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2023-03-22*: Add missing includes of qemu/plugin.hRichard Henderson2-0/+2
This had been pulled in from hw/core/cpu.h, but that will be removed. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230310195252.210956-6-richard.henderson@linaro.org> [AJB: also syscall-trace.h] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230315174331.2959-16-alex.bennee@linaro.org> Reviewed-by: Emilio Cota <cota@braap.org>
2023-03-22*: Add missing includes of qemu/error-report.hRichard Henderson1-0/+1
This had been pulled in via qemu/plugin.h from hw/core/cpu.h, but that will be removed. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230310195252.210956-5-richard.henderson@linaro.org> [AJB: add various additional cases shown by CI] Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230315174331.2959-15-alex.bennee@linaro.org> Reviewed-by: Emilio Cota <cota@braap.org>
2023-03-12Merge tag 'linux-user-for-8.0-pull-request' of ↵Peter Maydell16-138/+518
https://gitlab.com/laurent_vivier/qemu into staging Pull request linux-user 20230308-v2 Fix gdt on i386/x86_64 Handle traps on sparc Add translation for argument of msync Emulate CLONE_PIDFD flag in clone handle netlink flag NLA_F_NESTED fix sockaddr_in6 endianness Fix brk() to release pages fill out task state in /proc/self/stat add support for xtensa FDPIC Fix unaligned memory access in prlimit64 syscall add target to host netlink conversions fix timerfd read endianness conversion Fix access to /proc/self/exe Add strace for prlimit64() syscall # -----BEGIN PGP SIGNATURE----- # # iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmQLqmMSHGxhdXJlbnRA # dml2aWVyLmV1AAoJEPMMOL0/L748e+cP/3XYMvPbExNi09idDvgzzBrFFHgnkCnK # WAV/laxjHSJkzRNK06jD5KN/G2Osy587GXAWLaN76Y8mYMNJs5x3wwlBrJm0RyeJ # mWeETJOjxsFjW1+5LKhYv6fwiDxQcyJUoRKzJI27fYgDS+H+zIpa+uhy82Ah543z # i/HPyerp25TWAuVyR6mQICt7cne+4yjhtcjg0GXmnvm2+UVp54FGjesjwpSdbALl # OKdCre/JaNOkKoaRSsxm0UhNEyQarJIEf/dv0fTjsEpvNX2SMuLUGCm+n23wjXGN # fdnSGkoVe8hHxBtG80Zx8AMfKEmJoVsQw9rSg4HwQKOyrYPnLhHjb8ln43X+f3MN # gq9lDBIxH82LH2Q5JqQQe7S2UJycpYb+qj0xm7llH7Wl9VVKG6hRX/Cd7I1PQLEv # baPIrtye5TuR6uo0kn6HBB+Hd9RNu2PPHelmEFIGEuNaAPkyOt4FhKFIE/j0BTcg # mFVCNj6Os805ks0sjIBvpTU1DBtuqpLxdvvHOwxYKCNThTl70wfHJJEjumfvZ4qT # T+me7hRsd+8v1rRjxYGuJn2gqC7JL8miuJCYlZkn2DfMAunmF00U5ULe9KiCJ8V3 # kDfvO+CdnIN4MSlbtwt+eRSFCmJGGkzZ/jshVxPF3ZVirFu/undphYQnaEZDH+Xd # KsPOh8MekMgJ # =e55j # -----END PGP SIGNATURE----- # gpg: Signature made Fri 10 Mar 2023 22:08:35 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu: (28 commits) linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64 linux-user/sparc: Handle tag overflow traps linux-user/sparc: Handle floating-point exceptions linux-user/sparc: Handle unimplemented flush trap linux-user/sparc: Handle coprocessor disabled trap linux-user/sparc: Handle privilidged action trap linux-user/sparc: Handle priviledged opcode trap linux-user/sparc: Handle getcc, setcc, getpsr traps linux-user/sparc: Handle division by zero traps linux-user/sparc: Handle software breakpoint trap linux-user/sparc: Fix sparc64_{get, set}_context traps linux-user/sparc: Tidy window spill/fill traps linux-user/sparc: Use TT_TRAP for flush windows linux-user/sparc: Tidy syscall error return linux-user/sparc: Tidy syscall trap linux-user: Emulate CLONE_PIDFD flag in clone() linux-user: Add translation for argument of msync() linux-user: handle netlink flag NLA_F_NESTED linux-user: fix sockaddr_in6 endianness linux-user: Add strace for prlimit64() syscall ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-10linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64fanwj@mail.ustc.edu.cn2-0/+17
On linux user mode, CPUX86State::gdt::base from Different CPUX86State Objects have same value, It is incorrect! Every CPUX86State::gdt::base Must points to independent memory space. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1405 Signed-off-by: fanwenjie <fanwj@mail.ustc.edu.cn> Message-Id: <4172b90.58b08.18631b77860.Coremail.fanwj@mail.ustc.edu.cn> [lv: remove unnecessary casts, split overlong line] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle tag overflow trapsRichard Henderson3-1/+9
This trap is raised by taddcctv and tsubcctv insns. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle floating-point exceptionsRichard Henderson1-0/+22
Raise SIGFPE for ieee exceptions. The other types, such as FSR_FTT_UNIMPFPOP, should not appear, because we enable normal emulation of missing insns at the start of sparc_cpu_realizefn(). Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-15-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle unimplemented flush trapRichard Henderson1-0/+3
For sparc64, TT_UNIMP_FLUSH == TT_ILL_INSN, so this is already handled. For sparc32, the kernel uses SKIP_TRAP. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-14-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle coprocessor disabled trapRichard Henderson1-0/+4
Since qemu does not implement a sparc coprocessor, all such instructions raise this trap. Because of that, we never raise the coprocessor exception trap, which would be vector 0x28. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-13-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle privilidged action trapRichard Henderson1-0/+6
This is raised by using an %asi < 0x80 in user-mode. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-12-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle priviledged opcode trapRichard Henderson1-0/+3
For the most part priviledged opcodes are ifdefed out of the user-only sparc translator, which will then incorrectly produce illegal opcode traps. But there are some code paths that properly raise TT_PRIV_INSN, so we must handle it. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-11-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle getcc, setcc, getpsr trapsRichard Henderson1-3/+59
These are really only meaningful for sparc32, but they're still present for backward compatibility for sparc64. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle division by zero trapsRichard Henderson1-0/+5
In addition to the hw trap vector, there is a software trap assigned for older sparc without hw division instructions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-9-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Handle software breakpoint trapRichard Henderson1-3/+5
This is 'ta 1' for both v9 and pre-v9. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Fix sparc64_{get, set}_context trapsRichard Henderson2-28/+29
These traps are present for sparc64 with ilp32, aka sparc32plus. Enabling them means adjusting the defines over in signal.c, and fixing an incorrect usage of abi_ulong when we really meant the full register, target_ulong. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Tidy window spill/fill trapsRichard Henderson1-10/+13
Add some macros to localize the hw difference between v9 and pre-v9. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230216054516.1267305-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Use TT_TRAP for flush windowsRichard Henderson1-4/+3
The v9 and pre-v9 code can be unified with this macro. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230216054516.1267305-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Tidy syscall error returnRichard Henderson1-10/+5
Reduce ifdefs with #define syscall_cc. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230216054516.1267305-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user/sparc: Tidy syscall trapRichard Henderson1-7/+7
Use TT_TRAP. For sparc32, 0x88 is the "Slowaris" system call, currently BAD_TRAP in the kernel's ttable_32.S. For sparc64, 0x110 is tl0_linux32, the sparc32 trap, now folded into the TARGET_ABI32 case via TT_TRAP. For sparc64, there does still exist trap 0x111 as tl0_oldlinux64, which was replaced by 0x16d as tl0_linux64 in 1998. Since no one has noticed, don't bother implementing it now. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230216054516.1267305-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Emulate CLONE_PIDFD flag in clone()Helge Deller2-1/+35
Add emulation for the CLONE_PIDFD flag of the clone() syscall. This flag was added in Linux kernel 5.2. Successfully tested on a x86-64 Linux host with hppa-linux target. Can be verified by running the testsuite of the qcoro debian package, which breaks hard and kills the currently logged-in user without this patch. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y4XoJCpvUA1JD7Sj@p100> [lv: define CLONE_PIDFD if it is not] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Add translation for argument of msync()Helge Deller5-2/+33
msync() uses the flags MS_ASYNC, MS_INVALIDATE and MS_SYNC, which differ between platforms, specifcally on alpha and hppa. Add a target to host translation for those and wire up a nicer strace output. This fixes the testsuite of the macaulay2 debian package with a hppa-linux guest on a x86-64 host. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y5rMcts4qe15RaVN@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: handle netlink flag NLA_F_NESTEDMathis Marion1-2/+2
Newer kernel versions require this flag to be present contrary to older ones. Depending on the libnl version it is added or not. Typically when using rtnl_link_inet6_set_addr_gen_mode, the netlink packet generated may contain the following attribute: with libnl 3.4 {nla_len=16, nla_type=IFLA_AF_SPEC}, [ {nla_len=12, nla_type=AF_INET6}, [{nla_len=5, nla_type=IFLA_INET6_ADDR_GEN_MODE}, IN6_ADDR_GEN_MODE_NONE] ] with libnl 3.7 {nla_len=16, nla_type=NLA_F_NESTED|IFLA_AF_SPEC}, [ {nla_len=12, nla_type=NLA_F_NESTED|AF_INET6}, [{nla_len=5, nla_type=IFLA_INET6_ADDR_GEN_MODE}, IN6_ADDR_GEN_MODE_NONE]] ] Masking the type is likely needed in other places. Only the above cases are implemented in this patch. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230307154256.101528-3-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: fix sockaddr_in6 endiannessMathis Marion1-0/+5
The sin6_scope_id field uses the host byte order, so there is a conversion to be made when host and target endianness differ. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20230307154256.101528-2-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Add strace for prlimit64() syscallHelge Deller2-1/+90
Add proper prlimit64() strace output. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20221222190639.124078-1-deller@gmx.de> [lvivier: use print_raw_param64()] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Provide print_raw_param64() for 64-bit valuesHelge Deller1-4/+16
Add a new function print_raw_param64() to print 64-bit values in the same way as print_raw_param(). This prevents that qemu_log() is used to work around the problem that print_raw_param() can only print 32-bit values when compiled for 32-bit targets. Additionally convert the existing 64-bit users in print_timespec64(), print_rlimit64() and print_preadwrite64() over to this new function and drop some unneccessary spaces. Suggested-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y9lNbFNyRSUhhrHa@p100> [lvivier: remove print_preadwrite64 and print_rlimit64 part] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Fix brk() to release pagesHelge Deller1-34/+35
The current brk() implementation does not de-allocate pages if a lower address is given compared to earlier brk() calls. But according to the manpage, brk() shall deallocate memory in this case and currently it breaks a real-world application, specifically building the debian gcl package in qemu-user. Fix this issue by reworking the qemu brk() implementation. Tested with the C-code testcase included in qemu commit 4d1de87c750, and by building debian package of gcl in a hppa-linux guest on a x86-64 host. Signed-off-by: Helge Deller <deller@gmx.de> Message-Id: <Y6gId80ek49TK1xB@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: fill out task state in /proc/self/statAndreas Schwab1-0/+3
Some programs want to match an actual task state character. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmedq2kxoe.fsf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: add support for xtensa FDPICMax Filippov1-1/+15
Define xtensa-specific info_is_fdpic and fill in FDPIC-specific registers in the xtensa version of init_thread. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Message-Id: <20230205061230.544451-1-jcmvbkbc@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Fix unaligned memory access in prlimit64 syscallIlya Leoshkevich2-6/+6
target_rlimit64 contains uint64_t fields, so it's 8-byte aligned on some hosts, while some guests may align their respective type on a 4-byte boundary. This may lead to an unaligned access, which is an UB. Fix by defining the fields as abi_ullong. This makes the host alignment match that of the guest, and lets the compiler know that it should emit code that can deal with the guest alignment. While at it, also use __get_user() and __put_user() instead of tswap64(). Fixes: 163a05a8398b ("linux-user: Implement prlimit64 syscall") Reported-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230224003907.263914-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: add target to host netlink conversionsMathis Marion1-0/+62
Added conversions for: - IFLA_MTU - IFLA_TXQLEN - IFLA_AF_SPEC AF_INET6 IFLA_INET6_ADDR_GEN_MODE These relate to the libnl functions rtnl_link_set_mtu, rtnl_link_set_txqlen, and rtnl_link_inet6_set_addr_gen_mode. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230220085822.626798-4-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: fix timerfd read endianness conversionMathis Marion3-5/+14
When reading the expiration count from a timerfd, the endianness of the 64bit value read is the one of the host, just as for eventfds. Signed-off-by: Mathis Marion <mathis.marion@silabs.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230220085822.626798-2-Mathis.Marion@silabs.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-10linux-user: Fix access to /proc/self/exeHelge Deller2-24/+20
When accsssing /proc/self/exe from a userspace program, linux-user tries to resolve the name via realpath(), which may fail if the process changed the working directory in the meantime. An example: - a userspace program ist started with ./testprogram - the program runs chdir("/tmp") - then the program calls readlink("/proc/self/exe") - linux-user tries to run realpath("./testprogram") which fails because ./testprogram isn't in /tmp - readlink() will return -ENOENT back to the program Avoid this issue by resolving the full path name of the started process at startup of linux-user and store it in real_exec_path[]. This then simplifies the emulation of readlink() and readlinkat() as well, because they can simply copy the path string to userspace. I noticed this bug because the testsuite of the debian package "pandoc" failed on linux-user while it succeeded on real hardware. The full log is here: https://buildd.debian.org/status/fetch.php?pkg=pandoc&arch=hppa&ver=2.17.1.1-1.1%2Bb1&stamp=1670153210&raw=0 Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20221205113825.20615-1-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-03-07gdbstub: move syscall handling to new fileAlex Bennée1-1/+1
Our GDB syscall support is the last chunk of code that needs target specific support so move it to a new file. We take the opportunity to move the syscall state into its own singleton instance and add in a few helpers for the main gdbstub to interact with the module. I also moved the gdb_exit() declaration into syscalls.h as it feels pretty related and most of the callers of it treat it as such. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-22-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-22-richard.henderson@linaro.org>
2023-03-07gdbstub: move chunks of user code into own filesAlex Bennée2-1/+2
The process was pretty similar to the softmmu move except we take the time to split stuff between user.c and user-target.c to avoid as much target specific compilation as possible. We also start to make use of our shiny new header scheme so the user-only helpers can be included without the rest of the exec/gsbstub.h cruft. As before we split some functions into user and softmmu versions Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-12-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-12-richard.henderson@linaro.org>
2023-03-07includes: move tb_flush into its own headerAlex Bennée1-0/+1
This aids subsystems (like gdbstub) that want to trigger a flush without pulling target specific headers. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230302190846.2593720-8-alex.bennee@linaro.org> Message-Id: <20230303025805.625589-8-richard.henderson@linaro.org>
2023-02-21linux-user/microblaze: Handle privileged exceptionIlya Leoshkevich1-2/+8
Follow what kernel's full_exception() is doing. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230214140829.45392-4-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-21linux-user: Always exit from exclusive state in fork_end()Ilya Leoshkevich2-4/+7
fork()ed processes currently start with current_cpu->in_exclusive_context set, which is, strictly speaking, not correct, but does not cause problems (even assertion failures). With one of the next patches, the code begins to rely on this value, so fix it by always calling end_exclusive() in fork_end(). Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20230214140829.45392-2-iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-21linux-user/sparc: Raise SIGILL for all unhandled software trapsRichard Henderson1-0/+8
The linux kernel's trap tables vector all unassigned trap numbers to BAD_TRAP, which then raises SIGILL. Tested-by: Ilya Leoshkevich <iii@linux.ibm.com> Reported-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-16target/arm: Convert CPUARMState::eabi to booleanPhilippe Mathieu-Daudé2-3/+3
Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20230206223502.25122-6-philmd@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-04Merge tag 'linux-user-for-8.0-pull-request' of ↵Peter Maydell10-248/+378
https://gitlab.com/laurent_vivier/qemu into staging linux-user branch pull request 20230204 Implement execveat() un-parent OBJECT(cpu) when closing thread Revert fix for glibc >= 2.36 sys/mount.h Fix/update strace move target_flat.h to target subdirs Fix SO_ERROR return code of getsockopt() Fix /proc/cpuinfo output for hppa Add emulation for MADV_WIPEONFORK and MADV_KEEPONFORK in madvise() Implement SOL_ALG encryption support linux-user: Allow sendmsg() without IOV # -----BEGIN PGP SIGNATURE----- # # iQJGBAABCAAwFiEEzS913cjjpNwuT1Fz8ww4vT8vvjwFAmPeguUSHGxhdXJlbnRA # dml2aWVyLmV1AAoJEPMMOL0/L748tnQP/1A4eu33pLe4+tjBuDGt2zcGAVuz+wN9 # rcwN5BQgjILwfECfRsy9QIkC8+M496tLk4W7pNkW9x/GSpzBp9x0+066uUghsa1Q # c0bFU0FM8xpywEXvOrz3LvEWaWqeBV/R+XYMqKFaiBQXf/5kmmteei9guH42L3gV # a+d0s1cWT48TslTaga9ECbiPD9lK+yfW879+wRhex1/BetkJPzLU1hZB4vfC5YQo # XagcmLWiseT4U8uCysikOgKQE4g2bv1oJXUuYjBxW15s5/llg8e57dEboO7MFEPK # a9P3Hl1qiA5Ol3scF1I7WURmGP6UVfdhTYe1aKYHhKY7QVBVjbU7r/NkdQ3dR6Nv # db58Lkurnrf5dMksZk8+25F/fvJT0nZpnbipunZejetNjrDVPk19XK5E6kJf91hk # 3W3vOeWMp4QjThpqghnlQ3gm2XfVmCGSMIOywTKZ4/M/TP28+9zY7GZqQXQXCBMy # nJFahfVTCfiYaGAYGjlMe5CMOQ6tJ6lwxuTCl9O1X565ifMBNUj3rcte1FvO/i24 # Rk0/lQVO+tD9ImxHJrei0Y2C0xzo7V8kaB9+foAf6Ku91SY1X1FIOm81DEyAhK61 # Biv2zlNwUV0aCierrn3oLuDkviVaAg6FkLO9snPG+lQy2uxgyJJ2/Pv0OCZhniWI # 9WifjYZKAXDa # =AcC6 # -----END PGP SIGNATURE----- # gpg: Signature made Sat 04 Feb 2023 16:08:05 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu: (22 commits) linux-user: Allow sendmsg() without IOV linux-user: Implement SOL_ALG encryption support linux-user: Enhance strace output for various syscalls linux-user: Show 4th argument of rt_sigprocmask() in strace linux-user: Add emulation for MADV_WIPEONFORK and MADV_KEEPONFORK in madvise() linux-user: Improve strace output of personality() and sysinfo() linux-user: Fix /proc/cpuinfo output for hppa linux-user: Fix SO_ERROR return code of getsockopt() linux-user: move target_flat.h to target subdirs linux-user: Improve strace output of getgroups() and setgroups() linux-user: Add strace output for clock_getres_time64() and futex_time64() Revert "linux-user: fix compat with glibc >= 2.36 sys/mount.h" Revert "linux-user: add more compat ioctl definitions" linux-user: add more netlink protocol constants linux-user: fix strace build w/out munlockall linux-user: un-parent OBJECT(cpu) when closing thread linux-user: Add missing MAP_HUGETLB and MAP_STACK flags in strace linux-user/syscall: Implement execveat() linux-user/syscall: Extract do_execve() from do_syscall1() linux-user/strace: Add output for execveat() syscall ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-03linux-user: Allow sendmsg() without IOVHelge Deller1-2/+7
Applications do call sendmsg() without any IOV, e.g.: sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=NULL, msg_iovlen=0, msg_control=[{cmsg_len=36, cmsg_level=SOL_ALG, cmsg_type=0x2}], msg_controllen=40, msg_flags=0}, MSG_MORE) = 0 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="The quick brown fox jumps over t"..., iov_len=183}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_ALG, cmsg_type=0x3}], msg_controllen=24, msg_flags=0}, 0) = 183 The function do_sendrecvmsg_locked() is used for sndmsg() and recvmsg() and calls lock_iovec() to lock the IOV into memory. For the first sendmsg() above it returns NULL and thus wrongly skips the call the host sendmsg() syscall, which will break the calling application. Fix this issue by: - allowing sendmsg() even with empty IOV - skip recvmsg() if IOV is NULL - skip both if the return code of do_sendrecvmsg_locked() != 0, which indicates some failure like EFAULT on the IOV Tested with the debian "ell" package with hppa guest on x86_64 host. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20221212173416.90590-2-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Implement SOL_ALG encryption supportHelge Deller1-0/+8
Add suport to handle SOL_ALG packets via sendmsg() and recvmsg(). This allows emulated userspace to use encryption functionality. Tested with the debian ell package with hppa guest on x86_64 host. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20221212173416.90590-1-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Enhance strace output for various syscallsHelge Deller1-20/+23
Add appropriate strace printf formats for various Linux syscalls. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <Y5dsfGB1RChGfraW@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Show 4th argument of rt_sigprocmask() in straceHelge Deller1-1/+2
Add output for the missing 4th parameter (size_t sigsetsize). Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y9hCxdvdM1o+/iHC@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Add emulation for MADV_WIPEONFORK and MADV_KEEPONFORK in madvise()Helge Deller1-13/+43
Both parameters have a different value on the parisc platform, so first translate the target value into a host value for usage in the native madvise() syscall. Those parameters are often used by security sensitive applications (e.g. tor browser, boringssl, ...) which expect the call to return a proper return code on failure, so return -EINVAL if qemu fails to forward the syscall to the host OS. While touching this code, enhance the comments about MADV_DONTNEED. Tested with testcase of tor browser when running hppa-linux guest on x86-64 host. Signed-off-by: Helge Deller <deller@gmx.de> Acked-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y5iwTaydU7i66K/i@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Improve strace output of personality() and sysinfo()Helge Deller1-2/+3
Make the strace look nicer for those two syscalls. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y9QxskymWJjrKQmT@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Fix /proc/cpuinfo output for hppaHelge Deller1-5/+11
The hppa architectures provides an own output for the emulated /proc/cpuinfo file. Some userspace applications count (even if that's not the recommended way) the number of lines which start with "processor:" and assume that this number then reflects the number of online CPUs. Since those 3 architectures don't provide any such line, applications may assume "0" CPUs. One such issue can be seen in debian bug report: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024653 Avoid such issues by adding a "processor:" line for each of the online CPUs. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y9QvyRSq1I1k5/JW@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Fix SO_ERROR return code of getsockopt()Helge Deller1-1/+6
Add translation for the host error return code of: getsockopt(19, SOL_SOCKET, SO_ERROR, [ECONNREFUSED], [4]) = 0 This fixes the testsuite of the cockpit debian package with a hppa-linux guest on a x86-64 host. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <Y9QzNzXg0hrzHQeo@p100> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: move target_flat.h to target subdirsMike Frysinger6-0/+5
This makes target_flat.h behave like every other target_xxx.h header. It also makes it actually work -- while the current header says adding a header to the target subdir overrides the common one, it doesn't. This is for two reasons: * meson.build adds -Ilinux-user before -Ilinux-user/$arch * the compiler search path for "target_flat.h" looks in the same dir as the source file before searching -I paths. This can be seen with the xtensa port -- the subdir settings aren't used which breaks stack setup. Move it to the generic/ subdir and add include stubs like every other target_xxx.h header is handled. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230129004625.11228-1-vapier@gentoo.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Improve strace output of getgroups() and setgroups()Helge Deller1-4/+4
Make the strace look nicer for those syscalls. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230115210057.445132-1-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-02-03linux-user: Add strace output for clock_getres_time64() and futex_time64()Helge Deller1-0/+6
Add the two syscalls to strace output to avoid "Unknown syscall" message. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20230115113517.25143-1-deller@gmx.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
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