diff options
Diffstat (limited to 'target/linux/generic/patches-2.6.32/028-module_exports.patch')
| -rw-r--r-- | target/linux/generic/patches-2.6.32/028-module_exports.patch | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/target/linux/generic/patches-2.6.32/028-module_exports.patch b/target/linux/generic/patches-2.6.32/028-module_exports.patch new file mode 100644 index 0000000..5d86333 --- /dev/null +++ b/target/linux/generic/patches-2.6.32/028-module_exports.patch @@ -0,0 +1,119 @@ +--- 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 *(__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 +@@ -254,35 +275,35 @@ + /* 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) = .; \ + } \ + \ +@@ -323,7 +344,7 @@ + \ + /* Kernel symbol table: strings */ \ + __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ +- *(__ksymtab_strings) \ ++ SYMTAB_KEEP_STR \ + } \ + \ + /* __*init sections */ \ +@@ -638,6 +659,9 @@ + EXIT_TEXT \ + EXIT_DATA \ + EXIT_CALL \ ++ SYMTAB_DISCARD \ ++ SYMTAB_DISCARD_GPL \ ++ SYMTAB_DISCARD_STR \ + *(.discard) \ + } + +--- a/include/linux/module.h ++++ b/include/linux/module.h +@@ -192,16 +192,24 @@ 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) \ |