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2025-02-18linux-user: Move TARGET_SA_RESTORER out of generic/signal.hAndreas Schwab1-0/+2
SA_RESTORER and the associated sa_restorer field of struct sigaction are an obsolete feature, not expected to be used by future architectures. They are also absent on RISC-V, LoongArch, Hexagon and OpenRISC, but defined due to their use of generic/signal.h. This leads to corrupted data and out-of-bounds accesses. Move the definition of TARGET_SA_RESTORER out of generic/signal.h into the target_signal.h files that need it. Note that m68k has the sa_restorer field, but does not use it and does not define SA_RESTORER. Reported-by: Thomas Weißschuh <thomas@t-8ch.de> Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Thomas Weißschuh <thomas@t-8ch.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <mvmed060xc9.fsf@suse.de>
2024-12-20user: Move 'linux-user/cpu_loop-common.h' -> 'user/cpu_loop.h'Philippe Mathieu-Daudé1-1/+1
"linux-user/cpu_loop-common.h" is generic enough to be used by bsd-user, so rename it as "user/cpu_loop.h". Mechanical change running: $ sed -i -e 's,cpu_loop-common.h,user/cpu_loop.h,' \ $(git grep -l cpu_loop-common.h) Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20241212185341.2857-17-philmd@linaro.org>
2024-12-20user: Forward declare target_cpu_copy_regs structurePhilippe Mathieu-Daudé1-1/+1
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20241212185341.2857-16-philmd@linaro.org>
2024-09-27Merge tag 'pull-tcg-20240922' of https://gitlab.com/rth7680/qemu into stagingPeter Maydell1-4/+21
target/ppc: Fix lxvx/stxvx facility check linux-user: update syscall_nr.h to Linux v6.10 linux-user: update syscall.tbl to Linux v6.11 tcg: Fix iteration step in 32-bit gvec operation tcg: Propagate new TCGOp to add_as_label_use tcg/*: Do not expand cmp_vec, cmpsel_vec early tcg/optimize: Fold movcond with true and false values identical tcg/optimize: Optimize cmp_vec and cmpsel_vec tcg/optimize: Optimize bitsel_vec tcg/i386: Optimize cmpsel with constant 0 operand 3. tcg/i386: Implement cmp_vec with avx512 insns tcg/i386: Implement cmpsel_vec with avx512 insns tcg/i386: Implement vector TST{EQ,NE} for avx512 tcg/ppc: Implement cmpsel_vec and optimize with constant 0/-1 arguments tcg/s390x: Implement cmpsel_vec and optimize with constant 0/-1 arguments # -----BEGIN PGP SIGNATURE----- # # iQFQBAABCgA7FiEEekgeeIaLTbaoWgXAZN846K9+IV8FAmbwBsIdHHJpY2hhcmQu # aGVuZGVyc29uQGxpbmFyby5vcmcACgkQZN846K9+IV/bzwf40V8fsRhfc8u/k2Xw # +bXyfyX7ydgB+82YoO71+Wy15ntmYmbL/6O9kGuJXWX8HRDrAR8Js9zDgveysw5m # m/EG+XAbVjYhjaoaaz2nfr+5auQoos9NoCji3s3UJln6sCuZ2Enl0DTFluoHZfgr # /YVAghJ4dwH0hfzO9kmsKmJ9I19HugMMN4dNvEcjQyDDUhgGGjkUaRtGNxwuiwuf # ArL2XhFauXgloryDmpUKQ0BJJ0t8rdPlaRJ8dHqJUnJwav0TW3QVXbrs8gOkmmbg # 9plYTC9DlTguQobvapCDVjiGy/6yuSF/AUpcdQbTRtTi3BrzhTydfLlOtI64GtaQ # OBKd # =ID/g # -----END PGP SIGNATURE----- # gpg: Signature made Sun 22 Sep 2024 13:00:02 BST # gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F # gpg: issuer "richard.henderson@linaro.org" # gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full] # Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F * tag 'pull-tcg-20240922' of https://gitlab.com/rth7680/qemu: (31 commits) linux-user: update syscall.tbl to Linux v6.11 linux-user,loongarch: move to syscalltbl file linux-user,hexagon: move to syscalltbl file linux-user,riscv: move to syscalltbl file linux-user,openrisc: move to syscalltbl file linux-user,aarch64: move to syscalltbl file linux-user: update syscall.tbl to Linux v6.10 linux-user, mips: update syscall-args-o32.c.inc to Linux v6.10 linux-user: update syscall_nr.h to Linux v6.10 target/ppc: Fix lxvx/stxvx facility check tcg/s390x: Optimize cmpsel with constant 0/-1 arguments tcg/s390x: Implement cmpsel_vec tcg/ppc: Optimize cmpsel with constant 0/-1 arguments tcg/ppc: Implement cmpsel_vec tcg/i386: Implement vector TST{EQ,NE} for avx512 tcg/i386: Implement cmpsel_vec with avx512 insns tcg/i386: Add predicate parameters to tcg_out_evex_opc tcg/i386: Implement cmp_vec with avx512 insns tcg/i386: Optimize cmpsel with constant 0 operand 3. tcg/optimize: Optimize bitsel_vec ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-09-22linux-user: update syscall.tbl to Linux v6.10Laurent Vivier1-4/+21
Updated running scripts/update-syscalltbl.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-ID: <20240918074256.720617-4-laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-09-20license: Update deprecated SPDX tag GPL-2.0 to GPL-2.0-onlyPhilippe Mathieu-Daudé2-2/+2
The 'GPL-2.0' license identifier has been deprecated since license list version 3.0 [1] and replaced by the 'GPL-2.0-only' tag [2]. [1] https://spdx.org/licenses/GPL-2.0.html [2] https://spdx.org/licenses/GPL-2.0-only.html Mechanical patch running: $ sed -i -e s/GPL-2.0/GPL-2.0-only/ \ $(git grep -l 'SPDX-License-Identifier: GPL-2.0[ $]' \ | egrep -v '^linux-headers|^include/standard-headers') Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-03-13linux-user: Move tswap_siginfo out of target codeGustavo Romero1-1/+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>
2023-12-04sh4: Coding style: Remove tabsYihuan Pan1-102/+102
Replaces TABS with spaces to ensure have a consistent coding style with an indentation of 4 spaces in the SH4 subsystem. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/376 Signed-off-by: Yihuan Pan <xun794@gmail.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20231124044554.513752-1-xun794@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-10-18linux-user/sh4: Fix crashes on signal deliveryMikulas Patocka1-0/+8
sh4 uses gUSA (general UserSpace Atomicity) to provide atomicity on CPUs that don't have atomic instructions. A gUSA region that adds 1 to an atomic variable stored in @R2 looks like this: 4004b6: 03 c7 mova 4004c4 <gusa+0x10>,r0 4004b8: f3 61 mov r15,r1 4004ba: 09 00 nop 4004bc: fa ef mov #-6,r15 4004be: 22 63 mov.l @r2,r3 4004c0: 01 73 add #1,r3 4004c2: 32 22 mov.l r3,@r2 4004c4: 13 6f mov r1,r15 R0 contains a pointer to the end of the gUSA region R1 contains the saved stack pointer R15 contains negative length of the gUSA region When this region is interrupted by a signal, the kernel detects if R15 >= -128U. If yes, the kernel rolls back PC to the beginning of the region and restores SP by copying R1 to R15. The problem happens if we are interrupted by a signal at address 4004c4. R15 still holds the value -6, but the atomic value was already written by an instruction at address 4004c2. In this situation we can't undo the gUSA. The function unwind_gusa does nothing, the signal handler attempts to push a signal frame to the address -6 and crashes. This patch fixes it, so that if we are interrupted at the last instruction in a gUSA region, we copy R1 to R15 to restore the correct stack pointer and avoid crashing. There's another bug: if we are interrupted in a delay slot, we save the address of the instruction in the delay slot. We must save the address of the previous instruction. Cc: qemu-stable@nongnu.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Reviewed-by: Yoshinori Sato <ysato@users.sourcefoege.jp> Message-Id: <b16389f7-6c62-70b7-59b3-87533c0bcc@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-01linux-user: Split out cpu/target_proc.hRichard Henderson1-0/+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>
2023-08-08linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.hRichard Henderson1-0/+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>
2023-08-08linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.hRichard Henderson1-0/+4
Provide default values that are as close as possible to the values used by the guest's kernel. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-02-03linux-user: move target_flat.h to target subdirsMike Frysinger1-0/+1
This makes target_flat.h behave like every other target_xxx.h header. It also makes it actually work -- while the current header says adding a header to the target subdir overrides the common one, it doesn't. This is for two reasons: * meson.build adds -Ilinux-user before -Ilinux-user/$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>
2022-10-04target/sh4: Fix TB_FLAG_UNALIGNRichard Henderson1-3/+3
The value previously chosen overlaps GUSA_MASK. Rename all DELAY_SLOT_* and GUSA_* defines to emphasize that they are included in TB_FLAGs. Add aliases for the FPSCR and SR bits that are included in TB_FLAGS, so that we don't accidentally reassign those bits. Fixes: 4da06fb3062 ("target/sh4: Implement prctl_unalign_sigbus") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/856 Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-27linux-user: Provide MADV_* definitionsIlya Leoshkevich1-0/+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>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau1-1/+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>
2022-03-31linux-user/sh4/termbits: Silence warning about TIOCSER_TEMT double definitionThomas Huth1-1/+1
Seen while compiling on Alpine: In file included from ../linux-user/strace.c:17: In file included from ../linux-user/qemu.h:11: In file included from ../linux-user/syscall_defs.h:1247: ../linux-user/sh4/termbits.h:276:10: warning: 'TIOCSER_TEMT' macro redefined [-Wmacro-redefined] # define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ ^ /usr/include/sys/ioctl.h:50:9: note: previous definition is here #define TIOCSER_TEMT 1 ^ 1 warning generated. Add the TARGET_ prefix here, too, like we do it on the other architectures. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> Message-Id: <20220330134302.979686-1-thuth@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-02-01linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.hSerge Belyshev1-0/+1
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>
2022-01-11linux-user: Move target_struct.h generic definitions to generic/Richard Henderson1-58/+1
Most targets share the same generic ipc structure definitions. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220107042600.149852-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/sh4: Use force_sig_faultRichard Henderson1-5/+1
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: <20220107213243.212806-23-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06target/sh4: Implement prctl_unalign_sigbusRichard Henderson1-1/+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. The Linux kernel does not handle all memory operations: no floating-point and no MAC. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20211227150127.2659293-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: Split out do_prctl and subroutinesRichard Henderson1-0/+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>
2022-01-06linux-user: target_syscall.h remove definition TARGET_MINSIGSTKSZSong Gao1-1/+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>
2022-01-06linux-user: Move target_signal.h generic definitions to generic/signal.hSong Gao1-18/+0
No code change Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Song Gao <gaosong@loongson.cn> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1637893388-10282-2-git-send-email-gaosong@loongson.cn> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-12-19linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURNRichard Henderson2-5/+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>
2021-12-19linux-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYSRichard Henderson1-1/+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>
2021-11-02target/sh4: Make sh4_cpu_tlb_fill sysemu onlyRichard Henderson1-8/+0
The fallback code in cpu_loop_exit_sigsegv is sufficient for sh4 linux-user. Remove the code from cpu_loop that raised SIGSEGV. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-01linux-user/sh4: Implement setup_sigtrampRichard Henderson2-18/+24
Create and record the two signal trampolines. Use them when the guest does not use SA_RESTORER. Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210929130553.121567-23-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-13linux-user: Split linux-user internals out of qemu.hPeter Maydell2-0/+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>
2021-09-13linux-user: Split signal-related prototypes into signal-common.hPeter Maydell1-0/+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>
2021-07-13linux-user: update syscall.tbl to Linux v5.13Laurent Vivier1-0/+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>
2021-07-12linux-user: Extract target errno to 'target_errno_defs.h'Philippe Mathieu-Daudé1-0/+7
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>
2021-05-15linux-user: Pass CPUArchState to target_restore_altstackRichard Henderson1-1/+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>
2021-05-15linux-user: Use target_restore_altstack in all sigreturnRichard Henderson1-6/+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>
2021-03-06accel/tcg: Precompute curr_cflags into cpu->tcg_cflagsRichard Henderson1-3/+5
The primary motivation is to remove a dozen insns along the fast-path in tb_lookup. As a byproduct, this allows us to completely remove parallel_cpus. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-11-11linux-user: Correct definition of stack_tLemonBoy1-3/+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>
2020-10-26linux-user: update syscall.tbl to Linux 5.9-rc7Laurent Vivier1-1/+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>
2020-08-27linux-user: Add missing termbits types and values definitionsFilip Bozuta1-6/+13
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>
2020-08-27linux-user: Add strace support for printing arguments of syscalls used to ↵Filip Bozuta1-2/+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>
2020-08-21meson: linux-userMarc-André Lureau2-5/+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>
2020-03-20linux-user: update syscall.tbl from linux 0bf999f9c5e7Laurent Vivier1-0/+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>
2020-03-20linux-user, sh4: add syscall table generation supportLaurent Vivier4-441/+477
Copy syscall.tbl and syscallhdr.sh from linux/arch/sh/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: <20200310103403.3284090-7-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-02-17linux-user: sh4: Update syscall numbers to kernel 5.5 levelAleksandar Markovic1-0/+48
Update sh4 syscall numbers based on Linux kernel v5.5. CC: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <1581596954-2305-7-git-send-email-aleksandar.markovic@rt-rk.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-11-06linux-user: Introduce cpu_clone_regs_parentRichard Henderson1-0/+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>
2019-11-06linux-user: Rename cpu_clone_regs to cpu_clone_regs_childRichard Henderson1-1/+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>
2019-06-12Supply missing header guardsMarkus Armbruster2-0/+10
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190604181618.19980-5-armbru@redhat.com>
2019-06-12Include qemu-common.h exactly where neededMarkus Armbruster1-0/+1
No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
2019-06-10target/sh4: Use env_cpu, env_archcpuRichard Henderson1-1/+1
Cleanup in the boilerplate that each target must define. Replace sh_env_get_cpu with env_archcpu. The combination CPU(sh_env_get_cpu) should have used ENV_GET_CPU to begin; use env_cpu now. Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-05-08target/sh4: Fix LGPL information in the file headersThomas Huth2-2/+2
It's either "GNU *Library* General Public License version 2" or "GNU Lesser General Public License version *2.1*", but there was no "version 2.0" of the "Lesser" license. So assume that version 2.1 is meant here. Message-Id: <1550073530-4138-1-git-send-email-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2019-04-18qom/cpu: Simplify how CPUClass:cpu_dump_state() printsMarkus Armbruster1-1/+1
CPUClass method dump_statistics() takes an fprintf()-like callback and a FILE * to pass to it. Most callers pass fprintf() and stderr. log_cpu_state() passes fprintf() and qemu_log_file. hmp_info_registers() passes monitor_fprintf() and the current monitor cast to FILE *. monitor_fprintf() casts it right back, and is otherwise identical to monitor_printf(). The callback gets passed around a lot, which is tiresome. The type-punning around monitor_fprintf() is ugly. Drop the callback, and call qemu_fprintf() instead. Also gets rid of the type-punning, since qemu_fprintf() takes NULL instead of the current monitor cast to FILE *. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190417191805.28198-15-armbru@redhat.com>
generated by cgit v1.1 at 2025-08-03 18:24:44 +0000