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| author | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-20 22:17:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-03-20 22:42:58 +0100 |
| commit | 9f28bb7e1d0188a993403ab39b774785892805e1 (patch) | |
| tree | 939660c2531335dc899cc66fa7f3f05aa343d1e0 /include | |
| parent | [PATCH] Clean up module.c symbol searching logic (diff) | |
| download | linux-9f28bb7e1d0188a993403ab39b774785892805e1.tar.xz linux-9f28bb7e1d0188a993403ab39b774785892805e1.zip | |
[PATCH] add EXPORT_SYMBOL_GPL_FUTURE()
This patch adds the ability to mark symbols that will be changed in the
future, so that kernel modules that don't include MODULE_LICENSE("GPL")
and use the symbols, will be flagged and printed out to the system log.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 14 | ||||
| -rw-r--r-- | include/linux/module.h | 9 |
2 files changed, 23 insertions, 0 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 35de20cf8fac..9d11550b4818 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -58,6 +58,13 @@ VMLINUX_SYMBOL(__stop___ksymtab_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) \ + VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ + } \ + \ /* Kernel symbol table: Normal symbols */ \ __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___kcrctab) = .; \ @@ -72,6 +79,13 @@ VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ } \ \ + /* Kernel symbol table: GPL-future-only symbols */ \ + __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ + VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ + *(__kcrctab_gpl_future) \ + VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ + } \ + \ /* Kernel symbol table: strings */ \ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ *(__ksymtab_strings) \ diff --git a/include/linux/module.h b/include/linux/module.h index 84d75f3a8aca..a25d5f61548c 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -198,6 +198,9 @@ void *__symbol_get_gpl(const char *symbol); #define EXPORT_SYMBOL_GPL(sym) \ __EXPORT_SYMBOL(sym, "_gpl") +#define EXPORT_SYMBOL_GPL_FUTURE(sym) \ + __EXPORT_SYMBOL(sym, "_gpl_future") + #endif struct module_ref @@ -255,6 +258,11 @@ struct module unsigned int num_gpl_syms; const unsigned long *gpl_crcs; + /* symbols that will be GPL-only in the near future. */ + const struct kernel_symbol *gpl_future_syms; + unsigned int num_gpl_future_syms; + const unsigned long *gpl_future_crcs; + /* Exception table */ unsigned int num_exentries; const struct exception_table_entry *extable; @@ -441,6 +449,7 @@ void module_remove_driver(struct device_driver *); #else /* !CONFIG_MODULES... */ #define EXPORT_SYMBOL(sym) #define EXPORT_SYMBOL_GPL(sym) +#define EXPORT_SYMBOL_GPL_FUTURE(sym) /* Given an address, look for it in the exception tables. */ static inline const struct exception_table_entry * |