X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fggc.h;h=bc94d6c0c1be3ebea7fe41d263b3525a9ca04584;hp=57107ffdfc10ec1388f47345a29940a77e0f0b92;hb=2a3b82778a687430db8cc86b45e9b04f939134c0;hpb=b29540f964edf027d9bbf31e6831d2e6928054dd diff --git a/gcc/ggc.h b/gcc/ggc.h index 57107ffdfc1..bc94d6c0c1b 100644 --- a/gcc/ggc.h +++ b/gcc/ggc.h @@ -1,12 +1,13 @@ /* Garbage collection for the GNU compiler. - Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 - Free Software Foundation, Inc. + + Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, + 2008, 2009 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 2, or (at your option) any later +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 @@ -15,9 +16,8 @@ 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 COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #ifndef GCC_GGC_H #define GCC_GGC_H @@ -121,6 +121,9 @@ extern int ggc_marked_p (const void *); /* Mark the entries in the string pool. */ extern void ggc_mark_stringpool (void); +/* Purge the entries in the string pool. */ +extern void ggc_purge_stringpool (void); + /* Call ggc_set_mark on all the roots. */ extern void ggc_mark_roots (void); @@ -135,7 +138,7 @@ extern void gt_pch_restore_stringpool (void); extern void gt_pch_p_S (void *, void *, gt_pointer_operator, void *); extern void gt_pch_n_S (const void *); -extern void gt_ggc_m_S (void *); +extern void gt_ggc_m_S (const void *); /* Initialize the string pool. */ extern void init_stringpool (void); @@ -155,14 +158,6 @@ extern struct alloc_zone *new_ggc_zone (const char *); /* Free a complete GGC zone, destroying everything in it. */ extern void destroy_ggc_zone (struct alloc_zone *); -/* Start a new GGC context. Memory allocated in previous contexts - will not be collected while the new context is active. */ -extern void ggc_push_context (void); - -/* Finish a GC context. Any uncollected memory in the new context - will be merged with the old context. */ -extern void ggc_pop_context (void); - struct ggc_pch_data; /* Return a new ggc_pch_data structure. */ @@ -209,6 +204,12 @@ extern void ggc_pch_read (FILE *, void *); /* When set, ggc_collect will do collection. */ extern bool ggc_force_collect; +/* When true, identifier nodes are considered as GC roots. When + false, identifier nodes are treated like any other GC-allocated + object, and the identifier hash table is treated as a weak + hash. */ +extern bool ggc_protect_identifiers; + /* The internal primitive. */ extern void *ggc_alloc_stat (size_t MEM_STAT_DECL); #define ggc_alloc(s) ggc_alloc_stat (s MEM_STAT_INFO) @@ -225,20 +226,22 @@ extern void *ggc_realloc_stat (void *, size_t MEM_STAT_DECL); extern void *ggc_calloc (size_t, size_t); /* Free a block. To be used when known for certain it's not reachable. */ extern void ggc_free (void *); - + extern void ggc_record_overhead (size_t, size_t, void * MEM_STAT_DECL); extern void ggc_free_overhead (void *); extern void ggc_prune_overhead_list (void); -extern void dump_ggc_loc_statistics (void); +extern void dump_ggc_loc_statistics (bool); /* Type-safe, C++-friendly versions of ggc_alloc() and gcc_calloc(). */ #define GGC_NEW(T) ((T *) ggc_alloc (sizeof (T))) #define GGC_CNEW(T) ((T *) ggc_alloc_cleared (sizeof (T))) #define GGC_NEWVEC(T, N) ((T *) ggc_alloc ((N) * sizeof(T))) #define GGC_CNEWVEC(T, N) ((T *) ggc_alloc_cleared ((N) * sizeof(T))) +#define GGC_RESIZEVEC(T, P, N) ((T *) ggc_realloc ((P), (N) * sizeof (T))) #define GGC_NEWVAR(T, S) ((T *) ggc_alloc ((S))) #define GGC_CNEWVAR(T, S) ((T *) ggc_alloc_cleared ((S))) +#define GGC_RESIZEVAR(T, P, N) ((T *) ggc_realloc ((P), (N))) #define ggc_alloc_rtvec(NELT) \ ((rtvec) ggc_alloc_zone (sizeof (struct rtvec_def) + ((NELT) - 1) \ @@ -247,7 +250,7 @@ extern void dump_ggc_loc_statistics (void); #define ggc_alloc_tree(LENGTH) ((tree) ggc_alloc_zone (LENGTH, &tree_zone)) #define htab_create_ggc(SIZE, HASH, EQ, DEL) \ - htab_create_alloc (SIZE, HASH, EQ, DEL, ggc_calloc, NULL) + htab_create_alloc (SIZE, HASH, EQ, DEL, ggc_calloc, ggc_free) #define splay_tree_new_ggc(COMPARE) \ splay_tree_new_with_allocator (COMPARE, NULL, NULL, \ @@ -268,6 +271,14 @@ extern const char *ggc_alloc_string (const char *contents, int length); function is called, not during allocations. */ extern void ggc_collect (void); +/* Register an additional root table. This can be useful for some + plugins. Does nothing if the passed pointer is NULL. */ +extern void ggc_register_root_tab (const struct ggc_root_tab *); + +/* Register an additional cache table. This can be useful for some + plugins. Does nothing if the passed pointer is NULL. */ +extern void ggc_register_cache_tab (const struct ggc_cache_tab *); + /* Return the number of bytes allocated at the indicated address. */ extern size_t ggc_get_size (const void *);