blob: 91907590d183fd8385d5182c53df18c1cfec4cd0 [file] [log] [blame]
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
Max Filippov3e4196a2013-04-15 09:20:48 +04008obj-y := align.o coprocessor.o entry.o irq.o pci-dma.o platform.o process.o \
9 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
Chris Zankel5a0015d2005-06-23 22:01:16 -070012obj-$(CONFIG_PCI) += pci.o
13obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o
Max Filippov478ba612013-05-24 07:02:25 +040014obj-$(CONFIG_FUNCTION_TRACER) += mcount.o
Max Filippovf6151362013-10-17 02:42:26 +040015obj-$(CONFIG_SMP) += smp.o mxhead.o
Max Filippov9bd46da2015-06-14 01:41:25 +030016obj-$(CONFIG_XTENSA_VARIANT_HAVE_PERF_EVENTS) += perf_event.o
Max Filippovc91e02b2016-01-24 10:32:10 +030017obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
Max Filippov3863c582016-11-16 15:02:29 -080018obj-$(CONFIG_S32C1I_SELFTEST) += s32c1i_selftest.o
Chris Zankel5a0015d2005-06-23 22:01:16 -070019
Chris Zankel78f3cdf2009-04-21 00:34:15 -070020# In the Xtensa architecture, assembly generates literals which must always
21# precede the L32R instruction with a relative offset less than 256 kB.
22# Therefore, the .text and .literal section must be combined in parenthesis
23# in the linker script, such as: *(.literal .text).
24#
25# We need to post-process the generated vmlinux.lds scripts to convert
26# *(xxx.text) to *(xxx.literal xxx.text) for the following text sections:
27# .text .ref.text .*init.text .*exit.text .text.*
28#
29# Replicate rules in scripts/Makefile.build
Chris Zankel5a0015d2005-06-23 22:01:16 -070030
Max Filippov895fb312015-08-21 20:43:44 +030031sed-y = -e ':a; s/\*(\([^)]*\)\.text\.unlikely/*(\1.literal.unlikely .{text}.unlikely/; ta; ' \
32 -e ':b; s/\*(\([^)]*\)\.text\(\.[a-z]*\)/*(\1.{text}\2.literal .{text}\2/; tb; ' \
33 -e ':c; s/\*(\([^)]*\)\(\.[a-z]*it\|\.ref\)\.text/*(\1\2.literal \2.{text}/; tc; ' \
34 -e ':d; s/\*(\([^)]\+ \|\)\.text/*(\1.literal .{text}/; td; ' \
35 -e 's/\.{text}/.text/g'
Chris Zankel78f3cdf2009-04-21 00:34:15 -070036
37quiet_cmd__cpp_lds_S = LDS $@
Chris Zankelc4c45942012-11-28 16:53:51 -080038cmd__cpp_lds_S = $(CPP) $(cpp_flags) -P -C -Uxtensa -D__ASSEMBLY__ $< \
39 | sed $(sed-y) >$@
Chris Zankel78f3cdf2009-04-21 00:34:15 -070040
41$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE
42 $(call if_changed_dep,_cpp_lds_S)