summaryrefslogtreecommitdiff
path: root/target/linux/generic/patches-3.3/220-module_exports.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic/patches-3.3/220-module_exports.patch')
-rw-r--r--target/linux/generic/patches-3.3/220-module_exports.patch89
1 files changed, 89 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/220-module_exports.patch b/target/linux/generic/patches-3.3/220-module_exports.patch
new file mode 100644
index 0000000..be6b6ff
--- /dev/null
+++ b/target/linux/generic/patches-3.3/220-module_exports.patch
@@ -0,0 +1,89 @@
+--- a/include/asm-generic/vmlinux.lds.h
++++ b/include/asm-generic/vmlinux.lds.h
+@@ -52,6 +52,27 @@
+ #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 *(SORT(___ksymtab+*))
++#define SYMTAB_DISCARD
++#else
++#define SYMTAB_DISCARD *(SORT(___ksymtab+*))
++#endif
++
++#ifndef SYMTAB_KEEP_GPL
++#define SYMTAB_KEEP_GPL *(SORT(___ksymtab_gpl+*))
++#define SYMTAB_DISCARD_GPL
++#else
++#define SYMTAB_DISCARD_GPL *(SORT(___ksymtab_gpl+*))
++#endif
++
+ #ifndef SYMBOL_PREFIX
+ #define VMLINUX_SYMBOL(sym) sym
+ #else
+@@ -275,14 +296,14 @@
+ /* Kernel symbol table: Normal symbols */ \
+ __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \
+ VMLINUX_SYMBOL(__start___ksymtab) = .; \
+- *(SORT(___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) = .; \
+- *(SORT(___ksymtab_gpl+*)) \
++ SYMTAB_KEEP_GPL \
+ VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \
+ } \
+ \
+@@ -344,7 +365,7 @@
+ \
+ /* Kernel symbol table: strings */ \
+ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
+- *(__ksymtab_strings) \
++ SYMTAB_KEEP_STR \
+ } \
+ \
+ /* __*init sections */ \
+@@ -676,6 +697,9 @@
+ EXIT_TEXT \
+ EXIT_DATA \
+ EXIT_CALL \
++ SYMTAB_DISCARD \
++ SYMTAB_DISCARD_GPL \
++ SYMTAB_DISCARD_STR \
+ *(.discard) \
+ *(.discard.*) \
+ }
+--- a/include/linux/export.h
++++ b/include/linux/export.h
+@@ -45,12 +45,19 @@ extern struct module __this_module;
+ #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 \