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dde_linux/extract_initcall_order: support v5.12

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This patch adjusts the 'extract_initcall_order' utility to the changed
initcall symbol syntax introduced in Linux by the following commit:

   https://github.com/torvalds/linux/commit/a8cccdd9

It uses an additional sed step to strip away the kmod prefix,
__COUNTER__, and __LINE__ information so that the symbol names match
those of earlier kernel versions.

Issue #4188
This commit is contained in:
Norman Feske 2021-06-07 11:51:23 +02:00 committed by Christian Helmuth
parent f541668604
commit e5600fea06
1 changed files with 10 additions and 1 deletions
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11
tool/dde_linux/extract_initcall_order
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@ -62,7 +62,16 @@ echo " \"END_OF_INITCALL_ORDER_ARRAY_DUMMY_ENTRY\"" >> $(1);
echo "};" >> $(1);
endef
INITCALLS = $(shell grep -i "^[0-9a-f]* [t] __initcall_" $(LINUX_KERNEL_DIR)/System.map | awk '{print $$3}')
#
# Linux 5.12 upwards generates data symbols featuring an '__initcall_id'
# including a counter value and __LINE__ information. Discard this information
# when collecting the 'lx_emul_initcall_order'.
#
strip_kmod_prefix = sed "s/__initcall__.*__[0-9]\+_[0-9]\+/__initcall/"
INITCALLS = $(shell grep -i "^[0-9a-f]* [td] __initcall_" $(LINUX_KERNEL_DIR)/System.map |\
$(strip_kmod_prefix) |\
awk '{print $$3}')
extract:
@$(call print_file_header,$(shell date +"%F"),$(HEADER_FILE))