#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
#define __exitdata __attribute__ ((__section__(".exit.data")))
#define __exit_call __attribute_used__ __attribute__ ((__section__ (".exitcall.exit")))
-#define __sched __attribute__((__section__(".sched.text")))
-
#ifdef MODULE
#define __exit __attribute__ ((__section__(".exit.text")))
#else
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
git://git.onelab.eu / linux-2.6.git / blobdiff