10  * The vDSO is a regular ELF DSO that the kernel maps into user space when
23 #include <linux/elf.h>
36 #define ELF_BITS_XFORM2(bits, x) Elf##bits##_##x
38 #define ELF(x) ELF_BITS_XFORM(ELF_BITS, x)  macro
41 #define ELF_HASH_ENTRY ELF(Xword)
43 #define ELF_HASH_ENTRY ELF(Word)
55 	ELF(Sym) *symtab;
57 	ELF(Word) *gnu_hash, *gnu_bucket;
62 	ELF(Versym) *versym;
63 	ELF(Verdef) *verdef;
67  * Straight from the ELF specification...and then tweaked slightly, in order to
105 	ELF(Ehdr) *hdr = (ELF(Ehdr)*)base;  in vdso_init_from_sysinfo_ehdr()
108 		return;  /* Wrong ELF class -- check ELF_BITS */  in vdso_init_from_sysinfo_ehdr()
111 	ELF(Phdr) *pt = (ELF(Phdr)*)(vdso_info.load_addr + hdr->e_phoff);  in vdso_init_from_sysinfo_ehdr()
112 	ELF(Dyn) *dyn = 0;  in vdso_init_from_sysinfo_ehdr()
126 			dyn = (ELF(Dyn)*)(base + pt[i].p_offset);  in vdso_init_from_sysinfo_ehdr()
150 			vdso_info.symtab = (ELF(Sym) *)  in vdso_init_from_sysinfo_ehdr()
161 				(ELF(Word) *)((uintptr_t)dyn[i].d_un.d_ptr +  in vdso_init_from_sysinfo_ehdr()
165 			vdso_info.versym = (ELF(Versym) *)  in vdso_init_from_sysinfo_ehdr()
170 			vdso_info.verdef = (ELF(Verdef) *)  in vdso_init_from_sysinfo_ehdr()
202 static bool vdso_match_version(ELF(Versym) ver,  in vdso_match_version()
203 			       const char *name, ELF(Word) hash)  in vdso_match_version()
222 	ELF(Verdef) *def = vdso_info.verdef;  in vdso_match_version()
231 		def = (ELF(Verdef) *)((char *)def + def->vd_next);  in vdso_match_version()
235 	ELF(Verdaux) *aux = (ELF(Verdaux)*)((char *)def + def->vd_aux);  in vdso_match_version()
240 static bool check_sym(ELF(Sym) *sym, ELF(Word) i, const char *name,  in check_sym()
267 	ELF(Word) i;  in vdso_sym()
279 			ELF(Sym) *sym = &vdso_info.symtab[i];  in vdso_sym()
291 			ELF(Sym) *sym = &vdso_info.symtab[i];  in vdso_sym()