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* linux-user: add QEMU_IFLA_INFO_KIND nested type for tunLaurent Vivier2018-08-201-0/+48
| | | | | | Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180820171557.7734-5-laurent@vivier.eu>
* linux-user: update netlink route typesLaurent Vivier2018-08-201-0/+19
| | | | | | | | | | | | | Add RTA_PREF and RTA_CACHEINFO. Fix following errors when we start gedit: Unknown host RTA type: 12 Unknown host RTA type: 20 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180820171557.7734-4-laurent@vivier.eu>
* linux-user: introduce QEMU_RTA_* to use with rtattr_type_tLaurent Vivier2018-08-201-11/+45
| | | | | | | | | | | | Following commit will introduce RTA_PREF that appears only with kernel v4.1. To avoid to manage a specific case for it, this patch introduces the full list of rtattr_type_t prefixed with QEMU_ (as we did for IFLA values) Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180820171557.7734-3-laurent@vivier.eu> [lv: added more RTA_* from linux v4.18]
* linux-user: fix recvmsg()/recvfrom() with netlink and MSG_TRUNCLaurent Vivier2018-08-201-2/+7
| | | | | | | | | | | | | If recvmsg()/recvfrom() are used with the MSG_TRUNC flag, they return the real length even if it was longer than the passed buffer. So when we translate the buffer we must check we don't go beyond the end of the buffer. Bug: https://github.com/vivier/qemu-m68k/issues/33 Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180820171557.7734-2-laurent@vivier.eu>
* linux-user: fix 32bit g2h()/h2g()Laurent Vivier2018-08-171-1/+1
| | | | | | | | | | | | | | | | | | | | sparc32plus has 64bit long type but only 32bit virtual address space. For instance, "apt-get upgrade" failed because of a mmap()/msync() sequence. mmap() returned 0xff252000 but msync() used g2h(0xffffffffff252000) to find the host address. The "(target_ulong)" in g2h() doesn't fix the address because it is 64bit long. This patch introduces an "abi_ptr" that is set to uint32_t if the virtual address space is addressed using 32bit in the linux-user case. It stays set to target_ulong with softmmu case. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180814171217.14680-1-laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [lv: added "%" in TARGET_ABI_FMT_ptr "%"PRIx64]
* Merge remote-tracking branch 'remotes/amarkovic/tags/mips-queue-aug-2018' ↵Peter Maydell2018-08-161-0/+29
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into staging MIPS queue Aug 16, 2018 # gpg: Signature made Thu 16 Aug 2018 18:19:36 BST # gpg: using RSA key D4972A8967F75A65 # gpg: Good signature from "Aleksandar Markovic <amarkovic@wavecomp.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 8526 FBF1 5DA3 811F 4A01 DD75 D497 2A89 67F7 5A65 * remotes/amarkovic/tags/mips-queue-aug-2018: qemu-doc: Amend MIPS-related items linux-user: Add preprocessor availability control to some syscalls linux-user: Update MIPS syscall numbers up to kernel 4.18 headers elf: Add ELF flags for MIPS machine variants elf: Remove duplicate preprocessor constant definition target/mips: Check ELPA flag only in some cases of MFHC0 and MTHC0 target/mips: Don't update BadVAddr register in Debug Mode target/mips: Implement CP0 Config1.WR bit functionality target/mips: Add CP0 BadInstrX register target/mips: Update some CP0 registers bit definitions target/mips: Fix two instances of shadow variables target/mips: Mark switch fallthroughs with interpretable comments target/mips: Avoid case statements formulated by ranges - part 2 target/mips: Avoid case statements formulated by ranges - part 1 MAINTAINERS: Update target/mips maintainer's email addresses Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * linux-user: Add preprocessor availability control to some syscallsAleksandar Rikalo2018-08-161-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add ability to target platforms to individually include user-mode support for system calls from "stat" group of system calls. This change is related to new nanoMIPS platform in the sense that it supports a different set of "stat" system calls than any other target. nanoMIPS does not support structures stat and stat64 at all. Also, support for certain number of other system calls is dropped in nanoMIPS (those are most of the time obsoleted system calls). Without this patch, build for nanoMIPS would fail. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
* | target/arm: Add sve-max-vq cpu property to -cpu maxRichard Henderson2018-08-161-6/+13
|/ | | | | | | | | | | | | This allows the default (and maximum) vector length to be set from the command-line. Which is extraordinarily helpful in debugging problems depending on vector length without having to bake knowledge of PR_SET_SVE_VL into every guest binary. Cc: qemu-stable@nongnu.org (3.0.1) 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> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* linux-user/ppc: Implement swapcontext syscallRichard Henderson2018-07-221-0/+6
| | | | | | | | | | | | | | | | This allows the tests generated by debian-powerpc-user-cross to function properly, especially tests/test-coroutine. Technically this syscall is available to both ppc32 and ppc64, but only ppc32 glibc actually uses it. Thus the ppc64 path is untested. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180718200648.22529-1-richard.henderson@linaro.org>
* Zero out the host's `msg_control` bufferJonas Schievink2018-07-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | If this is not done, qemu would drop any control message after the first one. This is because glibc's `CMSG_NXTHDR` macro accesses the uninitialized cmsghdr's length field in order to find out if the message fits into the `msg_control` buffer, wrongly assuming that it doesn't because the length field contains garbage. Accessing the length field is fine for completed messages we receive from the kernel, but is - as far as I know - not needed since the kernel won't return such an invalid cmsghdr in the first place. This is tracked as this glibc bug: https://sourceware.org/bugzilla/show_bug.cgi?id=13500 It's probably also a good idea to bail with an error if `CMSG_NXTHDR` returns NULL but `TARGET_CMSG_NXTHDR` doesn't (ie. we still expect cmsgs). Signed-off-by: Jonas Schievink <jonasschievink@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180711221244.31869-1-jonasschievink@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: convert remaining fcntl() to safe_fcntl()Laurent Vivier2018-07-151-1/+1
| | | | | | | | | | Commit 435da5e709 didn't convert a fcntl() call to safe_fcntl() for TARGET_NR_fcntl64 case. There is no reason to not use it in this case. Fixes: 435da5e709 linux-user: Use safe_syscall wrapper for fcntl Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180713125805.10749-1-laurent@vivier.eu>
* linux-user: ppc64: use the correct values for F_*LK64sShivaprasad G Bhat2018-07-151-46/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Qemu includes the glibc headers for the host defines and target headers are part of the qemu source themselves. The glibc has the F_GETLK64, F_SETLK64 and F_SETLKW64 defined to 12, 13 and 14 for all archs in sysdeps/unix/sysv/linux/bits/fcntl-linux.h. The linux kernel generic definition for F_*LK is 5, 6 & 7 and F_*LK64* is 12,13, and 14 as seen in include/uapi/asm-generic/fcntl.h. On 64bit machine, by default the kernel assumes all F_*LK to 64bit calls and doesnt support use of F_*LK64* as can be seen in include/linux/fcntl.h in linux source. On x86_64 host, the values for F_*LK64* are set to 5, 6 and 7 explicitly in /usr/include/x86_64-linux-gnu/bits/fcntl.h by the glibc. Whereas, a PPC64 host doesn't have such a definition in /usr/include/powerpc64le-linux-gnu/bits/fcntl.h by the glibc. So, the sources on PPC64 host sees the default value of F_*LK64* as 12, 13 & 14(fcntl-linux.h). Since the 64bit kernel doesnt support 12, 13 & 14; the glibc fcntl syscall implementation(__libc_fcntl*(), __fcntl64_nocancel) does the F_*LK64* value convertion back to F_*LK* values on PPC64 as seen in sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h with FCNTL_ADJUST_CMD() macro. Whereas on x86_64 host the values for F_*LK64* are set to 5, 6 and 7 and no adjustments are needed. Since qemu doesnt use the glibc fcntl, but makes the safe_syscall* on its own, the PPC64 qemu is calling the syscall with 12, 13, and 14(without adjustment) and they all fail. The fcntl calls to F_GETLK/F_SETLK|W all fail by all pplications run on PPC64 host user emulation. The fix here could be to see why on PPC64 the glibc is still keeping F_*LK64* different from F_*LK and why adjusting them to 5, 6 and 7 before the syscall for PPC only. See if we can make the /usr/include/powerpc64le-linux-gnu/bits/fcntl.h to have the values 5, 6 & 7 just like x86_64 and remove the adjustment code in glibc. That way, qemu sources see the kernel supported values in glibc headers. OR On PPC64 host, qemu sources see both F_*LK & F_*LK64* as same and set to 12, 13 and 14 because __USE_FILE_OFFSET64 is defined in qemu sources(also refer sysdeps/unix/sysv/linux/bits/fcntl-linux.h). Do the value adjustment just like it is done by glibc source by using F_GETLK value of 5. That way, we make the syscalls with the actual supported values in Qemu. The patch is taking this approach. Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <153148521235.87746.14142430397318741182.stgit@lep8c.aus.stglabs.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Do not report "Unsupported syscall" by defaultPhilippe Mathieu-Daudé2018-07-091-1/+1
| | | | | | | | | | | | This can still be reported using the "-d unimp" command line option. Fixes: https://bugs.launchpad.net/qemu/+bug/1777226 Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180706155127.7483-2-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: introduce preexit_cleanupAlex Bennée2018-07-051-8/+2Star
| | | | | | | | | | | To avoid repeating ourselves move our preexit clean-up code into a helper function. I figured the continuing effort to split of the syscalls made it worthwhile creating a new file for it now. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: update do_setsockopt()Laurent Vivier2018-07-021-0/+2
| | | | | | | | | add IPV6_MULTICAST_HOPS and IPV6_MULTICAST_LOOP that need 32bit value conversion Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180627212152.26525-3-laurent@vivier.eu>
* linux-user: add netlink CARRIER_UP_COUNT/CARRIER_DOWN_COUNTLaurent Vivier2018-07-021-0/+2
| | | | | | | | | | | | | | | | | | | | | | Error is reported with libuv test suite: not ok 311 - udp_multicast_interface6 # exit code 134 # Output from process `udp_multicast_interface6`: # Unknown host QEMU_IFLA type: 47 # Unknown host QEMU_IFLA type: 48 # Unknown host QEMU_IFLA type: 47 # Unknown host QEMU_IFLA type: 48 # Unknown host QEMU_IFLA type: 47 # Unknown host QEMU_IFLA type: 48 # Unknown host QEMU_IFLA type: 47 # Unknown host QEMU_IFLA type: 48 # Unknown host QEMU_IFLA type: 47 # Unknown host QEMU_IFLA type: 48 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180627212152.26525-2-laurent@vivier.eu>
* linux-user: Export use is_error(), use it to avoid warningsPhilippe Mathieu-Daudé2018-06-111-5/+0Star
| | | | | | | | | | | | | | This fixes: linux-user/flatload.c:740:9: warning: Loss of sign in implicit conversion if (res > (unsigned long)-4096) ^~~ Reported-by: Clang Static Analyzer Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180604153722.24956-2-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* syscall: replace strcpy() by g_strlcpy()Philippe Mathieu-Daudé2018-06-041-1/+2
| | | | | | | | | | | | linux-user/syscall.c:9860:17: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy (buf->machine, cpu_to_uname_machine(cpu_env)); ^~~~~~ Reported-by: Clang Static Analyzer Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20170724182751.18261-32-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Fix payload size logic in host_to_target_cmsg()Peter Maydell2018-05-251-1/+2
| | | | | | | | | | | | | | | | | | | | Coverity points out that there's a missing break in the switch in host_to_target_cmsg() where we update tgt_len for cmsg_level/cmsg_type combinations which require a different length for host and target (CID 1385425). To avoid duplicating the default case (target length same as host) in both switches, set that before the switch so that only the cases which want to override it need any code. This fixes a bug where we would have used the wrong length for SOL_SOCKET/SO_TIMESTAMP messages where the target and host have differently sized 'struct timeval' (ie one is 32 bit and the other is 64 bit). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180518184715.29833-1-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: update netlink emulationLaurent Vivier2018-05-251-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | | Update enums with entries from linux 4.17 Translate entries that generate logs with iproute2 4.9.0 and host kernel 4.15: # ip address show Unknown host QEMU_IFLA type: 43 Unknown host QEMU_IFLA type: 43 Unknown host QEMU_IFLA type: 43 Unknown QEMU_IFLA_BR type 41 Unknown QEMU_IFLA_BR type 42 Unknown QEMU_IFLA_BR type 43 Unknown QEMU_IFLA_BR type 44 Unknown host QEMU_IFLA type: 43 Unknown QEMU_IFLA_BR type 41 Unknown QEMU_IFLA_BR type 42 Unknown QEMU_IFLA_BR type 43 Unknown QEMU_IFLA_BR type 44 Unknown host QEMU_IFLA type: 43 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180516221213.11111-1-laurent@vivier.eu>
* linux-user: fix conversion of flock/flock64 l_type fieldLaurent Vivier2018-05-111-18/+48
| | | | | | | | | | | | | As l_type values (F_RDLCK, F_WRLCK, F_UNLCK, F_EXLCK, F_SHLCK) are not bitmasks, we can't use target_to_host_bitmask() and host_to_target_bitmask() to convert them. Introduce target_to_host_flock() and host_to_target_flock() to convert values between host and target. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Message-Id: <20180509231123.20864-5-laurent@vivier.eu>
* linux-user: remove useless padding in flock64 structureLaurent Vivier2018-05-031-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* linux-user: Fix getdents emulation for 64 bit guest on 32 bit hostPeter Maydell2018-04-301-3/+15
| | | | | | | | | | | | | | | | | | | | | Currently we mishandle emulation of the getdents syscall for the case of a 64 bit guest on a 32 bit host -- it defaults into the 'host and guest same size' codepath and generates incorrect structures in the guest buffer. We can't easily handle the 64-on-32 case using the host getdents syscall, because the guest struct dirent is bigger than the host struct dirent, and we might find the host syscall has handed us back more records than we can fit in the guest buffer after conversion. Instead, always emulate 64-on-32 getdents with the host getdents64. This avoids the buffer-overrun problem because a dirent64 struct is always the same size on any host and always larger than any architecture's dirent struct. Reported-by: Henry Wertz <hwertz10@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180419125740.2695-1-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Merge remote-tracking branch 'remotes/xtensa/tags/20180409-xtensa' into stagingPeter Maydell2018-04-101-2/+25
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix file offset for preadv/pwritev linux-user syscalls. # gpg: Signature made Tue 10 Apr 2018 03:04:24 BST # 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/20180409-xtensa: linux-user: fix preadv/pwritev offsets Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * linux-user: fix preadv/pwritev offsetsMax Filippov2018-04-101-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | preadv/pwritev accept low and high parts of file offset in two separate parameters. When host bitness doesn't match guest bitness these parts must be appropriately recombined. Introduce target_to_host_low_high that does this recombination and use it in preadv/pwritev syscalls. This fixes glibc testsuite test misc/tst-preadvwritev64. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | Merge remote-tracking branch ↵Peter Maydell2018-04-041-2/+5
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/vivier2/tags/linux-user-for-2.12-pull-request' into staging # gpg: Signature made Tue 03 Apr 2018 11:33:31 BST # gpg: using RSA key F30C38BD3F2FBE3C # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" # gpg: aka "Laurent Vivier <laurent@vivier.eu>" # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/linux-user-for-2.12-pull-request: linux-user: fix TARGET___O_TMPFILE for sparc linux-user: define TARGET_ARCH_HAS_KA_RESTORER linux-user: fix alpha signal emulation Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * linux-user: define TARGET_ARCH_HAS_KA_RESTORERLaurent Vivier2018-04-031-2/+5
| | | | | | | | | | | | | | | | | | | | | | 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>
* | target/xtensa: linux-user: fix fadvise64 callMax Filippov2018-04-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | fadvise64_64 on xtensa passes advice as the second argument and so must be handled similar to PPC. This fixes glibc testsuite tests posix/tst-posix_fadvise and posix/tst-posix_fadvise64. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | linux-user: implement clock_settimeMax Filippov2018-04-011-0/+12
| | | | | | | | | | | | This fixes glibc testsuite test rt/tst-clock2. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | linux-user: fix error propagation in clock_gettimeMax Filippov2018-04-011-1/+1
| | | | | | | | | | | | | | | | | | | | host_to_target_timespec may return error if target address could not be locked, but it is ignored. Propagate return value of host_to_target_timespec to the caller of clock_gettime. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | linux-user: fix mq_getsetattr implementationMax Filippov2018-03-311-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mq_getsetattr implementation does not set errno correctly in case of error. Also in the presence of both 2nd and 3rd arguments it calls both mq_getattr and mq_setattr, whereas only the latter call would suffice. Don't call mq_getattr in the presence of the 2nd argument. Don't copy output back to user in case of error. Use get_errno to set errno value. This fixes test rt/tst-mqueue2 from the glibc testsuite. Cc: Lionel Landwerlin <lionel.landwerlin@openwide.fr> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | linux-user: call cpu_copy under clone_lockMax Filippov2018-03-311-3/+4
|/ | | | | | | | | | | | | | | | | | cpu_copy adds newly created CPU object to container/machine/unattached, but does it w/o proper locking. As a result when multiple threads create threads rapidly QEMU may abort with the following message: GLib-CRITICAL **: g_hash_table_iter_next: assertion 'ri->version == ri->hash_table->version' failed ERROR:qemu/qom/object.c:1663:object_get_canonical_path_component: code should not be reached E.g. this issue is observed when running glibc test nptl/tst-eintr1. Move cpu_copy invocation under clone_lock to fix that. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* Merge remote-tracking branch 'remotes/xtensa/tags/20180316-xtensa' into stagingPeter Maydell2018-03-171-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * target/xtensa: add linux-user supportMax Filippov2018-03-161-0/+2
| | | | | | | | | | | | | | | | | | | | 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>
| * linux-user: fix assertion in shmdtMax Filippov2018-03-131-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | shmdt fails to call mmap_lock/mmap_unlock around page_set_flags, resulting in the following assertion: page_set_flags: Assertion `have_mmap_lock()' failed. Wrap shmdt internals into mmap_lock/mmap_unlock. Cc: qemu-stable@nongnu.org Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
| * linux-user: fix mmap/munmap/mprotect/mremap/shmatMax Filippov2018-03-131-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In linux-user QEMU that runs for a target with TARGET_ABI_BITS bigger than L1_MAP_ADDR_SPACE_BITS an assertion in page_set_flags fires when mmap, munmap, mprotect, mremap or shmat is called for an address outside the guest address space. mmap and mprotect should return ENOMEM in such case. Change definition of GUEST_ADDR_MAX to always be the last valid guest address. Account for this change in open_self_maps. Add macro guest_addr_valid that verifies if the guest address is valid. Add function guest_range_valid that verifies if address range is within guest address space and does not wrap around. Use that macro in mmap/munmap/mprotect/mremap/shmat for error checking. Cc: qemu-stable@nongnu.org Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | Merge remote-tracking branch ↵Peter Maydell2018-03-151-2/+16
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'remotes/vivier2/tags/linux-user-for-2.12-pull-request' into staging # gpg: Signature made Tue 13 Mar 2018 17:33:03 GMT # gpg: using RSA key F30C38BD3F2FBE3C # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" # gpg: aka "Laurent Vivier <laurent@vivier.eu>" # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/linux-user-for-2.12-pull-request: linux-user: init_guest_space: Add a comment about search strategy linux-user: init_guest_space: Don't try to align if we'll reject it linux-user: init_guest_space: Clean up control flow a bit linux-user: init_guest_commpage: Add a comment about size check linux-user: init_guest_space: Clarify page alignment logic linux-user: init_guest_space: Correctly handle guest_start in commpage initialization linux-user: init_guest_space: Clean up if we can't initialize the commpage linux-user: Rename validate_guest_space => init_guest_commpage linux-user: Use #if to only call validate_guest_space for 32-bit ARM target qemu-binfmt-conf.sh: add qemu-xtensa 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 linux-user: Support f_flags in statfs when available. linux-user: allows to use "--systemd ALL" with qemu-binfmt-conf.sh linux-user: Remove the unused "not implemented" signal handling stubs linux-user: Drop unicore32 code Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * linux-user: fix assertion in shmdtMax Filippov2018-03-091-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | shmdt fails to call mmap_lock/mmap_unlock around page_set_flags, resulting in the following assertion: page_set_flags: Assertion `have_mmap_lock()' failed. Wrap shmdt internals into mmap_lock/mmap_unlock. Cc: qemu-stable@nongnu.org Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180228221609.11265-7-jcmvbkbc@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * linux-user: fix mmap/munmap/mprotect/mremap/shmatMax Filippov2018-03-091-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In linux-user QEMU that runs for a target with TARGET_ABI_BITS bigger than L1_MAP_ADDR_SPACE_BITS an assertion in page_set_flags fires when mmap, munmap, mprotect, mremap or shmat is called for an address outside the guest address space. mmap and mprotect should return ENOMEM in such case. Change definition of GUEST_ADDR_MAX to always be the last valid guest address. Account for this change in open_self_maps. Add macro guest_addr_valid that verifies if the guest address is valid. Add function guest_range_valid that verifies if address range is within guest address space and does not wrap around. Use that macro in mmap/munmap/mprotect/mremap/shmat for error checking. Cc: qemu-stable@nongnu.org Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180307215010.30706-1-jcmvbkbc@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
| * linux-user: Support f_flags in statfs when available.Shea Levy2018-03-091-0/+5
| | | | | | | | | | | | | | 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>
* | linux-user: Implement aarch64 PR_SVE_SET/GET_VLRichard Henderson2018-03-091-0/+27
|/ | | | | | | | | | | As an implementation choice, widening VL has zeroed the previously inaccessible portion of the sve registers. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180303143823.27055-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* RISC-V Linux User EmulationMichael Clark2018-03-061-0/+2
| | | | | | | | 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>
* linux-user: Fix sched_getaffinity mask sizeSamuel Thibault2018-02-181-1/+3
| | | | | | | | | | | We properly computed the capped mask size to be put to the application buffer, but didn't actually used it. Also, we need to return the capped mask size instead of 0 on success. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180211174704.27441-1-samuel.thibault@ens-lyon.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Implement ioctl cmd TIOCGPTPEERAndreas Schwab2018-02-181-0/+9
| | | | | | | | | With glibc 2.27 the openpty function prefers the TIOCGPTPEER ioctl. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmbmhdosb9.fsf_-_@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Clean up includesMarkus Armbruster2018-02-091-1/+0Star
| | | | | | | | | | | | | | | Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes, with the change to target/s390x/gen-features.c manually reverted, and blank lines around deletions collapsed. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-3-armbru@redhat.com>
* Drop remaining bits of ia64 host supportPeter Maydell2018-02-051-6/+1Star
| | | | | | | | | | | | | | | We dropped support for ia64 host CPUs in the 2.11 release (removing the TCG backend for it, and advertising the support as being completely removed in the changelog). However there are a few bits and pieces of code still floating about. Remove those, too. We can drop the check in configure for "ia64 or hppa host?" entirely, because we don't support hppa hosts either any more. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <1516897189-11035-1-git-send-email-peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: implement renameat2Andreas Schwab2018-01-231-0/+34
| | | | | | | | | | This is needed for new architectures like RISC-V which do not provide any other rename-like syscall. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvm607su9qs.fsf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Add getcpu() supportSamuel Thibault2018-01-231-0/+19
| | | | | | | Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180112081435.21299-1-samuel.thibault@ens-lyon.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Fix sched_get/setaffinity conversionSamuel Thibault2018-01-231-8/+73
| | | | | | | | | | | | | | sched_get/setaffinity linux-user syscalls were missing conversions for little/big endian, which is hairy since longs may not be the same size either. For simplicity, this just introduces loops to convert bit by bit like is done for select. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180109201643.1479-1-samuel.thibault@ens-lyon.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Translate flags argument to dup3 syscallPeter Maydell2018-01-231-1/+9
| | | | | | | | | | | | | | | The third argument to dup3() is a flags word which may be O_CLOEXEC. We weren't translating this flag from target to host value, which meant that if the target used a different value from the host (eg sparc guest and x86 host) the dup3() call would fail EINVAL. Do the correct translation. Fixes: https://bugs.launchpad.net/qemu/+bug/1704658 Reported-by: Bruno Haible <bruno@clisp.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1513351080-25917-1-git-send-email-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2026-04-30 20:33:05 +0200