e.g. using the beloz
for f in 1 2 3 4 5 6 7 8 9; do echo $f; time ./vg-in-place -q ./memcheck/tests/leak-autofreepool 2 $(expr $f \* 100000); done
This shows that freeing a mempool with significant nr of elements
has a bad effect on performance
Note that no effort has been spent to avoid leaks in this
optional perf test. This is just to analyse the time taken to
free the pool.
The above loop shows that a medium size pool (e.g. < 1000000 elts)
can already take significant time, probably due to the quadratic
algorithm to clear the pool.
Note that the increase can vary a lot, probably depending on the
way the blocks are spread in the hash table: when lucky, the quadratic
algorithm probably somewhat becomes more linear if the elements
are 'properly' ordered in the hash table by deletion order.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15986
- Auto-frees all chunks assuming that destroying a pool destroys all
objects in the pool
- Uses itself to allocate other memory blocks
Unit tests included.
Fixes BZ#367995
Patch by: Ruurd Beerstra <ruurd.beerstra@infor.com>
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15984
The test suite support for the Power PC ISA 3.0 instructions added in
VEX commit 3244 is added in this commit.
bugzilla 364948
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15938
On Solaris, '%p' outputs just a hexadecimal number
without '0x' prefix. This is perfectly valid but not
understood by VG_(strtok_get_address_and_size)().
Therefore use universal PRIxPTR.
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15918
Valgrind side : reproducer for the false positive memcheck
+ announce the fix (VEX side in next commit)
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15905
The test suite support for the Power PC ISA 3.0 instructions added in
VEX commit 3222 is added in this commit.
Note, this is part 4 of 5. The NEWS file will be updated when the ISA 3.0
support is complete.
valgrind bugzilla 363858
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15896
The msg telling brk cannot be extended confuses some users
so improve the documentation and have the msg referencing the doc.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15880
The original code was using the bcdadd / bcdsub instruction on the operand
shadow bits to calculate the shadow bits for the result. This introduced
non-zero bits shadow bits in the result. The shadow bits for these
instructions should be set to all valid or all invalid. If one of the
argument shadow bits was one, then all of the shadow bits of the result should
be one. Otherwise the result shadow bits should be zero.
This patch fixes the above bug in memcheck/mc_translate.c
Fixing the above bug broke the v-bit test. The issue is the v-bit tester
assumes the shadow bits for the operands of a given Iop can be set to one
for testing purposes. The implementation of the bcdadd and bcdsub was passing
a constant value for the variable ps. The ps value is an argument to the
instruction that specifies how to set the sign code of the result. The
implementation of the instructions was changed to issue the instruction with
ps=0. Then the result of the instruction is updated in the VEX code if ps=1.
This changed also results in cleaning up the vbit test code.
This patch also fixes the issues with the v-bit test program.
Valgrind commit 3218
Bugzilla 360035
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15871
- zlib ELF gABI format with SHF_COMPRESSED flag (gcc option -gz=zlib)
- zlib GNU format with .zdebug sections (gcc option -gz=zlib-gnu)
Patch by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com>
Fixes BZ#303877
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15868
of an incompatible type to signal handler.
Untyped function pointer sa_handler() is no longer available
so we leverage sa_sigaction(int, siginfo_t *, void *) instead.
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15858
This is a fix for memchech/mc_machine.c found by the nightly regression
test. The fix is for valgrind commit 15837
valgrind bugzilla 359767
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15841
from libstdc++ when available, similar to existing __libc_freeres().
New option --run-cxx-freeres=<yes|no> can be used to change whether
this cleanup function is called or not.
Note that __gnu_cxx::__freeres() is currently available
only in gcc 6. It is not yet decided what to do about
libstdc++ from gcc 5.
Tracked under https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69945
for libstdc++.
Fixes BZ#345307 (partially).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15840
compile. This is clearly pointless but is done for a cleanliness
point of view. No functional change.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15836
The new memcheck/tests/arm64-linux/scalar test is based on the
memcheck/tests/x86-linux/scalar test and contains all syscalls
that are also available on arm64. To make comparison of exp results
easier the order of the tested syscalls is the same as on x86.
This enables a couple extra arm64 syscalls. Part of the fix for
bug #359503 - Add missing syscalls for aarch64 (arm64).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15825
r15815 "Allow 8k and 32k page sizes" added an extra line in memalign_test.c.
This changed the line numbers in the output compared to the .exp file.
Just put everything on one (long) line to match expectations again.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15818
Set exact value of VKI_PAGE_SIZE by calling sysconf(_SC_PAGESIZE).
This should set a correct value to this variable on MIPS systems with
different page sizes.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15817
Allow 8k and 32k page sizes in memalign and other memory related tests.
This fixes crashes in the tests on systems with 8k or 32k pagesize.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15815
from non-static inline functions reported by gcc 5.3:
warning: "locf" is static but declared in inline function "fun_f" which is not static
While at it, silence also compiler warning about uninitialized
variable "result" when calling fun_a().
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15797
for auditon(2) subcode of the auditsys() syscall
were removed in Solaris 12.
However they stay for Solaris 11 and illumos.
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15791
At many places, we have:
VG_(fun(a,b,c))
instead of
VG_(fun)(a,b,c)
So, fix these cases, found using:
grep -n -i -e 'VG_([a-z][a-z0-9_]*[^a-z0-9_)]' *.c */*.c */*/*.c
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15776
C++ allocator from Solaris Studio allocates for std::string
57 bytes instead of former 40 bytes on 64-bit, and 45 bytes instead of 28 on 32-bit.
Confirmed with truss and --trace-alloc=yes.
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15775
ccache sometimes causes the source file absolute name to be another
full path (not $PWD).
This means that the badfree3 and varinfo5 tests can fail due to
the full path after not being match on $PWD.
So, rather ask full path after a part of the path that is stable
even when ccache decides to reuse a already compiled object from
another directory.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15771
glibc 2.20 deprecated _BSD_SOURCE and _SVID_SOURCE and now requires
_DEFAULT_SOURCE to be defined instead. Add _DEFAULT_SOURCE define to
prevent warnings like:
In file included from /usr/include/stdio.h:27:0,
from stack_switch.c:5:
/usr/include/features.h:148:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
# warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
^
See https://sourceware.org/glibc/wiki/Release/2.20#Packaging_Changes
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15768
