Update.

1998-06-07 13:32  Ulrich Drepper  <drepper@cygnus.com>

	* libc.map: Add _dl_profile.
	* elf/dl-reloc.c (_dl_relocate_object): Take extra argument, pass
	this to ELF_DYNAMIC_RELOCATE.
	Always allocate array for relocation result if LD_PROFILE is defined.
	* elf/ldsodefs.h: Adjust prototypes.
	* elf/dl-open.c (_dl_open): Call relocation function with extra
	argument.
	* elf/rtld.c: Likewise.
	* elf/dl-profile.c (_dl_mcount): Don't mark as internal function.
	Correct loop condition.
	* elf/dynamic-link.h: Don't examine _dl_profile variable, pass
	consider_profile to runtime setup function.
	* sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Use
	_dl_runtime_profile for all shared objects if LD_PROFILE is defined.

	* elf/dl-support.c: Define __libc_stack_end.
	* elf/rtld.c: Likewise.
	* sysdeps/generic/libc-start.c: Store last stack address in
	__libc_stack_end.
	* sysdeps/i386/dl-machine.h (_dl_start_user): Store stack address.
	* sysdeps/i386/elf/start.s: Call __libc_start_main with extra argument.

	* elf/elf.h: Include <features.h>, not <sys/cdefs.h>.
	Include <stdint.h>, not <inttypes.h>.

	* elf/sprof.c: Implement flat profiling.

	* libio/fgetc.c: Call _IO_cleanup_region_end with 0 and call
	_IO_funlockfile explicitly.
	* libio/fileops.c: Likewise.
	* libio/fputc.c: Likewise.
	* libio/freopen.c: Likewise.
	* libio/freopen64.c: Likewise.
	* libio/fseek.c: Likewise.
	* libio/fseeko.c: Likewise.
	* libio/fseeko64.c: Likewise.
	* libio/ftello.c: Likewise.
	* libio/ftello64.c: Likewise.
	* libio/getc.c: Likewise.
	* libio/getchar.c: Likewise.
	* libio/iofclose.c: Likewise.
	* libio/iofflush.c: Likewise.
	* libio/iofgetpos.c: Likewise.
	* libio/iofgetpos64.c: Likewise.
	* libio/iofgets.c: Likewise.
	* libio/iofputs.c: Likewise.
	* libio/iofread.c: Likewise.
	* libio/iofsetpos.c: Likewise.
	* libio/iofsetpos64.c: Likewise.
	* libio/ioftell.c: Likewise.
	* libio/iofwrite.c: Likewise.
	* libio/iogetdelim.c: Likewise.
	* libio/iogets.c: Likewise.
	* libio/ioputs.c: Likewise.
	* libio/ioseekoff.c: Likewise.
	* libio/ioseekpos.c: Likewise.
	* libio/iosetbuffer.c: Likewise.
	* libio/iosetvbuf.c: Likewise.
	* libio/ioungetc.c: Likewise.
	* libio/iovsprintf.c: Likewise.
	* libio/iovsscanf.c: Likewise.
	* libio/oldfileops.c: Likewise.
	* libio/oldiofclose.c: Likewise.
	* libio/peekc.c: Likewise.
	* libio/putc.c: Likewise.
	* libio/putchar.c: Likewise.
	* libio/rewind.c: Likewise.

	* malloc/mtrace.c: Pretty print.

	* misc/mntent.h (struct mentent): Make string elements const char *.

	* nis/nis_printf.c: Optimize I/O a little bit.

	* signal/Makefile (distribute): Add sigset-cvt-mask.h.
	* sysdeps/generic/sigset-cvt-mask.h: New file.
	* sysdeps/unix/sysv/linux/sigset-cvt-mask.h: New file.
	* sysdeps/unix/sysv/sysv4/sigset-cvt-mask.h: New file.
	* sysdeps/posix/sigvec.c: Rewrite the use definitions from
	sigset-cvt-mask.h to do the dirty work.
	Patches by Joe Keane.

	* sysdeps/posix/mkstemp.c: Save one precious byte of rodata.

	* sysdeps/unix/sysv/linux/i386/sysdep.h: Rewrite PSEUDO etc to make
	syscall_error label in case of PIC anonymous.
	* sysdeps/unix/sysv/linux/i386/i686/sysdep.h: Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S: Adapt for this change.
	* sysdeps/unix/sysv/linux/i386/mmap.S: Adapt for this change.
	* sysdeps/unix/sysv/linux/i386/s_pread64.S: Adapt for this change.
	* sysdeps/unix/sysv/linux/i386/s_pwrite64.S: Adapt for this change.
	* sysdeps/unix/sysv/linux/i386/socket.S: Adapt for this change.
	* sysdeps/unix/sysv/linux/i386/syscall.S: Adapt for this change.

16 files changed, 231 insertions, 129 deletions

diff --git a/sysdeps/generic/libc-start.c b/sysdeps/generic/libc-start.c
index 3225a7ce5d..1e07929e7e 100644
--- a/sysdeps/generic/libc-start.c
+++ b/sysdeps/generic/libc-start.c
@@ -25,11 +25,12 @@ extern void __libc_init_first (int argc, char **argv, char **envp);
 extern int _dl_starting_up;
 weak_extern (_dl_starting_up)
 extern int __libc_multiple_libcs;
+extern void *__libc_stack_end;
 
 int
 __libc_start_main (int (*main) (int, char **, char **), int argc,
 		   char **argv, void (*init) (void), void (*fini) (void),
-		   void (*rtld_fini) (void))
+		   void (*rtld_fini) (void), void *stack_end)
 {
 #ifndef PIC
   /* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
@@ -38,6 +39,9 @@ __libc_start_main (int (*main) (int, char **, char **), int argc,
   int *dummy_addr = &_dl_starting_up;
 
   __libc_multiple_libcs = dummy_addr && !_dl_starting_up;
+
+  /* Store the lowest stack address.  */
+  __libc_stack_end = stack_end;
 #endif
 
   /* Set the global _environ variable correctly.  */
diff --git a/sysdeps/generic/sigset-cvt-mask.h b/sysdeps/generic/sigset-cvt-mask.h
new file mode 100644
index 0000000000..749ed5e613
--- /dev/null
+++ b/sysdeps/generic/sigset-cvt-mask.h
@@ -0,0 +1,24 @@
+/* Convert between lowlevel sigmask and libc representation of sigset_t.
+   Generic version.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Joe Keane <jgk@jgk.org>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define sigset_set_old_mask(set, mask) (*(set) = (unsigned long int) (mask))
+
+#define sigset_get_old_mask(set, mask) ((mask) = (unsigned int) *(set))
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 2f936e3d1e..542c35f190 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -105,8 +105,11 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
       if (profile)
 	{
 	  got[2] = (Elf32_Addr) &_dl_runtime_profile;
-	  /* Say that we really want profiling and the timers are started.  */
-	  _dl_profile_map = l;
+
+	  if (_dl_name_match_p (_dl_profile, l))
+	    /* This is the object we are looking for.  Say that we really
+	       want profiling and the timers are started.  */
+	    _dl_profile_map = l;
 	}
       else
 	/* This function will get called to fix up the GOT entry indicated by
@@ -209,6 +212,8 @@ _dl_start_user:\n\
 	call 0f\n\
 0:	popl %ebx\n\
 	addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ebx\n\
+	# Store the highest stack address\n\
+	movl %esp,__libc_stack_end@GOT(%ebx)\n\
 	# See if we were run as a command with the executable file\n\
 	# name as an extra leading argument.\n\
 	movl _dl_skip_args@GOT(%ebx), %eax\n\
diff --git a/sysdeps/i386/elf/start.S b/sysdeps/i386/elf/start.S
index 95f74ed647..019e749a6f 100644
--- a/sysdeps/i386/elf/start.S
+++ b/sysdeps/i386/elf/start.S
@@ -53,6 +53,11 @@ _start:
 	   boundary to avoid penalties from misaligned accesses.  Thanks
 	   to Edward Seidl <seidl@janed.com> for pointing this out.  */
 	andl $0xfffffff8, %esp
+
+	/* Provide the highest stack address to the user code (for stacks
+	   which grow downwards).  */
+	pushl %esp
+
 	pushl %edx		/* Push address of the shared library
 				   termination function.  */
 
diff --git a/sysdeps/posix/mkstemp.c b/sysdeps/posix/mkstemp.c
index f0db5d5d53..2c9c96bdcc 100644
--- a/sysdeps/posix/mkstemp.c
+++ b/sysdeps/posix/mkstemp.c
@@ -33,7 +33,7 @@ int
 mkstemp (template)
      char *template;
 {
-  static const char letters[]
+  static const char letters[62]
     = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
   static uint64_t value;
   struct timeval tv;
diff --git a/sysdeps/posix/sigvec.c b/sysdeps/posix/sigvec.c
index 12285fad66..cc4839d73f 100644
--- a/sysdeps/posix/sigvec.c
+++ b/sysdeps/posix/sigvec.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 92, 94, 95, 96, 97 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 92, 94, 95, 96, 97, 98 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
@@ -20,55 +20,20 @@
 #include <errno.h>
 #include <stddef.h>
 
+/* Include macros to convert between `sigset_t' and old-style mask. */
+#include "sigset-cvt-mask.h"
 
 /* We use a wrapper handler to support SV_RESETHAND.  */
-
-static __sighandler_t wrapped_handlers[NSIG];
-static sigset_t wrapped_masks[NSIG];
-
-static void wrapper_handler __P ((int sig));
-static inline int convert_mask __P ((sigset_t *set, const int mask));
-
-static void
-wrapper_handler (sig)
-     int sig;
+struct sigvec_wrapper_data
 {
-  int save;
-  struct sigaction act;
+  __sighandler_t sw_handler;
+  unsigned int sw_mask;
+};
 
-  act.sa_handler = SIG_DFL;
-  act.sa_mask = wrapped_masks[sig];
-  act.sa_flags = 0;
-  save = errno;
-  (void) __sigaction (sig, &act, (struct sigaction *) NULL);
-  __set_errno (save);
+static void sigvec_wrapper_handler __P ((int sig));
 
-  (*wrapped_handlers[sig]) (sig);
-}
+static struct sigvec_wrapper_data sigvec_wrapper_data[NSIG];
 
-static inline int
-convert_mask (set, mask)
-     sigset_t *set;
-     const int mask;
-{
-  register int sig;
-
-  if (sizeof (*set) == sizeof (mask))
-    *(int *) set = mask;
-  else if (sizeof (*set) == sizeof (unsigned long int))
-    *(unsigned long int *) set = (unsigned int) mask;
-  else
-    {
-      if (__sigemptyset (set) < 0)
-	return -1;
-
-      for (sig = 1; sig < NSIG && sig <= sizeof (mask) * 8; ++sig)
-	if ((mask & sigmask (sig)) && __sigaddset (set, sig) < 0)
-	  return -1;
-    }
-
-  return 0;
-}
 
 /* If VEC is non-NULL, set the handler for SIG to the `sv_handler' member
    of VEC.  The signals in `sv_mask' will be blocked while the handler runs.
@@ -91,25 +56,32 @@ __sigvec (sig, vec, ovec)
 	n = NULL;
       else
 	{
-	  n = &new;
-	  n->sa_handler = vec->sv_handler;
-	  if (convert_mask (&n->sa_mask, vec->sv_mask) < 0)
-	    return -1;
-	  n->sa_flags = 0;
-
-	  if (vec->sv_flags & SV_ONSTACK)
+	  __sighandler_t handler;
+	  unsigned int mask;
+	  unsigned int sv_flags;
+	  unsigned int sa_flags;
+
+	  handler = vec->sv_handler;
+	  mask = vec->sv_mask;
+	  sv_flags = vec->sv_flags;
+	  sa_flags = 0;
+	  if (sv_flags & SV_ONSTACK)
 	    {
 #ifdef SA_ONSTACK
-	      n->sa_flags |= SA_ONSTACK;
+	      sa_flags |= SA_ONSTACK;
 #else
 	      __set_errno (ENOSYS);
 	      return -1;
 #endif
 	    }
 #ifdef SA_RESTART
-	  if (!(vec->sv_flags & SV_INTERRUPT))
-	    n->sa_flags |= SA_RESTART;
+	  if (!(sv_flags & SV_INTERRUPT))
+	    sa_flags |= SA_RESTART;
 #endif
+	  n = &new;
+	  new.sa_handler = handler;
+	  sigset_set_old_mask (&new.sa_mask, mask);
+	  new.sa_flags = sa_flags;
 	}
 
       if (__sigaction (sig, n, &old) < 0)
@@ -117,12 +89,18 @@ __sigvec (sig, vec, ovec)
     }
   else
     {
+      __sighandler_t handler;
+      unsigned int mask;
+      struct sigvec_wrapper_data *data;
       struct sigaction wrapper;
 
-      wrapper.sa_handler = wrapper_handler;
-      wrapped_handlers[sig] = vec->sv_handler;
-      if (convert_mask (&wrapped_masks[sig], vec->sv_mask) < 0)
-	return -1;
+      handler = vec->sv_handler;
+      mask = (unsigned int)vec->sv_mask;
+      data = &sigvec_wrapper_data[sig];
+      wrapper.sa_handler = sigvec_wrapper_handler;
+      /* FIXME: should we set wrapper.sa_mask, wrapper.sa_flags??  */
+      data->sw_handler = handler;
+      data->sw_mask = mask;
 
       if (__sigaction (sig, &wrapper, &old) < 0)
 	return -1;
@@ -130,38 +108,58 @@ __sigvec (sig, vec, ovec)
 
   if (ovec != NULL)
     {
-      register int i;
-      int mask = 0;
-
-      if (sizeof (int) == sizeof (sigset_t))
-	mask = *(int *) &old.sa_mask;
-      else if (sizeof (unsigned long int) == sizeof (sigset_t))
-	mask = *(unsigned long int *) &old.sa_mask;
-      else
-	for (i = 1; i < NSIG && i <= sizeof (mask) * 8; ++i)
-	  if (__sigismember (&old.sa_mask, i))
-	    mask |= sigmask (i);
-
-      ovec->sv_mask = mask;
-      ovec->sv_flags = 0;
+      __sighandler_t handler;
+      unsigned int sv_flags;
+      unsigned int sa_flags;
+      unsigned int mask;
+
+      handler = old.sa_handler;
+      sv_flags = 0;
+      sa_flags = old.sa_flags;
+      if (handler == sigvec_wrapper_handler)
+	{
+	  handler = sigvec_wrapper_data[sig].sw_handler;
+	  /* should we use data->sw_mask?? */
+	  sv_flags |= SV_RESETHAND;
+	}
+      sigset_get_old_mask (&old.sa_mask, mask);
 #ifdef SA_ONSTACK
-      if (old.sa_flags & SA_ONSTACK)
-	ovec->sv_flags |= SV_ONSTACK;
+     if (sa_flags & SA_ONSTACK)
+	sv_flags |= SV_ONSTACK;
 #endif
 #ifdef SA_RESTART
-      if (!(old.sa_flags & SA_RESTART))
+     if (!(sa_flags & SA_RESTART))
 #endif
-	ovec->sv_flags |= SV_INTERRUPT;
-      if (old.sa_handler == wrapper_handler)
-	{
-	  ovec->sv_flags |= SV_RESETHAND;
-	  ovec->sv_handler = wrapped_handlers[sig];
-	}
-      else
-	ovec->sv_handler = old.sa_handler;
+	sv_flags |= SV_INTERRUPT;
+      ovec->sv_handler = handler;
+      ovec->sv_mask = (int)mask;
+      ovec->sv_flags = (int)sv_flags;
     }
 
   return 0;
 }
 
 weak_alias (__sigvec, sigvec)
+
+
+static void
+sigvec_wrapper_handler (sig)
+     int sig;
+{
+  struct sigvec_wrapper_data *data;
+  unsigned int mask;
+  struct sigaction act;
+  int save;
+  __sighandler_t handler;
+
+  data = &sigvec_wrapper_data[sig];
+  mask = data->sw_mask;
+  act.sa_handler = SIG_DFL;
+  sigset_set_old_mask (&act.sa_mask, mask);
+  act.sa_flags = 0;
+  save = errno;
+  handler = data->sw_handler;
+  (void) __sigaction (sig, &act, (struct sigaction *) NULL);
+  __set_errno (save);
+  (*handler) (sig);
+}
diff --git a/sysdeps/unix/sysv/linux/i386/clone.S b/sysdeps/unix/sysv/linux/i386/clone.S
index 88d0e27549..d654d98c7a 100644
--- a/sysdeps/unix/sysv/linux/i386/clone.S
+++ b/sysdeps/unix/sysv/linux/i386/clone.S
@@ -33,10 +33,10 @@ ENTRY(__clone)
 	movl	$-EINVAL,%eax
 	movl	4(%esp),%ecx		/* no NULL function pointers */
 	testl	%ecx,%ecx
-	jz	syscall_error
+	jz	SYSCALL_ERROR_LABEL
 	movl	8(%esp),%ecx		/* no NULL stack pointers */
 	testl	%ecx,%ecx
-	jz	syscall_error
+	jz	SYSCALL_ERROR_LABEL
 
 	/* Insert the argument onto the new stack.  */
 	subl	$8,%ecx
@@ -56,7 +56,7 @@ ENTRY(__clone)
 	popl	%ebx
 
 	test	%eax,%eax
-	jl	syscall_error
+	jl	SYSCALL_ERROR_LABEL
 	jz	thread_start
 
 L(pseudo_end):
diff --git a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h b/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
index 001f3fc4d7..3f1391f8a4 100644
--- a/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/i686/sysdep.h
@@ -31,12 +31,10 @@
 /* Store (- %eax) into errno through the GOT.  */
 # ifdef _LIBC_REENTRANT
 #  define SYSCALL_ERROR_HANDLER						      \
-  .type syscall_error,@function;					      \
-0:movl (%esp),%ebx;							      \
+1:movl (%esp),%ebx;							      \
   ret;									      \
-syscall_error:								      \
-  pushl %ebx;								      \
-  call 0b;								      \
+0:pushl %ebx;								      \
+  call 1b;								      \
   addl $_GLOBAL_OFFSET_TABLE_, %ebx;					      \
   xorl %edx, %edx;							      \
   subl %eax, %edx;							      \
@@ -46,25 +44,22 @@ syscall_error:								      \
   popl %ebx;								      \
   movl %ecx, (%eax);							      \
   movl $-1, %eax;							      \
-  jmp L(pseudo_end);							      \
-  .size syscall_error,.-syscall_error;
+  jmp L(pseudo_end);
 /* A quick note: it is assumed that the call to `__errno_location' does
    not modify the stack!  */
 # else
 #  define SYSCALL_ERROR_HANDLER						      \
   .type syscall_error,@function;					      \
-0:movl (%esp),%ecx;							      \
+1:movl (%esp),%ecx;							      \
   ret;									      \
-syscall_error:								      \
-  call 0b;								      \
+0:call 1b;								      \
   addl $_GLOBAL_OFFSET_TABLE_, %ecx;					      \
   xorl %edx, %edx;							      \
   subl %eax, %edx;							      \
   movl errno@GOT(%ecx), %ecx;						      \
   movl %edx, (%ecx);							      \
   movl $-1, %eax;							      \
-  jmp L(pseudo_end);							      \
-  .size syscall_error,.-syscall_error;
+  jmp L(pseudo_end);
 # endif	/* _LIBC_REENTRANT */
 #endif	/* PIC */
 
diff --git a/sysdeps/unix/sysv/linux/i386/mmap.S b/sysdeps/unix/sysv/linux/i386/mmap.S
index 5c2449e961..e0dde22a9f 100644
--- a/sysdeps/unix/sysv/linux/i386/mmap.S
+++ b/sysdeps/unix/sysv/linux/i386/mmap.S
@@ -37,7 +37,7 @@ ENTRY (__mmap)
 
 	/* If 0 > %eax > -4096 there was an error.  */
 	cmpl $-4096, %eax
-	ja syscall_error
+	ja SYSCALL_ERROR_LABEL
 
 	/* Successful; return the syscall's value.  */
 L(pseudo_end):
diff --git a/sysdeps/unix/sysv/linux/i386/s_pread64.S b/sysdeps/unix/sysv/linux/i386/s_pread64.S
index 23d7d14ba5..7817cf7980 100644
--- a/sysdeps/unix/sysv/linux/i386/s_pread64.S
+++ b/sysdeps/unix/sysv/linux/i386/s_pread64.S
@@ -44,10 +44,10 @@ ENTRY (__syscall_pread64)
 	movl	0x10(%esp,1),%ebx
 	/* Load syscall number into %eax.  */
 	movl	$SYS_ify(pread), %eax
-	int	$0x80		/* Do the system call.  */
-	POPARGS_5		/* Restore register contents.  */
-	cmpl	$-4095, %eax	/* Check %eax for error.  */
-	jae	syscall_error	/* Jump to error handler if error.  */
+	int	$0x80			/* Do the system call.  */
+	POPARGS_5			/* Restore register contents.  */
+	cmpl	$-4095, %eax		/* Check %eax for error.  */
+	jae	SYSCALL_ERROR_LABEL	/* Jump to error handler if error.  */
 #endif
 L(pseudo_end):
 	ret			/* Return to caller.  */
diff --git a/sysdeps/unix/sysv/linux/i386/s_pwrite64.S b/sysdeps/unix/sysv/linux/i386/s_pwrite64.S
index 7b72d12f0b..89449b6fb5 100644
--- a/sysdeps/unix/sysv/linux/i386/s_pwrite64.S
+++ b/sysdeps/unix/sysv/linux/i386/s_pwrite64.S
@@ -44,10 +44,10 @@ ENTRY (__syscall_pwrite64)
 	movl	0x10(%esp,1),%ebx
 	/* Load syscall number into %eax.  */
 	movl	$SYS_ify(pwrite), %eax
-	int	$0x80		/* Do the system call.  */
-	POPARGS_5		/* Restore register contents.  */
-	cmpl	$-4095, %eax	/* Check %eax for error.  */
-	jae	syscall_error	/* Jump to error handler if error.  */
+	int	$0x80			/* Do the system call.  */
+	POPARGS_5			/* Restore register contents.  */
+	cmpl	$-4095, %eax		/* Check %eax for error.  */
+	jae	SYSCALL_ERROR_LABEL	/* Jump to error handler if error.  */
 #endif
 L(pseudo_end):
 	ret			/* Return to caller.  */
diff --git a/sysdeps/unix/sysv/linux/i386/socket.S b/sysdeps/unix/sysv/linux/i386/socket.S
index 4326676bc2..245d37a17f 100644
--- a/sysdeps/unix/sysv/linux/i386/socket.S
+++ b/sysdeps/unix/sysv/linux/i386/socket.S
@@ -55,7 +55,7 @@ ENTRY (__socket)
 
 	/* %eax is < 0 if there was an error.  */
 	cmpl $-125, %eax
-	jae syscall_error
+	jae SYSCALL_ERROR_LABEL
 
 	/* Successful; return the syscall's value.  */
 L(pseudo_end):
diff --git a/sysdeps/unix/sysv/linux/i386/syscall.S b/sysdeps/unix/sysv/linux/i386/syscall.S
index 349408de30..48328c2a0e 100644
--- a/sysdeps/unix/sysv/linux/i386/syscall.S
+++ b/sysdeps/unix/sysv/linux/i386/syscall.S
@@ -30,7 +30,7 @@ ENTRY (syscall)
 	int $0x80		/* Do the system call.  */
 	POPARGS_5		/* Restore register contents.  */
 	cmpl $-4095, %eax	/* Check %eax for error.  */
-	jae syscall_error	/* Jump to error handler if error.  */
+	jae SYSCALL_ERROR_LABEL	/* Jump to error handler if error.  */
 L(pseudo_end):
 	ret			/* Return to caller.  */
 
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
index 5231d3e9a1..8c046efed7 100644
--- a/sysdeps/unix/sysv/linux/i386/sysdep.h
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -46,13 +46,22 @@
    is a real error number.  Linus said he will make sure the no syscall
    returns a value in -1 .. -4095 as a valid result so we can savely
    test with -4095.  */
+
+/* We don't want the label for the error handle to be global when we define
+   it here.  */
+#ifdef PIC
+# define SYSCALL_ERROR_LABEL 0f
+#else
+# define SYSCALL_ERROR_LABEL syscall_error
+#endif
+
 #undef	PSEUDO
 #define	PSEUDO(name, syscall_name, args)				      \
   .text;								      \
   ENTRY (name)								      \
     DO_CALL (args, syscall_name);					      \
     cmpl $-4095, %eax;							      \
-    jae syscall_error;							      \
+    jae SYSCALL_ERROR_LABEL;						      \
   L(pseudo_end):
 
 #undef	PSEUDO_END
@@ -66,13 +75,11 @@
 /* Store (- %eax) into errno through the GOT.  */
 #ifdef _LIBC_REENTRANT
 #define SYSCALL_ERROR_HANDLER						      \
-  .type syscall_error,@function;					      \
-syscall_error:								      \
-  pushl %ebx;								      \
-  call 0f;								      \
-0:popl %ebx;								      \
+0:pushl %ebx;								      \
+  call 1f;								      \
+1:popl %ebx;								      \
   xorl %edx, %edx;							      \
-  addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ebx;				      \
+  addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx;				      \
   subl %eax, %edx;							      \
   pushl %edx;								      \
   call __errno_location@PLT;						      \
@@ -80,24 +87,20 @@ syscall_error:								      \
   popl %ebx;								      \
   movl %ecx, (%eax);							      \
   movl $-1, %eax;							      \
-  jmp L(pseudo_end);							      \
-  .size syscall_error,.-syscall_error;
+  jmp L(pseudo_end);
 /* A quick note: it is assumed that the call to `__errno_location' does
    not modify the stack!  */
 #else
 #define SYSCALL_ERROR_HANDLER						      \
-  .type syscall_error,@function;					      \
-syscall_error:								      \
-  call 0f;								      \
-0:popl %ecx;								      \
+0:call 1f;								      \
+1:popl %ecx;								      \
   xorl %edx, %edx;							      \
-  addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ecx;				      \
+  addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ecx;				      \
   subl %eax, %edx;							      \
   movl errno@GOT(%ecx), %ecx;						      \
   movl %edx, (%ecx);							      \
   movl $-1, %eax;							      \
-  jmp L(pseudo_end);							      \
-  .size syscall_error,.-syscall_error;
+  jmp L(pseudo_end);
 #endif	/* _LIBC_REENTRANT */
 #endif	/* PIC */
 
diff --git a/sysdeps/unix/sysv/linux/sigset-cvt-mask.h b/sysdeps/unix/sysv/linux/sigset-cvt-mask.h
new file mode 100644
index 0000000000..aefb805394
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigset-cvt-mask.h
@@ -0,0 +1,35 @@
+/* Convert between lowlevel sigmask and libc representation of sigset_t.
+   Linux version.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Joe Keane <jgk@jgk.org>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define sigset_set_old_mask(set, mask) \
+  do {									      \
+    unsigned long int *__ptr;						      \
+    int __cnt;								      \
+    __ptr = &(set)->__val[0];						      \
+    *__ptr++ = (unsigned long int) (mask);				      \
+    __cnt = _SIGSET_NWORDS - 2;						      \
+    do									      \
+      *__ptr++ = 0ul;							      \
+    while (--__cnt >= 0);						      \
+  } while (0)
+
+#define sigset_get_old_mask(set, mask) \
+  ((mask) = (unsigned int) (set)->__val[0])
diff --git a/sysdeps/unix/sysv/sysv4/sigset-cvt-mask.h b/sysdeps/unix/sysv/sysv4/sigset-cvt-mask.h
new file mode 100644
index 0000000000..4daab22bc5
--- /dev/null
+++ b/sysdeps/unix/sysv/sysv4/sigset-cvt-mask.h
@@ -0,0 +1,33 @@
+/* Convert between lowlevel sigmask and libc representation of sigset_t.
+   SysVr4 version.
+   Copyright (C) 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Joe Keane <jgk@jgk.org>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define sigset_set_old_mask(set, mask) \
+  do {									      \
+    unsigned long int *__ptr;						      \
+    __ptr = &(set)->__sigbits[0];					      \
+    __ptr[0] = (mask);							      \
+    __ptr[1] = 0ul;							      \
+    __ptr[2] = 0ul;							      \
+    __ptr[3] = 0ul;							      \
+  } while (0)
+
+#define sigset_get_old_mask(set, mask) \
+  ((mask) = (unsigned int) (set)->__sigbits[0])