1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0 25a0015d6SChris Zankel# 35a0015d6SChris Zankel# Makefile for the Linux/Xtensa kernel. 45a0015d6SChris Zankel# 55a0015d6SChris Zankel 65a0015d6SChris Zankelextra-y := head.o vmlinux.lds 75a0015d6SChris Zankel 83e4196a5SMax Filippovobj-y := align.o coprocessor.o entry.o irq.o pci-dma.o platform.o process.o \ 93e4196a5SMax Filippov ptrace.o setup.o signal.o stacktrace.o syscall.o time.o traps.o \ 103e4196a5SMax Filippov vectors.o 115a0015d6SChris Zankel 125a0015d6SChris Zankelobj-$(CONFIG_PCI) += pci.o 135a0015d6SChris Zankelobj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o 14478ba61aSMax Filippovobj-$(CONFIG_FUNCTION_TRACER) += mcount.o 15f615136cSMax Filippovobj-$(CONFIG_SMP) += smp.o mxhead.o 169bd46da4SMax Filippovobj-$(CONFIG_XTENSA_VARIANT_HAVE_PERF_EVENTS) += perf_event.o 17c91e02bdSMax Filippovobj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o 183863c58cSMax Filippovobj-$(CONFIG_S32C1I_SELFTEST) += s32c1i_selftest.o 195a0015d6SChris Zankel 2078f3cdfaSChris Zankel# In the Xtensa architecture, assembly generates literals which must always 2178f3cdfaSChris Zankel# precede the L32R instruction with a relative offset less than 256 kB. 2278f3cdfaSChris Zankel# Therefore, the .text and .literal section must be combined in parenthesis 2378f3cdfaSChris Zankel# in the linker script, such as: *(.literal .text). 2478f3cdfaSChris Zankel# 2578f3cdfaSChris Zankel# We need to post-process the generated vmlinux.lds scripts to convert 2678f3cdfaSChris Zankel# *(xxx.text) to *(xxx.literal xxx.text) for the following text sections: 2778f3cdfaSChris Zankel# .text .ref.text .*init.text .*exit.text .text.* 2878f3cdfaSChris Zankel# 2978f3cdfaSChris Zankel# Replicate rules in scripts/Makefile.build 305a0015d6SChris Zankel 31895fb315SMax Filippovsed-y = -e ':a; s/\*(\([^)]*\)\.text\.unlikely/*(\1.literal.unlikely .{text}.unlikely/; ta; ' \ 32895fb315SMax Filippov -e ':b; s/\*(\([^)]*\)\.text\(\.[a-z]*\)/*(\1.{text}\2.literal .{text}\2/; tb; ' \ 33895fb315SMax Filippov -e ':c; s/\*(\([^)]*\)\(\.[a-z]*it\|\.ref\)\.text/*(\1\2.literal \2.{text}/; tc; ' \ 34895fb315SMax Filippov -e ':d; s/\*(\([^)]\+ \|\)\.text/*(\1.literal .{text}/; td; ' \ 35895fb315SMax Filippov -e 's/\.{text}/.text/g' 3678f3cdfaSChris Zankel 3778f3cdfaSChris Zankelquiet_cmd__cpp_lds_S = LDS $@ 38*35e76b99SNadav Amitcmd__cpp_lds_S = $(CPP) $(cpp_flags) -P -C -Uxtensa -D__ASSEMBLY__ \ 39*35e76b99SNadav Amit -DLINKER_SCRIPT $< | sed $(sed-y) >$@ 4078f3cdfaSChris Zankel 4178f3cdfaSChris Zankel$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE 4278f3cdfaSChris Zankel $(call if_changed_dep,_cpp_lds_S) 43