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linux/tools/perf/arch
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Ian Rogers edb217ff14 perf pmu: Parse sysfs events directly from a file 
Rather than read a sysfs events file into a 256 byte char buffer, pass
the FILE* directly to the lex/yacc parser.

This avoids there being a maximum events file size.

While changing the API, constify some arguments to remove unnecessary
casts.

Allocating the read buffer decreases the performance of pmu-scan by
around 3%.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Gaosheng Cui <cuigaosheng1@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230824041330.266337-10-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-08-24 11:02:59 -03:00
..
alpha
arc/annotate
arm perf pmu: Avoid passing format list to perf_pmu__format_bits() 2023-08-23 14:27:34 -03:00
arm64 perf pmu: Avoid passing format list to perf_pmu__format_bits() 2023-08-23 14:27:34 -03:00
csky perf parse-regs: Move out arch specific header from util/perf_regs.h 2023-08-16 08:52:45 -03:00
loongarch perf parse-regs: Move out arch specific header from util/perf_regs.h 2023-08-16 08:52:45 -03:00
mips perf parse-regs: Move out arch specific header from util/perf_regs.h 2023-08-16 08:52:45 -03:00
parisc
powerpc perf parse-regs: Move out arch specific header from util/perf_regs.h 2023-08-16 08:52:45 -03:00
riscv perf parse-regs: Move out arch specific header from util/perf_regs.h 2023-08-16 08:52:45 -03:00
riscv64/annotate
s390 perf parse-regs: Move out arch specific header from util/perf_regs.h 2023-08-16 08:52:45 -03:00
sh
sparc
x86 perf pmu: Parse sysfs events directly from a file 2023-08-24 11:02:59 -03:00
xtensa
Build
common.c perf tools riscv: Add support for riscv lookup_binutils_path 2023-05-12 15:21:48 -03:00
common.h perf annotate: Own objdump_path and disassembler_style strings 2023-04-04 09:39:56 -03:00