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authorDoug Rabson <dfr@FreeBSD.org>1997-05-07 16:05:47 +0000
committerDoug Rabson <dfr@FreeBSD.org>1997-05-07 16:05:47 +0000
commitcea6c86c11f5264ab880e5d253986982d5644dd0 (patch)
tree788e9e520dbd97d56edad7f6947bde78b036b796 /sys/sys/module.h
parent5bd588ccb09fcd818b16eee43e762dc07a95d47c (diff)
downloadsrc-cea6c86c11f5264ab880e5d253986982d5644dd0.tar.gz
src-cea6c86c11f5264ab880e5d253986982d5644dd0.zip
This is the kernel linker. To use it, you will first need to apply
the patches in freefall:/home/dfr/ld.diffs to your ld sources and set BINFORMAT to aoutkld when linking the kernel. Library changes and userland utilities will appear in a later commit.
Notes
Notes: svn path=/head/; revision=25537
Diffstat (limited to 'sys/sys/module.h')
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diff --git a/sys/sys/module.h b/sys/sys/module.h
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+/*-
+ * Copyright (c) 1997 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.
+ *
+ * $Id$
+ */
+
+#ifndef _SYS_MODULE_H_
+#define _SYS_MODULE_H_
+
+#ifdef KERNEL
+
+typedef enum {
+ MOD_LOAD,
+ MOD_UNLOAD,
+ MOD_SHUTDOWN
+} modeventtype_t;
+
+struct module;
+typedef struct module *module_t;
+
+typedef int (*modeventhand_t)(module_t mod, modeventtype_t what, void *arg);
+
+/*
+ * Struct for registering modules statically via SYSINIT.
+ */
+typedef struct moduledata {
+ char* name; /* module name */
+ modeventhand_t evhand; /* event handler */
+ void* priv; /* extra data */
+} moduledata_t;
+
+#define DECLARE_MODULE(name, data, sub, order) \
+SYSINIT(name##module, sub, order, module_register_static, &data)
+
+void module_register_static(void *data);
+int module_register(const char *name, modeventhand_t callback, void *arg);
+module_t module_lookupbyname(const char *name);
+module_t module_lookupbyid(int modid);
+void module_reference(module_t mod);
+void module_release(module_t mod);
+int module_unload(module_t mod);
+int module_getid(module_t mod);
+module_t module_getfnext(module_t mod);
+
+#ifdef MOD_DEBUG
+
+extern int mod_debug;
+#define MOD_DEBUG_REFS 1
+
+#define MOD_DPF(cat, args) \
+ do { \
+ if (mod_debug & MOD_DEBUG_##cat) printf args; \
+ } while (0)
+
+#else
+
+#define MOD_DPF(cat, args)
+
+#endif
+
+#endif /* KERNEL */
+
+#define MAXMODNAME 32
+
+struct module_stat {
+ int version; /* set to sizeof(struct module_stat) */
+ char name[MAXMODNAME];
+ int refs;
+ int id;
+};
+
+#ifndef KERNEL
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int modnext(int modid);
+int modfnext(int modid);
+int modstat(int modid, struct module_stat* stat);
+int modfind(char *name);
+__END_DECLS
+
+#endif
+
+#endif /* !_SYS_MODULE_H_ */