gelf_getshdr
gelf_getshdr(s, &shdr) == NULL)
GElf_Shdr *gelf_getshdr(Elf_Scn *_scn, GElf_Shdr *_dst);
if (gelf_getshdr(scn, &shdr) == NULL)
if (gelf_getshdr(scn, &shdr) != &shdr) {
if (gelf_getshdr(scn, &shdr) != &shdr) {
if (gelf_getshdr(scn, &shdr) != &shdr)