3 commits

Author	SHA1	Message	Date
Richard Henderson	d7478d4229	common-user: Fix tail calls to safe_syscall_set_errno_tail ... For the ABIs in which the syscall return register is not also the first function argument register, move the errno value into the correct place. Fixes: a3310c0397 ("linux-user: Move syscall error detection into safe_syscall_base") Reported-by: Laurent Vivier <laurent@vivier.eu> Tested-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20220104190454.542225-1-richard.henderson@linaro.org>	2022-01-04 15:41:03 -08:00
Richard Henderson	5bfd125ec8	common-user: Adjust system call return on FreeBSD ... FreeBSD system calls return positive errno. On the 4 hosts for which we have support, error is indicated by the C bit set or clear. Reviewed-by: Warner Losh <imp@bsdimp.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>	2021-12-20 10:12:29 -08:00
Richard Henderson	bbf15aaf7c	common-user: Move safe-syscall.* from linux-user ... 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>	2021-12-20 10:12:24 -08:00