Patch from Stefan Allius and Edie C. Dost to add SuperH

shared library support.  This also adds some cleaner error
handling, which I (Erik) then ported over to x86 and arm.
In addition Stefan added the following fixes:

- in hash.c was the lvalue handling of global library functions wrong.
   To fix this I had to change the prototype of _dl_find_hash. (==> TIS and
   ELF spec. Vers. 1.2)

- in ldso.c was the order of the .init sections calls wrong. Before we call
  the initialization code of a library we have to check that all dependend
  libraries are already initialized. This can easily made by calling it in the
  revers loading order. For this I added a previous pointer chain.

- in ldso.c the ELF magics wasn't checked fo PPC, MIPS and SH architecture

3 files changed, 35 insertions, 25 deletions

diff --git a/ldso/ldso/powerpc/boot1_arch.h b/ldso/ldso/powerpc/boot1_arch.h
index 0e2e1f055..ae7939eb2 100644
--- a/ldso/ldso/powerpc/boot1_arch.h
+++ b/ldso/ldso/powerpc/boot1_arch.h
@@ -17,5 +17,5 @@ _dl_boot:
 ");
 
 #define _dl_boot _dl_boot2
-#define DL_BOOT(X)   static void *  __attribute__ ((unused)) _dl_boot (X)
+#define LD_BOOT(X)   static void *  __attribute__ ((unused)) _dl_boot (X)
 
diff --git a/ldso/ldso/powerpc/dl-startup.h b/ldso/ldso/powerpc/dl-startup.h
index 0e2e1f055..ae7939eb2 100644
--- a/ldso/ldso/powerpc/dl-startup.h
+++ b/ldso/ldso/powerpc/dl-startup.h
@@ -17,5 +17,5 @@ _dl_boot:
 ");
 
 #define _dl_boot _dl_boot2
-#define DL_BOOT(X)   static void *  __attribute__ ((unused)) _dl_boot (X)
+#define LD_BOOT(X)   static void *  __attribute__ ((unused)) _dl_boot (X)
 
diff --git a/ldso/ldso/powerpc/elfinterp.c b/ldso/ldso/powerpc/elfinterp.c
index 5ecef1a02..4d263df2f 100644
--- a/ldso/ldso/powerpc/elfinterp.c
+++ b/ldso/ldso/powerpc/elfinterp.c
@@ -1,22 +1,32 @@
-//#define DL_DEBUG
-/* Run an ELF binary on a linux system.
+/* vi: set sw=4 ts=4: */
+/* i386 ELF shared library loader suppport
+ *
+ * Copyright (C) 2001-2002,  David A. Schleef
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. The name of the above contributors may not be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
 
-   Copyright (C) 1993, Eric Youngdale.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
-   any later version.
-
-   This program 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 General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
 #ifndef VERBOSE_DLINKER
 #define VERBOSE_DLINKER
 #endif
@@ -49,7 +59,7 @@ static const char *_dl_reltypes[] =
    working. */
 
 
-#ifdef DL_DEBUG_SYMBOLS
+#ifdef LD_DEBUG_SYMBOLS
 static void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index);
 static void debug_reloc(ELF_RELOC *rpnt);
 #define DPRINTF(fmt,args...) _dl_dprintf(2,fmt,args)
@@ -161,7 +171,7 @@ unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, int reloc_entry)
 	/* Get the address of the GOT entry */
 	targ_addr = (unsigned long) _dl_find_hash(
 		strtab + symtab[symtab_index].st_name, 
-		tpnt->symbol_scope, tpnt, 0);
+		tpnt->symbol_scope, tpnt, resolver);
 	if (!targ_addr) {
 		_dl_dprintf(2, "%s: can't resolve symbol '%s'\n", 
 			_dl_progname, strtab + symtab[symtab_index].st_name);
@@ -338,7 +348,7 @@ int _dl_parse_relocation_information(struct elf_resolve *tpnt,
 
 			symbol_addr = (unsigned long) _dl_find_hash(strtab + symtab[symtab_index].st_name, 
 					tpnt->symbol_scope,
-					(reloc_type == R_PPC_JMP_SLOT ? tpnt : NULL), 0);
+					(reloc_type == R_PPC_JMP_SLOT ? tpnt : NULL), symbolrel);
 
 			/*
 			 * We want to allow undefined references to weak symbols - this might
@@ -499,7 +509,7 @@ int _dl_parse_copy_information(struct dyn_elf *xpnt, unsigned long rel_addr,
 
 			symbol_addr = (unsigned long) _dl_find_hash(strtab + 
 				symtab[symtab_index].st_name, xpnt->next, 
-				NULL, 1);
+				NULL, copyrel);
 			if (!symbol_addr) {
 				_dl_dprintf(2, "%s: can't resolve symbol '%s'\n", 
 					_dl_progname, strtab + symtab[symtab_index].st_name);
@@ -551,7 +561,7 @@ static void fixup_jmpslot(unsigned long reloc_addr, unsigned long targ_addr)
 #endif
 
 
-#ifdef DL_DEBUG_SYMBOLS
+#ifdef LD_DEBUG_SYMBOLS
 static void debug_sym(Elf32_Sym *symtab,char *strtab,int symtab_index)
 {
 	if(symtab_index){