Experimental fork of QEMU with video encoding patches https://git.openslx.org/bwlp/qemu.git/atom/linux-user/host/s390x/safe-syscall.inc.S?h=spice_video_codecs 2021-12-20T18:12:24+00:00 2021-12-20T18:12:24+00:00 Richard Henderson 2021-11-17T15:14:00+00:00 urn:sha1:bbf15aaf7c7506c88062288b3ae122b882f65e69 Move linux-user safe-syscall.S and safe-syscall-error.c to common-user so that bsd-user can also use it. Also move safe-syscall.h to include/user/. Since there is nothing here that is related to the guest, as opposed to the host, build it once. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-22T18:47:33+00:00 urn:sha1:af254a279255bd753c2b0b3a70fc39f09c724aab This value is fully internal to qemu, and so is not a TARGET define. We use this as an extra marker for both host and target errno. Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-15T13:08:52+00:00 urn:sha1:a3310c0397e21df8f47cde3e55736104b9584d2d The current api from safe_syscall_base() is to return -errno, which is the interface provided by *some* linux kernel abis. The wrapper macro, safe_syscall(), detects error, stores into errno, and returns -1, to match the api of the system syscall(). For those kernel abis that do not return -errno natively, this leads to double syscall error detection. E.g. Linux ppc64, which sets the SO flag for error. Simplify the usage from C by moving the error detection into assembly, and usage from assembly by providing a C helper with which to set errno. Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2021-12-20T04:47:33+00:00 Richard Henderson 2021-11-23T10:44:55+00:00 urn:sha1:b9d2af3c62c22870c02410d5c9c6d097ee0ddf3f Reviewed-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> 2017-02-14T16:18:03+00:00 Richard Henderson 2016-10-26T19:08:52+00:00 urn:sha1:6cde51769e75d41cade0a5b3755da0c20a96309a The LT instruction was added in the extended immediate facility introduced with the z9-109 processor. Cc: Riku Voipio <riku.voipio@iki.fi> Reported-by: Michael Tokarev <mjt@tls.msk.ru> Fixes: c9bc3437a905b660561a26cd4ecc64579843267b Suggested-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org> 2016-06-26T10:17:22+00:00 Richard Henderson 2016-06-22T00:32:12+00:00 urn:sha1:c9bc3437a905b660561a26cd4ecc64579843267b Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>