Merge 4.14.77 into android-4.14-p

[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / scripts / Makefile.build

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index bda756f438f1e9f5051c5aa2d5fc1330eb11af74..b5b05f1157755549c2c295c63151cf29340d6be2 100644 (file)
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -246,6 +246,12 @@ ifdef BUILD_C_RECORDMCOUNT
 ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
   RECORDMCOUNT_FLAGS = -w
 endif
+
+ifdef CONFIG_LTO_CLANG
+# With LTO, we postpone running recordmcount until after the LTO link step, so
+# let's export the parameters for the link script.
+export RECORDMCOUNT_FLAGS
+else
 # Due to recursion, we must skip empty.o.
 # The empty.o file is created in the make process in order to determine
 # the target endianness and word size. It is made before all other C
@@ -254,22 +260,28 @@ sub_cmd_record_mcount =                                   \
        if [ $(@) != "scripts/mod/empty.o" ]; then      \
                $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)";   \
        fi;
+endif
+
 recordmcount_source := $(srctree)/scripts/recordmcount.c \
                    $(srctree)/scripts/recordmcount.h
-else
+else # !BUILD_C_RECORDMCOUNT
 sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
        "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
        "$(if $(CONFIG_64BIT),64,32)" \
        "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
        "$(LD)" "$(NM)" "$(RM)" "$(MV)" \
        "$(if $(part-of-module),1,0)" "$(@)";
+
 recordmcount_source := $(srctree)/scripts/recordmcount.pl
 endif # BUILD_C_RECORDMCOUNT
+
+ifndef CONFIG_LTO_CLANG
 cmd_record_mcount =                                            \
        if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" =   \
             "$(CC_FLAGS_FTRACE)" ]; then                       \
                $(sub_cmd_record_mcount)                        \
        fi;
+endif
 endif # CONFIG_FTRACE_MCOUNT_RECORD
 
 ifdef CONFIG_STACK_VALIDATION