| /* Generic plugin context |
| Copyright (C) 2020 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 |