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2020-08-21meson: linux-userMarc-André Lureau
The most interesting or most complicated part here is the syscall_nr.h generators. In order to keep the generation logic all in meson.build, I am adding to config_target the name of the .tbl file, and making the generated file syscall<SUFFIX>_nr.h for input file syscall<SUFFIX>.tbl. For architectures where the input file is not named syscall_nr.tbl, syscall_nr.h has to be a source file; it's just a forwarder for x86 (i386/x86_64), while for MIPS64 it chooses between N32 and N64 ABIs. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-20linux-user, mips64: add syscall table generation supportLaurent Vivier
Copy syscall_n32.tbl, syscall_n64.tbl and syscallhdr.sh from linux/arch/parisc/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Move the offsets (6000 for n32 and 5000 for n64) from the file to the Makefile.objs to be passed to syscallhdr.sh Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-18-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, mips: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/mips/kernel/syscalls/syscall_o32.tbl v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Move the offset (4000) from the file to the Makefile.objs to be passed to syscallhdr.sh Rename on the fly fadvise64 to fadvise64_64. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-17-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, x86_64: add syscall table generation supportLaurent Vivier
Copy syscall_64.tbl and syscallhdr.sh from linux/arch/x86/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-16-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, i386: add syscall table generation supportLaurent Vivier
Copy syscall_32.tbl and syscallhdr.sh from linux/arch/x86/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-15-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, sparc, sparc64: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/sparc/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-13-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, s390x: add syscall table generation supportLaurent Vivier
Copy syscall.tbl from linux/arch/s390x/kernel/syscalls v5.5 Copy syscallhdr.sh from m68k. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-12-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, ppc: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/ppc/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h and to not generate the entry if entry point is sys_ni_syscall. Fix ppc/signal.c to define do_sigreturn() for TARGET_ABI32. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-10-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, arm: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/arm/tools/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Update syscall.c to manage TARGET_NR_arm_sync_file_range as it has replaced TARGET_NR_sync_file_range2 Move existing stuff from linux-user/Makefile.objs to linux-user/arm/Makefile.objs Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200310103403.3284090-9-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, microblaze: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/microblaze/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-8-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, sh4: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/sh/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-7-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, xtensa: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/xtensa/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-6-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, m68k: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/m68k/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-5-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, hppa: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/parisc/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20200310103403.3284090-4-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-03-20linux-user, alpha: add syscall table generation supportLaurent Vivier
Copy syscall.tbl and syscallhdr.sh from linux/arch/alpha/kernel/syscalls v5.5 Update syscallhdr.sh to generate QEMU syscall_nr.h Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20200310103403.3284090-3-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-06-26linux-user/m68k: remove simulator syscall interfaceLaurent Vivier
This interface has been introduced in 2005 with the coldfire implementation (e6e5906b6e ColdFire target.) and looks like to do what the linux-user interface already does with the TRAP exception rather than the ILLEGAL exception. This interface has not been maintained since that. The semi-hosting interface is not removed so coldfire kernel with semi-hosting is always supported. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20190524162049.806-1-laurent@vivier.eu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-05-28target/arm: use the common interface for WRITE0/WRITEC in arm-semiAlex Bennée
Now we have a common semihosting console interface use that for our string output. However ARM is currently unique in also supporting semihosting for linux-user so we need to replicate the API in linux-user. If other architectures gain this support we can move the file later. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2018-09-25linux-user: move TargetFdTrans functions to their own fileLaurent Vivier
This will ease to move out syscall functions from syscall.c Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180823222215.13781-1-laurent@vivier.eu>
2018-07-05linux-user: introduce preexit_cleanupAlex Bennée
To avoid repeating ourselves move our preexit clean-up code into a helper function. I figured the continuing effort to split of the syscalls made it worthwhile creating a new file for it now. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu>
2018-04-30linux-user: create a dummy per arch cpu_loop.cLaurent Vivier
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: create a dummy per arch signal.cLaurent Vivier
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>
2016-05-27linux-user: Provide safe_syscall for fixing races between signals and syscallsTimothy E Baldwin
If a signal is delivered immediately before a blocking system call the handler will only be called after the system call returns, which may be a long time later or never. This is fixed by using a function (safe_syscall) that checks if a guest signal is pending prior to making a system call, and if so does not call the system call and returns -TARGET_ERESTARTSYS. If a signal is received between the check and the system call host_signal_handler() rewinds execution to before the check. This rewinding has the effect of closing the race window so that safe_syscall will reliably either (a) go into the host syscall with no unprocessed guest signals pending or or (b) return -TARGET_ERESTARTSYS so that the caller can deal with the signals. Implementing this requires a per-host-architecture assembly language fragment. This will also resolve the mishandling of the SA_RESTART flag where we would restart a host system call and not call the guest signal handler until the syscall finally completed -- syscall restarting now always happens at the guest syscall level so the guest signal handler will run. (The host syscall will never be restarted because if the host kernel rewinds the PC to point at the syscall insn for a restart then our host_signal_handler() will see this and arrange the guest PC rewind.) This commit contains the infrastructure for implementing safe_syscall and the assembly language fragment for x86-64, but does not change any syscalls to use it. Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk> Message-id: 1441497448-32489-14-git-send-email-T.E.Baldwin99@members.leeds.ac.uk [PMM: * Avoid having an architecture if-ladder in configure by putting linux-user/host/$(ARCH) on the include path and including safe-syscall.inc.S from it * Avoid ifdef ladder in signal.c by creating new hostdep.h to hold host-architecture-specific things * Added copyright/license header to safe-syscall.inc.S * Rewrote commit message * Added comments to safe-syscall.inc.S * Changed calling convention of safe_syscall() to match syscall() (returns -1 and host error in errno on failure) * Added a long comment in qemu.h about how to use safe_syscall() to implement guest syscalls. ] RV: squashed Peters "fixup! linux-user: compile on non-x86-64 hosts" patch Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-02linux-user: rename cpu-uname -> unameRiku Voipio
To move more uname related functions out of syscall.c, rename cpu-uname.{c,h} to uname.{c.h} Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2012-06-07build: move *-user/ objects to nested Makefile.objsPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-28 15:31:23 +0000