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2012-08-27linux-user: fix emulation of getdentsDmitry V. Levin
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>
2012-08-22linux-user: do_msgrcv: don't leak host_mb upon TARGET_EFAULT failureJim Meyering
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>
2012-08-14linux-user: make host_to_target_cmsg support SO_TIMESTAMP cmsg_typeJing Huang
Signed-off-by: Jing Huang <jing.huang.pku@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-08-14linux-user: make do_setsockopt support SOL_RAW ICMP_FILTER socket optionJing Huang
Signed-off-by: Jing Huang <jing.huang.pku@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-08-14linux-user: pass sockaddr from host to targetJing Huang
Signed-off-by: Jing Huang <jing.huang.pku@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-08-13linux-user: Move target_to_host_errno_table[] setup out of ioctl loopPeter Maydell
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>
2012-08-04alpha-linux-user: Fix the getpriority syscallRichard Henderson
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>
2012-08-04alpha-linux-user: Properly handle the non-rt sigprocmask syscall.Richard Henderson
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>
2012-08-04linux-user: Translate pipe2 flags; add to straceRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2012-08-04linux-user: Handle O_SYNC, O_NOATIME, O_CLOEXEC, O_PATHRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2012-08-04alpha-linux-user: Handle TARGET_SSI_IEEE_RAISE_EXCEPTION properlyRichard Henderson
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>
2012-07-27target-or32: Add linux user supportJia Liu
Add QEMU OpenRISC linux user support. Signed-off-by: Jia Liu <proljc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-04linux-user: Use cpu_reset() after cpu_init() / cpu_copy()Andreas Färber
Eliminates cpu_state_reset() usage. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-05-03linux-user: fix emulation of /proc/self/mapsAlexander Graf
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>
2012-05-03linux-user: Clean up interim solution for exit syscallAndreas Färber
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>
2012-04-15linux-user: Fix exit syscall with QOM CPUAndreas Färber
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>
2012-04-06linux-user: Add support for prctl PR_GET_NAME and PR_SET_NAMEPeter Maydell
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>
2012-04-06linux-user/syscall.c: Fix indentation in prctl handlingPeter Maydell
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>
2012-04-06linux-user: fix fallocateAlexander Graf
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>
2012-04-06linux-user: implement device mapper ioctlsAlexander Graf
This patch implements all ioctls currently implemented by device mapper, enabling us to run dmsetup and kpartx inside of linux-user. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-04-06linux-user: improve fake /proc/self/stat making `ps` not segfault.Fabio Erculiani
With the current fake /proc/self/stat implementation `ps` is segfaulting because it expects to read PID and argv[0] as first and second field respectively, with the latter being enclosed between backets. Reproducing is as easy as running: `ps` inside qemu-user chroot with /proc mounted. Signed-off-by: Fabio Erculiani <lxnay@sabayon.org> Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-03-14Rename CPUState -> CPUArchStateAndreas Färber
Scripted conversion: for file in *.[hc] hw/*.[hc] hw/kvm/*.[hc] linux-user/*.[hc] linux-user/m68k/*.[hc] bsd-user/*.[hc] darwin-user/*.[hc] tcg/*/*.[hc] target-*/cpu.h; do sed -i "s/CPUState/CPUArchState/g" $file done All occurrences of CPUArchState are expected to be replaced by QOM CPUState, once all targets are QOM'ified and common fields have been extracted. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-03-14Rename cpu_reset() to cpu_state_reset()Andreas Färber
Frees the identifier cpu_reset for QOM CPUs (manual rename). Don't hide the parameter type behind explicit casts, use static functions with strongly typed argument to indirect. Signed-off-by: Andreas Färber <afaerber@suse.de> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-10linux-user: brk() debuggingPaul Brook
Fix format type mismatches in do_brk debug printfs. Signed-off-by: Paul Brook <paul@codesourcery.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-02-10linux-user: fail execve() if env/args too bigUlrich Hecht
If the host's page size is equal to or smaller than the target's, native execve() will fail appropriately with E2BIG if called with too big an environment for the target to handle. It may falsely succeed, however, if the host's page size is bigger, and feed the executed target process an environment that is too big for it to handle, at which point QEMU barfs and exits, confusing procmail's autoconf script and causing the build to fail. This patch makes sure that execve() will return E2BIG if the environment is too large for the target. Signed-off-by: Ulrich Hecht <uli@suse.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-02-02linux-user: Implement *listxattr syscallsPeter Maydell
Implement listxattr, flistxattr and llistxattr syscalls. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user/syscall.c: Implement f and l versions of set/get/removexattrPeter Maydell
Implement the f and l versions (operate on fd, don't follow links) of the setxattr, getxattr and removexattr syscalls. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: Allow NULL value pointer in setxattr and getxattrPeter Maydell
It's valid to pass a NULL value pointer to setxattr, so don't fail this case EFAULT. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fix wait* syscall status returnsAlexander Graf
When calling wait4 or waitpid with a status pointer and WNOHANG, the syscall can potentially not modify the status pointer input. Now if we have guest code like: int status = 0; waitpid(pid, &status, WNOHANG); if (status) <breakage> then we have to make sure that in case status did not change we actually return the guest's initialized status variable instead of our own uninitialized. We fail to do so today, as we proxy everything through an uninitialized status variable which for me ended up always containing the last error code. This patch fixes some test cases when building yast2-core in OBS for ARM. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fix QEMU_STRACE=1 segfaultAlexander Graf
While debugging some issues with QEMU_STRACE I stumbled over segmentation faults that were pretty reproducible. Turns out we tried to treat a normal return value as errno, resulting in an access over array boundaries for the resolution. Fix this by allowing failure to resolve invalid errnos into strings. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: add SO_PEERCRED support for getsockoptAkos PASZTORY
Signed-off-by: Akos PASZTORY <akos.pasztory@gmail.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fake /proc/self/auxvAlexander Graf
Gtk tries to read /proc/self/auxv to find its auxv table instead of taking it from its own program memory space. However, when running with linux-user, we see the host's auxv which clearly exposes wrong information. so let's instead expose the guest memory backed auxv tables via /proc/self/auxv as well. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fake /proc/self/statAlexander Graf
The boehm gc finds the program's stack starting pointer by checking /proc/self/stat. Unfortunately, so far it reads qemu's stack pointer which clearly is wrong. So let's instead fake the file so the guest program sees the right address. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: fake /proc/self/mapsAlexander Graf
glibc's pthread_attr_getstack tries to find the stack range from /proc/self/maps. Unfortunately, /proc is usually the host's /proc which means linux-user guests see qemu's stack there. Fake the file with a constructed maps entry that exposes the guest's stack range. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-02-02linux-user: add open() hijack infrastructureAlexander Graf
There are a number of files in /proc that expose host information to the guest program. This patch adds infrastructure to override the open() syscall for guest programs to enable us to on the fly generate guest sensible files. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-12-06linux-user/syscall.c: Don't skip stracing for fcntl64 failure casePeter Maydell
In an fcntl64 failure path, we were returning directly rather than simply breaking out of the switch statement. This skips the strace code for printing the syscall return value, so don't do that. Acked-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-06fix typo: delete redundant semicolonDong Xu Wang
Double semicolons should be single. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-11-09configure: fix detection for xattr.h on modern distributionsAvi Kivity
Modern distributions place xattr.h in /usr/include/sys, and fold libattr.so into libc. They also don't have an ENOATTR. Make configure detect this, and add a qemu-xattr.h file that directs the #include to the right place. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-27linux-user: implement reboot syscallAlexander Graf
For OBS, we're running a full cross-guest inside of a VM. When a build is done there, we reboot the guest as shutdown mechanism. Unfortunately, reboot is not implemented in linux-user. So this mechanism fails, spilling unpretty warnings. This patch implements sys_reboot() emulation. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-10-27linux-user: fix openatAlexander Graf
When running openat using qemu-arm, we stumbled over invalid permissions on the created files. The reason for this is that the mode parameter gets treates as an O_... flag, which it isn't - it's a permission bitmask. This patch removes the needless translation of the mode parameter, rendering permission passing of openat() to work with linux-user. Reported-by: Dirk Mueller <dmueller@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-10-27linux-user: fix abi_(u)long, target_ulong mismatchMatthias Braun
abi_(u)long might be different from target_ulong, so don't use tswapl but introduce a new tswapal Signed-off-by: Matthias Braun <matze@braunis.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2011-09-26Merge remote-tracking branch 'riku/linux-user-for-upstream' into stagingAnthony Liguori
2011-09-16Remove blanks before \n in output stringsStefan Weil
Those blanks violate the coding conventions, see scripts/checkpatch.pl. Blanks missing after colons in the changed lines were added. This patch does not try to fix tabs, long lines and other problems in the changed lines, therefore checkpatch.pl reports many violations. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-09Fix include statements for qemu-common.hStefan Weil
* qemu-common.h is not a system include file, so it should be included with "" instead of <>. Otherwise incremental builds might fail because only local include files are checked for changes. * linux-user/syscall.c included the file twice. Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Jan Kiszka <jan.kiszka@siemens.com> Acked-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-09-09linux-user: Implement setxattr/getxattr/removexattr syscallsAn-Cheng Huang
This patch implements the setxattr, getxattr, and removexattr syscalls if CONFIG_ATTR is enabled. Note that since libattr uses indirect syscalls for these, this change depends on the fix for indirect syscall handling on MIPS. Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: An-Cheng Huang <ancheng@ubnt.com>
2011-09-09linux-user: Fix initialization of the heap contents when allocating new pagesCédric VINCENT
Technically the new mmapped pages are already initialized to zero since they are anonymous, however we have to take care with the contents that come from the remaining part of the previous page: it may contains garbage data due to a previous heap usage (grown then shrunken). This patch completes commit 55f08c84. The problem could be reproduced when emulating the build process of Perl 5.12.3 on ARMedSlack 13.37: make[1]: Entering directory `/tmp/perl-5.12.3/cpan/Compress-Raw-Bzip2' cc -c -I. -fno-strict-aliasing -pipe -fstack-protector \ -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 \ -O2 -DVERSION=\"2.024\" -DXS_VERSION=\"2.024\" -fPIC "-I../.." \ -DBZ_NO_STDIO decompress.c decompress.c: In function 'BZ2_decompress': decompress.c:621:1: internal compiler error: Segmentation fault Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Laurent ALFONSI <laurent.alfonsi@st.com> Signed-off-by: Cédric VINCENT <cedric.vincent@st.com>
2011-08-20Use glib memory allocation and free functionsAnthony Liguori
qemu_malloc/qemu_free no longer exist after this commit. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-25Wrap recv to avoid warningsBlue Swirl
Avoid warnings like these by wrapping recv(): CC slirp/ip_icmp.o /src/qemu/slirp/ip_icmp.c: In function 'icmp_receive': /src/qemu/slirp/ip_icmp.c:418:5: error: passing argument 2 of 'recv' from incompatible pointer type [-Werror] /usr/local/lib/gcc/i686-mingw32msvc/4.6.0/../../../../i686-mingw32msvc/include/winsock2.h:547:32: note: expected 'char *' but argument is of type 'struct icmp *' Remove also casts used to avoid warnings. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-13linux-user: make MIPS and ARM eabi use same argument reorderingRiku Voipio
MIPS uses similar calling convention than ARM eabi, where when using 64-bit values some registers are skipped. This patch makes MIPS and ARM eabi share the argument reordering code. This affects ftruncate64, creating insane sized fails (or just failing). Cc: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2011-07-12mips: rlimit codes are not the sameWesley W. Terpstra
The codes for get/setrlimit differ between linux target platforms. This patch adds conversion. This is important else programs (rsyslog, python, ...) can go into a near infinite loop trying to close all the file descriptors from 0 to -1. Signed-off-by: Wesley W. Terpstra <terpstra@debian.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
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