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semihosting: Split out semihost_sys_write

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Split out the non-ARM specific portions of SYS_WRITE to a
reusable function.  This handles all GuestFD.  This removes
the last use of common_semi_syscall_len.

Note that gdb_do_syscall %x reads target_ulong, not int.

Reviewed-by: Luc Michel <lmichel@kalray.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-28 11:49:47 -07:00
parent af0484b502
commit aa915bd0a6
3 changed files with 61 additions and 51 deletions
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6
include/semihosting/syscalls.h
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@ -33,4 +33,10 @@ void semihost_sys_read(CPUState *cs, gdb_syscall_complete_cb complete,
void semihost_sys_read_gf(CPUState *cs, gdb_syscall_complete_cb complete,
GuestFD *gf, target_ulong buf, target_ulong len);
void semihost_sys_write(CPUState *cs, gdb_syscall_complete_cb complete,
int fd, target_ulong buf, target_ulong len);
void semihost_sys_write_gf(CPUState *cs, gdb_syscall_complete_cb complete,
GuestFD *gf, target_ulong buf, target_ulong len);
#endif /* SEMIHOSTING_SYSCALLS_H */