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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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00ffec50e5
and VG_(am_get_segment_starts) to indicate which segments
should be collected. That should solve the following problem:
in m_main.c we used to:
seg_starts = VG_(get_segment_starts)( &n_seg_starts );
for (i = 0; i < n_seg_starts; i++) {
Word j, n;
NSegment const* seg
= VG_(am_find_nsegment)( seg_starts[i] );
vg_assert(seg);
if (seg->kind == SkFileC || seg->kind == SkAnonC) {
...
// ... dynamic memory allocation for valgrind
...
}
This caused the vassert(seg) to fire because the dynamic memory
allocation further down the loop changed segments such that a
valgrind segment which used to be non-SkFree suddenly became
SkFree and hence VG_(am_find_nsegment) returned NULL. Whoom.
With this revision we only collect the segments we're really
interested in. For the example above that is all client segments.
So if V allocates memory -- fine. That will not change the layout
of client segments.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14949
49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Services layered on top of m_aspacemgr. pub_tool_aspacehl.h ---*/
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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) 2009-2013 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, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_TOOL_ASPACEHL_H
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#define __PUB_TOOL_ASPACEHL_H
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#include "pub_tool_basics.h" // VG_ macro
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// Extract from aspacem a vector of the current segment start
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// addresses. The vector is dynamically allocated and should be freed
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// by the caller when done. REQUIRES m_mallocfree to be running.
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// Writes the number of addresses required into *n_acquired.
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// Only those segments are considered whose kind matches any of the kinds
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// given in KIND_MASK.
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extern Addr* VG_(get_segment_starts)( UInt kind_mask, /*OUT*/Int* n_acquired );
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#endif // __PUB_TOOL_ASPACEHL_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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