u-boot/post/lib_powerpc/fpu/Makefile

# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2007
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.

objs-before-objcopy := 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o \
	acc1.o compare-fp-1.o fpu.o mul-subnormal-single-1.o darwin-ldouble.o
targets += $(objs-before-objcopy)

# remove -msoft-float flag
$(foreach m, $(objs-before-objcopy), $(eval CFLAGS_REMOVE_$m := -msoft-float))
ccflags-y := -mhard-float -fkeep-inline-functions

obj-y := $(objs-before-objcopy:.o=_.o)

OBJCOPYFLAGS := -R .gnu.attributes
$(obj)/%_.o: $(obj)/%.o FORCE
	$(call if_changed,objcopy)
SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com> 2018-05-06 21:58:06 +00:00			`# SPDX-License-Identifier: GPL-2.0+`
Merged POST framework with the current TOT. Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com> 2007-07-05 06:17:37 +00:00			`#`
			`# (C) Copyright 2007`
			`# Wolfgang Denk, DENX Software Engineering, wd@denx.de.`

kbuild: use Linux Kernel build scripts Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de> 2014-02-04 08:24:28 +00:00			`objs-before-objcopy := 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o \`
			`acc1.o compare-fp-1.o fpu.o mul-subnormal-single-1.o darwin-ldouble.o`
			`targets += $(objs-before-objcopy)`
Merged POST framework with the current TOT. Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com> 2007-07-05 06:17:37 +00:00
kbuild: use Linux Kernel build scripts Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de> 2014-02-04 08:24:28 +00:00			`# remove -msoft-float flag`
			`$(foreach m, $(objs-before-objcopy), $(eval CFLAGS_REMOVE_$m := -msoft-float))`
			`ccflags-y := -mhard-float -fkeep-inline-functions`
PPC: fix "Warning: FOO uses hard float, BAR uses soft float". It appears that with recent versions of GCC the explicit "-mhard-float" command line option takes precedence over the ``asm(".gnu_attribute 4, 2");'' in the source file, so this no longer helps to avoid the warnings we get when linking code that uses FP instructions with other code that was built using soft-float. We can remove the ".gnu_attribute" (which appears to carry no other information, at least so far) from the object files, but we also have to make sure we don't pull in the __gcc_qsub() and __gcc_qmul() functions from the standard libgcc, as these would again "infect" our linking. We copy this code from: gcc-4.2.2/gcc/config/rs6000/darwin-ldouble.c This old version was chosen because it was still available under a compatible license (GCC v2+). The file was stripped down to the needed parts, and reformatted so it passes checkpatch with only one warning (do not add new typedefs). Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Stefan Roese <sr@denx.de> Cc: Andy Fleming <afleming@gmail.com> Cc: Kim Phillips <kim.phillips@freescale.com> Tested-by: Stefan Roese <sr@denx.de> Tested-by: Anatolij Gustschin <agust@denx.de> 2011-12-22 04:29:41 +00:00
kbuild: use Linux Kernel build scripts Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de> 2014-02-04 08:24:28 +00:00			`obj-y := $(objs-before-objcopy:.o=_.o)`

			`OBJCOPYFLAGS := -R .gnu.attributes`
kbuild: post: fix dependency tracking correctly $(call if_changed,...) must take FORCE as a prerequite. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> 2014-02-26 02:26:08 +00:00			`$(obj)/%_.o: $(obj)/%.o FORCE`
kbuild: use Linux Kernel build scripts Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de> 2014-02-04 08:24:28 +00:00			`$(call if_changed,objcopy)`