check in the original version of dde linux26.

1 files changed, 374 insertions, 0 deletions

diff --git a/libdde_linux26/include/linux/init.h b/libdde_linux26/include/linux/init.h
new file mode 100644
index 00000000..13b3d9c9
--- /dev/null
+++ b/libdde_linux26/include/linux/init.h
@@ -0,0 +1,374 @@
+#ifndef _LINUX_INIT_H
+#define _LINUX_INIT_H
+
+#ifdef DDE_LINUX
+#include <l4/dde/ddekit/initcall.h>
+#endif
+#include <linux/compiler.h>
+
+/* These macros are used to mark some functions or 
+ * initialized data (doesn't apply to uninitialized data)
+ * as `initialization' functions. The kernel can take this
+ * as hint that the function is used only during the initialization
+ * phase and free up used memory resources after
+ *
+ * Usage:
+ * For functions:
+ * 
+ * You should add __init immediately before the function name, like:
+ *
+ * static void __init initme(int x, int y)
+ * {
+ *    extern int z; z = x * y;
+ * }
+ *
+ * If the function has a prototype somewhere, you can also add
+ * __init between closing brace of the prototype and semicolon:
+ *
+ * extern int initialize_foobar_device(int, int, int) __init;
+ *
+ * For initialized data:
+ * You should insert __initdata between the variable name and equal
+ * sign followed by value, e.g.:
+ *
+ * static int init_variable __initdata = 0;
+ * static char linux_logo[] __initdata = { 0x32, 0x36, ... };
+ *
+ * Don't forget to initialize data not at file scope, i.e. within a function,
+ * as gcc otherwise puts the data into the bss section and not into the init
+ * section.
+ * 
+ * Also note, that this data cannot be "const".
+ */
+
+/* These are for everybody (although not all archs will actually
+   discard it in modules) */
+#ifndef DDE_LINUX
+#define __init		__section(.init.text) __cold notrace
+#else
+#define __init __used
+#endif
+#define __initdata	__section(.init.data)
+#define __initconst	__section(.init.rodata)
+#define __exitdata	__section(.exit.data)
+#define __exit_call	__used __section(.exitcall.exit)
+
+/* modpost check for section mismatches during the kernel build.
+ * A section mismatch happens when there are references from a
+ * code or data section to an init section (both code or data).
+ * The init sections are (for most archs) discarded by the kernel
+ * when early init has completed so all such references are potential bugs.
+ * For exit sections the same issue exists.
+ * The following markers are used for the cases where the reference to
+ * the *init / *exit section (code or data) is valid and will teach
+ * modpost not to issue a warning.
+ * The markers follow same syntax rules as __init / __initdata. */
+#define __ref            __section(.ref.text) noinline
+#define __refdata        __section(.ref.data)
+#define __refconst       __section(.ref.rodata)
+
+/* backward compatibility note
+ *  A few places hardcode the old section names:
+ *  .text.init.refok
+ *  .data.init.refok
+ *  .exit.text.refok
+ *  They should be converted to use the defines from this file
+ */
+
+/* compatibility defines */
+#define __init_refok     __ref
+#define __initdata_refok __refdata
+#define __exit_refok     __ref
+
+
+#ifdef MODULE
+#define __exitused
+#else
+#define __exitused  __used
+#endif
+
+#define __exit          __section(.exit.text) __exitused __cold
+
+/* Used for HOTPLUG */
+#define __devinit        __section(.devinit.text) __cold
+#define __devinitdata    __section(.devinit.data)
+#define __devinitconst   __section(.devinit.rodata)
+#define __devexit        __section(.devexit.text) __exitused __cold
+#define __devexitdata    __section(.devexit.data)
+#define __devexitconst   __section(.devexit.rodata)
+
+/* Used for HOTPLUG_CPU */
+#define __cpuinit        __section(.cpuinit.text) __cold
+#define __cpuinitdata    __section(.cpuinit.data)
+#define __cpuinitconst   __section(.cpuinit.rodata)
+#define __cpuexit        __section(.cpuexit.text) __exitused __cold
+#define __cpuexitdata    __section(.cpuexit.data)
+#define __cpuexitconst   __section(.cpuexit.rodata)
+
+/* Used for MEMORY_HOTPLUG */
+#define __meminit        __section(.meminit.text) __cold
+#define __meminitdata    __section(.meminit.data)
+#define __meminitconst   __section(.meminit.rodata)
+#define __memexit        __section(.memexit.text) __exitused __cold
+#define __memexitdata    __section(.memexit.data)
+#define __memexitconst   __section(.memexit.rodata)
+
+/* For assembly routines */
+#define __HEAD		.section	".head.text","ax"
+#define __INIT		.section	".init.text","ax"
+#define __FINIT		.previous
+
+#define __INITDATA	.section	".init.data","aw"
+#define __INITRODATA	.section	".init.rodata","a"
+#define __FINITDATA	.previous
+
+#define __DEVINIT        .section	".devinit.text", "ax"
+#define __DEVINITDATA    .section	".devinit.data", "aw"
+#define __DEVINITRODATA  .section	".devinit.rodata", "a"
+
+#define __CPUINIT        .section	".cpuinit.text", "ax"
+#define __CPUINITDATA    .section	".cpuinit.data", "aw"
+#define __CPUINITRODATA  .section	".cpuinit.rodata", "a"
+
+#define __MEMINIT        .section	".meminit.text", "ax"
+#define __MEMINITDATA    .section	".meminit.data", "aw"
+#define __MEMINITRODATA  .section	".meminit.rodata", "a"
+
+/* silence warnings when references are OK */
+#define __REF            .section       ".ref.text", "ax"
+#define __REFDATA        .section       ".ref.data", "aw"
+#define __REFCONST       .section       ".ref.rodata", "a"
+
+#ifndef __ASSEMBLY__
+/*
+ * Used for initialization calls..
+ */
+typedef int (*initcall_t)(void);
+typedef void (*exitcall_t)(void);
+
+extern initcall_t __con_initcall_start[], __con_initcall_end[];
+extern initcall_t __security_initcall_start[], __security_initcall_end[];
+
+/* Defined in init/main.c */
+extern int do_one_initcall(initcall_t fn);
+extern char __initdata boot_command_line[];
+extern char *saved_command_line;
+extern unsigned int reset_devices;
+
+/* used by init/main.c */
+void setup_arch(char **);
+void prepare_namespace(void);
+
+extern void (*late_time_init)(void);
+
+#endif
+  
+#ifndef MODULE
+
+#ifndef __ASSEMBLY__
+
+/* initcalls are now grouped by functionality into separate 
+ * subsections. Ordering inside the subsections is determined
+ * by link order. 
+ * For backwards compatibility, initcall() puts the call in 
+ * the device init subsection.
+ *
+ * The `id' arg to __define_initcall() is needed so that multiple initcalls
+ * can point at the same handler without causing duplicate-symbol build errors.
+ */
+
+#ifndef DDE_LINUX
+#define __define_initcall(level,fn,id) \
+	static initcall_t __initcall_##fn##id __used \
+	__attribute__((__section__(".initcall" level ".init"))) = fn
+#else // DDE_LINUX
+// XXX: DDE CTORs are executed in reverse order as was done by
+//      Linux' initcalls in earlier versions
+#include <l4/dde/ddekit/initcall.h>
+#define __define_initcall(level,fn,id) DDEKIT_CTOR(fn,level)
+#endif
+
+/*
+ * Early initcalls run before initializing SMP.
+ *
+ * Only for built-in code, not modules.
+ */
+#define early_initcall(fn)		__define_initcall("early",fn,early)
+
+/*
+ * A "pure" initcall has no dependencies on anything else, and purely
+ * initializes variables that couldn't be statically initialized.
+ *
+ * This only exists for built-in code, not for modules.
+ */
+#ifndef DDE_LINUX
+#define pure_initcall(fn)		__define_initcall("0",fn,0)
+
+#define core_initcall(fn)		__define_initcall("1",fn,1)
+#define core_initcall_sync(fn)		__define_initcall("1s",fn,1s)
+#define postcore_initcall(fn)		__define_initcall("2",fn,2)
+#define postcore_initcall_sync(fn)	__define_initcall("2s",fn,2s)
+#define arch_initcall(fn)		__define_initcall("3",fn,3)
+#define arch_initcall_sync(fn)		__define_initcall("3s",fn,3s)
+#define subsys_initcall(fn)		__define_initcall("4",fn,4)
+#define subsys_initcall_sync(fn)	__define_initcall("4s",fn,4s)
+#define fs_initcall(fn)			__define_initcall("5",fn,5)
+#define fs_initcall_sync(fn)		__define_initcall("5s",fn,5s)
+#define rootfs_initcall(fn)		__define_initcall("rootfs",fn,rootfs)
+#define device_initcall(fn)		__define_initcall("6",fn,6)
+#define device_initcall_sync(fn)	__define_initcall("6s",fn,6s)
+#define late_initcall(fn)		__define_initcall("7",fn,7)
+#define late_initcall_sync(fn)		__define_initcall("7s",fn,7s)
+#else /* DDE_LINUX */
+#define pure_initcall(fn)		__define_initcall(1000,fn,1000)
+
+//#define dde_initcall(fn)                __define_initcall(1009,fn,10)
+//#define dde_process_initcall(fn)        __define_initcall(1008,fn,10)
+#define core_initcall(fn)               __define_initcall(1000,fn,7)
+#define core_initcall_sync(fn)          __define_initcall(1007s,fn,7s)
+#define postcore_initcall(fn)           __define_initcall(1001,fn,6)
+#define postcore_initcall_sync(fn)      __define_initcall(1006s,fn,6s)
+#define arch_initcall(fn)               __define_initcall(1002,fn,5)
+#define arch_initcall_sync(fn)          __define_initcall(1005s,fn,5s)
+#define subsys_initcall(fn)             __define_initcall(1003,fn,4)
+#define subsys_initcall_sync(fn)        __define_initcall(1004s,fn,4s)
+#define fs_initcall(fn)                 __define_initcall(1004,fn,3)
+#define fs_initcall_sync(fn)            __define_initcall(1003s,fn,3s)
+//#define rootfs_initcall(fn)           __define_initcall(ootfs,fn,rootfs)
+#define device_initcall(fn)             __define_initcall(1005,fn,2)
+#define device_initcall_sync(fn)        __define_initcall(1002s,fn,2s)
+#define late_initcall(fn)               __define_initcall(1006,fn,1)
+#define late_initcall_sync(fn)          __define_initcall(1001s,fn,1s)
+#endif
+
+#define __initcall(fn) device_initcall(fn)
+
+#ifndef DDE_LINUX
+#define __exitcall(fn) \
+	static exitcall_t __exitcall_##fn __exit_call = fn
+#else
+#define __exitcall(fn)
+#endif
+
+#define console_initcall(fn) \
+	static initcall_t __initcall_##fn \
+	__used __section(.con_initcall.init) = fn
+
+#define security_initcall(fn) \
+	static initcall_t __initcall_##fn \
+	__used __section(.security_initcall.init) = fn
+
+struct obs_kernel_param {
+	const char *str;
+	int (*setup_func)(char *);
+	int early;
+};
+
+/*
+ * Only for really core code.  See moduleparam.h for the normal way.
+ *
+ * Force the alignment so the compiler doesn't space elements of the
+ * obs_kernel_param "array" too far apart in .init.setup.
+ */
+#define __setup_param(str, unique_id, fn, early)			\
+	static char __setup_str_##unique_id[] __initdata __aligned(1) = str; \
+	static struct obs_kernel_param __setup_##unique_id	\
+		__used __section(.init.setup)			\
+		__attribute__((aligned((sizeof(long)))))	\
+		= { __setup_str_##unique_id, fn, early }
+
+#define __setup(str, fn)					\
+	__setup_param(str, fn, fn, 0)
+
+/* NOTE: fn is as per module_param, not __setup!  Emits warning if fn
+ * returns non-zero. */
+#define early_param(str, fn)					\
+	__setup_param(str, fn, fn, 1)
+
+/* Relies on boot_command_line being set */
+void __init parse_early_param(void);
+#endif /* __ASSEMBLY__ */
+
+/**
+ * module_init() - driver initialization entry point
+ * @x: function to be run at kernel boot time or module insertion
+ * 
+ * module_init() will either be called during do_initcalls() (if
+ * builtin) or at module insertion time (if a module).  There can only
+ * be one per module.
+ */
+#define module_init(x)	__initcall(x);
+
+/**
+ * module_exit() - driver exit entry point
+ * @x: function to be run when driver is removed
+ * 
+ * module_exit() will wrap the driver clean-up code
+ * with cleanup_module() when used with rmmod when
+ * the driver is a module.  If the driver is statically
+ * compiled into the kernel, module_exit() has no effect.
+ * There can only be one per module.
+ */
+#define module_exit(x)	__exitcall(x);
+
+#else /* MODULE */
+
+/* Don't use these in modules, but some people do... */
+#define core_initcall(fn)		module_init(fn)
+#define postcore_initcall(fn)		module_init(fn)
+#define arch_initcall(fn)		module_init(fn)
+#define subsys_initcall(fn)		module_init(fn)
+#define fs_initcall(fn)			module_init(fn)
+#define device_initcall(fn)		module_init(fn)
+#define late_initcall(fn)		module_init(fn)
+
+#define security_initcall(fn)		module_init(fn)
+
+/* Each module must use one module_init(). */
+#define module_init(initfn)					\
+	static inline initcall_t __inittest(void)		\
+	{ return initfn; }					\
+	int init_module(void) __attribute__((alias(#initfn)));
+
+/* This is only required if you want to be unloadable. */
+#define module_exit(exitfn)					\
+	static inline exitcall_t __exittest(void)		\
+	{ return exitfn; }					\
+	void cleanup_module(void) __attribute__((alias(#exitfn)));
+
+#define __setup_param(str, unique_id, fn)	/* nothing */
+#define __setup(str, func) 			/* nothing */
+#endif
+
+/* Data marked not to be saved by software suspend */
+#define __nosavedata __section(.data.nosave)
+
+/* This means "can be init if no module support, otherwise module load
+   may call it." */
+#ifdef CONFIG_MODULES
+#define __init_or_module
+#define __initdata_or_module
+#else
+#define __init_or_module __init
+#define __initdata_or_module __initdata
+#endif /*CONFIG_MODULES*/
+
+/* Functions marked as __devexit may be discarded at kernel link time, depending
+   on config options.  Newer versions of binutils detect references from
+   retained sections to discarded sections and flag an error.  Pointers to
+   __devexit functions must use __devexit_p(function_name), the wrapper will
+   insert either the function_name or NULL, depending on the config options.
+ */
+#if defined(MODULE) || defined(CONFIG_HOTPLUG)
+#define __devexit_p(x) x
+#else
+#define __devexit_p(x) NULL
+#endif
+
+#ifdef MODULE
+#define __exit_p(x) x
+#else
+#define __exit_p(x) NULL
+#endif
+
+#endif /* _LINUX_INIT_H */