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* linux-user: Provide MADV_* definitionsIlya Leoshkevich2022-09-271-0/+1
| | | | | | | | | | | 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/+0Star
| | | | | | 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/+17
| | | | | | 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/sparc: Use force_sig_faultRichard Henderson2022-01-111-12/+2Star
| | | | | | | | | | Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Fill in the missing PC for SIGTRAP. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-24-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/+0Star
| | | | | | | | | 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/+0Star
| | | | | | | | | | | | 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 Henderson2021-12-202-5/+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 Henderson2021-12-201-1/+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/sparc: Make sparc_cpu_tlb_fill sysemu onlyRichard Henderson2021-11-021-25/+0Star
| | | | | | | | | | | | | The fallback code in cpu_loop_exit_sigsegv is sufficient for sparc linux-user. This makes all of the code in mmu_helper.c sysemu only, so remove the ifdefs and move the file to sparc_softmmu_ss. Remove the code from cpu_loop that handled TT_DFAULT and TT_TFAULT. Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
* linux-user/sparc: Implement setup_sigtrampRichard Henderson2021-10-012-14/+30
| | | | | | | | | | | | Create and record the two signal trampolines. Use them when the guest does not use SA_RESTORER. Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> 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> Message-Id: <20210929130553.121567-24-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 Vivier2021-07-131-6/+13
| | | | | | | | 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: Extract target errno to 'target_errno_defs.h'Philippe Mathieu-Daudé2021-07-122-3/+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/sparc: Rename target_errno.h -> target_errno_defs.hPhilippe Mathieu-Daudé2021-07-122-3/+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>
* linux-user/sparc: Implement sparc64 rt signalsRichard Henderson2021-05-152-1/+28
| | | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-25-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Implement sparc32 rt signalsRichard Henderson2021-05-151-4/+122
| | | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-24-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Add 64-bit support to fpu save/restoreRichard Henderson2021-05-151-0/+36
| | | | | | | | | The shape of the kernel's __siginfo_fpu_t is dependent on the cpu type, not the abi. Which is weird, but there ya go. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-23-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Minor corrections to do_sigreturnRichard Henderson2021-05-151-8/+11
| | | | | | | | | | | Check that the input sp is 16 byte aligned, not 4. Do that before the lock_user_struct check. Validate the saved sp is 8 byte aligned. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-22-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Clean up setup_frameRichard Henderson2021-05-151-19/+6Star
| | | | | | | | | Clean up a goto label with a single use. Remove #if 0. Remove useless parentheses. Fold constants into __put_user. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-21-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Add rwin_save to signal frameRichard Henderson2021-05-151-0/+8
| | | | | | | | Stub it out to zero, but at least include it. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-20-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Save and restore fpu in signal frameRichard Henderson2021-05-151-33/+51
| | | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-19-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Clean up get_sigframeRichard Henderson2021-05-151-6/+7
| | | | | | | | Remove inline; fix spacing and comment format. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-18-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Split out save_reg_winRichard Henderson2021-05-151-6/+13
| | | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-17-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Use target_pt_regsRichard Henderson2021-05-151-58/+65
| | | | | | | | | | | | | | Replace __siginfo_t with target_pt_regs, and move si_mask into target_signal_frame directly. Extract save/restore functions for target_pt_regs. Adjust for sparc64 tstate. Use proper get/put functions for psr. Turns out we were already writing to si_mask twice, so no need to handle that in the new functions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Fix the stackframe structureRichard Henderson2021-05-151-17/+21
| | | | | | | | | | Move target_reg_window up and use it. Fold structptr and xxargs into xargs -- the use of a host pointer was incorrect anyway. Rename the structure to target_stackf for consistency. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-15-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Remove target_rt_signal_frame as unusedRichard Henderson2021-05-151-11/+0Star
| | | | | | | | It's wrong anyway. Remove it for now. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-14-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Remove target_sigcontext as unusedRichard Henderson2021-05-151-28/+0Star
| | | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-13-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Merge sparc64 target_structs.hRichard Henderson2021-05-151-21/+13Star
| | | | | | Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Merge sparc64 target_syscall.hRichard Henderson2021-05-151-11/+31
| | | | | | | | | There are only a few differences in sparc32 vs sparc64. This fixes target_shmlba for sparc32plus, which is v9. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Include TARGET_STACK_BIAS in get_sp_from_cpustateRichard Henderson2021-05-152-3/+8
| | | | | | | | | | Move TARGET_STACK_BIAS from signal.c. Generic code cares about the logical stack pointer, not the physical one that has a bias applied for sparc64. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210426025334.1168495-6-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/sparc: Handle tstate in sparc64_get/set_context()Peter Maydell2020-12-181-4/+3Star
| | | | | | | | | | | | | | | | | | Correctly implement save/restore of the tstate field in sparc64_get_context() and sparc64_set_context(): * Don't use the CWP value from the guest in set_context * Construct and save a tstate value rather than leaving it as zero in get_context To do this we factor out the "calculate TSTATE value from CPU state" code from sparc_cpu_do_interrupt() into its own sparc64_tstate() function; that in turn requires us to move some of the function prototypes out from inside a CPU_NO_IO_DEFS ifdef guard. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201106152738.26026-5-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Don't restore %g7 in sparc64_set_context()Peter Maydell2020-12-181-1/+1
| | | | | | | | | | The kernel does not restore the g7 register in sparc64_set_context(); neither should we. (We still save it in sparc64_get_context().) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201106152738.26026-4-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Remove unneeded checks of 'err' from sparc64_get_context()Peter Maydell2020-12-181-4/+0Star
| | | | | | | | | | | | | | | Unlike the kernel macros, our __get_user() and __put_user() do not return a failure code. Kernel code typically has a style of err |= __get_user(...); err |= __get_user(...); and then checking err at the end. In sparc64_get_context() our version of the code dropped the accumulating into err but left the "if (err) goto do_sigsegv" checks, which will never be taken. Delete unnecessary if()s. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201106152738.26026-3-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Correct sparc64_get/set_context() FPU handlingPeter Maydell2020-12-181-31/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The handling of the FPU state in sparc64_get_context() and sparc64_set_context() is not the same as what the kernel actually does: we unconditionally read and write the FP registers and the FSR, GSR and FPRS, but the kernel logic is more complicated: * in get_context the kernel has code for saving FPU registers, but it is hidden inside an "if (fenab) condition and the fenab flag is always set to 0 (inside an "#if 1" which has been in the kernel for over 15 years). So the effect is that the FPU state part is always written as zeroes. * in set_context the kernel looks at the fenab field in the structure from the guest, and only restores the state if it is set; it also looks at the structure's FPRS to see whether either the upper or lower or both halves of the register file have valid data. Bring our implementations into line with the kernel: * in get_context: - clear the entire target_ucontext at the top of the function (as the kernel does) - then don't write the FPU state, so those fields remain zero - this fixes Coverity issue CID 1432305 by deleting the code it was complaining about * in set_context: - check the fenab and the fpsr to decide which parts of the FPU data to restore, if any - instead of setting the FPU registers by doing two 32-bit loads and filling in the .upper and .lower parts of the CPU_Double union separately, just do a 64-bit load of the whole register at once. This fixes Coverity issue CID 1432303 because we now access the dregs[] part of the mcfpu_fregs union rather than the sregs[] part (which is not large enough to actually cover the whole of the data, so we were accessing off the end of sregs[]) We change both functions in a single commit to avoid potentially breaking bisection. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201106152738.26026-2-peter.maydell@linaro.org> [lv: fix FPRS_DU loop s/31/32/] 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_tLemonBoy2020-11-111-3/+3
| | | | | | | | | | | | | | | | | | | | | | | 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/sparc: Don't zero high half of PC, NPC, PSR in sigreturnPeter Maydell2020-11-101-1/+1
| | | | | | | | | | | | | | | | | | | | The function do_sigreturn() tries to store the PC, NPC and PSR in uint32_t local variables, which implicitly drops the high half of these fields for 64-bit guests. The usual effect was that a guest which used signals would crash on return from a signal unless it was lucky enough to take it while the PC was in the low 4GB of the address space. In particular, Debian /bin/dash and /bin/bash would segfault after executing external commands. Use abi_ulong, which is the type these fields all have in the __siginfo_t struct. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201105212314.9628-4-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Correct set/get_context handling of fp and i7Peter Maydell2020-11-101-25/+22Star
| | | | | | | | | | | | | | | | | | | | | | | | | Because QEMU's user-mode emulation just directly accesses guest CPU state, for SPARC the guest register window state is not the same in the sparc64_get_context() and sparc64_set_context() functions as it is for the real kernel's versions of those functions. Specifically, for the kernel it has saved the user space state such that the O* registers go into a pt_regs struct as UREG_I*, and the I* registers have been spilled onto the userspace stack. For QEMU, we haven't done that, so the guest's O* registers are still in WREG_O* and the I* registers in WREG_I*. The code was already accessing the O* registers correctly for QEMU, but had copied the kernel code for accessing the I* registers off the userspace stack. Replace this with direct accesses to fp and i7 in the CPU state, and add a comment explaining why we differ from the kernel code here. This fix is sufficient to get bash to a shell prompt. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201105212314.9628-3-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Fix errors in target_ucontext structuresPeter Maydell2020-11-101-4/+9
| | | | | | | | | | | | | | | | | | | | | | The various structs that make up the SPARC target_ucontext had some errors: * target structures must not include fields which are host pointers, which might be the wrong size. These should be abi_ulong instead * because we don't have the 'long double' part of the mcfpu_fregs union in our version of the target_mc_fpu struct, we need to manually force it to be 16-aligned In particular, the lack of 16-alignment caused sparc64_get_context() and sparc64_set_context() to read and write all the registers at the wrong offset, which triggered a guest glibc stack check in siglongjmp: *** longjmp causes uninitialized stack frame ***: terminated when trying to run bash. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20201105212314.9628-2-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: update syscall.tbl to Linux 5.9-rc7Laurent Vivier2020-10-261-3/+5
| | | | | | | | | 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 Bozuta2020-08-271-6/+12
| | | | | | | | | | | | | | | | 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/sparc64: Fix the handling of window spill trapGiuseppe Musacchio2020-06-291-1/+5
| | | | | | | | | | Fix the handling of window spill traps by keeping cansave into account when calculating the new CWP. Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200625091204.3186186-3-laurent@vivier.eu>
* linux-user: update syscall.tbl from linux 0bf999f9c5e7Laurent Vivier2020-03-201-0/+2
| | | | | | | | | Run scripts/update-syscalltbl.sh with linux commit 0bf999f9c5e7 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-20-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user, sparc, sparc64: add syscall table generation supportLaurent Vivier2020-03-204-363/+520
| | | | | | | | | | Copy syscall.tbl and syscallhdr.sh from linux/arch/sparc/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-13-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user/sparc: Fix cpu_clone_regs_*Richard Henderson2019-11-061-7/+36
| | | | | | | | | | | We failed to set the secondary return value in %o1 we failed to advance the PC past the syscall, we failed to adjust regwptr into the new structure, we stored the stack pointer into the wrong register. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20191106113318.10226-12-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-11-21 18:35:58 +0100