Re: mips64 n32 and n64 suport in elf/

[Alexandre Oliva <aoliva at redhat dot com>]

On Mar 14, 2003, Alexandre Oliva <aoliva at redhat dot com> wrote:

> 	* sysdeps/generic/ldconfig.h (FLAG_MIPS64_LIBN32,
> 	FLAG_MIPS64_LIBN64): Define.
> 	* elf/cache.c (print_entry): Handle mips64 n32 and n64.

This patch is the mips-specific part that complements the changes
above.  Ok?

Index: ChangeLog
2003-03-14  Alexandre Oliva  <aoliva at redhat dot com>

	* sysdeps/unix/sysv/linux/mips/readelflib.c: New file.

Index: sysdeps/unix/sysv/linux/mips/readelflib.c
--- /dev/null	2002-10-04 15:48:04.000000000 -0300
+++ sysdeps/unix/sysv/linux/mips/readelflib.c	2003-01-15 12:28:46.000000000 -0200
@@ -0,0 +1,71 @@
+/* Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Alexandre Oliva <aoliva at redhat dot com>
+   Based on work ../x86_64/readelflib.c,
+   contributed by Andreas Jaeger <aj at suse dot de>, 1999 and
+		  Jakub Jelinek <jakub at redhat dot com>, 1999.
+
+   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.  */
+
+
+int process_elf32_file (const char *file_name, const char *lib, int *flag,
+			unsigned int *osversion, char **soname,
+			void *file_contents, size_t file_length);
+int process_elf64_file (const char *file_name, const char *lib, int *flag,
+			unsigned int *osversion, 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,
+		  unsigned int *osversion, 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)
+    {
+      ret = process_elf32_file (file_name, lib, flag, osversion, soname,
+				file_contents, file_length);
+
+      /* n32 libraries are always libc.so.6+.  */
+      if (ret && (elf_header->e_flags & EF_MIPS_ABI2) != 0)
+	*flag = FLAG_MIPS64_LIBN32|FLAG_ELF_LIBC6;
+    }
+  else
+    {
+      ret = process_elf64_file (file_name, lib, flag, osversion, soname,
+				file_contents, file_length);
+      /* n64 libraries are always libc.so.6+.  */
+      if (!ret)
+	*flag = FLAG_MIPS64_LIBN64|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"

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                 aoliva at {redhat dot com, gcc.gnu.org}
CS PhD student at IC-Unicamp        oliva at {lsd dot ic dot unicamp dot br, gnu.org}
Free Software Evangelist                Professional serial bug killer