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linuxkm/Kbuild: refactor RENAME_PIE_TEXT_AND_DATA_SECTIONS to automatically derive the list of all ELF sections to rename, rather than enumerating them staticly in the objcopy recipe (motivated by changes expected in kernel 6.19).

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Daniel Pouzzner
2025-10-18 12:07:35 -05:00
parent a36dd35e59
commit 9881c95c46
1 changed files with 10 additions and 13 deletions
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23
linuxkm/Kbuild
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@@ -214,19 +214,16 @@ RENAME_PIE_TEXT_AND_DATA_SECTIONS := \
echo 'OK.'; \
fi; \
cd "$(obj)" || exit $$?; \
for file in $(WOLFCRYPT_PIE_FILES); do \
$(OBJCOPY) --rename-section .text=.text_wolfcrypt \
--rename-section .text.unlikely=.text_wolfcrypt \
--rename-section .rodata=.rodata_wolfcrypt \
--rename-section .rodata.str1.1=.rodata_wolfcrypt \
--rename-section .rodata.str1.8=.rodata_wolfcrypt \
--rename-section .rodata.cst16=.rodata_wolfcrypt \
--rename-section .rodata.cst32=.rodata_wolfcrypt \
--rename-section .data=.data_wolfcrypt \
--rename-section .data.rel.local=.data_wolfcrypt \
--rename-section .bss=.bss_wolfcrypt "$$file" || exit $$?; \
done; \
[ "$(KERNEL_ARCH_X86)" != "yes" ] || \
for file in $(WOLFCRYPT_PIE_FILES); do \
$(OBJCOPY) $$($(READELF) --sections --wide "$$file" | \
$(AWK) ' \
{ \
if (match($$0, "^ *\\[ *[0-9]+\\] +\\.(text|rodata|data|bss)(\\.[^ ]+)? ", a)) { \
printf("--rename-section .%s%s=.%s_wolfcrypt ", a[1], a[2], a[1]); \
} \
}') "$$file" || exit $$?; \
done; \
[ "$(KERNEL_ARCH_X86)" != "yes" ] || \
{ $(READELF) --sections --syms --wide $(WOLFCRYPT_PIE_FILES) | \
$(AWK) -v obj="$(obj)" ' \
/^File:/ { \