15a0015d6SChris Zankel# 25a0015d6SChris Zankel# Makefile for the Linux/Xtensa kernel. 35a0015d6SChris Zankel# 45a0015d6SChris Zankel 55a0015d6SChris Zankelextra-y := head.o vmlinux.lds 65a0015d6SChris Zankel 764ac24e7SMatthew Wilcoxobj-y := align.o entry.o irq.o coprocessor.o process.o ptrace.o \ 81c0350bdSChris Zankel setup.o signal.o syscall.o time.o traps.o vectors.o platform.o \ 9787a22d1SChris Zankel pci-dma.o init_task.o io.o 105a0015d6SChris Zankel 115a0015d6SChris Zankelobj-$(CONFIG_KGDB) += xtensa-stub.o 125a0015d6SChris Zankelobj-$(CONFIG_PCI) += pci.o 135a0015d6SChris Zankelobj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o 145a0015d6SChris Zankel 15*78f3cdfaSChris Zankel# In the Xtensa architecture, assembly generates literals which must always 16*78f3cdfaSChris Zankel# precede the L32R instruction with a relative offset less than 256 kB. 17*78f3cdfaSChris Zankel# Therefore, the .text and .literal section must be combined in parenthesis 18*78f3cdfaSChris Zankel# in the linker script, such as: *(.literal .text). 19*78f3cdfaSChris Zankel# 20*78f3cdfaSChris Zankel# We need to post-process the generated vmlinux.lds scripts to convert 21*78f3cdfaSChris Zankel# *(xxx.text) to *(xxx.literal xxx.text) for the following text sections: 22*78f3cdfaSChris Zankel# .text .ref.text .*init.text .*exit.text .text.* 23*78f3cdfaSChris Zankel# 24*78f3cdfaSChris Zankel# Replicate rules in scripts/Makefile.build 255a0015d6SChris Zankel 26*78f3cdfaSChris Zankelsed-y = -e 's/(\(\.[a-z]*it\|\.ref\|\)\.text)/(\1.literal \1.text)/g' \ 27*78f3cdfaSChris Zankel -e 's/(\(\.text\.[a-z]*\))/(\1.literal \1)/g' 28*78f3cdfaSChris Zankel 29*78f3cdfaSChris Zankelquiet_cmd__cpp_lds_S = LDS $@ 30*78f3cdfaSChris Zankel cmd__cpp_lds_S = $(CPP) $(cpp_flags) -D__ASSEMBLY__ $< | sed $(sed-y) >$@ 31*78f3cdfaSChris Zankel 32*78f3cdfaSChris Zankel$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE 33*78f3cdfaSChris Zankel $(call if_changed_dep,_cpp_lds_S) 34