Viewing file:  pragma_plugin.c (1.62 KB) -rw-r--r--
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/* Demonstrates how to add custom pragmas */
#include "gcc-plugin.h"
#include <stdlib.h>
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "rtl.h"
#include "tree.h"
#include "function.h"
#include "c-family/c-pragma.h"
#include "cpplib.h"
#include "tree-pass.h"
#include "intl.h"
#include "toplev.h"
#include "diagnostic.h"
int plugin_is_GPL_compatible;
/* handler of #pragma GCCPLUGIN sayhello "message" is quite similar to
handler of #pragma GCC message...*/
static void
handle_pragma_sayhello (cpp_reader *dummy)
{
tree message = 0;
if (pragma_lex (&message) != CPP_STRING)
{
warning (OPT_Wpragmas, "%<#pragma GCCPLUGIN sayhello%> is not a string");
return;
}
if (TREE_STRING_LENGTH (message) > 1)
{
location_t loc = expansion_point_location (input_location);
if (cfun)
warning_at (loc, OPT_Wpragmas,
"%<pragma GCCPLUGIN sayhello%> from function %qE: %s",
cfun->decl, TREE_STRING_POINTER (message));
else
warning_at (loc, OPT_Wpragmas,
"%<pragma GCCPLUGIN sayhello%> outside of function: %s",
TREE_STRING_POINTER (message));
}
}
/* Plugin callback called during pragma registration */
static void
register_my_pragma (void *event_data, void *data)
{
warning (0, G_("Callback to register pragmas"));
c_register_pragma ("GCCPLUGIN", "sayhello", handle_pragma_sayhello);
}
int
plugin_init (struct plugin_name_args *plugin_info,
struct plugin_gcc_version *version)
{
const char *plugin_name = plugin_info->base_name;
register_callback (plugin_name, PLUGIN_PRAGMAS, register_my_pragma, NULL);
return 0;
}
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