/*
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* Copyright (c) 2016 GitHub, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LIBBCC_USDT_H
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#define LIBBCC_USDT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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void *bcc_usdt_new_frompid(int pid, const char *path);
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void *bcc_usdt_new_frompath(const char *path);
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void bcc_usdt_close(void *usdt);
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struct bcc_usdt {
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const char *provider;
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const char *name;
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const char *bin_path;
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uint64_t semaphore;
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int num_locations;
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int num_arguments;
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};
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struct bcc_usdt_location {
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uint64_t address;
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const char *bin_path;
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};
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#define BCC_USDT_ARGUMENT_NONE 0x0
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#define BCC_USDT_ARGUMENT_CONSTANT 0x1
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#define BCC_USDT_ARGUMENT_DEREF_OFFSET 0x2
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#define BCC_USDT_ARGUMENT_DEREF_IDENT 0x4
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#define BCC_USDT_ARGUMENT_BASE_REGISTER_NAME 0x8
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#define BCC_USDT_ARGUMENT_INDEX_REGISTER_NAME 0x10
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#define BCC_USDT_ARGUMENT_SCALE 0x20
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struct bcc_usdt_argument {
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int size;
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int valid;
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int constant;
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int deref_offset;
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const char *deref_ident;
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const char *base_register_name;
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const char *index_register_name;
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int scale;
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};
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typedef void (*bcc_usdt_cb)(struct bcc_usdt *);
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void bcc_usdt_foreach(void *usdt, bcc_usdt_cb callback);
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int bcc_usdt_get_location(void *usdt, const char *provider_name,
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const char *probe_name,
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int index, struct bcc_usdt_location *location);
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int bcc_usdt_get_argument(void *usdt, const char *provider_name,
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const char *probe_name,
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int location_index, int argument_index,
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struct bcc_usdt_argument *argument);
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int bcc_usdt_enable_probe(void *, const char *, const char *);
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const char *bcc_usdt_genargs(void **ctx_array, int len);
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const char *bcc_usdt_get_probe_argctype(
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void *ctx, const char* probe_name, const int arg_index
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);
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typedef void (*bcc_usdt_uprobe_cb)(const char *, const char *, uint64_t, int);
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void bcc_usdt_foreach_uprobe(void *usdt, bcc_usdt_uprobe_cb callback);
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#ifdef __cplusplus
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}
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#endif
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#endif
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