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authorpeter <peter@FreeBSD.org>2002-07-20 02:56:12 +0000
committerpeter <peter@FreeBSD.org>2002-07-20 02:56:12 +0000
commitcc7b2e42482d2eb35468c5dd11903248b12692b2 (patch)
tree442882c197085f1177ad99039e6387b24c60e44a /sys/kern/imgact_elf64.c
parentc458732bcf221adf5c81f68d8d9044444c901a54 (diff)
downloadFreeBSD-src-cc7b2e42482d2eb35468c5dd11903248b12692b2.zip
FreeBSD-src-cc7b2e42482d2eb35468c5dd11903248b12692b2.tar.gz
Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
handler in the kernel at the same time. Also, allow for the exec_new_vmspace() code to build a different sized vmspace depending on the executable environment. This is a big help for execing i386 binaries on ia64. The ELF exec code grows the ability to map partial pages when there is a page size difference, eg: emulating 4K pages on 8K or 16K hardware pages. Flesh out the i386 emulation support for ia64. At this point, the only binary that I know of that fails is cvsup, because the cvsup runtime tries to execute code in pages not marked executable. Obtained from: dfr (mostly, many tweaks from me).
Diffstat (limited to 'sys/kern/imgact_elf64.c')
-rw-r--r--sys/kern/imgact_elf64.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/sys/kern/imgact_elf64.c b/sys/kern/imgact_elf64.c
new file mode 100644
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+++ b/sys/kern/imgact_elf64.c
@@ -0,0 +1,38 @@
+/*-
+ * Copyright (c) 2002 Doug Rabson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * There ought to be a better way of deciding this.
+ */
+#if defined(__alpha__) || defined(__ia64__) || defined(__sparc64__)
+
+#define __ELF_WORD_SIZE 64
+
+#include <kern/imgact_elf.c>
+
+#endif
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