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2018-05-03linux-user: remove useless padding in flock64 structureLaurent Vivier1-21/+4
Since commit 8efb2ed5ec ("linux-user: Correct signedness of target_flock l_start and l_len fields"), flock64 structure uses abi_llong for l_start and l_len in place of "unsigned long long" this should force them to be aligned accordingly to the target rules. So we can remove the padding field and the QEMU_PACKED attribute. I have compared the result of the following program before and after the change: cat -> flock64_dump <<EOF p/d sizeof(struct target_flock64) p/d &((struct target_flock64 *)0)->l_type p/d &((struct target_flock64 *)0)->l_whence p/d &((struct target_flock64 *)0)->l_start p/d &((struct target_flock64 *)0)->l_len p/d &((struct target_flock64 *)0)->l_pid quit EOF for file in build/all/*-linux-user/qemu-* ; do echo $file gdb -batch -nx -x flock64_dump $file 2> /dev/null done The sizeof() changes because we remove the QEMU_PACKED. The new size is 32 (except for i386 and m68k) and this is the real size of "struct flock64" on the target architecture. The following architectures differ: aarch64_be, aarch64, alpha, armeb, arm, cris, hppa, nios2, or1k, riscv32, riscv64, s390x. For a subset of these architectures, I have checked with the following program the new structure is the correct one: #include <stdio.h> #define __USE_LARGEFILE64 #include <fcntl.h> int main(void) { printf("struct flock64 %d\n", sizeof(struct flock64)); printf("l_type %d\n", &((struct flock64 *)0)->l_type); printf("l_whence %d\n", &((struct flock64 *)0)->l_whence); printf("l_start %d\n", &((struct flock64 *)0)->l_start); printf("l_len %d\n", &((struct flock64 *)0)->l_len); printf("l_pid %d\n", &((struct flock64 *)0)->l_pid); } [I have checked aarch64, alpha, hppa, s390x] For ARM, the target_flock64 becomes the EABI definition, so we need to define the OABI one in place of the EABI one and use it when it is needed. I have also fixed the alignment value for sh4 (to align llong on 4 bytes) (see c2e3dee6e0 "linux-user: Define target alignment size") [We should check alignment properties for cris, nios2 and or1k] Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180502215730.28162-1-laurent@vivier.eu>
2018-04-03linux-user: fix TARGET___O_TMPFILE for sparcLaurent Vivier1-0/+1
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180402102453.9883-3-laurent@vivier.eu>
2018-04-03linux-user: define TARGET_ARCH_HAS_KA_RESTORERLaurent Vivier1-0/+4
Sparc as an extended sigaction structure containing the field ka_restorer used in place of sa_restorer. Define TARGET_ARCH_HAS_KA_RESTORER and use it with sparc. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180402102453.9883-2-laurent@vivier.eu>
2018-03-17Merge remote-tracking branch 'remotes/xtensa/tags/20180316-xtensa' into stagingPeter Maydell1-3/+62
target/xtensa linux-user support. - small cleanup for xtensa registers dumping (-d cpu); - add support for debugging linux-user process with xtensa-linux-gdb (as opposed to xtensa-elf-gdb), which can only access unprivileged registers; - enable MTTCG for target/xtensa; - cleanup in linux-user/mmap area making sure that it works correctly with limited 30-bit-wide user address space; - import xtensa-specific definitions from the linux kernel, conditionalize user-only/softmmu-only code and add handlers for signals, exceptions, process/thread creation and core registers dumping. # gpg: Signature made Fri 16 Mar 2018 16:46:19 GMT # gpg: using RSA key 51F9CC91F83FA044 # gpg: Good signature from "Max Filippov <filippov@cadence.com>" # gpg: aka "Max Filippov <max.filippov@cogentembedded.com>" # gpg: aka "Max Filippov <jcmvbkbc@gmail.com>" # Primary key fingerprint: 2B67 854B 98E5 327D CDEB 17D8 51F9 CC91 F83F A044 * remotes/xtensa/tags/20180316-xtensa: MAINTAINERS: fix W: address for xtensa qemu-binfmt-conf.sh: add qemu-xtensa target/xtensa: add linux-user support linux-user: drop unused target_msync function linux-user: fix target_mprotect/target_munmap error return values linux-user: fix assertion in shmdt linux-user: fix mmap/munmap/mprotect/mremap/shmat target/xtensa: support MTTCG target/xtensa: use correct number of registers in gdbstub target/xtensa: mark register windows in the dump target/xtensa: dump correct physical registers Signed-off-by: Peter Maydell <peter.maydell@linaro.org> # Conflicts: # linux-user/syscall.c
2018-03-16target/xtensa: add linux-user supportMax Filippov1-3/+62
Import list of syscalls from the kernel source. Conditionalize code/data that is only used with softmmu. Implement exception handlers. Implement signal hander (only the core registers for now, no coprocessors or TIE). Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-03-09linux-user: Support f_flags in statfs when available.Shea Levy1-22/+19
Signed-off-by: Shea Levy <shea@shealevy.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180301111500.15717-1-shea@shealevy.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-03-09linux-user: Drop unicore32 codePeter Maydell1-3/+3
We dropped the unicore32-linux-user target in commit 5e2b40f7271cf9 in 2016. Nobody has made any attempt to fix the issues that caused us to drop it, so remove the associated code. (The system emulation parts of unicore32 remain.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180308144733.25615-2-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-03-07RISC-V Linux User EmulationMichael Clark1-5/+8
Implementation of linux user emulation for RISC-V. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-01-23linux-user: Don't use CMSG_ALIGN(sizeof struct cmsghdr)Peter Maydell1-3/+3
The Linux struct cmsghdr is already guaranteed to be sufficiently aligned that CMSG_ALIGN(sizeof struct cmsghdr) is always equal to sizeof struct cmsghdr. Stop doing the unnecessary alignment arithmetic for host and target cmsghdr. This follows kernel commit 1ff8cebf49ed9e9ca2 and brings our TARGET_CMSG_* macros back into line with the kernel ones, as well as making them easier to understand. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1513345976-22958-3-git-send-email-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-11-07linux-user: Handle TARGET_MAP_STACK and TARGET_MAP_HUGETLBHelge Deller1-0/+10
Add the missing defines and for TARGET_MAP_STACK and TARGET_MAP_HUGETLB for alpha, mips, ppc, x86, hppa. Fix the mmap_flags translation table to translate MAP_HUGETLB between host and target architecture, and to drop MAP_STACK. Signed-off-by: Helge Deller <deller@gmx.de> Message-Id: <20170311183016.GA20514@ls3530.fritz.box> [rth: Drop MAP_STACK instead of translating it, since it is ignored in the kernel anyway. Fix tabs to spaces.] Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07linux-user/hppa: Fix TARGET_F_RDLCK, TARGET_F_WRLCK, TARGET_F_UNLCKHelge Deller1-0/+3
Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-ID: <20170311175019.GA7195@ls3530.fritz.box> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07linux-user/hppa: Fix TARGET_MAP_TYPEHelge Deller1-1/+5
TARGET_MAP_TYPE needs to be 0x03 instead of 0x0f on the hppa architecture, otherwise it conflicts with MAP_FIXED which is 0x04. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-ID: <20170311175019.GA7195@ls3530.fritz.box> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07linux-user/hppa: Fix TARGET_SA_* definesHelge Deller1-0/+8
Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07linux-user: Restrict usage of sa_restorerRichard Henderson1-0/+13
Reading and writing to an sa_restorer member that isn't supposed to exist corrupts user memory. Introduce TARGET_ARCH_HAS_SA_RESTORER, similar to the kernel's __ARCH_HAS_SA_RESTORER. Reported-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-10-19Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20171018' ↵Peter Maydell1-6/+37
into staging Linux-user updates for Qemu 2.11 # gpg: Signature made Wed 18 Oct 2017 13:20:14 BST # gpg: using RSA key 0xB44890DEDE3C9BC0 # gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>" # gpg: aka "Riku Voipio <riku.voipio@linaro.org>" # Primary key fingerprint: FF82 03C8 C391 98AE 0581 41EF B448 90DE DE3C 9BC0 * remotes/riku/tags/pull-linux-user-20171018: linux-user: Fix TARGET_MTIOCTOP/MTIOCGET/MTIOCPOS values linux-user/main: support dfilter linux-user: Fix target FS_IOC_GETFLAGS and FS_IOC_SETFLAGS numbers linux-user/sh4: Reduce TARGET_VIRT_ADDR_SPACE_BITS to 31 linux-user: Tidy and enforce reserved_va initialization tcg: Fix off-by-one in assert in page_set_flags linux-user: Allow -R values up to 0xffff0000 for 32-bit ARM guests linux-user: remove duplicate break in syscall target/m68k,linux-user: manage FP registers in ucontext linux-user: fix O_TMPFILE handling Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-10-17linux-user: Fix TARGET_MTIOCTOP/MTIOCGET/MTIOCPOS valuesPeter Maydell1-3/+28
The TARGET_MTIOCTOP/TARGET_MTIOCGET/TARGET_MTIOCPOS values were being defined in terms of host struct types, but these structures are such that their size might differ on different hosts. Switch to using a target struct definition instead. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-10-16linux-user: Add some random ioctlsMarco A L Barbosa1-0/+7
Signed-off-by: Marco A L Barbosa <malbarbo@gmail.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-10-16linux-user: Fix target FS_IOC_GETFLAGS and FS_IOC_SETFLAGS numbersPeter Maydell1-2/+2
We were defining TARGET_FS_IOC_GETFLAGS and TARGET_FS_IOC_SETFLAGS using the host 'long' type in the size field, which meant that they had the wrong values if the host and guest had different sized longs. Switch to abi_long instead. This fixes a bug where these ioctls don't work on 32-bit guests on 64-bit hosts (and makes the LTP test 'setxattr03' pass where it did not previously.) Reported-by: pgndev <pgnet.dev@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-10-16linux-user: fix O_TMPFILE handlingRiku Voipio1-1/+7
Since O_TMPFILE might differ between guest and host, add it to the bitmask_transtbl. While at it, fix the definitions of O_DIRECTORY etc which should arm32 according to kernel sources. This fixes open14 and openat03 ltp testcases. Fixes: https://bugs.launchpad.net/qemu/+bug/1709170
2017-02-27linux-user: Add sockopts for IPv6 ping and IPv6 tracerouteHelge Deller1-0/+8
Add the neccessary sockopts for ping and traceroute on IPv6. This fixes the following qemu warnings with IPv6: Unsupported ancillary data: 0/2 Unsupported ancillary data: 0/11 Unsupported ancillary data: 41/25 Unsupported setsockopt level=0 optname=12 Unsupported setsockopt level=41 optname=16 Unsupported setsockopt level=41 optname=25 Unsupported setsockopt level=41 optname=50 Unsupported setsockopt level=41 optname=51 Unsupported setsockopt level=41 optname=8 Unsupported setsockopt level=58 optname=1 Tested with hppa-linux-user (big-endian) on x86_64 (little-endian). Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20170218223130.GA25278@ls3530.fritz.box> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-02-16linux-user: Add FICLONE and FICLONERANGE ioctlsHelge Deller1-0/+4
Add missing FICLONE and FICLONERANGE ioctls. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20170211222602.GA6399@ls3530.fritz.box> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2017-01-24nios2: Add usermode binaries emulationMarek Vasut1-3/+5
Add missing bits for qemu-user required for emulating Altera Nios2 userspace binaries. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chris Wulff <crwulff@gmail.com> Cc: Jeff Da Silva <jdasilva@altera.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Sandra Loosemore <sandra@codesourcery.com> Cc: Yves Vandervennet <yvanderv@altera.com> Reviewed-by: Alexander Graf <agraf@suse.de> Message-Id: <20170118220146.489-4-marex@denx.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA definitions to syscall_defs.hRichard Henderson1-1/+130
2017-01-23linux-user: Add some hppa ioctlsHelge Deller1-0/+15
Add F_GETLK, F_SETLK, F_SETLKW, F_GETOWN, F_SETOWN, F_SETSIG, F_GETSIG, F_GETLK64, F_SETLK64 and F_SETLKW64 for hppa. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-22linux-user: Add SIOCGPGRP, SIOCGSTAMP, SIOCGSTAMPNSHelge Deller1-0/+4
Mirror syscall_defs.h for the element type of struct timeval and struct timespec, even though that's not 100% accurate for each guest. Signed-off-by: Helge Deller <deller@gmx.de> [rth: Changed the MK_ARRAY types as per above; added ioctl.h entries.] Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-22Revert "Remove remainders of HPPA backend"Richard Henderson1-2/+2
This reverts commit d41f3c3cc7a5fb9de144cc4022da14a9ff010671. Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-10-21linux-user: Fix definition of target_sigevent for 32-bit guestsPeter Maydell1-6/+10
The sigevent structure includes a union with some fields which are pointers. For the QEMU target_sigevent structure we must represent these as abi_ulongs, not host function pointers. This error was causing the compiler to believe it should 8-align the _sigev_un union on a 64-bit host, which meant that the code in target_to_host_sigevent() was looking at the wrong offset to find the _tid field, and timer_create() would spuriously fail with EINVAL. This fixes the final loose end noted in LP:1042388. While we're editing the structure, switch the 'int32_t' fields to 'abi_int'; this will only matter for guests with non-standard integer alignment like m68k. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21linux-user: Fix syslog() syscall supportAleksandar Markovic1-0/+25
There are currently several problems related to syslog() support. For example, if the second argument "bufp" of target syslog() syscall is NULL, the current implementation always returns error code EFAULT. However, NULL is a perfectly valid value for the second argument for many use cases of this syscall. This is, for example, visible from this excerpt of man page for syslog(2): > EINVAL Bad arguments (e.g., bad type; or for type 2, 3, or 4, buf is > NULL, or len is less than zero; or for type 8, the level is > outside the range 1 to 8). Moreover, the argument "bufp" is ignored for all cases of values of the first argument, except 2, 3 and 4. This means that for such cases (the first argument is not 2, 3 or 4), there is no need to pass "buf" between host and target, and it can be set to NULL while calling host's syslog(), without loss of emulation accuracy. Note also that if "bufp" is NULL and the first argument is 2, 3 or 4, the correct returned error code is EINVAL, not EFAULT. All these details are reflected in this patch. "#ifdef TARGET_NR_syslog" is also proprerly inserted when needed. Support for Qemu's "-strace" switch for syslog() syscall is included too. LTP tests syslog11 and syslog12 pass with this patch (while fail without it), on any platform. Changes to original patch by Riku Voipio: fixed error paths in TARGET_SYSLOG_ACTION_READ_ALL to match http://lxr.free-electrons.com/source/kernel/printk/printk.c?v=4.7#L1335 Should fix also the build error in: https://lists.gnu.org/archive/html/qemu-devel/2016-10/msg03721.html Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21linux-user: Fix socketcall() syscall supportAleksandar Markovic1-20/+22
Since not all Linux host platforms support socketcall() (most notably Intel), do_socketcall() function in Qemu's syscalls.c is implemented to mirror the corespondant implementation of socketcall() in Linux kernel, and to utilise individual socket operations that are supported on all Linux platforms. (see kernel source file net/socket.c, definition of socketcall). However, error codes produced by Qemu implementation are wrong for the cases of invalid values of the first argument. Also, naming of constants is not consistent with kernel one, and not consistant with Qemu convention of prefixing such constants with "TARGET_". This patch in that light brings do_socketcall() closer to its kernel counterpart, and in that way fixes the errors and yields more consisrtent Qemu code. There were also three missing cases (among 20) for strace support for socketcall(). The array that contains pointers for appropriate printing functions is updated with 3 elements, however pointers to functions are left NULL, and its implementation is left for future. Also, this patch fixes failure of LTP test socketcall02, if executed on some Qemu emulated sywstems (uer mode). Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21linux-user: Add support for adjtimex() syscallAleksandar Markovic1-0/+28
This patch implements Qemu user mode adjtimex() syscall support. Syscall adjtimex() reads and optionally sets parameters for a clock adjustment algorithm used in network synchonization or similar scenarios. Its declaration is: int adjtimex(struct timex *buf); The correspondent source code in the Linux kernel is at kernel/time.c, line 206. The Qemu implementation is based on invocation of host's adjtimex(), and its key part is in the "TARGET_NR_adjtimex" case segment of the the main switch statement of the function do_syscall(), in linux-user/syscalls.c. All necessary conversions of the data structures from target to host and from host to target are covered. Two new functions, target_to_host_timex() and host_to_target_timex(), are provided for the purpose of such conversions. For that purpose, the support for related structure "timex" had tp be added to the file linux-user/syscall_defs.h, based on its definition in Linux kernel. Also, the relevant support for "-strace" Qemu option is included in files linux-user/strace.c and linux-user/strace.list. This patch also fixes failures of LTP tests adjtimex01 and adjtimex02, if executed in Qemu user mode. Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-09-23linux-user: Fix structure target_flock definition for MipsAleksandar Markovic1-0/+6
Structure flock is defined for Mips in a way different from any other platform. For reference, see Linux kernel source code files: arch/mips/include/uapi/asm/fcntl.h, line 63 (for Mips) include/uapi/asm-generic/fcntl.h, line 195 (for all other platforms) This patch fix this problem, by amending structure target_flock, for Mips only. Besides, this patch fixes LTP tests fcntl11, fcntl17, fcntl19, fcntl20, and fcntl21, which are currently failing, if executed in Qemu user mode for Mips platforms. Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-09-23linux-user: Fix TARGET_F_GETOWN definition for MipsAleksandar Markovic1-1/+1
For some reason, Qemu's TARGET_F_GETOWN constant for Mips does not match the correct value of correspondent F_GETOWN. This patch fixes this problem. For reference, see Mips' F_GETOWN definition in Linux kernel at arch/mips/include/uapi/asm/fcntl.h#L44. This patch also fixes some fcntl()-related LTP tests for Qemu user mode for Mips. Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-09-23linux-user: Fix TARGET_SIOCATMARK definition for MipsAleksandar Markovic1-0/+4
This patch fixes wrong definition of TARGET_SIOCATMARK for mips, alpha, and sh4. The current definition is: #define SIOCATMARK 0x8905 while the correct definition is: #define SIOCATMARK TARGET_IOR('s', 7, int) See Linux kernel source file arch/mips/include/uapi/asm/sockios.h#L19 for reference. This patch also a fixes LTP test failure for test sockioctl01, for mips, alpha, and sh4. Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com> Acked-by: Riku Voipio <riku.voipio@linaro.org> Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
2016-09-21linux-user: Check for bad event numbers in epoll_waitPeter Maydell1-0/+3
The kernel checks that the maxevents parameter to epoll_wait is non-negative and not larger than EP_MAX_EVENTS. Add this check to our implementation, so that: * we fail these cases EINVAL rather than EFAULT * we don't pass negative or overflowing values to the lock_user() size calculation Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-09-21linux-user: Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctlsPeter Maydell1-0/+6
Implement the FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls, as used by chattr. Note that the type information encoded in these ioctl numbers is at odds with the actual type the kernel accesses, as discussed in http://thread.gmane.org/gmane.linux.file-systems/80164. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-09-15Remove remainders of HPPA backendThomas Huth1-2/+2
The HPPA backend has been removed by the following commit: 802b5081233a6b643a8b135a5facaf14bafaa77d tcg-hppa: Remove tcg backend But some small pieces of the HPPA backend still survived until today. Since we also do not have support for a HPPA target in QEMU, we can nowadays safely remove the remaining HPPA parts (like the disassembler code, or the detection of HPPA in the configure script). Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-07-19linux-user: Add some new blk ioctlsPeter Maydell1-0/+11
Add some new blk ioctls (these are 0x12,119 through to 0x12,127). Several of these are used by mke2fs; this silences the warnings: mke2fs 1.42.12 (29-Aug-2014) Unsupported ioctl: cmd=0x127b Unsupported ioctl: cmd=0x127a warning: Unable to get device geometry for /dev/loop5 Unsupported ioctl: cmd=0x127c Unsupported ioctl: cmd=0x127c Unsupported ioctl: cmd=0x1277 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-07-19linux-user: Add loop control ioctlsPeter Maydell1-0/+4
Add support for the /dev/loop-control ioctls: LOOP_CTL_ADD LOOP_CTL_REMOVE LOOP_CTL_GET_FREE [RV: fixed to apply to new header guards] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-07-12linux-user: Fix broken header guard in syscall_defs.hMarkus Armbruster1-4/+3
Found with scripts/clean-header-guards.pl. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-06-26linux-user: add socketcall() straceLaurent Vivier1-4/+18
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-26linux-user: Support F_GETPIPE_SZ and F_SETPIPE_SZ fcntlsPeter Maydell1-0/+2
Support the F_GETPIPE_SZ and F_SETPIPE_SZ fcntl operations. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-06-08linux-user: Correct signedness of target_flock l_start and l_len fieldsPeter Maydell1-17/+17
The l_start and l_len fields in the various target_flock structures are supposed to be '__kernel_off_t' or '__kernel_loff_t', which means they should be signed, not unsigned. Correcting the structure definitions means that __get_user() and __put_user() will correctly sign extend them if the guest is using 32 bit offsets and the host is using 64 bit offsets. This fixes failures in the LTP 'fcntl14' tests where it checks that negative seek offsets work correctly. We reindent the structures to drop hard tabs since we're touching 40% of the fields anyway. RV: long long -> abi_llong as suggested by Laurent Vivier <laurent@vivier.eu> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-06-07linux-user: Use both si_code and si_signo when converting siginfo_tPeter Maydell1-0/+15
The siginfo_t struct includes a union. The correct way to identify which fields of the union are relevant is complicated, because we have to use a combination of the si_code and si_signo to figure out which of the union's members are valid. (Within the host kernel it is always possible to tell, but the kernel carefully avoids giving userspace the high 16 bits of si_code, so we don't have the information to do this the easy way...) We therefore make our best guess, bearing in mind that a guest can spoof most of the si_codes via rt_sigqueueinfo() if it likes. Once we have made our guess, we record it in the top 16 bits of the si_code, so that tswap_siginfo() later can use it. tswap_siginfo() then strips these top bits out before writing si_code to the guest (sign-extending the lower bits). This fixes a bug where fields were sometimes wrong; in particular the LTP kill10 test went into an infinite loop because its signal handler got a si_pid value of 0 rather than the pid of the sending process. As part of this change, we switch to using __put_user() in the tswap_siginfo code which writes out the byteswapped values to the target memory, in case the target memory pointer is not sufficiently aligned for the host CPU's requirements. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-05-27linux-user: x86_64: Don't use 16-bit UIDsPeter Maydell1-1/+2
The 64-bit x86 syscall ABI uses 32-bit UIDs; only define USE_UID16 for 32-bit x86. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-01-11linux-user: Add SOCKOP_sendmmsg and SOCKOP_recvmmsg socket call, wire them up.John Paul Adrian Glaubitz1-0/+2
Adds the definitions for the socket calls SOCKOP_sendmmsg and SOCKOP_recvmmsg and wires them up with the rest of the code. The necessary function do_sendrecvmmsg() is already present in linux-user/syscall.c. After adding these two definitions and wiring them up, I no longer receive an error message about the unimplemented socket calls when running "apt-get update" on Debian unstable running on qemu with glibc_2.21 on m68k. Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-01-08linux-user: correctly align target_epoll_eventLaurent Vivier1-8/+11
According to comments in /usr/include/linux/eventpoll.h, poll_event is packed only on x86_64. And to be sure fields are correctly aligned in epoll_data, use abi_XXX types for all of them. Moreover, fd type is wrong: fd is int, not ulong. This has been tested with a ppc guest on an x86_64 host: without this patch, systemd crashes (core). CC: Alexander Graf <agraf@suse.de> CC: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2015-10-07linux-user/syscall_defs.h: Sync the latest si_code from Linux kernelChen Gang1-0/+11
They content several new macro members, also contents TARGET_N*. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Message-Id: <1443240605-2924-1-git-send-email-gang.chen.5i5j@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-28linux-user: fix cmsg conversion in case of multiple headersJonathan Neuschäfer1-5/+9
Currently, __target_cmsg_nxthdr compares a pointer derived from target_cmsg against the msg_control field of target_msgh (through subtraction). This failed for me when emulating i386 code under x86_64, because pointers in the host address space and pointers in the guest address space were not the same. This patch passes the initial value of target_cmsg into __target_cmsg_nxthdr. I found and fixed two more related bugs: - __target_cmsg_nxthdr now returns the new cmsg pointer instead of the old one. - tgt_space (in host_to_target_cmsg) doesn't count "sizeof (struct target_cmsghdr)" twice anymore. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2015-09-15linux-user: Support tilegx architecture in linux-userChen Gang1-5/+9
Add main working flow feature, system call processing feature, and elf64 tilegx binary loading feature, based on Linux kernel tilegx 64-bit implementation. [rth: Moved all of the implementation of atomic instructions to a later patch.] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <BLU436-SMTP938552D42808AA60634582B9660@phx.gbl> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11typofixes - v4Veres Lajos1-2/+2
Signed-off-by: Veres Lajos <vlajos@gmail.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-19 13:34:58 +0000