litmus-rt-tegra.git/arch/s390/kernel/vdso32/Makefile, branch master LITMUS^RT and MC^2 V0 support for the NVIDIA Tegra 3 SoC [S390] vdso: disable gcov profiling 2011-05-23T08:24:29+00:00 Peter Oberparleiter peter.oberparleiter@de.ibm.com 2011-05-23T08:24:31+00:00 add7490c273650c3aa8012f3e082aa64af86f17c 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>
kbuild: rename ld-option to cc-ldoption 2009-09-20T10:27:42+00:00 Sam Ravnborg sam@ravnborg.org 2009-09-19T08:14:33+00:00 f86fd306605287d7c7f4f0f8e8e2a9d49d28b396 ld-option is misnamed as it test options to gcc, not to ld. Renamed it to reflect this. Cc: Andi Kleen <andi@firstfloor.org> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> 
ld-option is misnamed as it test options to gcc, not to ld.
Renamed it to reflect this.

Cc: Andi Kleen <andi@firstfloor.org>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
[S390] introduce vdso on s390 2008-12-25T12:38:55+00:00 Martin Schwidefsky schwidefsky@de.ibm.com 2008-12-25T12:38:36+00:00 b020632e40c3ed5e8c0c066d022672907e8401cf Add a vdso to speed up gettimeofday and clock_getres/clock_gettime for CLOCK_REALTIME/CLOCK_MONOTONIC. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> 
Add a vdso to speed up gettimeofday and clock_getres/clock_gettime for
CLOCK_REALTIME/CLOCK_MONOTONIC.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>