Messages in this thread | | | From | Arnaldo Carvalho de Melo <> | Date | Thu, 6 Jun 2019 10:46:24 -0300 | Subject | Re: [PATCH v2 3/4] perf augmented_raw_syscalls: Support arm64 raw syscalls |
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Em Thu, Jun 06, 2019 at 10:38:38AM -0300, Arnaldo Carvalho de Melo escreveu: > Em Thu, Jun 06, 2019 at 05:48:44PM +0800, Leo Yan escreveu: > > This patch adds support for arm64 raw syscall numbers so that we can use > > it on arm64 platform. > > > > After applied this patch, we need to specify macro -D__aarch64__ or > > -D__x86_64__ in compilation option so Clang can use the corresponding > > syscall numbers for arm64 or x86_64 respectively, other architectures > > will report failure when compilation. > > So, please check what I have in my perf/core branch, I've completely > removed arch specific stuff from augmented_raw_syscalls.c. > > What is done now is use a map to specify what to copy, that same map > that is used to state which syscalls should be traced. > > It uses that tools/perf/arch/arm64/entry/syscalls/mksyscalltbl to figure > out the mapping of syscall names to ids, just like is done for x86_64 > and other arches, falling back to audit-libs when that syscalltbl thing > is not present.
Also added:
Fixes: ac96287cae08 ("perf trace: Allow specifying a set of events to add in perfconfig")
For the stable@kernel.org folks to automagically pick this.
- Arnaldo
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