From cbe0dd1405cd2f33ef1cbbc67eda73bfe65d067e Mon Sep 17 00:00:00 2001
From: Tim Newsome <tim@sifive.com>
Date: Wed, 28 Dec 2022 16:49:13 -0800
Subject: debug: Add etrigger test.

---
 debug/gdbserver.py     | 19 +++++++++++++++++++
 debug/programs/debug.c |  2 +-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/debug/gdbserver.py b/debug/gdbserver.py
index af8ddcf..1ffb15f 100755
--- a/debug/gdbserver.py
+++ b/debug/gdbserver.py
@@ -1953,6 +1953,25 @@ class StepThread2Test(GdbTest):
         # GDB's conception of the current thread
         assertEqual(before, after)
 
+class EtriggerTest(DebugTest):
+    def setup(self):
+        DebugTest.setup(self)
+        self.gdb.b("main:start")
+        self.gdb.c()
+        self.gdb.b("handle_trap")
+
+    def test(self):
+        # Set trigger on Load access fault
+        self.gdb.command("monitor riscv etrigger set m 0x20")
+        # Set fox to a null pointer so we'll get a load access exception later.
+        self.gdb.p("fox=(char*)0")
+        output = self.gdb.c()
+        # We should not be at handle_trap
+        assertNotIn("handle_trap", output)
+        # Instead, we should have hit a breakpoint at trap_entry, which is the
+        # actual exception handler.
+        assertIn("breakpoint", output)
+        assertIn("trap_entry", self.gdb.where())
 
 parsed = None
 def main():
diff --git a/debug/programs/debug.c b/debug/programs/debug.c
index 641aa4e..a5693a5 100644
--- a/debug/programs/debug.c
+++ b/debug/programs/debug.c
@@ -53,7 +53,7 @@ int main()
 
     volatile int i = 0;
     int j = 0;
-    char fox[] = "The quick brown fox jumps of the lazy dog.";
+    char *fox = "The quick brown fox jumps of the lazy dog.";
     unsigned int checksum = 0;
     volatile uint32_t i32 = 0xdeadbeef;
     volatile uint64_t i64 = 0x1122334455667788;
-- 
cgit v1.1