Module Name: src
Committed By: matt
Date: Mon Aug 13 02:15:36 UTC 2012
Modified Files:
src/lib/csu/common: crt0-common.c
Log Message:
Add support for init_array/fini_array (conditionalized on HAVE_INITFINI_ARRAY).
[This is needed for ARM EABI.]
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/lib/csu/common/crt0-common.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/csu/common/crt0-common.c
diff -u src/lib/csu/common/crt0-common.c:1.8 src/lib/csu/common/crt0-common.c:1.9
--- src/lib/csu/common/crt0-common.c:1.8 Thu Mar 22 22:59:43 2012
+++ src/lib/csu/common/crt0-common.c Mon Aug 13 02:15:35 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: crt0-common.c,v 1.8 2012/03/22 22:59:43 joerg Exp $ */
+/* $NetBSD: crt0-common.c,v 1.9 2012/08/13 02:15:35 matt Exp $ */
/*
* Copyright (c) 1998 Christos Zoulas
@@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
-__RCSID("$NetBSD: crt0-common.c,v 1.8 2012/03/22 22:59:43 joerg Exp $");
+__RCSID("$NetBSD: crt0-common.c,v 1.9 2012/08/13 02:15:35 matt Exp $");
#include <sys/types.h>
#include <sys/exec.h>
@@ -49,8 +49,10 @@ __RCSID("$NetBSD: crt0-common.c,v 1.8 20
extern int main(int, char **, char **);
+#ifndef HAVE_INITFINI_ARRAY
extern void _init(void);
extern void _fini(void);
+#endif
extern void _libc_init(void);
/*
@@ -85,6 +87,36 @@ do { \
_exit(1); \
} while (0)
+#ifdef HAVE_INITFINI_ARRAY
+/*
+ * If we are using INIT_ARRAY/FINI_ARRAY and we are linked statically,
+ * we have to process these instead of relying on RTLD to do it for us.
+ *
+ * Since we don't need .init or .fini sections, just code them in C
+ * to make life easier.
+ */
+static const fptr_t init_array_start[] __weak_reference(__init_array_start);
+static const fptr_t init_array_end[] __weak_reference(__init_array_end);
+static const fptr_t fini_array_start[] __weak_reference(__fini_array_start);
+static const fptr_t fini_array_end[] __weak_reference(__fini_array_end);
+
+static inline void
+_init(void)
+{
+ for (const fptr_t *f = init_array_start; f < init_array_end; f++) {
+ (*f)();
+ }
+}
+
+static void
+_fini(void)
+{
+ for (const fptr_t *f = fini_array_start; f < fini_array_end; f++) {
+ (*f)();
+ }
+}
+#endif /* HAVE_INITFINI_ARRAY */
+
void
___start(void (*cleanup)(void), /* from shared loader */
const Obj_Entry *obj, /* from shared loader */
