Add sparc64 TLS and NPTL support.

	* elf/tls-macros.h: Add Sparc64 defines.
	* sysdeps/sparc/sparc64/dl-machine.h (sparc64_fixup_plt): Mark as
	always_inline.
	(elf_machine_fixup_plt): Likewise.
	(elf_machine_rela): Handle TLS relocations.
	(elf_machine_type_cleaa): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
	(SYSCALL_ERROR_HANDLER_ENTRY): Use sethi/or for GOT reloc.
	It does not always fit in R_SPARC_GOT13 when building -fPIC.
	Also, add TLS handling.
	* sysdeps/unix/sysv/linux/configure.in (arch_minimum_kernel):
	Increase it to 2.4.21 for sparc64.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: NULL terminate
	backtrace by zero'ing out %fp.  Store away flags, func_ptr,
	and func_arg in global registers not local registers.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Handle PTID, TLS,
	and CTID arguments properly.  Add RESET_PID handling.
	* sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: Rework so that we
	do not invoke __sigprocmask().  We can always assume rt signals
	are present on sparc64, so just do an inline syscall.

2005-04-13  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/sparc/sparc64/dl-machine.h: Add dl_machine_h multiple
	inclusion guard for the first half of the header.
	(elf_machine_type_class, ELF_MACHINE_JMP_SLOT, ELF_MACHINE_NO_REL,
	ELF_MACHINE_PLTREL_OVERLAP, elf_machine_runtime_setup,
	elf_machine_relplt, DL_STACK_END, RTLD_START): Move into the
	#ifndef dl_machine_h guarded part of the header.

12 files changed, 596 insertions, 253 deletions

diff --git a/ChangeLog b/ChangeLog
index cedc4c012e..7a715243c7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,36 @@
+2005-04-13  David S. Miller  <davem@davemloft.net>
+
+	Add sparc64 TLS and NPTL support.
+	* elf/tls-macros.h: Add Sparc64 defines.
+	* sysdeps/sparc/sparc64/dl-machine.h (sparc64_fixup_plt): Mark as
+	always_inline.
+	(elf_machine_fixup_plt): Likewise.
+	(elf_machine_rela): Handle TLS relocations.
+	(elf_machine_type_cleaa): Likewise.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
+	(SYSCALL_ERROR_HANDLER_ENTRY): Use sethi/or for GOT reloc.
+	It does not always fit in R_SPARC_GOT13 when building -fPIC.
+	Also, add TLS handling.
+	* sysdeps/unix/sysv/linux/configure.in (arch_minimum_kernel):
+	Increase it to 2.4.21 for sparc64.
+	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: NULL terminate
+	backtrace by zero'ing out %fp.  Store away flags, func_ptr,
+	and func_arg in global registers not local registers.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Handle PTID, TLS,
+	and CTID arguments properly.  Add RESET_PID handling.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: Rework so that we
+	do not invoke __sigprocmask().  We can always assume rt signals
+	are present on sparc64, so just do an inline syscall.
+
+2005-04-13  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/sparc/sparc64/dl-machine.h: Add dl_machine_h multiple
+	inclusion guard for the first half of the header.
+	(elf_machine_type_class, ELF_MACHINE_JMP_SLOT, ELF_MACHINE_NO_REL,
+	ELF_MACHINE_PLTREL_OVERLAP, elf_machine_runtime_setup,
+	elf_machine_relplt, DL_STACK_END, RTLD_START): Move into the
+	#ifndef dl_machine_h guarded part of the header.
+
 2005-04-14  Ulrich Drepper  <drepper@redhat.com>
 
 	* posix/execvp.c (execvp): Use file name including path when
diff --git a/elf/tls-macros.h b/elf/tls-macros.h
index f734417149..0ae9e65dc0 100644
--- a/elf/tls-macros.h
+++ b/elf/tls-macros.h
@@ -441,6 +441,74 @@ register void *__gp __asm__("$29");
 	    "o5", "o7", "cc");						      \
      __o0; })
 
+#elif defined __sparc__ && defined __arch64__
+
+# define TLS_LE(x) \
+  ({ int *__l;								      \
+     asm ("sethi %%tle_hix22(" #x "), %0" : "=r" (__l));		      \
+     asm ("xor %1, %%tle_lox10(" #x "), %0" : "=r" (__l) : "r" (__l));	      \
+     asm ("add %%g7, %1, %0" : "=r" (__l) : "r" (__l));			      \
+     __l; })
+
+# ifdef __PIC__
+#  define TLS_LOAD_PIC \
+  ({ long pc, got;							      \
+     asm ("sethi %%hi(_GLOBAL_OFFSET_TABLE_-4), %1\n\t"			      \
+	  "rd %%pc, %0\n\t"						      \
+	  "add %1, %%lo(_GLOBAL_OFFSET_TABLE_+4), %1\n\t"		      \
+	  "add %1, %0, %1\n\t"						      \
+	  : "=r" (pc), "=r" (got));					      \
+     got; })
+# else
+#  define TLS_LOAD_PIC \
+   ({ long got;								      \
+      asm (".hidden _GLOBAL_OFFSET_TABLE_\n\t"				      \
+	   "sethi %%hi(_GLOBAL_OFFSET_TABLE_), %0\n\t"			      \
+	   "or %0, %%lo(_GLOBAL_OFFSET_TABLE_), %0"			      \
+	   : "=r" (got));						      \
+      got; })
+# endif
+
+# define TLS_IE(x) \
+  ({ int *__l;								      \
+     asm ("sethi %%tie_hi22(" #x "), %0" : "=r" (__l));			      \
+     asm ("add %1, %%tie_lo10(" #x "), %0" : "=r" (__l) : "r" (__l));	      \
+     asm ("ldx [%1 + %2], %0, %%tie_ldx(" #x ")"			      \
+	  : "=r" (__l) : "r" (TLS_LOAD_PIC), "r" (__l));		      \
+     asm ("add %%g7, %1, %0, %%tie_add(" #x ")" : "=r" (__l) : "r" (__l));    \
+     __l; })
+
+# define TLS_LD(x) \
+  ({ int *__l; register void *__o0 asm ("%o0");				      \
+     long __o;								      \
+     asm ("sethi %%tldm_hi22(" #x "), %0" : "=r" (__l));		      \
+     asm ("add %1, %%tldm_lo10(" #x "), %0" : "=r" (__l) : "r" (__l));	      \
+     asm ("add %1, %2, %0, %%tldm_add(" #x ")"				      \
+	  : "=r" (__o0) : "r" (TLS_LOAD_PIC), "r" (__l));		      \
+     asm ("call __tls_get_addr, %%tgd_call(" #x ")\n\t"			      \
+	  " nop"							      \
+	  : "=r" (__o0) : "0" (__o0)					      \
+	  : "g1", "g2", "g3", "g4", "g5", "g6", "o1", "o2", "o3", "o4",	      \
+	    "o5", "o7", "cc");						      \
+     asm ("sethi %%tldo_hix22(" #x "), %0" : "=r" (__o));		      \
+     asm ("xor %1, %%tldo_lox10(" #x "), %0" : "=r" (__o) : "r" (__o));	      \
+     asm ("add %1, %2, %0, %%tldo_add(" #x ")" : "=r" (__l)		      \
+	  : "r" (__o0), "r" (__o));					      \
+     __l; })
+
+# define TLS_GD(x) \
+  ({ int *__l; register void *__o0 asm ("%o0");				      \
+     asm ("sethi %%tgd_hi22(" #x "), %0" : "=r" (__l));			      \
+     asm ("add %1, %%tgd_lo10(" #x "), %0" : "=r" (__l) : "r" (__l));	      \
+     asm ("add %1, %2, %0, %%tgd_add(" #x ")"				      \
+	  : "=r" (__o0) : "r" (TLS_LOAD_PIC), "r" (__l));		      \
+     asm ("call __tls_get_addr, %%tgd_call(" #x ")\n\t"			      \
+	  " nop"							      \
+	  : "=r" (__o0) : "0" (__o0)					      \
+	  : "g1", "g2", "g3", "g4", "g5", "g6", "o1", "o2", "o3", "o4",	      \
+	    "o5", "o7", "cc");						      \
+     __o0; })
+
 #elif defined __s390x__
 
 # define TLS_LE(x) \
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 96b35d6958..8de78a3ccd 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,8 @@
+2005-04-13  David S. Miller  <davem@davemloft.net>
+
+	* sysdeps/sparc/sparc64/jmpbuf-unwind.h: New file.
+	* sysdeps/sparc/sparc64/clone.S: New file.
+
 2005-04-05  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/pthread/pthread.h (__pthread_cleanup_routine): Use
diff --git a/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h b/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
new file mode 100644
index 0000000000..77321aad3f
--- /dev/null
+++ b/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 2005 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David S. Miller <davem@davemloft.net>, 2005.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <setjmp.h>
+#include <stdint.h>
+#include <unwind.h>
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+  _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+  ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[0].uc_mcontext.mc_fp - (_adj))
+
+/* We use the normal lobngjmp for unwinding.  */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
new file mode 100644
index 0000000000..410f32017a
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -0,0 +1,2 @@
+#define RESET_PID
+#include <sysdeps/unix/sysv/linux/sparc/sparc64/clone.S>
diff --git a/sysdeps/sparc/sparc64/dl-machine.h b/sysdeps/sparc/sparc64/dl-machine.h
index e2089cd039..ce9b8c9dd9 100644
--- a/sysdeps/sparc/sparc64/dl-machine.h
+++ b/sysdeps/sparc/sparc64/dl-machine.h
@@ -18,6 +18,9 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#ifndef dl_machine_h
+#define dl_machine_h
+
 #define ELF_MACHINE_NAME "sparc64"
 
 #include <string.h>
@@ -88,7 +91,7 @@ elf_machine_load_address (void)
 
 /* We have 4 cases to handle.  And we code different code sequences
    for each one.  I love V9 code models...  */
-static inline void
+static inline void __attribute__ ((always_inline))
 sparc64_fixup_plt (struct link_map *map, const Elf64_Rela *reloc,
 		   Elf64_Addr *reloc_addr, Elf64_Addr value,
 		   Elf64_Addr high, int t)
@@ -212,7 +215,7 @@ sparc64_fixup_plt (struct link_map *map, const Elf64_Rela *reloc,
     }
 }
 
-static inline Elf64_Addr
+static inline Elf64_Addr __attribute__ ((always_inline))
 elf_machine_fixup_plt (struct link_map *map, lookup_t t,
 		       const Elf64_Rela *reloc,
 		       Elf64_Addr *reloc_addr, Elf64_Addr value)
@@ -233,243 +236,21 @@ elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
   return value;
 }
 
-#define ARCH_LA_PLTENTER	sparc64_gnu_pltenter
-#define ARCH_LA_PLTEXIT		sparc64_gnu_pltexit
-
-#ifdef RESOLVE_MAP
-
-/* 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_rela (struct link_map *map, const Elf64_Rela *reloc,
-		  const Elf64_Sym *sym, const struct r_found_version *version,
-		  void *const reloc_addr_arg)
-{
-  Elf64_Addr *const reloc_addr = reloc_addr_arg;
-  const unsigned long int r_type = ELF64_R_TYPE_ID (reloc->r_info);
-
-#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
-  if (__builtin_expect (r_type == R_SPARC_RELATIVE, 0))
-    *reloc_addr = map->l_addr + reloc->r_addend;
-# ifndef RTLD_BOOTSTRAP
-  else if (r_type == R_SPARC_NONE) /* Who is Wilbur? */
-    return;
-# endif
-  else
-#endif
-    {
-#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
-      const Elf64_Sym *const refsym = sym;
-#endif
-      Elf64_Addr value;
-#ifndef RESOLVE_CONFLICT_FIND_MAP
-      if (sym->st_shndx != SHN_UNDEF &&
-	  ELF64_ST_BIND (sym->st_info) == STB_LOCAL)
-	value = map->l_addr;
-      else
-	{
-	  struct link_map *sym_map;
-
-	  sym_map = RESOLVE_MAP (&sym, version, r_type);
-	  value = (sym_map == NULL) ? 0 : (sym_map->l_addr + sym->st_value);
-	}
-#else
-      value = 0;
-#endif
-      value += reloc->r_addend;	/* Assume copy relocs have zero addend.  */
-
-      switch (r_type)
-	{
-#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
-	case R_SPARC_COPY:
-	  if (sym == NULL)
-	    /* This can happen in trace mode if an object could not be
-	       found.  */
-	    break;
-	  if (sym->st_size > refsym->st_size
-	      || (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
-	    {
-	      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_arg, (void *) value,
-		  MIN (sym->st_size, refsym->st_size));
-	  break;
-#endif
-	case R_SPARC_64:
-	case R_SPARC_GLOB_DAT:
-	  *reloc_addr = value;
-	  break;
-#ifndef RTLD_BOOTSTRAP
-	case R_SPARC_8:
-	  *(char *) reloc_addr = value;
-	  break;
-	case R_SPARC_16:
-	  *(short *) reloc_addr = value;
-	  break;
-	case R_SPARC_32:
-	  *(unsigned int *) reloc_addr = value;
-	  break;
-	case R_SPARC_DISP8:
-	  *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
-	  break;
-	case R_SPARC_DISP16:
-	  *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
-	  break;
-	case R_SPARC_DISP32:
-	  *(unsigned int *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
-	  break;
-	case R_SPARC_WDISP30:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & 0xc0000000) |
-	     ((value - (Elf64_Addr) reloc_addr) >> 2));
-	  break;
-
-	/* MEDLOW code model relocs */
-	case R_SPARC_LO10:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & ~0x3ff) |
-	     (value & 0x3ff));
-	  break;
-	case R_SPARC_HI22:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & 0xffc00000) |
-	     (value >> 10));
-	  break;
-	case R_SPARC_OLO10:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & ~0x1fff) |
-	     (((value & 0x3ff) + ELF64_R_TYPE_DATA (reloc->r_info)) & 0x1fff));
-	  break;
-
-	/* MEDMID code model relocs */
-	case R_SPARC_H44:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & 0xffc00000) |
-	     (value >> 22));
-	  break;
-	case R_SPARC_M44:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & ~0x3ff) |
-	     ((value >> 12) & 0x3ff));
-	  break;
-	case R_SPARC_L44:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & ~0xfff) |
-	     (value & 0xfff));
-	  break;
-
-	/* MEDANY code model relocs */
-	case R_SPARC_HH22:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & 0xffc00000) |
-	     (value >> 42));
-	  break;
-	case R_SPARC_HM10:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & ~0x3ff) |
-	     ((value >> 32) & 0x3ff));
-	  break;
-	case R_SPARC_LM22:
-	  *(unsigned int *) reloc_addr =
-	    ((*(unsigned int *)reloc_addr & 0xffc00000) |
-	     ((value >> 10) & 0x003fffff));
-	  break;
-#endif
-	case R_SPARC_JMP_SLOT:
-#ifdef RESOLVE_CONFLICT_FIND_MAP
-	  /* R_SPARC_JMP_SLOT conflicts against .plt[32768+]
-	     relocs should be turned into R_SPARC_64 relocs
-	     in .gnu.conflict section.
-	     r_addend non-zero does not mean it is a .plt[32768+]
-	     reloc, instead it is the actual address of the function
-	     to call.  */
-	  sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0);
-#else
-	  sparc64_fixup_plt (map, reloc, reloc_addr, value,
-			     reloc->r_addend, 0);
-#endif
-	  break;
-#ifndef RTLD_BOOTSTRAP
-	case R_SPARC_UA16:
-	  ((unsigned char *) reloc_addr_arg) [0] = value >> 8;
-	  ((unsigned char *) reloc_addr_arg) [1] = value;
-	  break;
-	case R_SPARC_UA32:
-	  ((unsigned char *) reloc_addr_arg) [0] = value >> 24;
-	  ((unsigned char *) reloc_addr_arg) [1] = value >> 16;
-	  ((unsigned char *) reloc_addr_arg) [2] = value >> 8;
-	  ((unsigned char *) reloc_addr_arg) [3] = value;
-	  break;
-	case R_SPARC_UA64:
-	  if (! ((long) reloc_addr_arg & 3))
-	    {
-	      /* Common in .eh_frame */
-	      ((unsigned int *) reloc_addr_arg) [0] = value >> 32;
-	      ((unsigned int *) reloc_addr_arg) [1] = value;
-	      break;
-	    }
-	  ((unsigned char *) reloc_addr_arg) [0] = value >> 56;
-	  ((unsigned char *) reloc_addr_arg) [1] = value >> 48;
-	  ((unsigned char *) reloc_addr_arg) [2] = value >> 40;
-	  ((unsigned char *) reloc_addr_arg) [3] = value >> 32;
-	  ((unsigned char *) reloc_addr_arg) [4] = value >> 24;
-	  ((unsigned char *) reloc_addr_arg) [5] = value >> 16;
-	  ((unsigned char *) reloc_addr_arg) [6] = value >> 8;
-	  ((unsigned char *) reloc_addr_arg) [7] = value;
-	  break;
-#endif
-#if !defined RTLD_BOOTSTRAP || defined _NDEBUG
-	default:
-	  _dl_reloc_bad_type (map, r_type, 0);
-	  break;
-#endif
-	}
-    }
-}
-
-auto inline void
-__attribute__ ((always_inline))
-elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
-			   void *const reloc_addr_arg)
-{
-  Elf64_Addr *const reloc_addr = reloc_addr_arg;
-  *reloc_addr = l_addr + reloc->r_addend;
-}
-
-auto inline void
-__attribute__ ((always_inline))
-elf_machine_lazy_rel (struct link_map *map,
-		      Elf64_Addr l_addr, const Elf64_Rela *reloc)
-{
-  switch (ELF64_R_TYPE (reloc->r_info))
-    {
-    case R_SPARC_NONE:
-      break;
-    case R_SPARC_JMP_SLOT:
-      break;
-    default:
-      _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 1);
-      break;
-    }
-}
-
-#endif	/* RESOLVE */
-
 /* 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_NOCOPY 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) \
+#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD)
+# define elf_machine_type_class(type) \
+  ((((type) == R_SPARC_JMP_SLOT						      \
+     || ((type) >= R_SPARC_TLS_GD_HI22 && (type) <= R_SPARC_TLS_TPOFF64))     \
+    * ELF_RTYPE_CLASS_PLT)						      \
+   | (((type) == R_SPARC_COPY) * ELF_RTYPE_CLASS_COPY))
+#else
+# define elf_machine_type_class(type) \
   ((((type) == R_SPARC_JMP_SLOT) * ELF_RTYPE_CLASS_PLT)	\
    | (((type) == R_SPARC_COPY) * ELF_RTYPE_CLASS_COPY))
+#endif
 
 /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
 #define ELF_MACHINE_JMP_SLOT	R_SPARC_JMP_SLOT
@@ -701,3 +482,290 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 "	 add	%sp, 6*8, %sp\n"					\
 "	.size	_dl_start_user, . - _dl_start_user\n"			\
 "	.previous\n");
+
+#endif /* dl_machine_h */
+
+#define ARCH_LA_PLTENTER	sparc64_gnu_pltenter
+#define ARCH_LA_PLTEXIT		sparc64_gnu_pltexit
+
+#ifdef RESOLVE_MAP
+
+/* 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_rela (struct link_map *map, const Elf64_Rela *reloc,
+		  const Elf64_Sym *sym, const struct r_found_version *version,
+		  void *const reloc_addr_arg)
+{
+  Elf64_Addr *const reloc_addr = reloc_addr_arg;
+#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
+  const Elf64_Sym *const refsym = sym;
+#endif
+  Elf64_Addr value;
+  const unsigned long int r_type = ELF64_R_TYPE_ID (reloc->r_info);
+#if !defined RESOLVE_CONFLICT_FIND_MAP
+  struct link_map *sym_map = NULL;
+#endif
+
+#if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
+  /* 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 (_dl_rtld_map);
+#endif
+
+  if (__builtin_expect (r_type == R_SPARC_NONE, 0))
+    return;
+
+#if !defined RTLD_BOOTSTRAP || !defined HAVE_Z_COMBRELOC
+  if (__builtin_expect (r_type == R_SPARC_RELATIVE, 0))
+    {
+# if !defined RTLD_BOOTSTRAP && !defined HAVE_Z_COMBRELOC
+      if (map != &_dl_rtld_map) /* Already done in rtld itself. */
+# endif
+	*reloc_addr += map->l_addr + reloc->r_addend;
+      return;
+    }
+#endif
+
+#ifndef RESOLVE_CONFLICT_FIND_MAP
+  if (__builtin_expect (ELF64_ST_BIND (sym->st_info) == STB_LOCAL, 0)
+      && sym->st_shndx != SHN_UNDEF)
+    {
+      value = map->l_addr;
+    }
+  else
+    {
+      sym_map = RESOLVE_MAP (&sym, version, r_type);
+      value = sym_map == NULL ? 0 : sym_map->l_addr + sym->st_value;
+    }
+#else
+  value = 0;
+#endif
+
+  value += reloc->r_addend;	/* Assume copy relocs have zero addend.  */
+
+  switch (r_type)
+    {
+#if !defined RTLD_BOOTSTRAP && !defined RESOLVE_CONFLICT_FIND_MAP
+    case R_SPARC_COPY:
+      if (sym == NULL)
+	/* This can happen in trace mode if an object could not be
+	   found.  */
+	break;
+      if (sym->st_size > refsym->st_size
+	  || (GLRO(dl_verbose) && sym->st_size < refsym->st_size))
+	{
+	  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_arg, (void *) value,
+	      MIN (sym->st_size, refsym->st_size));
+      break;
+#endif
+    case R_SPARC_64:
+    case R_SPARC_GLOB_DAT:
+      *reloc_addr = value;
+      break;
+    case R_SPARC_JMP_SLOT:
+#ifdef RESOLVE_CONFLICT_FIND_MAP
+      /* R_SPARC_JMP_SLOT conflicts against .plt[32768+]
+	 relocs should be turned into R_SPARC_64 relocs
+	 in .gnu.conflict section.
+	 r_addend non-zero does not mean it is a .plt[32768+]
+	 reloc, instead it is the actual address of the function
+	 to call.  */
+      sparc64_fixup_plt (NULL, reloc, reloc_addr, value, 0, 0);
+#else
+      sparc64_fixup_plt (map, reloc, reloc_addr, value, reloc->r_addend, 0);
+#endif
+      break;
+#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD) \
+    && !defined RESOLVE_CONFLICT_FIND_MAP
+    case R_SPARC_TLS_DTPMOD64:
+      /* Get the information from the link map returned by the
+	 resolv function.  */
+      if (sym_map != NULL)
+	*reloc_addr = sym_map->l_tls_modid;
+      break;
+    case R_SPARC_TLS_DTPOFF64:
+      /* During relocation all TLS symbols are defined and used.
+	 Therefore the offset is already correct.  */
+      *reloc_addr = (sym == NULL ? 0 : sym->st_value) + reloc->r_addend;
+      break;
+    case R_SPARC_TLS_TPOFF64:
+      /* The offset is negative, forward from the thread pointer.  */
+      /* We know the offset of object the symbol is contained in.
+	 It is a negative value which will be added to the
+	 thread pointer.  */
+      if (sym != NULL)
+	{
+	  CHECK_STATIC_TLS (map, sym_map);
+	  *reloc_addr = sym->st_value - sym_map->l_tls_offset
+	    + reloc->r_addend;
+	}
+      break;
+# ifndef RTLD_BOOTSTRAP
+    case R_SPARC_TLS_LE_HIX22:
+    case R_SPARC_TLS_LE_LOX10:
+      if (sym != NULL)
+	{
+	  CHECK_STATIC_TLS (map, sym_map);
+	  value = sym->st_value - sym_map->l_tls_offset
+	    + reloc->r_addend;
+	  if (r_type == R_SPARC_TLS_LE_HIX22)
+	    *reloc_addr = (*reloc_addr & 0xffc00000) | ((~value) >> 10);
+	  else
+	    *reloc_addr = (*reloc_addr & 0xffffe000) | (value & 0x3ff)
+	      | 0x1c00;
+	}
+      break;
+# endif
+#endif
+#ifndef RTLD_BOOTSTRAP
+    case R_SPARC_8:
+      *(char *) reloc_addr = value;
+      break;
+    case R_SPARC_16:
+      *(short *) reloc_addr = value;
+      break;
+    case R_SPARC_32:
+      *(unsigned int *) reloc_addr = value;
+      break;
+    case R_SPARC_DISP8:
+      *(char *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
+      break;
+    case R_SPARC_DISP16:
+      *(short *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
+      break;
+    case R_SPARC_DISP32:
+      *(unsigned int *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
+      break;
+    case R_SPARC_WDISP30:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & 0xc0000000) |
+	 ((value - (Elf64_Addr) reloc_addr) >> 2));
+      break;
+
+      /* MEDLOW code model relocs */
+    case R_SPARC_LO10:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & ~0x3ff) |
+	 (value & 0x3ff));
+      break;
+    case R_SPARC_HI22:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & 0xffc00000) |
+	 (value >> 10));
+      break;
+    case R_SPARC_OLO10:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & ~0x1fff) |
+	 (((value & 0x3ff) + ELF64_R_TYPE_DATA (reloc->r_info)) & 0x1fff));
+      break;
+
+      /* MEDMID code model relocs */
+    case R_SPARC_H44:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & 0xffc00000) |
+	 (value >> 22));
+      break;
+    case R_SPARC_M44:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & ~0x3ff) |
+	 ((value >> 12) & 0x3ff));
+      break;
+    case R_SPARC_L44:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & ~0xfff) |
+	 (value & 0xfff));
+      break;
+
+      /* MEDANY code model relocs */
+    case R_SPARC_HH22:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & 0xffc00000) |
+	 (value >> 42));
+      break;
+    case R_SPARC_HM10:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & ~0x3ff) |
+	 ((value >> 32) & 0x3ff));
+      break;
+    case R_SPARC_LM22:
+      *(unsigned int *) reloc_addr =
+	((*(unsigned int *)reloc_addr & 0xffc00000) |
+	 ((value >> 10) & 0x003fffff));
+      break;
+    case R_SPARC_UA16:
+      ((unsigned char *) reloc_addr_arg) [0] = value >> 8;
+      ((unsigned char *) reloc_addr_arg) [1] = value;
+      break;
+    case R_SPARC_UA32:
+      ((unsigned char *) reloc_addr_arg) [0] = value >> 24;
+      ((unsigned char *) reloc_addr_arg) [1] = value >> 16;
+      ((unsigned char *) reloc_addr_arg) [2] = value >> 8;
+      ((unsigned char *) reloc_addr_arg) [3] = value;
+      break;
+    case R_SPARC_UA64:
+      if (! ((long) reloc_addr_arg & 3))
+	{
+	  /* Common in .eh_frame */
+	  ((unsigned int *) reloc_addr_arg) [0] = value >> 32;
+	  ((unsigned int *) reloc_addr_arg) [1] = value;
+	  break;
+	}
+      ((unsigned char *) reloc_addr_arg) [0] = value >> 56;
+      ((unsigned char *) reloc_addr_arg) [1] = value >> 48;
+      ((unsigned char *) reloc_addr_arg) [2] = value >> 40;
+      ((unsigned char *) reloc_addr_arg) [3] = value >> 32;
+      ((unsigned char *) reloc_addr_arg) [4] = value >> 24;
+      ((unsigned char *) reloc_addr_arg) [5] = value >> 16;
+      ((unsigned char *) reloc_addr_arg) [6] = value >> 8;
+      ((unsigned char *) reloc_addr_arg) [7] = value;
+      break;
+#endif
+#if !defined RTLD_BOOTSTRAP || defined _NDEBUG
+    default:
+      _dl_reloc_bad_type (map, r_type, 0);
+      break;
+#endif
+    }
+}
+
+auto inline void
+__attribute__ ((always_inline))
+elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
+			   void *const reloc_addr_arg)
+{
+  Elf64_Addr *const reloc_addr = reloc_addr_arg;
+  *reloc_addr = l_addr + reloc->r_addend;
+}
+
+auto inline void
+__attribute__ ((always_inline))
+elf_machine_lazy_rel (struct link_map *map,
+		      Elf64_Addr l_addr, const Elf64_Rela *reloc)
+{
+  switch (ELF64_R_TYPE (reloc->r_info))
+    {
+    case R_SPARC_NONE:
+      break;
+    case R_SPARC_JMP_SLOT:
+      break;
+    default:
+      _dl_reloc_bad_type (map, ELFW(R_TYPE) (reloc->r_info), 1);
+      break;
+    }
+}
+
+#endif	/* RESOLVE_MAP */
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index d059143396..325073c62c 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -138,6 +138,10 @@ case "$machine" in
     arch_minimum_kernel=2.3.99
     libc_cv_gcc_unwind_find_fde=yes
     ;;
+  sparc/sparc64*)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.4.21
+    ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
     arch_minimum_kernel=2.0.10
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index e3fccb4c9b..88feb868fe 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.in
@@ -98,6 +98,10 @@ case "$machine" in
     arch_minimum_kernel=2.3.99
     libc_cv_gcc_unwind_find_fde=yes
     ;;
+  sparc/sparc64*)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.4.21
+    ;;
   sparc*)
     libc_cv_gcc_unwind_find_fde=yes
     arch_minimum_kernel=2.0.10
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
index 66cdbf3ca7..4d8fdb8200 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S
@@ -40,11 +40,19 @@ __clone:
 	save	%sp,-96,%sp
 
 	/* sanity check arguments */
-	tst	%i0
+	orcc	%i0,%g0,%g2
 	be	.Lerror
 	 orcc	%i1,%g0,%o1
 	be	.Lerror
 	 mov	%i2,%o0
+
+	/* The child_stack is the top of the stack, allocate one
+	   whole stack frame from that as this is what the kernel
+	   expects.  */
+	sub	%o1, 96, %o1
+	mov	%i3, %g3
+	mov	%i2, %g4
+
 	/* ptid */
 	mov	%i4,%o2
 	/* tls */
@@ -76,19 +84,21 @@ __clone:
 __thread_start:
 #ifdef RESET_PID
 	sethi	%hi(CLONE_THREAD), %l0
-	andcc	%i2, %l0, %g0
+	andcc	%g4, %l0, %g0
 	bne	1f
-	 andcc	%i2, CLONE_VM, %g0
+	 andcc	%g4, CLONE_VM, %g0
 	bne,a	2f
 	 mov	-1,%o0
 	set	__NR_getpid,%g1
 	ta	0x10
-2:	st	%o0,[%g7 + PID]
+2:
+	st	%o0,[%g7 + PID]
 	st	%o0,[%g7 + TID]
 1:
 #endif
-	call	%i0
-	 mov	%i3,%o0
+	mov	%g0, %fp	/* terminate backtrace */
+	call	%g2
+	 mov	%g3,%o0
 	call	_exit,0
 	 nop
 
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index a7c248b2e8..f6134599e2 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -22,8 +22,16 @@
 
 #include <asm/errno.h>
 #include <asm/unistd.h>
+#include <tcb-offsets.h>
 
-/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */
+#define CLONE_VM	0x00000100
+#define CLONE_THREAD	0x00010000
+
+/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
+	     pid_t *ptid, void *tls, pid_t *ctid); */
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
 
 	.text
 	.align	4
@@ -34,22 +42,31 @@ __clone:
 	save	%sp, -192, %sp
 
 	/* sanity check arguments */
-	brz,pn	%i0, 99f
-	 mov	%i0, %l0		/* save fn */
-	brz,pn	%i1, 99f
-	 mov	%i3, %l3		/* save arg */
+	brz,pn	%i0, 99f		/* fn non-NULL? */
+	 mov	%i0, %g2
+	brz,pn	%i1, 99f		/* child_stack non-NULL? */
+	 mov	%i2, %o0		/* clone flags */
+
+	/* The child_stack is the top of the stack, allocate one
+	   whole stack frame from that as this is what the kernel
+	   expects.  Also, subtract STACK_BIAS.  */
+	sub	%i1, 192 + 0x7ff, %o1
+	mov	%i3, %g3
+	mov	%i2, %g4
+
+	mov	%i4,%o2			/* PTID */
+	mov	%i5,%o3			/* TLS */
+	ldx	[%fp+0x7ff+176],%o4	/* CTID */
 
 	/* Do the system call */
-	sub	%i1, 0x7ff, %o1
-	mov	%i2, %o0
 	set	__NR_clone, %g1
 	ta	0x6d
 	bcs,pn	%xcc, 99f
 	 nop
 	brnz,pn	%o1, __thread_start
-	 mov	%o0, %i0
+	 nop
 	ret
-	 restore
+	 restore %o0, %g0, %o0
 99:
 #ifndef _LIBC_REENTRANT
 #ifdef PIC
@@ -77,10 +94,22 @@ __clone:
 
 	.type __thread_start,@function
 __thread_start:
+#ifdef RESET_PID
+	sethi	%hi(CLONE_THREAD), %l0
+	andcc	%g4, %l0, %g0
+	bne,pt	%icc, 1f
+	 andcc	%g4, CLONE_VM, %g0
+	bne,a,pn %icc, 2f
+	 mov	-1,%o0
+	set	__NR_getpid,%g1
+	ta	0x6d
+2:	st	%o0,[%g7 + PID]
+	st	%o0,[%g7 + TID]
+1:
+#endif
 	mov	%g0, %fp	/* terminate backtrace */
-	sub	%sp, 6*8, %sp	/* provide arg storage */
-	call	%l0
-	 mov	%l3,%o0
+	call	%g2
+	 mov	%g3,%o0
 	call	_exit,0
 	 nop
 	.size __thread_start, .-__thread_start
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c b/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c
index 2ec5bd39ad..40fab28d47 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/pause.c
@@ -1 +1,47 @@
-#include <sysdeps/posix/pause.c>
+/* pause -- suspend the process until a signal arrives.  POSIX.1 version.
+   Copyright (C) 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sysdep-cancel.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include <bp-checks.h>
+
+/* Suspend the process until a signal arrives.
+   This always returns -1 and sets errno to EINTR.  */
+int
+__libc_pause (void)
+{
+  sigset_t set;
+
+  __sigemptyset (&set);
+  INLINE_SYSCALL (rt_sigprocmask, 4, SIG_BLOCK, CHECK_SIGSET (NULL),
+		  CHECK_SIGSET_NULL_OK (&set), _NSIG / 8);
+
+  /* pause is a cancellation point, but so is sigsuspend.
+     So no need for anything special here.  */
+
+  return __sigsuspend (&set);
+}
+weak_alias (__libc_pause, pause)
+
+LIBC_CANCEL_HANDLED ();		/* sigsuspend handles our cancellation.  */
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
index 3c6492aeca..071aa3a310 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
@@ -85,11 +85,54 @@ SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler)			\
 	sethi	%hi(_GLOBAL_OFFSET_TABLE_-4), %l7;			\
 	call	__sparc64.get_pic.l7;					\
 	 add	%l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7;			\
-	ldx	[%l7 + rtld_errno], %l0;				\
+	sethi	%hi(rtld_errno), %g1;					\
+	or	%g1, %lo(rtld_errno), %g1;				\
+	ldx	[%l7 + %g1], %l0;					\
 	st	%i0, [%l0];						\
 	jmpl	%i7+8, %g0;						\
 	 restore %g0, -1, %o0;						\
 	.previous;
+#elif USE___THREAD
+# ifndef NOT_IN_libc
+#  define SYSCALL_ERROR_ERRNO __libc_errno
+# else
+#  define SYSCALL_ERROR_ERRNO errno
+# endif
+# ifdef SHARED
+#  define SYSCALL_ERROR_HANDLER						\
+	.section .gnu.linkonce.t.__sparc64.get_pic.l7,"ax",@progbits;	\
+	.globl __sparc64.get_pic.l7;					\
+	.hidden __sparc64.get_pic.l7;					\
+	.type __sparc64.get_pic.l7,@function;				\
+__sparc64.get_pic.l7:							\
+	retl;								\
+	 add	%o7, %l7, %l7;						\
+	.previous;							\
+SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler)			\
+	save	%sp,-192,%sp;						\
+	sethi	%tie_hi22(SYSCALL_ERROR_ERRNO), %l1;			\
+	sethi	%hi(_GLOBAL_OFFSET_TABLE_-4), %l7;			\
+	call	__sparc64.get_pic.l7;					\
+	 add	%l7, %lo(_GLOBAL_OFFSET_TABLE_+4), %l7;			\
+	add	%l1, %tie_lo10(SYSCALL_ERROR_ERRNO), %l1;		\
+	ldx	[%l7 + %l1], %l1, %tie_ldx(SYSCALL_ERROR_ERRNO);	\
+	st	%i0, [%g7 + %l1], %tie_add(SYSCALL_ERROR_ERRNO);	\
+	jmpl	%i7+8, %g0;						\
+	 restore %g0, -1, %o0;						\
+	.previous;
+# else
+#  define SYSCALL_ERROR_HANDLER						\
+SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler)			\
+	sethi	%tie_hi22(SYSCALL_ERROR_ERRNO), %g1;			\
+	sethi	%hi(_GLOBAL_OFFSET_TABLE_), %g2;			\
+	add	%g1, %tie_lo10(SYSCALL_ERROR_ERRNO), %g1;		\
+	add	%g2, %lo(_GLOBAL_OFFSET_TABLE_), %g2;			\
+	ldx	[%g2 + %g1], %g1, %tie_ldx(SYSCALL_ERROR_ERRNO);	\
+	st	%o0, [%g7 + %g1], %tie_add(SYSCALL_ERROR_ERRNO);	\
+	jmpl	%o7+8, %g0;						\
+	 mov	-1, %o0;						\
+	.previous;
+# endif
 #else
 # define SYSCALL_ERROR_HANDLER						\
 SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler)			\