Updated to fedora-glibc-20051020T0651

28 files changed, 1450 insertions, 28 deletions

diff --git a/sysdeps/unix/fdopendir.c b/sysdeps/unix/fdopendir.c
index 3c481fcf0d..23d08fd7fd 100644
--- a/sysdeps/unix/fdopendir.c
+++ b/sysdeps/unix/fdopendir.c
@@ -18,6 +18,7 @@
 
 #include <dirent.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <sys/stat.h>
 
 #include <not-cancel.h>
@@ -29,14 +30,21 @@ fdopendir (int fd)
   struct stat64 statbuf;
 
   if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0)
-    goto out;
+    return NULL;
   if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0))
     {
       __set_errno (ENOTDIR);
-    out:
-      close_not_cancel_no_status (fd);
+      return NULL;
+    }
+  /* Make sure the descriptor allows for reading.  */
+  int flags = __fcntl (fd, F_GETFL);
+  if (__builtin_expect (flags == -1, 0))
+    return NULL;
+  if (__builtin_expect ((flags & O_ACCMODE) == O_WRONLY, 0))
+    {
+      __set_errno (EINVAL);
       return NULL;
     }
 
-  return __alloc_dir (fd, &statbuf);
+  return __alloc_dir (fd, false, &statbuf);
 }
diff --git a/sysdeps/unix/opendir.c b/sysdeps/unix/opendir.c
index 366670b79c..98fb4ca5c8 100644
--- a/sysdeps/unix/opendir.c
+++ b/sysdeps/unix/opendir.c
@@ -132,14 +132,14 @@ __opendir (const char *name)
 	}
     }
 
-  return __alloc_dir (fd, &statbuf);
+  return __alloc_dir (fd, true, &statbuf);
 }
 weak_alias (__opendir, opendir)
 
 
 DIR *
 internal_function
-__alloc_dir (int fd, struct stat64 *statp)
+__alloc_dir (int fd, bool close_fd, struct stat64 *statp)
 {
   if (__builtin_expect (__fcntl (fd, F_SETFD, FD_CLOEXEC), 0) < 0)
     goto lose;
@@ -160,9 +160,12 @@ __alloc_dir (int fd, struct stat64 *statp)
   if (dirp == NULL)
   lose:
     {
-      int save_errno = errno;
-      close_not_cancel_no_status (fd);
-      __set_errno (save_errno);
+      if (close_fd)
+	{
+	  int save_errno = errno;
+	  close_not_cancel_no_status (fd);
+	  __set_errno (save_errno);
+	}
       return NULL;
     }
   memset (dirp, '\0', sizeof (DIR));
diff --git a/sysdeps/unix/sysv/linux/i386/bits/mman.h b/sysdeps/unix/sysv/linux/i386/bits/mman.h
index 1477aa54e2..d0f210f0bc 100644
--- a/sysdeps/unix/sysv/linux/i386/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/i386/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for POSIX memory map interface.  Linux/i386 version.
-   Copyright (C) 1997, 2000, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2000, 2003, 2005 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
@@ -78,6 +78,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/i386/ucontext_i.h b/sysdeps/unix/sysv/linux/i386/ucontext_i.h
index d6efca41b1..c6319f2391 100644
--- a/sysdeps/unix/sysv/linux/i386/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/i386/ucontext_i.h
@@ -1,6 +1,6 @@
 /* Offsets and other constants needed in the *context() function
    implementation.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2005 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
@@ -39,3 +39,23 @@
 #define oFPREGS		96
 #define oSIGMASK	108
 #define oFPREGSMEM	236
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_link, oLINK);				\
+  TEST (uc_stack.ss_sp, oSS_SP);			\
+  TEST (uc_stack.ss_size, oSS_SIZE);			\
+  TEST (uc_mcontext.gregs[REG_GS], oGS);		\
+  TEST (uc_mcontext.gregs[REG_FS], oFS);		\
+  TEST (uc_mcontext.gregs[REG_EDI], oEDI);		\
+  TEST (uc_mcontext.gregs[REG_ESI], oESI);		\
+  TEST (uc_mcontext.gregs[REG_EBP], oEBP);		\
+  TEST (uc_mcontext.gregs[REG_ESP], oESP);		\
+  TEST (uc_mcontext.gregs[REG_EBX], oEBX);		\
+  TEST (uc_mcontext.gregs[REG_EDX], oEDX);		\
+  TEST (uc_mcontext.gregs[REG_ECX], oECX);		\
+  TEST (uc_mcontext.gregs[REG_EAX], oEAX);		\
+  TEST (uc_mcontext.gregs[REG_EIP], oEIP);		\
+  TEST (uc_mcontext.fpregs, oFPREGS);			\
+  TEST (uc_sigmask, oSIGMASK);				\
+  TEST (__fpregs_mem, oFPREGSMEM);
diff --git a/sysdeps/unix/sysv/linux/ia64/bits/mman.h b/sysdeps/unix/sysv/linux/ia64/bits/mman.h
index 01db5be028..a3d1b1dc7e 100644
--- a/sysdeps/unix/sysv/linux/ia64/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/ia64/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for POSIX memory map interface.  Linux/ia64 version.
-   Copyright (C) 1997, 1998, 2000, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2000, 2003, 2005 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
@@ -79,6 +79,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/powerpc/bits/mman.h b/sysdeps/unix/sysv/linux/powerpc/bits/mman.h
index 8dbaf5d7b8..c2b195a71e 100644
--- a/sysdeps/unix/sysv/linux/powerpc/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/powerpc/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for POSIX memory map interface.  Linux/PowerPC version.
-   Copyright (C) 1997, 2000, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2000, 2003, 2005 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
@@ -79,6 +79,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
index e47b24a09e..f65b0ed58c 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h
@@ -41,3 +41,22 @@
 #define _UC_VREGS	464
 #define _UC_VSCR	976
 #define _UC_VRSAVE	980
+
+/* The registers don't have a fixed offset within ucontext because the
+   orginal ucontext only contained the regs pointer.  Also with the
+   addition of VMX to the register state the mcontext may require
+   stronger alignment (16) then the containing ucontext (4).  All access
+   to register state (pt_regs/mcontext) must be indirect via the regs
+   (uc_regs) pointer.  This means we can't test the PPC32 mcontext
+   register offsets here.  */
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_link, _UC_LINK);					\
+  TEST (uc_stack.ss_sp, _UC_STACK_SP);				\
+  TEST (uc_stack.ss_size, _UC_STACK_SIZE);			\
+  TEST (uc_mcontext.regs, _UC_REGS_PTR);			\
+  TEST (uc_mcontext.uc_regs, _UC_REGS_PTR);			\
+  TEST (uc_sigmask, _UC_SIGMASK);				\
+  TEST (uc_reg_space, _UC_REG_SPACE);
+
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h b/sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h
index 45f1bfdae9..d540cfeaf1 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h
@@ -58,3 +58,18 @@
 #define SIGCONTEXT_FP_REGS 616
 #define SIGCONTEXT_V_REGS_PTR 880
 #define SIGCONTEXT_V_RESERVE 888
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_link, UCONTEXT_LINK);				\
+  TEST (uc_stack.ss_sp, UCONTEXT_STACK_SP);			\
+  TEST (uc_stack.ss_size, UCONTEXT_STACK_SIZE);			\
+  TEST (uc_sigmask, UCONTEXT_SIGMASK);				\
+  TEST (uc_mcontext.signal, SIGCONTEXT_SIGNAL);			\
+  TEST (uc_mcontext.handler, SIGCONTEXT_HANDLER);		\
+  TEST (uc_mcontext.oldmask, SIGCONTEXT_OLDMASK);		\
+  TEST (uc_mcontext.regs, SIGCONTEXT_PT_REGS);			\
+  TEST (uc_mcontext.gp_regs, SIGCONTEXT_GP_REGS);		\
+  TEST (uc_mcontext.fp_regs, SIGCONTEXT_FP_REGS);		\
+  TEST (uc_mcontext.v_regs, SIGCONTEXT_V_REGS_PTR);		\
+  TEST (uc_mcontext.vmx_reserve, SIGCONTEXT_V_RESERVE);
diff --git a/sysdeps/unix/sysv/linux/readonly-area.c b/sysdeps/unix/sysv/linux/readonly-area.c
index 29224d98b9..69e926a7a1 100644
--- a/sysdeps/unix/sysv/linux/readonly-area.c
+++ b/sysdeps/unix/sysv/linux/readonly-area.c
@@ -35,10 +35,15 @@ __readonly_area (const char *ptr, size_t size)
   FILE *fp = fopen ("/proc/self/maps", "rc");
   if (fp == NULL)
     {
-      if (errno == ENOENT)
-	/* It is the system administrator's choice to not have /proc
-	   available to this process (e.g., because it runs in a chroot
-	   environment.  Don't fail in this case.  */
+      /* It is the system administrator's choice to not have /proc
+	 available to this process (e.g., because it runs in a chroot
+	 environment.  Don't fail in this case.  */
+      if (errno == ENOENT
+	  /* The kernel has a bug in that a process is denied access
+	     to the /proc filesystem if it is set[ug]id.  There has
+	     been no willingness to change this in the kernel so
+	     far.  */
+	  || errno == EACCES)
 	return 1;
       return -1;
     }
diff --git a/sysdeps/unix/sysv/linux/s390/bits/mman.h b/sysdeps/unix/sysv/linux/s390/bits/mman.h
index ac94bb20b2..90604c8322 100644
--- a/sysdeps/unix/sysv/linux/s390/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/s390/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for POSIX memory map interface.  Linux/s390 version.
-   Copyright (C) 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002, 2003, 2005 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
@@ -79,6 +79,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
index 2e51f04e65..61f018621b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h
@@ -27,9 +27,23 @@
 #define SC_FLGS 0x000
 #define SC_LINK 0x004
 #define SC_STCK 0x008
+#define SC_STSZ 0x010
 #define SC_PSW  0x018
 #define SC_GPRS 0x020
 #define SC_ACRS 0x060
 #define SC_FPC  0x0A0
 #define SC_FPRS 0x0A8
 #define SC_MASK 0x128
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_flags, SC_FLGS);				\
+  TEST (uc_link, SC_LINK);				\
+  TEST (uc_stack.ss_sp, SC_STCK);			\
+  TEST (uc_stack.ss_size, SC_STSZ);			\
+  TEST (uc_mcontext.psw, SC_PSW);			\
+  TEST (uc_mcontext.gregs, SC_GPRS);			\
+  TEST (uc_mcontext.aregs, SC_ACRS);			\
+  TEST (uc_mcontext.fpregs.fpc, SC_FPC);		\
+  TEST (uc_mcontext.fpregs.fprs, SC_FPRS);		\
+  TEST (uc_sigmask, SC_MASK);
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.h b/sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.h
index 6d223a08a6..28ef915fc1 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.h
@@ -27,6 +27,7 @@
 #define SC_FLGS 0x000
 #define SC_LINK 0x008
 #define SC_STCK 0x010
+#define SC_STSZ 0x020
 #define SC_PSW  0x028
 #define SC_GPRS 0x038
 #define SC_ACRS 0x0B8
@@ -34,3 +35,15 @@
 #define SC_FPRS 0x100
 #define SC_MASK 0x180
 
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_flags, SC_FLGS);				\
+  TEST (uc_link, SC_LINK);				\
+  TEST (uc_stack.ss_sp, SC_STCK);			\
+  TEST (uc_stack.ss_size, SC_STSZ);			\
+  TEST (uc_mcontext.psw, SC_PSW);			\
+  TEST (uc_mcontext.gregs, SC_GPRS);			\
+  TEST (uc_mcontext.aregs, SC_ACRS);			\
+  TEST (uc_mcontext.fpregs.fpc, SC_FPC);		\
+  TEST (uc_mcontext.fpregs.fprs, SC_FPRS);		\
+  TEST (uc_sigmask, SC_MASK);
diff --git a/sysdeps/unix/sysv/linux/sh/bits/mman.h b/sysdeps/unix/sysv/linux/sh/bits/mman.h
index 656b5b673b..a3c690b6c6 100644
--- a/sysdeps/unix/sysv/linux/sh/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/sh/bits/mman.h
@@ -78,6 +78,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/sh/makecontext.S b/sysdeps/unix/sysv/linux/sh/makecontext.S
new file mode 100644
index 0000000000..deb6181750
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/makecontext.S
@@ -0,0 +1,145 @@
+/* Create new context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/* void __makecontext (struct ucontext *ucp, void (*func)(), int argc, ...);
+  __makecontext sets up a stack and registers for context to run a given
+  function.  The registers are set up like this:
+    r4-r7: parameters 1 to 4
+    r8	 : uc_link from ucontext structure
+    pc	 : (*func) pointer
+    pr	 : address of exitcode
+    r15	 : stack pointer for func.  */
+
+	.text
+	.align	5
+	cfi_startproc
+ENTRY(__makecontext)
+	mov	#4, r3
+	mov.l	@(oSS_SP,r4), r1
+	mov.l	@(oSS_SIZE,r4), r2
+	add	r1, r2
+	cmp/gt	r6, r3
+	bf/s	1f
+	 shlr2	r2
+	sub	r6, r2
+	add	r3, r2
+1:
+	shll2	r2
+	mov	#oR15, r0
+	mov.l	@(oLINK,r4), r1
+	mov.l	r2, @(r0,r4)
+	mov.l	r1, @(oR8,r4)
+	mov	#oPC, r0
+	mov.l	r5, @(r0,r4)
+
+	cmp/pl	r6
+	bf/s	.L1
+	 dt	r6
+	mov.l	r7, @(oR4,r4)
+	cmp/pl	r6
+	bf/s	.L1
+	 dt	r6
+	mov.l	@(0,r15), r1
+	mov.l	r1, @(oR5,r4)
+	cmp/pl	r6
+	bf/s	.L1
+	 dt	r6
+	mov.l	@(4,r15), r1
+	mov.l	r1, @(oR6,r4)
+	cmp/pl	r6
+	bf/s	.L1
+	 dt	r6
+	mov.l	@(8,r15), r1
+	mov.l	r1, @(oR7,r4)
+	mov	#12,r0
+.L0:
+	cmp/pl	r6
+	bf/s	.L1
+	 dt	r6
+	mov.l	@(r0,r15), r1
+	mov.l	r1, @r2
+	add	#4, r0
+	bra	.L0
+	 add	#4, r2
+.L1:
+#ifdef PIC
+	mova	.Lexitcode, r0
+#else
+	mov.l	.L2, r0
+#endif
+	add	#oPR, r4
+	rts
+	 mov.l	r0, @r4
+#ifndef PIC
+	.align	2
+.L2:
+	.long	.Lexitcode
+#endif
+	cfi_endproc
+
+	.align	5
+.Lexitcode:
+	tst	r8, r8
+	bt/s	2f
+	 mov	r8, r4
+#ifdef PIC
+	mova	.Lgot, r0
+	mov.l	.Lgot, r12
+	add	r0, r12
+	mov.l	.L3, r1
+	bsrf	r1
+.LPCS0:
+	 nop
+#else
+	mov.l	.L3, r1
+	jsr	@r1
+	 nop
+#endif
+2:
+	mov.l	.L4, r1
+#ifdef PIC
+	add	r12, r1
+#endif
+	jsr	@r1
+	 mov	r0, r4
+0:
+	bra	0b
+	 nop
+
+	.align	2
+#ifdef PIC
+.Lgot:
+	.long	_GLOBAL_OFFSET_TABLE_
+.L3:
+	.long	__setcontext@PLT-(.LPCS0+2-(.))
+.L4:
+	.long	HIDDEN_JUMPTARGET(exit)@GOTOFF
+#else
+.L3:
+	.long	__setcontext
+.L4:
+	.long	HIDDEN_JUMPTARGET(exit)
+#endif
+PSEUDO_END(__makecontext)
+
+weak_alias (__makecontext, makecontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S
new file mode 100644
index 0000000000..3ea47d4a5c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/getcontext.S
@@ -0,0 +1,90 @@
+/* Save current context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __getcontext (ucontext_t *uc);  */
+
+	.text
+	.align  5
+	cfi_startproc
+ENTRY(__getcontext)
+
+	/* Return value of getcontext.  R0 is the only register whose
+	   value is not preserved.  */
+	mov	#0, r0
+	mov.l	r0, @(oR0,r4)
+	mov.l	r1, @(oR1,r4)
+	mov.l	r2, @(oR2,r4)
+	mov.l	r3, @(oR3,r4)
+	mov.l	r4, @(oR4,r4)
+	mov.l	r5, @(oR5,r4)
+	mov.l	r6, @(oR6,r4)
+	mov.l	r7, @(oR7,r4)
+	mov	r4, r0
+	add	#(oMACL+4), r0
+	sts.l	macl, @-r0
+	sts.l	mach, @-r0
+	stc.l	gbr, @-r0
+
+	/* Save T flag to SR.  */
+	movt	r1
+	mov.l	r1, @-r0
+	sts.l	pr, @-r0
+
+	/* The return address of getcontext is the restart pc.  */
+	sts.l	pr, @-r0
+
+	mov.l	r15, @-r0
+	mov.l	r14, @-r0
+	mov.l	r13, @-r0
+	mov.l	r12, @-r0
+	mov.l	r11, @-r0
+	mov.l	r10, @-r0
+	mov.l	r9, @-r0
+	mov.l	r8, @-r0
+
+	/* sigprocmask (SIG_BLOCK, NULL, &uc->uc_sigmask).  */
+	mov	r4, r6
+	add	#oSIGMASK, r6
+	mov	#SIG_BLOCK, r4
+	mov	#0, r5
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, r1
+	mov	#-12, r2
+	shad	r2, r1
+	not	r1, r1			// r1=0 means r0 = -1 to -4095
+	tst	r1, r1			// i.e. error in linux
+	bf	.Lgetcontext_end
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lgetcontext_end:
+	/* All done, return 0 for success.  */
+	mov	#0, r0
+.Lpseudo_end:
+	rts
+	 nop
+
+	cfi_endproc
+PSEUDO_END(__getcontext)
+
+weak_alias (__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S
new file mode 100644
index 0000000000..30fbf7dec3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/setcontext.S
@@ -0,0 +1,101 @@
+/* Install given context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __setcontext (const ucontext_t *uc);  */
+
+	.text
+	.align  5
+	cfi_startproc
+ENTRY(__setcontext)
+
+	mov	r4, r8
+
+	/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL).  */
+	mov	r4, r5
+	add	#oSIGMASK, r5
+	mov	#SIG_SETMASK, r4
+	mov	#0, r6
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, r1
+	mov	#-12, r2
+	shad	r2, r1
+	not	r1, r1			// r1=0 means r0 = -1 to -4095
+	tst	r1, r1			// i.e. error in linux
+	bf	.Lsetcontext_restore
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+
+.Lsetcontext_restore:
+	mov	r8, r0
+	add	#(oPC), r0
+	mov.l	@r0+, r2
+	lds.l	@r0+, pr
+
+	/* Restore T frag.  */
+	mov.l	@r0+, r1
+	shlr	r1
+	/* Skip GBR which is used for thread pointer.  */
+	add	#4, r0
+
+	lds.l	@r0+, mach
+	lds.l	@r0+, macl
+
+	mov	r8, r0
+	add	#(oR9), r0
+	mov.l	@r0+, r9
+	mov.l	@r0+, r10
+	mov.l	@r0+, r11
+	mov.l	@r0+, r12
+	mov.l	@r0+, r13
+	mov.l	@r0+, r14
+	mov.l	@r0+, r15
+
+	mov	r8, r0
+	mov.l	@(oR0,r0), r1
+	mov.l	r1, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r1, 0)
+	mov.l	r2, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r2, 0)
+
+	mov.l	@(oR1,r0), r1
+	mov.l	@(oR2,r0), r2
+	mov.l	@(oR3,r0), r3
+	mov.l	@(oR4,r0), r4
+	mov.l	@(oR5,r0), r5
+	mov.l	@(oR6,r0), r6
+	mov.l	@(oR7,r0), r7
+	mov.l	@(oR8,r0), r8
+	mov.l	@r15+, r0
+	jmp	@r0
+	 mov.l	@r15+, r0
+
+	cfi_endproc
+PSEUDO_END(__setcontext)
+
+weak_alias (__setcontext, setcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S
new file mode 100644
index 0000000000..aa0129e9ac
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/swapcontext.S
@@ -0,0 +1,134 @@
+/* Save current context and install the given one.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __swapcontext (ucontext_t *ouc, const ucontext_t *uc);  */
+
+	.text
+	.align  5
+	cfi_startproc
+ENTRY(__swapcontext)
+
+	/* Return value of getcontext.  R0 is the only register whose
+	   value is not preserved.  */
+	mov	#0, r0
+	mov.l	r0, @(oR0,r4)
+	mov.l	r1, @(oR1,r4)
+	mov.l	r2, @(oR2,r4)
+	mov.l	r3, @(oR3,r4)
+	mov.l	r4, @(oR4,r4)
+	mov.l	r5, @(oR5,r4)
+	mov.l	r6, @(oR6,r4)
+	mov.l	r7, @(oR7,r4)
+	mov	r4, r0
+	add	#(oMACL+4), r0
+	sts.l	macl, @-r0
+	sts.l	mach, @-r0
+	stc.l	gbr, @-r0
+
+	/* Save T flag to SR.  */
+	movt	r1
+	mov.l	r1, @-r0
+	sts.l	pr, @-r0
+
+	/* The return address of getcontext is the restart pc.  */
+	sts.l	pr, @-r0
+
+	mov.l	r15, @-r0
+	mov.l	r14, @-r0
+	mov.l	r13, @-r0
+	mov.l	r12, @-r0
+	mov.l	r11, @-r0
+	mov.l	r10, @-r0
+	mov.l	r9, @-r0
+	mov.l	r8, @-r0
+
+	mov	r5, r8
+
+	/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, &ouc->uc_sigmask).  */
+	add	#oSIGMASK, r5
+	mov	r4, r6
+	add	#oSIGMASK, r6
+	mov	#SIG_SETMASK, r4
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, r1
+	mov	#-12, r2
+	shad	r2, r1
+	not	r1, r1			// r1=0 means r0 = -1 to -4095
+	tst	r1, r1			// i.e. error in linux
+	bf	.Lswapcontext_restore
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+.Lswapcontext_restore:	
+	mov	r8, r0
+	add	#(oPC), r0
+	mov.l	@r0+, r2
+	lds.l	@r0+, pr
+
+	/* Restore T frag.  */
+	mov.l	@r0+, r1
+	shlr	r1
+	/* Skip GBR which is used for thread pointer.  */
+	add	#4, r0
+
+	lds.l	@r0+, mach
+	lds.l	@r0+, macl
+
+	mov	r8, r0
+	add	#(oR9), r0
+	mov.l	@r0+, r9
+	mov.l	@r0+, r10
+	mov.l	@r0+, r11
+	mov.l	@r0+, r12
+	mov.l	@r0+, r13
+	mov.l	@r0+, r14
+	mov.l	@r0+, r15
+
+	mov	r8, r0
+	mov.l	@(oR0,r0), r1
+	mov.l	r1, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r1, 0)
+	mov.l	r2, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r2, 0)
+
+	mov.l	@(oR1,r0), r1
+	mov.l	@(oR2,r0), r2
+	mov.l	@(oR3,r0), r3
+	mov.l	@(oR4,r0), r4
+	mov.l	@(oR5,r0), r5
+	mov.l	@(oR6,r0), r6
+	mov.l	@(oR7,r0), r7
+	mov.l	@(oR8,r0), r8
+	mov.l	@r15+, r0
+	jmp	@r0
+	 mov.l	@r15+, r0
+	
+	cfi_endproc
+PSEUDO_END(__swapcontext)
+
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h b/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h
new file mode 100644
index 0000000000..946df0dfd6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/sys/ucontext.h
@@ -0,0 +1,102 @@
+/* Copyright (C) 1999, 2000, 2001, 2005 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.  */
+
+/* Where is System V/SH ABI?  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
+
+
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NFPREG	16
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NFPREG];
+
+#ifdef __USE_GNU
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0	R0
+  R1 = 1,
+#define R1	R1
+  R2 = 2,
+#define R2	R2
+  R3 = 3,
+#define R3	R3
+  R4 = 4,
+#define R4	R4
+  R5 = 5,
+#define R5	R5
+  R6 = 6,
+#define R6	R6
+  R7 = 7,
+#define R7	R7
+  R8 = 8,
+#define R8	R8
+  R9 = 9,
+#define R9	R9
+  R10 = 10,
+#define R10	R10
+  R11 = 11,
+#define R11	R11
+  R12 = 12,
+#define R12	R12
+  R13 = 13,
+#define R13	R13
+  R14 = 14,
+#define R14	R14
+  R15 = 15,
+#define R15	R15
+};
+#endif
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    unsigned int oldmask;
+    gregset_t gregs;
+    unsigned int pc;
+    unsigned int pr;
+    unsigned int sr;
+    unsigned int gbr;
+    unsigned int mach;
+    unsigned int macl;
+  } mcontext_t;
+
+/* Userlevel context.  */
+typedef struct ucontext
+  {
+    unsigned long int uc_flags;
+    struct ucontext *uc_link;
+    stack_t uc_stack;
+    mcontext_t uc_mcontext;
+    __sigset_t uc_sigmask;
+  } ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h
new file mode 100644
index 0000000000..d8483dbe64
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh3/ucontext_i.h
@@ -0,0 +1,79 @@
+/* Offsets and other constants needed in the *context() function
+   implementation.
+   Copyright (C) 2005 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.  */
+
+#define SIG_BLOCK	0
+#define SIG_SETMASK	2
+
+/* Offsets of the fields in the ucontext_t structure.  */
+#define oLINK		4
+#define oSS_SP		8
+#define oSS_SIZE	16
+#define oR0		24
+#define oR1		28
+#define oR2		32
+#define oR3		36
+#define oR4		40
+#define oR5		44
+#define oR6		48
+#define oR7		52
+#define oR8		56
+#define oR9		60
+#define oR10		64
+#define oR11		68
+#define oR12		72
+#define oR13		76
+#define oR14		80
+#define oR15		84
+#define oPC		88
+#define oPR		92
+#define oSR		96
+#define oGBR		100
+#define oMACH		104
+#define oMACL		108
+#define oSIGMASK	112
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_link, oLINK);				\
+  TEST (uc_stack.ss_sp, oSS_SP);			\
+  TEST (uc_stack.ss_size, oSS_SIZE);			\
+  TEST (uc_mcontext.gregs[R0], oR0);			\
+  TEST (uc_mcontext.gregs[R1], oR1);			\
+  TEST (uc_mcontext.gregs[R2], oR2);			\
+  TEST (uc_mcontext.gregs[R3], oR3);			\
+  TEST (uc_mcontext.gregs[R4], oR4);			\
+  TEST (uc_mcontext.gregs[R5], oR5);			\
+  TEST (uc_mcontext.gregs[R6], oR6);			\
+  TEST (uc_mcontext.gregs[R7], oR7);			\
+  TEST (uc_mcontext.gregs[R8], oR8);			\
+  TEST (uc_mcontext.gregs[R9], oR9);			\
+  TEST (uc_mcontext.gregs[R10], oR10);			\
+  TEST (uc_mcontext.gregs[R11], oR11);			\
+  TEST (uc_mcontext.gregs[R12], oR12);			\
+  TEST (uc_mcontext.gregs[R13], oR13);			\
+  TEST (uc_mcontext.gregs[R14], oR14);			\
+  TEST (uc_mcontext.gregs[R15], oR15);			\
+  TEST (uc_mcontext.pc, oPC);				\
+  TEST (uc_mcontext.pr, oPR);				\
+  TEST (uc_mcontext.sr, oSR);				\
+  TEST (uc_mcontext.gbr, oGBR);				\
+  TEST (uc_mcontext.mach, oMACH);			\
+  TEST (uc_mcontext.macl, oMACL);			\
+  TEST (uc_sigmask, oSIGMASK);
diff --git a/sysdeps/unix/sysv/linux/sh/sh4/getcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/getcontext.S
new file mode 100644
index 0000000000..380c4591dd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh4/getcontext.S
@@ -0,0 +1,133 @@
+/* Save current context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __getcontext (ucontext_t *uc);  */
+
+	.text
+	.align  5
+	cfi_startproc
+ENTRY(__getcontext)
+
+	/* Return value of getcontext.  R0 is the only register whose
+	   value is not preserved.  */
+	mov	#0, r0
+	mov.l	r0, @(oR0,r4)
+	mov.l	r1, @(oR1,r4)
+	mov.l	r2, @(oR2,r4)
+	mov.l	r3, @(oR3,r4)
+	mov.l	r4, @(oR4,r4)
+	mov.l	r5, @(oR5,r4)
+	mov.l	r6, @(oR6,r4)
+	mov.l	r7, @(oR7,r4)
+	mov	r4, r0
+	add	#(oMACL+4), r0
+	sts.l	macl, @-r0
+	sts.l	mach, @-r0
+	stc.l	gbr, @-r0
+
+	/* Save T flag to SR.  */
+	movt	r1
+	mov.l	r1, @-r0
+	sts.l	pr, @-r0
+
+	/* The return address of getcontext is the restart pc.  */
+	sts.l	pr, @-r0
+
+	mov.l	r15, @-r0
+	mov.l	r14, @-r0
+	mov.l	r13, @-r0
+	mov.l	r12, @-r0
+	mov.l	r11, @-r0
+	mov.l	r10, @-r0
+	mov.l	r9, @-r0
+	mov.l	r8, @-r0
+
+	mov	r4, r0
+	/* We need 2 add instruction because oFPUL+4 > 127.  */
+	add	#124,r0
+	add	#(oFPUL+4-124),r0
+	sts.l	fpul, @-r0
+	sts.l	fpscr, @-r0
+	frchg
+	fmov.s	fr15, @-r0
+	fmov.s	fr14, @-r0
+	fmov.s	fr13, @-r0
+	fmov.s	fr12, @-r0
+	fmov.s	fr11, @-r0
+	fmov.s	fr10, @-r0
+	fmov.s	fr9, @-r0
+	fmov.s	fr8, @-r0
+	fmov.s	fr7, @-r0
+	fmov.s	fr6, @-r0
+	fmov.s	fr5, @-r0
+	fmov.s	fr4, @-r0
+	fmov.s	fr3, @-r0
+	fmov.s	fr2, @-r0
+	fmov.s	fr1, @-r0
+	fmov.s	fr0, @-r0
+	frchg
+	fmov.s	fr15, @-r0
+	fmov.s	fr14, @-r0
+	fmov.s	fr13, @-r0
+	fmov.s	fr12, @-r0
+	fmov.s	fr11, @-r0
+	fmov.s	fr10, @-r0
+	fmov.s	fr9, @-r0
+	fmov.s	fr8, @-r0
+	fmov.s	fr7, @-r0
+	fmov.s	fr6, @-r0
+	fmov.s	fr5, @-r0
+	fmov.s	fr4, @-r0
+	fmov.s	fr3, @-r0
+	fmov.s	fr2, @-r0
+	fmov.s	fr1, @-r0
+	fmov.s	fr0, @-r0
+
+	/* sigprocmask (SIG_BLOCK, NULL, &uc->uc_sigmask).  */
+	mov	r4, r6
+	/* We need 2 add instruction because oSIGMASK > 127.  */
+	add	#(oSIGMASK/2), r6
+	add	#(oSIGMASK/2), r6
+	mov	#SIG_BLOCK, r4
+	mov	#0, r5
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, r1
+	mov	#-12, r2
+	shad	r2, r1
+	not	r1, r1			// r1=0 means r0 = -1 to -4095
+	tst	r1, r1			// i.e. error in linux
+	bf	.Lgetcontext_end
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lgetcontext_end:
+	/* All done, return 0 for success.  */
+	mov	#0, r0
+.Lpseudo_end:
+	rts
+	 nop
+
+	cfi_endproc
+PSEUDO_END(__getcontext)
+
+weak_alias (__getcontext, getcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh4/setcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/setcontext.S
new file mode 100644
index 0000000000..9e98910b4b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh4/setcontext.S
@@ -0,0 +1,141 @@
+/* Install given context.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __setcontext (const ucontext_t *uc);  */
+
+	.text
+	.align  5
+	cfi_startproc
+ENTRY(__setcontext)
+
+	mov	r4, r8
+
+	/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, NULL).  */
+	mov	r4, r5
+	add	#(oSIGMASK/2), r5
+	add	#(oSIGMASK/2), r5
+	mov	#SIG_SETMASK, r4
+	mov	#0, r6
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, r1
+	mov	#-12, r2
+	shad	r2, r1
+	not	r1, r1			// r1=0 means r0 = -1 to -4095
+	tst	r1, r1			// i.e. error in linux
+	bf	.Lsetcontext_restore
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+
+.Lsetcontext_restore:
+	mov	r8, r0
+	add	#(oFR0),r0
+	fmov.s	@r0+, fr0
+	fmov.s	@r0+, fr1
+	fmov.s	@r0+, fr2
+	fmov.s	@r0+, fr3
+	fmov.s	@r0+, fr4
+	fmov.s	@r0+, fr5
+	fmov.s	@r0+, fr6
+	fmov.s	@r0+, fr7
+	fmov.s	@r0+, fr8
+	fmov.s	@r0+, fr9
+	fmov.s	@r0+, fr10
+	fmov.s	@r0+, fr11
+	fmov.s	@r0+, fr12
+	fmov.s	@r0+, fr13
+	fmov.s	@r0+, fr14
+	fmov.s	@r0+, fr15
+	frchg
+	fmov.s	@r0+, fr0
+	fmov.s	@r0+, fr1
+	fmov.s	@r0+, fr2
+	fmov.s	@r0+, fr3
+	fmov.s	@r0+, fr4
+	fmov.s	@r0+, fr5
+	fmov.s	@r0+, fr6
+	fmov.s	@r0+, fr7
+	fmov.s	@r0+, fr8
+	fmov.s	@r0+, fr9
+	fmov.s	@r0+, fr10
+	fmov.s	@r0+, fr11
+	fmov.s	@r0+, fr12
+	fmov.s	@r0+, fr13
+	fmov.s	@r0+, fr14
+	fmov.s	@r0+, fr15
+	frchg
+	lds.l	@r0+, fpscr
+	lds.l	@r0+, fpul
+
+	mov	r8, r0
+	add	#(oPC), r0
+	mov.l	@r0+, r2
+	lds.l	@r0+, pr
+
+	/* Restore T frag.  */
+	mov.l	@r0+, r1
+	shlr	r1
+	/* Skip GBR which is used for thread pointer.  */
+	add	#4, r0
+
+	lds.l	@r0+, mach
+	lds.l	@r0+, macl
+
+	mov	r8, r0
+	add	#(oR9), r0
+	mov.l	@r0+, r9
+	mov.l	@r0+, r10
+	mov.l	@r0+, r11
+	mov.l	@r0+, r12
+	mov.l	@r0+, r13
+	mov.l	@r0+, r14
+	mov.l	@r0+, r15
+
+	mov	r8, r0
+	mov.l	@(oR0,r0), r1
+	mov.l	r1, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r1, 0)
+	mov.l	r2, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r2, 0)
+
+	mov.l	@(oR1,r0), r1
+	mov.l	@(oR2,r0), r2
+	mov.l	@(oR3,r0), r3
+	mov.l	@(oR4,r0), r4
+	mov.l	@(oR5,r0), r5
+	mov.l	@(oR6,r0), r6
+	mov.l	@(oR7,r0), r7
+	mov.l	@(oR8,r0), r8
+	mov.l	@r15+, r0
+	jmp	@r0
+	 mov.l	@r15+, r0
+
+	cfi_endproc
+PSEUDO_END(__setcontext)
+
+weak_alias (__setcontext, setcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S b/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S
new file mode 100644
index 0000000000..1d58a40e70
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh4/swapcontext.S
@@ -0,0 +1,216 @@
+/* Save current context and install the given one.
+   Copyright (C) 2005 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 <sysdep.h>
+
+#include "ucontext_i.h"
+
+/*  int __swapcontext (ucontext_t *ouc, const ucontext_t *uc);  */
+
+	.text
+	.align  5
+	cfi_startproc
+ENTRY(__swapcontext)
+
+	/* Return value of getcontext.  R0 is the only register whose
+	   value is not preserved.  */
+	mov	#0, r0
+	mov.l	r0, @(oR0,r4)
+	mov.l	r1, @(oR1,r4)
+	mov.l	r2, @(oR2,r4)
+	mov.l	r3, @(oR3,r4)
+	mov.l	r4, @(oR4,r4)
+	mov.l	r5, @(oR5,r4)
+	mov.l	r6, @(oR6,r4)
+	mov.l	r7, @(oR7,r4)
+	mov	r4, r0
+	add	#(oMACL+4), r0
+	sts.l	macl, @-r0
+	sts.l	mach, @-r0
+	stc.l	gbr, @-r0
+
+	/* Save T flag to SR.  */
+	movt	r1
+	mov.l	r1, @-r0
+	sts.l	pr, @-r0
+
+	/* The return address of getcontext is the restart pc.  */
+	sts.l	pr, @-r0
+
+	mov.l	r15, @-r0
+	mov.l	r14, @-r0
+	mov.l	r13, @-r0
+	mov.l	r12, @-r0
+	mov.l	r11, @-r0
+	mov.l	r10, @-r0
+	mov.l	r9, @-r0
+	mov.l	r8, @-r0
+
+	mov	r4, r0
+	/* We need 2 add instruction because oFPUL+4 >= 127.  */
+	add	#124,r0
+	add	#(oFPUL+4-124),r0
+	sts.l	fpul, @-r0
+	sts.l	fpscr, @-r0
+	frchg
+	fmov.s	fr15, @-r0
+	fmov.s	fr14, @-r0
+	fmov.s	fr13, @-r0
+	fmov.s	fr12, @-r0
+	fmov.s	fr11, @-r0
+	fmov.s	fr10, @-r0
+	fmov.s	fr9, @-r0
+	fmov.s	fr8, @-r0
+	fmov.s	fr7, @-r0
+	fmov.s	fr6, @-r0
+	fmov.s	fr5, @-r0
+	fmov.s	fr4, @-r0
+	fmov.s	fr3, @-r0
+	fmov.s	fr2, @-r0
+	fmov.s	fr1, @-r0
+	fmov.s	fr0, @-r0
+	frchg
+	fmov.s	fr15, @-r0
+	fmov.s	fr14, @-r0
+	fmov.s	fr13, @-r0
+	fmov.s	fr12, @-r0
+	fmov.s	fr11, @-r0
+	fmov.s	fr10, @-r0
+	fmov.s	fr9, @-r0
+	fmov.s	fr8, @-r0
+	fmov.s	fr7, @-r0
+	fmov.s	fr6, @-r0
+	fmov.s	fr5, @-r0
+	fmov.s	fr4, @-r0
+	fmov.s	fr3, @-r0
+	fmov.s	fr2, @-r0
+	fmov.s	fr1, @-r0
+	fmov.s	fr0, @-r0
+
+	mov	r5, r8
+
+	/* sigprocmask (SIG_SETMASK, &uc->uc_sigmask, &ouc->uc_sigmask).  */
+	mov	#oSIGMASK, r1
+	extu.b	r1, r1
+	add	r1, r5
+	mov	r4, r6
+	add	r1, r6
+	mov	#SIG_SETMASK, r4
+	mov	#+SYS_ify(sigprocmask), r3
+	trapa	#0x13
+	mov     r0, r1
+	mov	#-12, r2
+	shad	r2, r1
+	not	r1, r1			// r1=0 means r0 = -1 to -4095
+	tst	r1, r1			// i.e. error in linux
+	bf	.Lswapcontext_restore
+.Lsyscall_error:	
+	SYSCALL_ERROR_HANDLER
+.Lpseudo_end:
+	rts
+	 nop
+.Lswapcontext_restore:	
+	mov	r8, r0
+	add	#(oFR0),r0
+	fmov.s	@r0+, fr0
+	fmov.s	@r0+, fr1
+	fmov.s	@r0+, fr2
+	fmov.s	@r0+, fr3
+	fmov.s	@r0+, fr4
+	fmov.s	@r0+, fr5
+	fmov.s	@r0+, fr6
+	fmov.s	@r0+, fr7
+	fmov.s	@r0+, fr8
+	fmov.s	@r0+, fr9
+	fmov.s	@r0+, fr10
+	fmov.s	@r0+, fr11
+	fmov.s	@r0+, fr12
+	fmov.s	@r0+, fr13
+	fmov.s	@r0+, fr14
+	fmov.s	@r0+, fr15
+	frchg
+	fmov.s	@r0+, fr0
+	fmov.s	@r0+, fr1
+	fmov.s	@r0+, fr2
+	fmov.s	@r0+, fr3
+	fmov.s	@r0+, fr4
+	fmov.s	@r0+, fr5
+	fmov.s	@r0+, fr6
+	fmov.s	@r0+, fr7
+	fmov.s	@r0+, fr8
+	fmov.s	@r0+, fr9
+	fmov.s	@r0+, fr10
+	fmov.s	@r0+, fr11
+	fmov.s	@r0+, fr12
+	fmov.s	@r0+, fr13
+	fmov.s	@r0+, fr14
+	fmov.s	@r0+, fr15
+	frchg
+	lds.l	@r0+, fpscr
+	lds.l	@r0+, fpul
+
+	mov	r8, r0
+	add	#(oPC), r0
+	mov.l	@r0+, r2
+	lds.l	@r0+, pr
+
+	/* Restore T frag.  */
+	mov.l	@r0+, r1
+	shlr	r1
+	/* Skip GBR which is used for thread pointer.  */
+	add	#4, r0
+
+	lds.l	@r0+, mach
+	lds.l	@r0+, macl
+
+	mov	r8, r0
+	add	#(oR9), r0
+	mov.l	@r0+, r9
+	mov.l	@r0+, r10
+	mov.l	@r0+, r11
+	mov.l	@r0+, r12
+	mov.l	@r0+, r13
+	mov.l	@r0+, r14
+	mov.l	@r0+, r15
+
+	mov	r8, r0
+	mov.l	@(oR0,r0), r1
+	mov.l	r1, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r1, 0)
+	mov.l	r2, @-r15
+	cfi_adjust_cfa_offset(4)
+	cfi_rel_offset (r2, 0)
+
+	mov.l	@(oR1,r0), r1
+	mov.l	@(oR2,r0), r2
+	mov.l	@(oR3,r0), r3
+	mov.l	@(oR4,r0), r4
+	mov.l	@(oR5,r0), r5
+	mov.l	@(oR6,r0), r6
+	mov.l	@(oR7,r0), r7
+	mov.l	@(oR8,r0), r8
+	mov.l	@r15+, r0
+	jmp	@r0
+	 mov.l	@r15+, r0
+	
+	cfi_endproc
+PSEUDO_END(__swapcontext)
+
+weak_alias (__swapcontext, swapcontext)
diff --git a/sysdeps/unix/sysv/linux/sh/sys/ucontext.h b/sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h
index 78729c48f9..cd831a7a21 100644
--- a/sysdeps/unix/sysv/linux/sh/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/sh/sh4/sys/ucontext.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1999, 2000, 2001, 2005 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
@@ -87,13 +87,19 @@ typedef freg_t fpregset_t[NFPREG];
 /* Context to describe whole processor state.  */
 typedef struct
   {
+    unsigned int oldmask;
     gregset_t gregs;
+    unsigned int pc;
+    unsigned int pr;
+    unsigned int sr;
+    unsigned int gbr;
+    unsigned int mach;
+    unsigned int macl;
     fpregset_t fpregs;
     fpregset_t xfpregs;
     unsigned int fpscr;
     unsigned int fpul;
-    unsigned int macl;
-    unsigned int mach;
+    unsigned int ownedfp;
   } mcontext_t;
 
 /* Userlevel context.  */
diff --git a/sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h b/sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h
new file mode 100644
index 0000000000..88f774f0ad
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sh/sh4/ucontext_i.h
@@ -0,0 +1,149 @@
+/* Offsets and other constants needed in the *context() function
+   implementation.
+   Copyright (C) 2005 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.  */
+
+#define SIG_BLOCK	0
+#define SIG_SETMASK	2
+
+/* Offsets of the fields in the ucontext_t structure.  */
+#define oLINK		4
+#define oSS_SP		8
+#define oSS_SIZE	16
+#define oR0		24
+#define oR1		28
+#define oR2		32
+#define oR3		36
+#define oR4		40
+#define oR5		44
+#define oR6		48
+#define oR7		52
+#define oR8		56
+#define oR9		60
+#define oR10		64
+#define oR11		68
+#define oR12		72
+#define oR13		76
+#define oR14		80
+#define oR15		84
+#define oPC		88
+#define oPR		92
+#define oSR		96
+#define oGBR		100
+#define oMACH		104
+#define oMACL		108
+#define oFR0		112
+#define oFR1		116
+#define oFR2		120
+#define oFR3		124
+#define oFR4		128
+#define oFR5		132
+#define oFR6		136
+#define oFR7		140
+#define oFR8		144
+#define oFR9		148
+#define oFR10		152
+#define oFR11		156
+#define oFR12		160
+#define oFR13		164
+#define oFR14		168
+#define oFR15		172
+#define oXFR0		176
+#define oXFR1		180
+#define oXFR2		184
+#define oXFR3		188
+#define oXFR4		192
+#define oXFR5		196
+#define oXFR6		200
+#define oXFR7		204
+#define oXFR8		208
+#define oXFR9		212
+#define oXFR10		216
+#define oXFR11		220
+#define oXFR12		224
+#define oXFR13		228
+#define oXFR14		232
+#define oXFR15		236
+#define oFPSCR		240
+#define oFPUL		244
+#define oOWNEDFP	248
+#define oSIGMASK	252
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_link, oLINK);				\
+  TEST (uc_stack.ss_sp, oSS_SP);			\
+  TEST (uc_stack.ss_size, oSS_SIZE);			\
+  TEST (uc_mcontext.gregs[R0], oR0);			\
+  TEST (uc_mcontext.gregs[R1], oR1);			\
+  TEST (uc_mcontext.gregs[R2], oR2);			\
+  TEST (uc_mcontext.gregs[R3], oR3);			\
+  TEST (uc_mcontext.gregs[R4], oR4);			\
+  TEST (uc_mcontext.gregs[R5], oR5);			\
+  TEST (uc_mcontext.gregs[R6], oR6);			\
+  TEST (uc_mcontext.gregs[R7], oR7);			\
+  TEST (uc_mcontext.gregs[R8], oR8);			\
+  TEST (uc_mcontext.gregs[R9], oR9);			\
+  TEST (uc_mcontext.gregs[R10], oR10);			\
+  TEST (uc_mcontext.gregs[R11], oR11);			\
+  TEST (uc_mcontext.gregs[R12], oR12);			\
+  TEST (uc_mcontext.gregs[R13], oR13);			\
+  TEST (uc_mcontext.gregs[R14], oR14);			\
+  TEST (uc_mcontext.gregs[R15], oR15);			\
+  TEST (uc_mcontext.pc, oPC);				\
+  TEST (uc_mcontext.pr, oPR);				\
+  TEST (uc_mcontext.sr, oSR);				\
+  TEST (uc_mcontext.gbr, oGBR);				\
+  TEST (uc_mcontext.mach, oMACH);			\
+  TEST (uc_mcontext.macl, oMACL);			\
+  TEST (uc_mcontext.fpregs[0], oFR0);			\
+  TEST (uc_mcontext.fpregs[1], oFR1);			\
+  TEST (uc_mcontext.fpregs[2], oFR2);			\
+  TEST (uc_mcontext.fpregs[3], oFR3);			\
+  TEST (uc_mcontext.fpregs[4], oFR4);			\
+  TEST (uc_mcontext.fpregs[5], oFR5);			\
+  TEST (uc_mcontext.fpregs[6], oFR6);			\
+  TEST (uc_mcontext.fpregs[7], oFR7);			\
+  TEST (uc_mcontext.fpregs[8], oFR8);			\
+  TEST (uc_mcontext.fpregs[9], oFR9);			\
+  TEST (uc_mcontext.fpregs[10], oFR10);			\
+  TEST (uc_mcontext.fpregs[11], oFR11);			\
+  TEST (uc_mcontext.fpregs[12], oFR12);			\
+  TEST (uc_mcontext.fpregs[13], oFR13);			\
+  TEST (uc_mcontext.fpregs[14], oFR14);			\
+  TEST (uc_mcontext.fpregs[15], oFR15);			\
+  TEST (uc_mcontext.xfpregs[0], oXFR0);			\
+  TEST (uc_mcontext.xfpregs[1], oXFR1);			\
+  TEST (uc_mcontext.xfpregs[2], oXFR2);			\
+  TEST (uc_mcontext.xfpregs[3], oXFR3);			\
+  TEST (uc_mcontext.xfpregs[4], oXFR4);			\
+  TEST (uc_mcontext.xfpregs[5], oXFR5);			\
+  TEST (uc_mcontext.xfpregs[6], oXFR6);			\
+  TEST (uc_mcontext.xfpregs[7], oXFR7);			\
+  TEST (uc_mcontext.xfpregs[8], oXFR8);			\
+  TEST (uc_mcontext.xfpregs[9], oXFR9);			\
+  TEST (uc_mcontext.xfpregs[10], oXFR10);		\
+  TEST (uc_mcontext.xfpregs[11], oXFR11);		\
+  TEST (uc_mcontext.xfpregs[12], oXFR12);		\
+  TEST (uc_mcontext.xfpregs[13], oXFR13);		\
+  TEST (uc_mcontext.xfpregs[14], oXFR14);		\
+  TEST (uc_mcontext.xfpregs[15], oXFR15);		\
+  TEST (uc_mcontext.fpscr, oFPSCR);			\
+  TEST (uc_mcontext.fpul, oFPUL);			\
+  TEST (uc_mcontext.ownedfp, oOWNEDFP);			\
+  TEST (uc_sigmask, oSIGMASK);
diff --git a/sysdeps/unix/sysv/linux/sparc/bits/mman.h b/sysdeps/unix/sysv/linux/sparc/bits/mman.h
index 410a38e8a5..26425876ff 100644
--- a/sysdeps/unix/sysv/linux/sparc/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/sparc/bits/mman.h
@@ -80,6 +80,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 3dc8c5ec48..d5c3e650bc 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -40,7 +40,7 @@ mlock		-	mlock		i:bn	mlock
 mlockall	-	mlockall	i:i	mlockall
 mmap		-	mmap		b:aniiii	__mmap		mmap
 mount		EXTRA	mount		i:sssip	__mount	mount
-mremap		EXTRA	mremap		b:aini	__mremap	mremap
+mremap		EXTRA	mremap		b:ainip	__mremap	mremap
 munlock		-	munlock		i:ai	munlock
 munlockall	-	munlockall	i:	munlockall
 nanosleep	-	nanosleep	Ci:pp	__libc_nanosleep	__nanosleep nanosleep
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/mman.h b/sysdeps/unix/sysv/linux/x86_64/bits/mman.h
index a7bac26935..cc6be43a1c 100644
--- a/sysdeps/unix/sysv/linux/x86_64/bits/mman.h
+++ b/sysdeps/unix/sysv/linux/x86_64/bits/mman.h
@@ -1,5 +1,5 @@
 /* Definitions for POSIX memory map interface.  Linux/x86_64 version.
-   Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2003, 2005 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
@@ -79,6 +79,7 @@
 /* Flags for `mremap'.  */
 #ifdef __USE_GNU
 # define MREMAP_MAYMOVE	1
+# define MREMAP_FIXED	2
 #endif
 
 /* Advice to `madvise'.  */
diff --git a/sysdeps/unix/sysv/linux/x86_64/ucontext_i.h b/sysdeps/unix/sysv/linux/x86_64/ucontext_i.h
index 5451a308ee..e5099084cf 100644
--- a/sysdeps/unix/sysv/linux/x86_64/ucontext_i.h
+++ b/sysdeps/unix/sysv/linux/x86_64/ucontext_i.h
@@ -1,6 +1,6 @@
 /* Offsets and other constants needed in the *context() function
    implementation for Linux/x86-64.
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005 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
@@ -41,7 +41,29 @@
 #define oRAX		144
 #define oRCX		152
 #define oRIP		168
-#define oFPREGS		208
-#define oSIGMASK	280
-#define oFPREGSMEM	408
-#define oMXCSR		432
+#define oFPREGS		224
+#define oSIGMASK	296
+#define oFPREGSMEM	424
+#define oMXCSR		448
+
+/* Tests run in stdlib/tst-ucontext-off.  */
+#define TESTS \
+  TEST (uc_mcontext.gregs[REG_RBP], oRBP);				\
+  TEST (uc_mcontext.gregs[REG_RSP], oRSP);				\
+  TEST (uc_mcontext.gregs[REG_RBX], oRBX);				\
+  TEST (uc_mcontext.gregs[REG_R8], oR8);				\
+  TEST (uc_mcontext.gregs[REG_R9], oR9);				\
+  TEST (uc_mcontext.gregs[REG_R12], oR12);				\
+  TEST (uc_mcontext.gregs[REG_R13], oR13);				\
+  TEST (uc_mcontext.gregs[REG_R14], oR14);				\
+  TEST (uc_mcontext.gregs[REG_R15], oR15);				\
+  TEST (uc_mcontext.gregs[REG_RDI], oRDI);				\
+  TEST (uc_mcontext.gregs[REG_RSI], oRSI);				\
+  TEST (uc_mcontext.gregs[REG_RDX], oRDX);				\
+  TEST (uc_mcontext.gregs[REG_RAX], oRAX);				\
+  TEST (uc_mcontext.gregs[REG_RCX], oRCX);				\
+  TEST (uc_mcontext.gregs[REG_RIP], oRIP);				\
+  TEST (uc_mcontext.fpregs, oFPREGS);					\
+  TEST (uc_sigmask, oSIGMASK);						\
+  TEST (__fpregs_mem, oFPREGSMEM);					\
+  TEST (__fpregs_mem.mxcsr, oMXCSR);