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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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27198a893b
The 'mmap' syscall has special needs so it doesn't use
SCA_STRARRAY_FLAGS, see its implementation in
syscall_arg__scnprintf_mmap_flags(), related to special handling of
MAP_ANONYMOUS, so set ->parm to the strarray__mmap_flags and hook up
with strarray__strtoul_flags manually, now we can filter by those or-ed
string expressions:
# perf trace -e syscalls:sys_enter_mmap sleep 1
0.000 syscalls:sys_enter_mmap(addr: NULL, len: 134346, prot: READ, flags: PRIVATE, fd: 3, off: 0)
0.026 syscalls:sys_enter_mmap(addr: NULL, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS)
0.036 syscalls:sys_enter_mmap(addr: NULL, len: 1857472, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0)
0.046 syscalls:sys_enter_mmap(addr: 0x7fae003d9000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
0.052 syscalls:sys_enter_mmap(addr: 0x7fae00526000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
0.055 syscalls:sys_enter_mmap(addr: 0x7fae00573000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
0.062 syscalls:sys_enter_mmap(addr: 0x7fae00579000, len: 14272, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS)
0.253 syscalls:sys_enter_mmap(addr: NULL, len: 217750512, prot: READ, flags: PRIVATE, fd: 3, off: 0)
#
# perf trace -e syscalls:sys_enter_mmap --filter="flags==PRIVATE|FIXED|DENYWRITE" sleep 1
0.000 syscalls:sys_enter_mmap(addr: 0x7f6ab3dcb000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000)
0.010 syscalls:sys_enter_mmap(addr: 0x7f6ab3f18000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000)
0.014 syscalls:sys_enter_mmap(addr: 0x7f6ab3f65000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000)
# perf trace -e syscalls:sys_enter_mmap --filter="flags==PRIVATE|ANONYMOUS" sleep 1
0.000 syscalls:sys_enter_mmap(addr: NULL, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS)
#
# perf trace -v -e syscalls:sys_enter_mmap --filter="flags==PRIVATE|ANONYMOUS" sleep 1 |& grep "New filter"
New filter for syscalls:sys_enter_mmap: flags==0x22
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-czw754b7m9rp9ibq2f6be2o1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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| .. | ||
| arch | ||
| bench | ||
| Documentation | ||
| examples/bpf | ||
| include/bpf | ||
| jvmti | ||
| lib | ||
| pmu-events | ||
| python | ||
| scripts | ||
| tests | ||
| trace | ||
| ui | ||
| util | ||
| .gitignore | ||
| Build | ||
| builtin-annotate.c | ||
| builtin-bench.c | ||
| builtin-buildid-cache.c | ||
| builtin-buildid-list.c | ||
| builtin-c2c.c | ||
| builtin-config.c | ||
| builtin-data.c | ||
| builtin-diff.c | ||
| builtin-evlist.c | ||
| builtin-ftrace.c | ||
| builtin-help.c | ||
| builtin-inject.c | ||
| builtin-kallsyms.c | ||
| builtin-kmem.c | ||
| builtin-kvm.c | ||
| builtin-list.c | ||
| builtin-lock.c | ||
| builtin-mem.c | ||
| builtin-probe.c | ||
| builtin-record.c | ||
| builtin-report.c | ||
| builtin-sched.c | ||
| builtin-script.c | ||
| builtin-stat.c | ||
| builtin-timechart.c | ||
| builtin-top.c | ||
| builtin-trace.c | ||
| builtin-version.c | ||
| builtin.h | ||
| check-headers.sh | ||
| command-list.txt | ||
| CREDITS | ||
| design.txt | ||
| Makefile | ||
| Makefile.config | ||
| Makefile.perf | ||
| MANIFEST | ||
| perf-archive.sh | ||
| perf-completion.sh | ||
| perf-read-vdso.c | ||
| perf-sys.h | ||
| perf-with-kcore.sh | ||
| perf.c | ||
| perf.h | ||