122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
|
/* Generic plugin context
|
||
|
|
Copyright (C) 2020-2022 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of GCC.
|
||
|
|
|
||
|
|
GCC is free software; you can redistribute it and/or modify it under
|
||
|
|
the terms of the GNU General Public License as published by the Free
|
||
|
|
Software Foundation; either version 3, or (at your option) any later
|
||
|
|
version.
|
||
|
|
|
||
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
||
|
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
|
|
for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with GCC; see the file COPYING3. If not see
|
||
|
|
<http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#ifndef CC1_PLUGIN_CONTEXT_HH
|
||
|
|
#define CC1_PLUGIN_CONTEXT_HH
|
||
|
|
|
||
|
|
#include "system.h"
|
||
|
|
#include "coretypes.h"
|
||
|
|
#include "tree.h"
|
||
|
|
|
||
|
|
#include "connection.hh"
|
||
|
|
|
||
|
|
namespace cc1_plugin
|
||
|
|
{
|
||
|
|
static inline unsigned long long
|
||
|
|
convert_out (tree t)
|
||
|
|
{
|
||
|
|
return (unsigned long long) (uintptr_t) t;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline tree
|
||
|
|
convert_in (unsigned long long v)
|
||
|
|
{
|
||
|
|
return (tree) (uintptr_t) v;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct decl_addr_value
|
||
|
|
{
|
||
|
|
tree decl;
|
||
|
|
tree address;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct decl_addr_hasher : free_ptr_hash<decl_addr_value>
|
||
|
|
{
|
||
|
|
static hashval_t hash (const decl_addr_value *e)
|
||
|
|
{
|
||
|
|
return DECL_UID (e->decl);
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool equal (const decl_addr_value *p1,
|
||
|
|
const decl_addr_value *p2)
|
||
|
|
{
|
||
|
|
return p1->decl == p2->decl;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct string_hasher : nofree_ptr_hash<const char>
|
||
|
|
{
|
||
|
|
static inline hashval_t hash (const char *s)
|
||
|
|
{
|
||
|
|
return htab_hash_string (s);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool equal (const char *p1, const char *p2)
|
||
|
|
{
|
||
|
|
return strcmp (p1, p2) == 0;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
struct plugin_context : public cc1_plugin::connection
|
||
|
|
{
|
||
|
|
plugin_context (int fd)
|
||
|
|
: cc1_plugin::connection (fd),
|
||
|
|
address_map (30),
|
||
|
|
preserved (30),
|
||
|
|
file_names (30)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
// Map decls to addresses.
|
||
|
|
hash_table<decl_addr_hasher> address_map;
|
||
|
|
|
||
|
|
// A collection of trees that are preserved for the GC.
|
||
|
|
hash_table< nofree_ptr_hash<tree_node> > preserved;
|
||
|
|
|
||
|
|
// File name cache.
|
||
|
|
hash_table<string_hasher> file_names;
|
||
|
|
|
||
|
|
// Perform GC marking.
|
||
|
|
void mark ();
|
||
|
|
|
||
|
|
// Preserve a tree during the plugin's operation.
|
||
|
|
tree preserve (tree t)
|
||
|
|
{
|
||
|
|
tree_node **slot = preserved.find_slot (t, INSERT);
|
||
|
|
*slot = t;
|
||
|
|
return t;
|
||
|
|
}
|
||
|
|
|
||
|
|
location_t get_location_t (const char *filename,
|
||
|
|
unsigned int line_number);
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
// Add a file name to FILE_NAMES and return the canonical copy.
|
||
|
|
const char *intern_filename (const char *filename);
|
||
|
|
};
|
||
|
|
|
||
|
|
extern plugin_context *current_context;
|
||
|
|
|
||
|
|
void generic_plugin_init (struct plugin_name_args *plugin_info,
|
||
|
|
unsigned int version);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // CC1_PLUGIN_CONTEXT_HH
|