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| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-03-13 20:23:02 +0300 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-03-13 23:47:12 +0300 |
| commit | e8cd8da934f29a0aca2c4bd96310a0b6ba6e31a7 (patch) | |
| tree | b1663fe4afeaabca64b9a297078de182cb7bb2d4 /arch/xtensa | |
| parent | 3ced97305ded104e0c2814241952e261997dbb65 (diff) | |
| download | linux-e8cd8da934f29a0aca2c4bd96310a0b6ba6e31a7.tar.xz | |
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: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
| -rw-r--r-- | arch/xtensa/platforms/iss/include/platform/simcall.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/xtensa/platforms/iss/include/platform/simcall.h b/arch/xtensa/platforms/iss/include/platform/simcall.h index 27d7a528b41a..2ba45858e50a 100644 --- a/arch/xtensa/platforms/iss/include/platform/simcall.h +++ b/arch/xtensa/platforms/iss/include/platform/simcall.h @@ -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 */ |