linux/tools/tracing/rtla/Makefile.rtla, branch master

tools/rtla: Fix unassigned nr_cpus

2025-11-20T12:15:54Z

In recently introduced timerlat_free(), the variable 'nr_cpus' is not assigned. Assign it with sysconf(_SC_NPROCESSORS_CONF) as done elsewhere. Remove the culprit: -Wno-maybe-uninitialized. The rest of the code is clean. Signed-off-by: Costa Shulyupin Reviewed-by: Tomas Glozar Fixes: 2f3172f9dd58 ("tools/rtla: Consolidate code between osnoise/timerlat and hist/top") Link: https://lore.kernel.org/r/20251002170846.437888-1-costa.shul@redhat.com Signed-off-by: Tomas Glozar

rtla: Add the ability to create ctags and etags

2025-03-26T14:39:40Z

- Add the ability to create and remove ctags and etags, using the following make tags make TAGS make tags_clean - fix a comment in Makefile.rtla with the correct spelling and don't imply that the ability to create an rtla tarball will be removed Cc: Tomas Glozar Cc: "Luis Claudio R . Goncalves" Link: https://lore.kernel.org/20250321175053.29048-1-jkacur@redhat.com Signed-off-by: John Kacur Signed-off-by: Steven Rostedt (Google)

tools/rtla: Fix installation from out-of-tree build

2024-10-03T20:43:22Z

rtla now supports out-of-tree builds, but installation fails as it still tries to install the rtla binary from the source tree. Use the existing macro $(RTLA) to refer to the binary. Link: https://lore.kernel.org/ZudubuoU_JHjPZ7w@decadent.org.uk Fixes: 01474dc706ca ("tools/rtla: Use tools/build makefiles to build rtla") Reviewed-by: Tomas Glozar Tested-by: Tomas Glozar Signed-off-by: Ben Hutchings Signed-off-by: Steven Rostedt (Google)

tools/rtla: Use tools/build makefiles to build rtla

2024-03-20T04:39:06Z

Use tools/build/ makefiles to build rtla, inheriting the benefits of it. For example, having a proper way to handle dependencies. rtla is built using perf infra-structure when building inside the kernel tree. At this point, rtla diverges from perf in two points: Documentation and tarball generation/build. At the documentation level, rtla is one step ahead, placing the documentation at Documentation/tools/rtla/, using the same build tools as kernel documentation. The idea is to move perf documentation to the same scheme and then share the same makefiles. rtla has a tarball target that the (old) RHEL8 uses. The tarball was kept using a simple standalone makefile for compatibility. The standalone makefile shares most of the code, e.g., flags, with regular buildings. The tarball method was set as deprecated. If necessary, we can make a rtla tarball like perf, which includes the entire tools/build. But this would also require changes in the user side (the directory structure changes, and probably the deps to build the package). Inspired on perf and objtool. Link: https://lkml.kernel.org/r/57563abf2715d22515c0c54a87cff3849eca5d52.1710519524.git.bristot@kernel.org Cc: Arnaldo Carvalho de Melo Cc: Josh Poimboeuf Cc: John Kacur Cc: Namhyung Kim Cc: Jiri Olsa Suggested-by: Linus Torvalds Signed-off-by: Daniel Bristot de Oliveira