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