Commit 7a9219c1 authored by Simon Glass's avatar Simon Glass Committed by Wolfgang Denk
Browse files

sandbox: Add OS dependent layer



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: default avatarSimon Glass <sjg@chromium.org>
parent 8edf844f
......@@ -23,11 +23,14 @@
# MA 02111-1307 USA
#
# os.c is build in the system environment, so needs standard includes
CPPFLAGS_arch/sandbox/cpu/os.o += -I/usr/include
include $(TOPDIR)/config.mk
LIB = $(obj)lib$(CPU).o
COBJS := cpu.o
COBJS := cpu.o os.o
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
......
......@@ -20,15 +20,14 @@
*/
#include <common.h>
#include <os.h>
DECLARE_GLOBAL_DATA_PTR;
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
/*
* This is considered normal termination for now. We wil call os_exit()
* when available.
*/
/* This is considered normal termination for now */
os_exit(0);
return 0;
}
......
/*
* Copyright (c) 2011 The Chromium OS Authors.
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <os.h>
/* Operating System Interface */
ssize_t os_read(int fd, void *buf, size_t count)
{
return read(fd, buf, count);
}
ssize_t os_write(int fd, const void *buf, size_t count)
{
return write(fd, buf, count);
}
int os_open(const char *pathname, int flags)
{
return open(pathname, flags);
}
int os_close(int fd)
{
return close(fd);
}
void os_exit(int exit_code)
{
exit(exit_code);
}
/*
* Copyright (c) 2011 The Chromium OS Authors.
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Operating System Interface
*
* This provides access to useful OS routines from the sandbox architecture
*/
/**
* Access to the OS read() system call
*
* \param fd File descriptor as returned by os_open()
* \param buf Buffer to place data
* \param count Number of bytes to read
* \return number of bytes read, or -1 on error
*/
ssize_t os_read(int fd, void *buf, size_t count);
/**
* Access to the OS write() system call
*
* \param fd File descriptor as returned by os_open()
* \param buf Buffer containing data to write
* \param count Number of bytes to write
* \return number of bytes written, or -1 on error
*/
ssize_t os_write(int fd, const void *buf, size_t count);
/**
* Access to the OS open() system call
*
* \param pathname Pathname of file to open
* \param flags Flags, like O_RDONLY, O_RDWR
* \return file descriptor, or -1 on error
*/
int os_open(const char *pathname, int flags);
/**
* Access to the OS close() system call
*
* \param fd File descriptor to close
* \return 0 on success, -1 on error
*/
int os_close(int fd);
/**
* Access to the OS exit() system call
*
* This exits with the supplied return code, which should be 0 to indicate
* success.
*
* @param exit_code exit code for U-Boot
*/
void os_exit(int exit_code);
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