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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/ggc.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/ggc.h | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/ggc.h b/gcc-4.2.1-5666.3/gcc/ggc.h deleted file mode 100644 index e51b75392..000000000 --- a/gcc-4.2.1-5666.3/gcc/ggc.h +++ /dev/null @@ -1,319 +0,0 @@ -/* Garbage collection for the GNU compiler. - Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 - 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 -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 COPYING. If not, write to the Free -Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301, USA. */ - -#ifndef GCC_GGC_H -#define GCC_GGC_H -#include "statistics.h" - -/* Symbols are marked with `ggc' for `gcc gc' so as not to interfere with - an external gc library that might be linked in. */ - -/* Constants for general use. */ -extern const char empty_string[]; /* empty string */ -extern const char digit_vector[]; /* "0" .. "9" */ -#define digit_string(d) (digit_vector + ((d) * 2)) - -/* Internal functions and data structures used by the GTY - machinery. */ - -/* The first parameter is a pointer to a pointer, the second a cookie. */ -typedef void (*gt_pointer_operator) (void *, void *); - -#include "gtype-desc.h" - -/* One of these applies its third parameter (with cookie in the fourth - parameter) to each pointer in the object pointed to by the first - parameter, using the second parameter. */ -typedef void (*gt_note_pointers) (void *, void *, gt_pointer_operator, - void *); - -/* One of these is called before objects are re-ordered in memory. - The first parameter is the original object, the second is the - subobject that has had its pointers reordered, the third parameter - can compute the new values of a pointer when given the cookie in - the fourth parameter. */ -typedef void (*gt_handle_reorder) (void *, void *, gt_pointer_operator, - void *); - -/* Used by the gt_pch_n_* routines. Register an object in the hash table. */ -extern int gt_pch_note_object (void *, void *, gt_note_pointers, - enum gt_types_enum); - -/* Used by the gt_pch_n_* routines. Register that an object has a reorder - function. */ -extern void gt_pch_note_reorder (void *, void *, gt_handle_reorder); - -/* Mark the object in the first parameter and anything it points to. */ -typedef void (*gt_pointer_walker) (void *); - -/* Structures for the easy way to mark roots. - In an array, terminated by having base == NULL. */ -struct ggc_root_tab { - void *base; - size_t nelt; - size_t stride; - gt_pointer_walker cb; - gt_pointer_walker pchw; -}; -#define LAST_GGC_ROOT_TAB { NULL, 0, 0, NULL, NULL } -/* Pointers to arrays of ggc_root_tab, terminated by NULL. */ -extern const struct ggc_root_tab * const gt_ggc_rtab[]; -extern const struct ggc_root_tab * const gt_ggc_deletable_rtab[]; -extern const struct ggc_root_tab * const gt_pch_cache_rtab[]; -extern const struct ggc_root_tab * const gt_pch_scalar_rtab[]; - -/* Structure for hash table cache marking. */ -struct htab; -struct ggc_cache_tab { - struct htab * *base; - size_t nelt; - size_t stride; - gt_pointer_walker cb; - gt_pointer_walker pchw; - int (*marked_p) (const void *); -}; -#define LAST_GGC_CACHE_TAB { NULL, 0, 0, NULL, NULL, NULL } -/* Pointers to arrays of ggc_cache_tab, terminated by NULL. */ -extern const struct ggc_cache_tab * const gt_ggc_cache_rtab[]; - -/* If EXPR is not NULL and previously unmarked, mark it and evaluate - to true. Otherwise evaluate to false. */ -#define ggc_test_and_set_mark(EXPR) \ - ((EXPR) != NULL && ((void *) (EXPR)) != (void *) 1 && ! ggc_set_mark (EXPR)) - -#define ggc_mark(EXPR) \ - do { \ - const void *const a__ = (EXPR); \ - if (a__ != NULL && a__ != (void *) 1) \ - ggc_set_mark (a__); \ - } while (0) - -/* Actually set the mark on a particular region of memory, but don't - follow pointers. This function is called by ggc_mark_*. It - returns zero if the object was not previously marked; nonzero if - the object was already marked, or if, for any other reason, - pointers in this data structure should not be traversed. */ -extern int ggc_set_mark (const void *); - -/* Return 1 if P has been marked, zero otherwise. - P must have been allocated by the GC allocator; it mustn't point to - static objects, stack variables, or memory allocated with malloc. */ -extern int ggc_marked_p (const void *); - -/* Mark the entries in the string pool. */ -extern void ggc_mark_stringpool (void); - -/* Call ggc_set_mark on all the roots. */ - -extern void ggc_mark_roots (void); - -/* Save and restore the string pool entries for PCH. */ - -extern void gt_pch_save_stringpool (void); -extern void gt_pch_fixup_stringpool (void); -extern void gt_pch_restore_stringpool (void); - -/* PCH and GGC handling for strings, mostly trivial. */ - -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 *); - -/* Initialize the string pool. */ -extern void init_stringpool (void); - -/* A GC implementation must provide these functions. They are internal - to the GC system. */ - -/* Forward declare the zone structure. Only ggc_zone implements this. */ -struct alloc_zone; - -/* Initialize the garbage collector. */ -extern void init_ggc (void); - -/* Start a new GGC zone. */ -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 *); - -struct ggc_pch_data; - -/* Return a new ggc_pch_data structure. */ -extern struct ggc_pch_data *init_ggc_pch (void); - -/* The second parameter and third parameters give the address and size - of an object. Update the ggc_pch_data structure with as much of - that information as is necessary. The bool argument should be true - if the object is a string. */ -extern void ggc_pch_count_object (struct ggc_pch_data *, void *, size_t, bool, - enum gt_types_enum); - -/* Return the total size of the data to be written to hold all - the objects previously passed to ggc_pch_count_object. */ -extern size_t ggc_pch_total_size (struct ggc_pch_data *); - -/* The objects, when read, will most likely be at the address - in the second parameter. */ -extern void ggc_pch_this_base (struct ggc_pch_data *, void *); - -/* Assuming that the objects really do end up at the address - passed to ggc_pch_this_base, return the address of this object. - The bool argument should be true if the object is a string. */ -extern char *ggc_pch_alloc_object (struct ggc_pch_data *, void *, size_t, bool, - enum gt_types_enum); - -/* Write out any initial information required. */ -extern void ggc_pch_prepare_write (struct ggc_pch_data *, FILE *); -/* Write out this object, including any padding. The last argument should be - true if the object is a string. */ -extern void ggc_pch_write_object (struct ggc_pch_data *, FILE *, void *, - void *, size_t, bool); -/* All objects have been written, write out any final information - required. */ -extern void ggc_pch_finish (struct ggc_pch_data *, FILE *); - -/* A PCH file has just been read in at the address specified second - parameter. Set up the GC implementation for the new objects. */ -extern void ggc_pch_read (FILE *, void *); - - -/* Allocation. */ - -/* When set, ggc_collect will do collection. */ -extern bool ggc_force_collect; - -/* The internal primitive. */ -extern void *ggc_alloc_stat (size_t MEM_STAT_DECL); -#define ggc_alloc(s) ggc_alloc_stat (s MEM_STAT_INFO) -/* Allocate an object of the specified type and size. */ -extern void *ggc_alloc_typed_stat (enum gt_types_enum, size_t MEM_STAT_DECL); -#define ggc_alloc_typed(s,z) ggc_alloc_typed_stat (s,z MEM_STAT_INFO) -/* Like ggc_alloc, but allocates cleared memory. */ -extern void *ggc_alloc_cleared_stat (size_t MEM_STAT_DECL); -#define ggc_alloc_cleared(s) ggc_alloc_cleared_stat (s MEM_STAT_INFO) -/* Resize a block. */ -extern void *ggc_realloc_stat (void *, size_t MEM_STAT_DECL); -#define ggc_realloc(s,z) ggc_realloc_stat (s,z MEM_STAT_INFO) -/* Like ggc_alloc_cleared, but performs a multiplication. */ -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); - -/* 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_NEWVAR(T, S) ((T *) ggc_alloc ((S))) -#define GGC_CNEWVAR(T, S) ((T *) ggc_alloc_cleared ((S))) -#define GGC_RESIZEVEC(T, P, N) ((T *) ggc_realloc ((P), (N) * sizeof (T))) - -#define ggc_alloc_rtvec(NELT) \ - ((rtvec) ggc_alloc_zone (sizeof (struct rtvec_def) + ((NELT) - 1) \ - * sizeof (rtx), &rtl_zone)) - -#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) - -#define splay_tree_new_ggc(COMPARE) \ - splay_tree_new_with_allocator (COMPARE, NULL, NULL, \ - &ggc_splay_alloc, &ggc_splay_dont_free, \ - NULL) -extern void *ggc_splay_alloc (int, void *); -extern void ggc_splay_dont_free (void *, void *); - -/* Allocate a gc-able string, and fill it with LENGTH bytes from CONTENTS. - If LENGTH is -1, then CONTENTS is assumed to be a - null-terminated string and the memory sized accordingly. */ -extern const char *ggc_alloc_string (const char *contents, int length); - -/* Make a copy of S, in GC-able memory. */ -#define ggc_strdup(S) ggc_alloc_string((S), -1) - -/* Invoke the collector. Garbage collection occurs only when this - function is called, not during allocations. */ -extern void ggc_collect (void); - -/* Return the number of bytes allocated at the indicated address. */ -extern size_t ggc_get_size (const void *); - -/* Write out all GCed objects to F. */ -extern void gt_pch_save (FILE *f); - -/* Read objects previously saved with gt_pch_save from F. */ -extern void gt_pch_restore (FILE *f); - -/* Statistics. */ - -/* This structure contains the statistics common to all collectors. - Particular collectors can extend this structure. */ -typedef struct ggc_statistics -{ - /* At present, we don't really gather any interesting statistics. */ - int unused; -} ggc_statistics; - -/* Used by the various collectors to gather and print statistics that - do not depend on the collector in use. */ -extern void ggc_print_common_statistics (FILE *, ggc_statistics *); - -/* Print allocation statistics. */ -extern void ggc_print_statistics (void); -extern void stringpool_statistics (void); - -/* Heuristics. */ -extern int ggc_min_expand_heuristic (void); -/* APPLE LOCAL begin retune gc params 6124839 */ -extern int ggc_min_heapsize_heuristic (bool); -extern void init_ggc_heuristics (bool); -/* APPLE LOCAL end retune gc params 6124839 */ - -/* Zone collection. */ -#if defined (GGC_ZONE) && !defined (GENERATOR_FILE) - -/* For regular rtl allocations. */ -extern struct alloc_zone rtl_zone; -/* For regular tree allocations. */ -extern struct alloc_zone tree_zone; -/* For IDENTIFIER_NODE allocations. */ -extern struct alloc_zone tree_id_zone; - -/* Allocate an object into the specified allocation zone. */ -extern void *ggc_alloc_zone_stat (size_t, struct alloc_zone * MEM_STAT_DECL); -# define ggc_alloc_zone(s,z) ggc_alloc_zone_stat (s,z MEM_STAT_INFO) -# define ggc_alloc_zone_pass_stat(s,z) ggc_alloc_zone_stat (s,z PASS_MEM_STAT) -#else - -# define ggc_alloc_zone(s, z) ggc_alloc (s) -# define ggc_alloc_zone_pass_stat(s, z) ggc_alloc_stat (s PASS_MEM_STAT) - -#endif - -#endif |