gcc -mbaserel

[Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>]

Thomas Schulze wrote me that he gets a "relocation out of range for
(static symbol) in _strerror.o". This is a design bug in
-mbaserel. The problem is this line in strerror.c:

		return(_sock_errlist[errnum - MINSOCKERR]);

It is compiled into (with -m68030):

	lea a4@(__sock_errlist-1200:w),a0
	movel a0@(d1:l:4),d0

But if __sock_errlist is allocated in the data segment less than 1200
bytes from the beginning, the offset is too big to be represented as a
signed short. Remember, a4 points to 32k bytes from the start of data.

A fix for this is to make _sock_errlist[] a const array, so that it is
allocated in the text segment:

--- orig/strerror.c	Wed Nov  3 18:45:02 1993
+++ strerror.c	Fri Nov  5 20:35:32 1993
@@ -118,7 +118,7 @@
 
 /* Support for Kay Roemer's socket library */
 
-char *_sock_errlist[] = {
+char *const _sock_errlist[] = {
 	"Socket operation on non-socket",		/* 300 */
 	"Destination address required",
 	"Message too long",