git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 0a25f1f5 RH |
1 | /* Garbage collection for the GNU compiler. |
| 2 | Copyright (C) 1998 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GNU CC. | |
| 5 | ||
| 6 | GNU CC is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU CC is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GNU CC; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | #include "gansidecl.h" | |
| 22 | ||
| 23 | /* Symbols are marked with `ggc' for `gcc gc' so as not to interfere with | |
| 24 | an external gc library that might be linked in. */ | |
| 25 | ||
| 26 | /* Startup */ | |
| 27 | ||
| 28 | extern void init_ggc PROTO ((void)); | |
| 29 | ||
| 30 | /* Allocation. */ | |
| 31 | ||
| 32 | struct rtx_def *ggc_alloc_rtx PROTO ((int nslots)); | |
| 33 | struct rtvec_def *ggc_alloc_rtvec PROTO ((int nelt)); | |
| 34 | union tree_node *ggc_alloc_tree PROTO ((int length)); | |
| 35 | char *ggc_alloc_string PROTO ((const char *contents, int length)); | |
| 36 | ||
| 37 | /* Invoke the collector. This is really just a hint, but in the case of | |
| 38 | the simple collector, the only time it will happen. */ | |
| 39 | ||
| 40 | void ggc_collect PROTO ((void)); | |
| 41 | ||
| 42 | /* Manipulate global roots that are needed between calls to gc. */ | |
| 43 | void ggc_add_root PROTO ((void *base, int nelt, int size, | |
| 44 | void (*)(void *))); | |
| 45 | void ggc_add_rtx_root PROTO ((struct rtx_def **, int nelt)); | |
| 46 | void ggc_add_tree_root PROTO ((union tree_node **, int nelt)); | |
| 47 | void ggc_del_root PROTO ((void *base)); | |
| 48 | ||
| 49 | /* Mark nodes from the gc_add_root callback. */ | |
| 50 | void ggc_mark_rtx PROTO ((struct rtx_def *)); | |
| 51 | void ggc_mark_rtvec PROTO ((struct rtvec_def *)); | |
| 52 | void ggc_mark_tree PROTO ((union tree_node *)); | |
| 53 | void ggc_mark_string PROTO ((char *)); | |
| 54 | ||
| 55 | /* Callbacks to the languages. */ | |
| 56 | ||
| 57 | /* This is the language's opportunity to mark nodes held through | |
| 58 | the lang_specific hooks in the tree. */ | |
| 59 | void lang_mark_tree PROTO ((union tree_node *)); | |
| 60 | ||
| 61 | /* And similarly to free that data when the tree node is released. */ | |
| 62 | void lang_cleanup_tree PROTO ((union tree_node *)); | |
| 63 | ||
| 64 | /* Mark functions for various structs scattered about. */ | |
| 65 | ||
| 66 | void mark_temp_slot PROTO ((void *)); | |
| 67 | void mark_function_chain PROTO ((void *)); | |
| 68 | void mark_eh_state PROTO ((void *)); | |
| 69 | void mark_stmt_state PROTO ((void *)); | |
| 70 | void mark_emit_state PROTO ((void *)); | |
| 71 | void mark_varasm_state PROTO ((void *)); | |
| 72 | void mark_optab PROTO ((void *)); |