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* linux-user: Move tswap_siginfo out of target codeGustavo Romero2024-03-131-1/+1
| | | | | | | | | | | Move tswap_siginfo from target code to handle_pending_signal. This will allow some cleanups and having the siginfo ready to be used in gdbstub. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Suggested-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240309030901.1726211-3-gustavo.romero@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
* target/alpha: Remove fallback to ev67 cpu classGavin Shan2024-01-051-1/+1
| | | | | | | | | | | | | 'ev67' CPU class will be returned to match everything, which makes no sense as mentioned in the comments. Remove the logic to fall back to 'ev67' CPU class to match everything. Signed-off-by: Gavin Shan <gshan@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231114235628.534334-2-gshan@redhat.com> [PMD: Reword subject, replace 'any' -> 'ev67' on linux-user] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
* linux-user: Emulate /proc/cpuinfo for AlphaHelge Deller2023-09-011-1/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add emulation for /proc/cpuinfo for the alpha architecture. alpha output example: (alpha-chroot)root@p100:/# cat /proc/cpuinfo cpu : Alpha cpu model : ev67 cpu variation : 0 cpu revision : 0 cpu serial number : JA00000000 system type : QEMU system variation : QEMU_v8.0.92 system revision : 0 system serial number : AY00000000 cycle frequency [Hz] : 250000000 timer frequency [Hz] : 250.00 page size [bytes] : 8192 phys. address bits : 44 max. addr. space # : 255 BogoMIPS : 2500.00 platform string : AlphaServer QEMU user-mode VM cpus detected : 8 cpus active : 4 cpu active mask : 0000000000000095 L1 Icache : n/a L1 Dcache : n/a L2 cache : n/a L3 cache : n/a Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230803214450.647040-4-deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Split out cpu/target_proc.hRichard Henderson2023-09-011-0/+1
| | | | | | | | | | Move the various open_cpuinfo functions into new files. Move the m68k open_hardware function as well. All other guest architectures get a boilerplate empty file. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.hRichard Henderson2023-08-081-0/+3
| | | | | | | | | Copy each guest kernel's default value, then bound it against reserved_va or the host address space. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.hRichard Henderson2023-08-081-0/+8
| | | | | | | | | | | Provide default values that are as close as possible to the values used by the guest's kernel. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Split TARGET_MAP_* out of syscall_defs.hRichard Henderson2023-07-151-0/+13
| | | | | | | | Move the values into the per-target target_mman.h headers Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-7-richard.henderson@linaro.org>
* linux-user: Add translation for argument of msync()Helge Deller2023-03-101-0/+4
| | | | | | | | | | | | | | | | | 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>
* linux-user: Provide MADV_* definitionsIlya Leoshkevich2022-09-271-0/+8
| | | | | | | | | | | Provide MADV_* definitions using target_mman.h header, similar to what kernel does. Most architectures use the same values, with the exception of alpha and hppa. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220906000839.1672934-2-iii@linux.ibm.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Remove qemu-common.h include from most unitsMarc-André Lureau2022-04-061-1/+0
| | | | | | Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.hSerge Belyshev2022-02-011-0/+21
| | | | | | Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru> Message-Id: <87ee4ql3yk.fsf_-_@depni.sinp.msu.ru> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/alpha: Use force_sig_faultRichard Henderson2022-01-111-42/+19
| | | | | | | | | | Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/alpha: Set FPE_FLTUNK for gentrap ROPRANDRichard Henderson2022-01-111-1/+1
| | | | | | | | | This si_code was changed in 4cc13e4f6d441, for linux 4.17. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/alpha: Set TRAP_UNK for bugchk and unknown gentrapRichard Henderson2022-01-111-2/+2
| | | | | | | | | These si_codes were changed in 535906c684fca, for linux 4.17. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* target/alpha: Implement prctl_unalign_sigbusRichard Henderson2022-01-061-1/+1
| | | | | | | | | | | Leave TARGET_ALIGNED_ONLY set, but use the new CPUState flag to set MO_UNALN for the instructions that the kernel handles in the unaligned trap. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20211227150127.2659293-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Split out do_prctl and subroutinesRichard Henderson2022-01-061-0/+1
| | | | | | | | | | | | | | | | Since the prctl constants are supposed to be generic, supply any that are not provided by the host. Split out subroutines for PR_GET_FP_MODE, PR_SET_FP_MODE, PR_GET_VL, PR_SET_VL, PR_RESET_KEYS, PR_SET_TAGGED_ADDR_CTRL, PR_GET_TAGGED_ADDR_CTRL. Return EINVAL for guests that do not support these options rather than pass them on to the host. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211227150127.2659293-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Remove TARGET_SIGSTKSZSong Gao2022-01-061-1/+0
| | | | | | | | | TARGET_SIGSTKSZ is not used, we should remove it. Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1637893388-10282-4-git-send-email-gaosong@loongson.cn> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: target_syscall.h remove definition TARGET_MINSIGSTKSZSong Gao2022-01-061-1/+0
| | | | | | | | | | | | TARGET_MINSIGSTKSZ has been defined in generic/signal.h or target_signal.h, We don't need to define it again. Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1637893388-10282-3-git-send-email-gaosong@loongson.cn> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURNRichard Henderson2021-12-192-5/+5
| | | | | | | | This value is fully internal to qemu, and so is not a TARGET define. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYSRichard Henderson2021-12-191-1/+1
| | | | | | | | | This value is fully internal to qemu, and so is not a TARGET define. We use this as an extra marker for both host and target errno. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* target/alpha: Implement alpha_cpu_record_sigbusRichard Henderson2021-11-021-7/+0
| | | | | | | | | | Record trap_arg{0,1,2} for the linux-user signal frame. Raise SIGBUS directly from cpu_loop_exit_sigbus, which means we can remove the code for EXCP_UNALIGN in cpu_loop. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* target/alpha: Implement alpha_cpu_record_sigsegvRichard Henderson2021-11-021-8/+0
| | | | | | | | | | | | | | Record trap_arg{0,1,2} for the linux-user signal frame. Fill in the stores to trap_arg{1,2} that were missing from the previous user-only alpha_cpu_tlb_fill function. Use maperr to simplify computation of trap_arg1. Remove the code for EXCP_MMFAULT from cpu_loop, as that part is now handled by cpu_loop_exit_sigsegv. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user/alpha: Implement setup_sigtrampRichard Henderson2021-10-012-14/+21
| | | | | | | | | | Create and record the two signal trampolines. Use them when the guest does not use ka_restorer. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210929130553.121567-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Split linux-user internals out of qemu.hPeter Maydell2021-09-132-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | qemu.h is included in various non-linux-user files (which mostly want the TaskState struct and the functions for doing usermode access to guest addresses like lock_user(), unlock_user(), get_user*(), etc). Split out the parts that are only used in linux-user itself into a new user-internals.h. This leaves qemu.h with basically three things: * the definition of the TaskState struct * the user-access functions and macros * do_brk() all of which are needed by code outside linux-user that includes qemu.h. The addition of all the extra #include lines was done with sed -i '/include.*qemu\.h/a #include "user-internals.h"' $(git grep -l 'include.*qemu\.h' linux-user) (and then undoing the change to fpa11.h). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210908154405.15417-8-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Split signal-related prototypes into signal-common.hPeter Maydell2021-09-131-0/+1
| | | | | | | | | | | Split the signal related prototypes into the existing header file signal-common.h, and include it in those places that now require it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210908154405.15417-4-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: update syscall.tbl to Linux v5.13Laurent Vivier2021-07-131-0/+7
| | | | | | | | 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>
* linux-user/alpha: Move errno definitions to 'target_errno_defs.h'Philippe Mathieu-Daudé2021-07-122-194/+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>
* linux-user: Extract target errno to 'target_errno_defs.h'Philippe Mathieu-Daudé2021-07-121-0/+6
| | | | | | | | | | | | | | | 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>
* linux-user/alpha: Remove hardcoded tabs (code style)Philippe Mathieu-Daudé2021-07-071-99/+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>
* linux-user/alpha: Handle TARGET_EWOULDBLOCK as TARGET_EAGAINPhilippe Mathieu-Daudé2021-07-071-0/+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>
* linux-user/alpha: Define TARGET_ARCH_HAS_KA_RESTORERRichard Henderson2021-05-181-0/+1
| | | | | | | | | | | | This means that we can share the TARGET_NR_rt_sigaction code, and the target_rt_sigaction structure is unused. Untangling the ifdefs so that target_sigaction can be shared will wait until the next patch. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/alpha: Rename the sigaction restorer fieldRichard Henderson2021-05-181-4/+4
| | | | | | | | | | | Use ka_restorer, in line with TARGET_ARCH_HAS_KA_RESTORER vs TARGET_ARCH_HAS_SA_RESTORER, since Alpha passes this field as a syscall argument. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/alpha: Fix rt sigframe returnRichard Henderson2021-05-181-1/+1
| | | | | | | | | | | We incorrectly used the offset of the non-rt sigframe. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20210422230227.314751-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Pass CPUArchState to target_restore_altstackRichard Henderson2021-05-151-1/+1
| | | | | | | | | | | | | In most cases we were already passing get_sp_from_cpustate directly to the function. In other cases, we were passing a local variable which already contained the same value. In the rest of the cases, we were passing the stack pointer out of env directly. Reviewed by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Use target_restore_altstack in all sigreturnRichard Henderson2021-05-151-5/+1
| | | | | | | | | | | | Note that target_restore_altstack uses the host memory pointer that we have already verified, so TARGET_EFAULT is not a possible return value. Note that using -EFAULT was a bug. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: target: signal: Support TARGET_SS_AUTODISARMChen Gang2021-02-131-0/+6
| | | | | | | | | Add definitions to pass building. Signed-off-by: Chen Gang <chengang@emindsoft.com.cn> Message-Id: <20201008043105.21058-1-chengang@emindsoft.com.cn> [lv: added the definitions in linux-user/generic/signal.h too] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Add missing TARGET___O_TMPFILE for hppa and alphaHelge Deller2021-02-131-0/+1
| | | | | | | | | | | | | | | | The hppa and alpha targets miss the #define of the TARGET___O_TMPFILE and as such fail to run a trivial symlink command like ln -s /bin/bash /tmp which results in an -EINVAL return code. Adding the define fixes the problem. Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210201155922.GA18291@ls3530.fritz.box> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Remove obsolete F_SHLCK and F_EXLCK translationMichael Forney2021-01-211-2/+0
| | | | | | | | | | | | | | | | | These lock types are unsupported by Linux since v2.2[0][1] and always return EINVAL (except on SPARC up until v2.6, which just warned). musl libc does not define these constants, so just remove them from the translation cases. [0] https://github.com/mpe/linux-fullhistory/blob/v2.2.0/fs/locks.c#L322-L324 [1] https://github.com/mpe/linux-fullhistory/blob/v2.2.0/fs/locks.c#L429-L445 Signed-off-by: Michael Forney <mforney@mforney.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20210114223602.9004-1-mforney@mforney.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux user: Fix Lesser GPL version numberChetan Pant2020-11-152-2/+2
| | | | | | | | | | | | There is no "version 2" of the "Lesser" General Public License. It is either "GPL version 2.0" or "Lesser GPL version 2.1". This patch replaces all occurrences of "Lesser GPL version 2" with "Lesser GPL version 2.1" in comment section. Signed-off-by: Chetan Pant <chetan4windows@gmail.com> Message-Id: <20201023122455.19417-1-chetan4windows@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* linux-user: Correct definition of stack_tLemonBoy2020-11-111-2/+1
| | | | | | | | | | | | | | | | | | | | | | | Some platforms used the wrong definition of stack_t where the flags and size fields were swapped or where the flags field had type ulong instead of int. Due to the presence of padding space in the structure and the prevalence of little-endian machines this problem went unnoticed for a long time. The type definitions have been cross-checked with the ones defined in the Linux kernel v5.9, plus some older versions for a few architecture that have been removed and Xilinx's kernel fork for NiosII [1]. The bsd-user headers remain unchanged as I don't know if they are wrong or not. [1] https://github.com/Xilinx/linux-xlnx/blob/master/arch/nios2/include/uapi/asm/signal.h Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <e9d47692-ee92-009f-6007-0abc3f502b97@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: update syscall.tbl to Linux 5.9-rc7Laurent Vivier2020-10-261-1/+3
| | | | | | | | | Updated running scripts/update-syscalltbl.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200930003033.554124-4-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Add missing termbits types and values definitionsFilip Bozuta2020-08-271-0/+1
| | | | | | | | | | | | | | | | This patch introduces missing target types ('target_flag_t', 'target_cc_t', 'target_speed_t') in a few 'termibts.h' header files. Also, two missing values ('TARGET_IUTF8' and 'TARGET_EXTPROC') were also added. These values were also added in file 'syscall.c' in bitmask tables 'iflag_tbl[]' and 'lflag_tbl[]' which are used to convert values of 'struct termios' between target and host. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Max Filippov <jcmvbkbc@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200723210233.349690-3-Filip.Bozuta@syrmia.com> [lv: keep TARGET_NCCS definition in xtensa/termbits.h] Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Add strace support for printing arguments of syscalls used to ↵Filip Bozuta2020-08-271-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lock and unlock memory This patch implements strace argument printing functionality for following syscalls: * mlock, munlock, mlockall, munlockall - lock and unlock memory int mlock(const void *addr, size_t len) int munlock(const void *addr, size_t len) int mlockall(int flags) int munlockall(void) man page: https://man7.org/linux/man-pages/man2/mlock.2.html Implementation notes: Syscall mlockall() takes an argument that is composed of predefined values which represent flags that determine the type of locking operation that is to be performed. For that reason, a printing function "print_mlockall" was stated in file "strace.list". This printing function uses an already existing function "print_flags()" to print the "flags" argument. These flags are stated inside an array "mlockall_flags" that contains values of type "struct flags". These values are instantiated using an existing macro "FLAG_TARGET()" that crates aproppriate target flag values based on those defined in files '/target_syscall.h'. These target flag values were changed from "TARGET_MLOCKALL_MCL*" to "TARGET_MCL_*" so that they can be aproppriately set and recognised in "strace.c" with "FLAG_TARGET()". Value for "MCL_ONFAULT" was added in this patch. This value was also added in "syscall.c" in function "target_to_host_mlockall_arg()". Because this flag value was added in kernel version 4.4, it is enwrapped in an #ifdef directive (both in "syscall.c" and in "strace.c") as to support older kernel versions. The other syscalls have only primitive argument types, so the rest of the implementation was handled by stating an appropriate printing format in file "strace.list". Syscall mlock2() is not implemented in "syscall.c" and thus it's argument printing is not implemented in this patch. Signed-off-by: Filip Bozuta <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200811164553.27713-4-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* meson: linux-userMarc-André Lureau2020-08-212-5/+5
| | | | | | | | | | | | | | The most interesting or most complicated part here is the syscall_nr.h generators. In order to keep the generation logic all in meson.build, I am adding to config_target the name of the .tbl file, and making the generated file syscall<SUFFIX>_nr.h for input file syscall<SUFFIX>.tbl. For architectures where the input file is not named syscall_nr.tbl, syscall_nr.h has to be a source file; it's just a forwarder for x86 (i386/x86_64), while for MIPS64 it chooses between N32 and N64 ABIs. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* linux-user, alpha: add syscall table generation supportLaurent Vivier2020-03-204-492/+516
| | | | | | | | | | | Copy syscall.tbl and syscallhdr.sh from linux/arch/alpha/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-3-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: alpha: Update syscall numbers to kernel 5.5 levelAleksandar Markovic2020-02-171-0/+35
| | | | | | | | | | Update alpha syscall numbers based on Linux kernel v5.5. CC: Richard Henderson <rth@twiddle.net> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1581596954-2305-2-git-send-email-aleksandar.markovic@rt-rk.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/alpha: Set r20 secondary return valueRichard Henderson2019-11-061-0/+9
| | | | | | | | | | This value is not, as far as I know, used by any linux software, but it is set by the kernel and is part of the ABI. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20191106113318.10226-13-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Introduce cpu_clone_regs_parentRichard Henderson2019-11-061-0/+4
| | | | | | | | | | | | We will need a target-specific hook for adjusting registers in the parent during clone. Add an empty inline function for each target, and invoke it from the proper places. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20191106113318.10226-11-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Rename cpu_clone_regs to cpu_clone_regs_childRichard Henderson2019-11-061-1/+2
| | | | | | | | | | | | | | | We will need a target-specific hook for adjusting registers in the parent during clone. To avoid confusion, rename the one we have to make it clear it affects the child. At the same time, pass in the flags from the clone syscall. We will need them for correct behaviour for Sparc. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20191106113318.10226-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* Supply missing header guardsMarkus Armbruster2019-06-122-0/+10
| | | | | Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190604181618.19980-5-armbru@redhat.com>