#ifndef _LINUX_INIT_H
#define _LINUX_INIT_H
-#include <linux/config.h>
#include <linux/compiler.h>
/* These macros are used to mark some functions or
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;
+extern initcall_t __con_initcall_start[], __con_initcall_end[];
+extern initcall_t __security_initcall_start[], __security_initcall_end[];
+
+/* Defined in init/main.c */
+extern char saved_command_line[];
+extern unsigned int reset_devices;
+
+/* used by init/main.c */
+extern void setup_arch(char **);
+
#endif
#ifndef MODULE
* 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.
*/
-#define __define_initcall(level,fn) \
- static initcall_t __initcall_##fn __attribute_used__ \
+#define __define_initcall(level,fn,id) \
+ static initcall_t __initcall_##fn##id __attribute_used__ \
__attribute__((__section__(".initcall" level ".init"))) = fn
-#define core_initcall(fn) __define_initcall("1",fn)
-#define postcore_initcall(fn) __define_initcall("2",fn)
-#define arch_initcall(fn) __define_initcall("3",fn)
-#define subsys_initcall(fn) __define_initcall("4",fn)
-#define fs_initcall(fn) __define_initcall("5",fn)
-#define device_initcall(fn) __define_initcall("6",fn)
-#define late_initcall(fn) __define_initcall("7",fn)
+/*
+ * 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.
+ */
+#define pure_initcall(fn) __define_initcall("0",fn,1)
+
+#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)
#define __initcall(fn) device_initcall(fn)
struct obs_kernel_param {
const char *str;
int (*setup_func)(char *);
+ int early;
};
-/* OBSOLETE: see moduleparam.h for the right way. */
-#define __setup_param(str, unique_id, fn) \
+/*
+ * 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 = str; \
static struct obs_kernel_param __setup_##unique_id \
- __attribute_used__ \
- __attribute__((__section__(".init.setup"))) \
- = { __setup_str_##unique_id, fn }
+ __attribute_used__ \
+ __attribute__((__section__(".init.setup"))) \
+ __attribute__((aligned((sizeof(long))))) \
+ = { __setup_str_##unique_id, fn, early }
#define __setup_null_param(str, unique_id) \
- __setup_param(str, unique_id, NULL)
+ __setup_param(str, unique_id, NULL, 0)
#define __setup(str, fn) \
- __setup_param(str, fn, fn)
+ __setup_param(str, fn, fn, 0)
#define __obsolete_setup(str) \
__setup_null_param(str, __LINE__)
+/* 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 saved_command_line being set */
+void __init parse_early_param(void);
#endif /* __ASSEMBLY__ */
/**
#define __devexitdata __exitdata
#endif
+#ifdef CONFIG_HOTPLUG_CPU
+#define __cpuinit
+#define __cpuinitdata
+#define __cpuexit
+#define __cpuexitdata
+#else
+#define __cpuinit __init
+#define __cpuinitdata __initdata
+#define __cpuexit __exit
+#define __cpuexitdata __exitdata
+#endif
+
+#if defined(CONFIG_MEMORY_HOTPLUG) || defined(CONFIG_ACPI_HOTPLUG_MEMORY) \
+ || defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)
+#define __meminit
+#define __meminitdata
+#define __memexit
+#define __memexitdata
+#else
+#define __meminit __init
+#define __meminitdata __initdata
+#define __memexit __exit
+#define __memexitdata __exitdata
+#endif
+
/* 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