u-boot/arch/sandbox/cpu/Makefile

#
# Copyright (c) 2011 The Chromium OS Authors.
#
# (C) Copyright 2000-2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier:	GPL-2.0+
#

obj-y	:= cpu.o os.o start.o state.o

# os.c is build in the system environment, so needs standard includes
$(obj)/os.o: CFLAGS := $(filter-out -nostdinc,\
	$(patsubst -I%,-idirafter%,$(CFLAGS)))
$(obj)/.depend.os: CPPFLAGS := $(filter-out -nostdinc,\
	$(patsubst -I%,-idirafter%,$(CPPFLAGS)))
sandbox: Add cpu files This is an initial implementation with all functions defined but not working. The lds file is very simple since we can mostly rely on the linker defaults. Signed-off-by: Simon Glass <sjg@chromium.org> 2011-09-26 14:10:39 +00:00			`#`
			`# Copyright (c) 2011 The Chromium OS Authors.`
			`#`
			`# (C) Copyright 2000-2003`
			`# Wolfgang Denk, DENX Software Engineering, wd@denx.de.`
			`#`
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com> 2013-07-08 09:37:19 +02:00			`# SPDX-License-Identifier: GPL-2.0+`
sandbox: Add cpu files This is an initial implementation with all functions defined but not working. The lds file is very simple since we can mostly rely on the linker defaults. Signed-off-by: Simon Glass <sjg@chromium.org> 2011-09-26 14:10:39 +00:00			`#`

sandbox: convert makefiles to Kbuild style Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> 2013-10-17 17:35:03 +09:00			`obj-y := cpu.o os.o start.o state.o`
sandbox: Add cpu files This is an initial implementation with all functions defined but not working. The lds file is very simple since we can mostly rely on the linker defaults. Signed-off-by: Simon Glass <sjg@chromium.org> 2011-09-26 14:10:39 +00:00
sandbox: fix compiling of cpu/os.c U-boot itself generally builds with -nostdinc. This is because the bootloader needs to be completely standalone. In the sandbox arch though, we need a little bit of code to glue the u-boot world to the host operating system, and we need to be able to access the host libc's headers in order to do so. Currently, we're using -I/usr/include to workaround the global -nostdinc, but that doesn't work for everyone and for all headers. Instead, let's filter out -nostdinc when building the os.c code. Without this patch, some distros hit errors such as: ---8<--- In file included from /usr/include/fcntl.h:27:0, from os.c:22: /usr/include/features.h:323:26: fatal error: bits/predefs.h: No such file or directory --->8--- Signed-off-by: Andreas Bießmann <biessmann@corscience.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org> 2011-12-02 11:53:13 +01:00			`# os.c is build in the system environment, so needs standard includes`
kbuild: change out-of-tree build This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de> 2014-02-04 17:24:24 +09:00			`$(obj)/os.o: CFLAGS := $(filter-out -nostdinc,\`
sandbox: Use system headers first for sandbox's os.c in a different way Commit cbe5cdfcd changed config.mk and arch/sandbox/cpu/Makefile to use -idirafter instead of -I and remove -nostdinc. But * Sandbox-specific code dirties config.mk * os.c is compiled without such compiler flags as: -Wall -Wstrict-prototypes -Wno-format-security -fno-builtin -ffreestanding -fno-stack-protector -fstack-usage -Wno-format-nonliteral This commit use -idirafter and remove the -nostdinc differently and more simply. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> 2013-11-26 16:13:59 +09:00			`$(patsubst -I%,-idirafter%,$(CFLAGS)))`
kbuild: change out-of-tree build This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de> 2014-02-04 17:24:24 +09:00			`$(obj)/.depend.os: CPPFLAGS := $(filter-out -nostdinc,\`
sandbox: Use system headers first for sandbox's os.c in a different way Commit cbe5cdfcd changed config.mk and arch/sandbox/cpu/Makefile to use -idirafter instead of -I and remove -nostdinc. But * Sandbox-specific code dirties config.mk * os.c is compiled without such compiler flags as: -Wall -Wstrict-prototypes -Wno-format-security -fno-builtin -ffreestanding -fno-stack-protector -fstack-usage -Wno-format-nonliteral This commit use -idirafter and remove the -nostdinc differently and more simply. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> 2013-11-26 16:13:59 +09:00			`$(patsubst -I%,-idirafter%,$(CPPFLAGS)))`