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handle GPLONLY symbols

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This commit is contained in:
Glenn L McGrath 2003-08-30 06:00:33 +00:00
parent 29a05f56d5
commit 759515c26a
1 changed files with 21 additions and 3 deletions
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24
modutils/insmod.c
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@ -253,7 +253,7 @@
#ifndef MODUTILS_MODULE_H
static const int MODUTILS_MODULE_H = 1;
#ident "$Id: insmod.c,v 1.100 2003/08/13 19:56:33 andersen Exp $"
#ident "$Id: insmod.c,v 1.101 2003/08/30 06:00:33 bug1 Exp $"
/* This file contains the structures used by the 2.0 and 2.1 kernels.
We do not use the kernel headers directly because we do not wish
@ -474,7 +474,7 @@ int delete_module(const char *);
#ifndef MODUTILS_OBJ_H
static const int MODUTILS_OBJ_H = 1;
#ident "$Id: insmod.c,v 1.100 2003/08/13 19:56:33 andersen Exp $"
#ident "$Id: insmod.c,v 1.101 2003/08/30 06:00:33 bug1 Exp $"
/* The relocatable object is manipulated using elfin types. */
@ -650,6 +650,8 @@ static enum obj_reloc arch_apply_relocation (struct obj_file *f,
static void arch_create_got (struct obj_file *f);
static int obj_gpl_license(struct obj_file *f, const char **license);
#ifdef CONFIG_FEATURE_NEW_MODULE_INTERFACE
static int arch_init_module (struct obj_file *f, struct new_module *);
#endif
@ -660,7 +662,6 @@ static int arch_init_module (struct obj_file *f, struct new_module *);
//----------------------------------------------------------------------------
/* SPFX is always a string, so it can be concatenated to string constants. */
#ifdef SYMBOL_PREFIX
#define SPFX SYMBOL_PREFIX
@ -1927,11 +1928,14 @@ add_symbols_from(
struct new_module_symbol *s;
size_t i;
int used = 0;
int gpl;
#ifdef SYMBOL_PREFIX
char *name_buf = 0;
size_t name_alloced_size = 0;
#endif
gpl = obj_gpl_license(f, NULL) == 0;
for (i = 0, s = syms; i < nsyms; ++i, ++s) {
/* Only add symbols that are already marked external.
If we override locals we may cause problems for
@ -1940,6 +1944,19 @@ add_symbols_from(
struct obj_symbol *sym;
char *name = (char *)s->name;
/* GPL licensed modules can use symbols exported with
* EXPORT_SYMBOL_GPL, so ignore any GPLONLY_ prefix on the
* exported names. Non-GPL modules never see any GPLONLY_
* symbols so they cannot fudge it by adding the prefix on
* their references.
*/
if (strncmp((char *)s->name, "GPLONLY_", 8) == 0) {
if (gpl)
((char *)s->name) += 8;
else
continue;
}
#ifdef SYMBOL_PREFIX
/* Prepend SYMBOL_PREFIX to the symbol's name (the
kernel exports `C names', but module object files
@ -3612,6 +3629,7 @@ static void hide_special_symbols(struct obj_file *f)
ELFW(ST_INFO) (STB_LOCAL, ELFW(ST_TYPE) (sym->info));
}
#ifdef CONFIG_FEATURE_CHECK_TAINTED_MODULE
static int obj_gpl_license(struct obj_file *f, const char **license)
{