search for: klibclibgcc

...--git a/scripts/Kbuild.klibc b/scripts/Kbuild.klibc index 411d7ea9bea6..ba3f389626b3 100644 --- a/scripts/Kbuild.klibc +++ b/scripts/Kbuild.klibc @@ -141,6 +141,8 @@ KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note # Don't attempt to set it if we are using clang. ifneq ($(cc-name),clang) KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc) +else +KLIBCLIBGCC_DEF := $(KLIBCOBJ)/libc.a endif KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCHDIR)/crt0.o diff --git a/usr/klibc/arch/x86_64/MCONFIG b/usr/klibc/arch/x86_64/MCONFIG index ac1ac074c0...

...cmd_ld-shared = KLIBCLD $@ $(KLIBCEMAIN) $(KLIBCCRTSHARED) \ --start-group \ $(link-deps) \ - -R $(KLIBCLIBCSHARED) \ + --just-symbols $(KLIBCLIBCSHARED) \ $(KLIBCLIBGCC) \ --end-group ; \ cp -f $@ $@.g ; \ -- 2.28.0.220.ged08abb693-goog

...ITSIZE=$(KLIBCBITSIZE) +KLIBCCPPFLAGS += $(KLIBCDEFS) +KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ + $(KLIBCOPTFLAGS) $(KLIBCWARNFLAGS) +KLIBCAFLAGS += -D__ASSEMBLY__ $(KLIBCCFLAGS) +KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note + +KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc) +KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) +KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCHDIR)/crt0.o +KLIBCLIBC := $(KLIBCOBJ)/libc.a +KLIBCCRTSHARED := $(KLIBCOBJ)/interp.o +KLIBCLIBCSHARED := $(KLIBCOBJ)/libc.so +# How to tell the li...

...ERNELSRC ?= $(srctree) KLIBCCPPFLAGS += -I$(KLIBCKERNELSRC)/include \ @@ -128,8 +133,8 @@ KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ KLIBCAFLAGS += -D__ASSEMBLY__ -Wa,--noexecstack $(KLIBCCFLAGS) KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note -KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc) -KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) +KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) $(if $(filter gcc,$(cc-name)),--print-libgcc,--print-libgcc-file-name)) +KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) KLIBCCRT0 := $(KLIBCOBJ)/arch/...

...lude paths KLIBCKERNELSRC ?= $(srctree) KLIBCCPPFLAGS += -I$(KLIBCKERNELSRC)/include \ @@ -131,8 +136,8 @@ KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ KLIBCAFLAGS += -D__ASSEMBLY__ $(KLIBCCFLAGS) KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note -KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc) -KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) +KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) $(if $(filter gcc,$(cc-name)),--print-libgcc,--print-libgcc-file-name)) +KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) KLIBCCRT0 := $(KLIBCOBJ)/arch/...

- Renamed IMAGE_BASE to LD_IMAGE_BASE_OPT. - Moved "-fcommon" to KLIBCREQFLAGS in scripts/Kbuild.klibc. - Remove "dash" warning fixes which have been upstreamed. - Conditionalize the inclusion of compiler flags by using the proper compiler name or "cc-option". - Added "-Werror" to "cc-option" to catch flags that cause warnings. - Retain

...\ -I$(KLIBCOBJ)/../include \ -I$(KLIBCINC) @@ -128,7 +135,13 @@ KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ KLIBCAFLAGS += -D__ASSEMBLY__ -Wa,--noexecstack $(KLIBCCFLAGS) KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note +# KLIBCLIBGCC_DEF appears to be unnecessary since klibc never uses -nostdlib +# when linking binaries, which means that any compiler specific libraries +# should be available automatically, no need to speciy an explicit path. +# Don't attempt to set it if we are using clang. +ifneq ($(cc-name),clang) KLIBCL...

...0700, Bill Wendling wrote: > Clang doesn't have a suitable replacement for libgcc readily available. > Supply one that we know exists. Use "-fno-builtin-bcmp" to prevent clang > from calling a function that doesn't exist. Doesn't this contradict the comment added for KLIBCLIBGCC_DEF? > Signed-off-by: Bill Wendling <morbo at google.com> > --- > scripts/Kbuild.klibc | 2 ++ > usr/klibc/arch/x86_64/MCONFIG | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/scripts/Kbuild.klibc b/scripts/Kbuild.klibc > index 411d7ea9bea6..ba3f...

...cmd_ld-shared = KLIBCLD $@ $(KLIBCEMAIN) $(KLIBCCRTSHARED) \ --start-group \ $(link-deps) \ - -R $(KLIBCLIBCSHARED) \ + --just-symbols $(KLIBCLIBCSHARED) \ $(KLIBCLIBGCC) \ --end-group ; \ cp -f $@ $@.g ; \

...Kbuild.klibc +++ b/scripts/Kbuild.klibc @@ -82,6 +82,7 @@ KLIBCCFLAGS := # Defaults for arch to override KLIBCARCHINCFLAGS = +KLIBCCRTSHARED := $(KLIBCOBJ)/interp.o # Arch specific definitions for klibc include $(srctree)/$(KLIBCSRC)/arch/$(KLIBCARCHDIR)/MCONFIG @@ -141,7 +142,6 @@ KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) $(if $(filter gcc,$(cc-nam KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCHDIR)/crt0.o KLIBCLIBC := $(KLIBCOBJ)/libc.a -KLIBCCRTSHARED := $(KLIBCOBJ)/interp.o KLIBCLIBCSHARED := $(KLIBCOBJ)/libc.so # How...

...lude \ > -I$(KLIBCINC) > @@ -128,7 +135,13 @@ KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ > KLIBCAFLAGS += -D__ASSEMBLY__ -Wa,--noexecstack $(KLIBCCFLAGS) > KLIBCSTRIPFLAGS += --strip-all -R .comment -R .note > > +# KLIBCLIBGCC_DEF appears to be unnecessary since klibc never uses -nostdlib > +# when linking binaries, which means that any compiler specific libraries > +# should be available automatically, no need to speciy an explicit path. > +# Don't attempt to set it if we are using clang. > +ifneq ($(cc-...

This is a series of patches for clang compatibility: - Using flags needed flags and removing unsupported flags. - Adding support for clang's LLD linker. - Removing a variety of warnings. Bill Wendling (3): [klibc] Kbuild: use "libc.a" with clang [klibc] Kbuild: Add "-fcommon" for clang builds [klibc] Clean up clang warnings Michael Davidson (1): [klibc] Kbuild:

....list FORCE $(call if_changed,libc) ###### @@ -130,12 +119,14 @@ targets += libc.so __shared_init.o quiet_cmd_libcso = KLIBCLD $@ cmd_libcso = $(KLIBCLD) $(KLIBCLDFLAGS) $(KLIBCSHAREDFLAGS) -o $@ \ - --start-group \ - $(patsubst %.list,`cat %.list`,$(filter-out FORCE,$^)) \ - $(KLIBCLIBGCC) \ + --start-group \ + $(CRT0) \ + $(call objectify,__shared_init.o) \ + $(klib-o-files) \ + $(KLIBCLIBGCC) \ --end-group -$(SOLIB): $(CRT0) $(call objectify,__shared_init.o) $(libc-deps) FORCE +$(SOLIB): $(call objectify,__shared_init.o) $(obj)/klib.list FORCE $...

...+KLIBCCPPFLAGS := -I$(KLIBCINC)/arch/$(KLIBCARCHDIR) \ -I$(KLIBCINC)/bits$(KLIBCBITSIZE) \ -I$(KLIBCINC) # kernel include paths @@ -93,7 +93,7 @@ KLIBCAFLAGS := -D__ASSEMBLY__ $(KLI KLIBCSTRIPFLAGS := --strip-all -R .comment -R .note KLIBCLIBGCC := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc) -KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCH)/crt0.o +KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCHDIR)/crt0.o KLIBCLIBC := $(KLIBCOBJ)/libc.a KLIBCCRTSHARED := $(KLIBCOBJ)/interp.o KLIBCLIBCSHARED := $(KLIBCOBJ)/libc.so...

...(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ +KLIBCCFLAGS += $(KLIBCCPPFLAGS) $(KLIBCREQFLAGS) $(KLIBCARCHREQFLAGS) \ $(KLIBCOPTFLAGS) $(KLIBCWARNFLAGS) KLIBCAFLAGS := -D__ASSEMBLY__ $(KLIBCCFLAGS) KLIBCSTRIPFLAGS := --strip-all -R .comment -R .note KLIBCLIBGCC_DEF := $(shell $(KLIBCCC) $(KLIBCCFLAGS) --print-libgcc) KLIBCLIBGCC ?= $(KLIBCLIBGCC_DEF) -KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCH)/crt0.o +KLIBCCRT0 := $(KLIBCOBJ)/arch/$(KLIBCARCHDIR)/crt0.o KLIBCLIBC := $(KLIBCOBJ)/libc.a KLIBCCRTSHARED := $(KLIBCOBJ)/interp.o KLI...

Hello! Can someone please help me in building debug version of klibc ? I've cloned git://git.kernel.org/pub/scm/libs/klibc/klibc.git , but failed to build it with debug info added "-g" to HOSTCFLAGS in Makefile, but $ make -j KLIBCKERNELSRC=`pwd`/../linux-2.6/usr still strips every debug symbol , and i'm failed to change scripts/Kbuild.klibc and Makefile to remove strip

The following patchset implements 3 seperate series of changes. External Building ================= Patches 1 through 8 enable to use of klibc's build system while leaving the src tree pristine (and potentially read only). Specifically: - srctree=<Sources for klibc> - objtree=<Ouput directory for klibc> - KLIBCKERNELSRC=<Kernel sources> - KLIBCKERNELOBJ=<Kernel

I have updated the klibc patchset based on feedback received. In particular, the patchset has been reorganized so as not to break git-bisect. Additionally, this updates the patch base to 2.6.17-git12 (d38b69689c349f35502b92e20dafb30c62d49d63) and klibc 1.4.8; the main difference on the klibc side is removal of obsolete code. This is also available as a git tree at: