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authorNicolas Pitre <nicolas.pitre@linaro.org>2016-04-28 17:29:42 -0400
committerMichal Marek <mmarek@suse.com>2016-05-10 17:24:15 +0200
commitf110e0fec89935879a76aebe1726dce3fcb6ab13 (patch)
tree04c8cca7d820a8ee1fd798041d4568aa830d8497 /scripts/Kbuild.include
parente72e2dfe7c16ffbfbabf9cb24adc6d9f93a4fe37 (diff)
downloadlwn-f110e0fec89935879a76aebe1726dce3fcb6ab13.tar.gz
lwn-f110e0fec89935879a76aebe1726dce3fcb6ab13.zip
kbuild: fix ksym_dep_filter when multiple EXPORT_SYMBOL() on the same line
In kernel/cgroup.c there is: #define SUBSYS(_x) \ DEFINE_STATIC_KEY_TRUE(_x ## _cgrp_subsys_enabled_key); \ DEFINE_STATIC_KEY_TRUE(_x ## _cgrp_subsys_on_dfl_key); \ EXPORT_SYMBOL_GPL(_x ## _cgrp_subsys_enabled_key); \ EXPORT_SYMBOL_GPL(_x ## _cgrp_subsys_on_dfl_key); The expansion of this macro causes multiple EXPORT_SYMBOL_GPL() instances to appear on the same preprocessor line output, confusing the sed script expecting only one of them per line. Unfortunately this can't be fixed nicely in the sed script as sed's regexp can't do non greedy matching. Fix this by turning any semicolon into a line break before filtering. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Michal Marek <mmarek@suse.com>
Diffstat (limited to 'scripts/Kbuild.include')
-rw-r--r--scripts/Kbuild.include2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 36e9475395aa..1f0d41cc73d1 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -281,7 +281,7 @@ ksym_dep_filter = \
$(CPP) $(call flags_nodeps,a_flags) -D__KSYM_DEPS__ $< ;; \
boot*|build*|*cpp_lds_S|dtc|host*|vdso*) : ;; \
*) echo "Don't know how to preprocess $(1)" >&2; false ;; \
- esac | sed -rn 's/^.*=== __KSYM_(.*) ===.*$$/KSYM_\1/p'
+ esac | tr ";" "\n" | sed -rn 's/^.*=== __KSYM_(.*) ===.*$$/KSYM_\1/p'
cmd_and_fixdep = \
$(echo-cmd) $(cmd_$(1)); \