Here are a few late bugfixes for qemu-5.0 in the ppc target code.
Unless some really nasty last minute bug shows up, I expect this to be
the last ppc pull request for qemu-5.0.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.0-20200417' into staging
ppc patch queue for 2020-04-17
Here are a few late bugfixes for qemu-5.0 in the ppc target code.
Unless some really nasty last minute bug shows up, I expect this to be
the last ppc pull request for qemu-5.0.
# gpg: Signature made Fri 17 Apr 2020 06:02:13 BST
# gpg: using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-5.0-20200417:
target/ppc: Fix mtmsr(d) L=1 variant that loses interrupts
target/ppc: Fix wrong interpretation of the disposition flag.
linux-user/ppc: Fix padding in mcontext_t for ppc64
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The padding that was added in 95cda4c44e was added to a union,
and so it had no effect. This fixes misalignment errors detected
by clang sanitizers for ppc64 and ppc64le.
In addition, only ppc64 allocates space for VSX registers, so do
not save them for ppc32. The kernel only has references to
CONFIG_SPE in signal_32.c, so do not attempt to save them for ppc64.
Fixes: 95cda4c44e
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200407032105.26711-1-richard.henderson@linaro.org>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Noticed by Barnabás Virágh as a python-3.7 failue on qemu-alpha.
The bug shows up on alpha as it's one of the targets where
EPOLL_CLOEXEC differs from other targets:
sysdeps/unix/sysv/linux/alpha/bits/epoll.h: EPOLL_CLOEXEC = 01000000
sysdeps/unix/sysv/linux/bits/epoll.h: EPOLL_CLOEXEC = 02000000
Bug: https://bugs.gentoo.org/717548
Reported-by: Barnabás Virágh
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
CC: Riku Voipio <riku.voipio@iki.fi>
CC: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200415220508.5044-1-slyfox@gentoo.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
In the original bug report long files names in Guix caused
/proc/self/stat be truncated without the trailing ") " as specified in
proc manpage which says:
(2) comm %s
The filename of the executable, in parentheses. This
is visible whether or not the executable is swapped
out.
In the kernel this is currently done by do_task_stat calling
proc_task_name() which uses a structure limited by TASK_COMM_LEN (16).
Additionally it should only be reporting the executable name rather
than the full path. Fix both these failings while cleaning up the code
to use GString to build up the reported values. As the whole function
is cleaned up also adjust the white space to the current coding style.
Message-ID: <fb4c55fa-d539-67ee-c6c9-de8fb63c8488@inria.fr>
Reported-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200414200631.12799-10-alex.bennee@linaro.org>
The target_flat.h file is a QEMU header, so we should include it using
quotes, not angle brackets.
Coverity otherwise is unable to find the header:
"../linux-user/flatload.c", line 40: error #1712: cannot open source file
"target_flat.h"
#include <target_flat.h>
^
because the relevant directory is only on the -iquote path, not the -I path.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200319193323.2038-5-peter.maydell@linaro.org
Don't use magic spaces, calculate the justification for the file
field like the kernel does with seq_pad.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200403191150.863-10-alex.bennee@linaro.org>
Unfortunately reading /proc/self/maps is still considered the gold
standard for a process finding out about it's own memory layout. As we
will want this data in other contexts soon factor out the code to read
and parse the data. Rather than just blindly copying the existing
sscanf based code we use a more modern glib version of the parsing
code to make a more general purpose map structure.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200403191150.863-9-alex.bennee@linaro.org>
Searching for memory space can cause problems so lets extend the
CPU_LOG_PAGE output so you can watch init_guest_space fail to
allocate memory. A more involved fix is actually required to make this
function play nicely with the large guard pages the sanitiser likes to
use.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200403191150.863-5-alex.bennee@linaro.org>
Checking TARGET_ABI_BITS is sketchy - we should check for the presence
of the define to be sure. Also clean up the white space while we are
there.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200403191150.863-3-alex.bennee@linaro.org>
Add support for host and target futex_time64. If futex_time64 exists on
the host we try that first before falling back to the standard futex
syscall.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <d9390e368a9a1fd32d52aa771815e6e3d40cb1d4.1584571250.git.alistair.francis@wdc.com>
[lv: define sys_futex() if __NR_futex is defined (fix bug on 32bit host),
remove duplicate get_errno()]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The first argument, timeval, is allowed to be NULL.
The second argument, timezone, was missing. While its use is
deprecated, it is still present in the syscall.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-6-richard.henderson@linaro.org>
[lv: add "#if defined(TARGET_NR_gettimeofday)"]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The page isn't (necessarily) present in the host /proc/self/maps,
and even if it might be it isn't present in page_flags, and even
if it was it might not have the same set of page permissions.
The easiest thing to do, particularly when it comes to the
"[vsyscall]" note at the end of line, is to special case it.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-5-richard.henderson@linaro.org>
[lv: remove trailing space]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Notice the magic page during translate, much like we already
do for the arm32 commpage. At runtime, raise an exception to
return cpu_loop for emulation.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-4-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This is a bit tidier than open-coding the 5 lines necessary
to initialize the target_siginfo_t. In addition, this zeros
the remaining bytes of the target_siginfo_t, rather than
passing in garbage.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200213032223.14643-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Previously, the signal handler would be byte swapped if the target and
host CPU used different endianness. This would cause a SIGSEGV when
attempting to translate the opcode pointed to by the swapped address.
Thread 1 "qemu-ppc64" received signal SIGSEGV, Segmentation fault.
0x00000000600a9257 in ldl_he_p (ptr=0x4c2c061000000000) at qemu/include/qemu/bswap.h:351
351 __builtin_memcpy(&r, ptr, sizeof(r));
#0 0x00000000600a9257 in ldl_he_p (ptr=0x4c2c061000000000) at qemu/include/qemu/bswap.h:351
#1 0x00000000600a92fe in ldl_be_p (ptr=0x4c2c061000000000) at qemu/include/qemu/bswap.h:449
#2 0x00000000600c0790 in translator_ldl_swap at qemu/include/exec/translator.h:201
#3 0x000000006011c1ab in ppc_tr_translate_insn at qemu/target/ppc/translate.c:7856
#4 0x000000006005ae70 in translator_loop at qemu/accel/tcg/translator.c:102
The signal handler will be byte swapped as a result of the __get_user()
call in sigaction() if it is necessary, no additional swap is required.
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200319133244.8818-1-vfazio@xes-inc.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Use helper script scripts/gensyscalls.sh to generate the file.
Add TARGET_NR_or1k_atomic
Remove useless comments and blank lines.
Define diretly the __NR_XXX64 syscalls rather than using the
intermediate __NR3264 definition.
Remove wrong cut'n'paste (like "#ifdef __ARCH_WANT_SYNC_FILE_RANGE2")
Add new syscalls from 286 (preadv) to 434 (pidfd_open).
Remove obsolete syscalls 1204 (open) to 1079 (fork).
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200316085620.309769-5-laurent@vivier.eu>
Use helper script scripts/gensyscalls.sh to generate the file.
This adds TARGET_NR_llseek that was missing and remove syscalls 1024
to 1079.
Add new syscalls from 288 (pkey_mprotect) to 434 (pidfd_open)
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200316085620.309769-4-laurent@vivier.eu>
Add a script to update the file from strace github and run it
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-22-laurent@vivier.eu>
[lv: added file in MAINTAINERS]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Run scripts/update-syscalltbl.sh with linux commit 0bf999f9c5e7
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-20-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Copy syscall_n32.tbl, syscall_n64.tbl and syscallhdr.sh from
linux/arch/parisc/kernel/syscalls v5.5
Update syscallhdr.sh to generate QEMU syscall_nr.h
Move the offsets (6000 for n32 and 5000 for n64) from the file to
the Makefile.objs to be passed to syscallhdr.sh
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-18-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Copy syscall.tbl and syscallhdr.sh from linux/arch/mips/kernel/syscalls/syscall_o32.tbl v5.5
Update syscallhdr.sh to generate QEMU syscall_nr.h
Move the offset (4000) from the file to the Makefile.objs to be passed
to syscallhdr.sh
Rename on the fly fadvise64 to fadvise64_64.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-17-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Define do_arch_prctl() for i386 and x86_64, but return -TARGET_ENOSYS
for i386.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-14-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We don't support other 32bit architecture.
Update file to comply with coding style (TAB).
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-11-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Copy syscall.tbl and syscallhdr.sh from linux/arch/ppc/kernel/syscalls v5.5
Update syscallhdr.sh to generate QEMU syscall_nr.h
and to not generate the entry if entry point is sys_ni_syscall.
Fix ppc/signal.c to define do_sigreturn() for TARGET_ABI32.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200310103403.3284090-10-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Copy syscall.tbl and syscallhdr.sh from linux/arch/arm/tools/syscalls v5.5
Update syscallhdr.sh to generate QEMU syscall_nr.h
Update syscall.c to manage TARGET_NR_arm_sync_file_range as it has
replaced TARGET_NR_sync_file_range2
Move existing stuff from linux-user/Makefile.objs to
linux-user/arm/Makefile.objs
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200310103403.3284090-9-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Add support for the clock_gettime64/clock_settime64 syscalls.
If your host is 64-bit or is 32-bit with the *_time64 syscall then the
timespec will correctly be a 64-bit time_t. Otherwise the host will
return a 32-bit time_t which will be rounded to 64-bits. This will be
incorrect after y2038.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <4a7fd05532400d10aa0f684c9043e2ac7b34d91c.1584051142.git.alistair.francis@wdc.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
New y2038 safe 32-bit architectures (like RISC-V) don't support old
syscalls with a 32-bit time_t. The kernel defines new *_time64 versions
of these syscalls. Add some more #ifdefs to syscall.c in linux-user to
allow us to compile without these old syscalls.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <9ffc3cc6226756895157f16622be5f6edfa2aee6.1584051142.git.alistair.francis@wdc.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This change updates TASK_UNMAPPED_BASE (the base address for guest programs) for aarch64. It is needed to allow qemu to work with Thread Sanitizer (TSan), which has specific boundary definitions for memory mappings on different platforms:
https://github.com/llvm/llvm-project/blob/master/compiler-rt/lib/tsan/rtl/tsan_platform.h
Signed-off-by: Lirong Yuan <yuanzi@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200313002813.3857-1-yuanzi@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
print_socket_type() doesn't manage flags and the correct type cannot
be displayed
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200312165530.53450-1-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Analogous to what commit 5dfa88f7 did for setrlimit, this commit
selectively ignores limits for memory-related resources in prlimit64
calls. This is to prevent too restrictive limits from causing QEMU
itself to malfunction.
Signed-off-by: Tobias Koch <tobias.koch@nonterra.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200305202400.27574-1-tobias.koch@nonterra.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
The v8.4-RCPC extension implements some new instructions:
* LDAPUR, LDAPURB, LDAPURH, LDAPRSB, LDAPRSH, LDAPRSW
* STLUR, STLURB, STLURH
These are all in a new subgroup of encodings that sits below the
top-level "Loads and Stores" group in the Arm ARM.
The STLUR* instructions have standard store-release semantics; the
LDAPUR* have Load-AcquirePC semantics, but (as with LDAPR*) we choose
to implement them as the slightly stronger Load-Acquire.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200224172846.13053-4-peter.maydell@linaro.org
The v8.3-RCPC extension implements three new load instructions
which provide slightly weaker consistency guarantees than the
existing load-acquire operations. For QEMU we choose to simply
implement them with a full LDAQ barrier.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200224172846.13053-3-peter.maydell@linaro.org
Use isar feature tests instead of feature bit tests.
Although none of QEMUs current cpus have VFPv3 without D32,
replace the large comment explaining why with one line that
sets ARM_HWCAP_ARM_VFPv3D16 under the correct conditions.
Mirror the test sequence used in the linux kernel.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200224222232.13807-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use this in the places that were checking ARM_FEATURE_VFP, and
are obviously testing for the existance of the register set
as opposed to testing for some particular instruction extension.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200224222232.13807-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Enforce a convention that an isar_feature function that tests a
32-bit ID register always has _aa32_ in its name, and one that
tests a 64-bit ID register always has _aa64_ in its name.
We already follow this except for three cases: thumb_div,
arm_div and jazelle, which all need _aa32_ adding.
(As noted in the comment, isar_feature_aa32_fp16_arith()
is an exception in that it currently tests ID_AA64PFR0_EL1,
but will switch to MVFR1 once we've properly implemented
FP16 for AArch32.)
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200214175116.9164-2-peter.maydell@linaro.org
This patch implements functionalities of following ioctls:
SNDRV_TIMER_IOCTL_START - Start selected alsa timer
Starts the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be started. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
SNDRV_TIMER_IOCTL_STOP - Stop selected alsa timer
Stops the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be stopped. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
SNDRV_TIMER_IOCTL_CONTINUE - Continue selected alsa timer
Continues the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be continued. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
SNDRV_TIMER_IOCTL_PAUSE - Pause selected alsa timer
Pauses the timer device that is selected. The third ioctl's argument is
ignored. Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT"
should be called first to select the timer that is to be paused. If no
timer is selected, the error EBADFD ("File descriptor in bad shape")
is returned.
Implementation notes:
Since all of the implemented ioctls have NULL as their third argument,
their implementation was straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-13-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
SNDRV_TIMER_IOCTL_INFO - Getting information about selected timer
Read information about the selected timer. The information is returned in
the following structure:
struct snd_timer_info {
unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
int card; /* card number */
unsigned char id[64]; /* timer identificator */
unsigned char name[80]; /* timer name */
unsigned long reserved0; /* reserved for future use */
unsigned long resolution; /* average period resolution in ns */
unsigned char reserved[64]; /* reserved for future use */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT" should be
called first to select the timer which information is to be obtained. If no
timer is selected, the error EBADFD ("File descriptor in bad shape") is
returned.
SNDRV_TIMER_IOCTL_PARAMS - Setting parameters for selected timer
Sets parameters for the selected timer. The paramaters are set in the
following structure:
struct snd_timer_params {
unsigned int flags; /* flags - SNDRV_TIMER_PSFLG_* */
unsigned int ticks; /* requested resolution in ticks */
unsigned int queue_size; /* total size of queue (32-1024) */
unsigned int reserved0; /* reserved, was: failure locations */
unsigned int filter; /* event filter */
unsigned char reserved[60]; /* reserved */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT" should be
called first to select the timer which parameters are to be set. If no
timer is selected, the error EBADFD ("File descriptor in bad shape") is
returned.
SNDRV_TIMER_IOCTL_STATUS - Getting status of selected timer
Read status of the selected timer. The status of the timer is returned in
the following structure:
struct snd_timer_status {
struct timespec tstamp; /* Timestamp - last update */
unsigned int resolution; /* current period resolution in ns */
unsigned int lost; /* counter of master tick lost */
unsigned int overrun; /* count of read queue overruns */
unsigned int queue; /* used queue size */
unsigned char reserved[64]; /* reserved */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling this ioctl, the ioctl "SNDRV_TIMER_IOCTL_SELECT" should be
called first to select the timer which status is to be obtained. If no
timer is selected, the error EBADFD ("File descriptor in bad shape") is
returned.
Implementation notes:
All ioctls in this patch have pointer to some kind of a structure
as their third argument. That is the reason why corresponding
definitions were added in 'linux-user/syscall_types.h'. Structure
'snd_timer_status' has field of type 'struct timespec' which is why
a corresponding definition of that structure was also added in
'linux-user/syscall_types.h'. All of these strucutures have some
fields that are of type 'unsigned long'. That is the reason why
separate target structures were defined in 'linux-user/syscall_defs.h'.
Structure 'struct timespec' already had a separate target definition
so that definition was used to define a target structure for
'snd_timer_status'. The rest of the implementation was straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-12-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionality of following ioctl:
SNDRV_TIMER_IOCTL_SELECT - Selecting timer
Selects the timer which id is specified. The timer id is specified in the
following strcuture:
struct snd_timer_select {
struct snd_timer_id id; /* timer ID */
unsigned char reserved[32]; /* reserved */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling the ioctl, the field "tid" should be initialized with the id
information for the timer which is to be selected. If there is no timer
device with the specified id, the error ENODEV ("No such device") is
returned.
Implementation notes:
Ioctl implemented in this patch has a pointer to a
'struct snd_timer_select' as its third argument.
That is the reason why a corresponding definition
was added in 'linux-user/syscall_types.h'. The rest
of the implementation was straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-11-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
SNDRV_TIMER_IOCTL_GINFO - Getting information about specified timer
Read information about the specified timer. The information about the
timer is returned in the following structure:
struct snd_timer_ginfo {
struct snd_timer_id tid; /* requested timer ID */
unsigned int flags; /* timer flags - SNDRV_TIMER_FLG_* */
int card; /* card number */
unsigned char id[64]; /* timer identification */
unsigned char name[80]; /* timer name */
unsigned long reserved0; /* reserved for future use */
unsigned long resolution; /* average period resolution in ns */
unsigned long resolution_min; /* minimal period resolution in ns */
unsigned long resolution_max; /* maximal period resolution in ns */
unsigned int clients; /* active timer clients */
unsigned char reserved[32]; /* reserved */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling the ioctl, the field "tid" should be initialized with the id
information for the timer which information is to be obtained. After the
ioctl call, the rest of the structure fields are filled with values from
the timer device with the specified id. If there is no device with the
specified id, the error ENODEV ("No such device") is returned.
SNDRV_TIMER_IOCTL_GPARAMS - Setting precise period duration
Sets timer precise period duration numerator and denominator in seconds. The
period duration is set in the following structure:
struct snd_timer_gparams {
struct snd_timer_id tid; /* requested timer ID */
unsigned long period_num; /* period duration - numerator */
unsigned long period_den; /* period duration - denominator */
unsigned char reserved[32]; /* reserved */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling the ioctl, the field "tid" should be initialized with the id
information for the timer which period duration is to be set. Also, the
fileds "period_num" and "period_den" should be filled with the period
duration numerator and denominator values that are to be set respectively.
If there is no device with the specified id, the error ENODEV ("No such
device") is returned.
SNDRV_TIMER_IOCTL_GSTATUS - Getting current period resolution
Read timer current period resolution in nanoseconds and period resolution
numerator and denominator in seconds. The period resolution information is
returned in the following structure:
struct snd_timer_gstatus {
struct snd_timer_id tid; /* requested timer ID */
unsigned long resolution; /* current period resolution in ns */
unsigned long resolution_num; /* period resolution - numerator */
unsigned long resolution_den; /* period resolution - denominator */
unsigned char reserved[32]; /* reserved for future use */
};
A pointer to this structure should be passed as the third ioctl's argument.
Before calling the ioctl, the field "tid" should be initialized with the id
information for the timer which period resolution is to be obtained. After
the ioctl call, the rest of the structure fields are filled with values
from the timer device with the specified id. If there is no device with the
specified id, the error ENODEV ("No such device") is returned.
Implementation notes:
All ioctls in this patch have pointer to some kind of a structure as their
third argument. That is the reason why corresponding definitions were added
in 'linux-user/syscall_types.h'. All of these strcutures have some fields
that are of type 'unsigned long'. That is the reason why separate target
structures were defined in 'linux-user/syscall_defs.h'. Also, all of the
structures have a field with type 'struct snd_timer_id' which is the reason
why a separate target structure 'struct target_snd_timer_id' was also
defined. The rest of the implementation was straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-10-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
SNDRV_TIMER_IOCTL_PVERSION - Getting the sound timer version
Read the sound timer version. The third ioctl's argument is
a pointer to an int in which the specified timers version
is returned.
SNDRV_TIMER_IOCTL_NEXT_DEVICE - Getting id information about next timer
Read id information about the next timer device from the sound timer
device list. The id infomration is returned in the following structure:
struct snd_timer_id {
int dev_class; /* timer device class number */
int dev_sclass; /* slave device class number (unused) */
int card; /* card number */
int device; /* device number */
int subdevice; /* sub-device number */
};
The devices in the sound timer device list are arranged by the fields
of this structure respectively (first by dev_class number, then by
card number, ...). A pointer to this structure should be passed as
the third ioctl's argument. Before calling the ioctl, the parameters
of this structure should be initialized in relation to the next timer
device which information is to be obtained. For example, if a wanted
timer device has the device class number equal to or bigger then 2,
the field dev_class should be initialized to 2. After the ioctl call,
the structure fields are filled with values from the next device in
the sound timer device list. If there is no next device in the list,
the structure is filled with "zero" id values (in that case all
fields are filled with value -1).
Implementation notes:
The ioctl 'SNDRV_TIMER_IOCTL_NEXT_DEVICE' has a pointer to a
'struct snd_timer_id' as its third argument. That is the reason why
corresponding definition is added in 'linux-user/syscall_types.h'.
Since all elements of this structure are of type 'int', the rest of
the implementation was straightforward.
The line '#include <linux/rtc.h>' was added to recognize
preprocessor definitions for these ioctls. This needs to be
done only once in this series of commits. Also, the content
of this file (with respect to ioctl definitions) remained
unchanged for a long time, therefore there is no need to
worry about supporting older Linux kernel version.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-8-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Now that all uses have been migrated to `qemu_log' it is no longer
needed.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Josh Kunz <jkz@google.com>
Message-Id: <20200204025416.111409-4-jkz@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This change switches linux-user strace logging to use the newer `qemu_log`
logging subsystem rather than the older `gemu_log` (notice the "g")
logger. `qemu_log` has several advantages, namely that it allows logging
to a file, and provides a more unified interface for configuration
of logging (via the QEMU_LOG environment variable or options).
This change introduces a new log mask: `LOG_STRACE` which is used for
logging of user-mode strace messages.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Josh Kunz <jkz@google.com>
Message-Id: <20200204025416.111409-3-jkz@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Since most calls to `gemu_log` are actually logging unimplemented features,
this change replaces most non-strace calls to `gemu_log` with calls to
`qemu_log_mask(LOG_UNIMP, ...)`. This allows the user to easily log to
a file, and to mask out these log messages if they desire.
Note: This change is slightly backwards incompatible, since now these
"unimplemented" log messages will not be logged by default.
Signed-off-by: Josh Kunz <jkz@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20200204025416.111409-2-jkz@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Improve strace output of various syscalls which either have none
or only int-type parameters.
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191121193351.GA31821@ls3530.fritz.box>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Currently, there is no usage of TARGET_NR_syscall_count for target
xtensa, and there is no obvious indication if there is some planned
usage in future.
CC: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1581596954-2305-10-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Update microblaze syscall numbers based on Linux kernel v5.5.
CC: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1581596954-2305-5-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Update arm syscall numbers based on Linux kernel v5.5.
CC: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1581596954-2305-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
"The purpose of this option is to allow an application to obtain the
security credentials of a Unix stream socket peer. It is analogous to
SO_PEERCRED (which provides authentication using standard Unix credentials
of pid, uid and gid), and extends this concept to other security
models." -- https://lwn.net/Articles/62370/
Until now it was passed to the kernel with an "int" argument and
fails when it was supported by the host because the parameter is
like a filename: it is always a \0-terminated string with no embedded
\0 characters, but is not guaranteed to be ASCII or UTF-8.
I've tested the option with the following program:
/*
* cc -o getpeercon getpeercon.c
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
int main(void)
{
int fd;
struct sockaddr_in server, addr;
int ret;
socklen_t len;
char buf[256];
fd = socket(PF_INET, SOCK_STREAM, 0);
if (fd == -1) {
perror("socket");
return 1;
}
server.sin_family = AF_INET;
inet_aton("127.0.0.1", &server.sin_addr);
server.sin_port = htons(40390);
connect(fd, (struct sockaddr*)&server, sizeof(server));
len = sizeof(buf);
ret = getsockopt(fd, SOL_SOCKET, SO_PEERSEC, buf, &len);
if (ret == -1) {
perror("getsockopt");
return 1;
}
printf("%d %s\n", len, buf);
return 0;
}
On host:
$ ./getpeercon
33 system_u:object_r:unlabeled_t:s0
With qemu-aarch64/bionic without the patch:
$ ./getpeercon
getsockopt: Numerical result out of range
With the patch:
$ ./getpeercon
33 system_u:object_r:unlabeled_t:s0
Bug: https://bugs.launchpad.net/qemu/+bug/1823790
Reported-by: Matthias Lüscher <lueschem@gmail.com>
Tested-by: Matthias Lüscher <lueschem@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200204211901.1731821-1-laurent@vivier.eu>
Some RT signals can be in use by glibc,
it's why SIGRTMIN (34) is generally greater than __SIGRTMIN (32).
So SIGRTMIN cannot be mapped to TARGET_SIGRTMIN.
Instead of swapping only SIGRTMIN and SIGRTMAX, map all the
range [TARGET_SIGRTMIN ... TARGET_SIGRTMAX - X] to
[__SIGRTMIN + X ... SIGRTMAX ]
(SIGRTMIN is __SIGRTMIN + X).
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Taylor Simson <tsimpson@quicinc.com>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200212125658.644558-5-laurent@vivier.eu>
Valid signal numbers are between 1 (SIGHUP) and SIGRTMAX.
System includes define _NSIG to SIGRTMAX + 1, but
QEMU (like kernel) defines TARGET_NSIG to TARGET_SIGRTMAX.
Fix all the checks involving the signal range.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200212125658.644558-4-laurent@vivier.eu>
No functional changes. Prepare the field for future fixes.
Remove memset(.., 0, ...) that is useless on a static array
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200212125658.644558-3-laurent@vivier.eu>
This signal is defined for all other targets and we will need it later
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
[pm: that this was actually an ABI change in the hppa kernel (at kernel
version 3.17, kernel commit 1f25df2eff5b25f52c139d). Before that
SIGRTMIN was 37...
All our other HPPA TARGET_SIG* values are for the updated
ABI following that commit, so using 32 for SIGRTMIN is
the right thing for us.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <20200212125658.644558-2-laurent@vivier.eu>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
TARGET_GPROF is the same for all targets, write it to
config-host.mak instead.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: <20200204161104.21077-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch implements functionalities of following ioctls:
RTC_VL_READ - Read voltage low detection information
Read the voltage low for RTCs that support voltage low.
The third ioctl's' argument points to an int in which
the voltage low is returned.
RTC_VL_CLR - Clear voltage low information
Clear the information about voltage low for RTCs that
support voltage low. The third ioctl(2) argument is
ignored.
Implementation notes:
Since one ioctl has a pointer to 'int' as its third agrument,
and another ioctl has NULL as its third argument, their
implementation was straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-7-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
RTC_PLL_GET - Getting PLL correction
Read the PLL correction for RTCs that support PLL. The PLL correction
is returned in the following structure:
struct rtc_pll_info {
int pll_ctrl; /* placeholder for fancier control */
int pll_value; /* get/set correction value */
int pll_max; /* max +ve (faster) adjustment value */
int pll_min; /* max -ve (slower) adjustment value */
int pll_posmult; /* factor for +ve correction */
int pll_negmult; /* factor for -ve correction */
long pll_clock; /* base PLL frequency */
};
A pointer to this structure should be passed as the third
ioctl's argument.
RTC_PLL_SET - Setting PLL correction
Sets the PLL correction for RTCs that support PLL. The PLL correction
that is set is specified by the rtc_pll_info structure pointed to by
the third ioctl's' argument.
Implementation notes:
All ioctls in this patch have a pointer to a structure rtc_pll_info
as their third argument. All elements of this structure are of
type 'int', except the last one that is of type 'long'. That is
the reason why a separate target structure (target_rtc_pll_info)
is defined in linux-user/syscall_defs. The rest of the
implementation is straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-6-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
RTC_WKALM_SET, RTC_WKALM_GET - Getting/Setting wakeup alarm
Some RTCs support a more powerful alarm interface, using these
ioctls to read or write the RTC's alarm time (respectively)
with this structure:
struct rtc_wkalrm {
unsigned char enabled;
unsigned char pending;
struct rtc_time time;
};
The enabled flag is used to enable or disable the alarm
interrupt, or to read its current status; when using these
calls, RTC_AIE_ON and RTC_AIE_OFF are not used. The pending
flag is used by RTC_WKALM_RD to report a pending interrupt
(so it's mostly useless on Linux, except when talking to the
RTC managed by EFI firmware). The time field is as used with
RTC_ALM_READ and RTC_ALM_SET except that the tm_mday, tm_mon,
and tm_year fields are also valid. A pointer to this structure
should be passed as the third ioctl's argument.
Implementation notes:
All ioctls in this patch have a pointer to a structure
rtc_wkalrm as their third argument. That is the reason why
corresponding definition is added in linux-user/syscall_types.h.
Since all elements of this structure are either of type
'unsigned char' or 'struct rtc_time' (that was covered in one
of previous patches), the rest of the implementation is
straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-5-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
RTC_IRQP_READ, RTC_IRQP_SET - Getting/Setting IRQ rate
Read and set the frequency for periodic interrupts, for RTCs
that support periodic interrupts. The periodic interrupt must
be separately enabled or disabled using the RTC_PIE_ON,
RTC_PIE_OFF requests. The third ioctl's argument is an
unsigned long * or an unsigned long, respectively. The value
is the frequency in interrupts per second. The set of allow‐
able frequencies is the multiples of two in the range 2 to
8192. Only a privileged process (i.e., one having the
CAP_SYS_RESOURCE capability) can set frequencies above the
value specified in /proc/sys/dev/rtc/max-user-freq. (This
file contains the value 64 by default.)
RTC_EPOCH_READ, RTC_EPOCH_SET - Getting/Setting epoch
Many RTCs encode the year in an 8-bit register which is either
interpreted as an 8-bit binary number or as a BCD number. In
both cases, the number is interpreted relative to this RTC's
Epoch. The RTC's Epoch is initialized to 1900 on most systems
but on Alpha and MIPS it might also be initialized to 1952,
1980, or 2000, depending on the value of an RTC register for
the year. With some RTCs, these operations can be used to
read or to set the RTC's Epoch, respectively. The third
ioctl's argument is an unsigned long * or an unsigned long,
respectively, and the value returned (or assigned) is the
Epoch. To set the RTC's Epoch the process must be privileged
(i.e., have the CAP_SYS_TIME capability).
Implementation notes:
All ioctls in this patch have a pointer to 'ulong' as their
third argument. That is the reason why corresponding parts
of added code in linux-user/syscall_defs.h contain special
handling related to 'ulong' type: they use 'abi_ulong' type
to make sure that ioctl's code is calculated correctly for
both 32-bit and 64-bit targets. Also, 'MK_PTR(TYPE_ULONG)'
is used for the similar reason in linux-user/ioctls.h.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-4-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
RTC_RD_TIME - Getting RTC time
Returns this RTC's time in the following structure:
struct rtc_time {
int tm_sec;
int tm_min;
int tm_hour;
int tm_mday;
int tm_mon;
int tm_year;
int tm_wday; /* unused */
int tm_yday; /* unused */
int tm_isdst; /* unused */
};
The fields in this structure have the same meaning and ranges
as the tm structure described in gmtime man page. A pointer
to this structure should be passed as the third ioctl's argument.
RTC_SET_TIME - Setting RTC time
Sets this RTC's time to the time specified by the rtc_time
structure pointed to by the third ioctl's argument. To set
the RTC's time the process must be privileged (i.e., have the
CAP_SYS_TIME capability).
RTC_ALM_READ, RTC_ALM_SET - Getting/Setting alarm time
Read and set the alarm time, for RTCs that support alarms.
The alarm interrupt must be separately enabled or disabled
using the RTC_AIE_ON, RTC_AIE_OFF requests. The third
ioctl's argument is a pointer to a rtc_time structure. Only
the tm_sec, tm_min, and tm_hour fields of this structure are
used.
Implementation notes:
All ioctls in this patch have pointer to a structure rtc_time
as their third argument. That is the reason why corresponding
definition is added in linux-user/syscall_types.h. Since all
elements of this structure are of type 'int', the rest of the
implementation is straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-3-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This patch implements functionalities of following ioctls:
RTC_AIE_ON, RTC_AIE_OFF - Alarm interrupt enabling on/off
Enable or disable the alarm interrupt, for RTCs that support
alarms. The third ioctl's argument is ignored.
RTC_UIE_ON, RTC_UIE_OFF - Update interrupt enabling on/off
Enable or disable the interrupt on every clock update, for
RTCs that support this once-per-second interrupt. The third
ioctl's argument is ignored.
RTC_PIE_ON, RTC_PIE_OFF - Periodic interrupt enabling on/off
Enable or disable the periodic interrupt, for RTCs that sup‐
port these periodic interrupts. The third ioctl's argument
is ignored. Only a privileged process (i.e., one having the
CAP_SYS_RESOURCE capability) can enable the periodic interrupt
if the frequency is currently set above the value specified in
/proc/sys/dev/rtc/max-user-freq.
RTC_WIE_ON, RTC_WIE_OFF - Watchdog interrupt enabling on/off
Enable or disable the Watchdog interrupt, for RTCs that sup-
port this Watchdog interrupt. The third ioctl's argument is
ignored.
Implementation notes:
Since all of involved ioctls have NULL as their third argument,
their implementation was straightforward.
The line '#include <linux/rtc.h>' was added to recognize
preprocessor definitions for these ioctls. This needs to be
done only once in this series of commits. Also, the content
of this file (with respect to ioctl definitions) remained
unchanged for a long time, therefore there is no need to
worry about supporting older Linux kernel version.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Message-Id: <1579117007-7565-2-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Function "do_ioctl()" located in file "syscall.c" was missing
an option for TYPE_LONG and TYPE_ULONG. This caused some ioctls
to not be recognised because they had the third argument that was
of type 'long' or 'unsigned long'.
For example:
Since implemented ioctls RTC_IRQP_SET and RTC_EPOCH_SET
are of type IOW(writing type) that have unsigned long as
their third argument, they were not recognised in QEMU
before the changes of this patch.
Signed-off-by: Filip Bozuta <Filip.Bozuta@rt-rk.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1579117007-7565-14-git-send-email-Filip.Bozuta@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
KCOV_INIT_TRACE ioctl plays the role in kernel coverage tracing.
This ioctl's third argument is of type 'unsigned long', and the
implementation in QEMU is straightforward.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-13-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
KCOV_ENABLE and KCOV_DISABLE play the role in kernel coverage
tracing. These ioctls do not use the third argument of ioctl()
system call and are straightforward to implement in QEMU.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-12-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
FDFMTBEG, FDFMTTRK, and FDFMTEND ioctls provide means for controlling
formatting of a floppy drive.
FDFMTTRK's third agrument is a pointer to the structure:
struct format_descr {
unsigned int device,head,track;
};
defined in Linux kernel header <linux/fd.h>.
Since all fields of the structure are of type 'unsigned int', there is
no need to define "target_format_descr".
FDFMTBEG and FDFMTEND ioctls do not use the third argument.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-9-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
FDSETEMSGTRESH, FDSETMAXERRS, and FDGETMAXERRS ioctls are commands
for controlling error reporting of a floppy drive.
FDSETEMSGTRESH's third agrument is a pointer to the structure:
struct floppy_max_errors {
unsigned int
abort, /* number of errors to be reached before aborting */
read_track, /* maximal number of errors permitted to read an
* entire track at once */
reset, /* maximal number of errors before a reset is tried */
recal, /* maximal number of errors before a recalibrate is
* tried */
/*
* Threshold for reporting FDC errors to the console.
* Setting this to zero may flood your screen when using
* ultra cheap floppies ;-)
*/
reporting;
};
defined in Linux kernel header <linux/fd.h>.
Since all fields of the structure are of type 'unsigned int', there is
no need to define "target_floppy_max_errors".
FDSETMAXERRS and FDGETMAXERRS ioctls do not use the third argument.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-8-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
These FS_IOC32_<GET|SET>VERSION ioctls are identical to
FS_IOC_<GET|SET>VERSION ioctls, but without the anomaly of their
number defined as if their third argument is of type long, while
it is treated internally in kernel as is of type int.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-4-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
These FS_IOC32_<GET|SET>FLAGS ioctls are identical to
FS_IOC_<GET|SET>FLAGS ioctls, but without the anomaly of their
number defined as if their third argument is of type long, while
it is treated internally in kernel as is of type int.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
A very specific thing for these two ioctls is that their code
implies that their third argument is of type 'long', but the
kernel uses that argument as if it is of type 'int'. This anomaly
is recognized also in commit 6080723 (linux-user: Implement
FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls).
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579214991-19602-2-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
With bad luck, we can wind up with no space at all for brk,
which will generally cause the guest malloc to fail.
This bad luck is easier to come by with ET_DYN (PIE) binaries,
where either the stack or the interpreter (ld.so) gets placed
immediately after the main executable.
But there's nothing preventing this same thing from happening
with ET_EXEC (normal) binaries, during probe_guest_base().
In both cases, reserve some extra space via mmap and release
it back to the system after loading the interpreter and
allocating the stack.
The choice of 16MB is somewhat arbitrary. It's enough for libc
to get going, but without being so large that 32-bit guests or
32-bit hosts are in danger of running out of virtual address space.
It is expected that libc will be able to fall back to mmap arenas
after the limited brk space is exhausted.
Launchpad: https://bugs.launchpad.net/qemu/+bug/1749393
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200117230245.5040-1-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
In init_guest_space, we need to mmap guest space. If the return address
of first mmap is not aligned with align, which was set to MAX(SHMLBA,
qemu_host_page_size), we need unmap and a new mmap(space is larger than
first size). The new size is named real_size, which is aligned_size +
qemu_host_page_size. alugned_size is the guest space size. And add a
qemu_host_page_size to avoid memory error when we align real_start
manually (ROUND_UP(real_start, align)). But when SHMLBA >
qemu_host_page_size, the added size will smaller than the size to align,
which can make a mistake(in a mips machine, it appears). So change
real_size from aligned_size +qemu_host_page_size
to aligned_size + align will solve it.
Signed-off-by: Xinyu Li <precinct@mail.ustc.edu.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191213022919.5934-1-precinct@mail.ustc.edu.cn>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We currently search both the root and the tcg/ directories for tcg
files:
$ git grep '#include "tcg/' | wc -l
28
$ git grep '#include "tcg[^/]' | wc -l
94
To simplify the preprocessor search path, unify by expliciting the
tcg/ directory.
Patch created mechanically by running:
$ for x in \
tcg.h tcg-mo.h tcg-op.h tcg-opc.h \
tcg-op-gvec.h tcg-gvec-desc.h; do \
sed -i "s,#include \"$x\",#include \"tcg/$x\"," \
$(git grep -l "#include \"$x\""); \
done
Acked-by: David Gibson <david@gibson.dropbear.id.au> (ppc parts)
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200101112303.20724-2-philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Code movement in an upcoming patch will show that this file
was implicitly depending on tcg.h being included indirectly.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Provides a blocking call to read a character from the console using
semihosting.chardev, if specified. This takes some careful command
line options to use stdio successfully as the serial ports, monitor
and semihost all want to use stdio. Here's a sample set of command
line options which share stdio between semihost, monitor and serial
ports:
qemu \
-chardev stdio,mux=on,id=stdio0 \
-serial chardev:stdio0 \
-semihosting-config enable=on,chardev=stdio0 \
-mon chardev=stdio0,mode=readline
This creates a chardev hooked to stdio and then connects all of the
subsystems to it. A shorter mechanism would be good to hear about.
Signed-off-by: Keith Packard <keithp@keithp.com>
Message-Id: <20191104204230.12249-1-keithp@keithp.com>
[AJB: fixed up deadlock, minor commit title reword]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Before we introduce blocking semihosting calls we need to ensure we
can restart the system on semi hosting exception. To be able to do
this the EXCP_SEMIHOST operation should be idempotent until it finally
completes. Practically this means ensureing we only update the pc
after the semihosting call has completed.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Keith Packard <keithp@keithp.com>
Convert the final bit of DEBUG_MMAP to a tracepoint and remove the
last remanents of the #ifdef hackery.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191205122518.10010-6-alex.bennee@linaro.org>
The CPU_LOG_PAGE flag is woefully underused and could stand to do
extra duty tracking page changes. If the user doesn't want to see the
details as things change they still have the tracepoints available.
We push the locking into log_page_dump and pass a reason for the
banner text.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191205122518.10010-5-alex.bennee@linaro.org>
For full details we also want to see where the mmaps end up.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191205122518.10010-4-alex.bennee@linaro.org>
It is a pain to re-compile when you need to debug and tracepoints are
a fairly low impact way to instrument QEMU.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191205122518.10010-3-alex.bennee@linaro.org>
It is a pain to re-compile when you need to debug and tracepoints are
a fairly low impact way to instrument QEMU.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191205122518.10010-2-alex.bennee@linaro.org>
The virtual timebase register (VTB) is a 64-bit register which
increments at the same rate as the timebase register, present on POWER8
and later processors.
The register is able to be read/written by the hypervisor and read by
the supervisor. All other accesses are illegal.
Currently the VTB is just an alias for the timebase (TB) register.
Implement the VTB so that is can be read/written independent of the TB.
Make use of the existing method for accessing timebase facilities where
by the compensation is stored and used to compute the value on reads/is
updated on writes.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
[ clg: rebased on current ppc tree ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191128134700.16091-2-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
ARMv8.2 introduced support for Data Cache Clean instructions
to PoP (point-of-persistence) - DC CVAP and PoDP (point-of-deep-persistence)
- DV CVADP. Both specify conceptual points in a memory system where all writes
that are to reach them are considered persistent.
The support provided considers both to be actually the same so there is no
distinction between the two. If none is available (there is no backing store
for given memory) both will result in Data Cache Clean up to the point of
coherency. Otherwise sync for the specified range shall be performed.
Signed-off-by: Beata Michalska <beata.michalska@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191121000843.24844-5-beata.michalska@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
All timestamps were copied to atime instead of to their respective
fields.
Fixes: efa921845c ("linux-user: Add support for translation of statx() syscall")
Signed-off-by: Ariadne Conill <ariadne@dereferenced.org>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191122174040.569252-1-ariadne@dereferenced.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
stime() has been withdrawn from glibc
(12cbde1dae6f "Use clock_settime to implement stime; withdraw stime.")
Implement the target stime() syscall using host
clock_settime(CLOCK_REALTIME, ...) as it is done internally in glibc.
Tested qemu-ppc/x86_64 with:
#include <time.h>
#include <stdio.h>
int main(void)
{
time_t t;
int ret;
/* date -u -d"2019-11-12T15:11:00" "+%s" */
t = 1573571460;
ret = stime(&t);
printf("ret %d\n", ret);
return 0;
}
# date; ./stime; date
Tue Nov 12 14:18:32 UTC 2019
ret 0
Tue Nov 12 15:11:00 UTC 2019
Buglink: https://bugs.launchpad.net/qemu/+bug/1852115
Reported-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20191112142556.6335-1-laurent@vivier.eu>
This value is not, as far as I know, used by any linux software,
but it is set by the kernel and is part of the ABI.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191106113318.10226-13-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We failed to set the secondary return value in %o1
we failed to advance the PC past the syscall,
we failed to adjust regwptr into the new structure,
we stored the stack pointer into the wrong register.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191106113318.10226-12-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We will need a target-specific hook for adjusting registers
in the parent during clone. Add an empty inline function for
each target, and invoke it from the proper places.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191106113318.10226-11-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We will need a target-specific hook for adjusting registers
in the parent during clone. To avoid confusion, rename the
one we have to make it clear it affects the child.
At the same time, pass in the flags from the clone syscall.
We will need them for correct behaviour for Sparc.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191106113318.10226-10-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Use WREG_I0 not WREG_O0 in order to properly save the "ins".
The "outs" were saved separately in setup___siginfo.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20191106113318.10226-8-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
s/UREG_FP/WREG_SP/g
This is non-obvious because the UREG_FP constant is fact wrong.
However, the previous search-and-replace patch made it clear that
UREG_FP expands to WREG_O6, and we can see from the enumeration in
target/sparc/cpu.h that WREG_O6 is in fact WREG_SP, the stack pointer.
The UREG_SP define is unused; remove it.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191106113318.10226-7-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This is non-obvious because the UREG constants are in fact wrong.
s/UREG_I/WREG_O/g
s/UREG_O/WREG_I/g
s/UREG_L/WREG_L/g
These substitutions have identical integer values.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191106113318.10226-6-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This fixes a naming bug wherein we used "UREG_FP" to access the
stack pointer. OTOH, the "UREG_FP" constant was also defined
incorrectly such that it *did* reference the stack pointer.
Note that the kernel legitimately uses the name "FP", because it
utilizes the rolled stack window in processing the system call.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191106113318.10226-5-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This change includes support for all AF_NETLINK socket options up to about
kernel version 5.4 (5.4 is not formally released at the time of writing).
Socket options that were introduced in kernel versions before the oldest
currently stable kernel version are guarded by kernel version macros.
This change has been built under gcc 8.3, and clang 9.0, and it passes
`make check`. The netlink options have been tested by emulating some
non-trival software that uses NETLINK socket options, but they have
not been exaustively verified.
Signed-off-by: Josh Kunz <jkz@google.com>
Message-Id: <20191029224310.164025-1-jkz@google.com>
[lv: updated patch according to CODING_STYLE]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
- use --enable-plugins @ configure
- low impact introspection (-plugin empty.so to measure overhead)
- plugins cannot alter guest state
- example plugins included in source tree (tests/plugins)
- -d plugin to enable plugin output in logs
- check-tcg runs extra tests when plugins enabled
- documentation in docs/devel/plugins.rst
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-tcg-plugins-281019-4' into staging
TCG Plugins initial implementation
- use --enable-plugins @ configure
- low impact introspection (-plugin empty.so to measure overhead)
- plugins cannot alter guest state
- example plugins included in source tree (tests/plugins)
- -d plugin to enable plugin output in logs
- check-tcg runs extra tests when plugins enabled
- documentation in docs/devel/plugins.rst
# gpg: Signature made Mon 28 Oct 2019 15:13:23 GMT
# gpg: using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* remotes/stsquad/tags/pull-tcg-plugins-281019-4: (57 commits)
travis.yml: enable linux-gcc-debug-tcg cache
MAINTAINERS: add me for the TCG plugins code
scripts/checkpatch.pl: don't complain about (foo, /* empty */)
.travis.yml: add --enable-plugins tests
include/exec: wrap cpu_ldst.h in CONFIG_TCG
accel/stubs: reduce headers from tcg-stub
tests/plugin: add hotpages to analyse memory access patterns
tests/plugin: add instruction execution breakdown
tests/plugin: add a hotblocks plugin
tests/tcg: enable plugin testing
tests/tcg: drop test-i386-fprem from TESTS when not SLOW
tests/tcg: move "virtual" tests to EXTRA_TESTS
tests/tcg: set QEMU_OPTS for all cris runs
tests/tcg/Makefile.target: fix path to config-host.mak
tests/plugin: add sample plugins
linux-user: support -plugin option
vl: support -plugin option
plugin: add qemu_plugin_outs helper
plugin: add qemu_plugin_insn_disas helper
plugin: expand the plugin_init function to include an info block
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
To avoid too much duplication add a wrapper that the existing trace
and the new plugin calls can live in. We could move the -strace code
here as well but that is left for a future series as the code is
subtly different between the bsd and linux.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[AJB: wrap in syscall-trace.h, expand commit msg]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
The CPU loop tagged all the queued signals as QEMU_SI_KILL while it was
filling the `_sigfault` part of `siginfo`: this caused QEMU to copy the
wrong fields over to the userspace program.
Make sure the fault address recorded by the MMU is is stored in the CPU
environment structure.
In case of memory faults store the exception address into `siginfo`.
Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Continue setting, but not relying upon, env->hflags.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191023150057.25731-24-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Continue setting, but not relying upon, env->hflags.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191023150057.25731-23-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Begin setting, but not relying upon, env->hflags.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20191023150057.25731-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the format is not the syscall last argument, a comma is append.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191021114857.20538-9-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Extract common print_sockfd() from various socket related syscalls.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20191021114857.20538-7-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
In any of these `*_for_each_*` functions, the last entry in the buffer (so the
"remaining length in the buffer" `len` is equal to the length of the
entry `nlmsg_len`/`nla_len`/etc) has size that is not a multiple of the
alignment, the aligned lengths `*_ALIGN(*_len)` will be greater than `len`.
Since `len` is unsigned (`size_t`), it underflows and the loop will read
pass the buffer.
This may manifest as random EINVAL or EOPNOTSUPP error on IO or network
system calls.
Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191018001920.178283-1-scw@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Fix the CBAR register implementation for Cortex-A53,
Cortex-A57, Cortex-A72
* Fix direct booting of Linux kernels on emulated CPUs
which have an AArch32 EL3 (incorrect NSACR settings
meant they could not access the FPU)
* semihosting cleanup: do more work at translate time
and less work at runtime
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20190927' into staging
target-arm queue:
* Fix the CBAR register implementation for Cortex-A53,
Cortex-A57, Cortex-A72
* Fix direct booting of Linux kernels on emulated CPUs
which have an AArch32 EL3 (incorrect NSACR settings
meant they could not access the FPU)
* semihosting cleanup: do more work at translate time
and less work at runtime
# gpg: Signature made Fri 27 Sep 2019 15:32:43 BST
# gpg: using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20190927:
hw/arm/boot: Use the IEC binary prefix definitions
hw/arm/boot.c: Set NSACR.{CP11,CP10} for NS kernel boots
tests/tcg: add linux-user semihosting smoke test for ARM
target/arm: remove run-time semihosting checks for linux-user
target/arm: remove run time semihosting checks
target/arm: handle A-profile semihosting at translate time
target/arm: handle M-profile semihosting at translate time
tests/tcg: clean-up some comments after the de-tangling
target/arm: fix CBAR register for AArch64 CPUs
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# tests/tcg/arm/Makefile.target
Now we do all our checking at translate time we can make cpu_loop a
little bit simpler. We also introduce a simple linux-user semihosting
test case to defend the functionality. The out-of-tree softmmu based
semihosting tests are still more comprehensive.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20190913151845.12582-6-alex.bennee@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We were incorrectly using the 64-bit AIX ABI instead of the 32-bit
SYSV ABI for setting NIP for the signal handler.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
FDFLUSH is used for flushing buffers of floppy drives. Support in
QEMU is needed because some of Debian packages use this ioctl while
running post-build tests. One such example is 'tar' package.
Signed-off-by: Yunqiang Su <ysu@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1567601968-26946-5-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
FIOGETOWN and FIOSETOWN ioctls have platform-specific definitions,
hence non-standard definition in QEMU too.
Other than that, they both have a single integer argument, and their
functionality is emulated in a straightforward way.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1567601968-26946-4-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
RNDRESEEDCRNG is a newer ioctl (added in kernel 4.17), and an
"ifdef" guard is used for that reason in this patch.
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <1567601968-26946-3-git-send-email-aleksandar.markovic@rt-rk.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
QEMU_STRACE and QEMU_RAND_SEED are handled by the parse_args, no need to
do it again in main.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190906165736.5612-1-jcmvbkbc@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Xtensa binaries built for call0 ABI don't rotate register window on
function calls and returns. Invocation of signal handlers from the
kernel is therefore different in windowed and call0 ABIs.
There's currently no way to determine xtensa ELF binary ABI from the
binary itself. Add handler for the -xtensa-abi-call0 command line
parameter/QEMU_XTENSA_ABI_CALL0 envitonment variable to the qemu-user
and record ABI choice. Use it to initialize PS.WOE in xtensa_cpu_reset.
Check PS.WOE in setup_rt_frame to determine how a signal should be
delivered.
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Message-Id: <20190906165713.5558-1-jcmvbkbc@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This is needed to support debugging PIE ELF binaries running under QEMU
user mode. Currently, `code_offset` and `data_offset` remain unset for
all ELF binaries, so GDB is unable to correctly locate the position of
the binary's text and data.
The fields `code_offset`, and `data_offset` were originally added way
back in 2006 to support debugging of bFMT executables (978efd6aac),
and support was just never added for ELF. Since non-PIE binaries are
loaded at exactly the address specified in the binary, GDB does not need
to relocate any symbols, so the buggy behavior is not normally observed.
http://sourceware.org/gdb/onlinedocs/gdb/General-Query-Packets.html#index-qOffsets-packet
Buglink: https://bugs.launchpad.net/qemu/+bug/1528239
Signed-off-by: Josh Kunz <jkz@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190816233422.16715-1-jkz@google.com>
[lv: added link to documentation]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Limit the virtual address space for M-profile cpus to 2GB,
so that we avoid all of the magic addresses in the top half
of the M-profile system map.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190822185929.16891-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Turn the scalar macro into a functional macro. Move the creation
of the cpu up a bit within main() so that we can pass it to the
invocation of MAX_RESERVED_VA. Delay the validation of the -R
parameter until MAX_RESERVED_VA is computed.
So far no changes to any of the MAX_RESERVED_VA macros to actually
use the cpu in any way, but ARM will need it.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20190822185929.16891-2-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Add support for the memfd_create syscall. If the host does not have the
libc wrapper, translate to a direct syscall with NC-macro.
Buglink: https://bugs.launchpad.net/qemu/+bug/1734792
Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190819180947.180725-1-scw@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Just passing NULL means we end up ignoring the bad dfilter spec
instead of reporting it and exiting as we should.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190830143648.2967-1-alex.bennee@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
