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2022-01-13Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell
staging * configure and meson cleanups * KVM_GET/SET_SREGS2 support for x86 # gpg: Signature made Wed 12 Jan 2022 13:09:19 GMT # gpg: using RSA key F13338574B662389866C7682BFFBD25F78C7AE83 # gpg: issuer "pbonzini@redhat.com" # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full] # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" [full] # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini-gitlab/tags/for-upstream: meson: reenable filemonitor-inotify compilation meson: build all modules by default configure: do not create roms/seabios/config.mak if SeaBIOS not present tests/tcg: Fix target-specific Makefile variables path for user-mode KVM: x86: ignore interrupt_bitmap field of KVM_GET/SET_SREGS KVM: use KVM_{GET|SET}_SREGS2 when supported. meson: add comments in the target-specific flags section configure, meson: move config-poison.h to meson meson: build contrib/ executables after generated headers configure: move non-command-line variables away from command-line parsing section configure: parse --enable/--disable-strip automatically, flip default configure, makefile: remove traces of really old files configure: do not set bsd_user/linux_user early configure: simplify creation of plugin symbol list block/file-posix: Simplify the XFS_IOC_DIOINFO handling meson: cleanup common-user/ build user: move common-user includes to a subdirectory of {bsd,linux}-user/ meson: reuse common_user_inc when building files specific to user-mode emulators Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-12user: move common-user includes to a subdirectory of {bsd,linux}-user/Paolo Bonzini
Avoid polluting the compilation of common-user/ with local include files; making an include file available to common-user/ should be a deliberate decision in order to keep a clear interface that can be used by both bsd-user/ and linux-user/. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-01-12Merge remote-tracking branch ↵Peter Maydell
'remotes/lvivier-gitlab/tags/linux-user-for-7.0-pull-request' into staging linux-user pull request 20220111 siginfo_t cleanup more prtctl() update target_struct.h cleanup # gpg: Signature made Tue 11 Jan 2022 19:52:20 GMT # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/lvivier-gitlab/tags/linux-user-for-7.0-pull-request: (30 commits) linux-user: Implement capability prctls linux-user: Implement PR_SET_PDEATHSIG linux-user: Map signal number in PR_GET_PDEATHSIG linux-user: Do not special-case NULL for PR_GET_PDEATHSIG linux-user: Move target_struct.h generic definitions to generic/ linux-user/arm: Move target_oabi_flock64 out of target_structs.h linux-user/xtensa: Use force_sig_fault linux-user/sparc: Use force_sig_fault linux-user/sh4: Use force_sig_fault linux-user/s390x: Use force_sig_fault linux-user/riscv: Use force_sig_fault linux-user/ppc: Use force_sig_fault linux-user/openrisc: Use force_sig_fault target/mips: Extract trap code into env->error_code target/mips: Extract break code into env->error_code linux-user/mips: Use force_sig_fault linux-user/mips: Improve do_break linux-user/microblaze: Fix SIGFPE si_codes linux-user/microblaze: Use force_sig_fault linux-user/m68k: Use force_sig_fault ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-12linux-user: Fix clang warning for nios2-linux-user codePeter Maydell
The clang in Ubuntu 18.04 (10.0.0-4ubuntu1) produces a warning on the code added in commit f5ef0e518d03 where we use a shifted expression in a boolean context: ../../linux-user/elfload.c:2423:16: error: converting the result of '<<' to a boolean always evaluates to true [-Werror,-Wtautological-constant-compare] } else if (LO_COMMPAGE) { ^ ../../linux-user/elfload.c:1102:22: note: expanded from macro 'LO_COMMPAGE' #define LO_COMMPAGE TARGET_PAGE_SIZE ^ /mnt/nvmedisk/linaro/qemu-from-laptop/qemu/include/exec/cpu-all.h:231:31: note: expanded from macro 'TARGET_PAGE_SIZE' #define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS) ^ 1 error generated. The warning is bogus because whether LO_COMMPAGE is zero or not depends on compile-time ifdefs; shut the compiler up by adding an explicit comparison to zero. Fixes: f5ef0e518d0331 ("linux-user/nios2: Map a real kuser page") Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-id: 20220111082900.3341274-1-peter.maydell@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-01-11linux-user: Implement capability prctlsRichard Henderson
This is PR_CAPBSET_READ, PR_CAPBSET_DROP and the "legacy" PR_CAP_AMBIENT PR_GET_SECUREBITS, PR_SET_SECUREBITS. All of these arguments are integer values only, and do not require mapping of values between host and guest. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220106225738.103012-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user: Implement PR_SET_PDEATHSIGRichard Henderson
Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220106225738.103012-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user: Map signal number in PR_GET_PDEATHSIGRichard Henderson
Convert the host signal number to guest signal number before returning the value to the guest. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20220106225738.103012-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user: Do not special-case NULL for PR_GET_PDEATHSIGRichard Henderson
The kernel does not special-case arg2 != NULL, so neither should we. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20220106225738.103012-2-richard.henderson@linaro.org> 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>
2022-01-11linux-user/arm: Move target_oabi_flock64 out of target_structs.hRichard Henderson
Place it next to copy_from/to_user_oabi_flock64, the only users, inside the existing target-specific ifdef. This leaves only generic ipc structs in target_structs.h. 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: <20220107042600.149852-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/xtensa: Use force_sig_faultRichard Henderson
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: <20220107213243.212806-25-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/sparc: Use force_sig_faultRichard Henderson
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>
2022-01-11linux-user/sh4: Use force_sig_faultRichard Henderson
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>
2022-01-11linux-user/s390x: Use force_sig_faultRichard Henderson
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: <20220107213243.212806-22-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/riscv: Use force_sig_faultRichard Henderson
Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Fix missing PC from EXCP_DEBUG by merging the case with EXCP_BREAKPOINT. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-21-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/ppc: Use force_sig_faultRichard Henderson
Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Fill in the missing PC for SIGTRAP. The fault address for POWERPC_EXCP_ISI is nip exactly, not nip - 4. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-20-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/openrisc: Use force_sig_faultRichard Henderson
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: Stafford Horne <shorne@gmail.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-19-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11target/mips: Extract trap code into env->error_codeRichard Henderson
Simplify cpu_loop by doing all of the decode in translate. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-18-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11target/mips: Extract break code into env->error_codeRichard Henderson
Simplify cpu_loop by doing all of the decode in translate. This fixes a bug in that cpu_loop was not handling the different layout of the R6 version of break16. This fixes a bug in that cpu_loop extracted the wrong bits for the mips16e break16 instruction. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-17-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/mips: Use force_sig_faultRichard Henderson
Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Fill in the missing PC for SIGTRAP and SIGFPE; use force_sig (SI_KERNEL) for EXCP_DSPDIS. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-16-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/mips: Improve do_breakRichard Henderson
Rename to do_tr_or_bp, as per the kernel function. Add a 'trap' argument, akin to the kernel's si_code, but clearer. The return value is always 0, so change the return value to void. Use force_sig and force_sig_fault. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-15-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/microblaze: Fix SIGFPE si_codesRichard Henderson
Fix a typo for ESR_EC_DIVZERO, which is integral not floating-point. Fix the if ladder for decoding floating-point exceptions. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-14-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/microblaze: Use force_sig_faultRichard Henderson
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: <20220107213243.212806-13-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/m68k: Use force_sig_faultRichard Henderson
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: <20220107213243.212806-12-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/i386: Use force_sig, force_sig_faultRichard Henderson
Replace the local gen_signal with the generic functions that match how the kernel raises signals. 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: <20220107213243.212806-11-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/i386: Split out maybe_handle_vm86_trapRichard Henderson
Reduce the number of ifdefs within cpu_loop(). Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/hppa: Set FPE_CONDTRAP for CONDRichard Henderson
This si_code was changed in 75abf64287cab, for linux 4.17. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-9-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user: Remove TARGET_NSIGFPERichard Henderson
This define is unused, and we have no similar define for the other signal sub-codes. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/hppa: Use the proper si_code for PRIV_OPR, PRIV_REG, OVERFLOWRichard Henderson
These si_codes have been properly set by the kernel since the beginning. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/hppa: Use force_sig_faultRichard Henderson
Use the new function instead of setting up a target_siginfo_t and calling queue_signal. Fill in the missing PC for SIGTRAP and missing si_code for SIGBUS. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220107213243.212806-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/cris: Use force_sig_faultRichard Henderson
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: <20220107213243.212806-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-11linux-user/alpha: Use force_sig_faultRichard Henderson
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>
2022-01-11linux-user/alpha: Set FPE_FLTUNK for gentrap ROPRANDRichard Henderson
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>
2022-01-11linux-user/alpha: Set TRAP_UNK for bugchk and unknown gentrapRichard Henderson
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>
2022-01-06linux-user: netlink: update IFLA_BRPORT entriesLaurent Vivier
add IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT and IFLA_BRPORT_MCAST_EHT_HOSTS_CNT # QEMU_LOG=unimp ip a Unknown QEMU_IFLA_BRPORT type 37 Unknown QEMU_IFLA_BRPORT type 38 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211219154514.2165728-3-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: netlink: Add IFLA_VFINFO_LISTLaurent Vivier
# QEMU_LOG=unimp ip a Unknown host QEMU_IFLA type: 22 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211219154514.2165728-2-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: netlink: update IFLA entriesLaurent Vivier
Add IFLA_PHYS_PORT_ID, IFLA_PARENT_DEV_NAME, IFLA_PARENT_DEV_BUS_NAME # QEMU_LOG=unimp ip a Unknown host QEMU_IFLA type: 56 Unknown host QEMU_IFLA type: 57 Unknown host QEMU_IFLA type: 34 Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211219154514.2165728-1-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/syscall.c: malloc to g_try_mallocAhmed Abouzied
Use g_try_malloc instead of malloc to alocate the target ifconfig. Also replace the corresponding free with g_free. Signed-off-by: Ahmed Abouzied <email@aabouzied.com> Message-Id: <20220104143841.25116-1-email@aabouzied.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/nios2: Use set_sigmask in do_rt_sigreturnRichard Henderson
Using do_sigprocmask directly was incorrect, as it will leave the signal blocked by the outer layers of linux-user. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211221025012.1057923-8-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/nios2: Fix sigmask in setup_rt_frameRichard Henderson
Do not cast the signal mask elements; trust __put_user. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211221025012.1057923-7-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/nios2: Fix EA vs PC confusionRichard Henderson
The real kernel will talk about the user PC as EA, because that's where the hardware will have copied it, and where it expects to put it to then use ERET. But qemu does not emulate all of the exception stuff while emulating user-only. Manipulate PC directly. This fixes signal entry and return, and eliminates some slight confusion from target_cpu_copy_regs. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20211221025012.1057923-6-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/nios2: Map a real kuser pageRichard Henderson
The first word of page1 is data, so the whole thing can't be implemented with emulation of addresses. Use init_guest_commpage for the allocation. Hijack trap number 16 to implement cmpxchg. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20211221025012.1057923-5-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/elfload: Rename ARM_COMMPAGE to HI_COMMPAGERichard Henderson
Arm will no longer be the only target requiring a commpage, but it will continue to be the only target placing the page at the high end of the address space. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211221025012.1057923-4-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/nios2: Fixes for signal frame setupRichard Henderson
Do not confuse host and guest addresses. Lock and unlock the target_rt_sigframe structure in setup_rt_sigframe. Since rt_setup_ucontext always returns 0, drop the return value entirely. This eliminates the only write to the err variable in setup_rt_sigframe. Always copy the siginfo structure. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20211221025012.1057923-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/nios2: Properly emulate EXCP_TRAPRichard Henderson
The real kernel has to load the instruction and extract the imm5 field; for qemu, modify the translator to do this. The use of R_AT for this in cpu_loop was a bug. Handle the other trap numbers as per the kernel's trap_table. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20211221025012.1057923-2-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/syscall.c: fix missed flag for shared memory in open_self_mapsAndrey Kazmin
The possible variants for region type in /proc/self/maps are either private "p" or shared "s". In the current implementation, we mark shared regions as "-". It could break memory mapping parsers such as included into ASan/HWASan sanitizers. Fixes: 01ef6b9e4e4e ("linux-user: factor out reading of /proc/self/maps") Signed-off-by: Andrey Kazmin <a.kazmin@partner.samsung.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20211227125048.22610-1-a.kazmin@partner.samsung.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: call set/getscheduler set/getparam directlyTonis Tiigi
There seems to be difference in syscall and libc definition of these methods and therefore musl does not implement them (1e21e78bf7). Call syscall directly to ensure the behavior of the libc of user application, not the libc that was used to build QEMU. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com> Message-Id: <20220105041819.24160-3-tonistiigi@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user: add sched_getattr supportTonis Tiigi
These syscalls are not exposed by glibc. The struct type need to be redefined as it can't be included directly before https://lkml.org/lkml/2020/5/28/810 . sched_attr type can grow in future kernel versions. When client sends values that QEMU does not understand it will return E2BIG with same semantics as old kernel would so client can retry with smaller inputs. Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com> Message-Id: <20220105041819.24160-2-tonistiigi@gmail.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06linux-user/signal: Map exit signals in SIGCHLD siginfo_tMatthias Schiffer
When converting a siginfo_t from waitid(), the interpretation of si_status depends on the value of si_code: For CLD_EXITED, it is an exit code and should be copied verbatim. For other codes, it is a signal number (possibly with additional high bits from ptrace) that should be mapped. This code was previously changed in commit 1c3dfb506ea3 ("linux-user/signal: Decode waitid si_code"), but the fix was incomplete. Tested with the following test program: #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/wait.h> int main() { pid_t pid = fork(); if (pid == 0) { exit(12); } else { siginfo_t siginfo = {}; waitid(P_PID, pid, &siginfo, WEXITED); printf("Code: %d, status: %d\n", (int)siginfo.si_code, (int)siginfo.si_status); } pid = fork(); if (pid == 0) { raise(SIGUSR2); } else { siginfo_t siginfo = {}; waitid(P_PID, pid, &siginfo, WEXITED); printf("Code: %d, status: %d\n", (int)siginfo.si_code, (int)siginfo.si_status); } } Output with an x86_64 host and mips64el target before 1c3dfb506ea3 (incorrect: exit code 12 is translated like a signal): Code: 1, status: 17 Code: 2, status: 17 After 1c3dfb506ea3 (incorrect: signal number is not translated): Code: 1, status: 12 Code: 2, status: 12 With this patch: Code: 1, status: 12 Code: 2, status: 17 Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <81534fde7cdfc6acea4889d886fbefdd606630fb.1635019124.git.mschiffer@universe-factory.net> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-01-06target/sh4: Implement prctl_unalign_sigbusRichard Henderson
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>
generated by cgit v1.2.3 (git 2.26.2) at 2025-01-13 12:16:35 +0000