LXR linux/samples/bpf/bpf

   1#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];
   9extern 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 */
  23int load_bpf_file(char *path);
  24
  25void read_trace_pipe(void);
  26struct ksym {
  27        long addr;
  28        char *name;
  29};
  30
  31int load_kallsyms(void);
  32struct ksym *ksym_search(long key);
  33#endif
  34