Mon Oct 9 02:54:14 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

	* Makeconfig (config-LDFLAGS): Define to
	-Wl-dynamic-linker=$(libdir)$(rtld-installed-name).
	(rtld-installed-name): New variable.
	* elf/Makefile (install-lib): Variable removed.
	(install-others): Define this instead, to
	$(libdir)(rtld-installed-name). 
	($(libdir)(rtld-installed-name)): New target; install from ld.so.

	* elf/ldd.sh.in: New file.
	* elf/Makefile (distribute): Add ldd.sh.in.
	(install-bin): Add ldd.
	($(objpfx)ldd: ldd.sh.in): New rule.

	* sysdeps/mach/hurd/dl-sysdep.c: Use __hurd_fail throughout.
	* hurd/hurd.h (__hurd_fail): Replace macro with inline function.
	Translate some Mach errors to Hurd errors.

	* elf/rtld.c (dl_main): Under --list, print msg if executable is
	statically linked.

	* elf/dl-load.c (_dl_map_object_from_fd): Rewrote program header
	table processing.

Sat Oct  7 01:25:48 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>

	* sysdeps/stub/machine-gmon.h: Add #error.

Fri Oct  6 01:49:48 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>

	* elf/dynamic-link.h (elf_get_dynamic_info): If DYN is null, don't
	examine it.

3 files changed, 50 insertions, 59 deletions

diff --git a/sysdeps/mach/hurd/dl-sysdep.c b/sysdeps/mach/hurd/dl-sysdep.c
index 8e1ef17..1038075 100644
--- a/sysdeps/mach/hurd/dl-sysdep.c
+++ b/sysdeps/mach/hurd/dl-sysdep.c
@@ -262,41 +262,38 @@ open (const char *file_name, int mode, ...)
   file_t startdir, newpt, fileport;
   int dealloc_dir;
   int nloops;
-
+  error_t err;
 
   assert (mode == O_RDONLY);
 
-
   startdir = _dl_hurd_data->portarray[file_name[0] == '/' ?
 				      INIT_PORT_CRDIR : INIT_PORT_CWDIR];
 
   while (file_name[0] == '/')
     file_name++;
 
-  if (errno = __dir_lookup (startdir, file_name, mode, 0,
-					  &doretry, retryname, &fileport))
-    return -1;
+  if (err = __dir_lookup (startdir, file_name, mode, 0,
+			  &doretry, retryname, &fileport))
+    return __hurd_fail (err);
 
   dealloc_dir = 0;
   nloops = 0;
-  errno = 0;
   
   while (1)
     {
       if (dealloc_dir)
 	__mach_port_deallocate (__mach_task_self (), startdir);
-      if (errno)
-	return -1;
+      if (err)
+	return __hurd_fail (err);
 
       switch (doretry)
 	{
 	case FS_RETRY_REAUTH:
 	  {
 	    mach_port_t ref = __mach_reply_port ();
-	    errno = __io_reauthenticate
-	      (fileport, ref, MACH_MSG_TYPE_MAKE_SEND);
-	    if (! errno)
-	      errno = __auth_user_authenticate
+	    err = __io_reauthenticate (fileport, ref, MACH_MSG_TYPE_MAKE_SEND);
+	    if (! err)
+	      err = __auth_user_authenticate
 		(_dl_hurd_data->portarray[INIT_PORT_AUTH],
 		 fileport,
 		 ref, MACH_MSG_TYPE_MAKE_SEND,
@@ -304,18 +301,15 @@ open (const char *file_name, int mode, ...)
 	    __mach_port_destroy (__mach_task_self (), ref);
 	  }
 	  __mach_port_deallocate (__mach_task_self (), fileport);
-	  if (errno)
-	    return -1;
+	  if (err)
+	    return __hurd_fail (err);
 	  fileport = newpt;
 	  /* Fall through.  */
 
 	case FS_RETRY_NORMAL:
 #ifdef SYMLOOP_MAX
 	  if (nloops++ >= SYMLOOP_MAX)
-	    {
-	      errno = ELOOP;
-	      return -1;
-	    }
+	    return __hurd_fail (ELOOP);
 #endif
 
 	  /* An empty RETRYNAME indicates we have the final port.  */
@@ -327,11 +321,11 @@ open (const char *file_name, int mode, ...)
 
 	    opened:
 	      /* We have the file open.  Now map it.  */
-	      errno = __io_map (fileport, &memobj_rd, &memobj_wr);
+	      err = __io_map (fileport, &memobj_rd, &memobj_wr);
 	      if (dealloc_dir)
 		__mach_port_deallocate (__mach_task_self (), fileport);
-	      if (errno)
-		return -1;
+	      if (err)
+		return __hurd_fail (err);
 	      if (memobj_wr != MACH_PORT_NULL)
 		__mach_port_deallocate (__mach_task_self (), memobj_wr);
 
@@ -359,26 +353,20 @@ open (const char *file_name, int mode, ...)
 		{
 		  int fd;
 		  char *end;
-		  errno = 0;
+		  err = 0;
 		  fd = (int) strtol (retryname, &end, 10);
-		  if (end == NULL || errno || /* Malformed number.  */
+		  if (end == NULL || err || /* Malformed number.  */
 		      /* Check for excess text after the number.  A slash
 			 is valid; it ends the component.  Anything else
 			 does not name a numeric file descriptor.  */
 		      (*end != '/' && *end != '\0'))
-		    {
-		      errno = ENOENT;
-		      return -1;
-		    }
+		    return __hurd_fail (ENOENT);
 		  if (fd < 0 || fd >= _dl_hurd_data->dtablesize ||
 		      _dl_hurd_data->dtable[fd] == MACH_PORT_NULL)
-		    {
-		      /* If the name was a proper number, but the file
-			 descriptor does not exist, we return EBADF instead
-			 of ENOENT.  */
-		      errno = EBADF;
-		      return -1;
-		    }
+		    /* If the name was a proper number, but the file
+		       descriptor does not exist, we return EBADF instead
+		       of ENOENT.  */
+		    return __hurd_fail (EBADF);
 		  fileport = _dl_hurd_data->dtable[fd];
 		  if (*end == '\0')
 		    {
@@ -459,13 +447,13 @@ open (const char *file_name, int mode, ...)
 		      }
 
 		  case '\0':
-		    if (errno = opentty (&fileport))
-		      return -1;
+		    if (err = opentty (&fileport))
+		      return __hurd_fail (err);
 		    dealloc_dir = 1;
 		    goto opened;
 		  case '/':
-		    if (errno = opentty (&startdir))
-		      return -1;
+		    if (err = opentty (&startdir))
+		      return __hurd_fail (err);
 		    dealloc_dir = 1;
 		    strcpy (retryname, &retryname[4]);
 		    break;
@@ -478,18 +466,16 @@ open (const char *file_name, int mode, ...)
 
 	    default:
 	    bad_magic:
-	      errno = EGRATUITOUS;
-	      return -1;
+	      return __hurd_fail (EGRATUITOUS);
 	    }
 	  break;		
 
 	default:
-	  errno = EGRATUITOUS;
-	  return -1;
+	  return __hurd_fail (EGRATUITOUS);
 	}
 
-      errno = __dir_lookup (startdir, file_name, mode, 0,
-			    &doretry, retryname, &fileport);
+      err = __dir_lookup (startdir, file_name, mode, 0,
+			  &doretry, retryname, &fileport);
     }
 }
 
@@ -504,6 +490,7 @@ close (int fd)
 caddr_t
 mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
 {
+  error_t err;
   vm_prot_t vmprot;
   vm_address_t mapaddr;
 
@@ -516,14 +503,14 @@ mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
     vmprot |= VM_PROT_EXECUTE;
 
   mapaddr = (vm_address_t) addr;
-  errno = __vm_map (__mach_task_self (),
-		    &mapaddr, (vm_size_t) len, 0 /*ELF_MACHINE_USER_ADDRESS_MASK*/,
-		    !(flags & MAP_FIXED),
-		    (mach_port_t) fd, (vm_offset_t) offset,
-		    flags & (MAP_COPY|MAP_PRIVATE),
-		    vmprot, VM_PROT_ALL,
-		    (flags & MAP_INHERIT) ? VM_INHERIT_COPY : VM_INHERIT_NONE);
-  return errno ? (caddr_t) -1 : (caddr_t) mapaddr;
+  err = __vm_map (__mach_task_self (),
+		  &mapaddr, (vm_size_t) len, 0 /*ELF_MACHINE_USER_ADDRESS_MASK*/,
+		  !(flags & MAP_FIXED),
+		  (mach_port_t) fd, (vm_offset_t) offset,
+		  flags & (MAP_COPY|MAP_PRIVATE),
+		  vmprot, VM_PROT_ALL,
+		  (flags & MAP_INHERIT) ? VM_INHERIT_COPY : VM_INHERIT_NONE);
+  return err ? (caddr_t) __hurd_fail (err) : (caddr_t) mapaddr;
 }
 
 void
diff --git a/sysdeps/stub/machine-gmon.h b/sysdeps/stub/machine-gmon.h
index a6edbc0..166faed 100644
--- a/sysdeps/stub/machine-gmon.h
+++ b/sysdeps/stub/machine-gmon.h
@@ -26,3 +26,5 @@ void mcount (u_long arg)						      \
 {									      \
   _mcount (caller return PC, my return PC);				      \
 }
+
+#error "sysdeps/MACHINE/machine-gmon.h missing"
diff --git a/sysdeps/unix/configure b/sysdeps/unix/configure
index 4fb599a..dfc1c22 100755
--- a/sysdeps/unix/configure
+++ b/sysdeps/unix/configure
@@ -65,7 +65,7 @@ for unix_function in \
   getitimer setitimer \
   getdomainname/getdomain=bsd/bsd4.4 \
   setdomainname/setdomain=bsd/bsd4.4 \
-  profil=bsd \
+  profil=bsd readv=bsd writev=bsd \
   getpriority setpriority \
   getrlimit setrlimit
 do
@@ -78,7 +78,7 @@ do
   eval "unix_syscall=`echo $unix_function | \
 		       sed -e 's@=\(.*\)$@ unix_srcdir=\1@' \
 			   -e 's@/\(.*\)$@ unix_srcname=\1@'`"
-  test -z "$unix_srcname" && unix_srcname=$unix_function
+  test -z "$unix_srcname" && unix_srcname=$unix_syscall
 
   unix_implementor=none
   for unix_dir in $sysnames; do
@@ -90,11 +90,13 @@ do
     fi
   done
 
-  # mkdir and rmdir have implementations in unix/sysv, but
-  # the simple syscall versions are preferable if available.
-  test $unix_syscall = mkdir -o $unix_syscall = rmdir && \
-  test $unix_implementor = unix/sysv && \
-    unix_implementor=generic
+  case $unix_syscall in
+  mkdir|rmdir) 
+    # mkdir and rmdir have implementations in unix/sysv, but
+    # the simple syscall versions are preferable if available.
+    test $unix_implementor = unix/sysv && unix_implementor=generic
+    ;;
+  esac
 
   case $unix_implementor in
   none|stub|generic|posix)