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authorFelix Fietkau <nbd@openwrt.org>2009-08-09 01:55:19 +0000
committerFelix Fietkau <nbd@openwrt.org>2009-08-09 01:55:19 +0000
commit632457f5873b26ad02fb5550eda2fc40e510d8fd (patch)
tree4edf8074de011f7b12cb4ee17ae3d84ce3b7ca92
parent88f98e238ea56f76a11d25db92ade1551c5a4e8e (diff)
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backport fixed module exports patch to 2.6.28
SVN-Revision: 17187
-rw-r--r--target/linux/generic-2.6/patches-2.6.28/027-module_exports.patch154
1 files changed, 154 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.28/027-module_exports.patch b/target/linux/generic-2.6/patches-2.6.28/027-module_exports.patch
new file mode 100644
index 0000000000..c7cf2fb231
--- /dev/null
+++ b/target/linux/generic-2.6/patches-2.6.28/027-module_exports.patch
@@ -0,0 +1,154 @@
+--- a/include/asm-generic/vmlinux.lds.h
++++ b/include/asm-generic/vmlinux.lds.h
+@@ -2,6 +2,27 @@
+ #define LOAD_OFFSET 0
+ #endif
+
++#ifndef SYMTAB_KEEP_STR
++#define SYMTAB_KEEP_STR *(__ksymtab_strings*)
++#define SYMTAB_DISCARD_STR
++#else
++#define SYMTAB_DISCARD_STR *(__ksymtab_strings*)
++#endif
++
++#ifndef SYMTAB_KEEP
++#define SYMTAB_KEEP *(__ksymtab*)
++#define SYMTAB_DISCARD
++#else
++#define SYMTAB_DISCARD *(__ksymtab*)
++#endif
++
++#ifndef SYMTAB_KEEP_GPL
++#define SYMTAB_KEEP_GPL *(__ksymtab_gpl*)
++#define SYMTAB_DISCARD_GPL
++#else
++#define SYMTAB_DISCARD_GPL *(__ksymtab_gpl*)
++#endif
++
+ #ifndef VMLINUX_SYMBOL
+ #define VMLINUX_SYMBOL(_sym_) _sym_
+ #endif
+@@ -124,35 +145,35 @@
+ /* Kernel symbol table: Normal symbols */ \
+ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start___ksymtab) = .; \
+- *(__ksymtab) \
++ SYMTAB_KEEP \
+ VMLINUX_SYMBOL(__stop___ksymtab) = .; \
+ } \
+ \
+ /* Kernel symbol table: GPL-only symbols */ \
+ __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \
+- *(__ksymtab_gpl) \
++ SYMTAB_KEEP_GPL \
+ VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
+ } \
+ \
+ /* Kernel symbol table: Normal unused symbols */ \
+ __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \
+- *(__ksymtab_unused) \
++ *(__ksymtab_unused*) \
+ VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \
+ } \
+ \
+ /* Kernel symbol table: GPL-only unused symbols */ \
+ __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \
+- *(__ksymtab_unused_gpl) \
++ *(__ksymtab_unused_gpl*) \
+ VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \
+ } \
+ \
+ /* Kernel symbol table: GPL-future-only symbols */ \
+ __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \
+- *(__ksymtab_gpl_future) \
++ *(__ksymtab_gpl_future*) \
+ VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \
+ } \
+ \
+@@ -193,7 +214,13 @@
+ \
+ /* Kernel symbol table: strings */ \
+ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
+- *(__ksymtab_strings) \
++ SYMTAB_KEEP_STR \
++ } \
++ \
++ /DISCARD/ : { \
++ *(__ksymtab.*) \
++ *(__ksymtab_gpl.*) \
++ *(__ksymtab_strings.*) \
+ } \
+ \
+ /* __*init sections */ \
+--- a/include/linux/module.h
++++ b/include/linux/module.h
+@@ -187,16 +187,24 @@ void *__symbol_get_gpl(const char *symbo
+ #define __CRC_SYMBOL(sym, sec)
+ #endif
+
++#ifdef MODULE
++#define __EXPORT_SUFFIX(sym)
++#else
++#define __EXPORT_SUFFIX(sym) "." #sym
++#endif
++
+ /* For every exported symbol, place a struct in the __ksymtab section */
+ #define __EXPORT_SYMBOL(sym, sec) \
+ extern typeof(sym) sym; \
+ __CRC_SYMBOL(sym, sec) \
+ static const char __kstrtab_##sym[] \
+- __attribute__((section("__ksymtab_strings"), aligned(1))) \
++ __attribute__((section("__ksymtab_strings" \
++ __EXPORT_SUFFIX(sym)), aligned(1))) \
+ = MODULE_SYMBOL_PREFIX #sym; \
+ static const struct kernel_symbol __ksymtab_##sym \
+ __used \
+- __attribute__((section("__ksymtab" sec), unused)) \
++ __attribute__((section("__ksymtab" sec \
++ __EXPORT_SUFFIX(sym)), unused)) \
+ = { (unsigned long)&sym, __kstrtab_##sym }
+
+ #define EXPORT_SYMBOL(sym) \
+--- a/Makefile
++++ b/Makefile
+@@ -963,7 +963,7 @@ prepare: prepare0
+ # Leave this as default for preprocessing vmlinux.lds.S, which is now
+ # done in arch/$(ARCH)/kernel/Makefile
+
+-export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
++export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) $(EXTRA_LDSFLAGS)
+
+ # The asm symlink changes when $(ARCH) changes.
+ # Detect this and ask user to run make mrproper
+--- a/arch/powerpc/kernel/vmlinux.lds.S
++++ b/arch/powerpc/kernel/vmlinux.lds.S
+@@ -37,12 +37,6 @@ jiffies = jiffies_64 + 4;
+ #endif
+ SECTIONS
+ {
+- /* Sections to be discarded. */
+- /DISCARD/ : {
+- *(.exitcall.exit)
+- EXIT_DATA
+- }
+-
+ . = KERNELBASE;
+
+ /*
+@@ -290,6 +284,12 @@ SECTIONS
+ __bss_stop = .;
+ }
+
++ /* Sections to be discarded. */
++ /DISCARD/ : {
++ *(.exitcall.exit)
++ EXIT_DATA
++ }
++
+ . = ALIGN(PAGE_SIZE);
+ _end = . ;
+ PROVIDE32 (end = .);