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* linux-user: Move tswap_siginfo out of target codeGustavo Romero2024-03-131-2/+2
| | | | | | | | | | | 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>
* linux-user: Rename TARGET_QEMU_ESIGRETURN to QEMU_ESIGRETURNRichard Henderson2021-12-191-4/+4
| | | | | | | | 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/m68k: Implement setup_sigtrampRichard Henderson2021-10-011-25/+22
| | | | | | | | | Create and record the two signal trampolines. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210929130553.121567-13-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: Split linux-user internals out of qemu.hPeter Maydell2021-09-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | 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: Pass CPUArchState to target_restore_altstackRichard Henderson2021-05-151-1/+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>
* linux-user: Use target_restore_altstack in all sigreturnRichard Henderson2021-05-151-4/+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>
* linux-user: Remove dead error-checking codePeter Maydell2018-11-121-3/+0
| | | | | | | | | | | | | | | Remove some dead code spotted by Coverity (CID 1009855, 1390854, 1390847). The underlying cause in all these cases is the same: QEMU's put_user operations can't result in errors, but the kernel's equivalent does. So when code was copied from the kernel signal-frame-setup/teardown code, checks on error flags that were needed in the kernel became dead code for us. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20181019161715.12122-1-peter.maydell@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* linux-user: move get_sp_from_cpustate() to target_cpu.hLaurent Vivier2018-06-041-1/+0
| | | | | | | | | 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>
* linux-user: introduce target_sigsp() and target_save_altstack()Laurent Vivier2018-05-031-12/+3
| | | | | | Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180411192347.30228-1-laurent@vivier.eu>
* linux-user: move m68k signal.c parts to m68k directoryLaurent Vivier2018-04-301-0/+410
| | | | | | | | | | | No code change, only move code from signal.c to m68k/signal.c, except adding includes and exporting setup_frame() and 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: <20180424192635.6027-11-laurent@vivier.eu>
* linux-user: create a dummy per arch signal.cLaurent Vivier2018-04-301-0/+18
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>