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2016-05-27linux-user: Support for restarting system calls for tilegx targetsPeter Maydell1-0/+1
Update the tilegx main loop and sigreturn code: * on TARGET_ERESTARTSYS, wind guest PC backwards to repeat syscall insn * return -TARGET_QEMU_ESIGRETURN from sigreturn rather than current R_RE * handle TARGET_QEMU_ESIGRETURN in the main loop as the indication that the main loop should not touch any guest CPU state Note that this fixes a bug where a sigreturn which happened to have an errno value in TILEGX_R_RE would incorrectly cause TILEGX_R_ERR to get set. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-02-23linux-user: sync syscall numbers with kernelRiku Voipio1-0/+4
Sync syscall numbers to match the linux v4.5-rc1 kernel. Reviewed-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-02-23build: [linux-user] Rename "syscall.h" to "target_syscall.h" in target ↵Lluís Vilanova1-0/+0
directories This fixes double-definitions in linux-user builds when using the UST tracing backend (which indirectly includes the system's "syscall.h"). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2015-10-07linux-user/tilegx: Implement tilegx signal featuresChen Gang1-0/+3
[rth: Remove the spreg[EX1] handling, as it's irrelevant to user-mode.] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Message-Id: <1443312618-13641-1-git-send-email-gang.chen.5i5j@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-15linux-user: tilegx: Add architecture related featuresChen Gang6-0/+747
They are based on Linux kernel tilegx architecture for 64 bit binary, and also based on tilegx ABI reference document, and also reference from other targets implementations. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <BLU436-SMTP2508945F92945BB525605A3B9660@phx.gbl> Signed-off-by: Richard Henderson <rth@twiddle.net>