1 #ifndef __BPF_LOAD_H
2 #define __BPF_LOAD_H
3 
4 #define MAX_MAPS 32
5 #define MAX_PROGS 32
6 
7 extern int map_fd[MAX_MAPS];
8 extern int prog_fd[MAX_PROGS];
9 extern int event_fd[MAX_PROGS];
10 
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  */
23 int load_bpf_file(char *path);
24 
25 void read_trace_pipe(void);
26 
27 #endif
28