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-rw-r--r--include/uapi/asm-generic/siginfo.h3
-rw-r--r--include/uapi/linux/prctl.h5
2 files changed, 7 insertions, 1 deletions
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index 7aacf9389010..d2597000407a 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -286,7 +286,8 @@ typedef struct siginfo {
* SIGSYS si_codes
*/
#define SYS_SECCOMP 1 /* seccomp triggered */
-#define NSIGSYS 1
+#define SYS_USER_DISPATCH 2 /* syscall user dispatch triggered */
+#define NSIGSYS 2
/*
* SIGEMT si_codes
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index 7f0827705c9a..90deb41c8a34 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -247,4 +247,9 @@ struct prctl_mm_map {
#define PR_SET_IO_FLUSHER 57
#define PR_GET_IO_FLUSHER 58
+/* Dispatch syscalls to a userspace handler */
+#define PR_SET_SYSCALL_USER_DISPATCH 59
+# define PR_SYS_DISPATCH_OFF 0
+# define PR_SYS_DISPATCH_ON 1
+
#endif /* _LINUX_PRCTL_H */