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- /* Use reloca */
- #define ELF_USES_RELOCA
- #include <elf.h>
- /* Initialise the GOT */
- #define INIT_GOT(GOT_BASE,MODULE) \
- do { \
- GOT_BASE[2] = (unsigned long) _dl_linux_resolve; \
- GOT_BASE[1] = (unsigned long) MODULE; \
- } while(0)
- /* Here we define the magic numbers that this dynamic loader should accept */
- #define MAGIC1 EM_ALTERA_NIOS2
- #undef MAGIC2
- /* Used for error messages */
- #define ELF_TARGET "nios2"
- struct elf_resolve;
- unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, int reloc_entry);
- /* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
- PLT entries should not be allowed to define the value.
- ELF_RTYPE_CLASS_COPY iff TYPE should not be allowed to resolve to one
- of the main executable's symbols, as for a COPY reloc. */
- #define elf_machine_type_class(type) \
- ((((type) == R_NIOS2_JUMP_SLOT \
- || (type) == R_NIOS2_TLS_DTPMOD \
- || (type) == R_NIOS2_TLS_DTPREL \
- || (type) == R_NIOS2_TLS_TPREL) * ELF_RTYPE_CLASS_PLT) \
- | (((type) == R_NIOS2_COPY) * ELF_RTYPE_CLASS_COPY))
- /* Return the link-time address of _DYNAMIC. Conveniently, this is the
- first element of the GOT. */
- static inline Elf32_Addr
- elf_machine_dynamic (void)
- {
- Elf32_Addr *dynamic;
- int tmp;
- __asm__ ("nextpc\t%0\n\t"
- "1: movhi\t%1, %%hiadj(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t"
- "addi\t%1, %1, %%lo(_GLOBAL_OFFSET_TABLE_ - 1b)\n\t"
- "add\t%0, %0, %1\n"
- : "=r" (dynamic), "=r" (tmp));
- return *dynamic;
- }
- /* Return the run-time load address of the shared object. */
- static inline Elf32_Addr
- elf_machine_load_address (void)
- {
- Elf32_Addr result;
- int tmp;
- __asm__ ("nextpc\t%0\n\t"
- "1: movhi\t%1, %%hiadj(1b)\n\t"
- "addi\t%1, %1, %%lo(1b)\n\t"
- "sub\t%0, %0, %1\n"
- : "=r" (result), "=r" (tmp));
- return result;
- }
- static __always_inline void
- elf_machine_relative (Elf32_Addr load_off, const Elf32_Addr rel_addr,
- Elf32_Word relative_count)
- {
- Elf32_Rel * rpnt = (void *) rel_addr;
- do {
- Elf32_Addr *const reloc_addr = (void *) (load_off + (rpnt)->r_offset);
- *reloc_addr += load_off;
- } while (--relative_count);
- }
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