diff options
Diffstat (limited to 'target/linux/generic/hack-5.10/221-module_exports.patch')
| -rw-r--r-- | target/linux/generic/hack-5.10/221-module_exports.patch | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/target/linux/generic/hack-5.10/221-module_exports.patch b/target/linux/generic/hack-5.10/221-module_exports.patch deleted file mode 100644 index 8525e76486..0000000000 --- a/target/linux/generic/hack-5.10/221-module_exports.patch +++ /dev/null @@ -1,126 +0,0 @@ -From b14784e7883390c20ed3ff904892255404a5914b Mon Sep 17 00:00:00 2001 -From: Felix Fietkau <nbd@nbd.name> -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 <nbd@nbd.name> ---- - 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 . to a 8 byte boundary equals to maximum function alignment. */ - #define ALIGN_FUNCTION() . = ALIGN(8) - -@@ -474,14 +484,14 @@ - /* 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 = .; \ - } \ - \ -@@ -543,7 +553,7 @@ - \ - /* Kernel symbol table: strings */ \ - __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ -- *(__ksymtab_strings) \ -+ *(__ksymtab_strings+*) \ - } \ - \ - /* __*init sections */ \ -@@ -1024,6 +1034,8 @@ - - #define COMMON_DISCARDS \ - SANITIZER_DISCARDS \ -+ SYMTAB_DISCARD \ -+ SYMTAB_DISCARD_GPL \ - *(.discard) \ - *(.discard.*) \ - *(.modinfo) \ ---- a/include/linux/export.h -+++ b/include/linux/export.h -@@ -82,6 +82,12 @@ struct kernel_symbol { - - #else - -+#ifdef MODULE -+#define __EXPORT_SUFFIX(sym) -+#else -+#define __EXPORT_SUFFIX(sym) "+" #sym -+#endif -+ - /* - * For every exported symbol, do the following: - * -@@ -99,7 +105,7 @@ struct kernel_symbol { - extern const char __kstrtab_##sym[]; \ - extern const char __kstrtabns_##sym[]; \ - __CRC_SYMBOL(sym, sec); \ -- asm(" .section \"__ksymtab_strings\",\"aMS\",%progbits,1 \n" \ -+ asm(" .section \"__ksymtab_strings" __EXPORT_SUFFIX(sym) "\",\"aMS\",%progbits,1 \n" \ - "__kstrtab_" #sym ": \n" \ - " .asciz \"" #sym "\" \n" \ - "__kstrtabns_" #sym ": \n" \ ---- a/include/asm-generic/export.h -+++ b/include/asm-generic/export.h -@@ -26,6 +26,12 @@ - #endif - .endm - -+#ifdef MODULE -+#define __EXPORT_SUFFIX(name) -+#else -+#define __EXPORT_SUFFIX(name) + #name -+#endif -+ - /* - * note on .section use: we specify progbits since usage of the "M" (SHF_MERGE) - * section flag requires it. Use '%progbits' instead of '@progbits' since the -@@ -39,7 +45,7 @@ - __ksymtab_\name: - __put \val, __kstrtab_\name - .previous -- .section __ksymtab_strings,"aMS",%progbits,1 -+ .section __ksymtab_strings __EXPORT_SUFFIX(name),"aMS",%progbits,1 - __kstrtab_\name: - .asciz "\name" - .previous ---- a/scripts/Makefile.build -+++ b/scripts/Makefile.build -@@ -373,7 +373,7 @@ targets += $(lib-y) $(always-y) $(MAKECM - # 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 |