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2018-11-12linux-user: Don't call gdb_handlesig() before queue_signal()Peter Maydell1-7/+4
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>
2018-06-11linux-user/hppa: Fix typo in mknodat syscallRichard Henderson1-1/+1
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: <20180607184844.30126-3-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-06-04linux-user: move hppa signal definitions to hppa/target_signal.hLaurent Vivier1-0/+46
No code change. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20180529194207.31503-15-laurent@vivier.eu>
2018-06-04linux-user: move get_sp_from_cpustate() to target_cpu.hLaurent Vivier3-9/+6
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>
2018-06-04linux-user: move hppa fcntl definitions to hppa/target_fcntl.hLaurent Vivier1-0/+31
No code change. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Acked-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180529194207.31503-4-laurent@vivier.eu>
2018-06-04linux-user: move generic fcntl definitions to generic/fcntl.hLaurent Vivier1-0/+11
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>
2018-05-25linux-user: update ARCH_HAS_SOCKET_TYPES useLaurent Vivier1-30/+3
to be like in the kernel and rename it TARGET_ARCH_HAS_SOCKET_TYPES Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180519092956.15134-7-laurent@vivier.eu>
2018-05-03linux-user: introduce target_sigsp() and target_save_altstack()Laurent Vivier1-10/+4
Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180411192347.30228-1-laurent@vivier.eu>
2018-04-30linux-user: move hppa cpu loop to hppa directoryLaurent Vivier1-0/+185
No code change, only move code from main.c to hppa/cpu_loop.c. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180411185651.21351-19-laurent@vivier.eu>
2018-04-30linux-user: create a dummy per arch cpu_loop.cLaurent Vivier1-0/+26
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>
2018-04-30linux-user: define TARGET_ARCH_HAS_SETUP_FRAMELaurent Vivier1-4/+0
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>
2018-04-30linux-user: move hppa signal.c parts to hppa directoryLaurent Vivier2-0/+195
No code change, only move code from signal.c to hppa/signal.c, except adding includes and exporting setup_rt_frame(). Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180424192635.6027-15-laurent@vivier.eu>
2018-04-30linux-user: create a dummy per arch signal.cLaurent Vivier1-0/+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>
2018-02-25linux-user: Move CPU type name selection to a functionLaurent Vivier1-0/+14
Instead of a sequence of "#if ... #endif" move the selection to a function in linux-user/*/target_elf.h We can't add them in linux-user/*/target_cpu.h because we will need to include "elf.h" to use ELF flags with eflags, and including "elf.h" in "target_cpu.h" introduces some conflicts in elfload.c Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20180220173307.25125-2-laurent@vivier.eu>
2018-02-18linux-user: Implement ioctl cmd TIOCGPTPEERAndreas Schwab1-0/+2
With glibc 2.27 the openpty function prefers the TIOCGPTPEER ioctl. Signed-off-by: Andreas Schwab <schwab@suse.de> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <mvmbmhdosb9.fsf_-_@suse.de> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-01-30target/hppa: Add control registersRichard Henderson1-1/+1
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2017-11-07linux-user/hppa: Fix typo for TARGET_NR_epoll_waitHelge Deller1-1/+1
Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Helge Deller <deller@gmx.de> Message-Id: <20170311100543.GA29669@ls3530.fritz.box> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-11-07linux-user/hppa: Fix cpu_clone_regsRichard Henderson1-0/+4
By failing to return from the syscall in the child, the child issues another clone syscall and hilarity ensues. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2017-02-06linux-user: define correct UTS machine name for hppaLaurent Vivier1-1/+1
the correct UTS machine name (as expected by systemd) is "parisc", not "hppa". Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20170126080449.28255-4-laurent@vivier.eu> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA target_signal.h and target_cpu.hRichard Henderson2-0/+64
The cpu.h structure that these manipulate hasn't been defined yet, but we haven't enabled compilation yet either. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA target_structs.hRichard Henderson1-0/+54
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA target_syscall.hRichard Henderson1-0/+237
Which is primarily a re-definition of errno numbers. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA termbits.hRichard Henderson1-0/+219
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA syscall numbersRichard Henderson1-0/+353
Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23linux-user: Add HPPA socket.h definitionsRichard Henderson1-0/+97
Split this out into a "cpu/sockbits.h" file now, like we ought to do for all of the other targets. Signed-off-by: Richard Henderson <rth@twiddle.net>
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