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5 dayslinux-user/aarch64: Reduce vdso alignment to 4kRichard Henderson
Reduce vdso alignment to minimum page size. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-09-22linux-user,aarch64: move to syscalltbl fileLaurent Vivier
Since kernel v6.11 aarch64 has moved from syscall_nr.h file to syscall_64.tbl (See e632bca07c8e ("arm64: generate 64-bit syscall.tbl")) Update linux-user scripts to be able to retrieve syscall numbers from linux syscall_64.tbl instead of syscall_nr.h. New syscall_64.tbl is imported from linux v6.11 using updated scripts/update-syscalltbl.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-ID: <20240920151034.859533-2-laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-09-22linux-user: update syscall_nr.h to Linux v6.10Laurent Vivier
Automatically generated using scripts/gensyscalls.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Brian Cain <bcain@quicinc.com> Message-ID: <20240918074256.720617-2-laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-07-05target/arm: Factor out code for setting MTE TCF0 fieldGustavo Romero
Factor out the code used for setting the MTE TCF0 field from the prctl code into a convenient function. Other subsystems, like gdbstub, need to set this field as well, so keep it as a separate function to avoid duplication and ensure consistency in how this field is set across the board. Signed-off-by: Gustavo Romero <gustavo.romero@linaro.org> Message-Id: <20240628050850.536447-7-gustavo.romero@linaro.org> [AJB: clean-up includes, move MTE defines] Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240705084047.857176-36-alex.bennee@linaro.org>
2024-03-13linux-user: Move tswap_siginfo out of target codeGustavo Romero
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>
2024-03-06{linux,bsd}-user: Introduce get_task_state()Ilya Leoshkevich
A CPU's TaskState is stored in the CPUState's void *opaque field, accessing which is somewhat awkward due to having to use a cast. Introduce a wrapper and use it everywhere. Suggested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240219141628.246823-3-iii@linux.ibm.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240305121005.3528075-4-alex.bennee@linaro.org>
2024-02-15linux-user/aarch64: Choose SYNC as the preferred MTE modeRichard Henderson
The API does not generate an error for setting ASYNC | SYNC; that merely constrains the selection vs the per-cpu default. For qemu linux-user, choose SYNC as the default. Cc: qemu-stable@nongnu.org Reported-by: Gustavo Romero <gustavo.romero@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Tested-by: Gustavo Romero <gustavo.romero@linaro.org> Message-id: 20240207025210.8837-2-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-02-03linux-user/aarch64: Add padding before __kernel_rt_sigreturnRichard Henderson
Without this padding, an unwind through the signal handler will pick up the unwind info for the preceding syscall. This fixes gcc's 30_threads/thread/native_handle/cancel.cc. Cc: qemu-stable@nongnu.org Fixes: ee95fae075c6 ("linux-user/aarch64: Add vdso") Resolves: https://linaro.atlassian.net/browse/GNU-974 Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240202034427.504686-1-richard.henderson@linaro.org>
2023-10-31Merge tag 'pull-lu-20231030' of https://gitlab.com/rth7680/qemu into stagingStefan Hajnoczi
linux-user: Fix guest signal remapping after adjusting SIGABRT linux-user: Implement VDSOs * tag 'pull-lu-20231030' of https://gitlab.com/rth7680/qemu: (21 commits) build: Add update-linux-vdso makefile rule linux-user: Show vdso address in /proc/pid/maps linux-user/s390x: Add vdso linux-user/s390x: Rename __SIGNAL_FRAMESIZE to STACK_FRAME_OVERHEAD linux-user/ppc: Add vdso linux-user/loongarch64: Add vdso linux-user/riscv: Add vdso linux-user/hppa: Add vdso linux-user/arm: Add vdso linux-user/aarch64: Add vdso linux-user/x86_64: Add vdso linux-user/i386: Add vdso linux-user: Add gen-vdso tool linux-user: Load vdso image if available linux-user: Replace bprm->fd with bprm->src.fd linux-user: Use ImageSource in load_symbols linux-user: Use ImageSource in load_elf_image linux-user: Do not clobber bprm_buf swapping ehdr linux-user: Tidy loader_exec linux-user: Introduce imgsrc_read, imgsrc_read_alloc ... Conflicts: linux-user/arm/signal.c Fix an #include context conflict. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2023-10-30linux-user/aarch64: Add vdsoRichard Henderson
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-10-27target/arm: Move feature test functions to their own headerPeter Maydell
The feature test functions isar_feature_*() now take up nearly a thousand lines in target/arm/cpu.h. This header file is included by a lot of source files, most of which don't need these functions. Move the feature test functions to their own header file. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20231024163510.2972081-2-peter.maydell@linaro.org
2023-09-01linux-user: Emulate /proc/cpuinfo on aarch64 and armHelge Deller
Add emulation for /proc/cpuinfo for arm architecture. The output below mimics output as seen on debian porterboxes. aarch64 output example: processor : 0 model name : ARMv8 Processor rev 0 (v8l) BogoMIPS : 100.00 Features : swp half thumb fast_mult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae aes pmull sha1 sha2 crc32 CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x1 CPU part : 0xd07 CPU revision : 0 arm 32-bit output example: processor : 0 model name : ARMv7 Processor rev 5 (armv7l) BogoMIPS : 100.00 Features : swp half thumb fast_mult vfp edsp thumbee neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0f CPU part : 0xc07 CPU revision : 5 Signed-off-by: Helge Deller <deller@gmx.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230803214450.647040-3-deller@gmx.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-09-01linux-user: Split out cpu/target_proc.hRichard Henderson
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 Henderson
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 $guest/target_mman.hRichard Henderson
Provide default values that are as close as possible to the values used by the guest's kernel. Tested-by: Helge Deller <deller@gmx.de> Reviewed-by: Helge Deller <deller@gmx.de> Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2023-07-15linux-user: Split TARGET_PROT_* out of syscall_defs.hRichard Henderson
Move the values into the per-target target_mman.h headers Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230707204054.8792-8-richard.henderson@linaro.org>
2023-02-03linux-user: move target_flat.h to target subdirsMike Frysinger
This makes target_flat.h behave like every other target_xxx.h header. It also makes it actually work -- while the current header says adding a header to the target subdir overrides the common one, it doesn't. This is for two reasons: * meson.build adds -Ilinux-user before -Ilinux-user/$arch * the compiler search path for "target_flat.h" looks in the same dir as the source file before searching -I paths. This can be seen with the xtensa port -- the subdir settings aren't used which breaks stack setup. Move it to the generic/ subdir and add include stubs like every other target_xxx.h header is handled. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20230129004625.11228-1-vapier@gentoo.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2023-01-23target/arm/sme: Rebuild hflags in aarch64_set_svcr()Richard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230112102436.1913-7-philmd@linaro.org Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org> [PMD: Split patch in multiple tiny steps] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23target/arm/sme: Reset SVE state in aarch64_set_svcr()Richard Henderson
Move arm_reset_sve_state() calls to aarch64_set_svcr(). Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230112102436.1913-5-philmd@linaro.org Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org> [PMD: Split patch in multiple tiny steps] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23target/arm/sme: Introduce aarch64_set_svcr()Richard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230112102436.1913-4-philmd@linaro.org Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org> [PMD: Split patch in multiple tiny steps] Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-09-27linux-user: Provide MADV_* definitionsIlya Leoshkevich
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>
2022-07-11linux-user/aarch64: Implement PR_SME_GET_VL, PR_SME_SET_VLRichard Henderson
These prctl set the Streaming SVE vector length, which may be completely different from the Normal SVE vector length. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-43-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user: Rename sve prctlsRichard Henderson
Add "sve" to the sve prctl functions, to distinguish them from the coming "sme" prctls with similar names. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-42-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Implement SME signal handlingRichard Henderson
Set the SM bit in the SVE record on signal delivery, create the ZA record. Restore SM and ZA state according to the records present on return. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-41-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Move sve record checks into restoreRichard Henderson
Move the checks out of the parsing loop and into the restore function. This more closely mirrors the code structure in the kernel, and is slightly clearer. Reject rather than silently skip incorrect VL and SVE record sizes, bringing our checks in to line with those the kernel does. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-40-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Verify extra record lock succeededRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-39-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Do not allow duplicate or short sve recordsRichard Henderson
In parse_user_sigframe, the kernel rejects duplicate sve records, or records that are smaller than the header. We were silently allowing these cases to pass, dropping the record. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-38-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Tidy target_restore_sigframe error returnRichard Henderson
Fold the return value setting into the goto, so each point of failure need not do both. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-37-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Add SM bit to SVE signal contextRichard Henderson
Make sure to zero the currently reserved fields. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-36-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Reset PSTATE.SM on syscallsRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-35-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11linux-user/aarch64: Clear tpidr2_el0 if CLONE_SETTLSRichard Henderson
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-34-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-06-28semihosting: Return void from do_common_semihostingRichard Henderson
Perform the cleanup in the FIXME comment in common_semi_gdb_syscall. Do not modify guest registers until the syscall is complete, which in the gdbstub case is asynchronous. In the synchronous non-gdbstub case, use common_semi_set_ret to set the result. Merge set_swi_errno into common_semi_cb. Rely on the latter for combined return value / errno setting. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-06-08linux-user/aarch64: Introduce sve_vqRichard Henderson
Add an interface function to extract the digested vector length rather than the raw zcr_el[1] value. This fixes an incorrect return from do_prctl_set_vl where we didn't take into account the set of vector lengths supported by the cpu. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220607203306.657998-3-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau
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>
2022-04-06Replace TARGET_WORDS_BIGENDIANMarc-André Lureau
Convert the TARGET_WORDS_BIGENDIAN macro, similarly to what was done with HOST_BIG_ENDIAN. The new TARGET_BIG_ENDIAN macro is either 0 or 1, and thus should always be defined to prevent misuse. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Suggested-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220323155743.1585078-8-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-02-01linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.hSerge Belyshev
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 Henderson
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>
2022-01-06linux-user: Split out do_prctl and subroutinesRichard Henderson
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 Gao
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 Gao
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 Henderson
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 Henderson
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>
2021-12-15target/arm: Take an exception if PC is misalignedRichard Henderson
For A64, any input to an indirect branch can cause this. For A32, many indirect branch paths force the branch to be aligned, but BXWritePC does not. This includes the BX instruction but also other interworking changes to PC. Prior to v8, this case is UNDEFINED. With v8, this is CONSTRAINED UNPREDICTABLE and may either raise an exception or force align the PC. We choose to raise an exception because we have the infrastructure, it makes the generated code for gen_bx simpler, and it has the possibility of catching more guest bugs. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-11-02target/arm: Implement arm_cpu_record_sigbusRichard Henderson
Because of the complexity of setting ESR, re-use the existing arm_cpu_do_unaligned_access function. This means we have to handle the exception ourselves in cpu_loop, transforming it to the appropriate signal. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-10-01linux-user/aarch64: Implement setup_sigtrampRichard Henderson
Create and record the rt signal trampoline. Use it when the guest does not use SA_RESTORER. 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: <20210929130553.121567-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23linux-user/aarch64: Use force_sig_fault()Peter Maydell
Use the new force_sig_fault() function instead of setting up a target_siginfo_t and calling queue_signal(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210813131809.28655-8-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23linux-user/aarch64: Set siginfo_t addr field for SIGTRAP signalsPeter Maydell
When generating a TRAP_BRKPT SIGTRAP, set the siginfo_t addr field to the PC where the breakpoint/singlestep trap occurred; this is what the kernel does for this signal for this architecture. Fixes: Coverity 1459154 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210813131809.28655-2-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-13linux-user: Split linux-user internals out of qemu.hPeter Maydell
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 Maydell
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_nr.h to Linux v5.13Laurent Vivier
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>
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-21 20:47:14 +0000