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a221247430
Split out the non-ARM specific portions of SYS_ISTTY to a reusable function. This handles all GuestFD. Add a common_semi_istty_cb helper to translate the Posix error return, 0+ENOTTY, to the Arm semihosting not-a-file success result. Reviewed-by: Luc Michel <lmichel@kalray.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/*
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* Syscall implementations for semihosting.
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*
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* Copyright (c) 2022 Linaro
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef SEMIHOSTING_SYSCALLS_H
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#define SEMIHOSTING_SYSCALLS_H
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/*
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* Argument loading from the guest is performed by the caller;
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* results are returned via the 'complete' callback.
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*
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* String operands are in address/len pairs. The len argument may be 0
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* (when the semihosting abi does not already provide the length),
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* or non-zero (where it should include the terminating zero).
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*/
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typedef struct GuestFD GuestFD;
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void semihost_sys_open(CPUState *cs, gdb_syscall_complete_cb complete,
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target_ulong fname, target_ulong fname_len,
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int gdb_flags, int mode);
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void semihost_sys_close(CPUState *cs, gdb_syscall_complete_cb complete,
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int fd);
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void semihost_sys_read(CPUState *cs, gdb_syscall_complete_cb complete,
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int fd, target_ulong buf, target_ulong len);
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void semihost_sys_read_gf(CPUState *cs, gdb_syscall_complete_cb complete,
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GuestFD *gf, target_ulong buf, target_ulong len);
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void semihost_sys_write(CPUState *cs, gdb_syscall_complete_cb complete,
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int fd, target_ulong buf, target_ulong len);
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void semihost_sys_write_gf(CPUState *cs, gdb_syscall_complete_cb complete,
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GuestFD *gf, target_ulong buf, target_ulong len);
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void semihost_sys_lseek(CPUState *cs, gdb_syscall_complete_cb complete,
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int fd, int64_t off, int gdb_whence);
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void semihost_sys_isatty(CPUState *cs, gdb_syscall_complete_cb complete,
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int fd);
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#endif /* SEMIHOSTING_SYSCALLS_H */
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