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2019-03-22trace-events: Fix attribution of trace points to sourceMarkus Armbruster1-0/+1
Some trace points are attributed to the wrong source file. Happens when we neglect to update trace-events for code motion, or add events in the wrong place, or misspell the file name. Clean up with help of cleanup-trace-events.pl. Same funnies as in the previous commit, of course. Manually shorten its change to linux-user/trace-events to */signal.c. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-id: 20190314180929.27722-6-armbru@redhat.com Message-Id: <20190314180929.27722-6-armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-22trace-events: Shorten file names in commentsMarkus Armbruster1-1/+1
We spell out sub/dir/ in sub/dir/trace-events' comments pointing to source files. That's because when trace-events got split up, the comments were moved verbatim. Delete the sub/dir/ part from these comments. Gets rid of several misspellings. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20190314180929.27722-3-armbru@redhat.com Message-Id: <20190314180929.27722-3-armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2019-03-19RISC-V: linux-user support for RVE ABIKito Cheng1-1/+14
This change checks elf_flags for EF_RISCV_RVE and if present uses the RVE linux syscall ABI which uses t0 for the syscall number instead of a7. Warn and exit if a non-RVE ABI binary is run on a cpu with the RVE extension as it is incompatible. Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Cc: Alistair Francis <Alistair.Francis@wdc.com> Co-authored-by: Kito Cheng <kito.cheng@gmail.com> Co-authored-by: Michael Clark <mjc@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-03-07linux-user: add new netlink typesLaurent Vivier1-0/+9
Add QEMU_IFLA_BR_VLAN_STATS_PER_PORT (from linux v4.20), QEMU_IFLA_BR_MULTI_BOOLOPT (from linux v5.0). The first new entry fixes the following error: Unknown QEMU_IFLA_BR type 45 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190306200925.17605-1-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: Nicer strace output of chroot() syscallHelge Deller2-1/+13
Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190227191115.GA20163@ls3530.dellerweb.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: fix "may be used uninitialized" warningsMarc-André Lureau1-2/+5
Fixes: /home/elmarco/src/qemu/linux-user/syscall.c: In function ‘do_ioctl_rt’: /home/elmarco/src/qemu/linux-user/syscall.c:4773:9: error: ‘host_rt_dev_ptr’ may be used uninitialized in this function [-Werror=maybe-uninitialized] if (*host_rt_dev_ptr != 0) { ^~~~~~~~~~~~~~~~ /home/elmarco/src/qemu/linux-user/syscall.c:4774:9: error: ‘target_rt_dev_ptr’ may be used uninitialized in this function [-Werror=maybe-uninitialized] unlock_user((void *)*host_rt_dev_ptr, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *target_rt_dev_ptr, 0); ~~~~~~~~~~~~~~~~~~~~~~ Based on previous discussion from patch "linux-users/syscall: make do_ioctl_rt safer" by Alex Bennée. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190305151500.25038-1-marcandre.lureau@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: don't short-circuit read with zero lengthAndreas Schwab1-2/+2
A zero-length read still needs to do the usual checks, thus it may return errors like EBADF. This makes the read syscall emulation consistent with the pread64 syscall emulation. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvm5zsxz2we.fsf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07Fix breakpoint support in Nios II user-mode emulation.Sandra Loosemore1-0/+6
Nios II user-mode emulation was missing handling for EXCP_DEBUG, making the gdb stub essentially useless. This patch adds the missing piece. The new code was copied from the existing EXCP_TRAP handling and is also similar to what other targets (e.g., arm) do with EXCP_DEBUG. Signed-off-by: Sandra Loosemore <sandra@codesourcery.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <1550076626-7202-1-git-send-email-sandra@codesourcery.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: fix emulation of accept4/getpeername/getsockname/recvfrom syscallsAndreas Schwab1-16/+25
System calls that return a socket address do so by writing the (possibly truncated) address into the provided buffer space, but setting the addrlen parameter to the actual size of the address. To determine how much to copy back to the target memory the emulation needs to remember the incoming value of the addrlen parameter, so that it doesn't write past the buffer limits. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmimxmppcj.fsf_-_@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: Fix ELF_PLATFORM for aarch64_be-linux-userRichard Henderson1-1/+5
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190212074840.13542-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: Add ELF_PLATFORM for armRichard Henderson1-0/+31
The 32-bit kernel has strings for v4, v5, v6, v7, v7m. The 64-bit kernel, in compat mode, has strings for v8. Fixes: https://bugs.launchpad.net/bugs/1813034 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190212074840.13542-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07linux-user: fix recvmsg emulationAndreas Schwab1-0/+1
Set msg_flags in the returned struct msghdr. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <mvmimxprmn8.fsf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-05target/arm: Implement ARMv8.4-CondMRichard Henderson1-0/+1
Tested-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190301200501.16533-8-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: fixed up block comment style] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-03-05target/arm: Implement ARMv8.0-SBRichard Henderson1-0/+1
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190301200501.16533-3-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-28linux-user: Enable HWCAP_ASIMDFHM, HWCAP_JSCVTRichard Henderson1-0/+2
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190219222952.22183-6-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-18s390x: Fix the confusing contributions-after-2012 license statementsThomas Huth1-11/+8
The license information in these files is rather confusing. The text declares LGPL first, but then says that contributions after 2012 are licensed under the GPL instead. How should the average user who just downloaded the release tarball know which part is now GPL and which is LGPL? Looking at the text of the LGPL (see COPYING.LIB in the top directory), the license clearly states how this should be done instead: "3. You may opt to apply the terms of the ordinary GNU General Public License instead of this License to a given copy of the Library. To do this, you must alter all the notices that refer to this License, so that they refer to the ordinary GNU General Public License, version 2, instead of to this License." Thus let's clean up the confusing statements and use the proper GPL text only. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1549456893-16589-1-git-send-email-thuth@redhat.com> Acked-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2019-02-15linux-user/elfload: enable HWCAP_CPUID for AArch64Alex Bennée1-0/+1
Userspace programs should (in theory) query the ELF HWCAP before probing these registers. Now we have implemented them all make it public. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190205190224.2198-6-alex.bennee@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-14target/mips: reimplement SC instruction emulation and use cmpxchgLeon Alrae1-73/+0
Completely rewrite conditional stores handling. Use cmpxchg. This eliminates need for separate implementations of SC instruction emulation for user and system emulation. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Acked-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Emilio G. Cota <cota@braap.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2019-02-11RISC-V: Use riscv prefix consistently on cpu helpersMichael Clark1-2/+2
* Add riscv prefix to raise_exception function * Add riscv prefix to CSR read/write functions * Add riscv prefix to signal handler function * Add riscv prefix to get fflags function * Remove redundant declaration of riscv_cpu_init and rename cpu_riscv_init to riscv_cpu_init * rename riscv_set_mode to riscv_cpu_set_mode Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-02-07linux-user: add new netlink typesLaurent Vivier1-0/+8
Add QEMU_IFLA_MIN_MTU, QEMU_IFLA_MAX_MTU (from linux v4.19) QEMU_IFLA_BRPORT_ISOLATED (from linux v4.18) and QEMU_IFLA_BRPORT_BACKUP_PORT (from linux v4.19). These new types fix this error flow with sudo: ... Unknown host QEMU_IFLA type: 50 Unknown host QEMU_IFLA type: 51 Unknown QEMU_IFLA_BRPORT type 33 ... Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190206193211.6683-1-laurent@vivier.eu>
2019-02-07linux-user: Check sscanf return value in open_net_route()Peter Maydell1-3/+9
Coverity warns (CID 1390634) that open_net_route() is not checking the return value from sscanf(), which means that it might then use values that aren't initialized. Errors here should in general not happen since we're passing an assumed-good /proc/net/route from the host kernel, but if we do fail to parse a line then just skip it in the output we pass to the guest. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190205174207.9278-1-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-07Fix linux-user crashes in ioctl(SIOCGIFCONF) when ifc_buf is NULL.Kan Li1-25/+31
Summary: This is to fix bug https://bugs.launchpad.net/qemu/+bug/1796754. It is valid for ifc_buf to be NULL according to http://man7.org/linux/man-pages/man7/netdevice.7.html. Signed-off-by: Kan Li <likan_999.student@sina.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20181024201303.114-1-likan_999.student@sina.com> [lv: fix errors reported by checkpatch.pl] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-02-05linux-user: Implement PR_PAC_RESET_KEYSRichard Henderson2-0/+43
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20190201195404.30486-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-01linux-user: Initialize aarch64 pac keysRichard Henderson2-2/+31
Initialize the keys to a non-zero value on process start. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-01aarch64-linux-user: Enable HWCAP bits for PAuthRichard Henderson1-0/+1
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-02-01aarch64-linux-user: Update HWCAP bits from linux 5.0-rc1Richard Henderson1-0/+9
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-30target/m68k: Fix LGPL information in the file headersThomas Huth2-3/+3
It's either "GNU *Library* General Public License version 2" or "GNU Lesser General Public License version *2.1*", but there was no "version 2.0" of the "Lesser" license. So assume that version 2.1 is meant here. Also some files mention the GPL instead of the LGPL after declaring that the files are licensed under the LGPL, so change these spots to use LGPL, too. Reviewed-by: Liam Merwick <liam.merwick@oracle.com> Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1548769438-28942-1-git-send-email-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-22linux-user: Fix compilation with clang 3.4Thomas Huth1-5/+1
Clang version 3.4.2 does not know the -Wpragmas option yet and bails out with an error when we try to disable it in linux-user/qemu.h. Fortunately, clang has a __has_warning() macro which allows us to add an explicit check for the option that we want to ignore. With that we can check for the availability of "-Waddress-of-packed-member" properly and do not need the "-Wpragmas" at all here. Fixes: 850d5e330a9c68cc998cecc02caf8a3c8d1ee8a3 Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-01-11avoid TABs in files that only contain a fewPaolo Bonzini8-28/+28
Most files that have TABs only contain a handful of them. Change them to spaces so that we don't confuse people. disas, standard-headers, linux-headers and libdecnumber are imported from other projects and probably should be exempted from the check. Outside those, after this patch the following files still contain both 8-space and TAB sequences at the beginning of the line. Many of them have a majority of TABs, or were initially committed with all tabs. bsd-user/i386/target_syscall.h bsd-user/x86_64/target_syscall.h crypto/aes.c hw/audio/fmopl.c hw/audio/fmopl.h hw/block/tc58128.c hw/display/cirrus_vga.c hw/display/xenfb.c hw/dma/etraxfs_dma.c hw/intc/sh_intc.c hw/misc/mst_fpga.c hw/net/pcnet.c hw/sh4/sh7750.c hw/timer/m48t59.c hw/timer/sh_timer.c include/crypto/aes.h include/disas/bfd.h include/hw/sh4/sh.h libdecnumber/decNumber.c linux-headers/asm-generic/unistd.h linux-headers/linux/kvm.h linux-user/alpha/target_syscall.h linux-user/arm/nwfpe/double_cpdo.c linux-user/arm/nwfpe/fpa11_cpdt.c linux-user/arm/nwfpe/fpa11_cprt.c linux-user/arm/nwfpe/fpa11.h linux-user/flat.h linux-user/flatload.c linux-user/i386/target_syscall.h linux-user/ppc/target_syscall.h linux-user/sparc/target_syscall.h linux-user/syscall.c linux-user/syscall_defs.h linux-user/x86_64/target_syscall.h slirp/cksum.c slirp/if.c slirp/ip.h slirp/ip_icmp.c slirp/ip_icmp.h slirp/ip_input.c slirp/ip_output.c slirp/mbuf.c slirp/misc.c slirp/sbuf.c slirp/socket.c slirp/socket.h slirp/tcp_input.c slirp/tcpip.h slirp/tcp_output.c slirp/tcp_subr.c slirp/tcp_timer.c slirp/tftp.c slirp/udp.c slirp/udp.h target/cris/cpu.h target/cris/mmu.c target/cris/op_helper.c target/sh4/helper.c target/sh4/op_helper.c target/sh4/translate.c tcg/sparc/tcg-target.inc.c tests/tcg/cris/check_addo.c tests/tcg/cris/check_moveq.c tests/tcg/cris/check_swap.c tests/tcg/multiarch/test-mmap.c ui/vnc-enc-hextile-template.h ui/vnc-enc-zywrle.h util/envlist.c util/readline.c The following have only TABs: bsd-user/i386/target_signal.h bsd-user/sparc64/target_signal.h bsd-user/sparc64/target_syscall.h bsd-user/sparc/target_signal.h bsd-user/sparc/target_syscall.h bsd-user/x86_64/target_signal.h crypto/desrfb.c hw/audio/intel-hda-defs.h hw/core/uboot_image.h hw/sh4/sh7750_regnames.c hw/sh4/sh7750_regs.h include/hw/cris/etraxfs_dma.h linux-user/alpha/termbits.h linux-user/arm/nwfpe/fpopcode.h linux-user/arm/nwfpe/fpsr.h linux-user/arm/syscall_nr.h linux-user/arm/target_signal.h linux-user/cris/target_signal.h linux-user/i386/target_signal.h linux-user/linux_loop.h linux-user/m68k/target_signal.h linux-user/microblaze/target_signal.h linux-user/mips64/target_signal.h linux-user/mips/target_signal.h linux-user/mips/target_syscall.h linux-user/mips/termbits.h linux-user/ppc/target_signal.h linux-user/sh4/target_signal.h linux-user/sh4/termbits.h linux-user/sparc64/target_syscall.h linux-user/sparc/target_signal.h linux-user/x86_64/target_signal.h linux-user/x86_64/termbits.h pc-bios/optionrom/optionrom.h slirp/mbuf.h slirp/misc.h slirp/sbuf.h slirp/tcp.h slirp/tcp_timer.h slirp/tcp_var.h target/i386/svm.h target/sparc/asi.h target/xtensa/core-dc232b/xtensa-modules.inc.c target/xtensa/core-dc233c/xtensa-modules.inc.c target/xtensa/core-de212/core-isa.h target/xtensa/core-de212/xtensa-modules.inc.c target/xtensa/core-fsf/xtensa-modules.inc.c target/xtensa/core-sample_controller/core-isa.h target/xtensa/core-sample_controller/xtensa-modules.inc.c target/xtensa/core-test_kc705_be/core-isa.h target/xtensa/core-test_kc705_be/xtensa-modules.inc.c tests/tcg/cris/check_abs.c tests/tcg/cris/check_addc.c tests/tcg/cris/check_addcm.c tests/tcg/cris/check_addoq.c tests/tcg/cris/check_bound.c tests/tcg/cris/check_ftag.c tests/tcg/cris/check_int64.c tests/tcg/cris/check_lz.c tests/tcg/cris/check_openpf5.c tests/tcg/cris/check_sigalrm.c tests/tcg/cris/crisutils.h tests/tcg/cris/sys.c tests/tcg/i386/test-i386-ssse3.c ui/vgafont.h Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20181213223737.11793-3-pbonzini@redhat.com> Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Eric Blake <eblake@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Stefan Markovic <smarkovic@wavecomp.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11remove space-tab sequencesPaolo Bonzini4-5/+5
There are not many, and they are all simple mistakes that ended up being committed. Remove them. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20181213223737.11793-2-pbonzini@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-11qemu/queue.h: leave head structs anonymous unless necessaryPaolo Bonzini1-1/+1
Most list head structs need not be given a name. In most cases the name is given just in case one is going to use QTAILQ_LAST, QTAILQ_PREV or reverse iteration, but this does not apply to lists of other kinds, and even for QTAILQ in practice this is only rarely needed. In addition, we will soon reimplement those macros completely so that they do not need a name for the head struct. So clean up everything, not giving a name except in the rare case where it is necessary. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-01-10Merge remote-tracking branch ↵Peter Maydell1-4/+57
'remotes/vivier2/tags/linux-user-for-4.0-pull-request' into staging Minor linux-user update (2019-01-10) Fixes LTP tests pwrite03 and pwrite03_64 # gpg: Signature made Thu 10 Jan 2019 08:37:04 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-4.0-pull-request: linux-user: make pwrite64/pread64(fd, NULL, 0, offset) return 0 Add getsockopt for settable SOL_IPV6 options Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-01-10linux-user: make pwrite64/pread64(fd, NULL, 0, offset) return 0Peter Maydell1-4/+18
Linux returns success if pwrite64() or pread64() are called with a zero length NULL buffer, but QEMU was returning -TARGET_EFAULT. This is the same bug that we fixed in commit 58cfa6c2e6eb51b23cc9 for the write syscall, and long before that in 38d840e6790c29f59 for the read syscall. Fixes: https://bugs.launchpad.net/qemu/+bug/1810433 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190108184900.9654-1-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-10Add getsockopt for settable SOL_IPV6 optionsTom Deseyn1-0/+39
Signed-off-by: Tom Deseyn <tom.deseyn@gmail.com> Message-Id: <20181213130611.7496-1-tom.deseyn@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-01-09target/ppc: move FP and VMX registers into aligned vsr register arrayMark Cave-Ayland1-12/+16
The VSX register array is a block of 64 128-bit registers where the first 32 registers consist of the existing 64-bit FP registers extended to 128-bit using new VSR registers, and the last 32 registers are the VMX 128-bit registers as show below: 64-bit 64-bit +--------------------+--------------------+ | FP0 | | VSR0 +--------------------+--------------------+ | FP1 | | VSR1 +--------------------+--------------------+ | ... | ... | ... +--------------------+--------------------+ | FP30 | | VSR30 +--------------------+--------------------+ | FP31 | | VSR31 +--------------------+--------------------+ | VMX0 | VSR32 +-----------------------------------------+ | VMX1 | VSR33 +-----------------------------------------+ | ... | ... +-----------------------------------------+ | VMX30 | VSR62 +-----------------------------------------+ | VMX31 | VSR63 +-----------------------------------------+ In order to allow for future conversion of VSX instructions to use TCG vector operations, recreate the same layout using an aligned version of the existing vsr register array. Since the old fpr and avr register arrays are removed, the existing callers must also be updated to use the correct offset in the vsr register array. This also includes switching the relevant VMState fields over to using subarrays to make sure that migration is preserved. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-12-26linux-user: Add safe_syscall for riscv64 hostRichard Henderson2-0/+100
Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-12-26linux-user: Add host dependency for RISC-V 64-bitAlistair Francis1-0/+11
Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <9d777f619840a8dd8e4f3834dcfc3bd28e052ccd.1545246859.git.alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-12-26linux-user: Add host dependency for RISC-V 32-bitAlistair Francis1-0/+11
Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Michael Clark <mjc@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <76f8f9383a766dbcade883e897dec8cfef669799.1545246859.git.alistair.francis@wdc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-11-17linux-user: Update MIPS specific prctl() implementationStefan Markovic1-0/+18
Perform needed checks before actual prctl() PR_SET_FP_MODE and PR_GET_FP_MODE work based on kernel implementation. Also, update necessary hflags. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-11-15linux-user/sparc/signal.c: Remove dead codePeter Maydell1-8/+8
Coverity complains (CID 1390847) about some dead code in do_sigreturn(). This is an if (err) clause that can never be true, copied from the kernel (where __get_user returns an error). The one code path that could report an error is in the currently commented-out pseudocode for handling FPU register restoring, so move the if into that comment (and fix the broken indent in the comment in the process). (The new position for the error check is also the semantically correct one -- we should not restore the signal mask from the signal frame if we get an error here, so the check must be done before set_sigmask(), not after.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-id: 20181115114616.26265-1-peter.maydell@linaro.org
2018-11-12linux-user: Add support for SO_REUSEPORTYunqiang Su2-0/+13
Add support for SO_REUSEPORT, including strace support. SO_REUSEPORT was introduced relatively recently, since Linux 3.9, so use '#if defined SO_REUSEPORT'. Signed-off-by: Yunqiang Su <ysu@wavecomp.com> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1540904108-30873-4-git-send-email-aleksandar.markovic@rt-rk.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-11-12linux-user: Clean up nios2 main loop signal handlingPeter Maydell1-11/+6
The nios2 main loop code's code does some odd things with gdb_handlesig() that no other target CPU does: it has some signals that are delivered to gdb and only to gdb. Stop doing this, and instead behave like all the other targets: * a trap instruction becomes a SIGTRAP * an unhandled exception type returned from cpu_exec() causes us to abort(), not to try to hand gdb a SIGILL This fixes in passing Coverity issue CID 1390853, which was a complaint that the old code failed to check the return value from gdb_handlesig(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20181019174958.26616-3-peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> [lv: removed gdbsig unused variable] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-11-12linux-user: Don't call gdb_handlesig() before queue_signal()Peter Maydell16-151/+62
The CPU main-loop routines for linux-user generally call gdb_handlesig() when they're about to queue a SIGTRAP signal. This is wrong, because queue_signal() will cause us to pend a signal, and process_pending_signals() will then call gdb_handlesig() itself. So the effect is that we notify gdb of the SIGTRAP, and then if gdb says "OK, continue with signal X" we will incorrectly notify gdb of the signal X as well. We don't do this double-notify for anything else, only SIGTRAP. Remove this unnecessary and incorrect code from all the targets except for nios2 (whose main loop is doing something different and broken, and will be handled in a separate patch). This bug only manifests if the user responds to the reported SIGTRAP using "signal SIGFOO" rather than "continue"; since the latter is the overwhelmingly common thing to do after a breakpoint most people won't have hit this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20181019174958.26616-2-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-11-12linux-user: Remove dead error-checking codePeter Maydell3-9/+0
Remove some dead code spotted by Coverity (CID 1009855, 1390854, 1390847). The underlying cause in all these cases is the same: QEMU's put_user operations can't result in errors, but the kernel's equivalent does. So when code was copied from the kernel signal-frame-setup/teardown code, checks on error flags that were needed in the kernel became dead code for us. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20181019161715.12122-1-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-11-01target/m68k: use EXCP_ILLEGAL instead of EXCP_UNSUPPORTEDLaurent Vivier1-1/+0
Coldfire defines an "Unsupported instruction" exception if execution of a valid instruction is attempted but the required hardware is not present in the processor. We use it with instructions that are in fact undefined or illegal, and the exception expected in this case by the kernel is the illegal exception, so this patch fixes that. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20181030165554.5761-1-laurent@vivier.eu>
2018-10-31Merge remote-tracking branch 'remotes/xtensa/tags/20181030-xtensa' into stagingPeter Maydell2-4/+14
target/xtensa: support for bFLT binaries - add support for bFLT binaries for target/xtensa - fix per-architecture target_flat.h customization - fix initial stack pointer for bFLT # gpg: Signature made Tue 30 Oct 2018 18:27:42 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/20181030-xtensa: linux-user/flatload: fix initial stack pointer alignment linux-user: xtensa: enable bFLT support Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-30linux-user/flatload: fix initial stack pointer alignmentMax Filippov1-3/+3
Stack pointer alignment code incorrectly adds stack_size to sp instead of subtracting it. It also does not take flat_argvp_envp_on_stack() into account when calculating stack_size. This results in initial stack pointer misalignment with certain set of command line arguments and environment variables and correct alignment for the same binary with a different set of arguments. This misalignment causes failures in the following tests in the testsuite of gcc built for xtensa uclinux: gcc.dg/torture/vshuf-v64qi.c gcc.dg/torture/vshuf-v8sf.c gcc.dg/torture/vshuf-v8si.c Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-10-30Merge remote-tracking branch ↵Peter Maydell1-1/+1
'remotes/vivier2/tags/qemu-trivial-for-3.1-pull-request' into staging QEMU trivial patches collected between June and October 2018 (Thank you to Thomas Huth) v2: fix 32bit build with updated patch (v3) from Philippe Mathieu-Daudé built in a 32bit debian sid chroot # gpg: Signature made Tue 30 Oct 2018 11:23:01 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/qemu-trivial-for-3.1-pull-request: milkymist-minimac2: Use qemu_log_mask(GUEST_ERROR) instead of error_report ppc: move at24c to its own CONFIG_ symbol hw/intc/gicv3: Remove useless parenthesis around DIV_ROUND_UP macro hw/pci-host: Remove useless parenthesis around DIV_ROUND_UP macro tests/bios-tables-test: Remove an useless cast xen: Use the PCI_DEVICE macro qobject: Catch another straggler for use of qdict_put_str() configure: Support pkg-config for zlib tests: Fix typos in comments and help message (found by codespell) cpu.h: fix a typo in comment linux-user: fix comment s/atomic_write/atomic_set/ qemu-iotests: make 218 executable scripts/qemu.py: remove trailing quotes on docstring scripts/decodetree.py: remove unused imports docs/devel/testing.rst: add missing newlines after code block qemu-iotests: fix filename containing checks tests/tcg/README: fix location for lm32 tests memory.h: fix typos in comments vga_int: remove unused function protype configs/alpha: Remove unused CONFIG_PARALLEL_ISA switch Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-29linux-user: Add prctl() PR_SET_FP_MODE and PR_GET_FP_MODE implementationsStefan Markovic3-4/+62
Implement MIPS specific prctl() PR_SET_FP_MODE and PR_GET_FP_MODE emulation. Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
2018-10-29linux-user: Determine the desired FPU mode from MIPS.abiflagsStefan Markovic1-0/+75
Floating-point mode is calculated from MIPS.abiflags FP ABI value (based on kernel implementation). Illegal combinations are rejected. Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com> Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 00:42:38 +0000