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kernel-build: fix STRIP_KERNEL_EXPORTS for 64-bit kernels

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While parsing the nm output, we need to account for the fact that 64-bit kernels
have 64-bit wide addresses. While at it, replace the grep | sed combo with a
single awk invocation and a stronger regex.

Fixes: 2ef0acc5fc "kernel-build: fix
STRIP_KERNEL_EXPORTS for recent kernels"

Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
This commit is contained in:
Rui Salvaterra
2020-12-30 20:04:42 +00:00
committed by Hauke Mehrtens
parent 59b5c52a6b
commit f3bfff9d7f
1 changed files with 1 additions and 1 deletions
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2
include/kernel-build.mk
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@@ -105,7 +105,7 @@ define BuildKernel
xargs $(TARGET_CROSS)nm | \ xargs $(TARGET_CROSS)nm | \
awk '$$$$1 == "U" { print $$$$2 } ' | \ awk '$$$$1 == "U" { print $$$$2 } ' | \
sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
$(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' [rR] __ksymtab' | sed -e 's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | awk '/^[0-9a-f]+ [rR] __ksymtab_/ {print substr($$$$3,11)}' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
( \ ( \