exitcall infrastructure is based on initcall infrastructure. It allows to have and use exit call hooks on barebox shutdown. Signed-off-by: Herve Codina <Herve.CODINA@celad.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
#ifndef _INIT_H
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#define _INIT_H
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/*
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* fake define to simplify the linux sync
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*/
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#define __init
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#define __initdata
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#define __initconst
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#define __exit
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#define __exitdata
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/* For assembly routines */
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#define __BARE_INIT .section ".text_bare_init.text","ax"
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#ifndef __ASSEMBLY__
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typedef int (*initcall_t)(void);
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typedef void (*exitcall_t)(void);
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#define __define_initcall(level,fn,id) \
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static initcall_t __initcall_##fn##id __attribute__((__used__)) \
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__attribute__((__section__(".initcall." level))) = fn
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#define __define_exitcall(level,fn,id) \
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static exitcall_t __exitcall_##fn##id __attribute__((__used__)) \
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__attribute__((__section__(".exitcall." level))) = fn
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/*
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* A "pure" initcall has no dependencies on anything else, and purely
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* initializes variables that couldn't be statically initialized.
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*
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* This only exists for built-in code, not for modules.
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*/
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#define pure_initcall(fn) __define_initcall("0",fn,0)
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#define core_initcall(fn) __define_initcall("1",fn,1)
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#define postcore_initcall(fn) __define_initcall("2",fn,2)
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#define console_initcall(fn) __define_initcall("3",fn,3)
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#define postconsole_initcall(fn) __define_initcall("4",fn,4)
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#define mem_initcall(fn) __define_initcall("5",fn,5)
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#define mmu_initcall(fn) __define_initcall("6",fn,6)
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#define postmmu_initcall(fn) __define_initcall("7",fn,7)
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#define coredevice_initcall(fn) __define_initcall("8",fn,8)
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#define fs_initcall(fn) __define_initcall("9",fn,9)
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#define device_initcall(fn) __define_initcall("10",fn,10)
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#define crypto_initcall(fn) __define_initcall("11",fn,11)
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#define late_initcall(fn) __define_initcall("12",fn,12)
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#define environment_initcall(fn) __define_initcall("13",fn,13)
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#define postenvironment_initcall(fn) __define_initcall("14",fn,14)
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#define early_exitcall(fn) __define_exitcall("0",fn,0)
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#define predevshutdown_exitcall(fn) __define_exitcall("1",fn,1)
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#define devshutdown_exitcall(fn) __define_exitcall("2",fn,2)
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#define postdevshutdown_exitcall(fn) __define_exitcall("3",fn,3)
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#define prearchshutdown_exitcall(fn) __define_exitcall("4",fn,4)
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#define archshutdown_exitcall(fn) __define_exitcall("5",fn,5)
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#define postarchshutdown_exitcall(fn) __define_exitcall("6",fn,6)
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/* section for code used very early when
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* - we're not running from where we linked at
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* - bss not cleared
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* - static variables not initialized
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*
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* Mainly useful for booting from NAND Controllers
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*/
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#define __bare_init __section(.text_bare_init.text)
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#endif
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#endif /* _INIT_H */
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