82 Commits

Author SHA1 Message Date
Philippe Waroquiers
ab773096df Fix 338252 - building valgrind with -flto (link time optimisation) fails
* Addition of a new configure option --enable-lto=yes or --enable-lto=no
  Default value is --enable-lto=no, as the build is significantly slower,
  so is not appropriate for valgrind development : this should be used
  only on buildbots and/or by packagers.

* Some files containins asm functions have to be compiled without lto:
    coregrind/m_libcsetjmp.c
    coregrind/m_main.c
  If these are compiled with lto, that gives undefined symbols at link time.
  The files to compile without lto are
    coregrind/m_libcsetjmp.c
    coregrind/m_main.c

  To compile these files with other options, a noinst target lib is defined.
  The objects of this library are then added to the libcoregrind.

* memcheck/mc_main.c : move the handwritten asm helpers to mc_main_asm.c.
  This avoids undefined symbols on some toolchains. Due to this,
  the preprocessor symbols that activate the fast or asm memcheck helpers
  are moved to mc_include.h
  Platforms with handwritten helpers will also have the memcheck primary
  map defined non static.

* In VEX, auxprogs/genoffsets.c also has to be compiled without lto,
  as the asm produced by the compiler is post-processed to produce
  pub/libvex_guest_offsets.h. lto not producing asm means the generation
  fails if we used -flto to compile this file.

* all the various Makefile*am are modified to use LTO_CFLAGS for
  (most) targets. LTO_CFLAGS is empty when --enable-lto=no,
  otherwise is set to the flags needed for gcc.
  If --enable-lto=no, LTO_AR and LTO_RANLIB are the standard AR and RANLIB,
  otherwise they are the lto capable versions (gcc-ar and gcc-ranlib).

* This has been tested on:
    debian 9.4/gcc 6.3.0/amd64+x86
    rhel 7.4/gcc 6.4.0/amd64
    ubuntu 17.10/gcc 7.2.0/amd64+x86
    fedora26/gcc 7.3.1/s390x

  No regressions on the above.
2018-03-18 13:53:38 +01:00
Philippe Waroquiers
1eaff3bbd7 remove obsolete/non working ways to modify CFLAGS in memcheck/Makefile.am
memcheck/Makefile.am contains 2 CFLAGS modifications lines that
are not working.
Remove these confusing lines.

(I have checked that the proper flags are still used for the 2 involved files)
2018-03-10 13:54:24 +01:00
Julian Seward
26f0bb05e7 Be more careful to separate build flags for the preload shared objects
as opposed to the valgrind code proper.  In particular, make sure that
-mpreferred-stack-boundary=2 does not get used for the preload shared
objects, since that can cause the stack to become misaligned and leads
to segfaults.  Modified version of a patch from Matthias Schwarzott
(zzam@gentoo.org).  Fixes #324050.

Also, fix the configure check in configure.ac for
-mpreferred-stack-boundary=2 so that it checks whether this is
allowable for 32-bit code generation even on 64-bit (x86) hosts.  This
check was wrong before now and led to 32-bit builds on 64-bit hosts
generating poorer code for speed critical helper functions (eg
helperc_LOADV32le) than on 32-bit builds on 32-bit hosts.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14471
2014-09-05 20:00:22 +00:00
Florian Krohm
b9f5142112 Add comments from Julian as to why mc_main.c and mc_replace_strmem.c
deserve special compilation treatment.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12575
2012-05-22 01:41:48 +00:00
Philippe Waroquiers
c953f410c8 Fix 247386 make perf does not run all performance tests :
* move memcheck/perf/many-loss-records test to perf directory
       massif/perf/many-xpts test to perf directory
* modified many-loss-records.vgperf and many-xpts.vgperf,
  so as to have tool specific options prefixed with their tool
* remove directory memcheck/perf and massif/perf (containing no test anymore)



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12315
2011-12-23 11:42:20 +00:00
Nicholas Nethercote
6fd0eb7b07 Merged the MACOSX106 branch to the trunk. Merge command:
svn merge -r11143:HEAD svn://svn.valgrind.org/valgrind/branches/MACOSX106

There were some easy-to-resolve conflicts.

Then I had to fix up coregrind/link_tool_exe*.in -- those files had been
added independently on both the trunk and the branch, AFAICT.  I just
overwrote the trunk versions with the branch versions.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11194
2010-07-01 00:20:20 +00:00
Julian Seward
05124264b0 Remove link_tool_exe.c and replace it with perl scripts that do the
same thing.  A .c file doesn't work for cross compilation.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11174
2010-06-13 22:13:58 +00:00
Julian Seward
c46347280b Add a new program (link_tool_exe.c) and use this to link the tool
executables.  Gets rid of the linker script kludgery and uniformly
uses -Ttext=0x38000000 (or whatever) on Linux, so as to accomodate
both traditional ld and gold.  Should fix #193413 although I have
been unable to test it.  Using a whole new program seems like
overkill, but this is infrastructure to support static linking of
the tool executables on MacOS too.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11141
2010-06-02 00:31:34 +00:00
Nicholas Nethercote
dbcea71779 More docs build tweaks:
- Actually remove the dead docs/images/massif*.png files (this was meant to
  happen in r10720).

- Inline $TOOL/docs/Makefile.am into $TOOL/Makefile.am for all 10 tools.  10
  fewer Makefile.am files FTW!


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10721
2009-08-05 08:08:18 +00:00
Nicholas Nethercote
b05a2a18d7 This commit merges the BUILD_TWEAKS branch onto the trunk. It has the
following improvements:

- Arch/OS/platform-specific files are now included/excluded via the
  preprocessor, rather than via the build system.  This is more consistent
  (we use the pre-processor for small arch/OS/platform-specific chunks
  within files) and makes the build system much simpler, as the sources for
  all programs are the same on all platforms.

- Vast amounts of cut+paste Makefile.am code has been factored out.  If a
  new platform is implemented, you need to add 11 extra Makefile.am lines.
  Previously it was over 100 lines.

- Vex has been autotoolised.  Dependency checking now works in Vex (no more
  incomplete builds).  Parallel builds now also work.  --with-vex no longer
  works;  it's little use and a pain to support.  VEX/Makefile is still in
  the Vex repository and gets overwritten at configure-time;  it should
  probably be renamed Makefile-gcc to avoid possible problems, such as
  accidentally committing a generated Makefile.  There's a bunch of hacky
  copying to deal with the fact that autotools don't handle same-named files
  in different directories.  Julian plans to rename the files to avoid this
  problem.

- Various small Makefile.am things have been made more standard automake
  style, eg. the use of pkginclude/pkglib prefixes instead of rolling our
  own.

- The existing five top-level Makefile.am include files have been
  consolidated into three.

- Most Makefile.am files now are structured more clearly, with comment
  headers separating sections, declarations relating to the same things next
  to each other, better spacing and layout, etc.

- Removed the unused exp-ptrcheck/tests/x86 directory.

- Renamed some XML files.

- Factored out some duplicated dSYM handling code.

- Split auxprogs/ into auxprogs/ and mpi/, which allowed the resulting
  Makefile.am files to be much more standard.

- Cleaned up m_coredump by merging a bunch of files that had been
  overzealously separated.

The net result is 630 fewer lines of Makefile.am code, or 897 if you exclude
the added Makefile.vex.am, or 997 once the hacky file copying for Vex is
removed.  And the build system is much simpler.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10364
2009-06-24 00:37:09 +00:00
Nicholas Nethercote
07045477ca Merge the DARWIN branch onto the trunk.
I tried using 'svn merge' to do the merge but it did a terrible job and
there were bazillions of conflicts.  So instead I just took the diff between
the branch and trunk  at r10155, applied the diff to the trunk, 'svn add'ed
the added files (no files needed to be 'svn remove'd) and committed.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10156
2009-05-28 01:53:07 +00:00
Nicholas Nethercote
fbe37d96a8 Fix bug #191182, where printing the leak checker results was really slow if
there were a lot of loss records.

The fix was:
- Avoid the O(m * n) looping over the chunks when creating the loss
  records, by putting loss records into an OSet instead of a list, which
  makes duplicate detection for each chunk an O(log n) operation instead of
  an O(n) operation.
- Avoid the looping over loss records which was used to do a poor
  man's sort, but was O(n^2).  Instead copy pointers to the loss records
  from the OSet into an array and sort it normally with VG_(ssort) (n log n,
  usually) before printing.

This approach was similar to that used in the patch Philippe attached to the
bug report.

Other changes:
- Added Philippe's test programs in the new memcheck/perf directory.  It
  used to take 57s on my machine, now it takes 1.6s.
- Cleaned up massif/perf/Makefile.am to be consistent with other Makefiles.
- Improved some comments relating to VgHashTable and OSet.
- Avoided a redundant traversal of the hash table in VG_(HT_to_array), also
  identified by Philippe..
- Made memcheck/tests/mempool's results independent of the pointer size, and
  thus was able to remove its .stderr.exp64 file.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9781
2009-05-06 06:15:55 +00:00
Nicholas Nethercote
ed322feb84 Rename all the arch/OS/platform-related variables in configure.in to make it
clearer what they mean:
- They all have VGCONF_ prefixes now, to indicate they come out of
  configure.in (and are clearly distinguished from the VGA_/VGO_/VGP_
  #defines passed in to C files).
- The ones that refer to the primary *or* secondary platform have _INCLUDES_
  in them.
- The ones that are in all-caps have a _CAPS suffix.

So, for example, what was VGP_X86_LINUX is now
VGCONF_PLATFORMS_INCLUDE_X86_LINUX, which is more verbose but also a lot
clearer.  The names of the #defines used in the C files (VGA_x86, VGO_linux,
etc) are unchanged.

cputest.c: changed to reflect the Valgrind installation's capabilities,
rather than the machine's capabilities.  In particular, if
--enable-only32bit is used on a 64-bit machine, then this program will claim
to only support 32-bits.  Also use the VGA/VGO/VGP macros which are clearer
than the __i386__ ones.  (This is partially merged from the DARWIN branch.)

configure.in: clean up the comments, distinguish different sections more
clearly, and generally make it more readable.

valgrind.pc.in: try to make this more accurate.  I doubt anyone's using it.
It doesn't appear to be set up to handle dual-architecture builds.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@9031
2009-01-22 21:56:32 +00:00
Julian Seward
4d1716321e Move the error management code for Memcheck into a new file,
mc_errors.c, as it is relatively self contained.  This reduces the
size of mc_main.c by about 1350 lines.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7986
2008-05-02 10:33:15 +00:00
Julian Seward
4cae5c3ed5 Merge branches/OTRACK_BY_INSTRUMENTATION into the trunk. This adds
support to Memcheck for tracking the origin of uninitialised values,
if you use the --track-origins=yes flag.

This currently causes some Memcheck regression tests to fail, because
they now print an extra line of advisory text in their output.  This
will be fixed.

The core-tool interface is slightly changed.  The version number for
the interface needs to be incremented.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7982
2008-05-01 20:24:26 +00:00
Julian Seward
713b2d46c0 Merge r6086:
Makefile.am changes for AIX5.  Almost all boilerplate stuff fitting in
with the existing factorisation scheme.  The only change of interest
is that configure.in now generates automake symbols of name
VGP_platform and VGO_os, whereas previously it just made VG_platform
which was a bit inconsistent with the VGP/VGO/VGA scheme used in C
code.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@6242
2006-10-17 00:56:43 +00:00
Nicholas Nethercote
991367c922 Merge in the COMPVBITS branch to the trunk. This is a big change to
Memcheck, replacing the 9-bits-per-byte shadow memory representation to a
2-bits-per-byte representation (with possibly a little more on the side) by
taking advantage of the fact that extremely few memory bytes are partially
defined.

For the SPEC2k benchmarks with "test" inputs, this speeds up Memcheck by a
(geometric mean) factor of 1.20, and reduces the size of shadow memory by a
(geometric mean) factor of 4.26.

At the same time, Addrcheck is removed.  It hadn't worked for quite some
time, and with these improvements in Memcheck its raisons-d'etre have
shrivelled so much that it's not worth the effort to keep around.  Hooray!

Nb: this code hasn't been tested on PPC.  If things go wrong, look first in
the fast stack-handling functions (eg. mc_new_mem_stack_160,
MC_(helperc_MAKE_STACK_UNINIT)).


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5791
2006-03-27 11:37:07 +00:00
Julian Seward
8ba9a34088 Add framework for ppc64 support. Apologies in advance for the
inevitable breakage to other platforms.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5250
2005-11-29 13:05:56 +00:00
Tom Hughes
b5c033e906 Dual architecture support - this commit is a major rework of the build
system that allows multiple copies of valgrind to be built so that we
can build both x86 and amd64 versions of the tools on amd64 machines.

The launcher is then modified to look at the program being run and
decide which tool to use to run it.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5027
2005-11-07 15:24:38 +00:00
Julian Seward
cc8ccbbfb4 This commit merges in changes from branches/ASPACEM (specifically,
changes from r4341 through r4787 inclusive).  That branch is now dead.
Please do not commit anything else to it.

For the most part the merge was not troublesome.  The main areas of
uncertainty are:

- build system: I had to import by hand Makefile.core-AM_CPPFLAGS.am
  and include it in a couple of places.  Building etc seems to still
  work, but I haven't tried building the documentation.

- syscall wrappers: Following analysis by Greg & Nick, a whole lot of
  stuff was moved from -generic to -linux after the branch was created.
  I think that is satisfactorily glued back together now.

- Regtests: although this appears to work, no .out files appear, which
  is strange, and makes it hard to diagnose regtest failures.  In
  particular memcheck/tests/x86/scalar.stderr.exp remains in a 
  conflicted state.

- amd64 is broken (slightly), and ppc32 will be unbuildable.  I'll
  attend to the former shortly.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4789
2005-09-27 19:20:21 +00:00
Nicholas Nethercote
ed0b56fd2d Removed mc_asm.h, which is no longer needed since Memcheck has no
assembly files any more.  Moved MC_() into mc_include.h.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3692
2005-05-13 21:39:45 +00:00
Nicholas Nethercote
eb32bc7045 Modularised the malloc/free stuff into two modules: m_mallocfree for the
malloc/free implementation, and m_replacemalloc with the stuff for the tools
that replace malloc with their own version.  Previously these two areas of
functionality were mixed up somewhat.




git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3648
2005-05-10 02:47:21 +00:00
Nicholas Nethercote
726615f35d Rename mac_needs.c as mac_shared.c, which is much more sensible and
actually matches mac_shared.h.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3645
2005-05-09 01:13:44 +00:00
Nicholas Nethercote
020fa40bb0 Moved mc_errcontext.c into mc_main.c, since it was very small and there was
no benefit in having it separate.  This allows some exports to be removed
from mc_include.h.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3641
2005-05-08 18:34:59 +00:00
Julian Seward
7cad1b7f65 Mostly finish fixing fast-path cases. Also enhance sanity checking.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3541
2005-04-22 16:29:19 +00:00
Nicholas Nethercote
a551dd690a Reinstate Addrcheck. Some of the tests fail -- some of the leak ones
because the added VG_(find_root_memory)() is just a stub.  And there's a
problem with overlap checking that I haven't worked out yet.  Still it's a
start.  The commit also brings Memcheck back into the build process,
although mc_main.c is entirely commented out at the moment.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3352
2005-03-14 01:16:05 +00:00
Nicholas Nethercote
fdccda9d04 Removed mc_helpers.S, which is no longer used.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3104
2004-11-26 10:35:44 +00:00
Nicholas Nethercote
40de233989 Changed name of tool shared objects from vgskin_XXX.so to vgtool_XXX.so.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3054
2004-11-22 16:58:05 +00:00
Nicholas Nethercote
b55751404f Improved Memcheck's error checking messages in two significant ways:
- All memory-related errors are now clear whether they are caused by
  unaddressable or uninitialised memory.  (Previously, writes were
  clearly addressability errors, but reads could be either.)  Mostly
  done by replacing the 'isWrite' field in MAC_Error with 'isUnaddr'.
  Also, mc_check_readable() now indicates not just if an error occurred,
  but what kind of error (ie. addressability or definedness).

- Put machinery into place in the core to inform tools when registers
  are being read by the core -- ie. a 'pre_reg_read' event.  Most
  notably, this facilitates syscall scalar arg definedness checking for
  Memcheck.  Currently this is only working for read(), write(), exit()
  and exit_group(), but it will be extended as the syscalls are
  overhauled as part of the arch-abstraction work.

  A consequence of this is that the ParamErr messages have changed.  This:

    Syscall param write(buf) contains uninitialised byte(s)

  now means that the pointer 'buf' is partially undefined.  If the memory
  pointed to by 'buf' is partially undefined or unaddressable, it says one of:

    Syscall param write(buf) points to uninitialised byte(s)
    Syscall param write(buf) points to unaddressable byte(s)

  The docs have been updated accordingly.

  I also added a couple of regression tests.

These two change sare notable for being the first improvements to
Memcheck's checking/errors in a long time.

I also folded mc_clientreqs.c into mc_main.c, which saves exporting a
whole bunch of things that are not used anywhere else.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2949
2004-11-08 19:20:09 +00:00
Nicholas Nethercote
d343add11a Build vg_replace_malloc.c into a library, because it makes the Makefiles a bit
neater.  Also remove some dodgy CFLAGS+= lines.

I had to change the expected output of pth_once.c, because the change has
altered the order of the (non-deterministic) output.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2825
2004-10-20 18:40:40 +00:00
Nicholas Nethercote
90369deb78 Arch-abstraction:
- renamed "vg_constants.h" as "core_asm.h".
- renamed "vg_constants_skin.h" as "tool_asm.h".
- renamed "mc_constants.h" as "mc_asm.h".


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2650
2004-09-02 15:37:39 +00:00
Nicholas Nethercote
acd57ac595 Use Makefile.am includes. This gets rid of 110 lines of repetitive Makefile.am
cruft, yay!


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2641
2004-09-01 23:20:49 +00:00
Nicholas Nethercote
1bd17a3d0f Remove a bunch of unnecessary -DVG_LIBDIR="\"$(libdir)"\" arguments in
Makefile.am files.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2597
2004-08-23 14:02:03 +00:00
Tom Hughes
a2a0946b8a Make VPATH builds work so that valgrind can be built in a different
directory from the source tree. This resolves bug 83040.

Based on patch from Ralf Wildenhues <Ralf.Wildenhues@gmx.de>.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2450
2004-06-29 09:45:37 +00:00
Jeremy Fitzhardinge
82aaa16ef9 Fix "make distcheck", and also make sure that the generated archive
contains everything needed to "make regtest".  Bump the version.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2308
2004-03-12 10:51:39 +00:00
Jeremy Fitzhardinge
918c3a7b7e This jumbo-checkin is the Full Virtualization checkin. This eliminates
Valgrind's dependency on the dynamic linker for getting started, and
instead takes things into its own hands.

This checkin doesn't add much in the way of new functionality, but it
is the basis for all future work on Valgrind.  It allows us much more
flexibility in implementation, and well as increasing the reliability
of Valgrind by protecting it more from its clients.

This patch requires some changes to tools to update them to the changes
in the tool API, but they are straightforward.  See the posting "Heads
up: Full Virtualization" on valgrind-developers for a more complete
description of this change and its effects on you.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2118
2003-12-16 02:05:15 +00:00
Nicholas Nethercote
ca84f991d3 Added overlap checking to Addrcheck, mostly just moving things around. In
particular, renamed mc_replace_strmem.c as mac_replace_strmem.c;  the 'mac'
prefix indicates it's shared between Memcheck and Addrcheck.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1774
2003-07-22 09:12:33 +00:00
Nicholas Nethercote
83ef1ca2ed Some Makefile.am changes. Lots of them affected:
- changed deprecated INCLUDES variable to AM_CPPFLAGS

- moved the -DVG_LIBDIR definition from AM_CFLAGS into AM_CPPFLAGS

- generally neatened them up a bit -- removed old commented out stuff, fixed a
  couple of other minor things

Everything works for me, hopefully it won't break things for anyone else...


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1680
2003-06-12 14:13:05 +00:00
Dirk Mueller
02b63b3ba8 reapply automake fixes. make check will now generate the binaries which
are only required for regression testing.

If this breaks something, please mail me first instead of reverting.
Thank you.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1530
2003-04-17 17:00:43 +00:00
Nicholas Nethercote
982fa6481a -----------------------------------------------------------------------------
overview
-----------------------------------------------------------------------------
Previously Valgrind had its own versions of malloc() et al that replaced
glibc's.  This is necessary for various reasons for Memcheck, but isn't needed,
and was actually detrimental, to some other skins.  I never managed to treat
this satisfactorily w.r.t the core/skin split.

Now I have.  If a skin needs to know about malloc() et al, it must provide its
own replacements.  But because this is not uncommon, the core provides a module
vg_replace_malloc.c which a skin can link with, which provides skeleton
definitions, to reduce the amount of work a skin must do.  The skeletons handle
the transfer of control from the simd CPU to the real CPU, and also the
--alignment, --sloppy-malloc and --trace-malloc options.  These skeleton
definitions subsequently call functions SK_(malloc), SK_(free), etc, which the
skin must define;  in these functions the skin can do the things it needs to do
about tracking heap blocks.

For skins that track extra info about malloc'd blocks -- previously done with
ShadowChunks -- there is a new file vg_hashtable.c that implements a
generic-ish hash table (using dodgy C-style inheritance using struct overlays)
which allows skins to continue doing this fairly easily.

Skins can also replace other functions too, eg. Memcheck has its own versions
of strcpy(), memcpy(), etc.

Overall, it's slightly more work now for skins that need to replace malloc(),
but other skins don't have to use Valgrind's malloc(), so they're getting a
"purer" program run, which is good, and most of the remaining rough edges from
the core/skin split have been removed.

-----------------------------------------------------------------------------
details
-----------------------------------------------------------------------------
Moved malloc() et al intercepts from vg_clientfuncs.c into vg_replace_malloc.c.
Skins can link to it if they want to replace malloc() and friends;  it does
some stuff then passes control to SK_(malloc)() et al which the skin must
define.  They can call VG_(cli_malloc)() and VG_(cli_free)() to do the actual
allocation/deallocation.  Redzone size for the client (the CLIENT arena) is
specified by the static variable VG_(vg_malloc_redzone_szB).
vg_replace_malloc.c thus represents a kind of "mantle" level service.

To get automake to build vg_replace_malloc.o, had to resort to a similar trick
as used for the demangler -- ask for a "no install" library (which is never
used) to be built from it.

Note that all malloc, calloc, realloc, builtin_new, builtin_vec_new, memalign
are now aware of --alignment, when running on simd CPU or real CPU.

This means the new_mem_heap, die_mem_heap, copy_mem_heap and ban_mem_heap
events no longer exist, since the core doesn't control malloc() any more, and
skins can watch for these events themselves.

This required moving all the ShadowChunk stuff out of the core, which meant
the sizeof_shadow_block ``need'' could be removed, yay -- it was a horrible
hack.  Now ShadowChunks are done with a generic HashTable type, in
vg_hashtable.c, which skins can "inherit from" (in a dodgy C-only fashion by
using structs with similar layouts).  Also, the free_list stuff was all moved
as a part of this.  Also, VgAllocKind was moved out of core into
Memcheck/Addrcheck and renamed MAC_AllocKind.

Moved these options out of core into vg_replace_malloc.c:
    --trace-malloc
    --sloppy-malloc
    --alignment

The alternative_free ``need'' could go, too, since Memcheck is now in complete
control of free(), yay -- another horribility.

The bad_free and free_mismatch events could go too, since they're now not
detected by core, yay -- yet another horribility.

Moved malloc() et al wrappers for Memcheck out of vg_clientmalloc.c into
mac_malloc_wrappers.c.  Helgrind has its own wrappers now too.

Introduced VG_USERREQ__CLIENT_CALL[123] client requests.  When a skin function
is operating on the simd CPU, this will call a given function and run it on the
real CPU.  The macros VG_NON_SIMD_CALL[123] in valgrind.h present a cleaner
interface to actually use.  Also introduce analogues of these that pass 'tst'
from the scheduler as the first arg to the called function -- needed for
MC_(client_malloc)() et al.

Fiddled with USERREQ_{MALLOC,FREE} etc. in vg_scheduler.c; they call
SK_({malloc,free})() which by default call VG_(cli_malloc)() -- can't call
glibc's malloc() here.  All the other default SK_(calloc)() etc. instantly
panic; there's a lock variable to ensure that the default SK_({malloc,free})()
are only called from the scheduler, which prevents a skin from forgetting to
override SK_({malloc,free})().  Got rid of the unused USERREQ_CALLOC,
USERREQ_BUILTIN_NEW, etc.

Moved special versions of strcpy/strlen, etc, memcpy() and memchr() into
mac_replace_strmem.c -- they are only necessary for memcheck, because the
hyper-optimised normal glibc versions confuse it, and for memcpy() etc. overlap
checking.

Also added dst/src overlap checks to strcpy(), memcpy(), strcat().  They are
reported not as proper errors, but just with single line warnings, as for silly
args to malloc() et al;  this is mainly because they're on the simulated CPU
and proper error handling would be a pain;  hopefully they're rare enough to
not be a problem.  The strcpy check is done after the copy, because it would
require counting the length of the string beforehand.  Also added strncpy() and
strncat(), which have overlap checks too.  Note that addrcheck doesn't do
overlap checking.

Put USERREQ__LOGMESSAGE in vg_skin.h to do the overlap check error messages.

After removing malloc() et al and strcpy() et al out of vg_clientfuncs.c, moved
the remaining three things (sigsuspend, VG_(__libc_freeres_wrapper),
__errno_location) into vg_intercept.c, since it contains things that run on the
simulated CPU too.  Removed vg_clientfuncs.c altogether.

Moved regression test "malloc3" out of corecheck into memcheck, since corecheck
no longer looks for silly (eg. negative) args to malloc().

Removed the m_eip, m_esp, m_ebp fields from the `Error' type.  They were being
set up, and then read immediately only once, only if GDB attachment was done.
So now they're just being held in local variables.  This saves 12 bytes per
Error.

Made replacement calloc() check for --sloppy-malloc;  previously it didn't.

Added "silly" negative size arg check to realloc(), it didn't have one.

Changed VG_(read_selfprocmaps)() so it can parse the file directly, or from a
previously read buffer.  Buffer can be filled with the new
VG_(read_selfprocmaps_contents)().  Using this at start-up to snapshot
/proc/self/maps before the skins do anything, and then parsing it once they
have done their setup stuff.  Skins can now safely call VG_(malloc)() in
SK_({pre,post}_clo_init)() without the mmap'd superblock erroneously being
identified as client memory.

Changed the --help usage message slightly, now divided into four sections: core
normal, skin normal, core debugging, skin debugging.  Changed the interface for
the command_line_options need slightly -- now two functions, VG_(print_usage)()
and VG_(print_debug_usage)(), and they do the printing themselves, instead of
just returning a string -- that's more flexible.

Removed DEBUG_CLIENTMALLOC code, it wasn't being used and was a pain.

Added a regression test testing leak suppressions (nanoleak_supp), and another
testing strcpy/memcpy/etc overlap warnings (overlap).

Also changed Addrcheck to link with the files shared with Memcheck, rather than
#including the .c files directly.

Commoned up a little more shared Addrcheck/Memcheck code, for the usage
message, and initialisation/finalisation.

Added a Bool param to VG_(unique_error)() dictating whether it should allow
GDB to be attached; for leak checks, because we don't want to attach GDB on
leak errors (causes seg faults).  A bit hacky, but it will do.

Had to change lots of the expected outputs from regression files now that
malloc() et al are in vg_replace_malloc.c rather than vg_clientfuncs.c.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1524
2003-04-15 13:03:23 +00:00
Nicholas Nethercote
594c7fc446 This commit moves some skin-specific stuff out of core, and generally
neatens other things up.

Also, it adds the --gen-suppressions option for automatically generating
suppressions for each error.

Note that it changes the core/skin interface:
SK_(dup_extra_and_update)() is replaced by SK_(update_extra)(), and
SK_(get_error_name)() and SK_(print_extra_suppression_info)() are added.


-----------------------------------------------------------------------------
details
-----------------------------------------------------------------------------
Removed ac_common.c -- it just #included another .c file;  moved the
#include into ac_main.c.

Introduced "mac_" prefixes for files shared between Addrcheck and Memcheck,
to make it clearer which code is shared.  Also using a "MAC_" prefix for
functions and variables and types that are shared.  Addrcheck doesn't see
the "MC_" prefix at all.

Factored out almost-identical mc_describe_addr() and describe_addr()
(AddrCheck's version) into MAC_(describe_addr)().

Got rid of the "pp_ExeContext" closure passed to SK_(pp_SkinError)(), it
wasn't really necessary.

Introduced MAC_(pp_shared_SkinError)() for the error printing code shared by
Addrcheck and Memcheck.  Fixed some bogus stuff in Addrcheck error messages
about "uninitialised bytes" (there because of an imperfect conversion from
Memcheck).

Moved the leak checker out of core (vg_memory.c), into mac_leakcheck.c.
 - This meant the hacky way of recording Leak errors, which was different to
   normal errors, could be changed to something better:  introduced a
   function VG_(unique_error)(), which unlike VG_(maybe_record_error)() just
   prints the error (unless suppressed) but doesn't record it.  Used for
   leaks;  a much better solution all round as it allowed me to remove a lot
   of almost-identical code from leak handling (is_suppressible_leak(),
   leaksupp_matches_callers()).

 - As part of this, changed the horrible SK_(dup_extra_and_update) into the
   slightly less horrible SK_(update_extra), which returns the size of the
   `extra' part for the core to duplicate.

 - Also renamed it from VG_(generic_detect_memory_leaks)() to
   MAC_(do_detect_memory_leaks).  In making the code nicer w.r.t suppressions
   and error reporting, I tied it a bit more closely to Memcheck/Addrcheck,
   and got rid of some of the args.  It's not really "generic" any more, but
   then it never really was.  (This could be undone, but there doesn't seem
   to be much point.)

STREQ and STREQN were #defined in several places, and in two different ways.
Made global macros VG_STREQ, VG_CLO_STREQ and VG_CLO_STREQN in vg_skin.h.

Added the --gen-suppressions code.  This required adding the functions
SK_(get_error_name)() and SK_(print_extra_suppression_info)() for skins that
use the error handling need.

Added documentation for --gen-suppressions, and fixed some other minor document
problems.

Various other minor related changes too.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1517
2003-04-08 00:08:52 +00:00
Julian Seward
2d2a15abbf Change a bunch of AM_CFLAGS, AM_CXXFLAGS to CFLAGS, CXXFLAGS.
The AM_ versions totally break compilation on RH6.2.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1447
2003-02-28 23:22:44 +00:00
Dirk Mueller
8f9785b1eb fix make distcheck with newer automake
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1443
2003-02-25 01:48:15 +00:00
Julian Seward
e44ce0f395 Merge patch from JeremyF:
67-dist

Fixes to various places Makefile.am to generate proper distributions.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1350
2002-12-08 22:19:04 +00:00
Nicholas Nethercote
df503439c5 Overview:
- Factored out a lot of commonality between AddrCheck and MemCheck.  Basic
    idea is that common code goes into a single file in MemCheck, and AddrCheck
    peeks in and "borrows" it.

    More or less, only identical code or identical-with-respect-to-subtypes
    code was factored out.

    Identical-with-respect-to-subtypes means that some enum types (SuppKind,
    ErrorKind, etc) were merged because they were identical except that
    MemCheck had some extra constants.  So some of the code borrowed by
    AddrCheck contains cases it never needs.  But that's not so bad, avoiding
    the duplication is IMHO more important.

Removed:
  - ac_include.h, it wasn't necessary

  - All the old debugging stuff from ac_main.c (printing shadow regs, not
    applicable for AddrCheck).

  - MANUAL_DEPS from memcheck/Makefile.am because it wasn't doing anything

  - Some unnecessary crud from addrcheck/Makefile.am

Added:
  - memcheck/mc_common.{c,h}
  - memcheck/mc_constants.h
  - addrcheck/ac_common.c, which simply #includes memcheck/mc_common.c.  This
    hack was required because there is no way (that I could work out) to tell
    Automake that it should build ../memcheck/mc_common.o before building
    AddrCheck.

Changed:
  - a lot of prefixes from SK_ to MC_;  only core/skin interface functions are
    prefixed with SK_ now.  This makes it clear which functions are from the
    core/skin interface, and for AddrCheck it's clear which functions are
    shared with/borrowed from MemCheck.  Changed some related prefixes for
    consistency.

  - Also factored out some duplication within AddrCheck -- some accessibility
    checking was needlessly split up into separate read and write checks that
    did the same thing.

Unchanged:
  - I considered moving the leak detector out of core into mc_common.c, but
    didn't, because it constantly accesses ShadowChunk fields and converting to
    get/set methods would have been a total pain.

  - Left old debugging stuff in for MemCheck, although I seriously doubt it
    would still work.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1325
2002-11-18 11:04:50 +00:00
Nicholas Nethercote
488ff9a93a Changed Makefiles so that the following files are installed:
valgrind.h --> $prefix/include/valgrind/valgrind.h
  memcheck.h --> $prefix/include/valgrind/memcheck.h

This mirrors the lib/ structure.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1289
2002-11-12 10:53:31 +00:00
Julian Seward
e959615698 Fix build problems on SuSE 8.1 -- -I.. not included in compile cmds
for .S files.  Possibly due to the presence of the following on this dist:

  autoconf (GNU Autoconf) 2.53
  automake (GNU automake) 1.6.3


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1148
2002-10-01 00:18:22 +00:00
Nicholas Nethercote
9a0718281f Fixups to get "make dist" to work -- mostly involving regression test files.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1099
2002-09-23 16:09:39 +00:00
Nicholas Nethercote
f1689b96db Changed lots of files for the new core/ + skin/ directory structure:
- changed lots of Makefile.am files
   - changed configure.in
   - changed lots of #include lines for changed file names
   - changed lots of file headers n footers for changed file names
   - changed vg_regtest to handle new directory structure -- recursively
     traverses subdirectories for .vgtest test files
   - changed lots of paths in memcheck/ regression test expected outputs


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1090
2002-09-23 11:21:57 +00:00
Nicholas Nethercote
afebe61b37 Files updated, added and removed in order to turn the ERASER branch into HEAD
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1086
2002-09-23 09:36:25 +00:00