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Sync VEX/LICENSE.GPL with top-level COPYING file. We used 3 different addresses for writing to the FSF to receive a copy of the GPL. Replace all different variants with an URL <http://www.gnu.org/licenses/>. The following files might still have some slightly different (L)GPL copyright notice because they were derived from other programs: - files under coregrind/m_demangle which come from libiberty: cplus-dem.c, d-demangle.c, demangle.h, rust-demangle.c, safe-ctype.c and safe-ctype.h - coregrind/m_demangle/dyn-string.[hc] derived from GCC. - coregrind/m_demangle/ansidecl.h derived from glibc. - VEX files for FMA detived from glibc: host_generic_maddf.h and host_generic_maddf.c - files under coregrin/m_debuginfo derived from LZO: lzoconf.h, lzodefs.h, minilzo-inl.c and minilzo.h - files under coregrind/m_gdbserver detived from GDB: gdb/signals.h, inferiors.c, regcache.c, regcache.h, regdef.h, remote-utils.c, server.c, server.h, signals.c, target.c, target.h and utils.c Plus the following test files: - none/tests/ppc32/testVMX.c derived from testVMX. - ppc tests derived from QEMU: jm-insns.c, ppc64_helpers.h and test_isa_3_0.c - tests derived from bzip2 (with embedded GPL text in code): hackedbz2.c, origin5-bz2.c, varinfo6.c - tests detived from glibc: str_tester.c, pth_atfork1.c - test detived from GCC libgomp: tc17_sembar.c - performance tests derived from bzip2 or tinycc (with embedded GPL text in code): bz2.c, test_input_for_tinycc.c and tinycc.c
126 lines
4.9 KiB
C
126 lines
4.9 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Malloc replacement. replacemalloc_core.c ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2017 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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The GNU General Public License is contained in the file COPYING.
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*/
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#include "pub_core_basics.h"
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#include "pub_core_libcbase.h"
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#include "pub_core_libcprint.h"
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#include "pub_core_libcassert.h"
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#include "pub_core_tooliface.h" // VG_(needs)
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#include "pub_core_mallocfree.h"
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#include "pub_core_options.h"
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#include "pub_core_replacemalloc.h"
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/*------------------------------------------------------------*/
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/*--- Command line options ---*/
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/*------------------------------------------------------------*/
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/* Nb: the allocator always rounds blocks up to a multiple of
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VG_MIN_MALLOC_SZB.
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*/
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/* DEBUG: print malloc details? default: NO */
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Bool VG_(clo_trace_malloc) = False;
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/* Minimum alignment in functions that don't specify alignment explicitly.
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default: 0, i.e. use VG_MIN_MALLOC_SZB. */
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UInt VG_(clo_alignment) = VG_MIN_MALLOC_SZB;
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Bool VG_(replacement_malloc_process_cmd_line_option)(const HChar* arg)
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{
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if VG_INT_CLO(arg, "--alignment", VG_(clo_alignment)) {
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if (VG_(clo_alignment) < VG_MIN_MALLOC_SZB ||
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VG_(clo_alignment) > 4096 ||
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VG_(log2)( VG_(clo_alignment) ) == -1 /* not a power of 2 */)
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{
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VG_(fmsg_bad_option)(arg,
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"Alignment must be a power of 2 in the range %d..4096.\n",
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VG_MIN_MALLOC_SZB);
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}
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}
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else if VG_XACT_CLO(arg, "--xtree-memory=none",
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VG_(clo_xtree_memory), Vg_XTMemory_None) {}
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else if VG_XACT_CLO(arg, "--xtree-memory=allocs",
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VG_(clo_xtree_memory), Vg_XTMemory_Allocs) {}
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else if VG_XACT_CLO(arg, "--xtree-memory=full",
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VG_(clo_xtree_memory), Vg_XTMemory_Full) {}
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else if VG_STR_CLO (arg, "--xtree-memory-file",
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VG_(clo_xtree_memory_file)) {}
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else if VG_BOOL_CLO(arg, "--xtree-compress-strings",
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VG_(clo_xtree_compress_strings)) {}
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else if VG_BOOL_CLO(arg, "--trace-malloc", VG_(clo_trace_malloc)) {}
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else
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return False;
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return True;
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}
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SizeT VG_(malloc_effective_client_redzone_size)(void)
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{
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vg_assert(VG_(needs).malloc_replacement);
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return VG_(arena_redzone_size)(VG_AR_CLIENT);
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}
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/*------------------------------------------------------------*/
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/*--- Useful functions ---*/
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/*------------------------------------------------------------*/
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void* VG_(cli_malloc) ( SizeT align, SizeT nbytes )
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{
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// 'align' should be valid (ie. big enough and a power of two) by now.
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// VG_(arena_memalign)() will abort if it's not.
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if (VG_MIN_MALLOC_SZB == align)
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return VG_(arena_malloc) ( VG_AR_CLIENT, "replacemalloc.cm.1",
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nbytes );
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else
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return VG_(arena_memalign) ( VG_AR_CLIENT, "replacemalloc.cm.2",
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align, nbytes );
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}
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void VG_(cli_free) ( void* p )
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{
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VG_(arena_free) ( VG_AR_CLIENT, p );
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}
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// Useful for querying user blocks.
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SizeT VG_(cli_malloc_usable_size) ( void* p )
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{
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return VG_(arena_malloc_usable_size)(VG_AR_CLIENT, p);
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}
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Bool VG_(addr_is_in_block)( Addr a, Addr start, SizeT size, SizeT rz_szB )
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{
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return ( start - rz_szB <= a && a < start + size + rz_szB );
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}
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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