[PATCH 19/22] bsd-user: Add safe system call macros

From: Warner Losh <imp@bsdimp.com>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
	arrowd@FreeBSD.org, Kyle Evans <kevans@FreeBSD.org>,
	Richard Henderson <richard.henderson@linaro.org>,
	def@FreeBSD.org, jrtc27@FreeBSD.org, Warner Losh <imp@bsdimp.com>,
	Brad Smith <brad@comstyle.com>
Subject: [PATCH 19/22] bsd-user: Add safe system call macros
Date: Tue,  1 Feb 2022 04:14:52 -0700	[thread overview]
Message-ID: <20220201111455.52511-20-imp@bsdimp.com> (raw)
In-Reply-To: <20220201111455.52511-1-imp@bsdimp.com>

Add a series of macros to create system call macros that go via the
safe_syscall path.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
---
 bsd-user/syscall_defs.h | 47 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h
index 62b472b990b..c3bf14f38f4 100644
--- a/bsd-user/syscall_defs.h
+++ b/bsd-user/syscall_defs.h
@@ -179,4 +179,51 @@ struct target_freebsd__wrusage {
     struct target_freebsd_rusage wru_children;
 };
 
+#define safe_syscall0(type, name) \
+type safe_##name(void) \
+{ \
+    return safe_syscall(SYS_##name); \
+}
+
+#define safe_syscall1(type, name, type1, arg1) \
+type safe_##name(type1 arg1) \
+{ \
+    return safe_syscall(SYS_##name, arg1); \
+}
+
+#define safe_syscall2(type, name, type1, arg1, type2, arg2) \
+type safe_##name(type1 arg1, type2 arg2) \
+{ \
+    return safe_syscall(SYS_##name, arg1, arg2); \
+}
+
+#define safe_syscall3(type, name, type1, arg1, type2, arg2, type3, arg3) \
+type safe_##name(type1 arg1, type2 arg2, type3 arg3) \
+{ \
+    return safe_syscall(SYS_##name, arg1, arg2, arg3); \
+}
+
+#define safe_syscall4(type, name, type1, arg1, type2, arg2, type3, arg3, \
+    type4, arg4) \
+type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
+{ \
+    return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4); \
+}
+
+#define safe_syscall5(type, name, type1, arg1, type2, arg2, type3, arg3, \
+    type4, arg4, type5, arg5) \
+type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
+    type5 arg5) \
+{ \
+    return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4, arg5); \
+}
+
+#define safe_syscall6(type, name, type1, arg1, type2, arg2, type3, arg3, \
+    type4, arg4, type5, arg5, type6, arg6) \
+type safe_##name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, \
+    type5 arg5, type6 arg6) \
+{ \
+    return safe_syscall(SYS_##name, arg1, arg2, arg3, arg4, arg5, arg6); \
+}
+
 #endif /* ! _SYSCALL_DEFS_H_ */
-- 
2.33.1


