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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001# SPDX-License-Identifier: GPL-2.0
Richard Kuoe95bf452011-10-31 18:55:58 -05002# Makefile for the Hexagon arch
3
4KBUILD_DEFCONFIG = comet_defconfig
5
6# Do not use GP-relative jumps
7KBUILD_CFLAGS += -G0
8LDFLAGS_vmlinux += -G0
9
10# Do not use single-byte enums; these will overflow.
11KBUILD_CFLAGS += -fno-short-enums
12
13# Modules must use either long-calls, or use pic/plt.
14# Use long-calls for now, it's easier. And faster.
Cao jin3a5befc2017-10-09 15:11:47 +080015# KBUILD_CFLAGS_MODULE += -fPIC
16# KBUILD_LDFLAGS_MODULE += -shared
17KBUILD_CFLAGS_MODULE += -mlong-calls
Richard Kuoe95bf452011-10-31 18:55:58 -050018
Richard Kuo66b03db2012-03-27 17:37:33 -050019cflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
20aflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
21ldflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
Richard Kuoe95bf452011-10-31 18:55:58 -050022
23KBUILD_CFLAGS += $(cflags-y)
24KBUILD_AFLAGS += $(aflags-y)
Masahiro Yamadad503ac52018-08-24 08:20:39 +090025KBUILD_LDFLAGS += $(ldflags-y)
Richard Kuoe95bf452011-10-31 18:55:58 -050026
27# Thread-info register will be r19. This value is not configureable;
28# it is hard-coded in several files.
29TIR_NAME := r19
30KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
31KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
32
33LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
34libs-y += $(LIBGCC)
35
Thomas Gleixnere336e052012-05-03 09:02:54 +000036head-y := arch/hexagon/kernel/head.o
Richard Kuoe95bf452011-10-31 18:55:58 -050037
38core-y += arch/hexagon/kernel/ \
39 arch/hexagon/mm/ \
40 arch/hexagon/lib/