mirror of
https://github.com/torvalds/linux
synced 2024-09-22 03:55:39 +00:00
30d8caf7c6
zImage will set /chosen/bootargs (if it is otherwise empty) with the contents of a buffer in the section "__builtin_cmdline". This permits tools to edit zImage binaries to set the command-line eventually processed by vmlinux. -- Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
42 lines
990 B
C
42 lines
990 B
C
#ifndef _PPC_BOOT_PROM_H_
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#define _PPC_BOOT_PROM_H_
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typedef void *phandle;
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typedef void *ihandle;
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extern int (*prom) (void *);
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extern phandle chosen_handle;
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extern ihandle stdout;
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int call_prom(const char *service, int nargs, int nret, ...);
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int call_prom_ret(const char *service, int nargs, int nret,
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unsigned int *rets, ...);
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extern int write(void *handle, void *ptr, int nb);
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extern void *claim(unsigned long virt, unsigned long size, unsigned long aln);
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static inline void exit(void)
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{
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call_prom("exit", 0, 0);
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}
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static inline phandle finddevice(const char *name)
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{
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return (phandle) call_prom("finddevice", 1, 1, name);
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}
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static inline int getprop(void *phandle, const char *name,
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void *buf, int buflen)
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{
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return call_prom("getprop", 4, 1, phandle, name, buf, buflen);
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}
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static inline int setprop(void *phandle, const char *name,
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void *buf, int buflen)
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{
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return call_prom("setprop", 4, 1, phandle, name, buf, buflen);
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}
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#endif /* _PPC_BOOT_PROM_H_ */
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