1#
2# Makefile for the Linux/Xtensa kernel.
3#
4
5extra-y := head.o vmlinux.lds
6
7obj-y := align.o entry.o irq.o coprocessor.o process.o ptrace.o \
8	 setup.o signal.o syscall.o time.o traps.o vectors.o platform.o  \
9	 pci-dma.o init_task.o io.o
10
11obj-$(CONFIG_KGDB) += xtensa-stub.o
12obj-$(CONFIG_PCI) += pci.o
13obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o
14
15# In the Xtensa architecture, assembly generates literals which must always
16# precede the L32R instruction with a relative offset less than 256 kB.
17# Therefore, the .text and .literal section must be combined in parenthesis
18# in the linker script, such as: *(.literal .text).
19#
20# We need to post-process the generated vmlinux.lds scripts to convert
21# *(xxx.text) to  *(xxx.literal xxx.text) for the following text sections:
22#   .text .ref.text .*init.text .*exit.text .text.*
23#
24# Replicate rules in scripts/Makefile.build
25
26sed-y = -e 's/\*(\(\.[a-z]*it\|\.ref\|\)\.text)/*(\1.literal \1.text)/g'    \
27	-e 's/\.text\.unlikely/.literal.unlikely .text.unlikely/g' \
28	-e 's/\*(\(\.text\.[a-z]*\))/*(\1.literal \1)/g'
29
30quiet_cmd__cpp_lds_S = LDS     $@
31      cmd__cpp_lds_S = $(CPP) $(cpp_flags) -P -C -Uxtensa -D__ASSEMBLY__ $< \
32                       | sed $(sed-y) >$@
33
34$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE
35	$(call if_changed_dep,_cpp_lds_S)
36