A symbol mangeling hack to make chrunch work with MIPS. This is a quick and

dirty fix in the light of no time to make a more correct one. What really
should be done here is to wrap the symbols with the object file name but
that requires the symbol string table to be resized and rewritten.
The fix only affect MIPS. (__mips__ protected).

1 files changed, 32 insertions, 3 deletions

diff --git a/distrib/crunch/crunchide/elf_hide.c b/distrib/crunch/crunchide/elf_hide.c
index b23e31f5fe3..5bb9f0ae70e 100644
--- a/distrib/crunch/crunchide/elf_hide.c
+++ b/distrib/crunch/crunchide/elf_hide.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: elf_hide.c,v 1.3 1997/05/06 17:08:29 niklas Exp $ */
+/*	$OpenBSD: elf_hide.c,v 1.4 1997/05/19 09:24:39 pefo Exp $ */
 
 /*
  * Copyright (c) 1997 Dale Rahn. All rights reserved.
@@ -312,6 +312,12 @@ hide_sym(Elf32_Ehdr *ehdr, Elf32_Shdr *symsect,
 	unsigned char info;
 	Elf32_Sym *psymtab;
 
+#ifdef __mips__
+	int f;
+	sleep(1);
+	f = time(NULL) * 200;
+#endif
+
 	for (i = 0 ; i < (symtabsize/sizeof(Elf32_Sym)); i++) {
 		psymtab = &(symtab[i]);
 		if ((psymtab->st_info & 0xf0) == 0x10 &&
@@ -325,16 +331,39 @@ hide_sym(Elf32_Ehdr *ehdr, Elf32_Shdr *symsect,
 				get_str(psymtab->st_name));
 			printf("st_info %x\n", psymtab->st_info);
 #endif
+#ifndef __mips__
 			info = psymtab->st_info;
 			info = info & 0xf;
 			psymtab->st_info = info;
+#else
+/* XXX This is a small ugly hack to be able to use chrunchide with MIPS.     */
+/* XXX Because MIPS needs global symbols to stay global (has to do with GOT) */
+/* XXX we mess around with the symbol names instead. For most uses this      */
+/* XXX will be no problem, symbols are stripped anyway. However, if many     */
+/* XXX one character symbols exist, names may clash.                         */
+			{
+				char *p;
+				int n, z;
+
+				z = f++;
+				p = get_str(psymtab->st_name);
+				n = strlen(p);
+				if(n > 4)
+					n = 4;
+				while(n--) {
+					p[n] = z;
+					z >>= 8;
+					while(p[n] == 0)
+						p[n] += rand();
+				}
+			}
+
+#endif
 #ifdef DEBUG
 			printf("st_info %x\n", psymtab->st_info);
 #endif
 		}
 	}
-#ifdef DEBUG
-#endif
 	reorder_syms(ehdr, symsect, symtab, symtabsize, symtabsecnum);
 }
 void