Commit 658f2dc97 accidentally dropped the cast to the target type of
the value loaded by get_user(). The most visible effect of this would
be that the sequence "uint64_t v; get_user_u32(v, addr)" would sign
extend the 32 bit loaded value into v rather than zero extending as
would be expected for a _u32 accessor. Put the cast back again to
restore the old behaviour.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
CPUs are never added to the composition tree, so delete is achieved
simply by removing the last references to them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Since commit 65dee38052 (target-i386:
move cpu_reset and reset callback to cpu.c) the x86 CPU is reset through
cpu_init() but was still reset immediately after in linux-user and
bsd-user. Clean this up.
Similarly in linux-user/syscall.c it is also reset after cpu_copy().
But that's a bug of its own, fixing which poses a semantic change.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
According to man reboot(2), the 4th argument is only used with
LINUX_REBOOT_CMD_RESTART2. In other cases, trying to convert
the value can generate EFAULT.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
SO_SNDTIMEO and SO_RCVTIMEO take a struct timeval, not an int
To test this, you can use :
QEMU_STRACE= ping localhost 2>&1 |grep TIMEO
568 setsockopt(3,SOL_SOCKET,SO_SNDTIMEO,{1,0},8) = 0
568 setsockopt(3,SOL_SOCKET,SO_RCVTIMEO,{1,0},8) = 0
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
All parameters must be swapped before the call of do_msgrcv().
Allow faked (debian fakeroot daemon) to work properly.
WITHOUT this patch:
$ faked-sysv --foreground --debug
using 1723744788 as msg key
msg_key=1723744788
1723744788:431
FAKEROOT: msg=131072, key=1723744788
FAKEROOT: r=-1, received message type=-150996052, message=-160219330
FAKEROOT, get_msg: Bad address
r=14, EINTR=4
fakeroot: clearing up message queues and semaphores, signal=-1
fakeroot: database save FAILED
WITH this patch:
$ faked-sysv --foreground --debug
using 1569385744 as msg key
msg_key=1569385744
1569385744:424
FAKEROOT: msg=0, key=1569385744
^C
fakeroot: clearing up message queues and semaphores, signal=2
fakeroot: database save FAILED
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Alpha, like s390x, passes all select arguments in registers.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <rth@twiddle.net>
The values of F_RDLCK, F_WRLCK, F_UNLCK, F_EXLCK, F_SHLCK
differ between alpha and other linux architectures.
This patch allows to run "dpkg" (database lock).
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <rth@twiddle.net>
* 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf: (31 commits)
PPC: linux-user: Calculate context pointer explicitly
target-ppc: Error out for -cpu host on unknown PVR
target-ppc: Slim conversion of model definitions to QOM subclasses
PPC: Bring EPR support closer to reality
PPC: KVM: set has-idle in guest device tree
kvm: Update kernel headers
openpic: fix CTPR and de-assertion of interrupts
openpic: move IACK to its own function
openpic: IRQ_check: search the queue a word at a time
openpic: fix sense and priority bits
openpic: add some bounds checking for IRQ numbers
openpic: use standard bitmap operations
Revert "openpic: Accelerate pending irq search"
openpic: always call IRQ_check from IRQ_get_next
openpic/fsl: critical interrupts ignore mask before v4.1
openpic: make ctpr signed
openpic: rework critical interrupt support
openpic: make register names correspond better with hw docs
ppc/booke: fix crit/mcheck/debug exceptions
openpic: lower interrupt when reading the MSI register
...
Unconditional bswap replaced by __get_user/__put_user.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The previous formuation with multiple assignments to __typeof(*hptr) falls
down when hptr is qualified const. E.g. with const struct S *p, p->f is
also qualified const.
With this formulation, there's no assignment to any local variable.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
MIPS only supports 31 bits of virtual address space for user space, so let's
make sure we stay within that limit with our preallocated memory block.
This fixes the MIPS user space targets when executed without command line
option.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Peter Maydell recommended the change to be more proper. The result was tested
and shows coming up with the same proper value.
Signed-off-by: Samuel Seay <LightningTH@GMail.com>
[agraf: change subject]
Signed-off-by: Alexander Graf <agraf@suse.de>
Removed h2g() macro around the ka->_sa_handler due to the _sa_handler being a
guest memory address.
Changed the __put_user to put_user as it was attempting to put a value at the
stack address but the new address is a guest memory address, __put_user is
for host memory addresses.
Signed-off-by: Samuel Seay <LightningTH@GMail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[agraf: change subject line, reformat commit message]
Signed-off-by: Alexander Graf <agraf@suse.de>
Make the user path more like the system path. Prepare for more kinds
of runtime exceptions. Rename ILC to ILEN to make it clear that we
want to pass around a full instruction length, rather than a "code"
that happens to be stored one bit left in a larger field.
Signed-off-by: Richard Henderson <rth@twiddle.net>
instead use the correct headers that define these functions.
Requested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: John Spencer <maillist-qemu@barfooze.de>
Reviewed-by: Amos Kong <kongjianjun@gmail.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* bonzini/header-dirs: (45 commits)
janitor: move remaining public headers to include/
hw: move executable format header files to hw/
fpu: move public header file to include/fpu
softmmu: move remaining include files to include/ subdirectories
softmmu: move include files to include/sysemu/
misc: move include files to include/qemu/
qom: move include files to include/qom/
migration: move include files to include/migration/
monitor: move include files to include/monitor/
exec: move include files to include/exec/
block: move include files to include/block/
qapi: move include files to include/qobject/
janitor: add guards to headers
qapi: make struct Visitor opaque
qapi: remove qapi/qapi-types-core.h
qapi: move inclusions of qemu-common.h from headers to .c files
ui: move files to ui/ and include/ui/
qemu-ga: move qemu-ga files to qga/
net: reorganize headers
net: move net.c to net/
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
this declaration is wrong:
the correct prototype on linux is:
int setgroups(size_t size, const gid_t *list);
since by default musl libc exposes this symbol in unistd.h
additionally to grp.h, the wrong declaration causes a build error.
the proper fix is to simply include the correct header.
Signed-off-by: John Spencer <maillist-qemu@barfooze.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* afaerber/qom-cpu:
target-i386: Postpone cpuid_level update to realize time
target-i386: Use define for cpuid vendor string size
target-i386: Separate feature string parsing from CPU model lookup
target-i386/cpu.c: Coding style fixes
qdev: qdev_create(): use error_report() instead of hw_error()
sysemu.h: Include qemu-types.h instead of qemu-common.h
Create qemu-types.h for struct typedefs
qlist.h: Do not include qemu-common.h
qga/channel-posix.c: Include headers it needs
qapi/qmp-registry.c: Include headers it needs
ui/vnc-palette.c: Include headers it needs
user: Rename qemu-types.h to qemu-user-types.h
user: Move *-user/qemu-types.h to main directory
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The Linux syscalls underlying pread() and pwrite() take a 64 bit
offset on all architectures, even if some of them name the syscall
"pread/pwrite" rather than "pread64/pwrite64" for historical reasons.
So move the four QEMU target architectures (arm, i386, sparc,
unicore32) which were defining TARGET_NR_pread/pwrite to define
TARGET_NR_pread64/pwrite64 instead, and drop the TARGET_NR_pread/pwrite
implementation code completely.
(Based on examination of the kernel sources for the four architectures
this patch affects.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The header file is specific for *-user, but I plan to introduce a more
generic qemu-types.h file, so I'm renaming it.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The bsd-user/qemu-types.h and linux-user/qemu-types.h files are almost
the same, but linux-user has the additional definitions of tswapal().
This moves the linux-user file to the main directory, so the same file
can be used by linux-user and bsd-user.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Fixes a clone() emulation bug were the new thread starts
at the point of the syscall and thus clones in a loop.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Avoid speculatively computing flags before every potentially trapping
operation and instead do the flags computation when a trap actually
occurs. This gives approximately 30% speedup in emulation.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
pread64 and pwrite64 pass 64bit parameters which for some architectures need
to be aligned to special argument pairs, creating a gap argument.
Handle this special case the same way we handle it in other places of the code.
Reported-by: Alex Barcelo <abarcelo@ac.upc.edu>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Alex Barcelo <abarcelo@ac.upc.edu>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The SysV PPC32 ABI dictates that long long (64bit) parameters are pass in odd/even
register pairs. Because unlike ARM and MIPS we start at an odd register number,
we can reuse the same aligning code that ARM and MIPS use.
Clarified inline comment that it is SysV ABI that requires long long aligned
parameters - Riku
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
If the attempt to load the guest executable fails, print the
error message as a string, not a number. This requires us to
fix a couple of places in loader_exec() where we were returning
-1 instead of a valid negative errno.
The change allows us to drop the "Unknown binary format" message
because the strerror-enhanced message is now a more self-explanatory
"Error while loading $guest-binary: Exec format error".
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Compare signal numbers in the proper domain.
Convert all of the fields for SIGIO and SIGCHLD.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Validate count between 0 and IOV_MAX. Limit total length of
operation in the same way the kernel does.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
When reading our faked /proc/self/maps from a secondary thread,
we get an invalid stack entry. This is because ts->stack_base is not
initialized in non-primary threads.
However, ts->info is, and the stack layout information we're looking
for is there too. So let's use that one instead!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The statfs syscall should always memset(0) its full struct extent before
writing to it. Newer versions of the syscall use one of the reserved fields
for flags, which would otherwise get stale values from uncleaned memory.
This fixes libarchive for me, which got confused about the return value of
pathconf("/", _PC_REC_XFER_ALIGN) otherwise, as it some times gave old pointers
as return value.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
* 'trivial-patches' of git://github.com/stefanha/qemu:
versatilepb: Use symbolic indices for ARM PIC
qdev: kill bogus comment
qemu-barrier: Fix compiler version check for future gcc versions
hw: Add missing 'static' attribute for QEMUMachine
cleanup useless return sentence
qemu-sockets: Fix compiler warning (regression for MinGW)
vnc: Fix spelling (hellmen -> hellman) in comment
slirp: Fix spelling in comment (enought -> enough, insure -> ensure)
tcg/arm: Use tcg_out_mov_reg rather than inline equivalent code
cpu: Add missing 'static' attribute to qemu_global_mutex
configure: Support empty target list (--target-list=)
hw: Fix return value check for bdrv_read, bdrv_write
This patch cleans up return sentences in the end of void functions.
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Remove two uses of strdup (use g_path_get_basename instead),
and add a comment that this strncpy use is ok.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* stefanha/trivial-patches:
w32: Always use standard instead of native format strings
net/socket: Fix compiler warning (regression for MinGW)
linux-user: Remove redundant null check and replace free by g_free
qemu-timer: simplify qemu_run_timers
TextConsole: saturate escape parameter in TTY_STATE_CSI
curses: don't initialize curses when qemu is daemonized
dtrace backend: add function to reserved words
pflash_cfi01: Fix warning caused by unreachable code
ioh3420: Remove unreachable code
lm4549: Fix buffer overflow
cadence_uart: Fix buffer overflow
qemu-sockets: Fix potential memory leak
qemu-ga: Remove unreachable code after g_error
target-i386: Allow tsc-frequency to be larger then 2.147G
Report from smatch:
linux-user/syscall.c:3632 do_ioctl_dm(220) info:
redundant null check on big_buf calling free()
'big_buf' was allocated by g_malloc0, therefore free was also
replaced by g_free.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
When host and target have differing alignment rules, using a cast
and direct memory operation can result in SIGBUS. Use memcpy instead,
which the compiler will happily optimize when alignment is satisfied.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Since the only user of the extended cpu_list_id() format
was the x86 ?model/?dump/?cpuid output, we can drop it
completely.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Remove the cpu_get_real_ticks() definition from linux-user/main.c.
This has been disabled via #if 0 and unused since commit 1dce7c3c22
in 2006; the definitions we actually use are in qemu-timer.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Now that we default to reserving nearly 4GB of RAM for the guest
address space when running a 32 bit linux-user guest on 64 bit
hosts, users are much more likely to run into it. Reword the
message to be more informative about what failed and provide
suggestions for how to fix things.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
In case when TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64, the last
byte of the target dirent structure (aka d_type byte) was never copied
from the host dirent structure, thus breaking everything that relies
on valid d_type value, e.g. glob(3).
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Declare arg_table to be "static const", and adjust the two users
to also be const.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Also, use g_malloc to avoid NULL-deref upon OOM.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
When running in thumb mode, Linux doesn't evaluate the immediate value
of the svc instruction, but instead just always assumes the syscall number
to be in r7.
This fixes executing go_bootstrap while building go for me.
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Roll the code used to initialize the guest memory space when -R
or -B is used into 'init_guest_space' and then call 'init_guest_space'
from the driver. This way the reserved guest memory space can
be probed for. Calling 'mmap' just once as is currently done is not
guaranteed to succeed since the host address space validation might fail.
Signed-off-by: Meador Inge <meadori@codesourcery.com>
[PMM: Fixed minor whitespace errors.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The current bss clear logic assumes the target mmap address and host
address are the same. Use g2h to translate from the target address
space to the host so we can call memset on it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The code to initialise the target_to_host_errno_table[] array was
accidentally inside the loop through checking and initialising all
the supported ioctls. This was harmless but meant that we reinitialised the
array several hundred times on startup.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fix the SNDCTL_DSP_MAP{IN,OUT}BUF ioctl definitions so that they
refer to a suitably defined target struct layout rather than hardcoding
the ioctl number. This fixes complaints from the syscall_init()
consistency check when running an x86_64-to-x86_64 linux-user qemu.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The definitions for the ioctl numbers TARGET_BLKBSZGET and
TARGET_BLKBSZSET had the wrong size parameters (they are defined
with size_t, not int, even though the ioctl implementations themselves
read and write integers). Since commit 354a0008 we now have an
ioctl wrapper definition for BLKBSZGET and so on an x86-64-to-x86-64
linux-user binary we were triggering the mismatch warning in
syscall_init().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch initializes the cpuid to exactly correct value because
linux kernel will check it.
In addition, the exception types are specified in proper situations.
Then it could make exceptions generated correctly and timely.
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
err was uninitialized, it's not OK to use |=. Spotted by Clang
compiler.
Fix by implementing the earlier statement which initializes the variable.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Alpha uses unbiased priority values in the syscall, with the a3
return value signaling error conditions. Therefore, properly
interpret the libc getpriority as needed for the guest rather
than passing the host value through unchanged.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Name the syscall properly for QEMU, kernel source notwithstanding.
Fix syntax errors in the code thus enabled within do_syscall.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
If we let the kernel handle the implementation of mmap_find_vma,
via an anon mmap, we must use the size as indicated by the user
and not the size truncated to the filesize.
This happens often in ld.so, where we initially mmap the file to
the size of the text+data+bss to reserve an area, then mmap+fixed
over the top to properly handle data and bss.
Signed-off-by: Richard Henderson <rth@twiddle.net>
For each target, only define the bits that appear in
arch/target/include/asm/fcntl.h. Mirror the kernel's
asm-generic layout by handling anything undefined afterward.
Signed-off-by: Richard Henderson <rth@twiddle.net>
We weren't aggregating the exceptions, nor raising signals properly.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Proper signal numbers were not defined, and EXCP_INTERRUPT
was unhandled, leading to all sorts of subtle confusion.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
For command line options which permit '?' meaning 'please list the
permitted values', add support for 'help' as a synonym, by abstracting
the check out into a helper function.
This change means that in some cases where we were being lazy in
our string parsing, "?junk" will now be rejected as an invalid option
rather than being (undocumentedly) treated the same way as "?".
Update the documentation to use 'help' rather than '?', since '?'
is a shell metacharacter and thus prone to fail confusingly if there
is a single character filename in the current working directory and
the '?' has not been escaped. It's therefore better to steer users
towards 'help', though '?' is retained for backwards compatibility.
We do not, however, update the output of the system emulator's -help
(or any documentation autogenerated from the qemu-options.hx which
is the source of the -help text) because libvirt parses our -help
output and will break. At a later date when QEMU provides a better
interface so libvirt can avoid having to do this, we can update the
-help text too.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
glibc 2.16 will remove the undocumented definition of 'struct siginfo'
from <bits/siginfo.h>.
This change is already present in glibc 2.15.90, so qemu compilation
of certain targets (eg. cris-user) breaks.
This struct was always typedef'd to be the same as 'siginfo_t' which
is what POSIX documents, so use that instead.
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Don't use global variables directly but via accessor functions. Rename globals.
Convert macros to functions, add GCC format attributes.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
All the uses of ARM_CPUID() to vary behaviour have now been
removed, so we can delete the ARM_CPUID_* macros now.
The one exception is the TI915T/925T, because of its odd behaviour
where the MIDR value can be changed at runtime.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
If we execute linux-user code that does the following:
* A = mmap()
* execute code in A
* munmap(A)
* B = mmap(), but mmap returns the same address as A
* execute code in B
we end up executing a stale cached tb that contains translated code
from A, while we want new code from B.
This patch adds a TB flush for mmap'ed regions, before we return them,
avoiding the whole issue. It also adds a flush for munmap, so that we
don't execute stale TBs instead of getting a segfault.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Improve the emulation of /proc/self/maps by reading the underlying
host maps file and passing lines through with addresses adjusted
to be guest addresses. This is necessary to avoid false triggers
of the glibc check that a format string containing '%n' is not in
writable memory. (For an example see the bug reported in
https://bugs.launchpad.net/qemu-linaro/+bug/947888 where gpg aborts.)
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
After all target CPUs have been QOM'ified, we no longer need an #ifdef
to switch between object_delete() and g_free() in NPTL thread exit.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
For QOM'ified CPUs we cannot g_free() CPUArchState, we must
object_delete() the object it is embedded into.
Fixes LP#982321 (invalid free() while executing pacman with qemu-arm).
Reported-by: Serge Schneider <serge@xecdesign.com>
Reported-by: Russell Keith Davis <russell@russelldavis.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Serge Schneider <serge@xecdesign.com>
Tested-by: Russell Keith Davis <russell@russelldavis.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Add support for ARM BE8 userspace binaries.
i.e. big-endian data and little-endian code.
In principle LE8 mode is also possible, but AFAIK has never actually
been implemented/used.
System emulation doesn't have any useable big-endian board models,
but should in principle work once you fix that.
Dynamic endianness switching requires messing with data accesses,
preferably with TCG cooperation, and is orthogonal to BE8 support.
Signed-off-by: Paul Brook <paul@codesourcery.com>
[PMM: various changes, mostly as per my suggestions in code review:
* rebase
* use EF_ defines rather than hardcoded constants
* make bswap_code a bool for future VMSTATE macro compatibility
* update comment in cpu.h about TB flags bit field usage
* factor out load-code-and-swap into arm_ld*_code functions and
get_user_code* macros
* fix stray trailing space at end of line
* added braces in disas.c to satisfy checkpatch
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The cpu capabilities passed by the elf loader in AT_HWCAP where
a constant.
Make AT_HWCAP reflect the emulated cpu features in order to give
correct clues to eglibc.
Riku Voipio: fixed to apply to current head
Fix : [Bug 887516] [NEW] VFP support reported for the PXA270
Signed-off-by: Benoit Canet <benoit.canet@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The list of ARM syscall numbers was missing the entry for ppoll,
which meant we were accidentally not providing it. (This wasn't
causing any practical issues beyond warnings about unimplemented
syscalls, because glibc will fall back to another code path if the
syscall isn't present.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Add support for the prctl options PR_GET_NAME and PR_SET_NAME,
which take or return a name in a 16 byte buffer pointed to by arg2.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Clean up the odd indentation of this switch statement before
we double its size by adding new cases to it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
When running 32-on-64 bit guests, we should always reserve as much
virtual memory as we possibly can for the guest process, so it can
never overlap with QEMU address space.
Fortunately we already have the infrastructure for that. All that's
missing is some sane default value to also make use of it!
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
After consulting with Paul Brook, we concluded that it's best to search
the VMA space downwards, so that we don't even get the chance to conflict
with the brk range.
This patch resolves a bunch of allocation conflicts when using -R.
Signed-off-by: Alexander Graf <agraf@suse.de>
[minor changes to get it to apply -- PMM]
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Fallocate gets off_t parameters passed in, so we should also read them out
accordingly.
Signed-off-by: Alexander Graf <agraf@suse.de>
---
v1 -> v2:
- unbreak 64-bit guests
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This patch adds the ioctl wrapper definition for BLKBSZGET.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
