5 Commits

Author	SHA1	Message	Date
Richard Henderson	af254a2792	linux-user: Rename TARGET_ERESTARTSYS to QEMU_ERESTARTSYS ... 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>	2021-12-19 20:47:33 -08:00
Richard Henderson	a3310c0397	linux-user: Move syscall error detection into safe_syscall_base ... 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>	2021-12-19 20:47:33 -08:00
Richard Henderson	b9d2af3c62	linux-user: Untabify all safe-syscall.inc.S ... 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>	2021-12-19 20:47:33 -08:00
Guido Günther	2c418853b9	linux-user: Fix register used for 6th and 7th syscall argument on aarch64 ... This unbreaks the testcase from http://lists.nongnu.org/archive/html/qemu-arm/2018-01/msg00514.html Thanks to Laurent Vivier for spotting the 7th one. Signed-off-by: Guido Günther <agx@sigxcpu.org> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Suggested-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <671eaa99f4e0bf3a58f76f9151f7cfa24662227f.1517565566.git.agx@sigxcpu.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>	2018-02-18 18:52:32 +01:00
Richard Henderson	31f875f211	linux-user: Provide safe_syscall for aarch64 ... Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org> [RV] Updated syscall argument comment to match code	2016-06-26 13:17:22 +03:00