kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o

This is a preparation for moving the objtool rule in the next commit.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
This commit is contained in:
Masahiro Yamada
2022-05-29 00:47:03 +09:00
parent b0d6207bad
commit 5d45950dfb
2 changed files with 62 additions and 40 deletions

View File

@@ -45,45 +45,6 @@ info()
printf " %-7s %s\n" "${1}" "${2}"
}
# Generate a linker script to ensure correct ordering of initcalls.
gen_initcalls()
{
info GEN .tmp_initcalls.lds
${PYTHON3} ${srctree}/scripts/jobserver-exec \
${PERL} ${srctree}/scripts/generate_initcall_order.pl \
${KBUILD_VMLINUX_OBJS} ${KBUILD_VMLINUX_LIBS} \
> .tmp_initcalls.lds
}
# Link of vmlinux.o used for section mismatch analysis
# ${1} output file
modpost_link()
{
local objects
local lds=""
objects="--whole-archive \
${KBUILD_VMLINUX_OBJS} \
--no-whole-archive \
--start-group \
${KBUILD_VMLINUX_LIBS} \
--end-group"
if is_enabled CONFIG_LTO_CLANG; then
gen_initcalls
lds="-T .tmp_initcalls.lds"
# This might take a while, so indicate that we're doing
# an LTO link
info LTO ${1}
else
info LD ${1}
fi
${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${lds} ${objects}
}
objtool_link()
{
local objtoolcmd;
@@ -336,7 +297,7 @@ fi;
${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init need-builtin=1
#link vmlinux.o
modpost_link vmlinux.o
${MAKE} -f "${srctree}/scripts/Makefile.vmlinux_o"
objtool_link vmlinux.o
# Generate the list of in-tree objects in vmlinux