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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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