/* * SPDX-License-Identifier: BSD-3-Clause * * Copyright © 2019 Keith Packard * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * 3. Neither the name of the copyright holder nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include #include #define SYS_CLOCK (0x10) #define SYS_CLOSE (0x02) #define SYS_ELAPSED (0x30) #define SYS_ERRNO (0x13) #define SYS_EXIT (0x18) #define SYS_EXIT_EXTENDED (0x20) #define SYS_FLEN (0x0C) #define SYS_GET_CMDLINE (0x15) #define SYS_HEAPINFO (0x16) #define SYS_ISERROR (0x08) #define SYS_ISTTY (0x09) #define SYS_OPEN (0x01) #define SYS_READ (0x06) #define SYS_READC (0x07) #define SYS_REMOVE (0x0E) #define SYS_RENAME (0x0F) #define SYS_SEEK (0x0A) #define SYS_SYSTEM (0x12) #define SYS_TICKFREQ (0x31) #define SYS_TIME (0x11) #define SYS_TMPNAM (0x0D) #define SYS_WRITE (0x05) #define SYS_WRITEC (0x03) #define SYS_WRITE0 (0x04) #define SHFB_MAGIC_0 0x53 #define SHFB_MAGIC_1 0x48 #define SHFB_MAGIC_2 0x46 #define SHFB_MAGIC_3 0x42 #ifdef __aarch64__ typedef unsigned long long int sh_param_t; #else typedef uintptr_t sh_param_t; #endif uintptr_t sys_semihost(uintptr_t op, uintptr_t param); /* Helper functions to simplify semihosting calls with indirect arguments. */ static inline uintptr_t sys_semihost1(long op, sh_param_t arg1) { struct { sh_param_t field1; } indirect_args = { .field1 = arg1, }; return sys_semihost(op, (uintptr_t)&indirect_args); } static inline uintptr_t sys_semihost2(long op, sh_param_t arg1, sh_param_t arg2) { struct { sh_param_t field1; sh_param_t field2; } indirect_args = { .field1 = arg1, .field2 = arg2, }; return sys_semihost(op, (uintptr_t)&indirect_args); } static inline uintptr_t sys_semihost3(long op, sh_param_t arg1, sh_param_t arg2, sh_param_t arg3) { struct { sh_param_t field1; sh_param_t field2; sh_param_t field3; } indirect_args = { .field1 = arg1, .field2 = arg2, .field3 = arg3, }; return sys_semihost(op, (uintptr_t)&indirect_args); } int _map_stdio(int fd);