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Add a work-around for an SH5 binutils bug which results in bogus

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GOT offsets in the PIC-compiled crt0 of statically linked binaries.
This commit is contained in:
scw 2003-04-01 10:20:38 +00:00
parent 594e5ccb92
commit aa018ec72e
1 changed files with 25 additions and 2 deletions
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27
lib/csu/sh5/crt0.c
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@ -1,4 +1,4 @@
/* $NetBSD: crt0.c,v 1.3 2002/12/06 17:06:06 scw Exp $ */
/* $NetBSD: crt0.c,v 1.4 2003/04/01 10:20:38 scw Exp $ */
/*
* Copyright 2002 Wasabi Systems, Inc.
@ -44,6 +44,29 @@
void __start(int argc, char **argv, char **envp, void (*cleanup)(void),
const Obj_Entry *obj, struct ps_strings *ps_strings);
/*
* The SuperH SH5 linker has a bug which causes statically linked binaries
* to SEGV in crt0.o due to bogus SHmedia GOT offsets. (crt0.o is always
* compiled PIC).
*
* The following gross hack works around it for now (at the expense of
* a few more runtime relocations in dynamically linked binaries).
*/
static int (*hack_atexit)(void (*)(void)) = atexit;
#define atexit hack_atexit
static void (*hack__init)(void) = _init;
#define _init hack__init
static void (*hack__fini)(void) = _fini;
#define _fini hack__fini
static void (*hack_exit)(int) = exit;
#define exit hack_exit
static int (*hack_main)(int, char **, char **) = main;
#define main hack_main
#ifdef MCRT0
static void (*hack_monstartup)(u_long, u_long) = monstartup;
#define monstartup hack_monstartup
#endif
void
__start(int argc, char **argv, char **envp, void (*cleanup)(void),
const Obj_Entry *obj, struct ps_strings *ps_strings)
@ -84,7 +107,7 @@ __start(int argc, char **argv, char **envp, void (*cleanup)(void),
* NOTE: Leave the RCS ID _after_ _start(), in case it gets placed in .text.
*/
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: crt0.c,v 1.3 2002/12/06 17:06:06 scw Exp $");
__RCSID("$NetBSD: crt0.c,v 1.4 2003/04/01 10:20:38 scw Exp $");
#endif /* LIBC_SCCS and not lint */
#include "common.c"