add preliminary 3.14 support

[openwrt.git] / target / linux / generic / patches-3.14 / 221-module_exports.patch

diff --git a/target/linux/generic/patches-3.14/221-module_exports.patch b/target/linux/generic/patches-3.14/221-module_exports.patch
new file mode 100644 (file)
index 0000000..b538003
--- /dev/null
+++ b/target/linux/generic/patches-3.14/221-module_exports.patch
@@ -0,0 +1,88 @@
+--- a/include/asm-generic/vmlinux.lds.h
++++ b/include/asm-generic/vmlinux.lds.h
+@@ -52,6 +52,16 @@
+ #define LOAD_OFFSET 0
+ #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
++
+ #include <linux/export.h>
+ 
+ /* Align . to a 8 byte boundary equals to maximum function alignment. */
+@@ -284,14 +294,14 @@
+       /* Kernel symbol table: Normal symbols */                       \
+       __ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {         \
+               VMLINUX_SYMBOL(__start___ksymtab) = .;                  \
+-              KEEP(*(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) = .;              \
+-              KEEP(*(SORT(___ksymtab_gpl+*)))                         \
++              SYMTAB_KEEP_GPL                                         \
+               VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;               \
+       }                                                               \
+                                                                       \
+@@ -353,7 +363,7 @@
+                                                                       \
+       /* Kernel symbol table: strings */                              \
+         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {       \
+-              *(__ksymtab_strings)                                    \
++              *(__ksymtab_strings+*)                                  \
+       }                                                               \
+                                                                       \
+       /* __*init sections */                                          \
+@@ -671,6 +681,8 @@
+       EXIT_TEXT                                                       \
+       EXIT_DATA                                                       \
+       EXIT_CALL                                                       \
++      SYMTAB_DISCARD                                                  \
++      SYMTAB_DISCARD_GPL                                              \
+       *(.discard)                                                     \
+       *(.discard.*)                                                   \
+       }
+--- a/scripts/Makefile.build
++++ b/scripts/Makefile.build
+@@ -349,7 +349,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(
+ # Linker scripts preprocessor (.lds.S -> .lds)
+ # ---------------------------------------------------------------------------
+ quiet_cmd_cpp_lds_S = LDS     $@
+-      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
++      cmd_cpp_lds_S = $(CPP) $(EXTRA_LDSFLAGS) $(cpp_flags) -P -C -U$(ARCH) \
+                            -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
+ 
+ $(obj)/%.lds: $(src)/%.lds.S FORCE
+--- a/include/linux/export.h
++++ b/include/linux/export.h
+@@ -52,12 +52,19 @@ 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)))                   \
+       = VMLINUX_SYMBOL_STR(sym);                              \
+       extern const struct kernel_symbol __ksymtab_##sym;      \
+       __visible const struct kernel_symbol __ksymtab_##sym    \