Move all files into ports/ subdirectory in preparation for merge with glibc glibc-2.16-ports-before-merge

1 files changed, 780 insertions, 0 deletions

diff --git a/ports/sysdeps/mips/dl-machine.h b/ports/sysdeps/mips/dl-machine.h
new file mode 100644
index 0000000000..bc0378566c
--- /dev/null
+++ b/ports/sysdeps/mips/dl-machine.h
@@ -0,0 +1,780 @@
+/* Machine-dependent ELF dynamic relocation inline functions.  MIPS version.
+   Copyright (C) 1996-2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Kazumoto Kojima <kkojima@info.kanagawa-u.ac.jp>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/*  FIXME: Profiling of shared libraries is not implemented yet.  */
+#ifndef dl_machine_h
+#define dl_machine_h
+
+#define ELF_MACHINE_NAME "MIPS"
+
+#include <entry.h>
+
+#ifndef ENTRY_POINT
+#error ENTRY_POINT needs to be defined for MIPS.
+#endif
+
+#include <sgidefs.h>
+#include <sys/asm.h>
+#include <dl-tls.h>
+
+/* The offset of gp from GOT might be system-dependent.  It's set by
+   ld.  The same value is also */
+#define OFFSET_GP_GOT 0x7ff0
+
+#ifndef _RTLD_PROLOGUE
+# define _RTLD_PROLOGUE(entry)						\
+	".globl\t" __STRING(entry) "\n\t"				\
+	".ent\t" __STRING(entry) "\n\t"					\
+	".type\t" __STRING(entry) ", @function\n"			\
+	__STRING(entry) ":\n\t"
+#endif
+
+#ifndef _RTLD_EPILOGUE
+# define _RTLD_EPILOGUE(entry)						\
+	".end\t" __STRING(entry) "\n\t"					\
+	".size\t" __STRING(entry) ", . - " __STRING(entry) "\n\t"
+#endif
+
+/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.
+   This only makes sense on MIPS when using PLTs, so choose the
+   PLT relocation (not encountered when not using PLTs).  */
+#define ELF_MACHINE_JMP_SLOT			R_MIPS_JUMP_SLOT
+#define elf_machine_type_class(type) \
+  ((((type) == ELF_MACHINE_JMP_SLOT) * ELF_RTYPE_CLASS_PLT)	\
+   | (((type) == R_MIPS_COPY) * ELF_RTYPE_CLASS_COPY))
+
+#define ELF_MACHINE_PLT_REL 1
+
+/* Translate a processor specific dynamic tag to the index
+   in l_info array.  */
+#define DT_MIPS(x) (DT_MIPS_##x - DT_LOPROC + DT_NUM)
+
+/* If there is a DT_MIPS_RLD_MAP entry in the dynamic section, fill it in
+   with the run-time address of the r_debug structure  */
+#define ELF_MACHINE_DEBUG_SETUP(l,r) \
+do { if ((l)->l_info[DT_MIPS (RLD_MAP)]) \
+       *(ElfW(Addr) *)((l)->l_info[DT_MIPS (RLD_MAP)]->d_un.d_ptr) = \
+       (ElfW(Addr)) (r); \
+   } while (0)
+
+/* Return nonzero iff ELF header is compatible with the running host.  */
+static inline int __attribute_used__
+elf_machine_matches_host (const ElfW(Ehdr) *ehdr)
+{
+#if _MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIN32
+  /* Don't link o32 and n32 together.  */
+  if (((ehdr->e_flags & EF_MIPS_ABI2) != 0) != (_MIPS_SIM == _ABIN32))
+    return 0;
+#endif
+
+  switch (ehdr->e_machine)
+    {
+    case EM_MIPS:
+    case EM_MIPS_RS3_LE:
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+static inline ElfW(Addr) *
+elf_mips_got_from_gpreg (ElfW(Addr) gpreg)
+{
+  /* FIXME: the offset of gp from GOT may be system-dependent. */
+  return (ElfW(Addr) *) (gpreg - OFFSET_GP_GOT);
+}
+
+/* Return the link-time address of _DYNAMIC.  Conveniently, this is the
+   first element of the GOT.  This must be inlined in a function which
+   uses global data.  We assume its $gp points to the primary GOT.  */
+static inline ElfW(Addr)
+elf_machine_dynamic (void)
+{
+  register ElfW(Addr) gp __asm__ ("$28");
+  return *elf_mips_got_from_gpreg (gp);
+}
+
+#define STRINGXP(X) __STRING(X)
+#define STRINGXV(X) STRINGV_(X)
+#define STRINGV_(...) # __VA_ARGS__
+
+/* Return the run-time load address of the shared object.  */
+static inline ElfW(Addr)
+elf_machine_load_address (void)
+{
+  ElfW(Addr) addr;
+  asm ("	.set noreorder\n"
+       "	" STRINGXP (PTR_LA) " %0, 0f\n"
+       "	bltzal $0, 0f\n"
+       "	nop\n"
+       "0:	" STRINGXP (PTR_SUBU) " %0, $31, %0\n"
+       "	.set reorder\n"
+       :	"=r" (addr)
+       :	/* No inputs */
+       :	"$31");
+  return addr;
+}
+
+/* The MSB of got[1] of a gnu object is set to identify gnu objects.  */
+#if _MIPS_SIM == _ABI64
+# define ELF_MIPS_GNU_GOT1_MASK	0x8000000000000000L
+#else
+# define ELF_MIPS_GNU_GOT1_MASK	0x80000000L
+#endif
+
+/* We can't rely on elf_machine_got_rel because _dl_object_relocation_scope
+   fiddles with global data.  */
+#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info)			\
+do {									\
+  struct link_map *map = &bootstrap_map;				\
+  ElfW(Sym) *sym;							\
+  ElfW(Addr) *got;							\
+  int i, n;								\
+									\
+  got = (ElfW(Addr) *) D_PTR (map, l_info[DT_PLTGOT]);			\
+									\
+  if (__builtin_expect (map->l_addr == 0, 1))				\
+    break;								\
+									\
+  /* got[0] is reserved. got[1] is also reserved for the dynamic object	\
+     generated by gnu ld. Skip these reserved entries from		\
+     relocation.  */							\
+  i = (got[1] & ELF_MIPS_GNU_GOT1_MASK)? 2 : 1;				\
+  n = map->l_info[DT_MIPS (LOCAL_GOTNO)]->d_un.d_val;			\
+									\
+  /* Add the run-time displacement to all local got entries. */		\
+  while (i < n)								\
+    got[i++] += map->l_addr;						\
+									\
+  /* Handle global got entries. */					\
+  got += n;								\
+  sym = (ElfW(Sym) *) D_PTR(map, l_info[DT_SYMTAB])			\
+       + map->l_info[DT_MIPS (GOTSYM)]->d_un.d_val;			\
+  i = (map->l_info[DT_MIPS (SYMTABNO)]->d_un.d_val			\
+       - map->l_info[DT_MIPS (GOTSYM)]->d_un.d_val);			\
+									\
+  while (i--)								\
+    {									\
+      if (sym->st_shndx == SHN_UNDEF || sym->st_shndx == SHN_COMMON)	\
+	*got = map->l_addr + sym->st_value;				\
+      else if (ELFW(ST_TYPE) (sym->st_info) == STT_FUNC			\
+	       && *got != sym->st_value)				\
+	*got += map->l_addr;						\
+      else if (ELFW(ST_TYPE) (sym->st_info) == STT_SECTION)		\
+	{								\
+	  if (sym->st_other == 0)					\
+	    *got += map->l_addr;					\
+	}								\
+      else								\
+	*got = map->l_addr + sym->st_value;				\
+									\
+      got++;								\
+      sym++;								\
+    }									\
+} while(0)
+
+
+/* Mask identifying addresses reserved for the user program,
+   where the dynamic linker should not map anything.  */
+#define ELF_MACHINE_USER_ADDRESS_MASK	0x80000000UL
+
+
+/* Initial entry point code for the dynamic linker.
+   The C function `_dl_start' is the real entry point;
+   its return value is the user program's entry point.
+   Note how we have to be careful about two things:
+
+   1) That we allocate a minimal stack of 24 bytes for
+      every function call, the MIPS ABI states that even
+      if all arguments are passed in registers the procedure
+      called can use the 16 byte area pointed to by $sp
+      when it is called to store away the arguments passed
+      to it.
+
+   2) That under Unix the entry is named __start
+      and not just plain _start.  */
+
+#define RTLD_START asm (\
+	".text\n\
+	" _RTLD_PROLOGUE(ENTRY_POINT) "\
+	" STRINGXV(SETUP_GPX($25)) "\n\
+	" STRINGXV(SETUP_GPX64($18,$25)) "\n\
+	# i386 ABI book says that the first entry of GOT holds\n\
+	# the address of the dynamic structure. Though MIPS ABI\n\
+	# doesn't say nothing about this, I emulate this here.\n\
+	" STRINGXP(PTR_LA) " $4, _DYNAMIC\n\
+	# Subtract OFFSET_GP_GOT\n\
+	" STRINGXP(PTR_S) " $4, -0x7ff0($28)\n\
+	move $4, $29\n\
+	" STRINGXP(PTR_SUBIU) " $29, 16\n\
+	\n\
+	" STRINGXP(PTR_LA) " $8, .Lcoff\n\
+	bltzal $8, .Lcoff\n\
+.Lcoff:	" STRINGXP(PTR_SUBU) " $8, $31, $8\n\
+	\n\
+	" STRINGXP(PTR_LA) " $25, _dl_start\n\
+	" STRINGXP(PTR_ADDU) " $25, $8\n\
+	jalr $25\n\
+	\n\
+	" STRINGXP(PTR_ADDIU) " $29, 16\n\
+	# Get the value of label '_dl_start_user' in t9 ($25).\n\
+	" STRINGXP(PTR_LA) " $25, _dl_start_user\n\
+	" _RTLD_EPILOGUE(ENTRY_POINT) "\
+	\n\
+	\n\
+	" _RTLD_PROLOGUE(_dl_start_user) "\
+	" STRINGXP(SETUP_GP) "\n\
+	" STRINGXV(SETUP_GP64($18,_dl_start_user)) "\n\
+	move $16, $28\n\
+	# Save the user entry point address in a saved register.\n\
+	move $17, $2\n\
+	# See if we were run as a command with the executable file\n\
+	# name as an extra leading argument.\n\
+	lw $2, _dl_skip_args\n\
+	beq $2, $0, 1f\n\
+	# Load the original argument count.\n\
+	" STRINGXP(PTR_L) " $4, 0($29)\n\
+	# Subtract _dl_skip_args from it.\n\
+	subu $4, $2\n\
+	# Adjust the stack pointer to skip _dl_skip_args words.\n\
+	sll $2, " STRINGXP (PTRLOG) "\n\
+	" STRINGXP(PTR_ADDU) " $29, $2\n\
+	# Save back the modified argument count.\n\
+	" STRINGXP(PTR_S) " $4, 0($29)\n\
+1:	# Call _dl_init (struct link_map *main_map, int argc, char **argv, char **env) \n\
+	" STRINGXP(PTR_L) " $4, _rtld_local\n\
+	" STRINGXP(PTR_L) /* or lw???  fixme */ " $5, 0($29)\n\
+	" STRINGXP(PTR_LA) " $6, " STRINGXP (PTRSIZE) "($29)\n\
+	sll $7, $5, " STRINGXP (PTRLOG) "\n\
+	" STRINGXP(PTR_ADDU) " $7, $7, $6\n\
+	" STRINGXP(PTR_ADDU) " $7, $7, " STRINGXP (PTRSIZE) " \n\
+	# Make sure the stack pointer is aligned for _dl_init_internal.\n\
+	and $2, $29, -2 * " STRINGXP(SZREG) "\n\
+	" STRINGXP(PTR_S) " $29, -" STRINGXP(SZREG) "($2)\n\
+	" STRINGXP(PTR_SUBIU) " $29, $2, 32\n\
+	" STRINGXP(SAVE_GP(16)) "\n\
+	# Call the function to run the initializers.\n\
+	jal _dl_init_internal\n\
+	# Restore the stack pointer for _start.\n\
+	" STRINGXP(PTR_L)  " $29, 32-" STRINGXP(SZREG) "($29)\n\
+	# Pass our finalizer function to the user in $2 as per ELF ABI.\n\
+	" STRINGXP(PTR_LA) " $2, _dl_fini\n\
+	# Jump to the user entry point.\n\
+	move $25, $17\n\
+	jr $25\n\t"\
+	_RTLD_EPILOGUE(_dl_start_user)\
+	".previous"\
+);
+
+/* Names of the architecture-specific auditing callback functions.  */
+# if _MIPS_SIM == _ABIO32
+#  define ARCH_LA_PLTENTER mips_o32_gnu_pltenter
+#  define ARCH_LA_PLTEXIT mips_o32_gnu_pltexit
+# elif _MIPS_SIM == _ABIN32
+#  define ARCH_LA_PLTENTER mips_n32_gnu_pltenter
+#  define ARCH_LA_PLTEXIT mips_n32_gnu_pltexit
+# else
+#  define ARCH_LA_PLTENTER mips_n64_gnu_pltenter
+#  define ARCH_LA_PLTEXIT mips_n64_gnu_pltexit
+# endif
+
+/* We define an initialization function.  This is called very early in
+   _dl_sysdep_start.  */
+#define DL_PLATFORM_INIT dl_platform_init ()
+
+static inline void __attribute__ ((unused))
+dl_platform_init (void)
+{
+  if (GLRO(dl_platform) != NULL && *GLRO(dl_platform) == '\0')
+    /* Avoid an empty string which would disturb us.  */
+    GLRO(dl_platform) = NULL;
+}
+
+/* For a non-writable PLT, rewrite the .got.plt entry at RELOC_ADDR to
+   point at the symbol with address VALUE.  For a writable PLT, rewrite
+   the corresponding PLT entry instead.  */
+static inline ElfW(Addr)
+elf_machine_fixup_plt (struct link_map *map, lookup_t t,
+		       const ElfW(Rel) *reloc,
+		       ElfW(Addr) *reloc_addr, ElfW(Addr) value)
+{
+  return *reloc_addr = value;
+}
+
+static inline ElfW(Addr)
+elf_machine_plt_value (struct link_map *map, const ElfW(Rel) *reloc,
+		       ElfW(Addr) value)
+{
+  return value;
+}
+
+#endif /* !dl_machine_h */
+
+#ifdef RESOLVE_MAP
+
+/* Perform a relocation described by R_INFO at the location pointed to
+   by RELOC_ADDR.  SYM is the relocation symbol specified by R_INFO and
+   MAP is the object containing the reloc.  */
+
+auto inline void
+__attribute__ ((always_inline))
+elf_machine_reloc (struct link_map *map, ElfW(Addr) r_info,
+		   const ElfW(Sym) *sym, const struct r_found_version *version,
+		   void *reloc_addr, ElfW(Addr) r_addend, int inplace_p)
+{
+  const unsigned long int r_type = ELFW(R_TYPE) (r_info);
+  ElfW(Addr) *addr_field = (ElfW(Addr) *) reloc_addr;
+
+#if !defined RTLD_BOOTSTRAP && !defined SHARED
+  /* This is defined in rtld.c, but nowhere in the static libc.a;
+     make the reference weak so static programs can still link.  This
+     declaration cannot be done when compiling rtld.c (i.e.  #ifdef
+     RTLD_BOOTSTRAP) because rtld.c contains the common defn for
+     _dl_rtld_map, which is incompatible with a weak decl in the same
+     file.  */
+  weak_extern (GL(dl_rtld_map));
+#endif
+
+  switch (r_type)
+    {
+#if !defined (RTLD_BOOTSTRAP)
+# if _MIPS_SIM == _ABI64
+    case R_MIPS_TLS_DTPMOD64:
+    case R_MIPS_TLS_DTPREL64:
+    case R_MIPS_TLS_TPREL64:
+# else
+    case R_MIPS_TLS_DTPMOD32:
+    case R_MIPS_TLS_DTPREL32:
+    case R_MIPS_TLS_TPREL32:
+# endif
+      {
+	struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
+
+	switch (r_type)
+	  {
+	  case R_MIPS_TLS_DTPMOD64:
+	  case R_MIPS_TLS_DTPMOD32:
+	    if (sym_map)
+	      *addr_field = sym_map->l_tls_modid;
+	    break;
+
+	  case R_MIPS_TLS_DTPREL64:
+	  case R_MIPS_TLS_DTPREL32:
+	    if (sym)
+	      {
+		if (inplace_p)
+		  r_addend = *addr_field;
+		*addr_field = r_addend + TLS_DTPREL_VALUE (sym);
+	      }
+	    break;
+
+	  case R_MIPS_TLS_TPREL32:
+	  case R_MIPS_TLS_TPREL64:
+	    if (sym)
+	      {
+		CHECK_STATIC_TLS (map, sym_map);
+		if (inplace_p)
+		  r_addend = *addr_field;
+		*addr_field = r_addend + TLS_TPREL_VALUE (sym_map, sym);
+	      }
+	    break;
+	  }
+
+	break;
+      }
+#endif
+
+#if _MIPS_SIM == _ABI64
+    case (R_MIPS_64 << 8) | R_MIPS_REL32:
+#else
+    case R_MIPS_REL32:
+#endif
+      {
+	int symidx = ELFW(R_SYM) (r_info);
+	ElfW(Addr) reloc_value;
+
+	if (inplace_p)
+	  /* Support relocations on mis-aligned offsets.  */
+	  __builtin_memcpy (&reloc_value, reloc_addr, sizeof (reloc_value));
+	else
+	  reloc_value = r_addend;
+
+	if (symidx)
+	  {
+	    const ElfW(Word) gotsym
+	      = (const ElfW(Word)) map->l_info[DT_MIPS (GOTSYM)]->d_un.d_val;
+
+	    if ((ElfW(Word))symidx < gotsym)
+	      {
+		/* This wouldn't work for a symbol imported from other
+		   libraries for which there's no GOT entry, but MIPS
+		   requires every symbol referenced in a dynamic
+		   relocation to have a GOT entry in the primary GOT,
+		   so we only get here for locally-defined symbols.
+		   For section symbols, we should *NOT* be adding
+		   sym->st_value (per the definition of the meaning of
+		   S in reloc expressions in the ELF64 MIPS ABI),
+		   since it should have already been added to
+		   reloc_value by the linker, but older versions of
+		   GNU ld didn't add it, and newer versions don't emit
+		   useless relocations to section symbols any more, so
+		   it is safe to keep on adding sym->st_value, even
+		   though it's not ABI compliant.  Some day we should
+		   bite the bullet and stop doing this.  */
+#ifndef RTLD_BOOTSTRAP
+		if (map != &GL(dl_rtld_map))
+#endif
+		  reloc_value += sym->st_value + map->l_addr;
+	      }
+	    else
+	      {
+#ifndef RTLD_BOOTSTRAP
+		const ElfW(Addr) *got
+		  = (const ElfW(Addr) *) D_PTR (map, l_info[DT_PLTGOT]);
+		const ElfW(Word) local_gotno
+		  = (const ElfW(Word))
+		    map->l_info[DT_MIPS (LOCAL_GOTNO)]->d_un.d_val;
+
+		reloc_value += got[symidx + local_gotno - gotsym];
+#endif
+	      }
+	  }
+	else
+#ifndef RTLD_BOOTSTRAP
+	  if (map != &GL(dl_rtld_map))
+#endif
+	    reloc_value += map->l_addr;
+
+	__builtin_memcpy (reloc_addr, &reloc_value, sizeof (reloc_value));
+      }
+      break;
+#ifndef RTLD_BOOTSTRAP
+#if _MIPS_SIM == _ABI64
+    case (R_MIPS_64 << 8) | R_MIPS_GLOB_DAT:
+#else
+    case R_MIPS_GLOB_DAT:
+#endif
+      {
+	int symidx = ELFW(R_SYM) (r_info);
+	const ElfW(Word) gotsym
+	  = (const ElfW(Word)) map->l_info[DT_MIPS (GOTSYM)]->d_un.d_val;
+
+	if (__builtin_expect ((ElfW(Word)) symidx >= gotsym, 1))
+	  {
+	    const ElfW(Addr) *got
+	      = (const ElfW(Addr) *) D_PTR (map, l_info[DT_PLTGOT]);
+	    const ElfW(Word) local_gotno
+	      = ((const ElfW(Word))
+		 map->l_info[DT_MIPS (LOCAL_GOTNO)]->d_un.d_val);
+
+	    ElfW(Addr) reloc_value = got[symidx + local_gotno - gotsym];
+	    __builtin_memcpy (reloc_addr, &reloc_value, sizeof (reloc_value));
+	  }
+      }
+      break;
+#endif
+    case R_MIPS_NONE:		/* Alright, Wilbur.  */
+      break;
+
+    case R_MIPS_JUMP_SLOT:
+      {
+	struct link_map *sym_map;
+	ElfW(Addr) value;
+
+	/* The addend for a jump slot relocation must always be zero:
+	   calls via the PLT always branch to the symbol's address and
+	   not to the address plus a non-zero offset.  */
+	if (r_addend != 0)
+	  _dl_signal_error (0, map->l_name, NULL,
+			    "found jump slot relocation with non-zero addend");
+
+	sym_map = RESOLVE_MAP (&sym, version, r_type);
+	value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
+	*addr_field = value;
+
+	break;
+      }
+
+    case R_MIPS_COPY:
+      {
+	const ElfW(Sym) *const refsym = sym;
+	struct link_map *sym_map;
+	ElfW(Addr) value;
+
+	/* Calculate the address of the symbol.  */
+	sym_map = RESOLVE_MAP (&sym, version, r_type);
+	value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
+
+	if (__builtin_expect (sym == NULL, 0))
+	  /* This can happen in trace mode if an object could not be
+	     found.  */
+	  break;
+	if (__builtin_expect (sym->st_size > refsym->st_size, 0)
+	    || (__builtin_expect (sym->st_size < refsym->st_size, 0)
+		&& GLRO(dl_verbose)))
+	  {
+	    const char *strtab;
+
+	    strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
+	    _dl_error_printf ("\
+  %s: Symbol `%s' has different size in shared object, consider re-linking\n",
+			      rtld_progname ?: "<program name unknown>",
+			      strtab + refsym->st_name);
+	  }
+	memcpy (reloc_addr, (void *) value,
+		MIN (sym->st_size, refsym->st_size));
+	break;
+      }
+
+#if _MIPS_SIM == _ABI64
+    case R_MIPS_64:
+      /* For full compliance with the ELF64 ABI, one must precede the
+	 _REL32/_64 pair of relocations with a _64 relocation, such
+	 that the in-place addend is read as a 64-bit value.  IRIX
+	 didn't pick up on this requirement, so we treat the
+	 _REL32/_64 relocation as a 64-bit relocation even if it's by
+	 itself.  For ABI compliance, we ignore such _64 dummy
+	 relocations.  For RELA, this may be simply removed, since
+	 it's totally unnecessary.  */
+      if (ELFW(R_SYM) (r_info) == 0)
+	break;
+      /* Fall through.  */
+#endif
+    default:
+      _dl_reloc_bad_type (map, r_type, 0);
+      break;
+    }
+}
+
+/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
+   MAP is the object containing the reloc.  */
+
+auto inline void
+__attribute__ ((always_inline))
+elf_machine_rel (struct link_map *map, const ElfW(Rel) *reloc,
+		 const ElfW(Sym) *sym, const struct r_found_version *version,
+		 void *const reloc_addr, int skip_ifunc)
+{
+  elf_machine_reloc (map, reloc->r_info, sym, version, reloc_addr, 0, 1);
+}
+
+auto inline void
+__attribute__((always_inline))
+elf_machine_rel_relative (ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
+			  void *const reloc_addr)
+{
+  /* XXX Nothing to do.  There is no relative relocation, right?  */
+}
+
+auto inline void
+__attribute__((always_inline))
+elf_machine_lazy_rel (struct link_map *map,
+		      ElfW(Addr) l_addr, const ElfW(Rel) *reloc,
+		      int skip_ifunc)
+{
+  ElfW(Addr) *const reloc_addr = (void *) (l_addr + reloc->r_offset);
+  const unsigned int r_type = ELFW(R_TYPE) (reloc->r_info);
+  /* Check for unexpected PLT reloc type.  */
+  if (__builtin_expect (r_type == R_MIPS_JUMP_SLOT, 1))
+    {
+      if (__builtin_expect (map->l_mach.plt, 0) == 0)
+	{
+	  /* Nothing is required here since we only support lazy
+	     relocation in executables.  */
+	}
+      else
+	*reloc_addr = map->l_mach.plt;
+    }
+  else
+    _dl_reloc_bad_type (map, r_type, 1);
+}
+
+auto inline void
+__attribute__ ((always_inline))
+elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
+		  const ElfW(Sym) *sym, const struct r_found_version *version,
+		  void *const reloc_addr, int skip_ifunc)
+{
+  elf_machine_reloc (map, reloc->r_info, sym, version, reloc_addr,
+		     reloc->r_addend, 0);
+}
+
+auto inline void
+__attribute__((always_inline))
+elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
+			   void *const reloc_addr)
+{
+}
+
+#ifndef RTLD_BOOTSTRAP
+/* Relocate GOT. */
+auto inline void
+__attribute__((always_inline))
+elf_machine_got_rel (struct link_map *map, int lazy)
+{
+  ElfW(Addr) *got;
+  ElfW(Sym) *sym;
+  const ElfW(Half) *vernum;
+  int i, n, symidx;
+
+#define RESOLVE_GOTSYM(sym,vernum,sym_index,reloc)			  \
+    ({									  \
+      const ElfW(Sym) *ref = sym;					  \
+      const struct r_found_version *version				  \
+	= vernum ? &map->l_versions[vernum[sym_index] & 0x7fff] : NULL;	  \
+      struct link_map *sym_map;						  \
+      sym_map = RESOLVE_MAP (&ref, version, reloc);			  \
+      ref ? sym_map->l_addr + ref->st_value : 0;			  \
+    })
+
+  if (map->l_info[VERSYMIDX (DT_VERSYM)] != NULL)
+    vernum = (const void *) D_PTR (map, l_info[VERSYMIDX (DT_VERSYM)]);
+  else
+    vernum = NULL;
+
+  got = (ElfW(Addr) *) D_PTR (map, l_info[DT_PLTGOT]);
+
+  n = map->l_info[DT_MIPS (LOCAL_GOTNO)]->d_un.d_val;
+  /* The dynamic linker's local got entries have already been relocated.  */
+  if (map != &GL(dl_rtld_map))
+    {
+      /* got[0] is reserved. got[1] is also reserved for the dynamic object
+	 generated by gnu ld. Skip these reserved entries from relocation.  */
+      i = (got[1] & ELF_MIPS_GNU_GOT1_MASK)? 2 : 1;
+
+      /* Add the run-time displacement to all local got entries if
+	 needed.  */
+      if (__builtin_expect (map->l_addr != 0, 0))
+	{
+	  while (i < n)
+	    got[i++] += map->l_addr;
+	}
+    }
+
+  /* Handle global got entries. */
+  got += n;
+  /* Keep track of the symbol index.  */
+  symidx = map->l_info[DT_MIPS (GOTSYM)]->d_un.d_val;
+  sym = (ElfW(Sym) *) D_PTR (map, l_info[DT_SYMTAB]) + symidx;
+  i = (map->l_info[DT_MIPS (SYMTABNO)]->d_un.d_val
+       - map->l_info[DT_MIPS (GOTSYM)]->d_un.d_val);
+
+  /* This loop doesn't handle Quickstart.  */
+  while (i--)
+    {
+      if (sym->st_shndx == SHN_UNDEF)
+	{
+	  if (ELFW(ST_TYPE) (sym->st_info) == STT_FUNC && sym->st_value
+	      && !(sym->st_other & STO_MIPS_PLT))
+	    {
+	      if (lazy)
+		*got = sym->st_value + map->l_addr;
+	      else
+		/* This is a lazy-binding stub, so we don't need the
+		   canonical address.  */
+		*got = RESOLVE_GOTSYM (sym, vernum, symidx, R_MIPS_JUMP_SLOT);
+	    }
+	  else
+	    *got = RESOLVE_GOTSYM (sym, vernum, symidx, R_MIPS_32);
+	}
+      else if (sym->st_shndx == SHN_COMMON)
+	*got = RESOLVE_GOTSYM (sym, vernum, symidx, R_MIPS_32);
+      else if (ELFW(ST_TYPE) (sym->st_info) == STT_FUNC
+	       && *got != sym->st_value)
+	{
+	  if (lazy)
+	    *got += map->l_addr;
+	  else
+	    /* This is a lazy-binding stub, so we don't need the
+	       canonical address.  */
+	    *got = RESOLVE_GOTSYM (sym, vernum, symidx, R_MIPS_JUMP_SLOT);
+	}
+      else if (ELFW(ST_TYPE) (sym->st_info) == STT_SECTION)
+	{
+	  if (sym->st_other == 0)
+	    *got += map->l_addr;
+	}
+      else
+	*got = RESOLVE_GOTSYM (sym, vernum, symidx, R_MIPS_32);
+
+      ++got;
+      ++sym;
+      ++symidx;
+    }
+
+#undef RESOLVE_GOTSYM
+}
+#endif
+
+/* Set up the loaded object described by L so its stub function
+   will jump to the on-demand fixup code __dl_runtime_resolve.  */
+
+auto inline int
+__attribute__((always_inline))
+elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
+{
+# ifndef RTLD_BOOTSTRAP
+  ElfW(Addr) *got;
+  extern void _dl_runtime_resolve (ElfW(Word));
+  extern void _dl_runtime_pltresolve (void);
+  extern int _dl_mips_gnu_objects;
+
+  if (lazy)
+    {
+      /* The GOT entries for functions have not yet been filled in.
+	 Their initial contents will arrange when called to put an
+	 offset into the .dynsym section in t8, the return address
+	 in t7 and then jump to _GLOBAL_OFFSET_TABLE[0].  */
+      got = (ElfW(Addr) *) D_PTR (l, l_info[DT_PLTGOT]);
+
+      /* This function will get called to fix up the GOT entry indicated by
+	 the register t8, and then jump to the resolved address.  */
+      got[0] = (ElfW(Addr)) &_dl_runtime_resolve;
+
+      /* Store l to _GLOBAL_OFFSET_TABLE[1] for gnu object. The MSB
+	 of got[1] of a gnu object is set to identify gnu objects.
+	 Where we can store l for non gnu objects? XXX  */
+      if ((got[1] & ELF_MIPS_GNU_GOT1_MASK) != 0)
+	got[1] = ((ElfW(Addr)) l | ELF_MIPS_GNU_GOT1_MASK);
+      else
+	_dl_mips_gnu_objects = 0;
+    }
+
+  /* Relocate global offset table.  */
+  elf_machine_got_rel (l, lazy);
+
+  /* If using PLTs, fill in the first two entries of .got.plt.  */
+  if (l->l_info[DT_JMPREL] && lazy)
+    {
+      ElfW(Addr) *gotplt;
+      gotplt = (ElfW(Addr) *) D_PTR (l, l_info[DT_MIPS (PLTGOT)]);
+      /* If a library is prelinked but we have to relocate anyway,
+	 we have to be able to undo the prelinking of .got.plt.
+	 The prelinker saved the address of .plt for us here.  */
+      if (gotplt[1])
+	l->l_mach.plt = gotplt[1] + l->l_addr;
+      gotplt[0] = (ElfW(Addr)) &_dl_runtime_pltresolve;
+      gotplt[1] = (ElfW(Addr)) l;
+    }
+
+# endif
+  return lazy;
+}
+
+#endif /* RESOLVE_MAP */