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kbuild: fix call to adjust_autoksyms.sh when output directory specified 

When a different output directory is specified during the build process (with
O= or KBUILD_OUTPUT), the call to adjust_autoksyms.sh script fails with the
following error:
/bin/sh scripts/adjust_autoksyms.sh \
	  "make KBUILD_MODULES=1 -f ../Makefile autoksyms_recursive"
	  /bin/sh: scripts/adjust_autoksyms.sh: No such file or directory
	  make[2]: *** [vmlinux] Error 127
	  make[1]: *** [sub-make] Error 2
	  make: *** [__sub-make] Error 2

Using the absolute path with $(srctree) variable solves the problem.

This is in case the CONFIG_TRIM_UNUSED_KSYMS option is specified.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: 23121ca2b5 ("kbuild: create/adjust generated/autoksyms.h")
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Michal Marek <mmarek@suse.com>
This commit is contained in:
Nicolas Ferre 2016-04-25 17:55:08 +02:00 committed by Michal Marek
parent b42841b7bb
commit ba79d401f1
1 changed files with 3 additions and 3 deletions
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6
Makefile
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@ -934,7 +934,7 @@ quiet_cmd_link-vmlinux = LINK $@
# execute if the rest of the kernel build went well.
vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
ifdef CONFIG_TRIM_UNUSED_KSYMS
$(Q)$(CONFIG_SHELL) scripts/adjust_autoksyms.sh \
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
"$(MAKE) KBUILD_MODULES=1 -f $(srctree)/Makefile autoksyms_recursive"
endif
ifdef CONFIG_HEADERS_CHECK
@ -949,13 +949,13 @@ endif
+$(call if_changed,link-vmlinux)
autoksyms_recursive: $(vmlinux-deps)
$(Q)$(CONFIG_SHELL) scripts/adjust_autoksyms.sh \
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
"$(MAKE) KBUILD_MODULES=1 -f $(srctree)/Makefile autoksyms_recursive"
PHONY += autoksyms_recursive
# standalone target for easier testing
include/generated/autoksyms.h: FORCE
$(Q)$(CONFIG_SHELL) scripts/adjust_autoksyms.sh true
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh true
# Build samples along the rest of the kernel
ifdef CONFIG_SAMPLES