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ldconfig patch for ia64


On Fri, Sep 29, 2000 at 06:38:17PM +0200, Andreas Schwab wrote:
> David Mosberger <davidm@hpl.hp.com> writes:
> 
> |> >>>>> On 29 Sep 2000 17:37:36 +0200, Jes Sorensen <jes@linuxcare.com> said:
> |> 
> |>   Jes> Ahhh thanks, I must have missed this one. I am forwarding this
> |>   Jes> one to Uli (without the change of year of copyright back to
> |>   Jes> 1999 ;-).
> |> 
> |> I ran a diff across the entire ia64 directory and found some other
> |> differences:
> 
> Here is another one, so that ldconfig can distinguish between 32bit and
> 64bit objects.
> 
> Andreas.
> 
> 2000-09-29  Andreas Schwab  <schwab@suse.de>
> 
> 	* sysdeps/unix/sysv/linux/ia64/readelflib.c: New file.
> 
> 	* elf/cache.c (print_entry): Check for FLAG_IA64_LIB64.
> 
> Index: elf/cache.c
> ===================================================================
> RCS file: /cvs/glibc/libc/elf/cache.c,v
> retrieving revision 1.5
> diff -u -a -u -r1.5 elf/cache.c
> --- elf/cache.c	2000/05/17 11:04:02	1.5
> +++ elf/cache.c	2000/08/18 09:45:45
> @@ -72,6 +72,10 @@
>      case FLAG_SPARC_LIB64:
>        fputs (",64bit", stdout);
>  #endif
> +#if defined __ia64__ || defined __i386__
> +    case FLAG_IA64_LIB64:
> +      fputs (",64bit", stdout);
> +#endif
>      case 0:
>        break;
>      default:
> Index: sysdeps/unix/sysv/linux/ia64/readelflib.c
> ===================================================================
> RCS file: readelflib.c
> diff -N sysdeps/unix/sysv/linux/ia64/readelflib.c
> --- /dev/null	Tue May  5 13:32:27 1998
> +++ sysdeps/unix/sysv/linux/ia64/readelflib.c	Fri Aug 18 02:45:49 2000
> @@ -0,0 +1,57 @@
> +/* Copyright (C) 2000 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 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.  */
> +
> +
> +int process_elf32_file (const char *file_name, const char *lib, int *flag,
> +			char **soname, void *file_contents, size_t file_length);
> +int process_elf64_file (const char *file_name, const char *lib, int *flag,
> +			char **soname, void *file_contents, size_t file_length);
> +
> +/* Returns 0 if everything is ok, != 0 in case of error.  */
> +int
> +process_elf_file (const char *file_name, const char *lib, int *flag,
> +		  char **soname, void *file_contents, size_t file_length)
> +{
> +  ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
> +  int ret;
> +
> +  if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
> +    return process_elf32_file (file_name, lib, flag, soname, file_contents,
> +				file_length);
> +  else
> +    {
> +      ret = process_elf64_file (file_name, lib, flag, soname, file_contents,
> +				 file_length);
> +      /* Intel 64bit libraries are always libc.so.6+.  */
> +      if (!ret)
> +	*flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6;
> +      return ret;
> +    }
> +}
> +
> +#undef __ELF_NATIVE_CLASS
> +#undef process_elf_file
> +#define process_elf_file process_elf32_file
> +#define __ELF_NATIVE_CLASS 32
> +#include "sysdeps/generic/readelflib.c"
> +
> +#undef __ELF_NATIVE_CLASS
> +#undef process_elf_file
> +#define process_elf_file process_elf64_file
> +#define __ELF_NATIVE_CLASS 64
> +#include "sysdeps/generic/readelflib.c"
> 

I don't like

	fputs (",64bit", stdout);

since ia64 may not be the only 64bit library together with ia32
library. Also I am not sure if

#if defined __ia64__ || defined __i386__

is really necessary. BTW, I think we need

sysdeps/unix/sysv/linux/ia64/dl-cache.h

Here is my patch.


-- 
H.J. Lu (hjl@gnu.org)
----
2000-09-29  H.J. Lu  <hjl@gnu.org>

	* sysdeps/unix/sysv/linux/ia64/dl-cache.h: New.
	* sysdeps/unix/sysv/linux/ia64/readelflib.c: Likewise.

	* elf/cache.c (print_entry): Handle FLAG_IA64_LIB64 for ia64.

Index: elf/cache.c
===================================================================
RCS file: /work/cvs/gnu/glibc/elf/cache.c,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 cache.c
--- elf/cache.c	2000/05/21 21:10:57	1.1.1.1
+++ elf/cache.c	2000/09/29 17:11:03
@@ -72,6 +72,10 @@ print_entry (const char *lib, int flag, 
     case FLAG_SPARC_LIB64:
       fputs (",64bit", stdout);
 #endif
+#ifdef __ia64__
+    case FLAG_IA64_LIB64:
+      fputs (",IA-64", stdout);
+#endif
     case 0:
       break;
     default:
--- /dev/null	Thu Aug 24 02:00:32 2000
+++ sysdeps/unix/sysv/linux/ia64/dl-cache.h	Fri Sep 29 10:06:21 2000
@@ -0,0 +1,25 @@
+/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
+   Copyright (C) 2000 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 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 _DL_CACHE_DEFAULT_ID	0x203
+
+#define _dl_cache_check_flags(flags)			\
+  ((flags) == _DL_CACHE_DEFAULT_ID)
+
+#include_next <dl-cache.h>
--- /dev/null	Thu Aug 24 02:00:32 2000
+++ sysdeps/unix/sysv/linux/ia64/readelflib.c	Fri Sep 29 10:33:05 2000
@@ -0,0 +1,62 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
+		  Jakub Jelinek <jakub@redhat.com>, 1999 and
+		  H.J. Lu <hjl@rvalinux.com>, 2000
+
+   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.  */
+
+
+int process_elf32_file (const char *file_name, const char *lib, int *flag,
+			char **soname, void *file_contents,
+			size_t file_length);
+int process_elf64_file (const char *file_name, const char *lib, int *flag,
+			char **soname, void *file_contents,
+			size_t file_length);
+
+/* Returns 0 if everything is ok, != 0 in case of error.  */
+int
+process_elf_file (const char *file_name, const char *lib, int *flag,
+		  char **soname, void *file_contents, size_t file_length)
+{
+  ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
+  int ret;
+
+  if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
+    return process_elf32_file (file_name, lib, flag, soname, file_contents,
+			       file_length);
+  else
+    {
+      ret = process_elf64_file (file_name, lib, flag, soname, file_contents,
+				file_length);
+      /* IA64 libraries are always libc.so.6+.  */
+      if (!ret)
+	*flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6;
+      return ret;
+    }
+}
+
+#undef __ELF_NATIVE_CLASS
+#undef process_elf_file
+#define process_elf_file process_elf32_file
+#define __ELF_NATIVE_CLASS 32
+#include "sysdeps/generic/readelflib.c"
+
+#undef __ELF_NATIVE_CLASS
+#undef process_elf_file
+#define process_elf_file process_elf64_file
+#define __ELF_NATIVE_CLASS 64
+#include "sysdeps/generic/readelflib.c"

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