| commit | add7490c273650c3aa8012f3e082aa64af86f17c | |
| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | |
| Mon, 23 May 2011 08:24:31 +0000 (23 10:24 +0200) | ||
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Mon, 23 May 2011 08:24:29 +0000 (23 10:24 +0200) | ||
| tree | 80dbc7913434d8b56235f1f0fc4e172152fa13b0 | treesnapshot (tar.gz zip) |
| parent | cf2d007bd43bc254d5254fe9d30af3e73ed5b98a | commitdiff |
[S390] vdso: disable gcov profiling
The concepts of VDSO and gcov-based profiling don't mix: the former
includes kernel-provided code running in userspace, the latter adds
instructions that modify counters in kernel data segments. On s390
this has not been a problem so far due to VDSO code being written in
all-assembler which is exempt from gcov-based profiling. This could
change in the future, so disable profiling excplicitly for VDSO code.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The concepts of VDSO and gcov-based profiling don't mix: the former
includes kernel-provided code running in userspace, the latter adds
instructions that modify counters in kernel data segments. On s390
this has not been a problem so far due to VDSO code being written in
all-assembler which is exempt from gcov-based profiling. This could
change in the future, so disable profiling excplicitly for VDSO code.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| arch/s390/kernel/vdso32/Makefile | diffblobblamehistory | |
| arch/s390/kernel/vdso64/Makefile | diffblobblamehistory |