Philippe Waroquiers e2ba2f3671 add heuristics decreasing false possible "possible leaks" in c++ code. ...

The option --leak-check-heuristics=heur1,heur2,... can activate
various heuristics to decrease the number of false positive
"possible leaks" for C++ code. The available heuristics are
detecting valid interior pointers to std::stdstring, to new[] allocated
arrays with elements having destructors and to interior pointers pointing
to an inner part of a C++ object using multiple inheritance.

This fixes 280271 Valgrind reports possible memory leaks on still-reachable
std::string 

This has been tested on x86/amd64/ppc32/ppc64.

First performance measurements seems to show a neglectible impact on
the leak search.

More feedback welcome both on performance and functional aspects
(false positive 'possibly leaked' rate decrease and/or 
false negative 'possibly leaked' rate increase).

Note that the heuristic is not checking that the memory has been
allocated with "new" or "new[]", as it is expected that in some cases,
specific alloc fn are used for c++ objects instead of the standard new/new[].
If needed, we might add an option to check the alloc functions
to be new/new[].



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13582

2013-09-29 13:47:32 +00:00

..

clean_after_fork.c

GDB server:

2011-06-26 09:13:27 +00:00

filter_gdb

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

filter_make_empty

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

filter_memcheck_monitor

Improve filtering of backtrace noise in the memcheck bucket

2011-10-03 23:39:54 +00:00

filter_stderr

Minor GDBserver source tidying. Also a small usability fix: if

2011-06-18 08:28:04 +00:00

filter_vgdb

Filter around some debuginfo problems with ld.so on SLES11

2011-10-08 12:41:12 +00:00

fork_chain.c

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

gone.c

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

invoker

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

main_pic.c

Add support for PIC executables (e.g. firefox on Ubuntu 11) by adding

2011-06-26 09:26:48 +00:00

make_local_links

fix 319235 --db-attach=yes is broken with Yama ptrace scoping enabled

2013-05-09 21:29:23 +00:00

Makefile.am

fix 315545 (find_TTEntry_from_hcode): Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed

2013-02-24 23:16:58 +00:00

mcblocklistsearch.stderr.exp

(fixes bug 289939 wish: complete monitor cmd 'leak_check' with details

2012-01-26 23:13:52 +00:00

mcblocklistsearch.stderrB.exp

(fixes bug 289939 wish: complete monitor cmd 'leak_check' with details

2012-01-26 23:13:52 +00:00

mcblocklistsearch.stdinB.gdb

(fixes bug 289939 wish: complete monitor cmd 'leak_check' with details

2012-01-26 23:13:52 +00:00

mcblocklistsearch.vgtest

(fixes bug 289939 wish: complete monitor cmd 'leak_check' with details

2012-01-26 23:13:52 +00:00

mcbreak.stderr.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcbreak.stderrB.exp

Fix 324514 gdbserver monitor cmd output behaviour consistency + allow user

2013-09-04 21:42:43 +00:00

mcbreak.stdinB.gdb

Fix 324514 gdbserver monitor cmd output behaviour consistency + allow user

2013-09-04 21:42:43 +00:00

mcbreak.stdout.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcbreak.stdoutB.exp

Improvements for testing and compilation breakage for the GDB server

2011-05-10 11:01:07 +00:00

mcbreak.vgtest

Further fixes for GDB server on Thumb code:

2011-05-27 13:23:44 +00:00

mcclean_after_fork.stderr.exp

GDB server:

2011-06-26 09:13:27 +00:00

mcclean_after_fork.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcclean_after_fork.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcclean_after_fork.stdoutB.exp

GDB server:

2011-06-26 09:13:27 +00:00

mcclean_after_fork.vgtest

Skip gdbserver tests if ./configure did not find gdb.

2011-05-15 06:07:57 +00:00

mchelp.stderr.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mchelp.stderrB.exp

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mchelp.stdoutB.exp

add heuristics decreasing false possible "possible leaks" in c++ code.

2013-09-29 13:47:32 +00:00

mchelp.vgtest

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcinfcallRU.stderr.exp

Improvements for testing and compilation breakage for the GDB server

2011-05-10 11:01:07 +00:00

mcinfcallRU.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcinfcallRU.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcinfcallRU.vgtest

gdbserver: misc fixes (#214909 c 77)

2011-05-17 17:15:07 +00:00

mcinfcallWSRU.stderr.exp

Improvements for testing and compilation breakage for the GDB server

2011-05-10 11:01:07 +00:00

mcinfcallWSRU.stderrB.exp

Further fixes for GDB server on Thumb code:

2011-05-27 13:23:44 +00:00

mcinfcallWSRU.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcinfcallWSRU.vgtest

Further fixes for GDB server on Thumb code:

2011-05-27 13:23:44 +00:00

mcinvokeRU.stderr.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcinvokeRU.stderrB.exp

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcinvokeRU.stdoutB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcinvokeRU.vgtest

This patch by Philippe Waroquiers, philippe.waroquiers@skynet.be

2011-10-09 19:58:19 +00:00

mcinvokeWS.stderr.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcinvokeWS.stderrB.exp

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcinvokeWS.stdoutB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcinvokeWS.vgtest

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcleak.stderr.exp

Memcheck:

2011-06-26 12:41:33 +00:00

mcleak.stderrB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

mcleak.stdinB.gdb

Added a new parameter to the memcheck 'leak_check' GDB monitor command

2012-01-14 13:53:13 +00:00

mcleak.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

mcleak.vgtest

Improve filtering of backtrace noise in the memcheck bucket

2011-10-03 23:39:54 +00:00

mcmain_pic.stderr.exp

Add support for PIC executables (e.g. firefox on Ubuntu 11) by adding

2011-06-26 09:26:48 +00:00

mcmain_pic.stderrB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

mcmain_pic.stdinB.gdb

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

mcmain_pic.stdout.exp

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

mcmain_pic.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

mcmain_pic.vgtest

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

mcsignopass.stderr.exp

Minor GDBserver source tidying. Also a small usability fix: if

2011-06-18 08:28:04 +00:00

mcsignopass.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcsignopass.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcsignopass.stdoutB.exp

More gdbserver test fixes, from #214909 c 101:

2011-05-31 07:09:06 +00:00

mcsignopass.vgtest

Remove --vex-iropt-precise-memory-exns, implement --vex-iropt-register-updates

2012-08-01 22:03:12 +00:00

mcsigpass.stderr.exp

Minor GDBserver source tidying. Also a small usability fix: if

2011-06-18 08:28:04 +00:00

mcsigpass.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcsigpass.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mcsigpass.stdoutB.exp

More gdbserver test fixes, from #214909 c 101:

2011-05-31 07:09:06 +00:00

mcsigpass.vgtest

Remove --vex-iropt-precise-memory-exns, implement --vex-iropt-register-updates

2012-08-01 22:03:12 +00:00

mcvabits.stderr.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcvabits.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcvabits.stdinB.gdb

mips64: Wrong address size.

2013-07-17 09:56:24 +00:00

mcvabits.stdoutB.exp

Improvements for testing and compilation breakage for the GDB server

2011-05-10 11:01:07 +00:00

mcvabits.vgtest

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

mcwatchpoints.stderr.exp

add a test + assert for GDB bug bypassed in r13472

2013-07-30 20:26:06 +00:00

mcwatchpoints.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mcwatchpoints.stdinB.gdb

add a test + assert for GDB bug bypassed in r13472

2013-07-30 20:26:06 +00:00

mcwatchpoints.stdoutB.exp

add a test + assert for GDB bug bypassed in r13472

2013-07-30 20:26:06 +00:00

mcwatchpoints.vgtest

Further fixes for GDB server on Thumb code:

2011-05-27 13:23:44 +00:00

mssnapshot.stderr.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

mssnapshot.stderrB.exp

Fix 324514 gdbserver monitor cmd output behaviour consistency + allow user

2013-09-04 21:42:43 +00:00

mssnapshot.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

mssnapshot.stdoutB.exp

Improvements for testing and compilation breakage for the GDB server

2011-05-10 11:01:07 +00:00

mssnapshot.vgtest

Skip gdbserver tests if ./configure did not find gdb.

2011-05-15 06:07:57 +00:00

nlcontrolc.stderr.exp

Minor GDBserver source tidying. Also a small usability fix: if

2011-06-18 08:28:04 +00:00

nlcontrolc.stderrB.exp

Implement a GDB server in Valgrind. See #214909.

2011-05-06 21:02:55 +00:00

nlcontrolc.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

nlcontrolc.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlcontrolc.vgtest

gdbserver: misc fixes (#214909 c 77)

2011-05-17 17:15:07 +00:00

nlfork_chain.stderr.exp

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

nlfork_chain.stdout.exp

GDB server: fix tests following recent commits.

2011-07-04 22:00:41 +00:00

nlfork_chain.vgtest

Fix safe_fd exhaustion in fork chain caused by non closing of shared_mem_fd

2011-06-15 21:30:55 +00:00

nlgone_abrt.stderr.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_abrt.stderrB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_abrt.stdinB.gdb

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_abrt.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_abrt.vgtest

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_exit.stderr.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_exit.stderrB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_exit.stdinB.gdb

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_exit.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_exit.vgtest

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_return.stderr.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_return.stderrB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_return.stdinB.gdb

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_return.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlgone_return.vgtest

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlpasssigalrm.stderr.exp

Further fix 297078 : implement conversion between vki and gdb real time sig nr.

2012-03-30 20:25:26 +00:00

nlpasssigalrm.stderrB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlpasssigalrm.stdinB.gdb

Fix MacOS passsigalrm.c compilation error due to SIGRTMIN not existing on MacOS

2012-05-29 17:04:13 +00:00

nlpasssigalrm.stdoutB.exp

Fix 308341 vgdb should report process exit (or fatal signal)

2012-10-17 21:32:03 +00:00

nlpasssigalrm.vgtest

GDB server:

2011-06-26 09:36:38 +00:00

nlself_invalidate.stderr.exp

fix 315545 (find_TTEntry_from_hcode): Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed

2013-02-24 23:16:58 +00:00

nlself_invalidate.stderrB.exp

fix 315545 (find_TTEntry_from_hcode): Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed

2013-02-24 23:16:58 +00:00

nlself_invalidate.stdinB.gdb

fix 315545 (find_TTEntry_from_hcode): Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed

2013-02-24 23:16:58 +00:00

nlself_invalidate.vgtest

fix 315545 (find_TTEntry_from_hcode): Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed

2013-02-24 23:16:58 +00:00

nlsigvgdb.stderr.exp

GDB server:

2011-06-26 09:36:38 +00:00

nlsigvgdb.stderrB.exp

GDB server:

2011-06-26 09:36:38 +00:00

nlsigvgdb.stdinB.gdb

valgrind and tool mon. cmds prefixes changes + doc fixes + new vgdb option

2011-06-28 08:20:39 +00:00

nlsigvgdb.vgtest

GDB server:

2011-06-26 09:36:38 +00:00

passsigalrm.c

Fix MacOS passsigalrm.c compilation error due to SIGRTMIN not existing on MacOS

2012-05-29 17:04:13 +00:00

README_DEVELOPERS

Spelling fixes: developpers -> developers; curiosly -> curiously

2012-07-28 13:06:45 +00:00

self_invalidate.c

fix 315545 (find_TTEntry_from_hcode): Assertion '(UChar*)sec->tt[tteNo].tcptr <= (UChar*)hcode' failed

2013-02-24 23:16:58 +00:00

simulate_control_c

Use -s USR1 instead of -10 to send SIGUSR1 signal

2012-08-15 13:27:23 +00:00

sleepers.c

Improvements for testing and compilation breakage for the GDB server

2011-05-10 11:01:07 +00:00

t.c

gdbserver_tests/t.c: Fixed two occurrences of the same typo.

2011-05-15 05:44:59 +00:00

watchpoints.c

add a test + assert for GDB bug bypassed in r13472

2013-07-30 20:26:06 +00:00