Update.

1998-09-14  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* sysdeps/mach/hurd/dl-cache.c (_dl_unload_cache): New dummy
	function.  Reported by okuji@kuicr.kyoto-u.ac.jp [PR libc/789].

1998-09-15  David S. Miller  <davem@pierdol.cobaltmicro.com>

	* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_runtime_setup):
	Add profiling support.
	(TRAMPOLINE_TEMPLATE): New macro.
	(ELF_MACHINE_RUNTIME_TRAMPOLINE): Define in terms of that.
	(RTLD_START): Prettify, and set __libc_stack_end properly.
	(elf_machine_rela) [R_SPARC_COPY]: Remove RTLD_BOOTSTRAP ifndef
	and check for sym being NULL instead.
	* sysdeps/sparc/sparc64/addmul_1.S: Adjust to allocate 192 bytes
	of stack space.
	* sysdeps/sparc/sparc64/lshift.S: Likewise.
	* sysdeps/sparc/sparc64/mul_1.S: Likewise.
	* sysdeps/sparc/sparc64/rshift.S: Likewise.
	* sysdeps/sparc/sparc64/submul_1.S: Likewise.
	* sysdeps/sparc/sparc64/elf/crtbegin.S: Likewise and remove old
	MEDANY code model %g4 usage.
	* sysdeps/sparc/sparc64/elf/crtend.S: Likewise and remove old
	MEDANY code model %g4 usage.
	* sysdeps/sparc/sparc64/elf/start.S: Rework to not use old FULLANY
	code model address formation.
	* sysdeps/sparc/sparc64/dl-machine.h: Don't include link.h, do
	include elf/ldsodefs.h
	(DT_SPARC): Remove.
	(elf_machine_matches_host): It is now EM_SPARCV9.
	(elf_machine_dynamic): Clean up to remove ugly cast.
	(elf_machine_fixup_plt): Rework for new V9 ABI, add support for
	new PLT formats.
	(elf_machine_rela): Don't do anything at all for R_SPARC_NONE.
	Prettify rest of function.
	[R_SPARC_COPY]: Check for sym being NULL.
	[R_SPARC_32]: Handle it.
	[R_SPARC_H44, R_SPARC_M44, R_SPARC_L44]: Handle them for the
	MEDMID code model.
	[R_SPARC_HH22, R_SPARC_HM10, R_SPARC_LM22]: Handle them for the
	MEDANY code model.
	[R_SPARC_NONE]: Remove this case, as it is now checked earlier.
	(elf_machine_runtime_setup): Rewrite for new V9 ABI plt formats.
	Add profiling support.
	(TRAMPOLINE_TEMPLATE): New macro.
	(ELF_MACHINE_RUNTIME_TRAMPOLINE): Define in terms of that.
	(RTLD_START): Prettify and set __libc_stack_end.
	* sysdeps/unix/sysv/linux/sparc/bits/sigaction.h (SA_SIGINFO):
	Define.
	* sysdeps/unix/sysv/linux/sparc/bits/signum.h (_NSIG): Set to 64.
	(SIGRTMIN, SIGRTMAX, __SIGRTMIN, __SIGRTMAX): Define.
	* sysdeps/unix/sysv/linux/sparc/sparc32/brk.c (__brk): Remove
	unused variable scratch.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
	(__syscall_rt_sigaction, __rt_sigreturn_stub, __sigreturn_stub):
	Declare.
	(__sigaction): Rewrite rt_sigaction case to pass correct sigreturn
	stub to rt_sigaction syscalls.  Rewrite non-rt case to use correct
	old format kernel sigaction structures.
	* sysdeps/unix/sysv/linux/sparc/sparc64/ucontext.h: Move...
	* sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h: to here.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Dist: Remove ucontext.h
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h: Fix
	ucontext include.
	(_JMPBUF_UNWINDS): Define.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h: Declare
	statfs64 structure, which is exactly the same as the normal one.
	* sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Allocate 192 bytes
	of stack.  Use correct syscall trap number.  Add branch prediction
	settings to branch instructions.  Remove old MEDANY code model %g4
	referneces for non-PIC.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S: Add
	__libc_longjmp and __libc_siglongjmp strong aliases.
	* sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c (__readdir64):
	Also define to __no__readdir64_decl around readdir.c inclusion.
	(__readdir64): Add strong alias.
	* sysdeps/unix/sysv/linux/sparc/sparc64/socket.S: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list (getrlimit):
	Set strong and weak names properly.

1998-09-16 11:25  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/Makefile (AWK): Default to gawk if standalone.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (distribute): Undo last change.
	* Make-dist (+tsrc) [not subdir]: Also include indirection headers
	for sysdep headers.
	(+subdir-headers): Removed, unused.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* stdio-common/Makefile ($(inst_includedir)/bits/stdio_lim.h): Use
	$(do-install).

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makerules ($(+sysdir_pfx)sysd-Makefile): Don't check for
	absolute name in $(config-sysdirs), can never happen.
	($(+sysdir_pfx)sysd-rules): Likewise.
	* Makeconfig (full-config-sysdirs): Likewise.
	(all-Subdirs-files): Prepend $(..).

	* configure.in: Don't check for absolute name in $add_ons_pfx, can
	not happen.  Let --enable-add-ons=yes work if no add-ons actually
	exist.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Rules ($(common-objpfx)bits/stdio_%.h): Remove extra
	continuations in command.

1998-09-15  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libio/oldstdfiles.c (_IO_stdin_used): Update declaration.

28 files changed, 507 insertions, 177 deletions

diff --git a/sysdeps/mach/hurd/dl-cache.c b/sysdeps/mach/hurd/dl-cache.c
index e7aca39aee..8b47cf073b 100644
--- a/sysdeps/mach/hurd/dl-cache.c
+++ b/sysdeps/mach/hurd/dl-cache.c
@@ -22,3 +22,8 @@ _dl_load_cache_lookup (const char *name)
 {
   return 0;
 }
+
+void
+_dl_unload_cache (void)
+{
+}
diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h
index da15e94a69..e1fb2b68ce 100644
--- a/sysdeps/sparc/sparc32/dl-machine.h
+++ b/sysdeps/sparc/sparc32/dl-machine.h
@@ -101,14 +101,26 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 {
   Elf32_Addr *plt;
   extern void _dl_runtime_resolve (Elf32_Word);
+  extern void _dl_runtime_profile (Elf32_Word);
 
   if (l->l_info[DT_JMPREL] && lazy)
     {
+      Elf32_Addr rfunc;
+
       /* The entries for functions in the PLT have not yet been filled in.
 	 Their initial contents will arrange when called to set the high 22
 	 bits of %g1 with an offset into the .rela.plt section and jump to
 	 the beginning of the PLT.  */
       plt = (Elf32_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr);
+      if (! profile)
+	rfunc = (Elf32_Addr) &_dl_runtime_resolve;
+      else
+	{
+	  rfunc = (Elf32_Addr) &_dl_runtime_profile;
+
+	  if (_dl_name_match_p (_dl_profile, l))
+	    _dl_profile_map = l;
+	}
 
       /* The beginning of the PLT does:
 
@@ -123,8 +135,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 
       plt[0] = OPCODE_SAVE_SP;
       /* Construct PC-relative word address.  */
-      plt[1] = OPCODE_CALL | (((Elf32_Addr) &_dl_runtime_resolve -
-			       (Elf32_Addr) &plt[1]) >> 2);
+      plt[1] = OPCODE_CALL | ((rfunc - (Elf32_Addr) &plt[1]) >> 2);
       plt[2] = OPCODE_NOP;	/* Fill call delay slot.  */
       plt[3] = (Elf32_Addr) l;
     }
@@ -134,20 +145,36 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 
 /* This code is used in dl-runtime.c to call the `fixup' function
    and then redirect to the address it returns.  */
-#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
-	.globl _dl_runtime_resolve
-	.type _dl_runtime_resolve, @function
-_dl_runtime_resolve:
+#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name)	\
+  asm ( "\
+	.text
+	.globl	" #tramp_name "
+	.type	" #tramp_name ", @function
+	.align	32
+" #tramp_name ":
 	/* Set up the arguments to fixup --
 	   %o0 = link_map out of plt0
-	   %o1 = offset of reloc entry  */
+	   %o1 = offset of reloc entry
+	   %o2 = return address  */
 	ld	[%o7 + 8], %o0
 	srl	%g1, 10, %o1
-	call	fixup
+	mov	%i7, %o2
+	call	" #fixup_name "
 	 sub	%o1, 4*12, %o1
 	jmp	%o0
 	 restore
-	.size _dl_runtime_resolve, . - _dl_runtime_resolve");
+	.size	" #tramp_name ", . - " #tramp_name "
+	.previous")
+
+#ifndef PROF
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE 			\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_profile, profile_fixup);
+#else
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_profile, fixup);
+#endif
 
 /* Nonzero iff TYPE should not be allowed to resolve to one of
    the main executable's symbols, as for a COPY reloc.  */
@@ -171,9 +198,10 @@ _dl_runtime_resolve:
    its return value is the user program's entry point.  */
 
 #define RTLD_START __asm__ ("\
-.text
-	.globl _start
-	.type _start,@function
+	.text
+	.globl	_start
+	.type	_start, @function
+	.align	32
 _start:
   /* Allocate space for functions to drop their arguments.  */
 	sub	%sp, 6*4, %sp
@@ -181,8 +209,8 @@ _start:
 	call	_dl_start
 	 add	%sp, 22*4, %o0
 	/* FALTHRU */
-	.globl _dl_start_user
-	.type _dl_start_user,@function
+	.globl	_dl_start_user
+	.type	_dl_start_user, @function
 _dl_start_user:
   /* Load the PIC register.  */
 1:	call	2f
@@ -191,6 +219,12 @@ _dl_start_user:
 	add	%l7, %o7, %l7
   /* Save the user entry point address in %l0 */
 	mov	%o0, %l0
+  /* Store the highest stack address.  */
+	sethi	%hi(__libc_stack_end), %g2
+	or	%g2, %lo(__libc_stack_end), %g2
+	ld	[%l7 + %g2], %l1
+	add	%sp, 6*4, %l2
+	st	%l2, [%l1]
   /* See if we were run as a command with the executable file name as an
      extra leading argument.  If so, adjust the contents of the stack.  */
 	sethi	%hi(_dl_skip_args), %g2
@@ -230,7 +264,7 @@ _dl_start_user:
 	st	%i4, [%i1+4]
 	bne	23b
 	 add	%i1, 8, %i1
-  /* Load _dl_main_searchlist to pass to _dl_init_next.  */
+  /* Load searchlist of the main object to pass to _dl_init_next.  */
 3:	sethi	%hi(_dl_main_searchlist), %g1
 	or	%g1, %lo(_dl_main_searchlist), %g1
 	ld	[%l7+%g1], %l1
@@ -242,8 +276,7 @@ _dl_start_user:
 	beq	5f
 	 nop
 	jmpl	%o0, %o7
-	 nop
-	ba,a	4b
+	 sub	%o7, 28, %o7
   /* Clear the startup flag.  */
 5:	sethi	%hi(_dl_starting_up), %g1
 	or	%g1, %lo(_dl_starting_up), %g1
@@ -256,8 +289,8 @@ _dl_start_user:
   /* Jump to the user's entry point and deallocate the extra stack we got.  */
 	jmp	%l0
 	 add	%sp, 6*4, %sp
-	.size   _dl_start_user,.-_dl_start_user
-.previous");
+	.size   _dl_start_user, . - _dl_start_user
+	.previous");
 
 static inline void
 elf_machine_fixup_plt (struct link_map *map, const Elf32_Rela *reloc,
@@ -343,7 +376,10 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
       switch (ELF32_R_TYPE (reloc->r_info))
 	{
 	case R_SPARC_COPY:
-#ifndef RTLD_BOOTSTRAP
+	  if (sym == NULL)
+	    /* This can happen in trace mode if an object could not be
+	       found.  */
+	    break;
 	  if (sym->st_size > refsym->st_size
 	      || (_dl_verbose && sym->st_size < refsym->st_size))
 	    {
@@ -359,7 +395,6 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 	    }
 	  memcpy (reloc_addr, (void *) value, MIN (sym->st_size,
 						   refsym->st_size));
-#endif
 	  break;
 	case R_SPARC_GLOB_DAT:
 	case R_SPARC_32:
diff --git a/sysdeps/sparc/sparc64/addmul_1.S b/sysdeps/sparc/sparc64/addmul_1.S
index 260481230f..6782db77df 100644
--- a/sysdeps/sparc/sparc64/addmul_1.S
+++ b/sysdeps/sparc/sparc64/addmul_1.S
@@ -32,7 +32,7 @@
 
 ENTRY(__mpn_addmul_1)
 	!#PROLOGUE#	0
-	save	%sp,-128,%sp
+	save	%sp,-192,%sp
 	!#PROLOGUE#	1
 
 	sub	%g0,%i2,%o7
diff --git a/sysdeps/sparc/sparc64/dl-machine.h b/sysdeps/sparc/sparc64/dl-machine.h
index 788e239779..33def6b455 100644
--- a/sysdeps/sparc/sparc64/dl-machine.h
+++ b/sysdeps/sparc/sparc64/dl-machine.h
@@ -21,19 +21,15 @@
 
 #include <assert.h>
 #include <string.h>
-#include <link.h>
 #include <sys/param.h>
+#include <elf/ldsodefs.h>
 #include <sysdep.h>
 
-
-/* Translate a processor-specific dynamic tag to the index into l_info.  */
-#define DT_SPARC(x)	(DT_SPARC_##x - DT_LOPROC + DT_NUM)
-
 /* Return nonzero iff E_MACHINE is compatible with the running host.  */
 static inline int
 elf_machine_matches_host (Elf64_Half e_machine)
 {
-  return e_machine == EM_SPARC64;
+  return e_machine == EM_SPARCV9;
 }
 
 /* Return the link-time address of _DYNAMIC.  Conveniently, this is the
@@ -42,12 +38,11 @@ elf_machine_matches_host (Elf64_Half e_machine)
 static inline Elf64_Addr
 elf_machine_dynamic (void)
 {
-  register Elf64_Addr elf_pic_register __asm__("%l7");
+  register Elf64_Addr *elf_pic_register __asm__("%l7");
 
-  return *(Elf64_Addr *)elf_pic_register;
+  return *elf_pic_register;
 }
 
-
 /* Return the run-time load address of the shared object.  */
 static inline Elf64_Addr
 elf_machine_load_address (void)
@@ -67,21 +62,92 @@ elf_machine_load_address (void)
   return pc - *(Elf64_Addr *)(elf_pic_register + la);
 }
 
+/* We have 3 cases to handle.  And we code different code sequences
+   for each one.  I love V9 code models...  */
 static inline void
 elf_machine_fixup_plt(struct link_map *map, const Elf64_Rela *reloc,
                       Elf64_Addr *reloc_addr, Elf64_Addr value)
 {
-  Elf64_Dyn *pltfmt = map->l_info[DT_SPARC(PLTFMT)];
-  switch (pltfmt ? pltfmt->d_un.d_val : 0)
+  unsigned int *insns = (unsigned int *) reloc_addr;
+  Elf64_Addr plt_vaddr = (Elf64_Addr) reloc_addr;
+
+  /* Now move plt_vaddr up to the call instruction.  */
+  plt_vaddr += (2 * 4);
+
+  /* 32-bit Sparc style, the target is in the lower 32-bits of
+     address space.  */
+  if ((value >> 32) == 0)
     {
-    case 1: /* .got.plt with absolute addresses */
-      *reloc_addr = value;
-      break;
-    case 2: /* .got.plt with got-relative addresses */
-      *reloc_addr = value - (map->l_info[DT_PLTGOT]->d_un.d_ptr + map->l_addr);
-      break;
-    default:
-      assert (! "unexpected .plt format type");
+      /* sethi	%hi(target), %g1
+	 jmpl	%g1 + %lo(target), %g0  */
+
+      insns[2] = 0x81c06000 | (value & 0x3ff);
+      __asm __volatile ("flush %0 + 8" : : "r" (insns));
+
+      insns[1] = 0x03000000 | ((unsigned int)(value >> 10));
+      __asm __volatile ("flush %0 + 4" : : "r" (insns));
+    }
+  /* We can also get somewhat simple sequences if the distance between
+     the target and the PLT entry is within +/- 2GB.  */
+  else if ((plt_vaddr > value
+	    && ((plt_vaddr - value) >> 32) == 0)
+	   || (value > plt_vaddr
+	       && ((value - plt_vaddr) >> 32) == 0))
+    {
+      unsigned int displacement;
+
+      if (plt_vaddr > value)
+	displacement = (0 - (plt_vaddr - value));
+      else
+	displacement = value - plt_vaddr;
+
+      /* mov	%o7, %g1
+	 call	displacement
+	  mov	%g1, %o7  */
+
+      insns[3] = 0x9e100001;
+      __asm __volatile ("flush %0 + 12" : : "r" (insns));
+
+      insns[2] = 0x40000000 | (displacement >> 2);
+      __asm __volatile ("flush %0 + 8" : : "r" (insns));
+
+      insns[1] = 0x8210000f;
+      __asm __volatile ("flush %0 + 4" : : "r" (insns));
+    }
+  /* Worst case, ho hum...  */
+  else
+    {
+      unsigned int high32 = (value >> 32);
+      unsigned int low32 = (unsigned int) value;
+
+      /* ??? Some tricks can be stolen from the sparc64 egcs backend
+	     constant formation code I wrote.  -DaveM  */
+
+      /* sethi	%hh(value), %g1
+	 sethi	%lm(value), %g2
+	 or	%g1, %hl(value), %g1
+	 or	%g2, %lo(value), %g2
+	 sllx	%g1, 32, %g1
+	 jmpl	%g1 + %g2, %g0
+	  nop  */
+
+      insns[6] = 0x81c04002;
+      __asm __volatile ("flush %0 + 24" : : "r" (insns));
+
+      insns[5] = 0x83287020;
+      __asm __volatile ("flush %0 + 20" : : "r" (insns));
+
+      insns[4] = 0x8410a000 | (low32 & 0x3ff);
+      __asm __volatile ("flush %0 + 16" : : "r" (insns));
+
+      insns[3] = 0x82106000 | (high32 & 0x3ff);
+      __asm __volatile ("flush %0 + 12" : : "r" (insns));
+
+      insns[2] = 0x05000000 | (low32 >> 10);
+      __asm __volatile ("flush %0 + 8" : : "r" (insns));
+
+      insns[1] = 0x03000000 | (high32 >> 10);
+      __asm __volatile ("flush %0 + 4" : : "r" (insns));
     }
 }
 
@@ -119,7 +185,7 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
 #endif
 	*reloc_addr = map->l_addr + reloc->r_addend;
     }
-  else
+  else if (ELF64_R_TYPE (reloc->r_info) != R_SPARC_NONE) /* Who is Wilbur? */
     {
       const Elf64_Sym *const refsym = sym;
       Elf64_Addr value;
@@ -137,6 +203,10 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
       switch (ELF64_R_TYPE (reloc->r_info))
 	{
 	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
 	      || (_dl_verbose && sym->st_size < refsym->st_size))
 	    {
@@ -164,6 +234,9 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
 	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;
@@ -171,27 +244,64 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
 	  *(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_LO10:
-	  *(unsigned *)reloc_addr = (*(unsigned *)reloc_addr & ~0x3ff)
-				     | (value & 0x3ff);
+	  *(unsigned int *) reloc_addr = (value - (Elf64_Addr) reloc_addr);
 	  break;
 	case R_SPARC_WDISP30:
-	  *(unsigned *)reloc_addr = ((*(unsigned *)reloc_addr & 0xc0000000)
-			 | ((value - (Elf64_Addr) reloc_addr) >> 2));
+	  *(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 *)reloc_addr = (*(unsigned *)reloc_addr & 0xffc00000)
-				     | (value >> 10);
+	  *(unsigned int *) reloc_addr =
+	    ((*(unsigned int *)reloc_addr & 0xffc00000) |
+	     (value >> 10));
+	  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_JMP_SLOT:
 	  elf_machine_fixup_plt(map, reloc, reloc_addr, value);
 	  break;
 
-	case R_SPARC_NONE:		/* Alright, Wilbur.  */
-	  break;
 	default:
 	  assert (! "unexpected dynamic reloc type");
 	  break;
@@ -239,16 +349,63 @@ elf_machine_lazy_rel (Elf64_Addr l_addr, const Elf64_Rela *reloc)
 static inline int
 elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 {
-  Elf64_Addr *got;
-  extern void _dl_runtime_resolve (void);
-
   if (l->l_info[DT_JMPREL] && lazy)
     {
-      got = (Elf64_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr);
-      /* This function will get called to fix up the GOT entry indicated by
-         the offset on the stack, and then jump to the resolved address.  */
-      got[1] = (Elf64_Addr) &_dl_runtime_resolve;
-      got[2] = (Elf64_Addr) l;  /* Identify this shared object.  */
+      extern void _dl_runtime_resolve_0 (void);
+      extern void _dl_runtime_resolve_1 (void);
+      extern void _dl_runtime_profile_0 (void);
+      extern void _dl_runtime_profile_1 (void);
+      Elf64_Addr res0_addr, res1_addr;
+      unsigned int *plt = (unsigned int *)
+	(l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr);
+
+      if (! profile)
+	{
+	  res0_addr = (Elf64_Addr) &_dl_runtime_resolve_0;
+	  res1_addr = (Elf64_Addr) &_dl_runtime_resolve_1;
+	}
+      else
+	{
+	  res0_addr = (Elf64_Addr) &_dl_runtime_profile_0;
+	  res1_addr = (Elf64_Addr) &_dl_runtime_profile_1;
+	  if (_dl_name_match_p (_dl_profile, l))
+	    _dl_profile_map = l;
+	}
+
+      /* PLT0 looks like:
+
+	 save	%sp, -192, %sp
+	 sethi	%hh(_dl_runtime_{resolve,profile}_0), %g3
+	 sethi	%lm(_dl_runtime_{resolve,profile}_0), %g4
+	 or	%g3, %hm(_dl_runtime_{resolve,profile}_0), %g3
+	 or	%g4, %lo(_dl_runtime_{resolve,profile}_0), %g4
+	 sllx	%g3, 32, %g3
+	 jmpl	%g3 + %g4, %o0
+	  nop
+
+	 PLT1 is similar except we jump to _dl_runtime_{resolve,profile}_1.  */
+
+      plt[0] = 0x9de3bf40;
+      plt[1] = 0x07000000 | (res0_addr >> (64 - 22));
+      plt[2] = 0x09000000 | ((res0_addr >> 10) & 0x003fffff);
+      plt[3] = 0x8610e000 | ((res0_addr >> 32) & 0x3ff);
+      plt[4] = 0x88112000 | (res0_addr & 0x3ff);
+      plt[5] = 0x8728f020;
+      plt[6] = 0x91c0c004;
+      plt[7] = 0x01000000;
+
+      plt[8 + 0] = 0x9de3bf40;
+      plt[8 + 1] = 0x07000000 | (res1_addr >> (64 - 22));
+      plt[8 + 2] = 0x09000000 | ((res1_addr >> 10) & 0x003fffff);
+      plt[8 + 3] = 0x8610e000 | ((res1_addr >> 32) & 0x3ff);
+      plt[8 + 4] = 0x88112000 | (res1_addr & 0x3ff);
+      plt[8 + 5] = 0x8728f020;
+      plt[8 + 6] = 0x91c0c004;
+      plt[8 + 7] = 0x01000000;
+
+      /* Now put the magic cookie at the beginning of .PLT3
+	 Entry .PLT4 is unused by this implementation.  */
+      *((struct link_map **)(&plt[16 + 0])) = l;
     }
 
   return lazy;
@@ -256,23 +413,68 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 
 /* This code is used in dl-runtime.c to call the `fixup' function
    and then redirect to the address it returns.  */
-#define ELF_MACHINE_RUNTIME_TRAMPOLINE asm ("\
-	.globl _dl_runtime_resolve
-	.type _dl_runtime_resolve, @function
-_dl_runtime_resolve:
-	save %sp, -160, %sp
-	mov %g1, %o0
-	call fixup
-	 mov %g2, %o1
-	jmp %o0
+#define TRAMPOLINE_TEMPLATE(tramp_name, fixup_name)	\
+  asm ("\
+	.text
+	.globl	" #tramp_name "_0
+	.type	" #tramp_name "_0, @function
+	.align	32
+" #tramp_name "_0:
+	ldx	[%o0 + 32 + 8], %l0
+	sethi	%hi(1048576), %g2
+	sub	%g1, %o0, %o0
+	xor	%g2, -20, %g2
+	sethi	%hi(5120), %g3
+	add	%o0, %g2, %o0
+	sethi	%hi(32768), %o2
+	udivx	%o0, %g3, %g3
+	sllx	%g3, 2, %g1
+	add	%g1, %g3, %g1
+	sllx	%g1, 10, %g2
+	sllx	%g1, 5, %g1
+	sub	%o0, %g2, %o0
+	udivx	%o0, 24, %o0
+	add	%o0, %o2, %o0
+	add	%g1, %o0, %g1
+	sllx	%g1, 1, %o1
+	mov	%l0, %o0
+	add	%o1, %g1, %o1
+	mov	%i7, %o2
+	call	" #fixup_name "
+	 sllx	%o1, 3, %o1
+	jmp	%o0
+	 restore
+	.size	" #tramp_name "_0, . - " #tramp_name "_0
+
+	.globl	" #tramp_name "_1
+	.type	" #tramp_name "_1, @function
+	.align	32
+" #tramp_name "_1:
+	srlx	%g1, 15, %o1
+	ldx	[%o0 + 8], %o0
+	sllx	%o1, 1, %o3
+	add	%o1, %o3, %o1
+	mov	%i7, %o2
+	call	" #fixup_name "
+	 sllx	%o1, 3, %o1
+	jmp	%o0
 	 restore
-	.size _dl_runtime_resolve, .-_dl_runtime_resolve
-");
+	.size	" #tramp_name "_1, . - " #tramp_name "_1
+	.previous");
+
+#ifndef PROF
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE 			\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_profile, profile_fixup);
+#else
+#define ELF_MACHINE_RUNTIME_TRAMPOLINE			\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_resolve, fixup);	\
+  TRAMPOLINE_TEMPLATE (_dl_runtime_profile, fixup);
+#endif
 
 /* The PLT uses Elf64_Rela relocs.  */
 #define elf_machine_relplt elf_machine_rela
 
-
 /* 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.  */
@@ -281,8 +483,10 @@ _dl_runtime_resolve:
 #define __S(x)	__S1(x)
 
 #define RTLD_START __asm__ ( "\
-	.global _start
-	.type _start, @function
+	.text
+	.global	_start
+	.type	_start, @function
+	.align	32
 _start:
    /* Make room for functions to drop their arguments on the stack.  */
 	sub	%sp, 6*8, %sp
@@ -292,8 +496,8 @@ _start:
 	/* FALLTHRU */
 	.size _start, .-_start
 
-	.global _dl_start_user
-	.type _dl_start_user, @function
+	.global	_dl_start_user
+	.type	_dl_start_user, @function
 _dl_start_user:
    /* Load the GOT register.  */
 1:	call	11f
@@ -302,6 +506,12 @@ _dl_start_user:
 	add	%l7,%o7,%l7
    /* Save the user entry point address in %l0.  */
 	mov	%o0,%l0
+  /* Store the highest stack address.  */
+	sethi	%hi(__libc_stack_end), %g2
+	or	%g2, %lo(__libc_stack_end), %g2
+	ldx	[%l7 + %g2], %l1
+	add	%sp, 6*8, %l2
+	stx	%l2, [%l1]
    /* See if we were run as a command with the executable file name as an
       extra leading argument.  If so, we must shift things around since we
       must keep the stack doubleword aligned.  */
@@ -338,7 +548,7 @@ _dl_start_user:
 	stx	%i4, [%i1+8]
 	brnz,pt	%i3, 13b
 	 add	%i1, 16, %i1
-   /* Load _dl_main_searchlist to pass to _dl_init_next.  */
+  /* Load searchlist of the main object to pass to _dl_init_next.  */
 2:	sethi	%hi(_dl_main_searchlist), %g2
 	or	%g2, %lo(_dl_main_searchlist), %g2
 	ldx	[%l7+%g2], %g2
@@ -349,8 +559,7 @@ _dl_start_user:
 	brz,pn	%o0, 4f
 	 nop
 	jmpl	%o0, %o7
-	 nop
-	ba,a	3b
+	 sub	%o7, 24, %o7
    /* Clear the startup flag.  */
 4:	sethi	%hi(_dl_starting_up), %g2
 	or	%g2, %lo(_dl_starting_up), %g2
@@ -360,7 +569,8 @@ _dl_start_user:
 	sethi	%hi(_dl_fini), %g1
 	or	%g1, %lo(_dl_fini), %g1
 	ldx	[%l7+%g1], %g1
-   /* Jump to the user's entry point & undo the allocation of the xtra regs.  */
+  /* Jump to the user's entry point and deallocate the extra stack we got.  */
 	jmp	%l0
 	 add	%sp, 6*8, %sp
-	.size _dl_start_user, .-_dl_start_user");
+	.size	_dl_start_user, . - _dl_start_user
+	.previous");
diff --git a/sysdeps/sparc/sparc64/elf/crtbegin.S b/sysdeps/sparc/sparc64/elf/crtbegin.S
index 318e7a6a3f..c2fe01f6b0 100644
--- a/sysdeps/sparc/sparc64/elf/crtbegin.S
+++ b/sysdeps/sparc/sparc64/elf/crtbegin.S
@@ -40,7 +40,7 @@ __DTOR_LIST__:
 	.align 4
 	.type __do_global_dtors_aux,#function
 __do_global_dtors_aux:
-	save	%sp,-160,%sp
+	save	%sp,-192,%sp
 
 #ifdef PIC
 1:	call	11f
@@ -53,7 +53,6 @@ __do_global_dtors_aux:
 #else
 	sethi	%hi(__DTOR_LIST__), %l0
 	or	%l0, %lo(__DTOR_LIST__), %l0
-	add	%l0, %g4, %l0
 #endif
 
 	ba	3f
diff --git a/sysdeps/sparc/sparc64/elf/crtend.S b/sysdeps/sparc/sparc64/elf/crtend.S
index 7a5c067b07..db0ac87ecd 100644
--- a/sysdeps/sparc/sparc64/elf/crtend.S
+++ b/sysdeps/sparc/sparc64/elf/crtend.S
@@ -40,7 +40,7 @@ __DTOR_END__:
 	.align 4
 	.type __do_global_ctors_aux,#function
 __do_global_ctors_aux:
-	save	%sp,-160,%sp
+	save	%sp,-192,%sp
 
 #ifdef PIC
 1:	call	11f
@@ -53,7 +53,6 @@ __do_global_ctors_aux:
 #else
 	sethi	%hi(__CTOR_END__), %l0
 	or	%l0, %lo(__CTOR_END__), %l0
-	add	%l0, %g4, %l0
 #endif
 
 	ba	3f
diff --git a/sysdeps/sparc/sparc64/elf/start.S b/sysdeps/sparc/sparc64/elf/start.S
index 140cd366e5..1fc24619cf 100644
--- a/sysdeps/sparc/sparc64/elf/start.S
+++ b/sysdeps/sparc/sparc64/elf/start.S
@@ -38,24 +38,12 @@ _start:
 	add	%sp, STACK_BIAS+23*8, %o2
 
   /* Load the addresses of the user entry points.  */
-        sethi   %uhi(main), %o0
-        sethi   %uhi(_init), %o3
-        sethi   %uhi(_fini), %o4
-        or      %o0, %ulo(main), %o0
-        or      %o3, %ulo(_init), %o3
-        or      %o4, %ulo(_fini), %o4
-        sethi   %hi(main), %i0
-        sethi   %hi(_init), %i3
-        sethi   %hi(_fini), %i4
-	sllx	%o0, 32, %o0
-        or      %i0, %lo(main), %i0
-	sllx	%o3, 32, %o3
-        or      %i3, %lo(_init), %i3
-	sllx	%o4, 32, %o4
-        or      %i4, %lo(_fini), %i4
-	or	%o0, %i0, %o0
-	or	%o3, %i3, %o3
-	or	%o4, %i4, %o4
+        sethi   %hi(main), %o0
+        sethi   %hi(_init), %o3
+        sethi   %hi(_fini), %o4
+        or      %o0, %lo(main), %o0
+        or      %o3, %lo(_init), %o3
+        or      %o4, %lo(_fini), %o4
 
   /* When starting a binary via the dynamic linker, %g1 contains the
      address of the shared library termination function, which will be
diff --git a/sysdeps/sparc/sparc64/lshift.S b/sysdeps/sparc/sparc64/lshift.S
index 1678991529..f211924ddb 100644
--- a/sysdeps/sparc/sparc64/lshift.S
+++ b/sysdeps/sparc/sparc64/lshift.S
@@ -28,7 +28,7 @@
    cnt		%i3  */
 
 ENTRY(__mpn_lshift)
-	save	%sp, -128, %sp
+	save	%sp, -192, %sp
 
 	sllx	%i2,3,%g1
 	add	%i1,%g1,%i1	! make %i1 point at end of src
diff --git a/sysdeps/sparc/sparc64/mul_1.S b/sysdeps/sparc/sparc64/mul_1.S
index 87e441d7eb..757856b4cd 100644
--- a/sysdeps/sparc/sparc64/mul_1.S
+++ b/sysdeps/sparc/sparc64/mul_1.S
@@ -31,7 +31,7 @@
 
 ENTRY(__mpn_mul_1)
 	!#PROLOGUE#	0
-	save	%sp,-128,%sp
+	save	%sp,-192,%sp
 	!#PROLOGUE#	1
 
 	sub	%g0,%i2,%o7
diff --git a/sysdeps/sparc/sparc64/rshift.S b/sysdeps/sparc/sparc64/rshift.S
index e1b3aca112..51eb4af3ab 100644
--- a/sysdeps/sparc/sparc64/rshift.S
+++ b/sysdeps/sparc/sparc64/rshift.S
@@ -28,7 +28,7 @@
    cnt		%i3  */
 
 ENTRY(__mpn_rshift)
-	save	%sp, -128, %sp
+	save	%sp, -192, %sp
 
 	ldx	[%i1],%g2	! load first limb
 	sub	%g0,%i3,%i5	! negate shift count
diff --git a/sysdeps/sparc/sparc64/submul_1.S b/sysdeps/sparc/sparc64/submul_1.S
index 3cc0e3bb08..ce9a80464f 100644
--- a/sysdeps/sparc/sparc64/submul_1.S
+++ b/sysdeps/sparc/sparc64/submul_1.S
@@ -31,7 +31,7 @@
 
 ENTRY(__mpn_submul_1)
 	!#PROLOGUE#	0
-	save	%sp,-128,%sp
+	save	%sp,-192,%sp
 	!#PROLOGUE#	1
 
 	sub	%g0,%i2,%o7
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/sigaction.h b/sysdeps/unix/sysv/linux/sparc/bits/sigaction.h
index 1858ef4857..3e4e855915 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/sigaction.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/sigaction.h
@@ -40,6 +40,8 @@ struct sigaction
 
 /* Bits in `sa_flags'.  */
 #define	SA_NOCLDSTOP 0x00000008  /* Don't send SIGCHLD when children stop.  */
+#define SA_SIGINFO   0x00000200  /* Invoke signal-catching function with
+				    three arguments instead of one.  */
 #ifdef __USE_MISC
 # define SA_STACK     0x00000001 /* Use signal stack by using `sa_restorer'. */
 # define SA_RESTART   0x00000002 /* Restart syscall on signal return.  */
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/signum.h b/sysdeps/unix/sysv/linux/sparc/bits/signum.h
index fae3826023..976eef2758 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/signum.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/signum.h
@@ -32,8 +32,6 @@
  * Linux/SPARC has different signal numbers that Linux/i386: I'm trying
  * to make it OSF/1 binary compatible, at least for normal binaries.
  */
-#define	_NSIG		32	/* Biggest signal number + 1.  */
-
 #define SIGHUP		 1
 #define SIGINT		 2
 #define SIGQUIT		 3
@@ -70,4 +68,15 @@
 #define SIGUSR1		30
 #define SIGUSR2		31
 
+#define	_NSIG		64	/* Biggest signal number + 1
+				   (including real-time signals).  */
+
+#define SIGRTMIN        (__libc_current_sigrtmin ())
+#define SIGRTMAX        (__libc_current_sigrtmax ())
+
+/* These are the hard limits of the kernel.  These values should not be
+   used directly at user level.  */
+#define __SIGRTMIN	32
+#define __SIGRTMAX	(_NSIG - 1)
+
 #endif	/* <signal.h> included.  */
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/brk.c b/sysdeps/unix/sysv/linux/sparc/sparc32/brk.c
index 7e784cab8f..4d38631a19 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/brk.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/brk.c
@@ -33,7 +33,7 @@ weak_alias (__curbrk, ___brk_addr)
 int
 __brk (void *addr)
 {
-  void *newbrk, *scratch;
+  void *newbrk;
 
   {
     register void *o0 __asm__("%o0") = addr;
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
index 742ac5583c..ae44328fad 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
@@ -23,6 +23,13 @@
 #include <errno.h>
 #include <kernel_sigaction.h>
 
+extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
+				   struct kernel_sigaction *, unsigned long,
+				   size_t);
+
+static void __rt_sigreturn_stub (void);
+static void __sigreturn_stub (void);
+
 /* The variable is shared between all wrappers around signal handling
    functions which have RT equivalents.  */
 int __libc_missing_rt_sigs;
@@ -30,8 +37,49 @@ int __libc_missing_rt_sigs;
 int
 __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
 {
+  struct old_kernel_sigaction k_sigact, k_osigact;
   int ret;
-  struct kernel_sigaction k_sigact, k_osigact;
+
+  /* First try the RT signals.  */
+  if (!__libc_missing_rt_sigs)
+    {
+      struct kernel_sigaction kact, koact;
+      unsigned long stub = 0;
+      int saved_errno = errno;
+
+      if (act)
+	{
+	  kact.k_sa_handler = act->sa_handler;
+	  memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
+	  if (((kact.sa_flags = act->sa_flags) & SA_SIGINFO) != 0)
+	    stub = (unsigned long) &__rt_sigreturn_stub;
+	  else
+	    stub = (unsigned long) &__sigreturn_stub;
+	  stub -= 8;
+	  kact.sa_restorer = NULL;
+	}
+
+      /* XXX The size argument hopefully will have to be changed to the
+	 real size of the user-level sigset_t.  */
+      ret = __syscall_rt_sigaction (sig, act ? &kact : 0,
+				    oact ? &koact : 0,
+				    stub, _NSIG / 8);
+
+      if (ret >= 0 || errno != ENOSYS)
+	{
+	  if (oact && ret >= 0)
+	    {
+	      oact->sa_handler = koact.k_sa_handler;
+	      memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
+	      oact->sa_flags = koact.sa_flags;
+	      oact->sa_restorer = koact.sa_restorer;
+	    }
+	  return ret;
+	}
+
+      __set_errno (saved_errno);
+      __libc_missing_rt_sigs = 1;
+    }
 
   /* Magic to tell the kernel we are using "new-style" signals, in that
      the signal table is not kept in userspace.  Not the same as the
@@ -41,15 +89,16 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
   if (act)
     {
       k_sigact.k_sa_handler = act->sa_handler;
-      memcpy (&k_sigact.sa_mask, &act->sa_mask, sizeof (sigset_t));
+      k_sigact.sa_mask = act->sa_mask.__val[0];
       k_sigact.sa_flags = act->sa_flags;
+      k_sigact.sa_restorer = NULL;
     }
 
   {
     register int r_syscallnr __asm__("%g1") = __NR_sigaction;
     register int r_sig __asm__("%o0") = sig;
-    register struct kernel_sigaction *r_act __asm__("%o1");
-    register struct kernel_sigaction *r_oact __asm__("%o2");
+    register struct old_kernel_sigaction *r_act __asm__("%o1");
+    register struct old_kernel_sigaction *r_oact __asm__("%o2");
 
     r_act = act ? &k_sigact : NULL;
     r_oact = oact ? &k_osigact : NULL;
@@ -57,7 +106,7 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
     __asm__ __volatile__("t 0x10\n\t"
 			 "bcc 1f\n\t"
 			 " nop\n\t"
-			 " sub %%g0,%%o0,%%o0\n"
+			 "sub %%g0,%%o0,%%o0\n"
 			 "1:"
 			 : "=r"(r_sig)
 			 : "r"(r_syscallnr), "r"(r_act), "r"(r_oact),
@@ -66,16 +115,13 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
     ret = r_sig;
   }
 
-  if (ret >= 0)
+  if (oact && ret >= 0)
     {
-      if (oact)
-	{
-	  oact->sa_handler = k_osigact.k_sa_handler;
-	  memcpy (&oact->sa_mask, &k_osigact.sa_mask, sizeof (sigset_t));
-	  oact->sa_flags = k_osigact.sa_flags;
-	  oact->sa_restorer = NULL;
-	}
-      return 0;
+      oact->sa_handler = k_osigact.k_sa_handler;
+      oact->sa_mask.__val[0] = k_osigact.sa_mask;
+      oact->sa_flags = k_osigact.sa_flags;
+      oact->sa_restorer = NULL;
+      return ret;
     }
 
   __set_errno (-ret);
@@ -83,3 +129,21 @@ __sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
 }
 
 weak_alias (__sigaction, sigaction);
+
+static void
+__rt_sigreturn_stub (void)
+{
+  __asm__ ("mov %0, %%g1\n\t"
+	   "ta	0x10\n\t"
+	   : /* no outputs */
+	   : "i" (__NR_rt_sigreturn));
+}
+
+static void
+__sigreturn_stub (void)
+{
+  __asm__ ("mov %0, %%g1\n\t"
+	   "ta	0x10\n\t"
+	   : /* no outputs */
+	   : "i" (__NR_sigreturn));
+}
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/Dist b/sysdeps/unix/sysv/linux/sparc/sparc64/Dist
index 50f83311cd..c22b73ebd2 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/Dist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/Dist
@@ -4,5 +4,4 @@ kernel_stat.h
 getcontext.S
 setcontext.S
 sizes.h
-ucontext.h
 init-first.h
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h
index b200b718d2..e51f81a5a0 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h
@@ -21,6 +21,11 @@
 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
 #endif
 
-#include <ucontext.h>
+#include <sys/ucontext.h>
 
 typedef ucontext_t __jmp_buf[1];
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((unsigned long int) (address) < (jmpbuf)->uc_mcontext.mc_fp)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h
index 9027eca2ac..b6178f5a8e 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h
@@ -39,4 +39,20 @@ struct statfs
     long int f_spare[6];
   };
 
+/* We already use 64-bit types in the normal structure,
+   so this is the same as the above.  */
+struct statfs64
+  {
+    long int f_type;
+    long int f_bsize;
+    long int f_blocks;
+    long int f_bfree;
+    long int f_bavail;
+    long int f_files;
+    long int f_ffree;
+    __fsid_t f_fsid;
+    long int f_namelen;
+    long int f_spare[6];
+  };
+
 #endif	/* bits/statfs.h */
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/brk.S b/sysdeps/unix/sysv/linux/sparc/sparc64/brk.S
index 333f9916f8..e21b60d637 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/brk.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/brk.S
@@ -38,7 +38,7 @@ __curbrk: .skip 8
 
 	.text
 ENTRY(__brk)
-	save	%sp, -160, %sp
+	save	%sp, -192, %sp
 #ifdef PIC
 1:	call	2f
 	sethi	%hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7
@@ -49,24 +49,23 @@ ENTRY(__brk)
 	LOADSYSCALL(brk)
 	mov	%i0, %o0
 
-	ta	0x11
+	ta	0x6d
 
 	/* All the ways we can fail... */
 	bcs,pn	%xcc, .Lerr1
 	 nop
-	brz	%i0, .Lok
+	brz,pt	%i0, .Lok
 	 subcc	%i0, %o0, %g0
 	bne,pn	%xcc, .Lerr0
+	 nop
 
 	/* Update __curbrk and return cleanly.  */
 .Lok:	sethi	%hi(__curbrk), %g1
 	or	%g1, %lo(__curbrk), %g1
 #ifdef PIC
 	ldx	[%l7+%g1], %g1
-	stx	%o0, [%g1]
-#else
-	stx	%o0, [%g4+%g1]
 #endif
+	stx	%o0, [%g1]
 	mov	%g0, %i0
 
 	/* Don't use "ret" cause the preprocessor will eat it.  */
@@ -81,10 +80,8 @@ ENTRY(__brk)
 	or	%g1, %lo(errno), %g1
 #ifdef PIC
 	ldx	[%l7+%g1], %g1
-	st	%o0, [%g1]
-#else
-	st	%o0, [%g4+%g1]
 #endif
+	st	%o0, [%g1]
 #else
 	call	__errno_location
 	 mov	%o0,%l1
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
index 6c619fcdc3..d7506b7c72 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S
@@ -30,7 +30,7 @@
 	.type	__clone,@function
 
 __clone:
-	save	%sp,-160,%sp
+	save	%sp, -192, %sp
 
 	/* sanity check arguments */
 	brz,pn	%i0, 99f
@@ -42,10 +42,10 @@ __clone:
 	mov	%i1, %o1
 	mov	%i2, %o0
 	set	__NR_clone, %g1
-	ta	0x11
+	ta	0x6d
 	bcs,pn	%xcc, 99f
 	 nop
-	brnz	%o0, __thread_start
+	brnz,pn	%o0, __thread_start
 	 mov	%o0, %i0
 	ret
 	 restore
@@ -62,7 +62,6 @@ __clone:
 	st	%i0, [%l7+%g2]
 #else
 	sethi	%hi(errno), %g2
-	add	%g2, %g4, %g2
 	set	EINVAL, %i0
 	st	%i0, [%g2+%lo(errno)]
 #endif
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h b/sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h
index 955714dc4f..ece284ab44 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/init-first.h
@@ -33,7 +33,7 @@
 	.global " #NAME "
 	.type " #NAME ",@function
 " #NAME ":
-	save	%sp, -128, %sp
+	save	%sp, -192, %sp
 1:	call	11f
 	sethi	%hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7
 11:	or	%l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7
@@ -73,11 +73,10 @@
 	or	%g2, %lo(_dl_starting_up), %g2
 	brz,pt	%g2, 3f
 	 sethi	%hi(__libc_multiple_libcs), %g3
-	ld	[%g4+%g2], %g1
+	ld	[%g2], %g1
 	mov	%g0, %g2
 	movrz	%g1, 1, %g2
-3:	or	%g3, %lo(__libc_multiple_libcs), %g3
-	st	%g2, [%g3+%g4]
+3:	st	%g2, [%g3 + %lo(__libc_multiple_libcs)]
 	/* If so, argc et al are in %o0-%o2 already.  Otherwise, load them.  */
 	brnz,pn	%g2, " #INIT "
 	 nop
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S b/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
index d63762cb15..963aa6d89d 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
@@ -44,5 +44,7 @@ ENTRY(longjmp)
 END(longjmp)
 
 strong_alias(longjmp, __longjmp)
+strong_alias(longjmp, __libc_longjmp)
+strong_alias(longjmp, __libc_siglongjmp)
 weak_alias(longjmp, _longjmp)
 weak_alias(longjmp, siglongjmp)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S b/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S
index 82ff4eae3c..38a6f8f8b8 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/pipe.S
@@ -22,7 +22,7 @@
 ENTRY (__libc_pipe)
         mov	%o0, %o2            /* Save PIPEDES. */
 	LOADSYSCALL(pipe)
-	ta	0x11
+	ta	0x6d
 	bcc,pn	%xcc, 2f
 	 nop
 	SYSCALL_ERROR_HANDLER
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c b/sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c
index 96a6a76945..300ebb2629 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/readdir.c
@@ -1,4 +1,7 @@
 #define readdir64 __no_readdir64_decl
+#define __readdir64 __no___readdir64_decl
 #include <sysdeps/unix/readdir.c>
+#undef __readdir64
+strong_alias (__readdir, __readdir64)
 #undef readdir64
 weak_alias (__readdir, readdir64)
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h
index 160e2fc43a..f62b542b2f 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/ucontext.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h
@@ -1,5 +1,5 @@
-#ifndef _UCONTEXT_H
-#define _UCONTEXT_H
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H
 
 #include <signal.h>
 
@@ -64,4 +64,4 @@ struct ucontext {
 };
 typedef struct ucontext ucontext_t;
 
-#endif /* ucontext.h */
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S b/sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S
index 30dace5903..5864bfcbc3 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/syscall.S
@@ -28,7 +28,7 @@ ENTRY (syscall)
 	mov	%o4,%o3
 	mov	%o5,%o4
 
-	ta	0x11
+	ta	0x6d
 
 	bcc,pt %xcc,1f
 	 nop
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list b/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
index fcf556b818..1ec42fa42e 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list
@@ -6,7 +6,7 @@ pread		-	pread		4	__pread		pread __pread64 pread64
 pwrite		-	pwrite		4	__pwrite	pwrite __pwrite64 pwrite64
 fstatfs		-	fstatfs		2	__fstatfs	fstatfs fstatfs64
 statfs		-	statfs		2	__statfs	statfs statfs64
-getrlimit	-	getrlimit	2	getrlimit	getrlimit64
+getrlimit	-	getrlimit	2	__getrlimit	getrlimit getrlimit64
 setrlimit	-	setrlimit	2	setrlimit	setrlimit64
 ftruncate	-	ftruncate	2	__ftruncate	ftruncate ftruncate64
 truncate	-	truncate	2	truncate	truncate64
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
index 2cc8547c1a..5a9a4e249b 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
@@ -46,49 +46,48 @@
 #ifdef PIC
 # ifdef _LIBC_REENTRANT
 #  define SYSCALL_ERROR_HANDLER						\
-	save %sp,-160,%sp;						\
-	call __errno_location;						\
+	save	%sp, -192, %sp;						\
+	call	__errno_location;					\
 	 nop;								\
-	st %i0,[%o0];							\
-	sub %g0,1,%i0;							\
-	jmpl %i7+8, %g0;						\
+	st	%i0,[%o0];						\
+	sub	%g0,1,%i0;						\
+	jmpl	%i7+8, %g0;						\
 	 restore
 # else
 #  define SYSCALL_ERROR_HANDLER						\
 	.global C_SYMBOL_NAME(errno);					\
 	.type C_SYMBOL_NAME(errno),@object;				\
-	mov %o7,%g3;							\
-  101:	call 102f;							\
-	sethi %hi(_GLOBAL_OFFSET_TABLE_-(101b-.)),%g2;			\
-  102:	or %g2,%lo(_GLOBAL_OFFSET_TABLE_-(101b-.)),%g2;			\
-	sethi %hi(errno),%o1;						\
-	add %g2,%o7,%l7;						\
-	or %o1,%lo(errno),%o1;						\
-	mov %g3,%o7;							\
-	ldx [%l7+%o1],%g2;						\
-	st %o0,[%g2];							\
+	mov	%o7, %g3;						\
+  101:	call	102f;							\
+	sethi	%hi(_GLOBAL_OFFSET_TABLE_-(101b-.)), %g2;		\
+  102:	or	%g2,%lo(_GLOBAL_OFFSET_TABLE_-(101b-.)), %g2;		\
+	sethi	%hi(errno), %o1;					\
+	add	%g2, %o7, %l7;						\
+	or	%o1, %lo(errno), %o1;					\
+	mov	%g3,%o7;						\
+	ldx	[%l7+%o1], %g2;						\
+	st	%o0, [%g2];						\
 	retl;								\
-	 sub %g0,1,%i0
+	 sub	%g0, 1, %i0
 # endif
 #else
 # ifdef _LIBC_REENTRANT
 #  define SYSCALL_ERROR_HANDLER						\
-	save %sp,-160,%sp;						\
-	call __errno_location;						\
+	save	%sp, -192, %sp;						\
+	call	__errno_location;					\
 	 nop;								\
-	st %i0,[%o0];							\
-	sub %g0,1,%i0;							\
-	jmpl %i7+8, %g0;						\
+	st	%i0, [%o0];						\
+	sub	%g0, 1, %i0;						\
+	jmpl	%i7+8, %g0;						\
 	 restore
 # else
 #  define SYSCALL_ERROR_HANDLER						\
 	.global C_SYMBOL_NAME(errno);					\
 	.type C_SYMBOL_NAME(errno),@object;				\
-	sethi %hi(errno),%g1;						\
-	or %g1,%lo(errno),%g1;						\
-	st %i0,[%g1+%g4];						\
+	sethi	%hi(errno), %g1;					\
+	st	%i0, [%g1 + %lo(errno)];				\
 	retl;								\
-	 sub %g0,1,%i0
+	 sub	%g0, 1, %i0
 # endif
 #endif
 
@@ -96,8 +95,8 @@
 	.text;								\
 	ENTRY(name);							\
 	LOADSYSCALL(syscall_name);					\
-	ta 0x11;							\
-	bcc,pt %xcc,1f;							\
+	ta	0x6d;							\
+	bcc,pt	%xcc, 1f;						\
 	 nop;								\
 	SYSCALL_ERROR_HANDLER;						\
 1: