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/*
* This file is part of the Black Magic Debug project.
*
* Copyright (C) 2022 Black Sphere Technologies Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TARGET_SEMIHOSTING_H
#define TARGET_SEMIHOSTING_H
/* Semihosting support */
/*
* If the target wants to read the special filename ":semihosting-features"
* to know what semihosting features are supported, it's easiest to create
* that file on the host in the directory where gdb runs,
* or, if using pc-hosted, where blackmagic_hosted runs.
*
* $ echo -e 'SHFB\x03' > ":semihosting-features"
* $ chmod 0444 ":semihosting-features"
*/
/* ARM Semihosting syscall numbers, from "Semihosting for AArch32 and AArch64 Version 3.0" */
#define SEMIHOSTING_SYS_CLOCK 0x10U
#define SEMIHOSTING_SYS_CLOSE 0x02U
#define SEMIHOSTING_SYS_ELAPSED 0x30U
#define SEMIHOSTING_SYS_ERRNO 0x13U
#define SEMIHOSTING_SYS_EXIT 0x18U
#define SEMIHOSTING_SYS_EXIT_EXTENDED 0x20U
#define SEMIHOSTING_SYS_FLEN 0x0cU
#define SEMIHOSTING_SYS_GET_CMDLINE 0x15U
#define SEMIHOSTING_SYS_HEAPINFO 0x16U
#define SEMIHOSTING_SYS_ISERROR 0x08U
#define SEMIHOSTING_SYS_ISTTY 0x09U
#define SEMIHOSTING_SYS_OPEN 0x01U
#define SEMIHOSTING_SYS_READ 0x06U
#define SEMIHOSTING_SYS_READC 0x07U
#define SEMIHOSTING_SYS_REMOVE 0x0eU
#define SEMIHOSTING_SYS_RENAME 0x0fU
#define SEMIHOSTING_SYS_SEEK 0x0aU
#define SEMIHOSTING_SYS_SYSTEM 0x12U
#define SEMIHOSTING_SYS_TICKFREQ 0x31U
#define SEMIHOSTING_SYS_TIME 0x11U
#define SEMIHOSTING_SYS_TMPNAM 0x0dU
#define SEMIHOSTING_SYS_WRITE 0x05U
#define SEMIHOSTING_SYS_WRITEC 0x03U
#define SEMIHOSTING_SYS_WRITE0 0x04U
#endif /* TARGET_SEMIHOSTING_H */