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@xxxxxxxxx>
Fixes: 23121ca2b56b ("kbuild: create/adjust generated/autoksyms.h")
Cc: Nicolas Pitre <nico@xxxxxxxxxx>
Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
---
Hi Nicolas,
I found this issue while running on today's Linux-next with my ARM
cross-compiler.
I suspect it's the proper way to fix the issue but I may miss some of the
details of the top kernel Makefile.
It does work for my separated output directory setup and I verified it still
compiles an in-sources setup as well (even if it's obvious...).
Bye,
Makefile | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile
index c3937c5ae3b8..1c26b410ba7b 100644
--- a/Makefile
+++ b/Makefile
@@ -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
--
2.1.3
--
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