diff options
Diffstat (limited to 'tools/lib/traceevent/plugins/plugin_futex.c')
| -rw-r--r-- | tools/lib/traceevent/plugins/plugin_futex.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/tools/lib/traceevent/plugins/plugin_futex.c b/tools/lib/traceevent/plugins/plugin_futex.c deleted file mode 100644 index eb7c9f8a850a..000000000000 --- a/tools/lib/traceevent/plugins/plugin_futex.c +++ /dev/null @@ -1,123 +0,0 @@ -// SPDX-License-Identifier: LGPL-2.1 -/* - * Copyright (C) 2017 National Instruments Corp. - * - * Author: Julia Cartwright <julia@ni.com> - * - */ -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <linux/futex.h> - -#include "event-parse.h" - -#define ARRAY_SIZE(_a) (sizeof(_a) / sizeof((_a)[0])) - -struct futex_args { - unsigned long long uaddr; - unsigned long long op; - unsigned long long val; - unsigned long long utime; /* or val2 */ - unsigned long long uaddr2; - unsigned long long val3; -}; - -struct futex_op { - const char *name; - const char *fmt_val; - const char *fmt_utime; - const char *fmt_uaddr2; - const char *fmt_val3; -}; - -static const struct futex_op futex_op_tbl[] = { - { "FUTEX_WAIT", " val=0x%08llx", " utime=0x%08llx", NULL, NULL }, - { "FUTEX_WAKE", " val=%llu", NULL, NULL, NULL }, - { "FUTEX_FD", " val=%llu", NULL, NULL, NULL }, - { "FUTEX_REQUEUE", " val=%llu", " val2=%llu", " uaddr2=0x%08llx", NULL }, - { "FUTEX_CMP_REQUEUE", " val=%llu", " val2=%llu", " uaddr2=0x%08llx", " val3=0x%08llx" }, - { "FUTEX_WAKE_OP", " val=%llu", " val2=%llu", " uaddr2=0x%08llx", " val3=0x%08llx" }, - { "FUTEX_LOCK_PI", NULL, " utime=0x%08llx", NULL, NULL }, - { "FUTEX_UNLOCK_PI", NULL, NULL, NULL, NULL }, - { "FUTEX_TRYLOCK_PI", NULL, NULL, NULL, NULL }, - { "FUTEX_WAIT_BITSET", " val=0x%08llx", " utime=0x%08llx", NULL, " val3=0x%08llx" }, - { "FUTEX_WAKE_BITSET", " val=%llu", NULL, NULL, " val3=0x%08llx" }, - { "FUTEX_WAIT_REQUEUE_PI", " val=0x%08llx", " utime=0x%08llx", " uaddr2=0x%08llx", " val3=0x%08llx" }, - { "FUTEX_CMP_REQUEUE_PI", " val=%llu", " val2=%llu", " uaddr2=0x%08llx", " val3=0x%08llx" }, -}; - - -static void futex_print(struct trace_seq *s, const struct futex_args *args, - const struct futex_op *fop) -{ - trace_seq_printf(s, " uaddr=0x%08llx", args->uaddr); - - if (fop->fmt_val) - trace_seq_printf(s, fop->fmt_val, args->val); - - if (fop->fmt_utime) - trace_seq_printf(s,fop->fmt_utime, args->utime); - - if (fop->fmt_uaddr2) - trace_seq_printf(s, fop->fmt_uaddr2, args->uaddr2); - - if (fop->fmt_val3) - trace_seq_printf(s, fop->fmt_val3, args->val3); -} - -static int futex_handler(struct trace_seq *s, struct tep_record *record, - struct tep_event *event, void *context) -{ - const struct futex_op *fop; - struct futex_args args; - unsigned long long cmd; - - if (tep_get_field_val(s, event, "uaddr", record, &args.uaddr, 1)) - return 1; - - if (tep_get_field_val(s, event, "op", record, &args.op, 1)) - return 1; - - if (tep_get_field_val(s, event, "val", record, &args.val, 1)) - return 1; - - if (tep_get_field_val(s, event, "utime", record, &args.utime, 1)) - return 1; - - if (tep_get_field_val(s, event, "uaddr2", record, &args.uaddr2, 1)) - return 1; - - if (tep_get_field_val(s, event, "val3", record, &args.val3, 1)) - return 1; - - cmd = args.op & FUTEX_CMD_MASK; - if (cmd >= ARRAY_SIZE(futex_op_tbl)) - return 1; - - fop = &futex_op_tbl[cmd]; - - trace_seq_printf(s, "op=%s", fop->name); - - if (args.op & FUTEX_PRIVATE_FLAG) - trace_seq_puts(s, "|FUTEX_PRIVATE_FLAG"); - - if (args.op & FUTEX_CLOCK_REALTIME) - trace_seq_puts(s, "|FUTEX_CLOCK_REALTIME"); - - futex_print(s, &args, fop); - return 0; -} - -int TEP_PLUGIN_LOADER(struct tep_handle *tep) -{ - tep_register_event_handler(tep, -1, "syscalls", "sys_enter_futex", - futex_handler, NULL); - return 0; -} - -void TEP_PLUGIN_UNLOADER(struct tep_handle *tep) -{ - tep_unregister_event_handler(tep, -1, "syscalls", "sys_enter_futex", - futex_handler, NULL); -} |