Lines Matching +full:libbpf +full:- +full:tools

1 // SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
4 // Based on biostacks(8) from BPF-Perf-Tools-Book by Brendan Gregg.
5 // 10-Aug-2020   Wenbo Zhang   Created this.
10 #include <bpf/libbpf.h>
22 	.duration = -1,
27 	"https://github.com/iovisor/bcc/tree/master/libbpf-tools";
31 "USAGE: biostacks [--help] [-d DISK] [-m] [duration]\n"
36 "    biostacks -d sdc       # trace sdc only\n";
114 		printf("%-14.14s %-6d %-7s\n",  in print_map()
116 			partition ? partition->name : "Unknown");  in print_map()
121 			printf("%s\n", ksym ? ksym->name : "Unknown");  in print_map()
170 		obj->rodata->filter_dev = true;  in main()
171 		obj->rodata->targ_dev = partition->dev;  in main()
174 	obj->rodata->targ_ms = env.milliseconds;  in main()
182 	obj->links.blk_account_io_start = bpf_program__attach(obj->progs.blk_account_io_start);  in main()
183 	if (!obj->links.blk_account_io_start) {  in main()
184 		err = -errno;  in main()
185 		fprintf(stderr, "failed to attach blk_account_io_start: %s\n", strerror(-err));  in main()
194 		obj->links.blk_account_io_merge_bio =  in main()
195 			bpf_program__attach(obj->progs.blk_account_io_merge_bio);  in main()
196 		if (!obj->links.blk_account_io_merge_bio) {  in main()
197 			err = -errno;  in main()
199 				strerror(-err));  in main()
203 	obj->links.blk_account_io_done = bpf_program__attach(obj->progs.blk_account_io_done);  in main()
204 	if (!obj->links.blk_account_io_done) {  in main()
205 		err = -errno;  in main()
207 			strerror(-err));  in main()
213 	printf("Tracing block I/O with init stacks. Hit Ctrl-C to end.\n");  in main()
215 	print_map(ksyms, partitions, bpf_map__fd(obj->maps.hists));  in main()