multiformat exec framework

1 files changed, 98 insertions, 0 deletions

diff --git a/sys/lib/libsa/exec.h b/sys/lib/libsa/exec.h
new file mode 100644
index 00000000000..36abf1611e0
--- /dev/null
+++ b/sys/lib/libsa/exec.h
@@ -0,0 +1,98 @@
+/*	$OpenBSD: exec.h,v 1.1 1998/07/14 03:29:08 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1998 Michael Shalayeff
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Michael Shalayeff.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+#ifndef _SA_EXEC_H_
+#define _SA_EXEC_H_
+
+#define	MAX_EXEC_NAME	8
+
+#ifdef	EXEC_AOUT
+#include <sys/exec_aout.h>
+#endif
+#ifdef	EXEC_ECOFF
+#include <sys/exec_ecoff.h>
+#endif
+#ifdef	EXEC_ELF
+#include <sys/exec_elf.h>
+#endif
+#ifdef	EXEC_SOM
+#include <sys/exec_som.h>
+#endif
+
+union x_header {
+#ifdef	EXEC_AOUT
+	struct exec		x_aout;
+#endif
+#ifdef	EXEC_ECOFF
+	struct ecoff_filehdr	x_ecoff;
+#endif
+#ifdef	EXEC_ELF
+	struct elfhdr		x_elf;
+#endif
+#ifdef	EXEC_SOM
+	struct som_filehdr	x_som;
+#endif
+};
+
+struct x_param;
+struct x_sw {
+	char name[MAX_EXEC_NAME];
+	/* returns file position to lseek to */
+	int (*probe) __P((int, union x_header *));
+	/* zero on success */
+	int (*load) __P((int, struct x_param *));
+};
+
+struct x_param {
+	union x_header *xp_hdr;
+	const struct x_sw *xp_execsw;
+	u_int xp_entry, xp_end;
+
+	struct { u_int addr, size, foff; } text, data, bss, sym, str;
+};
+
+extern const struct x_sw execsw[];
+void machdep_exec __P((struct x_param *, int, void *));
+
+int aout_probe __P((int, union x_header *));
+int aout_load __P((int, struct x_param *));
+
+int elf_probe __P((int, union x_header *));
+int elf_load __P((int, struct x_param *));
+
+int ecoff_probe __P((int, union x_header *));
+int ecoff_load __P((int, struct x_param *));
+
+int som_probe __P((int, union x_header *));
+int som_load __P((int, struct x_param *));
+
+#endif /* _SA_EXEC_H_ */