2 * Meta can never use Elf32_Rel relocations.
4 * Copyright (C) 2013, Imagination Technologies Ltd.
6 * Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
9 #define ELF_USES_RELOCA
13 /* Initialization sequence for the GOT. */
14 #define INIT_GOT(GOT_BASE,MODULE) \
16 GOT_BASE[1] = (unsigned long) MODULE; \
17 GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
20 /* Maximum unsigned GOT [GS]ETD offset size, ie. 2^(11+2). */
21 #define GOT_REG_OFFSET 0x2000
23 /* Defined some magic numbers that this ld.so should accept. */
24 #define MAGIC1 EM_METAG
26 #define ELF_TARGET "META"
28 /* Need bootstrap relocations */
29 #define ARCH_NEEDS_BOOTSTRAP_RELOCS
32 extern unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry);
34 /* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or
35 TLS variable, so undefined references should not be allowed to
38 ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
39 of the main executable's symbols, as for a COPY reloc. */
40 #define elf_machine_type_class(type) \
41 ((((type) == R_METAG_JMP_SLOT || (type) == R_METAG_TLS_DTPMOD \
42 || (type) == R_METAG_TLS_DTPOFF || (type) == R_METAG_TLS_TPOFF) \
43 * ELF_RTYPE_CLASS_PLT) \
44 | (((type) == R_METAG_COPY) * ELF_RTYPE_CLASS_COPY))
46 static inline Elf32_Addr
47 elf_machine_dynamic(Elf32_Ehdr *header)
51 __asm__ ("MOV %0,A1LbP" : "=r" (got));
53 if (header->e_ident[EI_ABIVERSION] >= 1) {
54 /* GOT register offset was introduced with ABI v1 */
55 got = (Elf32_Addr*)((void*)got - GOT_REG_OFFSET);
60 #define DL_BOOT_COMPUTE_GOT(GOT) \
61 ((GOT) = elf_machine_dynamic(header))
63 static inline Elf32_Addr
64 elf_machine_load_address(void)
67 __asm__ ("MOV D1Ar1,A1LbP\n"
68 "ADDT D1Ar1,D1Ar1,#HI(__dl_start@GOTOFF)\n"
69 "ADD D1Ar1,D1Ar1,#LO(__dl_start@GOTOFF)\n"
70 "ADDT D0Ar2,D0Ar2,#HI(__dl_start_addr@GOTOFF)\n"
71 "ADD D0Ar2,D0Ar2,#LO(__dl_start_addr@GOTOFF)\n"
72 "GETD D0Ar2,[D0Ar2]\n"
73 "SUB %0,D1Ar1,D0Ar2\n"
75 "__dl_start_addr: .long __dl_start\n"
77 : "=d" (addr) : : "D1Ar1", "D0Ar2");
82 elf_machine_relative(Elf32_Addr load_off, const Elf32_Addr rel_addr,
83 Elf32_Word relative_count)
85 Elf32_Rela *rpnt = (void *)rel_addr;
89 Elf32_Addr *const reloc_addr =
90 (void *)(load_off + (++rpnt)->r_offset);
92 *reloc_addr = load_off + rpnt->r_addend;
93 } while (--relative_count);
96 #define DL_MALLOC_ALIGN 8
98 #define HAVE_DL_INLINES_H
100 #define DL_IS_SPECIAL_SEGMENT(EPNT, PPNT) \
101 __dl_is_special_segment(EPNT, PPNT)
102 #define DL_MAP_SEGMENT(EPNT, PPNT, INFILE, FLAGS) \
103 __dl_map_segment (EPNT, PPNT, INFILE, FLAGS)
105 #define DL_CHECK_LIB_TYPE(epnt, piclib, _dl_progname, libname) \
109 char *header_ = (char *)epnt; \
110 ppnt_ = (ElfW(Phdr) *)(intptr_t) & header_[epnt->e_phoff]; \
111 if (ppnt_->p_vaddr >= 0x80000000 && \
112 ppnt_->p_vaddr < 0x82060000) \
114 if (ppnt_->p_vaddr >= 0xe0200000 && \
115 ppnt_->p_vaddr < 0xe0260000) \
120 #define _DL_PREAD(FD, BUF, SIZE, OFFSET) \
121 (_dl_pread((FD), (BUF), (SIZE), (OFFSET)))