xref: /openbmc/linux/arch/hexagon/Makefile (revision f3539c12)
1#  Makefile for the Hexagon arch
2
3KBUILD_DEFCONFIG = comet_defconfig
4
5# Do not use GP-relative jumps
6KBUILD_CFLAGS += -G0
7LDFLAGS_vmlinux += -G0
8
9# Do not use single-byte enums; these will overflow.
10KBUILD_CFLAGS += -fno-short-enums
11
12# Modules must use either long-calls, or use pic/plt.
13# Use long-calls for now, it's easier.  And faster.
14# CFLAGS_MODULE += -fPIC
15# LDFLAGS_MODULE += -shared
16CFLAGS_MODULE += -mlong-calls
17
18cflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
19aflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
20ldflags-y += $(call cc-option,-mv${CONFIG_HEXAGON_ARCH_VERSION})
21
22KBUILD_CFLAGS += $(cflags-y)
23KBUILD_AFLAGS += $(aflags-y)
24
25#  no KBUILD_LDFLAGS?
26LDFLAGS += $(ldflags-y)
27
28# Thread-info register will be r19.  This value is not configureable;
29# it is hard-coded in several files.
30TIR_NAME := r19
31KBUILD_CFLAGS += -ffixed-$(TIR_NAME) -DTHREADINFO_REG=$(TIR_NAME) -D__linux__
32KBUILD_AFLAGS += -DTHREADINFO_REG=$(TIR_NAME)
33
34LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
35libs-y += $(LIBGCC)
36
37head-y := arch/hexagon/kernel/head.o
38
39core-y += arch/hexagon/kernel/ \
40	arch/hexagon/mm/ \
41	arch/hexagon/lib/
42