X-Git-Url: https://git.stricted.de/?a=blobdiff_plain;f=scripts%2Flink-vmlinux.sh;h=c9559fca0efd5a8404511e827081e596cbf4e528;hb=e7bc1bc85c2f80751266cf0662475847e1cb94ae;hp=e7b7eee31538e69963874ae3e326a254dac54622;hpb=e5fa05b96b02f45a91a364d2121451a4da05cd84;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
old mode 100755
new mode 100644
index e7b7eee31538..c9559fca0efd
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # link vmlinux
 #
@@ -60,7 +61,38 @@ archive_builtin()
 		${AR} rcsTP${KBUILD_ARFLAGS} built-in.o			\
 					${KBUILD_VMLINUX_INIT}		\
 					${KBUILD_VMLINUX_MAIN}
+
+		if [ -n "${CONFIG_LTO_CLANG}" ]; then
+			mv -f built-in.o built-in.o.tmp
+			${LLVM_AR} rcsT${KBUILD_ARFLAGS} built-in.o $(${AR} t built-in.o.tmp)
+			rm -f built-in.o.tmp
+		fi
+	fi
+}
+
+# If CONFIG_LTO_CLANG is selected, collect generated symbol versions into
+# .tmp_symversions
+modversions()
+{
+	if [ -z "${CONFIG_LTO_CLANG}" ]; then
+		return
+	fi
+
+	if [ -z "${CONFIG_MODVERSIONS}" ]; then
+		return
 	fi
+
+	rm -f .tmp_symversions
+
+	for a in built-in.o ${KBUILD_VMLINUX_LIBS}; do
+		for o in $(${AR} t $a); do
+			if [ -f ${o}.symversions ]; then
+				cat ${o}.symversions >> .tmp_symversions
+			fi
+		done
+	done
+
+	echo "-T .tmp_symversions"
 }
 
 # Link of vmlinux.o used for section mismatch analysis
@@ -83,7 +115,29 @@ modpost_link()
 			${KBUILD_VMLINUX_LIBS}				\
 			--end-group"
 	fi
-	${LD} ${LDFLAGS} -r -o ${1} ${objects}
+
+	if [ -n "${CONFIG_LTO_CLANG}" ]; then
+		# This might take a while, so indicate that we're doing
+		# an LTO link
+		info LTO vmlinux.o
+	else
+		info LD vmlinux.o
+	fi
+
+	${LD} ${LDFLAGS} -r -o ${1} $(modversions) ${objects}
+}
+
+# If CONFIG_LTO_CLANG is selected, we postpone running recordmcount until
+# we have compiled LLVM IR to an object file.
+recordmcount()
+{
+	if [ -z "${CONFIG_LTO_CLANG}" ]; then
+		return
+	fi
+
+	if [ -n "${CONFIG_FTRACE_MCOUNT_RECORD}" ]; then
+		scripts/recordmcount ${RECORDMCOUNT_FLAGS} $*
+	fi
 }
 
 # Link of vmlinux
@@ -95,8 +149,16 @@ vmlinux_link()
 	local objects
 
 	if [ "${SRCARCH}" != "um" ]; then
-		if [ -n "${CONFIG_THIN_ARCHIVES}" ]; then
-			objects="--whole-archive			\
+		local ld=${LD}
+		local ldflags="${LDFLAGS} ${LDFLAGS_vmlinux}"
+
+		if [ -n "${LDFINAL_vmlinux}" ]; then
+			ld=${LDFINAL_vmlinux}
+			ldflags="${LDFLAGS_FINAL_vmlinux} ${LDFLAGS_vmlinux}"
+		fi
+
+		if [[ -n "${CONFIG_THIN_ARCHIVES}" && -z "${CONFIG_LTO_CLANG}" ]]; then
+			objects="--whole-archive 			\
 				built-in.o				\
 				--no-whole-archive			\
 				--start-group				\
@@ -112,8 +174,7 @@ vmlinux_link()
 				${1}"
 		fi
 
-		${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${2}		\
-			-T ${lds} ${objects}
+		${ld} ${ldflags} -o ${2} -T ${lds} ${objects}
 	else
 		if [ -n "${CONFIG_THIN_ARCHIVES}" ]; then
 			objects="-Wl,--whole-archive			\
@@ -140,7 +201,6 @@ vmlinux_link()
 	fi
 }
 
-
 # Create ${2} .o file with all symbols from the ${1} object file
 kallsyms()
 {
@@ -191,6 +251,7 @@ cleanup()
 	rm -f .tmp_System.map
 	rm -f .tmp_kallsyms*
 	rm -f .tmp_version
+	rm -f .tmp_symversions
 	rm -f .tmp_vmlinux*
 	rm -f built-in.o
 	rm -f System.map
@@ -252,12 +313,22 @@ ${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init GCC_PLUGINS_CFLAGS="${GC
 archive_builtin
 
 #link vmlinux.o
-info LD vmlinux.o
 modpost_link vmlinux.o
 
 # modpost vmlinux.o to check for section mismatches
 ${MAKE} -f "${srctree}/scripts/Makefile.modpost" vmlinux.o
 
+if [ -n "${CONFIG_LTO_CLANG}" ]; then
+	# Re-use vmlinux.o, so we can avoid the slow LTO link step in
+	# vmlinux_link
+	KBUILD_VMLINUX_INIT=
+	KBUILD_VMLINUX_MAIN=vmlinux.o
+	KBUILD_VMLINUX_LIBS=
+
+	# Call recordmcount if needed
+	recordmcount vmlinux.o
+fi
+
 kallsymso=""
 kallsyms_vmlinux=""
 if [ -n "${CONFIG_KALLSYMS}" ]; then
@@ -332,5 +403,10 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then
 	fi
 fi
 
+if [ -n "${CONFIG_EXYNOS_FMP_FIPS}" ]; then
+    echo '  FIPS : Generating hmac of fmp and updating vmlinux... '
+	PYTHONDONTWRITEBYTECODE=0 "${srctree}/scripts/fmp/fips_fmp_integrity.py" "${objtree}/vmlinux"
+fi
+
 # We made a new kernel - delete old version file
 rm -f .old_version