1 /*--------------------------------------------------------------------*/ 2 /*--- Callgrind ---*/ 3 /*--- ct_costs.c ---*/ 4 /*--------------------------------------------------------------------*/ 5 6 /* 7 This file is part of Callgrind, a Valgrind tool for call tracing. 8 9 Copyright (C) 2002-2013, Josef Weidendorfer (Josef.Weidendorfer (at) gmx.de) 10 11 This program is free software; you can redistribute it and/or 12 modify it under the terms of the GNU General Public License as 13 published by the Free Software Foundation; either version 2 of the 14 License, or (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, but 17 WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 24 02111-1307, USA. 25 26 The GNU General Public License is contained in the file COPYING. 27 */ 28 29 #include "global.h" 30 31 #include "pub_tool_mallocfree.h" 32 33 #define COSTCHUNK_SIZE 100000 34 35 UInt CLG_(costarray_entries) = 0; 36 UInt CLG_(costarray_chunks) = 0; 37 static CostChunk* cost_chunk_base = 0; 38 static CostChunk* cost_chunk_current = 0; 39 40 ULong* CLG_(get_costarray)(Int size) 41 { 42 ULong* ptr; 43 44 if (!cost_chunk_current || 45 (cost_chunk_current->size - cost_chunk_current->used < size)) { 46 CostChunk* cc = (CostChunk*) CLG_MALLOC("cl.costs.gc.1", 47 sizeof(CostChunk) + 48 COSTCHUNK_SIZE * sizeof(ULong)); 49 CLG_ASSERT(size < COSTCHUNK_SIZE); 50 51 cc->size = COSTCHUNK_SIZE; 52 cc->used = 0; 53 cc->next = 0; 54 55 if (cost_chunk_current) 56 cost_chunk_current->next = cc; 57 cost_chunk_current = cc; 58 59 if (!cost_chunk_base) cost_chunk_base = cc; 60 61 CLG_(costarray_chunks)++; 62 } 63 64 ptr = &(cost_chunk_current->data[cost_chunk_current->used]); 65 cost_chunk_current->used += size; 66 67 CLG_(costarray_entries) += size; 68 69 return ptr; 70 } 71
