Lines Matching +full:pre +full:- +full:programs

2 bpftool-gen
4 -------------------------------------------------------------------------------
5 tool for BPF code-generation
6 -------------------------------------------------------------------------------
15 	*OPTIONS* := { { **-j** | **--json** } [{ **-p** | **--pretty** }] }
33 		  with BPF programs from userspace side. Generated code is
43 		  programs, skeleton provides a storage for BPF links (**struct
45 		  requested, supported BPF programs will be automatically
47 		  user in pre-allocated fields in skeleton struct. For BPF
48 		  programs that can't be automatically attached by libbpf,
50 		  in per-program link field. All such set up links will be
53 		  rely on libbpf support to detach programs and free up
57 		  global variables of all supported kinds: mutable, read-only,
58 		  as well as extern ones. This interface allows to pre-setup
60 		  verified by kernel. For non-read-only variables, the same
67 		  object file are matching 1-to-1 and always stay in sync.
68 		  Generated code is dual-licensed under LGPL-2.1 and
69 		  BSD-2-Clause licenses.
75 		  specific maps, programs, etc.
83 		  - **example__open** and **example__open_opts**.
89 		  - **example__load**.
91 		    programs, initializes global data maps. It corresponds to
94 		  - **example__open_and_load** combines **example__open** and
98 		  - **example__attach** and **example__detach**
101 		    programs of types supported by libbpf for auto-attachment
102 		    will be auto-attached and their corresponding BPF links
103 		    instantiated. For other BPF programs, user can manually
109 		  - **example__destroy**
110 		    Detach and unload BPF programs, free up all the resources
119 		  Afterwards, if target kernel supports memory-mapped BPF
121 		  (non-read-only) data from userspace, with same simplicity
172 This is example BPF application with two BPF programs and a mix of BPF maps
179   /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
245   	skel->rodata->param1 = 128;
256   	printf("my_map name: %s\n", bpf_map__name(skel->maps.my_map));
258   	       bpf_program__fd(skel->progs.handle_sys_enter));
260   	/* detach and re-attach sys_exit program */
261   	bpf_link__destroy(skel->links.handle_sys_exit);
262   	skel->links.handle_sys_exit =
263   		bpf_program__attach(skel->progs.handle_sys_exit);
266   	       skel->bss->handle_sys_enter_my_static_var);
281 This is a stripped-out version of skeleton generated for above example code.