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| author | Richard Henderson <richard.henderson@linaro.org> | 2021-11-17 16:14:00 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-12-20 10:12:24 -0800 |
| commit | bbf15aaf7c7506c88062288b3ae122b882f65e69 (patch) | |
| tree | 35c44f9cb40a66389e85da8afbb4fd65efc71af2 /common-user/safe-syscall.S | |
| parent | 2ac16d01e371ba9fb268f04249eaca9fafceb00b (diff) | |
| download | qemu-bbf15aaf7c7506c88062288b3ae122b882f65e69.zip qemu-bbf15aaf7c7506c88062288b3ae122b882f65e69.tar.gz qemu-bbf15aaf7c7506c88062288b3ae122b882f65e69.tar.bz2 | |
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>
Diffstat (limited to 'common-user/safe-syscall.S')
| -rw-r--r-- | common-user/safe-syscall.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/common-user/safe-syscall.S b/common-user/safe-syscall.S new file mode 100644 index 0000000..74f7e35 --- /dev/null +++ b/common-user/safe-syscall.S @@ -0,0 +1,27 @@ +/* + * safe-syscall.S : include the host-specific assembly fragment + * to handle signals occurring at the same time as system calls. + * + * Written by Peter Maydell <peter.maydell@linaro.org> + * + * Copyright (C) 2016 Linaro Limited + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "special-errno.h" + +/* We have the correct host directory on our include path + * so that this will pull in the right fragment for the architecture. + */ +#include "safe-syscall.inc.S" + +/* We must specifically say that we're happy for the stack to not be + * executable, otherwise the toolchain will default to assuming our + * assembly needs an executable stack and the whole QEMU binary will + * needlessly end up with one. This should be the last thing in this file. + */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack, "", %progbits +#endif |