ARC: remove gcc mpy heuristics
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 8c0b1aa..10bc3d4 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -25,7 +25,6 @@
LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h
endif
-upto_gcc42 := $(call cc-ifversion, -le, 0402, y)
upto_gcc44 := $(call cc-ifversion, -le, 0404, y)
atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y)
atleast_gcc48 := $(call cc-ifversion, -ge, 0408, y)
@@ -60,25 +59,11 @@
# --build-id w/o "-marclinux". Default arc-elf32-ld is OK
ldflags-$(upto_gcc44) += -marclinux
-ARC_LIBGCC := -mA7
-cflags-$(CONFIG_ARC_HAS_HW_MPY) += -multcost=16
-
ifndef CONFIG_ARC_HAS_HW_MPY
cflags-y += -mno-mpy
-
-# newlib for ARC700 assumes MPY to be always present, which is generally true
-# However, if someone really doesn't want MPY, we need to use the 600 ver
-# which coupled with -mno-mpy will use mpy emulation
-# With gcc 4.4.7, -mno-mpy is enough to make any other related adjustments,
-# e.g. increased cost of MPY. With gcc 4.2.1 this had to be explicitly hinted
-
- ifeq ($(upto_gcc42),y)
- ARC_LIBGCC := -marc600
- cflags-y += -multcost=30
- endif
endif
-LIBGCC := $(shell $(CC) $(ARC_LIBGCC) $(cflags-y) --print-libgcc-file-name)
+LIBGCC := $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
# Modules with short calls might break for calls into builtin-kernel
KBUILD_CFLAGS_MODULE += -mlong-calls