1#ifndef _LINUX_INIT_H
2#define _LINUX_INIT_H
3
4#include <linux/compiler.h>
5#include <linux/types.h>
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44#define __init __section(.init.text) __cold notrace
45#define __initdata __section(.init.data)
46#define __initconst __constsection(.init.rodata)
47#define __exitdata __section(.exit.data)
48#define __exit_call __used __section(.exitcall.exit)
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55#ifdef CONFIG_BROKEN_RODATA
56#define __constsection(x)
57#else
58#define __constsection(x) __section(x)
59#endif
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78#define __ref __section(.ref.text) noinline
79#define __refdata __section(.ref.data)
80#define __refconst __constsection(.ref.rodata)
81
82
83#define __init_refok __ref
84#define __initdata_refok __refdata
85#define __exit_refok __ref
86
87
88#ifdef MODULE
89#define __exitused
90#else
91#define __exitused __used
92#endif
93
94#define __exit __section(.exit.text) __exitused __cold notrace
95
96
97#define __cpuinit
98#define __cpuinitdata
99#define __cpuinitconst
100#define __cpuexit
101#define __cpuexitdata
102#define __cpuexitconst
103
104
105#define __meminit __section(.meminit.text) __cold notrace
106#define __meminitdata __section(.meminit.data)
107#define __meminitconst __constsection(.meminit.rodata)
108#define __memexit __section(.memexit.text) __exitused __cold notrace
109#define __memexitdata __section(.memexit.data)
110#define __memexitconst __constsection(.memexit.rodata)
111
112
113#define __HEAD .section ".head.text","ax"
114#define __INIT .section ".init.text","ax"
115#define __FINIT .previous
116
117#define __INITDATA .section ".init.data","aw",%progbits
118#define __INITRODATA .section ".init.rodata","a",%progbits
119#define __FINITDATA .previous
120
121
122#define __CPUINIT
123
124#define __MEMINIT .section ".meminit.text", "ax"
125#define __MEMINITDATA .section ".meminit.data", "aw"
126#define __MEMINITRODATA .section ".meminit.rodata", "a"
127
128
129#define __REF .section ".ref.text", "ax"
130#define __REFDATA .section ".ref.data", "aw"
131#define __REFCONST .section ".ref.rodata", "a"
132
133#ifndef __ASSEMBLY__
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137typedef int (*initcall_t)(void);
138typedef void (*exitcall_t)(void);
139
140extern initcall_t __con_initcall_start[], __con_initcall_end[];
141extern initcall_t __security_initcall_start[], __security_initcall_end[];
142
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144typedef void (*ctor_fn_t)(void);
145
146
147extern int do_one_initcall(initcall_t fn);
148extern char __initdata boot_command_line[];
149extern char *saved_command_line;
150extern unsigned int reset_devices;
151
152
153void setup_arch(char **);
154void prepare_namespace(void);
155void __init load_default_modules(void);
156int __init init_rootfs(void);
157
158extern void (*late_time_init)(void);
159
160extern bool initcall_debug;
161
162#endif
163
164#ifndef MODULE
165
166#ifndef __ASSEMBLY__
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178#define __define_initcall(fn, id) \
179 static initcall_t __initcall_##fn##id __used \
180 __attribute__((__section__(".initcall" #id ".init"))) = fn
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187#define early_initcall(fn) __define_initcall(fn, early)
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196#define pure_initcall(fn) __define_initcall(fn, 0)
197
198#define core_initcall(fn) __define_initcall(fn, 1)
199#define core_initcall_sync(fn) __define_initcall(fn, 1s)
200#define postcore_initcall(fn) __define_initcall(fn, 2)
201#define postcore_initcall_sync(fn) __define_initcall(fn, 2s)
202#define arch_initcall(fn) __define_initcall(fn, 3)
203#define arch_initcall_sync(fn) __define_initcall(fn, 3s)
204#define subsys_initcall(fn) __define_initcall(fn, 4)
205#define subsys_initcall_sync(fn) __define_initcall(fn, 4s)
206#define fs_initcall(fn) __define_initcall(fn, 5)
207#define fs_initcall_sync(fn) __define_initcall(fn, 5s)
208#define rootfs_initcall(fn) __define_initcall(fn, rootfs)
209#define device_initcall(fn) __define_initcall(fn, 6)
210#define device_initcall_sync(fn) __define_initcall(fn, 6s)
211#define late_initcall(fn) __define_initcall(fn, 7)
212#define late_initcall_sync(fn) __define_initcall(fn, 7s)
213
214#define __initcall(fn) device_initcall(fn)
215
216#define __exitcall(fn) \
217 static exitcall_t __exitcall_##fn __exit_call = fn
218
219#define console_initcall(fn) \
220 static initcall_t __initcall_##fn \
221 __used __section(.con_initcall.init) = fn
222
223#define security_initcall(fn) \
224 static initcall_t __initcall_##fn \
225 __used __section(.security_initcall.init) = fn
226
227struct obs_kernel_param {
228 const char *str;
229 int (*setup_func)(char *);
230 int early;
231};
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239#define __setup_param(str, unique_id, fn, early) \
240 static const char __setup_str_##unique_id[] __initconst \
241 __aligned(1) = str; \
242 static struct obs_kernel_param __setup_##unique_id \
243 __used __section(.init.setup) \
244 __attribute__((aligned((sizeof(long))))) \
245 = { __setup_str_##unique_id, fn, early }
246
247#define __setup(str, fn) \
248 __setup_param(str, fn, fn, 0)
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251
252#define early_param(str, fn) \
253 __setup_param(str, fn, fn, 1)
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256void __init parse_early_param(void);
257void __init parse_early_options(char *cmdline);
258#endif
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268#define module_init(x) __initcall(x);
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280#define module_exit(x) __exitcall(x);
281
282#else
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285#define early_initcall(fn) module_init(fn)
286#define core_initcall(fn) module_init(fn)
287#define postcore_initcall(fn) module_init(fn)
288#define arch_initcall(fn) module_init(fn)
289#define subsys_initcall(fn) module_init(fn)
290#define fs_initcall(fn) module_init(fn)
291#define device_initcall(fn) module_init(fn)
292#define late_initcall(fn) module_init(fn)
293
294#define security_initcall(fn) module_init(fn)
295
296
297#define module_init(initfn) \
298 static inline initcall_t __inittest(void) \
299 { return initfn; } \
300 int init_module(void) __attribute__((alias(#initfn)));
301
302
303#define module_exit(exitfn) \
304 static inline exitcall_t __exittest(void) \
305 { return exitfn; } \
306 void cleanup_module(void) __attribute__((alias(#exitfn)));
307
308#define __setup_param(str, unique_id, fn)
309#define __setup(str, func)
310#endif
311
312
313#define __nosavedata __section(.data..nosave)
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317#ifdef CONFIG_MODULES
318#define __init_or_module
319#define __initdata_or_module
320#define __initconst_or_module
321#define __INIT_OR_MODULE .text
322#define __INITDATA_OR_MODULE .data
323#define __INITRODATA_OR_MODULE .section ".rodata","a",%progbits
324#else
325#define __init_or_module __init
326#define __initdata_or_module __initdata
327#define __initconst_or_module __initconst
328#define __INIT_OR_MODULE __INIT
329#define __INITDATA_OR_MODULE __INITDATA
330#define __INITRODATA_OR_MODULE __INITRODATA
331#endif
332
333#ifdef MODULE
334#define __exit_p(x) x
335#else
336#define __exit_p(x) NULL
337#endif
338
339#endif
340