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Alexei Starovoitov249b8122014-12-01 15:06:37 -08001#ifndef __BPF_LOAD_H
2#define __BPF_LOAD_H
3
4#define MAX_MAPS 32
5#define MAX_PROGS 32
6
7extern int map_fd[MAX_MAPS];
8extern int prog_fd[MAX_PROGS];
Alexei Starovoitovb896c4f2015-03-25 12:49:23 -07009extern int event_fd[MAX_PROGS];
Alexei Starovoitov249b8122014-12-01 15:06:37 -080010
11/* parses elf file compiled by llvm .c->.o
12 * . parses 'maps' section and creates maps via BPF syscall
13 * . parses 'license' section and passes it to syscall
14 * . parses elf relocations for BPF maps and adjusts BPF_LD_IMM64 insns by
15 * storing map_fd into insn->imm and marking such insns as BPF_PSEUDO_MAP_FD
16 * . loads eBPF programs via BPF syscall
17 *
18 * One ELF file can contain multiple BPF programs which will be loaded
19 * and their FDs stored stored in prog_fd array
20 *
21 * returns zero on success
22 */
23int load_bpf_file(char *path);
24
Alexei Starovoitovb896c4f2015-03-25 12:49:23 -070025void read_trace_pipe(void);
26
Alexei Starovoitov249b8122014-12-01 15:06:37 -080027#endif