1 2 /*--------------------------------------------------------------------*/ 3 /*--- High-level memory management. pub_core_mallocfree.h ---*/ 4 /*--------------------------------------------------------------------*/ 5 6 /* 7 This file is part of Valgrind, a dynamic binary instrumentation 8 framework. 9 10 Copyright (C) 2000-2011 Julian Seward 11 jseward@acm.org 12 13 This program is free software; you can redistribute it and/or 14 modify it under the terms of the GNU General Public License as 15 published by the Free Software Foundation; either version 2 of the 16 License, or (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, but 19 WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21 General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 26 02111-1307, USA. 27 28 The GNU General Public License is contained in the file COPYING. 29 */ 30 31 #ifndef __PUB_CORE_MALLOCFREE_H 32 #define __PUB_CORE_MALLOCFREE_H 33 34 #include "pub_tool_mallocfree.h" 35 36 //-------------------------------------------------------------------- 37 // PURPOSE: high-level memory allocation (malloc/free), for the core and 38 // tools. 39 //-------------------------------------------------------------------- 40 41 /* Allocation arenas. 42 43 CORE for the core's general use. 44 TOOL for the tool to use (and the only one it uses). 45 DINFO for debug info (symbols, line #s, CFI, etc) storage. 46 CLIENT for the client's mallocs/frees, if the tool replaces glibc's 47 malloc() et al -- redzone size is chosen by the tool. 48 DEMANGLE for the C++ demangler. 49 EXECTXT for storing ExeContexts. 50 ERRORS for storing CoreErrors. 51 TTAUX for storing TT/TC auxiliary structures (address range 52 equivalence classes). 53 54 When adding a new arena, remember also to add it to ensure_mm_init(). 55 */ 56 typedef Int ArenaId; 57 58 #define VG_N_ARENAS 8 59 60 #define VG_AR_CORE 0 61 #define VG_AR_TOOL 1 62 #define VG_AR_DINFO 2 63 #define VG_AR_CLIENT 3 64 #define VG_AR_DEMANGLE 4 65 #define VG_AR_EXECTXT 5 66 #define VG_AR_ERRORS 6 67 #define VG_AR_TTAUX 7 68 69 // This is both the minimum payload size of a malloc'd block, and its 70 // minimum alignment. Must be a power of 2 greater than 4, and should be 71 // greater than 8. 72 #if defined(VGP_x86_linux) || \ 73 defined(VGP_arm_linux) 74 # define VG_MIN_MALLOC_SZB 8 75 // Nb: We always use 16 bytes for Darwin, even on 32-bits, so it can be used 76 // for any AltiVec- or SSE-related type. This matches the Darwin libc. 77 // Also, use 16 bytes for any PPC variant, since 16 is required to make 78 // Altiveccery work right. 79 #elif defined(VGP_amd64_linux) || \ 80 defined(VGP_ppc32_linux) || \ 81 defined(VGP_ppc64_linux) || \ 82 defined(VGP_s390x_linux) || \ 83 defined(VGP_x86_darwin) || \ 84 defined(VGP_amd64_darwin) 85 # define VG_MIN_MALLOC_SZB 16 86 #else 87 # error Unknown platform 88 #endif 89 90 /* This struct definition MUST match the system one. */ 91 /* SVID2/XPG mallinfo structure */ 92 struct vg_mallinfo { 93 int arena; /* total space allocated from system */ 94 int ordblks; /* number of non-inuse chunks */ 95 int smblks; /* unused -- always zero */ 96 int hblks; /* number of mmapped regions */ 97 int hblkhd; /* total space in mmapped regions */ 98 int usmblks; /* unused -- always zero */ 99 int fsmblks; /* unused -- always zero */ 100 int uordblks; /* total allocated space */ 101 int fordblks; /* total non-inuse space */ 102 int keepcost; /* top-most, releasable (via malloc_trim) space */ 103 }; 104 105 extern void* VG_(arena_malloc) ( ArenaId arena, HChar* cc, SizeT nbytes ); 106 extern void VG_(arena_free) ( ArenaId arena, void* ptr ); 107 extern void* VG_(arena_calloc) ( ArenaId arena, HChar* cc, 108 SizeT nmemb, SizeT bytes_per_memb ); 109 extern void* VG_(arena_realloc) ( ArenaId arena, HChar* cc, 110 void* ptr, SizeT size ); 111 extern void* VG_(arena_memalign)( ArenaId aid, HChar* cc, 112 SizeT req_alignB, SizeT req_pszB ); 113 extern Char* VG_(arena_strdup) ( ArenaId aid, HChar* cc, 114 const Char* s); 115 116 extern SizeT VG_(arena_malloc_usable_size) ( ArenaId aid, void* payload ); 117 118 extern void VG_(mallinfo) ( ThreadId tid, struct vg_mallinfo* mi ); 119 120 extern void VG_(sanity_check_malloc_all) ( void ); 121 122 extern void VG_(print_all_arena_stats) ( void ); 123 124 extern void VG_(print_arena_cc_analysis) ( void ); 125 126 #endif // __PUB_CORE_MALLOCFREE_H 127 128 /*--------------------------------------------------------------------*/ 129 /*--- end ---*/ 130 /*--------------------------------------------------------------------*/ 131