From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- arch/xtensa/kernel/Makefile | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/xtensa/kernel/Makefile (limited to 'arch/xtensa/kernel/Makefile') diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile new file mode 100644 index 000000000..d3a0f0fd5 --- /dev/null +++ b/arch/xtensa/kernel/Makefile @@ -0,0 +1,40 @@ +# +# Makefile for the Linux/Xtensa kernel. +# + +extra-y := head.o vmlinux.lds + +obj-y := align.o coprocessor.o entry.o irq.o pci-dma.o platform.o process.o \ + ptrace.o setup.o signal.o stacktrace.o syscall.o time.o traps.o \ + vectors.o + +obj-$(CONFIG_KGDB) += xtensa-stub.o +obj-$(CONFIG_PCI) += pci.o +obj-$(CONFIG_MODULES) += xtensa_ksyms.o module.o +obj-$(CONFIG_FUNCTION_TRACER) += mcount.o +obj-$(CONFIG_SMP) += smp.o mxhead.o + +AFLAGS_head.o += -mtext-section-literals + +# In the Xtensa architecture, assembly generates literals which must always +# precede the L32R instruction with a relative offset less than 256 kB. +# Therefore, the .text and .literal section must be combined in parenthesis +# in the linker script, such as: *(.literal .text). +# +# We need to post-process the generated vmlinux.lds scripts to convert +# *(xxx.text) to *(xxx.literal xxx.text) for the following text sections: +# .text .ref.text .*init.text .*exit.text .text.* +# +# Replicate rules in scripts/Makefile.build + +sed-y = -e 's/\*(\(\.[a-z]*it\|\.ref\|\)\.text)/*(\1.literal \1.text)/g' \ + -e 's/\.text\.unlikely/.literal.unlikely .text.unlikely/g' \ + -e 's/\*(\(\.text .*\))/*(.literal \1)/g' \ + -e 's/\*(\(\.text\.[a-z]*\))/*(\1.literal \1)/g' + +quiet_cmd__cpp_lds_S = LDS $@ +cmd__cpp_lds_S = $(CPP) $(cpp_flags) -P -C -Uxtensa -D__ASSEMBLY__ $< \ + | sed $(sed-y) >$@ + +$(obj)/vmlinux.lds: $(src)/vmlinux.lds.S FORCE + $(call if_changed_dep,_cpp_lds_S) -- cgit v1.2.3-54-g00ecf