| Age | Commit message (Collapse) | Author | Files | Lines | |
|---|---|---|---|---|---|
| 2013-11-13 | gcov: move gcov structs definitions to a gcc version specific file | Frantisek Hrbata | 1 | -0/+115 | |
| 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 <[email protected]> Cc: Jan Stancek <[email protected]> Cc: Kees Cook <[email protected]> Acked-by: Peter Oberparleiter <[email protected]> Cc: Rusty Russell <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Andy Gospodarek <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||
| 2009-06-18 | gcov: add gcov profiling infrastructure | Peter Oberparleiter | 1 | -0/+447 | |
| Enable the use of GCC's coverage testing tool gcov [1] with the Linux kernel. gcov may be useful for: * debugging (has this code been reached at all?) * test improvement (how do I change my test to cover these lines?) * minimizing kernel configurations (do I need this option if the associated code is never run?) The profiling patch incorporates the following changes: * change kbuild to include profiling flags * provide functions needed by profiling code * present profiling data as files in debugfs Note that on some architectures, enabling gcc's profiling option "-fprofile-arcs" for the entire kernel may trigger compile/link/ run-time problems, some of which are caused by toolchain bugs and others which require adjustment of architecture code. For this reason profiling the entire kernel is initially restricted to those architectures for which it is known to work without changes. This restriction can be lifted once an architecture has been tested and found compatible with gcc's profiling. Profiling of single files or directories is still available on all platforms (see config help text). [1] http://gcc.gnu.org/onlinedocs/gcc/Gcov.html Signed-off-by: Peter Oberparleiter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Huang Ying <[email protected]> Cc: Li Wei <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Rusty Russell <[email protected]> Cc: WANG Cong <[email protected]> Cc: Sam Ravnborg <[email protected]> Cc: Jeff Dike <[email protected]> Cc: Al Viro <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> | |||||