Commit Graph

94 Commits

Author SHA1 Message Date
Nicholas Nethercote
f68cbf9ea9 wibbles
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1104
2002-09-23 16:56:39 +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
6274c36baf Removed non-Cachegrind stuff from docs.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1094
2002-09-23 11:50:39 +00:00
Nicholas Nethercote
7fa8be4779 Added cg_annotate.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1093
2002-09-23 11:37:05 +00:00
Nicholas Nethercote
a766333b67 Added .cvsignore file.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@1092
2002-09-23 11:36:39 +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
Nicholas Nethercote
b437ac4ccf Undid the removal of INCEIPs during Cachegrind instrumentation. Although it
helped performance, it could cause problems.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@588
2002-08-16 10:41:53 +00:00
Nicholas Nethercote
54f153c1da Cache simulation requires strict INCEIP updating so that the boundaries between
individual x86 instructions can be found when instrumenting UCode.  However,
EIP is not needed during execution, because the x86 instr addresses are copied
into the cost-centres.  So now they INCEIPs are removed during the
instrumentation step once their task is done.

This reduces running times by about 3--7%, and translation sizes by about 9%
(code expansion reduced from about 11x to about 10x).


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@550
2002-08-01 08:09:51 +00:00
Nicholas Nethercote
252fb3fba9 This commit introduces two new UInstructions: CCALL_1_0, CCALL_2_0.
These are the first of a generic family for calling C functions.  CCALL_M_N
calls a function with M word-sized arguments and N word-sized return values
(N == 0 or 1, of course).  All stack management is done automatically --
register saving, argument pushing, register restoring.  Rough timings show it's
marginally faster (~3%), probably because the instrumentation phase is slightly
simpler and translations are slighly more compact.

It was introduced because the way Cachegrind was calling its helper functions
was not really legitimate -- it involved pushing RealRegs at a point where
RealRegs shouldn't have been used.  This flukily worked for Cachegrind, but
caused obscure seg faults when I tried using the same technique for the DIDUCE
stuff.  Hence this more general approach.

CCALL_M_N where M+N <= 3 are easy.  More args might be done by abusing spare
fields in the UInstr struct, if really necessary.  But it's not, yet.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@546
2002-07-28 09:53:34 +00:00
Julian Seward
ecd4ee7a79 Wibbles for 1.0.0.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@540
2002-07-26 11:34:39 +00:00
Julian Seward
5b87b4d8a7 Document probs with gcc-3.1 false positives.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@512
2002-07-16 01:49:22 +00:00
Julian Seward
ee99a560ad Mention kernel probs with R H "Limbo" public beta (hacked 2.4.18).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@504
2002-07-14 10:45:21 +00:00
Julian Seward
fb00a3330d Document some limitations.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@503
2002-07-13 14:09:35 +00:00
Julian Seward
c20e620efa get_caches(): ensure caches are initialised on targets where
get_caches_from_CPUID fails.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@501
2002-07-13 13:31:20 +00:00
Julian Seward
7b7227adc8 Include valgrind.spec and valgrind.spec.in in tarballs.
Also add a line to the description in the .spec.in.
(Shlomi Fish)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@494
2002-07-13 12:37:28 +00:00
Julian Seward
2709e5a7f9 Add helpful info for package builders.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@482
2002-07-01 08:46:27 +00:00
Julian Seward
6764cec920 Final documentation updates for 1.0.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@481
2002-07-01 08:30:05 +00:00
Julian Seward
e8dd1efe84 Implement --weird-hacks=truncate-writes to limit the size of write syscalls
to 4096, to possibly avoid deadlocks under very rare circumstances.
Is fully documented and commented.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@479
2002-06-30 12:44:54 +00:00
Nicholas Nethercote
e95cef5f3c Removed line about Cachegrind being experimental.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@472
2002-06-27 15:45:09 +00:00
Julian Seward
130d8c068d Disable debug printing on BB discard.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@427
2002-06-14 11:08:07 +00:00
Julian Seward
f18008337f Patrick Ohly's --alignment= patch, to increase alignment of malloc'd
blocks if needed.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@422
2002-06-14 10:17:05 +00:00
Julian Seward
c797c7e5f9 First round of manual update for 1.0.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@417
2002-06-13 20:37:25 +00:00
Julian Seward
37ad57a2b5 Namespace police woz here
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@408
2002-06-13 11:11:05 +00:00
Julian Seward
cf4a890c45 Inconsequential cleanups to recent cachesim hacking.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@407
2002-06-13 10:25:56 +00:00
Nicholas Nethercote
9dd7bf5c81 Whoops, forgot to add this last time.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@406
2002-06-12 08:49:04 +00:00
Nicholas Nethercote
7c06858a4f vg_annotate.in:
- fixed a bug that was breaking the --threshold option.

vg_cachesim.c:
    - fixed a bug that meant instructions that didn't have a line number in the
      debug info were being written in cachegrind.out with whatever was the
      last known line number.  Now using 0.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@403
2002-06-10 15:31:16 +00:00
Nicholas Nethercote
f598db43e4 A few minor improvements.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@402
2002-06-10 10:24:05 +00:00
Nicholas Nethercote
9e8a864df1 Updated Cachegrind section for the CPUID-addition/vg_cachegen-removal.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@401
2002-06-08 14:06:37 +00:00
Nicholas Nethercote
b859182c44 Removed the need for the user to generate a cache simulation -- now do
automatic cache configuration detection using the CPUID instruction.
This can be overridden from the command-line if necessary.

vg_include.h:
    - added the cache_t type and UNDEFINED_CACHE macro

    - added command line args (of type cache_t) allowing manual override of
      I1/D1/L2 configuration

    - added log2(), which is generally useful

vg_main.c, valgrind.in, cachegrind.in:
    - added handling of the new --{I1,D1,L2}=<size>,<assoc>,<line_size>
      options

vg_cachesim.c:
    - lots of stuff for auto-detecting cache configuration with CPUID.
      Only handles Intel and AMD chips at the moment, and possibly not all of
      them.  Falls back onto defaults if anything goes wrong, and the configs
      can be manually overridden from the command line anyway.

    - now not printing cache summary stats if verbosity == 0.  Still writing
      cachegrind.out, though.

vg_cachesim_gen.c:
    - new file containing stuff shared by the I1/D1/L2 simulations

vg_cachesim_{I1,D1,L2}:
    - removed most of it;  each now just calls a macro defined in
      vg_cachesim_gen.c

vg_cachegen:
    - has been cvs removed as it is no longer needed.

Makefile.am:
    - added vg_cachesim_gen.c

    - removed vg_cachegen

configure.in:
    - removed vg_cachegen


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@400
2002-06-08 13:36:03 +00:00
Nicholas Nethercote
77dca1afe5 Cache simulator now handles basic block discards correctly. When
VG_(cachesim_discard_notify) is called, the cost centre array for the basic
block is removed from the table, and its counts are aggregated into a single
"discard" cost centre, and the cost centre array is free'd.

The aggregate discard cost centre is given the filename:function_name
"(discarded):(discarded)".  Mentioned this in the manual.

Only tested with tests/discard.c.  Seems to work well for that case though :)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@385
2002-06-05 14:41:10 +00:00
Nicholas Nethercote
6cae67ce51 Added compile-time option to print instruction addresses for each line in
cachegrind.out.  Increases file size by a fair bit, but useful for debugging
stabs errors <sigh>


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@384
2002-06-05 09:39:31 +00:00
Nicholas Nethercote
703acc24b7 Tiny documentation wibbles
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@383
2002-06-05 09:21:51 +00:00
Julian Seward
a487ef1ce7 A new kind of error: PThread errors. Used to report detected misuse in
the pthread_* API.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@379
2002-06-04 22:54:20 +00:00
Julian Seward
9b734f2384 Markup bug.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@352
2002-06-01 23:56:38 +00:00
Julian Seward
1ece8474f2 Update author attributions.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@350
2002-06-01 23:43:49 +00:00
Julian Seward
162b23f120 Update for sigaltstack
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@312
2002-05-22 23:56:33 +00:00
Julian Seward
53c56fd4d1 Implement semaphore functions.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@295
2002-05-19 00:13:34 +00:00
Julian Seward
96b04d4f30 Fix fork/exec stuff so it works again. We have to mangle LD_LIBRARY_PATH
as well as LD_PRELOAD, so as to make our libpthread.so go out of scope
when a child which we don't want to trace, is exec'd.  Otherwise the
child can wind up being connected to our libpthread.so but not to
valgrind.so, which is an unworkable combination; you have to be connected
to both or neither.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@291
2002-05-18 13:14:17 +00:00
Julian Seward
e45ef9f6cc Add clarification of the purpose of the malloc/free mismatch checks
(Pascal Massimino)


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@289
2002-05-18 11:09:19 +00:00
Julian Seward
6610ca19b3 Remove existing non-working support for self-modifying code, and instead
add a simple compromise, in which the client can notify valgrind
that certain code address ranges are invalid and should be retranslated.
This is done using the VALGRIND_DISCARD_TRANSLATIONS macro in valgrind.h.

At the same time take the opportunity to close the potentially fatal
loophole that translations for executable segments were not being
discarded when those segments were munmapped.  They are now.

Documentation updated.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@274
2002-05-16 11:06:21 +00:00
Nicholas Nethercote
ab8de9f4f7 Fix incredibly stupid bug.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@270
2002-05-15 14:30:55 +00:00
Nicholas Nethercote
8cbe9082c5 Expanded --sort option to take threshold args with the event names. Lets you
do things like "show functions covering 99% of all D2mr events *and* 99% of all
D2mw events" - before you could only choose the threshold for one.

Useful for me, but probably no-one else.  Still mentioned it in the docs,
though.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@269
2002-05-13 20:27:54 +00:00
Frédéric Gobry
460d2313d2 Use $(srcdir) to specify the location of the linker script
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@268
2002-05-13 07:50:45 +00:00
Julian Seward
d6920d2b5c Fix spelling mistake: wierd*hacks --> weird*hacks
Also add a testcase.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@265
2002-05-12 10:52:16 +00:00
Julian Seward
2943666eb5 In order to catch timeout events on fds which are readable and which
have been ioctl(TCSETA)'d with a VTIMEout, we appear to need to ask if
the fd is writable, for some reason.  Ask me not why.  Since this is
strange and potentially troublesome we only do it if the user asks
specially, by specifying --wierd-hacks=ioctl-VTIME.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@264
2002-05-12 03:00:17 +00:00
Julian Seward
59ff40a36c Insert hacks, only partially successful, to make 'make distcheck' work
with the new vg_libpthread.vs linker script.  Problem is that builds
where builddir != srcdir don't work now.  Don't know how to fix.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@253
2002-05-10 03:03:57 +00:00
Julian Seward
aa02efa1a0 More symbol versioning stuff
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@250
2002-05-10 01:52:58 +00:00
Julian Seward
ee775d8b61 Add a version script so as to create the right versioned symbols for
libpthread.so.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@249
2002-05-10 01:42:33 +00:00
Nicholas Nethercote
74bb5ef434 Minor corrections about cache profiling cost centres.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@243
2002-05-09 15:43:33 +00:00