto()