__init/__fini handling on ELF has not been correct. It is supposed to

be a section which code stubs (branches) can be added to initialize/destructor
This adds MD stubs to allow this to operate as expected. should fix wine
and behave according to ELF specs. ok miod@

4 files changed, 48 insertions, 21 deletions

diff --git a/lib/csu/common_elf/crtbegin.c b/lib/csu/common_elf/crtbegin.c
index cb7da3b2a14..6399d6c8075 100644
--- a/lib/csu/common_elf/crtbegin.c
+++ b/lib/csu/common_elf/crtbegin.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: crtbegin.c,v 1.6 2002/02/16 21:27:20 millert Exp $	*/
+/*	$OpenBSD: crtbegin.c,v 1.7 2004/01/08 14:59:15 drahn Exp $	*/
 /*	$NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $	*/
 
 /*
@@ -41,11 +41,12 @@
  */
 #include <stdlib.h>
 
+#include "md_init.h"
 #include "os-note-elf.h"
 
-static void (*__CTOR_LIST__[1])(void)
+static const void (*__CTOR_LIST__[1])(void)
     __attribute__((section(".ctors"))) = { (void *)-1 };	/* XXX */
-static void (*__DTOR_LIST__[1])(void)
+static const void (*__DTOR_LIST__[1])(void)
     __attribute__((section(".dtors"))) = { (void *)-1 };	/* XXX */
 
 static void	__dtors(void);
@@ -55,7 +56,7 @@ static void
 __dtors()
 {
 	unsigned long i = (unsigned long) __DTOR_LIST__[0];
-	void (**p)(void);
+	void const (**p)(void);
 
 	if (i == -1)  {
 		for (i = 1; __DTOR_LIST__[i] != NULL; i++)
@@ -70,17 +71,27 @@ __dtors()
 static void
 __ctors()
 {
-	void (**p)(void) = __CTOR_LIST__ + 1;
+	void const (**p)(void) = __CTOR_LIST__ + 1;
 
 	while (*p)
 		(**p++)();
 }
 
-void __init(void) __attribute__((section(".init")));
-void __fini(void) __attribute__((section(".fini")));
+void __init(void);
+void __fini(void);
+static void __do_init(void);
+static void __do_fini(void);
+
+MD_SECTION_PROLOGUE(".init", __init);
+
+MD_SECTION_PROLOGUE(".fini", __fini);
+
+MD_SECT_CALL_FUNC(".init", __do_init);
+MD_SECT_CALL_FUNC(".fini", __do_fini);
+
 
 void
-__init()
+__do_init()
 {
 	static int initialized = 0;
 
@@ -90,18 +101,18 @@ __init()
 	 */
 	if (!initialized) {
 		initialized = 1;
-		__ctors();
-	}
+		(__ctors)();
 
-	atexit(__fini);
+		atexit(__fini);
+	}
 }
 
 void
-__fini()
+__do_fini()
 {
 	/*
 	 * Call global destructors.
 	 */
-	__dtors();
+	(__dtors)();
 }
 
diff --git a/lib/csu/common_elf/crtbeginS.c b/lib/csu/common_elf/crtbeginS.c
index da66081dae3..08ec27bb21c 100644
--- a/lib/csu/common_elf/crtbeginS.c
+++ b/lib/csu/common_elf/crtbeginS.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: crtbeginS.c,v 1.4 2003/12/28 04:11:52 drahn Exp $	*/
+/*	$OpenBSD: crtbeginS.c,v 1.5 2004/01/08 14:59:15 drahn Exp $	*/
 /*	$NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $	*/
 
 /*
@@ -41,6 +41,7 @@
 
  */
 #include <stdlib.h>
+#include "md_init.h"
 
 static void (*__CTOR_LIST__[1])(void)
     __attribute__((section(".ctors"))) = { (void *)-1 };	/* XXX */
@@ -76,9 +77,20 @@ __ctors(void)
 		(**p++)();
 	}
 }
+void _init(void);
+void _fini(void);
+static void _do_init(void);
+static void _do_fini(void);
+
+MD_SECTION_PROLOGUE(".init", _init);
+
+MD_SECTION_PROLOGUE(".fini", _fini);
+
+MD_SECT_CALL_FUNC(".init", _do_init);
+MD_SECT_CALL_FUNC(".fini", _do_fini);
 
 void
-_init(void)
+_do_init(void)
 {
 	static int initialized = 0;
 
@@ -93,7 +105,7 @@ _init(void)
 }
 
 void
-_fini(void)
+_do_fini(void)
 {
 	/*
 	 * since the _init() function sets up the destructors to be called
diff --git a/lib/csu/common_elf/crtend.c b/lib/csu/common_elf/crtend.c
index e81d17481f2..484ca3cc5d3 100644
--- a/lib/csu/common_elf/crtend.c
+++ b/lib/csu/common_elf/crtend.c
@@ -1,13 +1,13 @@
-/*	$OpenBSD: crtend.c,v 1.2 2002/02/16 21:27:20 millert Exp $	*/
+/*	$OpenBSD: crtend.c,v 1.3 2004/01/08 14:59:15 drahn Exp $	*/
 /*	$NetBSD: crtend.c,v 1.1 1996/09/12 16:59:04 cgd Exp $	*/
 
-#ifndef ECOFF_COMPAT
-
 #include <sys/cdefs.h>
+#include "md_init.h"
 
 static void (*__CTOR_LIST__[1])(void)
     __attribute__((section(".ctors"))) = { (void *)0 };		/* XXX */
 static void (*__DTOR_LIST__[1])(void)
     __attribute__((section(".dtors"))) = { (void *)0 };		/* XXX */
 
-#endif /* !ECOFF_COMPAT */
+MD_SECTION_EPILOGUE(".init");
+MD_SECTION_EPILOGUE(".fini");
diff --git a/lib/csu/common_elf/crtendS.c b/lib/csu/common_elf/crtendS.c
index 264189126e8..dd957d071fc 100644
--- a/lib/csu/common_elf/crtendS.c
+++ b/lib/csu/common_elf/crtendS.c
@@ -1,9 +1,13 @@
-/*	$OpenBSD: crtendS.c,v 1.2 2002/02/16 21:27:20 millert Exp $	*/
+/*	$OpenBSD: crtendS.c,v 1.3 2004/01/08 14:59:15 drahn Exp $	*/
 /*	$NetBSD: crtend.c,v 1.1 1997/04/16 19:38:24 thorpej Exp $	*/
 
 #include <sys/cdefs.h>
+#include "md_init.h"
 
 static void (*__CTOR_LIST__[1])(void)
     __attribute__((section(".ctors"))) = { (void *)0 };		/* XXX */
 static void (*__DTOR_LIST__[1])(void)
     __attribute__((section(".dtors"))) = { (void *)0 };		/* XXX */
+
+MD_SECTION_EPILOGUE(".init");
+MD_SECTION_EPILOGUE(".fini");