Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 63 insertions, 0 deletions

diff --git a/linux-user/generic/signal.h b/linux-user/generic/signal.h
new file mode 100644
index 000000000..943bc1a1e
--- /dev/null
+++ b/linux-user/generic/signal.h
@@ -0,0 +1,63 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation, or (at your option) any
+ * later version. See the COPYING file in the top-level directory.
+ */
+
+#ifndef GENERIC_SIGNAL_H
+#define GENERIC_SIGNAL_H
+
+#define TARGET_SA_NOCLDSTOP     0x00000001
+#define TARGET_SA_NOCLDWAIT     0x00000002 /* not supported yet */
+#define TARGET_SA_SIGINFO       0x00000004
+#define TARGET_SA_ONSTACK       0x08000000
+#define TARGET_SA_RESTART       0x10000000
+#define TARGET_SA_NODEFER       0x40000000
+#define TARGET_SA_RESETHAND     0x80000000
+#define TARGET_SA_RESTORER      0x04000000
+
+#define TARGET_SIGHUP            1
+#define TARGET_SIGINT            2
+#define TARGET_SIGQUIT           3
+#define TARGET_SIGILL            4
+#define TARGET_SIGTRAP           5
+#define TARGET_SIGABRT           6
+#define TARGET_SIGIOT            6
+#define TARGET_SIGBUS            7
+#define TARGET_SIGFPE            8
+#define TARGET_SIGKILL           9
+#define TARGET_SIGUSR1          10
+#define TARGET_SIGSEGV          11
+#define TARGET_SIGUSR2          12
+#define TARGET_SIGPIPE          13
+#define TARGET_SIGALRM          14
+#define TARGET_SIGTERM          15
+#define TARGET_SIGSTKFLT        16
+#define TARGET_SIGCHLD          17
+#define TARGET_SIGCONT          18
+#define TARGET_SIGSTOP          19
+#define TARGET_SIGTSTP          20
+#define TARGET_SIGTTIN          21
+#define TARGET_SIGTTOU          22
+#define TARGET_SIGURG           23
+#define TARGET_SIGXCPU          24
+#define TARGET_SIGXFSZ          25
+#define TARGET_SIGVTALRM        26
+#define TARGET_SIGPROF          27
+#define TARGET_SIGWINCH         28
+#define TARGET_SIGIO            29
+#define TARGET_SIGPWR           30
+#define TARGET_SIGSYS           31
+#define TARGET_SIGRTMIN         32
+
+#define TARGET_SIG_BLOCK          0    /* for blocking signals */
+#define TARGET_SIG_UNBLOCK        1    /* for unblocking signals */
+#define TARGET_SIG_SETMASK        2    /* for setting the signal mask */
+
+/* bit-flags */
+#define TARGET_SS_AUTODISARM (1U << 31) /* disable sas during sighandling */
+/* mask for all SS_xxx flags */
+#define TARGET_SS_FLAG_BITS  TARGET_SS_AUTODISARM
+
+#endif