From f12179fa15d9e9b141b46f101999bdad3ba34f74 Mon Sep 17 00:00:00 2001 From: Robert Marko Date: Wed, 15 May 2024 10:57:06 +0200 Subject: [PATCH] generic: 6.6: remove kernel export stripping patch Our kernel export stripping has been broken on 6.6 from the start since upstream kernel really reworked stuff in ("kbuild: generate KSYMTAB entries by modpost") and other commits as well. So, until this is either fixed or reworked lets drop the patch as it doesnt make sense to carry it knowing its broken and it can always be easily restored. Link: https://github.com/openwrt/openwrt/pull/15498 Signed-off-by: Robert Marko --- .../generic/hack-6.6/221-module_exports.patch | 102 ------------------ 1 file changed, 102 deletions(-) delete mode 100644 target/linux/generic/hack-6.6/221-module_exports.patch diff --git a/target/linux/generic/hack-6.6/221-module_exports.patch b/target/linux/generic/hack-6.6/221-module_exports.patch deleted file mode 100644 index 294944a34b..0000000000 --- a/target/linux/generic/hack-6.6/221-module_exports.patch +++ /dev/null @@ -1,102 +0,0 @@ -From b14784e7883390c20ed3ff904892255404a5914b Mon Sep 17 00:00:00 2001 -From: Felix Fietkau -Date: Fri, 7 Jul 2017 17:05:53 +0200 -Subject: add an optional config option for stripping all unnecessary symbol exports from the kernel image - -lede-commit: bb5a40c64b7c4f4848509fa0a6625055fc9e66cc -Signed-off-by: Felix Fietkau ---- - include/asm-generic/vmlinux.lds.h | 18 +++++++++++++++--- - include/linux/export.h | 9 ++++++++- - scripts/Makefile.build | 2 +- - 3 files changed, 24 insertions(+), 5 deletions(-) - ---- a/include/asm-generic/vmlinux.lds.h -+++ b/include/asm-generic/vmlinux.lds.h -@@ -81,6 +81,16 @@ - #define RO_EXCEPTION_TABLE - #endif - -+#ifndef SYMTAB_KEEP -+#define SYMTAB_KEEP KEEP(*(SORT(___ksymtab+*))) -+#define SYMTAB_KEEP_GPL KEEP(*(SORT(___ksymtab_gpl+*))) -+#endif -+ -+#ifndef SYMTAB_DISCARD -+#define SYMTAB_DISCARD -+#define SYMTAB_DISCARD_GPL -+#endif -+ - /* Align . function alignment. */ - #define ALIGN_FUNCTION() . = ALIGN(CONFIG_FUNCTION_ALIGNMENT) - -@@ -486,14 +496,14 @@ - /* Kernel symbol table: Normal symbols */ \ - __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ - __start___ksymtab = .; \ -- KEEP(*(SORT(___ksymtab+*))) \ -+ SYMTAB_KEEP \ - __stop___ksymtab = .; \ - } \ - \ - /* Kernel symbol table: GPL-only symbols */ \ - __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ - __start___ksymtab_gpl = .; \ -- KEEP(*(SORT(___ksymtab_gpl+*))) \ -+ SYMTAB_KEEP_GPL \ - __stop___ksymtab_gpl = .; \ - } \ - \ -@@ -513,7 +523,7 @@ - \ - /* Kernel symbol table: strings */ \ - __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ -- *(__ksymtab_strings) \ -+ *(__ksymtab_strings+*) \ - } \ - \ - /* __*init sections */ \ -@@ -1000,6 +1010,8 @@ - #define COMMON_DISCARDS \ - SANITIZER_DISCARDS \ - PATCHABLE_DISCARDS \ -+ SYMTAB_DISCARD \ -+ SYMTAB_DISCARD_GPL \ - *(.discard) \ - *(.discard.*) \ - *(.export_symbol) \ ---- a/include/linux/export-internal.h -+++ b/include/linux/export-internal.h -@@ -26,6 +26,12 @@ - #define __KSYM_REF(sym) ".long " #sym - #endif - -+#ifdef MODULE -+#define __EXPORT_SUFFIX(sym) -+#else -+#define __EXPORT_SUFFIX(sym) "+" #sym -+#endif -+ - /* - * For every exported symbol, do the following: - * -@@ -38,7 +44,7 @@ - * former apparently works on all arches according to the binutils source. - */ - #define __KSYMTAB(name, sym, sec, ns) \ -- asm(" .section \"__ksymtab_strings\",\"aMS\",%progbits,1" "\n" \ -+ asm(" .section \"__ksymtab_strings" __EXPORT_SUFFIX(sym) "\",\"aMS\",%progbits,1" "\n" \ - "__kstrtab_" #name ":" "\n" \ - " .asciz \"" #name "\"" "\n" \ - "__kstrtabns_" #name ":" "\n" \ ---- a/scripts/Makefile.build -+++ b/scripts/Makefile.build -@@ -366,7 +366,7 @@ targets += $(real-dtb-y) $(lib-y) $(alwa - # Linker scripts preprocessor (.lds.S -> .lds) - # --------------------------------------------------------------------------- - quiet_cmd_cpp_lds_S = LDS $@ -- cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \ -+ cmd_cpp_lds_S = $(CPP) $(EXTRA_LDSFLAGS) $(cpp_flags) -P -U$(ARCH) \ - -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $< - - $(obj)/%.lds: $(src)/%.lds.S FORCE -- 2.30.2