On Fri, 27 Mar 2026 16:02:37 +0100
Tomas Glozar <[email protected]> wrote:
> Steven,
>
> please pull the following changes for RTLA (more info in tag description).
I can pull this but I just noticed that starting with 7.0-rc1, it fails
to build without libbpf:
Auto-detecting system features:
... libtraceevent: [ on ]
... libtracefs: [ on ]
... libcpupower: [ OFF ]
... libbpf: [ OFF ]
... clang-bpf-co-re: [ on ]
... bpftool-skeletons: [ OFF ]
libcpupower is missing, building without --deepest-idle-state support.
Please install libcpupower-dev/kernel-tools-libs-devel
libbpf is missing, building without BPF skeleton support.
Please install libbpf-dev/libbpf-devel
bpftool is missing or not supporting skeletons, building without BPF skeleton
support.
Please install bpftool
make -f /work/git/linux-trace.git/tools/build/Makefile.build dir=. obj=rtla
make[1]: Entering directory '/work/git/linux-trace.git/tools/tracing/rtla'
make[2]: Entering directory '/work/git/linux-trace.git/tools/tracing/rtla'
CC /work/git/linux-trace.git/tools/tracing/rtla/src/trace.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/utils.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/actions.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/common.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/osnoise.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/osnoise_top.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/osnoise_hist.o
CC /work/git/linux-trace.git/tools/tracing/rtla/src/timerlat.o
In file included from src/timerlat.c:18:
src/timerlat_bpf.h:15:10: fatal error: bpf/libbpf.h: No such file or directory
15 | #include <bpf/libbpf.h>
| ^~~~~~~~~~~~~~
compilation terminated.
make[2]: *** [/work/git/linux-trace.git/tools/build/Makefile.build:94:
/work/git/linux-trace.git/tools/tracing/rtla/src/timerlat.o] Error 1
make[2]: Leaving directory '/work/git/linux-trace.git/tools/tracing/rtla'
make[1]: *** [/work/git/linux-trace.git/tools/build/Makefile.build:156: src]
Error 2
make[1]: Leaving directory '/work/git/linux-trace.git/tools/tracing/rtla'
make: *** [Makefile:104:
/work/git/linux-trace.git/tools/tracing/rtla/rtla-in.o] Error 2
That should probably be fixed on top of v7.0-rcX so that it is not
broken in 7.0.
-- Steve
>
> Thanks,
> Tomas
>
> The following changes since commit 11439c4635edd669ae435eec308f4ab8a0804808:
>
> Linux 7.0-rc2 (2026-03-01 15:39:31 -0800)
>
> are available in the Git repository at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/tglozar/linux.git
> tags/rtla-v7.1
>
> for you to fetch changes up to 82374995b63d2de21414163828a32d52610dcaf2:
>
> Documentation/rtla: Document SIGINT behavior (2026-03-27 10:58:30 +0100)
