riscv/qemu - qemu - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Peter Maydell	b10089a14c	linux-user: Don't call gdb_handlesig() before queue_signal() The CPU main-loop routines for linux-user generally call gdb_handlesig() when they're about to queue a SIGTRAP signal. This is wrong, because queue_signal() will cause us to pend a signal, and process_pending_signals() will then call gdb_handlesig() itself. So the effect is that we notify gdb of the SIGTRAP, and then if gdb says "OK, continue with signal X" we will incorrectly notify gdb of the signal X as well. We don't do this double-notify for anything else, only SIGTRAP. Remove this unnecessary and incorrect code from all the targets except for nios2 (whose main loop is doing something different and broken, and will be handled in a separate patch). This bug only manifests if the user responds to the reported SIGTRAP using "signal SIGFOO" rather than "continue"; since the latter is the overwhelmingly common thing to do after a breakpoint most people won't have hit this. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20181019174958.26616-2-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>	8 years ago
Max Filippov	02e33e9ffd	linux-user: xtensa: enable bFLT support - request bflt support in configure; - implement custom linux-user/xtensa/target_flat.h that doesn't put envp on stack; - fix #include "target_flat.h" in flatload.c so that it first search for arch-customized version of the header. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>	8 years ago
Laurent Vivier	e5171a9eb9	linux-user: move generic signal definitions to generic/signal.h No code change. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180529194207.31503-10-laurent@vivier.eu>	8 years ago
Laurent Vivier	9850f9f63a	linux-user: move get_sp_from_cpustate() to target_cpu.h Remove useless includes Fix HPPA include guard. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180529194207.31503-9-laurent@vivier.eu>	8 years ago
Laurent Vivier	5de7706e2c	linux-user: move generic fcntl definitions to generic/fcntl.h add a per target target_fcntl.h and include the generic one from them No code change. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180529194207.31503-2-laurent@vivier.eu>	8 years ago
Laurent Vivier	500fa60760	linux-user: move socket.h generic definitions to generic/sockbits.h and include the file from architectures without specific definitions Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180519092956.15134-5-laurent@vivier.eu>	8 years ago
Laurent Vivier	465e237bf7	linux-user: introduce target_sigsp() and target_save_altstack() Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180411192347.30228-1-laurent@vivier.eu>	8 years ago
Laurent Vivier	de6e89b81f	linux-user: move xtensa cpu loop to xtensa directory No code change, only move code from main.c to xtensa/cpu_loop.c. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180411185651.21351-20-laurent@vivier.eu>	8 years ago
Laurent Vivier	cd71c08964	linux-user: create a dummy per arch cpu_loop.c Create a cpu_loop-common.h for future use by these new files and use it in the existing main.c Introduce target_cpu_copy_regs(): declare the function in cpu_loop-common.h and an empty function for each target, to move all the cpu_loop prologues to this function. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180411185651.21351-2-laurent@vivier.eu>	8 years ago
Laurent Vivier	cb6ac802ef	linux-user: define TARGET_ARCH_HAS_SETUP_FRAME Instead of calling setup_frame() conditionally to a list of known targets, define TARGET_ARCH_HAS_SETUP_FRAME if the target provides the function and call it only if the macro is defined. Move declarations of setup_frame() and setup_rt_frame() to linux-user/signal-common.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180424192635.6027-21-laurent@vivier.eu>	8 years ago
Laurent Vivier	3612667cbb	linux-user: move xtensa signal.c parts to xtensa directory No code change, only move code from signal.c to xtensa/signal.c, except adding includes and exporting setup_rt_frame(). Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180424192635.6027-16-laurent@vivier.eu>	8 years ago
Laurent Vivier	befb7447a0	linux-user: create a dummy per arch signal.c Create a signal-common.h for future use by these new files and use it in the existing signal.c Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180424192635.6027-2-laurent@vivier.eu>	8 years ago
Max Filippov	a3da8be512	target/xtensa: linux-user: fix sysv IPC structures - make target_ipc_perm fields match kernel definitions for xtensa; - add target_semid64_ds with proper order of times and reserved fields for little/big endian specific for xtensa; - add missing reserved fields after time fields to the target_shmid_ds; - fix types of shm_cpid, shm_lpid and shm_nattch fields of target_shmid_ds to match kernel definitions for xtensa. These changes fix guest ipcs output and fix glibc testsuite tests sysvipc/test-sysvsem and sysvipc/test-sysvshm. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>	8 years ago
Max Filippov	12ab0b33f1	linux-user/xtensa: remove stray syscall.h Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>	8 years ago
Max Filippov	ba7651fba5	target/xtensa: add linux-user support Import list of syscalls from the kernel source. Conditionalize code/data that is only used with softmmu. Implement exception handlers. Implement signal hander (only the core registers for now, no coprocessors or TIE). Cc: Riku Voipio <riku.voipio@iki.fi> Cc: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>	9 years ago

15 Commits (21f80286cc48142c2df1530eba32bd70131a1bdc)