This patch makes sure that the process running under valgrind only sees
the AES, PMULL, SHA1, SHA2, CRC32, FP, and ASIMD features in auxv AT_HWCAPS.
https://bugs.kde.org/show_bug.cgi?id=381556
Adding MIPS N32 ABI support.
BZ issue - #345763.
Contributed and maintained by mulitple people over the years:
Crestez Dan Leonard, Maran Pakkirisamy, Dimitrije Nikolic,
Aleksandar Rikalo, Tamara Vlahovic.
The modified test none/tests/sem crashes with a SEGV when valgrind is compiled
with lto on various amd64 platforms (debian/gcc 6.3, RHEL7/gcc 6.4,
Ubuntu/gcc 7.2)
The problem is that the vki_semid_ds buf is not what is expected by the kernel:
the kernel expects a bigger structure vki_semid64_ds (at least on
these platforms).
Getting the sem_nsems seems to work by chance, as sem_nsems is at
the same offset in both vki_semid_ds and vki_semid64_ds.
However, e.g. the ctime was not set properly after syscall return,
and 2 words after sem_nsems were set to 0 by the kernel, causing
the SEGV, as a spilled register became 0.
Fix consists in using the 64 bit version for __NR_semctl.
Tested on debian/amd64 and s390x.
Shingled magnetic recording drives support a command set called ZBC
(Zoned Block Commands). Two new ioctls have been added to the Linux
kernel to support such drives, namely VKI_BLKREPORTZONE and
VKI_BLKRESETZONE. Add support to Valgrind for these ioctls.
Set correct values from Linux kernel.
See ./arch/mips/include/uapi/asm/sockios.h
This issue is covered by newly introduced memcheck test mips32/bad_sioc.
Reduces the number of compiler warnings on MIPS platforms.
Partial fix for BZ#370028.
Patch by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com>
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16256
Fix 373192 Calling posix_spawn in glibc 2.24 completely broken
Functionally, this patch just does the following 2 changes to the
fork clone handling:
* It does not mask anymore CLONE_VFORK :
The only effect of this flag is to suspend the parent, waiting for
the child to either exit or execve.
If some applications depends on this synchronisation, better keep it,
as it will not harm to suspend the parent valgrind waiting for the
child valgrind to exit or execve.
* In case the guest calls the clone syscall providing a non zero client stack,
set the child guest SP after the syscall, before executing guest instructions.
Not setting the guest stack ptr was the source of the problem reported
in the bugs.
This also adds a test case none/tests/linux/clonev.
Before this patch, test gives a SEGV, which is fixed by the patch.
The patch is however a lot bigger : this fix was touching some (mostly
identical/duplicated) code in all the linux platforms.
So, the clone/fork code has been factorised as much as possible.
This removes about 1700 lines of code.
This has been tested on:
* amd64
* x86
* ppc64 be and le
* ppc32
* arm64
This has been compiled on but *not really tested* on:
* mips64 (not too clear how to properly build and run valgrind on gcc22)
It has *not* been compiled and *not* tested on:
* arm
* mips32
* tilegx
* darwin (normally, no impact)
* solaris (normally, no impact)
The changes are relatively mechanical, so it is not impossible that
it will compile and work out of the box on these platforms.
Otherwise, questions welcome.
A few points of interest:
* Some platforms did have a typedef void vki_modify_ldt_t,
and some platforms had no definition for this type at all.
To make it easier to factorise, for such platforms, the following has
been used:
typedef char vki_modify_ldt_t;
When the sizeof vki_modify_ldt_t is > 1, then the arg syscall is checked.
This is somewhat a hack, but was simplifying the factorisation.
* for mips32/mips64 and tilegx, there is a strange unconditional assignment
of 0 to a register (guest_r2 on mips, guest_r0 on tilegx).
Unclear what this is, in particular because this is assigned whatever
the result of the syscall (success or not).
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@16186
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
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
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
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
