1 files changed, 98 insertions, 0 deletions
diff --git a/ldso/ldso/metag/dl-sysdep.h b/ldso/ldso/metag/dl-sysdep.h
new file mode 100644
index 000000000..55e8d1f66
--- /dev/null
+++ b/ldso/ldso/metag/dl-sysdep.h
@@ -0,0 +1,98 @@
+/*
+ * Meta can never use Elf32_Rel relocations.
+ *
+ * Copyright (C) 2013, Imagination Technologies Ltd.
+ *
+ * Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ */
+
+#define ELF_USES_RELOCA
+
+#include <elf.h>
+
+/* Initialization sequence for the GOT.  */
+#define INIT_GOT(GOT_BASE,MODULE)				\
+{								\
+	GOT_BASE[1] = (unsigned long) MODULE; 			\
+	GOT_BASE[2] = (unsigned long) _dl_linux_resolve; 	\
+}
+
+/* Maximum unsigned GOT [GS]ETD offset size, ie. 2^(11+2). */
+#define GOT_REG_OFFSET 0x2000
+
+/* Defined some magic numbers that this ld.so should accept. */
+#define MAGIC1 EM_METAG
+#undef  MAGIC2
+#define ELF_TARGET "META"
+
+/* Need bootstrap relocations */
+#define ARCH_NEEDS_BOOTSTRAP_RELOCS
+
+struct elf_resolve;
+extern unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry);
+
+/* Variable page size. */
+#define ADDR_ALIGN (_dl_pagesize - 1)
+#define PAGE_ALIGN (~ADDR_ALIGN)
+#define OFFS_ALIGN (PAGE_ALIGN & ~(1ul << (sizeof(_dl_pagesize) * 8 - 1)))
+
+/* The union of reloc-type-classes where the reloc TYPE is a member.
+
+   TYPE is in the class ELF_RTYPE_CLASS_NOCOPY if it 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_METAG_JMP_SLOT)) * ELF_RTYPE_CLASS_PLT)	\
+   | (((type) == R_METAG_COPY) * ELF_RTYPE_CLASS_COPY))
+
+static inline Elf32_Addr
+elf_machine_dynamic(Elf32_Ehdr *header)
+{
+	Elf32_Addr *got;
+
+	__asm__ ("MOV %0,A1LbP" : "=r" (got));
+
+	if (header->e_ident[EI_ABIVERSION] >= 1) {
+		/* GOT register offset was introduced with ABI v1 */
+		got = (Elf32_Addr*)((void*)got - GOT_REG_OFFSET);
+	}
+	return *got;
+}
+
+#define DL_BOOT_COMPUTE_GOT(GOT) \
+    ((GOT) = elf_machine_dynamic(header))
+
+static inline Elf32_Addr
+elf_machine_load_address(void)
+{
+	Elf32_Addr addr;
+	__asm__ ("MOV  D1Ar1,A1LbP\n"
+		 "ADDT D1Ar1,D1Ar1,#HI(__dl_start@GOTOFF)\n"
+		 "ADD  D1Ar1,D1Ar1,#LO(__dl_start@GOTOFF)\n"
+		 "ADDT D0Ar2,D0Ar2,#HI(__dl_start_addr@GOTOFF)\n"
+		 "ADD  D0Ar2,D0Ar2,#LO(__dl_start_addr@GOTOFF)\n"
+		 "GETD D0Ar2,[D0Ar2]\n"
+		 "SUB  %0,D1Ar1,D0Ar2\n"
+		 ".section .data\n"
+		 "__dl_start_addr: .long __dl_start\n"
+		 ".previous\n"
+		 : "=d" (addr) : : "D1Ar1", "D0Ar2");
+	return addr;
+}
+
+static inline void
+elf_machine_relative(Elf32_Addr load_off, const Elf32_Addr rel_addr,
+                     Elf32_Word relative_count)
+{
+	Elf32_Rela *rpnt = (void *)rel_addr;
+
+	--rpnt;
+	do {
+		Elf32_Addr *const reloc_addr =
+			(void *)(load_off + (++rpnt)->r_offset);
+
+		*reloc_addr =  load_off + rpnt->r_addend;
+	} while (--relative_count);
+}
+
+#define DL_MALLOC_ALIGN 8