shdr_prog 513 samples/bpf/bpf_load.c GElf_Shdr shdr, shdr_prog; shdr_prog 611 samples/bpf/bpf_load.c &shdr_prog, &data_prog)) shdr_prog 614 samples/bpf/bpf_load.c if (shdr_prog.sh_type != SHT_PROGBITS || shdr_prog 615 samples/bpf/bpf_load.c !(shdr_prog.sh_flags & SHF_EXECINSTR))