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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001# SPDX-License-Identifier: GPL-2.0
Chris Zankel5a0015d2005-06-23 22:01:16 -07002#
3# Makefile for the Linux/Xtensa kernel.
4#
5
6extra-y := head.o vmlinux.lds
7
Christoph Hellwig0f665b92019-10-29 10:53:30 +01008obj-y := align.o coprocessor.o entry.o irq.o platform.o process.o \
Max Filippov3e4196a2013-04-15 09:20:48 +04009 ptrace.o setup.o signal.o stacktrace.o syscall.o time.o traps.o \
10 vectors.o
Chris Zankel5a0015d2005-06-23 22:01:16 -070011
Christoph Hellwig0f665b92019-10-29 10:53:30 +010012obj-$(CONFIG_MMU) += pci-dma.o
Chris Zankel5a0015d2005-06-23 22:01:16 -070013obj-$(CONFIG_PCI) += pci.o
14obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o
Max Filippov478ba612013-05-24 07:02:25 +040015obj-$(CONFIG_FUNCTION_TRACER) += mcount.o
Max Filippovf6151362013-10-17 02:42:26 +040016obj-$(CONFIG_SMP) += smp.o mxhead.o
Max Filippov9bd46da2015-06-14 01:41:25 +030017obj-$(CONFIG_XTENSA_VARIANT_HAVE_PERF_EVENTS) += perf_event.o
Max Filippovc91e02b2016-01-24 10:32:10 +030018obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
Max Filippov3863c582016-11-16 15:02:29 -080019obj-$(CONFIG_S32C1I_SELFTEST) += s32c1i_selftest.o
Max Filippov64711f92018-12-19 19:48:37 -080020obj-$(CONFIG_JUMP_LABEL) += jump_label.o
Chris Zankel5a0015d2005-06-23 22:01:16 -070021
Chris Zankel78f3cdf2009-04-21 00:34:15 -070022# In the Xtensa architecture, assembly generates literals which must always
23# precede the L32R instruction with a relative offset less than 256 kB.
24# Therefore, the .text and .literal section must be combined in parenthesis
25# in the linker script, such as: *(.literal .text).
26#
27# We need to post-process the generated vmlinux.lds scripts to convert
28# *(xxx.text) to *(xxx.literal xxx.text) for the following text sections:
29# .text .ref.text .*init.text .*exit.text .text.*
30#
31# Replicate rules in scripts/Makefile.build
Chris Zankel5a0015d2005-06-23 22:01:16 -070032
Max Filippov895fb312015-08-21 20:43:44 +030033sed-y = -e ':a; s/\*(\([^)]*\)\.text\.unlikely/*(\1.literal.unlikely .{text}.unlikely/; ta; ' \
34 -e ':b; s/\*(\([^)]*\)\.text\(\.[a-z]*\)/*(\1.{text}\2.literal .{text}\2/; tb; ' \
35 -e ':c; s/\*(\([^)]*\)\(\.[a-z]*it\|\.ref\)\.text/*(\1\2.literal \2.{text}/; tc; ' \
36 -e ':d; s/\*(\([^)]\+ \|\)\.text/*(\1.literal .{text}/; td; ' \
37 -e 's/\.{text}/.text/g'
Chris Zankel78f3cdf2009-04-21 00:34:15 -070038
39quiet_cmd__cpp_lds_S = LDS $@
Nadav Amit35e76b92018-10-03 14:30:51 -070040cmd__cpp_lds_S = $(CPP) $(cpp_flags) -P -C -Uxtensa -D__ASSEMBLY__ \
41 -DLINKER_SCRIPT $< | sed $(sed-y) >$@
Chris Zankel78f3cdf2009-04-21 00:34:15 -070042
43$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE
44 $(call if_changed_dep,_cpp_lds_S)