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dd14c53c14
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17684 3c298f89-4303-0410-b956-a3cf2f4a3e73
46 lines
1.7 KiB
Diff
46 lines
1.7 KiB
Diff
commit 67dac695a1f33716f3e35c2292e7391410d58751
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Author: Paul Bolle <pebolle@tiscali.nl>
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Date: Sun Sep 6 14:36:01 2009 +0200
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um: add work around for build problems with bash 4
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Building User Mode Linux fails with bash 4. The UML Makefiles use an
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environment variable called CPPFLAGS_vmlinux.lds but bash 4 does not
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export environment variables with a dot in their name. Add a hack to
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allow building UML with bash 4 (which should not affect other shells).
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Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
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--- a/arch/um/Makefile
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+++ b/arch/um/Makefile
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@@ -99,9 +99,6 @@ CFLAGS_NO_HARDENING := $(call cc-option,
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CONFIG_KERNEL_STACK_ORDER ?= 2
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STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
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-CPPFLAGS_vmlinux.lds = -U$(SUBARCH) -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
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- -DELF_FORMAT="$(ELF_FORMAT)" -DKERNEL_STACK_SIZE=$(STACK_SIZE)
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-
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# The wrappers will select whether using "malloc" or the kernel allocator.
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LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
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@@ -152,4 +149,5 @@ $(SHARED_HEADERS)/kern_constants.h:
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$(Q)mkdir -p $(dir $@)
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$(Q)echo '#include "../../../../include/asm/asm-offsets.h"' >$@
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-export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH
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+export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH \
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+ ELF_ARCH ELF_FORMAT STACK_SIZE START
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--- a/arch/um/kernel/Makefile
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+++ b/arch/um/kernel/Makefile
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@@ -3,6 +3,10 @@
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# Licensed under the GPL
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#
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+CPPFLAGS_vmlinux.lds = -P -C -U$(ARCH) -U$(SUBARCH) -DSTART=$(START) \
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+ -DELF_ARCH=$(ELF_ARCH) -DELF_FORMAT="$(ELF_FORMAT)" \
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+ -DKERNEL_STACK_SIZE=$(STACK_SIZE)
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+
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extra-y := vmlinux.lds
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clean-files :=
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