mirror of
https://github.com/torvalds/linux
synced 2024-10-01 00:39:03 +00:00
c65c83ffe9
So far we've been suppressing common stuff such as "MAP_" in the mmap
flags, showing "SHARED" instead of "MAP_SHARED", allow for those
prefixes (and a few suffixes) to be shown:
# trace -e *map,open*,*seek sleep 1
openat("/etc/ld.so.cache", CLOEXEC) = 3
mmap(0, 109093, READ, PRIVATE, 3, 0) = 0x7ff61c695000
openat("/lib64/libc.so.6", CLOEXEC) = 3
lseek(3, 792, SET) = 792
mmap(0, 8192, READ|WRITE, PRIVATE|ANONYMOUS) = 0x7ff61c693000
lseek(3, 792, SET) = 792
lseek(3, 864, SET) = 864
mmap(0, 1857568, READ, PRIVATE|DENYWRITE, 3, 0) = 0x7ff61c4cd000
mmap(0x7ff61c4ef000, 1363968, EXEC|READ, PRIVATE|FIXED|DENYWRITE, 3, 139264) = 0x7ff61c4ef000
mmap(0x7ff61c63c000, 311296, READ, PRIVATE|FIXED|DENYWRITE, 3, 1503232) = 0x7ff61c63c000
mmap(0x7ff61c689000, 24576, READ|WRITE, PRIVATE|FIXED|DENYWRITE, 3, 1814528) = 0x7ff61c689000
mmap(0x7ff61c68f000, 14368, READ|WRITE, PRIVATE|FIXED|ANONYMOUS) = 0x7ff61c68f000
munmap(0x7ff61c695000, 109093) = 0
openat("/usr/lib/locale/locale-archive", CLOEXEC) = 3
mmap(0, 217749968, READ, PRIVATE, 3, 0) = 0x7ff60f523000
#
# vim ~/.perfconfig
#
# perf config
llvm.dump-obj=true
trace.add_events=/home/acme/git/perf/tools/perf/examples/bpf/augmented_raw_syscalls.o
trace.show_zeros=yes
trace.show_duration=no
trace.no_inherit=yes
trace.show_timestamp=no
trace.show_arg_names=no
trace.args_alignment=0
trace.string_quote="
trace.show_prefix=yes
#
#
# trace -e *map,open*,*seek sleep 1
openat(AT_FDCWD, "/etc/ld.so.cache", O_CLOEXEC) = 3
mmap(0, 109093, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7ebbe59000
openat(AT_FDCWD, "/lib64/libc.so.6", O_CLOEXEC) = 3
lseek(3, 792, SEEK_SET) = 792
mmap(0, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS) = 0x7f7ebbe57000
lseek(3, 792, SEEK_SET) = 792
lseek(3, 864, SEEK_SET) = 864
mmap(0, 1857568, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7ebbc91000
mmap(0x7f7ebbcb3000, 1363968, PROT_EXEC|PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 139264) = 0x7f7ebbcb3000
mmap(0x7f7ebbe00000, 311296, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 1503232) = 0x7f7ebbe00000
mmap(0x7f7ebbe4d000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 1814528) = 0x7f7ebbe4d000
mmap(0x7f7ebbe53000, 14368, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS) = 0x7f7ebbe53000
munmap(0x7f7ebbe59000, 109093) = 0
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_CLOEXEC) = 3
mmap(0, 217749968, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7eaece7000
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-mtn1i4rjowjl72trtnbmvjd4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
// SPDX-License-Identifier: LGPL-2.1
|
|
#include <linux/futex.h>
|
|
|
|
#ifndef FUTEX_WAIT_BITSET
|
|
#define FUTEX_WAIT_BITSET 9
|
|
#endif
|
|
#ifndef FUTEX_WAKE_BITSET
|
|
#define FUTEX_WAKE_BITSET 10
|
|
#endif
|
|
#ifndef FUTEX_WAIT_REQUEUE_PI
|
|
#define FUTEX_WAIT_REQUEUE_PI 11
|
|
#endif
|
|
#ifndef FUTEX_CMP_REQUEUE_PI
|
|
#define FUTEX_CMP_REQUEUE_PI 12
|
|
#endif
|
|
#ifndef FUTEX_CLOCK_REALTIME
|
|
#define FUTEX_CLOCK_REALTIME 256
|
|
#endif
|
|
|
|
static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
|
|
{
|
|
bool show_prefix = arg->show_string_prefix;
|
|
const char *prefix = "FUTEX_";
|
|
enum syscall_futex_args {
|
|
SCF_UADDR = (1 << 0),
|
|
SCF_OP = (1 << 1),
|
|
SCF_VAL = (1 << 2),
|
|
SCF_TIMEOUT = (1 << 3),
|
|
SCF_UADDR2 = (1 << 4),
|
|
SCF_VAL3 = (1 << 5),
|
|
};
|
|
int op = arg->val;
|
|
int cmd = op & FUTEX_CMD_MASK;
|
|
size_t printed = 0;
|
|
|
|
switch (cmd) {
|
|
#define P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, "%s%s", show_prefix ? prefix : "", #n);
|
|
P_FUTEX_OP(WAIT); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
|
|
P_FUTEX_OP(WAKE); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(FD); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(REQUEUE); arg->mask |= SCF_VAL3|SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(CMP_REQUEUE); arg->mask |= SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(WAKE_OP); break;
|
|
P_FUTEX_OP(LOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(UNLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
|
|
P_FUTEX_OP(TRYLOCK_PI); arg->mask |= SCF_VAL3|SCF_UADDR2; break;
|
|
P_FUTEX_OP(WAIT_BITSET); arg->mask |= SCF_UADDR2; break;
|
|
P_FUTEX_OP(WAKE_BITSET); arg->mask |= SCF_UADDR2; break;
|
|
P_FUTEX_OP(WAIT_REQUEUE_PI); break;
|
|
default: printed = scnprintf(bf, size, "%#x", cmd); break;
|
|
}
|
|
|
|
if (op & FUTEX_PRIVATE_FLAG)
|
|
printed += scnprintf(bf + printed, size - printed, "|%s%s", show_prefix ? prefix : "", "PRIVATE_FLAG");
|
|
|
|
if (op & FUTEX_CLOCK_REALTIME)
|
|
printed += scnprintf(bf + printed, size - printed, "|%s%s", show_prefix ? prefix : "", "CLOCK_REALTIME");
|
|
|
|
return printed;
|
|
}
|
|
|
|
#define SCA_FUTEX_OP syscall_arg__scnprintf_futex_op
|