semihosting: Move GET_ARG/SET_ARG earlier in the file

Moving this to be useful for another function
besides do_common_semihosting.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-28 11:40:14 -07:00
parent 189878ae23
commit 3753b00e57

View file

@ -181,6 +181,30 @@ static LayoutInfo common_semi_find_bases(CPUState *cs)
#include "common-semi-target.h"
/*
* Read the input value from the argument block; fail the semihosting
* call if the memory read fails. Eventually we could use a generic
* CPUState helper function here.
*/
#define GET_ARG(n) do { \
if (is_64bit_semihosting(env)) { \
if (get_user_u64(arg ## n, args + (n) * 8)) { \
goto do_fault; \
} \
} else { \
if (get_user_u32(arg ## n, args + (n) * 4)) { \
goto do_fault; \
} \
} \
} while (0)
#define SET_ARG(n, val) \
(is_64bit_semihosting(env) ? \
put_user_u64(val, args + (n) * 8) : \
put_user_u32(val, args + (n) * 4))
/*
* The semihosting API has no concept of its errno being thread-safe,
* as the API design predates SMP CPUs and was intended as a simple
@ -507,30 +531,6 @@ static const GuestFDFunctions guestfd_fns[] = {
},
};
/*
* Read the input value from the argument block; fail the semihosting
* call if the memory read fails. Eventually we could use a generic
* CPUState helper function here.
*/
#define GET_ARG(n) do { \
if (is_64bit_semihosting(env)) { \
if (get_user_u64(arg ## n, args + (n) * 8)) { \
goto do_fault; \
} \
} else { \
if (get_user_u32(arg ## n, args + (n) * 4)) { \
goto do_fault; \
} \
} \
} while (0)
#define SET_ARG(n, val) \
(is_64bit_semihosting(env) ? \
put_user_u64(val, args + (n) * 8) : \
put_user_u32(val, args + (n) * 4))
/*
* Do a semihosting call.
*