From f5f673de0f615327465640e87ab5b4be561fbb8d Mon Sep 17 00:00:00 2001
From: Akash Levy <akash@silimate.com>
Date: Thu, 14 Nov 2024 04:53:58 -0800
Subject: [PATCH] Add segv pass to trigger a segfault

---
 Makefile            |  2 ++
 passes/cmds/segv.cc | 43 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)
 create mode 100644 passes/cmds/segv.cc

diff --git a/Makefile b/Makefile
index 8c5548d30..7a1c64645 100644
--- a/Makefile
+++ b/Makefile
@@ -750,6 +750,8 @@ OBJS += passes/cmds/splitnetlist.o
 OBJS += passes/cmds/reconstructbusses.o
 OBJS += passes/sat/sim.o
 
+OBJS += passes/cmds/segv.o
+
 include $(YOSYS_SRC)/passes/hierarchy/Makefile.inc
 include $(YOSYS_SRC)/passes/memory/Makefile.inc
 include $(YOSYS_SRC)/passes/pmgen/Makefile.inc
diff --git a/passes/cmds/segv.cc b/passes/cmds/segv.cc
new file mode 100644
index 000000000..5b1383950
--- /dev/null
+++ b/passes/cmds/segv.cc
@@ -0,0 +1,43 @@
+/*
+ *  yosys -- Yosys Open SYnthesis Suite
+ *
+ *  Copyright (C) 2024  Akash Levy <akash@silimate.com>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "kernel/yosys.h"
+#include "kernel/sigtools.h"
+
+USING_YOSYS_NAMESPACE
+PRIVATE_NAMESPACE_BEGIN
+
+struct SegvPass : public Pass {
+	SegvPass() : Pass("segv", "trigger a segfault") { }
+	void help() override
+	{
+		//   |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
+		log("\n");
+		log("    segv\n");
+		log("\n");
+		log("This command triggers a segfault for debugging.\n");
+		log("\n");
+	}
+	void execute(std::vector<std::string>, RTLIL::Design *) override
+	{
+    raise(SIGSEGV);
+	}
+} SegvPass;
+
+PRIVATE_NAMESPACE_END