rtld-elf/amd64/reloc.c

114 init_pltgot(Obj_Entry *obj)
116     if (obj->pltgot != NULL) {
117 	obj->pltgot[1] = (Elf_Addr) obj;
118 	obj->pltgot[2] = (Elf_Addr) &_rtld_bind_start;
124 reloc_non_plt(Obj_Entry *obj, Obj_Entry *obj_rtld, int flags,
141 	if (obj != obj_rtld) {
142 		cache = calloc(obj->dynsymcount, sizeof(SymCache));
147 	relalim = (const Elf_Rela *)((caddr_t)obj->rela + obj->relasize);
148 	for (rela = obj->rela;  rela < relalim;  rela++) {
162 			def = find_symdef(ELF_R_SYM(rela->r_info), obj,
182 						obj->non_plt_gnu_ifunc = true;
194 					    obj->path);
209 		where = (Elf_Addr *)(obj->relocbase + rela->r_offset);
235 			if (!obj->mainprog) {
237 				    "relocation in shared library", obj->path);
257 					    obj->path);
277 					    obj->path);
295 			*where = (Elf_Addr)(obj->relocbase + rela->r_addend);
304 			    " in non-PLT relocations\n", obj->path,
317 reloc_plt(Obj_Entry *obj)
322     relalim = (const Elf_Rela *)((char *)obj->pltrela + obj->pltrelasize);
323     for (rela = obj->pltrela;  rela < relalim;  rela++) {
329 	  where = (Elf_Addr *)(obj->relocbase + rela->r_offset);
330 	  *where += (Elf_Addr)obj->relocbase;
334 	  obj->irelative = true;
348 reloc_jmpslots(Obj_Entry *obj, int flags, RtldLockState *lockstate)
353     if (obj->jmpslots_done)
355     relalim = (const Elf_Rela *)((char *)obj->pltrela + obj->pltrelasize);
356     for (rela = obj->pltrela;  rela < relalim;  rela++) {
363 	  where = (Elf_Addr *)(obj->relocbase + rela->r_offset);
364 	  def = find_symdef(ELF_R_SYM(rela->r_info), obj, &defobj,
369 	      obj->gnu_ifunc = true;
373 	  reloc_jmpslot(where, target, defobj, obj, (const Elf_Rel *)rela);
385     obj->jmpslots_done = true;
390 reloc_iresolve(Obj_Entry *obj, RtldLockState *lockstate)
395     if (!obj->irelative)
397     relalim = (const Elf_Rela *)((char *)obj->pltrela + obj->pltrelasize);
398     for (rela = obj->pltrela;  rela < relalim;  rela++) {
406 	  ptr = (Elf_Addr *)(obj->relocbase + rela->r_addend);
407 	  where = (Elf_Addr *)(obj->relocbase + rela->r_offset);
415     obj->irelative = false;
420 reloc_gnu_ifunc(Obj_Entry *obj, int flags, RtldLockState *lockstate)
425     if (!obj->gnu_ifunc)
427     relalim = (const Elf_Rela *)((char *)obj->pltrela + obj->pltrelasize);
428     for (rela = obj->pltrela;  rela < relalim;  rela++) {
435 	  where = (Elf_Addr *)(obj->relocbase + rela->r_offset);
436 	  def = find_symdef(ELF_R_SYM(rela->r_info), obj, &defobj,
445 	  reloc_jmpslot(where, target, defobj, obj, (const Elf_Rel *)rela);
449     obj->gnu_ifunc = false;