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# .text .ref.text .*init.text .*exit.text .text.* 22# 23# Replicate rules in scripts/Makefile.build 24 25sed-y = -e 's/\*(\(\.[a-z]*it\|\.ref\|\)\.text)/*(\1.literal \1.text)/g' \ 26 -e 's/\*(\(\.text\.[a-z]*\))/*(\1.literal \1)/g' 27 28quiet_cmd__cpp_lds_S = LDS $@ 29 cmd__cpp_lds_S = $(CPP) $(cpp_flags) -P -C -Uxtensa -D__ASSEMBLY__ $< \ 30 | sed $(sed-y) >$@ 31 32$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE 33 $(call if_changed_dep,_cpp_lds_S) 34