1 files changed, 66 insertions, 0 deletions
diff --git a/pkg/sentry/arch/signal_info.go b/pkg/sentry/arch/signal_info.go
new file mode 100644
index 000000000..f93ee8b46
--- /dev/null
+++ b/pkg/sentry/arch/signal_info.go
@@ -0,0 +1,66 @@
+// Copyright 2018 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package arch
+
+// Possible values for SignalInfo.Code. These values originate from the Linux
+// kernel's include/uapi/asm-generic/siginfo.h.
+const (
+	// SignalInfoUser (properly SI_USER) indicates that a signal was sent from
+	// a kill() or raise() syscall.
+	SignalInfoUser = 0
+
+	// SignalInfoKernel (properly SI_KERNEL) indicates that the signal was sent
+	// by the kernel.
+	SignalInfoKernel = 0x80
+
+	// SignalInfoTimer (properly SI_TIMER) indicates that the signal was sent
+	// by an expired timer.
+	SignalInfoTimer = -2
+
+	// SignalInfoTkill (properly SI_TKILL) indicates that the signal was sent
+	// from a tkill() or tgkill() syscall.
+	SignalInfoTkill = -6
+
+	// CLD_* codes are only meaningful for SIGCHLD.
+
+	// CLD_EXITED indicates that a task exited.
+	CLD_EXITED = 1
+
+	// CLD_KILLED indicates that a task was killed by a signal.
+	CLD_KILLED = 2
+
+	// CLD_DUMPED indicates that a task was killed by a signal and then dumped
+	// core.
+	CLD_DUMPED = 3
+
+	// CLD_TRAPPED indicates that a task was stopped by ptrace.
+	CLD_TRAPPED = 4
+
+	// CLD_STOPPED indicates that a thread group completed a group stop.
+	CLD_STOPPED = 5
+
+	// CLD_CONTINUED indicates that a group-stopped thread group was continued.
+	CLD_CONTINUED = 6
+
+	// SYS_* codes are only meaningful for SIGSYS.
+
+	// SYS_SECCOMP indicates that a signal originates from seccomp.
+	SYS_SECCOMP = 1
+
+	// TRAP_* codes are only meaningful for SIGTRAP.
+
+	// TRAP_BRKPT indicates a breakpoint trap.
+	TRAP_BRKPT = 1
+)