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Commit e8cd8da9 authored by Max Filippov's avatar Max Filippov
Browse files

xtensa: ISS: add argc/argv simcall definitions 



There are three simcalls implemented by ISS and QEMU related to
argc/argv processing: SYS_iss_argc (get number of command line
arguments), SYS_iss_argv_size (get size of command line argument block)
and SYS_iss_set_argv (copy command line arguments to virtual guest
address).
Add definitions for these calls to iss/include/platform/simcall.h

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 3ced9730

arch/xtensa/platforms/iss/include/platform/simcall.h

+20 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
 * for more details.

 *

 * Copyright (C) 2001 Tensilica Inc.

 * Copyright (C) 2017 Cadence Design Systems Inc.

 */



#ifndef _XTENSA_PLATFORM_ISS_SIMCALL_H
@@ -49,6 +50,10 @@ 
#define SYS_bind        30

#define SYS_ioctl	31



#define SYS_iss_argc	1000	/* returns value of argc */

#define SYS_iss_argv_size 1001	/* bytes needed for argv & arg strings */

#define SYS_iss_set_argv 1002	/* saves argv & arg strings at given addr */



/*

 * SYS_select_one specifiers

 */
@@ -118,5 +123,20 @@ static inline int simc_lseek(int fd, uint32_t off, int whence) 
	return __simc(SYS_lseek, fd, off, whence);

}



static inline int simc_argc(void)

{

	return __simc(SYS_iss_argc, 0, 0, 0);

}



static inline int simc_argv_size(void)

{

	return __simc(SYS_iss_argv_size, 0, 0, 0);

}



static inline void simc_argv(void *buf)

{

	__simc(SYS_iss_set_argv, (int)buf, 0, 0);

}



#endif /* _XTENSA_PLATFORM_ISS_SIMCALL_H */