[U-Boot] [RFC PATCH 13/20] sandbox: Add OS dependent layer

Simon Glass
2011-09-17T16:48:52Z

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>
---
arch/sandbox/config.mk | 2 +-
board/sandbox/common/Makefile | 47 +++++++++++++++++++++++++++++++++++++++
board/sandbox/common/os.c | 49 +++++++++++++++++++++++++++++++++++++++++
include/os.h | 27 ++++++++++++++++++++++
4 files changed, 124 insertions(+), 1 deletions(-)
create mode 100644 board/sandbox/common/Makefile
create mode 100644 board/sandbox/common/os.c
create mode 100644 include/os.h

diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index d9956ff..f0f1472 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -17,5 +17,5 @@
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA

-PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__
+PLATFORM_CPPFLAGS += -DCONFIG_SANDBOX -D__SANDBOX__ -I/usr/include
LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds
diff --git a/board/sandbox/common/Makefile b/board/sandbox/common/Makefile
new file mode 100644
index 0000000..3289368
--- /dev/null
+++ b/board/sandbox/common/Makefile
@@ -0,0 +1,47 @@
+# 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 $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(VENDOR).o
+
+COBJS-y += os.o
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+all: $(LIB)
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+# This is for $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/sandbox/common/os.c b/board/sandbox/common/os.c
new file mode 100644
index 0000000..8df7b7e
--- /dev/null
+++ b/board/sandbox/common/os.c
@@ -0,0 +1,49 @@
+/*
+ * 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 <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);
+}
diff --git a/include/os.h b/include/os.h
new file mode 100644
index 0000000..3010920
--- /dev/null
+++ b/include/os.h
@@ -0,0 +1,27 @@
+/*
+ * 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 */
+
+ssize_t os_read(int fd, void *buf, size_t count);
+ssize_t os_write(int fd, const void *buf, size_t count);
+int os_open(const char *pathname, int flags);
+int os_close(int fd);
--
1.7.3.1