with no size/direction hints. (DVD_READ_STRUCT)
Patch from Austin English (austinenglish@gmail.com).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16153
with no size/direction hints. (CDROMSTOP).
Patch from Austin English (austinenglish@gmail.com).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16152
Note: the outer now unconditionally report the inner guest stacktrace.
If that would be a problem, we might add a sim-hint no-inner-guest-stacktrace
to optionally disable such outer behaviour.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16139
This commit is the bulk of the new code.
There is however no functional impact yet : the new modules are not used by anybody.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16123
This allows to search more efficiently a string in an xarray of string.
(support work for xtree)
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16122
Coredumps created for MIPS are not valid today. Update the list of
registers that have to be saved, and use the structure defined in
kernel.
Patch by Aleksandar Rikalo.
It fixes BZ#351692.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16080
ignoring accesses on the stack below SP. Serves as a more modern
replacement for --workaround-gcc296-bugs, which is now deprecated.
Fixes#360571.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16073
* rename macro VALGRIND_CREATE_META_MEMPOOL
to VALGRIND_CREATE_MEMPOOL_EXT
* abort execution if a pool is marked as auto_free but is not a meta pool
+ removed test leak-autofreepool-3.vgtest, which now aborts.
* reword/clarify valgrind.h explanations for meta pool
* similarly reword/clarify the manual
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16042
Based on a patch from Ruurd Beerstra
but reworked VG_(HT_remove_at_Iter) so that
the function is implemented without touching the rest of m_hashtable.c
to ensure no performance impact on other hash table usages.
Testing with
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|&grep user
With the patch :
user 0m0.524s
user 0m0.660s
user 0m0.784s
user 0m0.916s
user 0m1.064s
user 0m1.192s
user 0m1.316s
user 0m1.496s
user 0m1.632s
Without the patch, the same gives:
user 0m4.464s
user 0m16.776s
user 0m24.472s
user 1m5.544s
user 1m21.168s
user 1m40.500s
user 1m54.884s
user 4m58.308s
user 5m34.060s
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16041
Add MIPS specific wrapper for prctl(GET/SET_FP_MODE) syscalls to
support FP32/FP64 mode switch.
Patch by Aleksandar Rikalo.
Related VEX change r3253.
Related bug - BZ #366079.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16003
At startup valgrind fetches the current working directory and stashes
it away to be used later (in debug messages, read config files or create
log files). But if the current working directory didn't exist (or there
was some other error getting its path) then valgrind would go in an
endless loop. This was caused by assuming that any error meant a larger
buffer needed to be created to store the cwd path (ERANGE). However
there could be other reasons calling getcwd failed.
Fix this by only looping and resizing the buffer when the error is
ERANGE. Any other error just means we cannot fetch and store the current
working directory. Fix all callers to check get_startup_wd() returns
NULL. Only abort startup if a relative path needs to be used for
user supplied relative log files. Debug messages will just show
"<NO CWD>". And skip reading any config files from the startup_wd
if it doesn't exist.
Also add a new testcase that tests executing valgrind in a deep,
inaccessible and/or non-existing directory (none/tests/nocwd.vgtest).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15989
- 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
SUNWDTRACE program header. Newer Solaris no longer utilizes
this program header as a scratchspace for DTrace fasttrap
provider, before libc is loaded.
For the time being, it serves as a space for initial thread
pointer.
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15936
With this patch, MIPS32 Valgrind compiled with -mfpxx can handle all types
(regarding FP_ABI flag) of MIPS32 ELFs.
- Functions arch_elf_pt_proc() and arch_check_elf() are added to elf reader
according to linux/fs/binfmt_elf.c from Linux 4.1;
- Processing .MIPS.abiflags section and initializing appropriate FPU mode
for MIPS32 are added;
- Emulation of prctl(GET/SET_FP_MODE) sys-calls are implemented for MIPS32.
Patch by Aleksandar Rikalo <Aleksandar.Rikalo@imgtec.com>
Related VEX change: r3243.
This implements BZ#366079.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15934
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
We were using some wrong syscall numbers in vki-scnums-arm64-linux.h
arm64 doesn't implement a couple of old deprecated system calls like
rename, dup2, getpgrp and fork. Adjust m_libcfile.c rename and dup2
functions to use renameat (also on tilegx) and dup3 (with fcntl fallback
for bad oldfd). And in m_libcproc.c implement getpgrp as getpgid(0).
Also don't compile the fork syswrap on arm64 (it only supports clone).
In practice this only affected callgrind which was unable to rename
dump files in some cases and ELF core dumps might have contained some
bogus prstatus fields.
Related to bug #359503 - Add missing syscalls for aarch64 (arm64)
Reported by Marcin Juszkiewicz who also posted a nice overview
of system calls on different linux architectures:
https://marcin.juszkiewicz.com.pl/2016/03/05/from-a-diary-of-aarch64-porter-system-calls/
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15824
Instead of passing an option to the configure script, use runtime detection
of the page size. Remove the "--with-pagesize" parameter from the configure
script.
Also accept 8k and 32k as valid page sizes.
Patch by Maran Pakkirisamy
It fixes BZ#342356.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15813
on Solaris. With gcc 5.3, PIEs can be produced on Solaris 12.
gdb on Solaris requires AT_ENTRY to correctly work with those.
See very long comment before function svr4_exec_displacement().
n-i-bz
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15810
The linux 4.3 s390 kernel has separate system calls that were originally
hidden behind the socketcall multiplexer system call. Newer glibc versions
will use these direct system calls instead of socketcall when available.
Causing several regtest failures.
This fix simply wires up the split out system calls directly to the
existing syswrap handlers for s390.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15802
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
Add "memory" to the clobber arguments of VALGRIND_DO_CLIENT_REQUEST_EXPR.
This fixes memcheck/tests/vbit-test/vbit-test.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15740
The default implementation provided by __builtin functions
does very weird things.
Uncovered by Philippe's commit r15716.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15734
