Messages in this thread |  | | Date | Tue, 29 May 2018 10:48:09 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | heads up: moving intel-pt-decoder/Build header checks to check_headers.sh |
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Hi Adrian,
We've made tools/perf/check-headers.sh the mechanism to check for drift on kernel file copies we have in tools/, and it assumes that if we have tools/a/b/c/d, then it came from a/b/c/d in the kernel sources, e.g. a copy of the kernel's arch/x86/lib/x86-opcode-map.txt would be in tools/arch/x86/lib/x86-opcode-map.txt.
That is not the case with the intel-pt-decoder, so I'm thinking about moving those files to comply with the model used for other copies, as having it in util/intel-pt-decoder/ isn't strictly required, i.e. those files could conceivably be used for other purposes besides decoding intel-pt traces, say for disassembly/annotate, that albeit not planned (at least by me) for the near future, would be something interesting to investigate doing.
IIRC Ingo was the one to point me out this, and now I saw the warning about it being different flying by in the middle of the build, differently from what is done by check-headers.sh, that is to show everything that drifted in one single block, at the start of the build.
So unless you have a strong objection to this, I'll continue investigation about how do do it with tools/perf/check-headers.sh,
Thanks,
- Arnaldo
P.S: See how the check-headers.sh stand out at the start and how the intel-pt-decoder copies get buried in the middle:
[acme@seventh perf]$ rm -rf /tmp/build/perf/ ; mkdir -p /tmp/build/perf ; make -C tools/perf O=/tmp/build/perf install-bin make: Entering directory '/home/acme/git/perf/tools/perf' BUILD: Doing 'make -j4' parallel build HOSTCC /tmp/build/perf/fixdep.o HOSTLD /tmp/build/perf/fixdep-in.o LINK /tmp/build/perf/fixdep Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h' Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ]
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lib INSTALL include/bpf INSTALL lib INSTALL examples/bpf INSTALL perf-archive INSTALL perf-with-kcore INSTALL strace/groups INSTALL perl-scripts INSTALL python-scripts INSTALL perf_completion-script INSTALL perf-tip make: Leaving directory '/home/acme/git/perf/tools/perf' [acme@seventh perf]$
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