Hi!
----
Attached (as "valgrind381_libast_allocator001.diff.txt") is a patch
for valgrind 3.8.1 which enables valgrind (again) to recognise the
libast memory allocator (long ago it worked out-of-the-box but somehow
it got broken).
The basic idea of the fix is to teach valgrind that the matching
memory allocation/deallocation functions are prefixed with |_ast_*()|.
Usage:
-- snip --
wget 'http://valgrind.org/downloads/valgrind-3.8.1.tar.bz2'
bzcat < 'valgrind-3.8.1.tar.bz2' | tar -xf -
cd valgrind-3.8.1
patch -p1 < "valgrind381_libast_allocator001.diff.txt"
configure --prefix=$HOME/vg 2>&1 | tee -a buildlog.log
make all | tee -a buildlog.log
make install | tee -a buildlog.log
-- snip --
... there should then be a new version of "valgrind" installed in
$HOME/vg/bin/valgrind which can instrument/check libast-based
applications (erm... it's 2:52am here... I only checked binaries with
libast staically linked... I didn't check binaries with a dynamically
linked libast.so.1 yet... ;-/ )
Good news: valgrind now works again for libast-based applications
Bad news: there are *MANY* valgrind hits in ast-ksh.2013-05-03 (I'll
file follow-up bugs) ... ;-(
----
Bye,
Roland
--
__ . . __
(o.\ \/ /.o) [email protected]
\__\/\/__/ MPEG specialist, C&&JAVA&&Sun&&Unix programmer
/O /==\ O\ TEL +49 641 3992797
(;O/ \/ \O;)
diff -r -u valgrind-3.8.1_original/configure valgrind-3.8.1/configure
--- valgrind-3.8.1_original/configure 2012-09-18 21:19:23.000000000 +0200
+++ valgrind-3.8.1/configure 2013-05-17 02:11:18.875880006 +0200
@@ -6594,7 +6594,7 @@
DEFAULT_SUPP="glibc-2.34567-NPTL-helgrind.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="glibc-2.X-drd.supp ${DEFAULT_SUPP}"
;;
- 2.16)
+ 2.16|2.17)
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: 2.16 family" >&5
$as_echo "2.16 family" >&6; }
diff -r -u
valgrind-3.8.1_original/coregrind/m_replacemalloc/vg_replace_malloc.c
valgrind-3.8.1/coregrind/m_replacemalloc/vg_replace_malloc.c
--- valgrind-3.8.1_original/coregrind/m_replacemalloc/vg_replace_malloc.c
2012-08-17 08:59:55.000000000 +0200
+++ valgrind-3.8.1/coregrind/m_replacemalloc/vg_replace_malloc.c
2013-05-17 02:40:10.456307573 +0200
@@ -997,6 +997,16 @@
#endif
+ALLOC_or_NULL(NONE, _ast_malloc, malloc);
+FREE(NONE, _ast_free, free);
+FREE(NONE, _ast_cfree, free);
+CALLOC(NONE, _ast_calloc);
+REALLOC(NONE, _ast_realloc);
+MEMALIGN(NONE, _ast_memalign);
+POSIX_MEMALIGN(NONE, _ast_posix_memalign);
+VALLOC(NONE, _ast_valloc);
+MALLINFO(NONE, _ast_mallinfo);
+
/*------------------ Darwin zone stuff ------------------*/
#if defined(VGO_darwin)
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