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909 Commits

Author SHA1 Message Date
Nicholas Nethercote
250dd17646 Add a comment with a definitive account of when Memcheck does (and does not, 
but should do) undefined value checks.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6750
 2007-05-24 23:14:41 +00:00
Julian Seward
b91b51b42b Merge (from 3.2 branch) r6743 (Edit the manual to bring it up to date 
and make some of the wording a bit more professional sounding.)



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6745
 2007-05-23 21:58:33 +00:00
Dirk Mueller
40de8b88ed wrap env related functions to be able to track undefined 
values better


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6706
 2007-04-19 09:47:32 +00:00
Julian Seward
458d626be4 Use a 64-bit counter to keep track of the total number of bytes 
allocated, rather than SizeT which is word-sized.  Your average C++
lardware can easily turn over more than 4G in total in a half hour run
on a 32-bit machine, in which case the counter wraps around.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6649
 2007-03-14 11:57:37 +00:00
Julian Seward
51c70bbf4c Back out r6640; I'm pretty sure it is the wrong thing to do now. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6648
 2007-03-14 11:55:28 +00:00
Julian Seward
34454d5464 Add a custom stderr filter for memcheck/tests/amd64/defcfaexpr. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6644
 2007-03-12 01:29:31 +00:00
Julian Seward
bd78cc2d2e Add a test for int3 on x86 (from Peter Maydell) 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6643
 2007-03-12 00:42:26 +00:00
Julian Seward
599d74dcf0 Add a test for int3 on amd64 (from Peter Maydell) 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6642
 2007-03-12 00:27:30 +00:00
Julian Seward
e9a5b6ad4e It appears glibc-2.5's getenv() function steps along environment 
strings in 16-bit chunks, which can cause false errors in some cases
(sigh).  So do the usual thing and replace it.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6640
 2007-03-11 13:00:34 +00:00
Nicholas Nethercote
ace4f264b9 wibble 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6639
 2007-03-10 02:27:44 +00:00
Julian Seward
9218c18f45 Add a regression test for unwind handling of DW_CFA_def_cfa_expression. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6628
 2007-02-28 13:27:37 +00:00
Julian Seward
7efbc7213b Track recent XArray changes. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6625
 2007-02-27 22:36:14 +00:00
Julian Seward
4cb951158d Add an intercept for __memmove_chk (another glibc 2.5 artefact) 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6608
 2007-02-23 09:03:26 +00:00
Julian Seward
56b7f5a6c9 Work around gcc limitations on aix. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6579
 2007-02-09 02:37:11 +00:00
Julian Seward
5c1eb23d61 __stpcpy_chk: sync with Dirk's original proposal, and show origins 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6556
 2007-01-28 06:32:01 +00:00
Julian Seward
dfad5c3381 Intercept __stpcpy_chk. (Dirk Mueller) 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6553
 2007-01-27 00:49:44 +00:00
Julian Seward
422c3d7eab Add a test that very long function names are safely truncated in 
memcheck's XML output.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6541
 2007-01-19 20:28:44 +00:00
Julian Seward
2ee6ebe4bf Intercept mempcpy also in ld.so.1. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6537
 2007-01-18 18:01:45 +00:00
Julian Seward
648b3b2707 Intercept _intel_fast_memcpy in the main executable. Partial fix for 
#139667.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6526
 2007-01-16 21:42:28 +00:00
Julian Seward
43fcd4e09e Make sse1-friendly. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6525
 2007-01-16 20:01:15 +00:00
Julian Seward
0bdcfd7702 Add tests to check that memcheck does not give a false error for 'xor 
%reg,%reg' (in various forms) when %reg contains undefined data.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6524
 2007-01-16 19:15:19 +00:00
Nicholas Nethercote
824abc79ce Fix a bug reported by Bruce Lowekamp involving the interaction of 
--gen-suppressions with leak checking.  Added a regtest for it.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6514
 2007-01-12 23:59:50 +00:00
Julian Seward
0e343fea86 Regtest for FXSAVE on amd64. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6499
 2007-01-10 04:57:27 +00:00
Julian Seward
172505c978 Update copyright dates. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6488
 2007-01-08 06:01:59 +00:00
Julian Seward
b76cb7d9e6 Replace bcmp in ld.so.1. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6479
 2007-01-06 06:30:48 +00:00
Julian Seward
85204d209d Avoid printf in the recursive routines, so that the intercept of 
mempcpy which is called from printf does not mess up the
carefully-balanced call-stack overflow checks that this test does on
ppc64-linux.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6471
 2007-01-01 22:07:58 +00:00
Julian Seward
20b41c0c23 Provide a replacement for mempcpy. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6469
 2006-12-31 18:55:56 +00:00
Julian Seward
daf075a233 Intercept/replace glibc-2.5's __strcpy_chk function for the usual 
reasons: it reads word-sized chunks from memory and so produces lots
of errors in SuSE 10.2 (amd64).



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6462
 2006-12-31 00:22:30 +00:00
Julian Seward
37c3d2ead6 Merge (from 3_2_BRANCH) r6457/8 (Support 64k pages on ppc32/64-linux 
(Jakub Jelink, Dave Nomura) )



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6459
 2006-12-30 17:45:08 +00:00
Nicholas Nethercote
422afe504a Remove dead code. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6449
 2006-12-27 23:19:10 +00:00
Julian Seward
ac99d46578 Handle new primop Iop_SarN8x8 introduced in vex r1702. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6441
 2006-12-27 01:16:58 +00:00
Julian Seward
1083ded7e2 Non-functional commit: track IR renaming in vex r1689. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6416
 2006-12-24 02:24:11 +00:00
Julian Seward
0cc651608a Add missing case, apparently not very popular :-) 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6406
 2006-12-17 14:20:31 +00:00
Nicholas Nethercote
d162731a2c Completely overhauled the internals of Memcheck's error handling. All the 
different error kinds were reusing the same struct for storing their
details.  Each one used some but not all the fields, and the AddrInfo was
similar, and it was very confusing.

So I changed MC_Error and AddrInfo to be tagged unions, like Vex's IRExpr and
IRStmt types.  The resulting code is a little more verbose but much easier
to understand.  I also split up several error kinds, which also made things
simpler.  The user-visible behaviour is identical except for a couple of
very minor things that I've documented in the NEWS file for the 3.3.0
release.

Ideally I'd get rid of the Addr and Char* fields in the core Error type,
which are not always used, and do them similarly within tools.  But that
would require changing the core/tool interface, so I'm leaving it for the
moment.




git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6402
 2006-12-16 00:54:12 +00:00
Nicholas Nethercote
52dfe4cb39 Remove defunct constant. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6401
 2006-12-15 04:37:25 +00:00
Julian Seward
bd211db8f5 Include missing files in tarball. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6397
 2006-12-13 14:35:03 +00:00
Julian Seward
dfa95416d2 Fix error in aix zeropage handling. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6396
 2006-12-13 03:16:40 +00:00
Julian Seward
043bf89f2a Minor tidying for regtests on AIX. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6395
 2006-12-12 01:38:15 +00:00
Julian Seward
b650be145e Fix various regtests, mostly by adding 64-bit outputs. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6394
 2006-12-11 03:23:41 +00:00
Julian Seward
b0c6a889c2 Update a couple of expected outputs. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6390
 2006-12-11 00:19:28 +00:00
Julian Seward
18f9d5c215 Update some expected outputs following r6382. There may be more .. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6383
 2006-12-06 18:53:07 +00:00
Julian Seward
80a670f93c Fix confusing and contradictory "Rerun with ..." messages printed at 
the end of MC_(do_detect_memory_leaks).  This causes various leak
regression tests to fail; will fix shortly.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6382
 2006-12-06 18:05:54 +00:00
Julian Seward
34a8fb5292 Fix suppression-matching bogon (Paul Floyd). 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6378
 2006-12-06 03:36:24 +00:00
Julian Seward
7fe15db883 Make it possible to suppress, and auto-generate suppressions for, 
"User" errors; that is, errors resulting from client requests (check
memory range is addressible / defined).



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6374
 2006-11-28 00:15:35 +00:00
Nicholas Nethercote
2c3a6359bb Use the newly-added dopyIRBBExceptStmts() in tools. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6372
 2006-11-25 22:38:11 +00:00
Julian Seward
7299831d35 Add a regtest for the false-uninitialised-value-report bug fixed by 
vex r1675.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6354
 2006-11-14 18:36:02 +00:00
Nicholas Nethercote
0399584b08 Fix a man page bug. 
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6345
 2006-11-03 19:54:21 +00:00
Julian Seward
68475a1dc5 Fix bug in memcheck's instrumenter introduced in r6319. Big comment 
in the code explains it.  Sigh.  Why can't anything be simple?



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6322
 2006-10-19 13:22:16 +00:00
Julian Seward
a9a0bafb27 Observe the rule that requires all instrumenters to copy verbatim any 
IR preamble preceding the first IMark.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6319
 2006-10-18 12:41:55 +00:00
Julian Seward
c7b05679fe - Fix a subtle alignment-check bug I introduced into mc_die_mem_stack_12 
- Add comments to many of the functions to make explicit their 
  alignment-check logic



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6314
 2006-10-17 23:14:42 +00:00