[PATCH v6 03/10] kbuild: stop merging *.symversions
From: Masahiro Yamada <masahiroy@kernel.org>
Date: 2022-05-13 11:43:02
Also in:
linux-kbuild, lkml, llvm
Subsystem:
kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
Now modpost reads symbol versions from .*.cmd files. The merged *.symversions are no longer needed. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nicolas Schier <redacted> Tested-by: Nathan Chancellor <nathan@kernel.org> --- (no changes since v1) scripts/Makefile.build | 21 ++------------------- scripts/link-vmlinux.sh | 19 ------------------- 2 files changed, 2 insertions(+), 38 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index ddd9080fc028..dff9220135c4 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build@@ -390,17 +390,6 @@ $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler $(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ; $(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ; -# combine symversions for later processing -ifeq ($(CONFIG_LTO_CLANG) $(CONFIG_MODVERSIONS),y y) - cmd_update_lto_symversions = \ - rm -f $@.symversions \ - $(foreach n, $(filter-out FORCE,$^), \ - $(if $(shell test -s $(n).symversions && echo y), \ - ; cat $(n).symversions >> $@.symversions)) -else - cmd_update_lto_symversions = echo >/dev/null -endif - # # Rule to compile a set of .o files into one .a file (without symbol table) #
@@ -408,11 +397,8 @@ endif quiet_cmd_ar_builtin = AR $@ cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs) -quiet_cmd_ar_and_symver = AR $@ - cmd_ar_and_symver = $(cmd_update_lto_symversions); $(cmd_ar_builtin) - $(obj)/built-in.a: $(real-obj-y) FORCE - $(call if_changed,ar_and_symver) + $(call if_changed,ar_builtin) # # Rule to create modules.order file
@@ -432,16 +418,13 @@ $(obj)/modules.order: $(obj-m) FORCE # # Rule to compile a set of .o files into one .a file (with symbol table) # -quiet_cmd_ar_lib = AR $@ - cmd_ar_lib = $(cmd_update_lto_symversions); $(cmd_ar) $(obj)/lib.a: $(lib-y) FORCE - $(call if_changed,ar_lib) + $(call if_changed,ar) ifneq ($(CONFIG_LTO_CLANG)$(CONFIG_X86_KERNEL_IBT),) quiet_cmd_link_multi-m = AR [M] $@ cmd_link_multi-m = \ - $(cmd_update_lto_symversions); \ rm -f $@; \ $(AR) cDPrsT $@ @$(patsubst %.o,%.mod,$@) else
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index 7313cbd755df..47e5336d0c75 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh@@ -56,20 +56,6 @@ gen_initcalls() > .tmp_initcalls.lds } -# If CONFIG_LTO_CLANG is selected, collect generated symbol versions into -# .tmp_symversions.lds -gen_symversions() -{ - info GEN .tmp_symversions.lds - rm -f .tmp_symversions.lds - - for o in ${KBUILD_VMLINUX_OBJS} ${KBUILD_VMLINUX_LIBS}; do - if [ -f ${o}.symversions ]; then - cat ${o}.symversions >> .tmp_symversions.lds - fi - done -} - # Link of vmlinux.o used for section mismatch analysis # ${1} output file modpost_link()
@@ -88,10 +74,6 @@ modpost_link() gen_initcalls lds="-T .tmp_initcalls.lds" - if is_enabled CONFIG_MODVERSIONS; then - gen_symversions - fi - # This might take a while, so indicate that we're doing # an LTO link info LTO ${1}
@@ -307,7 +289,6 @@ cleanup() rm -f .btf.* rm -f .tmp_System.map rm -f .tmp_initcalls.lds - rm -f .tmp_symversions.lds rm -f .tmp_vmlinux* rm -f System.map rm -f vmlinux
--
2.32.0