1 files changed, 74 insertions, 0 deletions
diff --git a/ldso/ldso/nios2/dl-sysdep.h b/ldso/ldso/nios2/dl-sysdep.h
new file mode 100644
index 000000000..5ae3ce311
--- /dev/null
+++ b/ldso/ldso/nios2/dl-sysdep.h
@@ -0,0 +1,74 @@
+/* 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);
+}
+