| Message ID | 20200416043826.490120-4-masahiroy@kernel.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | support separate asm-offsets.h for SPL and TPL | expand |
Hi Masahiro, On Thu, Apr 16, 2020 at 12:39 PM Masahiro Yamada <masahiroy at kernel.org> wrote: > > Currently generic-asm-offsets.h and asm-offsets.h are generated based > on U-Boot proper config options. The same asm-offsets headers are used > for building U-Boot SPL/TPL, which causes potential offset mismatch if > U-Boot proper has different config options from U-Boot SPL/TPL. > Thank you very much for doing this. > This commit adds: > spl/include/generated/(generic-)asm-offsets.h > tpl/include/generated/(generic-)asm-offsets.h > > spl/include/generated/(generic-)asm-offsets.h is generated if > CONFIG_SPL=y, and included when building SPL. > > tpl/include/generated/(generic-)asm-offsets.h is generated if > CONFIG_TPL=y, and included when building TPL. > > They are created before Kbuild descends into SPL/TPL object directories > and builds $(obj)/dts/dt-platdata.o because $(obj)/dts/dt-platdata.c > includes a bunch of headers. > > Prepend -I$(obj)/include to $(UBOOTINCLUDE) so (generic-)asm-offsets.h > is searched in {spl,tpl}/include/generated/. > This patch does not apply on top of u-boot/master, unfortunately. > Requested-by: Bin Meng <bmeng.cn at gmail.com> > Signed-off-by: Masahiro Yamada <masahiroy at kernel.org> > --- > > Kbuild | 4 ++-- > scripts/Makefile.spl | 10 ++++++++-- > 2 files changed, 10 insertions(+), 4 deletions(-) > I manually applied the changes and had a test, but it failed to build. See below: > diff --git a/Kbuild b/Kbuild > index 6014f7c34a..1eac091594 100644 > --- a/Kbuild > +++ b/Kbuild > @@ -10,7 +10,7 @@ generic-offsets-file := include/generated/generic-asm-offsets.h > always := $(generic-offsets-file) > targets := lib/asm-offsets.s > > -$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE > +$(obj)/$(generic-offsets-file): $(obj)/lib/asm-offsets.s FORCE CC spl/./lib/asm-offsets.s cc1: fatal error: can't open 'spl/./lib/asm-offsets.s' for writing: No such file or directory compilation terminated. scripts/Makefile.build:166: recipe for target 'spl/./lib/asm-offsets.s' failed make[2]: *** [spl/./lib/asm-offsets.s] Error 1 scripts/Makefile.spl:432: recipe for target 'prepare' failed make[1]: *** [prepare] Error 2 Makefile:1917: recipe for target 'spl/u-boot-spl' failed make: *** [spl/u-boot-spl] Error 2 When I removed the changes for this line, and the line below, the build could pass. The spl/include/generated/(generic-)asm-offsets.h were generated, and I verified the macro values are correct and different with the U-Boot proper one. But since there is no $(obj) prepended to lib/asm-offsets.s, I believe this is still not perfect. > $(call filechk,offsets,__GENERIC_ASM_OFFSETS_H__) > > ##### > @@ -25,5 +25,5 @@ targets += arch/$(ARCH)/lib/asm-offsets.s > > CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY > > -$(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s FORCE > +$(obj)/$(offsets-file): $(obj)/arch/$(ARCH)/lib/asm-offsets.s FORCE > $(call filechk,offsets,__ASM_OFFSETS_H__) > diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl > index 98c04bbbfc..c3fa45f520 100644 > --- a/scripts/Makefile.spl > +++ b/scripts/Makefile.spl > @@ -22,6 +22,8 @@ include $(srctree)/scripts/Kbuild.include > -include include/config/auto.conf > -include $(obj)/include/autoconf.mk > > +UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE) > + > KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD > ifeq ($(CONFIG_TPL_BUILD),y) > KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD > @@ -311,7 +313,7 @@ cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@) > > targets += $(obj)/dts/dt-platdata.o > $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ > - include/generated/dt-structs-gen.h FORCE > + include/generated/dt-structs-gen.h prepare FORCE > $(call if_changed,plat) > > PHONY += dts_dir > @@ -422,9 +424,13 @@ $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ > $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; > > PHONY += $(u-boot-spl-dirs) > -$(u-boot-spl-dirs): $(u-boot-spl-platdata) > +$(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare > $(Q)$(MAKE) $(build)=$@ > > +PHONY += prepare > +prepare: > + $(Q)$(MAKE) $(build)=$(obj)/. > + > quiet_cmd_cpp_lds = LDS $@ > cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ > -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< > -- Regards, Bin
On Thu, Apr 16, 2020 at 11:15 PM Bin Meng <bmeng.cn at gmail.com> wrote: > > Hi Masahiro, > > On Thu, Apr 16, 2020 at 12:39 PM Masahiro Yamada <masahiroy at kernel.org> wrote: > > > > Currently generic-asm-offsets.h and asm-offsets.h are generated based > > on U-Boot proper config options. The same asm-offsets headers are used > > for building U-Boot SPL/TPL, which causes potential offset mismatch if > > U-Boot proper has different config options from U-Boot SPL/TPL. > > > > Thank you very much for doing this. > > > This commit adds: > > spl/include/generated/(generic-)asm-offsets.h > > tpl/include/generated/(generic-)asm-offsets.h > > > > spl/include/generated/(generic-)asm-offsets.h is generated if > > CONFIG_SPL=y, and included when building SPL. > > > > tpl/include/generated/(generic-)asm-offsets.h is generated if > > CONFIG_TPL=y, and included when building TPL. > > > > They are created before Kbuild descends into SPL/TPL object directories > > and builds $(obj)/dts/dt-platdata.o because $(obj)/dts/dt-platdata.c > > includes a bunch of headers. > > > > Prepend -I$(obj)/include to $(UBOOTINCLUDE) so (generic-)asm-offsets.h > > is searched in {spl,tpl}/include/generated/. > > > > This patch does not apply on top of u-boot/master, unfortunately. > > > Requested-by: Bin Meng <bmeng.cn at gmail.com> > > Signed-off-by: Masahiro Yamada <masahiroy at kernel.org> > > --- > > > > Kbuild | 4 ++-- > > scripts/Makefile.spl | 10 ++++++++-- > > 2 files changed, 10 insertions(+), 4 deletions(-) > > > > I manually applied the changes and had a test, but it failed to build. > See below: > > > diff --git a/Kbuild b/Kbuild > > index 6014f7c34a..1eac091594 100644 > > --- a/Kbuild > > +++ b/Kbuild > > @@ -10,7 +10,7 @@ generic-offsets-file := include/generated/generic-asm-offsets.h > > always := $(generic-offsets-file) > > targets := lib/asm-offsets.s > > > > -$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE > > +$(obj)/$(generic-offsets-file): $(obj)/lib/asm-offsets.s FORCE > > CC spl/./lib/asm-offsets.s > cc1: fatal error: can't open 'spl/./lib/asm-offsets.s' for writing: No > such file or directory > compilation terminated. > scripts/Makefile.build:166: recipe for target 'spl/./lib/asm-offsets.s' failed > make[2]: *** [spl/./lib/asm-offsets.s] Error 1 > scripts/Makefile.spl:432: recipe for target 'prepare' failed > make[1]: *** [prepare] Error 2 > Makefile:1917: recipe for target 'spl/u-boot-spl' failed > make: *** [spl/u-boot-spl] Error 2 > > When I removed the changes for this line, and the line below, the > build could pass. > The spl/include/generated/(generic-)asm-offsets.h were generated, and > I verified the macro values are correct and different with the U-Boot > proper one. > > But since there is no $(obj) prepended to lib/asm-offsets.s, I believe > this is still not perfect. This is because you remove the needed changes.
Hi Masahiro, On Fri, Apr 17, 2020 at 3:02 PM Masahiro Yamada <masahiroy at kernel.org> wrote: > > On Thu, Apr 16, 2020 at 11:15 PM Bin Meng <bmeng.cn at gmail.com> wrote: > > > > Hi Masahiro, > > > > On Thu, Apr 16, 2020 at 12:39 PM Masahiro Yamada <masahiroy at kernel.org> wrote: > > > > > > Currently generic-asm-offsets.h and asm-offsets.h are generated based > > > on U-Boot proper config options. The same asm-offsets headers are used > > > for building U-Boot SPL/TPL, which causes potential offset mismatch if > > > U-Boot proper has different config options from U-Boot SPL/TPL. > > > > > > > Thank you very much for doing this. > > > > > This commit adds: > > > spl/include/generated/(generic-)asm-offsets.h > > > tpl/include/generated/(generic-)asm-offsets.h > > > > > > spl/include/generated/(generic-)asm-offsets.h is generated if > > > CONFIG_SPL=y, and included when building SPL. > > > > > > tpl/include/generated/(generic-)asm-offsets.h is generated if > > > CONFIG_TPL=y, and included when building TPL. > > > > > > They are created before Kbuild descends into SPL/TPL object directories > > > and builds $(obj)/dts/dt-platdata.o because $(obj)/dts/dt-platdata.c > > > includes a bunch of headers. > > > > > > Prepend -I$(obj)/include to $(UBOOTINCLUDE) so (generic-)asm-offsets.h > > > is searched in {spl,tpl}/include/generated/. > > > > > > > This patch does not apply on top of u-boot/master, unfortunately. > > > > > Requested-by: Bin Meng <bmeng.cn at gmail.com> > > > Signed-off-by: Masahiro Yamada <masahiroy at kernel.org> > > > --- > > > > > > Kbuild | 4 ++-- > > > scripts/Makefile.spl | 10 ++++++++-- > > > 2 files changed, 10 insertions(+), 4 deletions(-) > > > > > > > I manually applied the changes and had a test, but it failed to build. > > See below: > > > > > diff --git a/Kbuild b/Kbuild > > > index 6014f7c34a..1eac091594 100644 > > > --- a/Kbuild > > > +++ b/Kbuild > > > @@ -10,7 +10,7 @@ generic-offsets-file := include/generated/generic-asm-offsets.h > > > always := $(generic-offsets-file) > > > targets := lib/asm-offsets.s > > > > > > -$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE > > > +$(obj)/$(generic-offsets-file): $(obj)/lib/asm-offsets.s FORCE > > > > CC spl/./lib/asm-offsets.s > > cc1: fatal error: can't open 'spl/./lib/asm-offsets.s' for writing: No > > such file or directory > > compilation terminated. > > scripts/Makefile.build:166: recipe for target 'spl/./lib/asm-offsets.s' failed > > make[2]: *** [spl/./lib/asm-offsets.s] Error 1 > > scripts/Makefile.spl:432: recipe for target 'prepare' failed > > make[1]: *** [prepare] Error 2 > > Makefile:1917: recipe for target 'spl/u-boot-spl' failed > > make: *** [spl/u-boot-spl] Error 2 > > > > When I removed the changes for this line, and the line below, the > > build could pass. > > The spl/include/generated/(generic-)asm-offsets.h were generated, and > > I verified the macro values are correct and different with the U-Boot > > proper one. > > > > But since there is no $(obj) prepended to lib/asm-offsets.s, I believe > > this is still not perfect. > > > This is because you remove the needed changes. I applied patch 1, and manually applied patch 3 in this series. Do you mean patch 2 is needed for patch 3 to work properly? Regards, Bin
Hi Bin, On Fri, Apr 17, 2020 at 4:10 PM Bin Meng <bmeng.cn at gmail.com> wrote: > > Hi Masahiro, > > > > > > > This is because you remove the needed changes. > > I applied patch 1, and manually applied patch 3 in this series. Do you > mean patch 2 is needed for patch 3 to work properly? Yes, that's why I sent the 3 patches in a series.
diff --git a/Kbuild b/Kbuild index 6014f7c34a..1eac091594 100644 --- a/Kbuild +++ b/Kbuild @@ -10,7 +10,7 @@ generic-offsets-file := include/generated/generic-asm-offsets.h always := $(generic-offsets-file) targets := lib/asm-offsets.s -$(obj)/$(generic-offsets-file): lib/asm-offsets.s FORCE +$(obj)/$(generic-offsets-file): $(obj)/lib/asm-offsets.s FORCE $(call filechk,offsets,__GENERIC_ASM_OFFSETS_H__) ##### @@ -25,5 +25,5 @@ targets += arch/$(ARCH)/lib/asm-offsets.s CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY -$(obj)/$(offsets-file): arch/$(ARCH)/lib/asm-offsets.s FORCE +$(obj)/$(offsets-file): $(obj)/arch/$(ARCH)/lib/asm-offsets.s FORCE $(call filechk,offsets,__ASM_OFFSETS_H__) diff --git a/scripts/Makefile.spl b/scripts/Makefile.spl index 98c04bbbfc..c3fa45f520 100644 --- a/scripts/Makefile.spl +++ b/scripts/Makefile.spl @@ -22,6 +22,8 @@ include $(srctree)/scripts/Kbuild.include -include include/config/auto.conf -include $(obj)/include/autoconf.mk +UBOOTINCLUDE := -I$(obj)/include $(UBOOTINCLUDE) + KBUILD_CPPFLAGS += -DCONFIG_SPL_BUILD ifeq ($(CONFIG_TPL_BUILD),y) KBUILD_CPPFLAGS += -DCONFIG_TPL_BUILD @@ -311,7 +313,7 @@ cmd_plat = $(CC) $(c_flags) -c $< -o $(filter-out $(PHONY),$@) targets += $(obj)/dts/dt-platdata.o $(obj)/dts/dt-platdata.o: $(obj)/dts/dt-platdata.c \ - include/generated/dt-structs-gen.h FORCE + include/generated/dt-structs-gen.h prepare FORCE $(call if_changed,plat) PHONY += dts_dir @@ -422,9 +424,13 @@ $(obj)/$(SPL_BIN): $(u-boot-spl-platdata) $(u-boot-spl-init) \ $(sort $(u-boot-spl-init) $(u-boot-spl-main)): $(u-boot-spl-dirs) ; PHONY += $(u-boot-spl-dirs) -$(u-boot-spl-dirs): $(u-boot-spl-platdata) +$(u-boot-spl-dirs): $(u-boot-spl-platdata) prepare $(Q)$(MAKE) $(build)=$@ +PHONY += prepare +prepare: + $(Q)$(MAKE) $(build)=$(obj)/. + quiet_cmd_cpp_lds = LDS $@ cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
Currently generic-asm-offsets.h and asm-offsets.h are generated based on U-Boot proper config options. The same asm-offsets headers are used for building U-Boot SPL/TPL, which causes potential offset mismatch if U-Boot proper has different config options from U-Boot SPL/TPL. This commit adds: spl/include/generated/(generic-)asm-offsets.h tpl/include/generated/(generic-)asm-offsets.h spl/include/generated/(generic-)asm-offsets.h is generated if CONFIG_SPL=y, and included when building SPL. tpl/include/generated/(generic-)asm-offsets.h is generated if CONFIG_TPL=y, and included when building TPL. They are created before Kbuild descends into SPL/TPL object directories and builds $(obj)/dts/dt-platdata.o because $(obj)/dts/dt-platdata.c includes a bunch of headers. Prepend -I$(obj)/include to $(UBOOTINCLUDE) so (generic-)asm-offsets.h is searched in {spl,tpl}/include/generated/. Requested-by: Bin Meng <bmeng.cn at gmail.com> Signed-off-by: Masahiro Yamada <masahiroy at kernel.org> --- Kbuild | 4 ++-- scripts/Makefile.spl | 10 ++++++++-- 2 files changed, 10 insertions(+), 4 deletions(-)