We want to keep all OS-dependent code in once place, with a simple interface to U-Boot. For now, this is that place. Signed-off-by: Simon Glass <sjg@chromium.org>master
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/*
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* Copyright (c) 2011 The Chromium OS Authors. |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (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, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <fcntl.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <os.h> |
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/* Operating System Interface */ |
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ssize_t os_read(int fd, void *buf, size_t count) |
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{ |
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return read(fd, buf, count); |
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} |
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ssize_t os_write(int fd, const void *buf, size_t count) |
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{ |
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return write(fd, buf, count); |
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} |
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int os_open(const char *pathname, int flags) |
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{ |
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return open(pathname, flags); |
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} |
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int os_close(int fd) |
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{ |
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return close(fd); |
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} |
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void os_exit(int exit_code) |
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{ |
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exit(exit_code); |
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} |
@ -0,0 +1,73 @@ |
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/*
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* Copyright (c) 2011 The Chromium OS Authors. |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (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, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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|
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/*
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* Operating System Interface |
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* |
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* This provides access to useful OS routines from the sandbox architecture |
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*/ |
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/**
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* Access to the OS read() system call |
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* |
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* \param fd File descriptor as returned by os_open() |
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* \param buf Buffer to place data |
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* \param count Number of bytes to read |
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* \return number of bytes read, or -1 on error |
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*/ |
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ssize_t os_read(int fd, void *buf, size_t count); |
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|
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/**
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* Access to the OS write() system call |
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* |
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* \param fd File descriptor as returned by os_open() |
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* \param buf Buffer containing data to write |
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* \param count Number of bytes to write |
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* \return number of bytes written, or -1 on error |
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*/ |
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ssize_t os_write(int fd, const void *buf, size_t count); |
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/**
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* Access to the OS open() system call |
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* |
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* \param pathname Pathname of file to open |
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* \param flags Flags, like O_RDONLY, O_RDWR |
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* \return file descriptor, or -1 on error |
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*/ |
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int os_open(const char *pathname, int flags); |
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/**
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* Access to the OS close() system call |
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* |
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* \param fd File descriptor to close |
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* \return 0 on success, -1 on error |
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*/ |
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int os_close(int fd); |
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/**
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* Access to the OS exit() system call |
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* |
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* This exits with the supplied return code, which should be 0 to indicate |
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* success. |
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* |
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* @param exit_code exit code for U-Boot |
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*/ |
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void os_exit(int exit_code); |
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