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gcc-plugins: Export symbols needed by gcc 

This explicitly exports symbols that gcc expects from plugins.

Based on code from Emese Revfy.

Signed-off-by: Kees Cook <keescook@chromium.org>
hifive-unleashed-5.1
Kees Cook 2016-10-31 10:40:13 -07:00
parent 07d9a38068
commit da7389ac6c
4 changed files with 8 additions and 7 deletions
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4
scripts/gcc-plugins/cyc_complexity_plugin.c
View File

@ -20,7 +20,7 @@
#include "gcc-common.h"
int plugin_is_GPL_compatible;
__visible int plugin_is_GPL_compatible;
static struct plugin_info cyc_complexity_plugin_info = {
.version = "20160225",
@ -49,7 +49,7 @@ static unsigned int cyc_complexity_execute(void)
#include "gcc-generate-gimple-pass.h"
int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
__visible int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
{
const char * const plugin_name = plugin_info->base_name;
struct register_pass_info cyc_complexity_pass_info;

1
scripts/gcc-plugins/gcc-common.h
View File

@ -130,6 +130,7 @@ extern void dump_gimple_stmt(pretty_printer *, gimple, int, int);
#endif
#define __unused __attribute__((__unused__))
#define __visible __attribute__((visibility("default")))
#define DECL_NAME_POINTER(node) IDENTIFIER_POINTER(DECL_NAME(node))
#define DECL_NAME_LENGTH(node) IDENTIFIER_LENGTH(DECL_NAME(node))

6
scripts/gcc-plugins/latent_entropy_plugin.c
View File

@ -77,7 +77,7 @@
#include "gcc-common.h"
int plugin_is_GPL_compatible;
__visible int plugin_is_GPL_compatible;
static GTY(()) tree latent_entropy_decl;
@ -584,8 +584,8 @@ static void latent_entropy_start_unit(void *gcc_data __unused,
| TODO_update_ssa
#include "gcc-generate-gimple-pass.h"
int plugin_init(struct plugin_name_args *plugin_info,
struct plugin_gcc_version *version)
__visible int plugin_init(struct plugin_name_args *plugin_info,
struct plugin_gcc_version *version)
{
bool enabled = true;
const char * const plugin_name = plugin_info->base_name;

4
scripts/gcc-plugins/sancov_plugin.c
View File

@ -21,7 +21,7 @@
#include "gcc-common.h"
int plugin_is_GPL_compatible;
__visible int plugin_is_GPL_compatible;
tree sancov_fndecl;
@ -86,7 +86,7 @@ static void sancov_start_unit(void __unused *gcc_data, void __unused *user_data)
#endif
}
int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
__visible int plugin_init(struct plugin_name_args *plugin_info, struct plugin_gcc_version *version)
{
int i;
struct register_pass_info sancov_plugin_pass_info;