diff options
Diffstat (limited to 'target/linux/generic/hack-5.4/204-module_strip.patch')
| -rw-r--r-- | target/linux/generic/hack-5.4/204-module_strip.patch | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/target/linux/generic/hack-5.4/204-module_strip.patch b/target/linux/generic/hack-5.4/204-module_strip.patch deleted file mode 100644 index d6e25f319b..0000000000 --- a/target/linux/generic/hack-5.4/204-module_strip.patch +++ /dev/null @@ -1,220 +0,0 @@ -From a779a482fb9b9f8fcdf8b2519c789b4b9bb5dd05 Mon Sep 17 00:00:00 2001 -From: Felix Fietkau <nbd@nbd.name> -Date: Fri, 7 Jul 2017 16:56:48 +0200 -Subject: build: add a hack for removing non-essential module info - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - include/linux/module.h | 13 ++++++++----- - include/linux/moduleparam.h | 15 ++++++++++++--- - init/Kconfig | 7 +++++++ - kernel/module.c | 5 ++++- - scripts/mod/modpost.c | 12 ++++++++++++ - 5 files changed, 43 insertions(+), 9 deletions(-) - ---- a/include/linux/module.h -+++ b/include/linux/module.h -@@ -157,6 +157,7 @@ extern void cleanup_module(void); - - /* Generic info of form tag = "info" */ - #define MODULE_INFO(tag, info) __MODULE_INFO(tag, tag, info) -+#define MODULE_INFO_STRIP(tag, info) __MODULE_INFO_STRIP(tag, tag, info) - - /* For userspace: you can also call me... */ - #define MODULE_ALIAS(_alias) MODULE_INFO(alias, _alias) -@@ -216,12 +217,12 @@ extern void cleanup_module(void); - * Author(s), use "Name <email>" or just "Name", for multiple - * authors use multiple MODULE_AUTHOR() statements/lines. - */ --#define MODULE_AUTHOR(_author) MODULE_INFO(author, _author) -+#define MODULE_AUTHOR(_author) MODULE_INFO_STRIP(author, _author) - - /* What your module does. */ --#define MODULE_DESCRIPTION(_description) MODULE_INFO(description, _description) -+#define MODULE_DESCRIPTION(_description) MODULE_INFO_STRIP(description, _description) - --#ifdef MODULE -+#if defined(MODULE) && !defined(CONFIG_MODULE_STRIPPED) - /* Creates an alias so file2alias.c can find device table. */ - #define MODULE_DEVICE_TABLE(type, name) \ - extern typeof(name) __mod_##type##__##name##_device_table \ -@@ -248,7 +249,9 @@ extern typeof(name) __mod_##type##__##na - */ - - #if defined(MODULE) || !defined(CONFIG_SYSFS) --#define MODULE_VERSION(_version) MODULE_INFO(version, _version) -+#define MODULE_VERSION(_version) MODULE_INFO_STRIP(version, _version) -+#elif defined(CONFIG_MODULE_STRIPPED) -+#define MODULE_VERSION(_version) __MODULE_INFO_DISABLED(version) - #else - #define MODULE_VERSION(_version) \ - MODULE_INFO(version, _version); \ -@@ -271,7 +274,7 @@ extern typeof(name) __mod_##type##__##na - /* Optional firmware file (or files) needed by the module - * format is simply firmware file name. Multiple firmware - * files require multiple MODULE_FIRMWARE() specifiers */ --#define MODULE_FIRMWARE(_firmware) MODULE_INFO(firmware, _firmware) -+#define MODULE_FIRMWARE(_firmware) MODULE_INFO_STRIP(firmware, _firmware) - - #define MODULE_IMPORT_NS(ns) MODULE_INFO(import_ns, #ns) - ---- a/include/linux/moduleparam.h -+++ b/include/linux/moduleparam.h -@@ -20,10 +20,24 @@ - /* Chosen so that structs with an unsigned long line up. */ - #define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long)) - -+/* This struct is here for syntactic coherency, it is not used */ -+#define __MODULE_INFO_DISABLED(name) \ -+ struct __UNIQUE_ID(name) {} -+ -+#ifdef CONFIG_MODULE_STRIPPED -+#define __MODULE_INFO_STRIP(tag, name, info) __MODULE_INFO_DISABLED(name) -+#else -+#define __MODULE_INFO_STRIP(tag, name, info) __MODULE_INFO(tag, name, info) -+#endif -+ -+#ifdef MODULE - #define __MODULE_INFO(tag, name, info) \ - static const char __UNIQUE_ID(name)[] \ - __used __attribute__((section(".modinfo"), unused, aligned(1))) \ - = __MODULE_INFO_PREFIX __stringify(tag) "=" info -+#else -+#define __MODULE_INFO(tag, name, info) __MODULE_INFO_DISABLED(name) -+#endif - - #define __MODULE_PARM_TYPE(name, _type) \ - __MODULE_INFO(parmtype, name##type, #name ":" _type) -@@ -31,7 +45,7 @@ static const char __UNIQUE_ID(name)[] - /* One for each parameter, describing how to use it. Some files do - multiple of these per line, so can't just use MODULE_INFO. */ - #define MODULE_PARM_DESC(_parm, desc) \ -- __MODULE_INFO(parm, _parm, #_parm ":" desc) -+ __MODULE_INFO_STRIP(parm, _parm, #_parm ":" desc) - - struct kernel_param; - ---- a/init/Kconfig -+++ b/init/Kconfig -@@ -2198,6 +2198,13 @@ config TRIM_UNUSED_KSYMS - - If unsure, or if you need to build out-of-tree modules, say N. - -+config MODULE_STRIPPED -+ bool "Reduce module size" -+ depends on MODULES -+ help -+ Remove module parameter descriptions, author info, version, aliases, -+ device tables, etc. -+ - endif # MODULES - - config MODULES_TREE_LOOKUP ---- a/kernel/module.c -+++ b/kernel/module.c -@@ -1281,6 +1281,7 @@ static struct module_attribute *modinfo_ - - static const char vermagic[] = VERMAGIC_STRING; - -+#if defined(CONFIG_MODVERSIONS) || !defined(CONFIG_MODULE_STRIPPED) - static int try_to_force_load(struct module *mod, const char *reason) - { - #ifdef CONFIG_MODULE_FORCE_LOAD -@@ -1292,6 +1293,7 @@ static int try_to_force_load(struct modu - return -ENOEXEC; - #endif - } -+#endif - - #ifdef CONFIG_MODVERSIONS - -@@ -3256,9 +3258,11 @@ static int setup_load_info(struct load_i - - static int check_modinfo(struct module *mod, struct load_info *info, int flags) - { -- const char *modmagic = get_modinfo(info, "vermagic"); - int err; - -+#ifndef CONFIG_MODULE_STRIPPED -+ const char *modmagic = get_modinfo(info, "vermagic"); -+ - if (flags & MODULE_INIT_IGNORE_VERMAGIC) - modmagic = NULL; - -@@ -3279,6 +3283,7 @@ static int check_modinfo(struct module * - mod->name); - add_taint_module(mod, TAINT_OOT_MODULE, LOCKDEP_STILL_OK); - } -+#endif - - check_modinfo_retpoline(mod, info); - ---- a/scripts/mod/modpost.c -+++ b/scripts/mod/modpost.c -@@ -2056,7 +2056,9 @@ static void read_symbols(const char *mod - symname = remove_dot(info.strtab + sym->st_name); - - handle_modversions(mod, &info, sym, symname); -+#ifndef CONFIG_MODULE_STRIPPED - handle_moddevtable(mod, &info, sym, symname); -+#endif - } - - /* Apply symbol namespaces from __kstrtabns_<symbol> entries. */ -@@ -2270,8 +2272,10 @@ static void add_header(struct buffer *b, - buf_printf(b, "\n"); - buf_printf(b, "BUILD_SALT;\n"); - buf_printf(b, "\n"); -+#ifndef CONFIG_MODULE_STRIPPED - buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n"); - buf_printf(b, "MODULE_INFO(name, KBUILD_MODNAME);\n"); -+#endif - buf_printf(b, "\n"); - buf_printf(b, "__visible struct module __this_module\n"); - buf_printf(b, "__section(.gnu.linkonce.this_module) = {\n"); -@@ -2288,8 +2292,10 @@ static void add_header(struct buffer *b, - - static void add_intree_flag(struct buffer *b, int is_intree) - { -+#ifndef CONFIG_MODULE_STRIPPED - if (is_intree) - buf_printf(b, "\nMODULE_INFO(intree, \"Y\");\n"); -+#endif - } - - /* Cannot check for assembler */ -@@ -2302,8 +2308,10 @@ static void add_retpoline(struct buffer - - static void add_staging_flag(struct buffer *b, const char *name) - { -+#ifndef CONFIG_MODULE_STRIPPED - if (strstarts(name, "drivers/staging")) - buf_printf(b, "\nMODULE_INFO(staging, \"Y\");\n"); -+#endif - } - - /** -@@ -2387,11 +2395,13 @@ static void add_depends(struct buffer *b - - static void add_srcversion(struct buffer *b, struct module *mod) - { -+#ifndef CONFIG_MODULE_STRIPPED - if (mod->srcversion[0]) { - buf_printf(b, "\n"); - buf_printf(b, "MODULE_INFO(srcversion, \"%s\");\n", - mod->srcversion); - } -+#endif - } - - static void write_if_changed(struct buffer *b, const char *fname) -@@ -2661,7 +2671,9 @@ int main(int argc, char **argv) - add_staging_flag(&buf, mod->name); - err |= add_versions(&buf, mod); - add_depends(&buf, mod); -+#ifndef CONFIG_MODULE_STRIPPED - add_moddevtable(&buf, mod); -+#endif - add_srcversion(&buf, mod); - - sprintf(fname, "%s.mod.c", mod->name); |