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2021-09-02plugins: allow plugin arguments to be passed directlyMahmoud Mandour1-1/+1
Passing arguments to plugins had to be done through "arg=<argname>". This is redundant and introduces confusion especially when the argument has a name and value (e.g. `-plugin plugin_name,arg="argname=argvalue"`). This allows passing plugin arguments directly e.g: `-plugin plugin_name,argname=argvalue` For now, passing arguments through "arg=" is still supports but outputs a deprecation warning. Also, this commit makes boolean arguments passed to plugins in the `argname=on|off` form instead of the deprecated short-boolean form. Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com> Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210730135817.17816-2-ma.mandourr@gmail.com>
2021-08-26target/arm: Do hflags rebuild in cpsr_write()Peter Maydell1-2/+0
Currently we rely on all the callsites of cpsr_write() to rebuild the cached hflags if they change one of the CPSR bits which we use as a TB flag and cache in hflags. This is a bit awkward when we want to change the set of CPSR bits that we cache, because it means we need to re-audit all the cpsr_write() callsites to see which flags they are writing and whether they now need to rebuild the hflags. Switch instead to making cpsr_write() call arm_rebuild_hflags() itself if one of the bits being changed is a cached bit. We don't do the rebuild for the CPSRWriteRaw write type, because that kind of write is generally doing something special anyway. For the CPSRWriteRaw callsites in the KVM code and inbound migration we definitely don't want to recalculate the hflags; the callsites in boot.c and arm-powerctl.c have to do a rebuild-hflags call themselves anyway because of other CPU state changes they make. This allows us to drop explicit arm_rebuild_hflags() calls in a couple of places where the only reason we needed to call it was the CPSR write. This fixes a bug where we were incorrectly failing to rebuild hflags in the code path for a gdbstub write to CPSR, which meant that you could make QEMU assert by breaking into a running guest, altering the CPSR to change the value of, for example, CPSR.E, and then continuing. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210817201843.3829-1-peter.maydell@linaro.org
2021-08-05linux-user/elfload: byteswap i386 registers when dumping coreIlya Leoshkevich1-44/+44
Core dumps from emulating x86_64 on big-endian hosts contain incorrect register values. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210803172013.148446-1-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-08-05linux-user: fix guest/host address mixup in i386 setup_rt_frame()Ilya Leoshkevich1-4/+4
setup_rt_frame() passes siginfo and ucontext host addresses to guest signal handlers, causing problems when e.g. emulating x86_64 on s390x. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210803171858.148394-1-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-08-03linux-user/s390x: signal with SIGFPE on compare-and-trapJonathan Albrecht1-20/+34
Currently when a compare-and-trap instruction is executed, qemu will always raise a SIGILL signal. On real hardware, a SIGFPE is raised. Change the PGM_DATA case in cpu_loop to follow the behavior in linux kernel /arch/s390/kernel/traps.c. * Only raise SIGILL if DXC == 0 * If DXC matches a non-simulated IEEE exception, raise SIGFPE with correct si_code * Raise SIGFPE with si_code == 0 for everything else When applied on 20210705210434.45824-2-iii@linux.ibm.com, this fixes crashes in the java jdk such as the linked bug. Signed-off-by: Jonathan Albrecht <jonathan.albrecht@linux.vnet.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Buglink: https://bugs.launchpad.net/qemu/+bug/1920913 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/319 Message-Id: <20210709160459.4962-2-jonathan.albrecht@linux.vnet.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-08-03target/s390x: Fix SIGILL and SIGFPE psw.addr reportingIlya Leoshkevich1-1/+11
For SIGILL, SIGFPE and SIGTRAP the PSW must point after the instruction, and at the instruction for other signals. Currently under qemu-user for SIGFILL and SIGFPE it points at the instruction. Fix by advancing psw.addr for these signals. Co-developed-by: Ulrich Weigand <ulrich.weigand@de.ibm.com> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Buglink: https://gitlab.com/qemu-project/qemu/-/issues/319 Message-Id: <20210705210434.45824-2-iii@linux.ibm.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-07-26linux-user/syscall: Remove unused variable from execveRichard Henderson1-3/+0
From clang-13: linux-user/syscall.c:8503:17: error: variable 'total_size' set but not used \ [-Werror,-Wunused-but-set-variable] Acked-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-23tcg/plugins: implement a qemu_plugin_user_exit helperAlex Bennée1-1/+1
In user-mode emulation there is a small race between preexit_cleanup and exit_group() which means we may end up calling instrumented instructions before the kernel reaps child threads. To solve this we implement a new helper which ensures the callbacks are flushed along with any translations before we let the host do it's a thing. While we are at it make the documentation of qemu_plugin_register_atexit_cb clearer as to what the user can expect. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Mahmoud Mandour <ma.mandourr@gmail.com> Acked-by: Warner Losh <imp@bsdimp.com> Message-Id: <20210720232703.10650-21-alex.bennee@linaro.org>
2021-07-21qemu/atomic: Add aligned_{int64,uint64}_t typesRichard Henderson1-1/+1
Use it to avoid some clang-12 -Watomic-alignment errors, forcing some structures to be aligned and as a pointer when we have ensured that the address is aligned. Tested-by: Cole Robinson <crobinso@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-13linux-user: update syscall.tbl to Linux v5.13Laurent Vivier15-73/+170
Updated running scripts/update-syscalltbl.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210708215756.268805-4-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-13linux-user, mips: update syscall-args-o32.c.inc to Linux v5.13Laurent Vivier1-1/+4
Updated running scripts/update-mips-syscall-args.sh scripts/update-mips-syscall-args.sh has been updated to reflect file directory changes in strace repository. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210708215756.268805-3-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-13linux-user: update syscall_nr.h to Linux v5.13Laurent Vivier6-6/+46
Automatically generated using scripts/gensyscalls.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20210708215756.268805-2-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12fd-trans: Fix race condition on reallocation of the translation table.Owen Anderson3-7/+52
The mapping from file-descriptors to translator functions is not guarded on realloc which may cause invalid function pointers to be read from a previously deallocated mapping. Signed-off-by: Owen Anderson <oanderso@google.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210701221255.107976-1-oanderso@google.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user/syscall: Remove ERRNO_TABLE_SIZE checkPhilippe Mathieu-Daudé1-5/+0
Now than target_to_host_errno() always return an errno, we can remove the unused and arbitrary ERRNO_TABLE_SIZE definition. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210708170550.1846343-9-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user: Simplify host <-> target errno conversion using macrosPhilippe Mathieu-Daudé2-145/+154
Convert the host_to_target_errno_table[] array to a switch case to allow compiler optimizations (such noticing the identity function when host and guest errnos match). Extract the errnos list as to a new includible unit, using a generic macro. Remove the code related to target_to_host_errno_table[] initialization. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210708170550.1846343-8-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user/mips: Move errno definitions to 'target_errno_defs.h'Philippe Mathieu-Daudé4-423/+220
Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-7-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user/hppa: Move errno definitions to 'target_errno_defs.h'Philippe Mathieu-Daudé2-210/+214
Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-6-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user/alpha: Move errno definitions to 'target_errno_defs.h'Philippe Mathieu-Daudé2-194/+198
Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-5-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user: Extract target errno to 'target_errno_defs.h'Philippe Mathieu-Daudé24-7/+139
We want to access the target errno indepently of the rest of the linux-user code. Move the header containing the generic errno definitions ('errno_defs.h') to 'generic/target_errno_defs.h', create a new 'target_errno_defs.h' in each target which itself includes 'generic/target_errno_defs.h'. Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-4-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user/sparc: Rename target_errno.h -> target_errno_defs.hPhilippe Mathieu-Daudé2-3/+3
We want to have one generic target_errno.h (API to access target errno), and will add target errno definitions in target_errno_defs.h. The sparc target already have its errnos in an header, simply rename it. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-3-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-12linux-user/syscall: Fix RF-kill errno (typo in ERFKILL)Philippe Mathieu-Daudé1-1/+1
Affected targets: alpha, hppa, mips/64, sparc Fixes: fe8ed7d5794 ("linux-user: Handle ERFKILL and EHWPOISON") Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210708170550.1846343-2-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user/syscall: Remove hardcoded tabs (code style)Philippe Mathieu-Daudé1-94/+94
We are going to move this code, fix its style first. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210704183755.655002-12-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user/alpha: Remove hardcoded tabs (code style)Philippe Mathieu-Daudé1-99/+97
We are going to move this code, fix its style first. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210704183755.655002-7-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user/mips: Handle TARGET_EWOULDBLOCK as TARGET_EAGAINPhilippe Mathieu-Daudé2-0/+4
Linux kernel defines EWOULDBLOCK as EAGAIN (since before v2.6.12-rc2). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210704183755.655002-4-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user/hppa: Handle TARGET_EWOULDBLOCK as TARGET_EAGAINPhilippe Mathieu-Daudé1-0/+2
Linux kernel defines EWOULDBLOCK as EAGAIN (since before v2.6.12-rc2). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210704183755.655002-3-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user/alpha: Handle TARGET_EWOULDBLOCK as TARGET_EAGAINPhilippe Mathieu-Daudé1-0/+2
Linux kernel defines EWOULDBLOCK as EAGAIN (since before v2.6.12-rc2). Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210704183755.655002-2-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user: Fix style problems in linuxload.cRichard Henderson1-22/+20
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210706234932.356913-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user: fill ppid field in /proc/self/statAndreas Schwab1-0/+3
Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmwnqnef5g.fsf@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-07linux-user/elfload: Implement ELF_HWCAP for RISC-VKito Cheng1-0/+13
Set I, M, A, F, D and C bit for hwcap if misa is set. Signed-off-by: Kito Cheng <kito.cheng@sifive.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210706035015.122899-1-kito.cheng@sifive.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-22Merge remote-tracking branch ↵Peter Maydell5-8/+64
'remotes/vivier2/tags/linux-user-for-6.1-pull-request' into staging Linux-user pull request 20210621 # gpg: Signature made Mon 21 Jun 2021 12:03:53 BST # 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 * remotes/vivier2/tags/linux-user-for-6.1-pull-request: linux-user: Use public sigev_notify_thread_id member if available linux-user: Fix incorrect use of feature-test-macros linux-user: Check for ieee128 fpbits in PPC64 HWCAP2 feature list tests/tcg/linux-test: Check that sigaction can query SIGKILL/SIGSTOP linux-user: Let sigaction query SIGKILL/SIGSTOP linux-user: Implement pivot_root linux-user/trace-events: fix minor typo in format string linux-user: Disable static assert involving __SIGRTMAX if it is missing linux-user: Set CF_PARALLEL when mapping shared memory Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-21linux-user/s390x: Save and restore psw.mask properlyRichard Henderson1-5/+32
At present, we're referencing env->psw.mask directly, which fails to ensure that env->cc_op is incorporated or updated. Use s390_cpu_{set_psw,get_psw_mask} to fix this. Mirror the kernel's cleaning of the psw.mask in save_sigregs and restore_sigregs. Ignore PSW_MASK_RI for now, as qemu does not support that. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: David Hildenbrand <david@redhat.com> Tested-by: jonathan.albrecht <jonathan.albrecht@linux.vnet.ibm.com> Tested-by: <ruixin.bao@ibm.com> Message-Id: <20210615030744.1252385-6-richard.henderson@linaro.org> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-06-21linux-user: elf: s390x: Prepare for Vector enhancements facilityDavid Hildenbrand1-0/+1
Let's check for S390_FEAT_VECTOR_ENH and set HWCAP_S390_VXRS_EXT accordingly. Add all missing HWCAP defined in upstream Linux. Cc: Laurent Vivier <laurent@vivier.eu> Acked-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20210608092337.12221-25-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2021-06-20linux-user: Use public sigev_notify_thread_id member if availableMichael Forney1-1/+5
_sigev_un._tid is an internal glibc field and is not available on musl libc. The sigevent(7) man page and Linux UAPI headers both use sigev_notify_thread_id as a public way to access this field. musl libc supports this field since 1.2.2[0], and glibc plans to add support as well[1][2]. If sigev_notify_thread_id is not available, fall back to _sigev_un._tid as before. [0] http://git.musl-libc.org/cgit/musl/commit/?id=7c71792e87691451f2a6b76348e83ad1889f1dcb [1] https://www.openwall.com/lists/musl/2019/08/01/5 [2] https://sourceware.org/bugzilla/show_bug.cgi?id=27417 Signed-off-by: Michael Forney <mforney@mforney.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210526035556.7931-1-mforney@mforney.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-20linux-user: Fix incorrect use of feature-test-macrosMichael Forney1-4/+3
The _POSIX_C_SOURCE and _XOPEN_SOURCE macros are used by the application to indicate to libc which declarations it should expose. Since qemu does not define them anywhere, it does not make sense to check their value. Instead, since the intent is to determine whether the host struct stat supports the st_*tim fields, use the configure test result which does exactly that. Signed-off-by: Michael Forney <mforney@mforney.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210526035531.7871-1-mforney@mforney.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-20linux-user: Check for ieee128 fpbits in PPC64 HWCAP2 feature listKhem Raj1-1/+1
glibc 2.34 is now checking for this in hwcaps at runtime [1] and failing to run the binary if machine does not support 128bit IEEE fp Fixes Fatal glibc error: CPU lacks float128 support (POWER 9 or later required) [1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=d337345ce145e23c5f3a956f349d924fdf54ce2d;hp=eb24865637a271ab7dad13190330105eab0d478d Signed-off-by: Khem Raj <raj.khem@gmail.com> Cc: Florian Weimer <fweimer@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210614191729.2981488-1-raj.khem@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-20linux-user: Let sigaction query SIGKILL/SIGSTOPIlya Leoshkevich1-1/+5
The kernel allows doing this, so let's allow this in qemu as well. Valgrind relies on this. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210601145600.3131040-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-20linux-user: Implement pivot_rootYAMAMOTO Takashi1-0/+21
Used by runc. Signed-off-by: YAMAMOTO Takashi <yamamoto@midokura.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210531055019.10149-6-yamamoto@midokura.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-17linux-user/trace-events: fix minor typo in format stringAlex Bennée1-1/+1
Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210614144245.17660-1-alex.bennee@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-15linux-user: Disable static assert involving __SIGRTMAX if it is missingMichael Forney1-0/+2
This check is to ensure that the loop in signal_table_init() from SIGRTMIN to SIGRTMAX falls within the bounds of host_to_target_signal_table (_NSIG). However, it is not critical, since _NSIG is already defined to be the one larger than the largest signal supported by the system (as specified in the upcoming POSIX revision[0]). musl libc does not define __SIGRTMAX, so disabling this check when it is missing fixes one of the last remaining errors when building qemu. [0] https://www.austingroupbugs.net/view.php?id=741 Signed-off-by: Michael Forney <mforney@mforney.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210526190203.4255-1-mforney@mforney.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-15linux-user: Set CF_PARALLEL when mapping shared memoryRichard Henderson2-0/+26
Signal the translator to use host atomic instructions for guest operations, insofar as it is possible. This is the best we can do to allow the guest to interact atomically with other processes. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/121 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210612060828.695332-1-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-11tcg: Re-order tcg_region_init vs tcg_prologue_initRichard Henderson1-1/+0
Instead of delaying tcg_region_init until after tcg_prologue_init is complete, do tcg_region_init first and let tcg_prologue_init shrink the first region by the size of the generated prologue. Reviewed-by: Luis Pires <luis.pires@eldorado.org.br> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-05linux-user/syscall: Constify bitmask_transtbl fcntl/mmap flags_tlb[]Philippe Mathieu-Daudé1-2/+2
Keep bitmask_transtbl in .rodata by marking the arrays const. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210517055243.830491-1-f4bug@amsat.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-03softfloat: Introduce Floatx80RoundPrecRichard Henderson1-20/+21
Use an enumeration instead of raw 32/64/80 values. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-03linux-user/aarch64: Enable hwcap bits for bfloat16Richard Henderson1-0/+2
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525225817.400336-12-richard.henderson@linaro.org Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-02docs: fix references to docs/devel/tracing.rstStefano Garzarella1-1/+1
Commit e50caf4a5c ("tracing: convert documentation to rST") converted docs/devel/tracing.txt to docs/devel/tracing.rst. We still have several references to the old file, so let's fix them with the following command: sed -i s/tracing.txt/tracing.rst/ $(git grep -l docs/devel/tracing.txt) Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210517151702.109066-2-sgarzare@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-05-25linux-user/aarch64: Enable hwcap bits for sve2 and related extensionsRichard Henderson1-0/+10
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210525010358.152808-92-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-19target/ppc: Replace POWERPC_EXCP_BRANCH with DISAS_NORETURNRichard Henderson1-3/+0
The translation of branch instructions always results in exit from the TB. Remove the synthetic "exception" after no more uses. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20210517205025.3777947-4-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-05-19target/ppc: Replace POWERPC_EXCP_STOP with DISAS_EXIT_UPDATERichard Henderson1-3/+0
Remove the synthetic "exception" after no more uses. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br> Message-Id: <20210517205025.3777947-3-matheus.ferst@eldorado.org.br> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-05-18linux-user/elfload: add s390x core dumping supportIlya Leoshkevich1-0/+33
Provide the following definitions required by the common code: * ELF_NREG: with the value of sizeof(s390_regs) / sizeof(long). * target_elf_gregset_t: define it like all the other arches do. * elf_core_copy_regs(): similar to kernel's s390_regs_get(). * USE_ELF_CORE_DUMP. * ELF_EXEC_PAGESIZE. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20210413205608.22587-1-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-18linux-user/elfload: fix filling psinfo->pr_psargsIlya Leoshkevich1-2/+3
The current code dumps the memory between arg_start and arg_end, which contains the argv pointers. This results in the Core was generated by `<garbage>` message when opening the core file in GDB. This is because the code is supposed to dump the actual arg strings. Fix by using arg_strings and env_strings instead of arg_start and arg_end. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Message-Id: <20210413205814.22821-1-iii@linux.ibm.com> [lv: add missing braces] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
generated by cgit v1.1 at 2025-01-07 19:23:11 +0000