[Lldb-commits] [lldb] Add a scripted way to re-present a stop location (PR #158128)

[via lldb-commits]

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@@ -0,0 +1,45 @@
+import lldb
+
+class FacadeExample:
+    def __init__(self, bkpt, extra_args, dict):
+        self.bkpt = bkpt
+        self.extra_args = extra_args
+        self.base_sym = None
+        self.facade_locs = []
+        self.facade_locs_desc = []
+        self.cur_facade_loc = 1
+
+        self.sym_name = extra_args.GetValueForKey("symbol").GetStringValue(100)
+        self.num_locs = extra_args.GetValueForKey("num_locs").GetIntegerValue(5)
+        self.loc_to_miss = extra_args.GetValueForKey("loc_to_miss").GetIntegerValue(10000)
+
+    def __callback__(self, sym_ctx):
+        self.base_sym = sym_ctx.module.FindSymbol(self.sym_name, lldb.eSymbolTypeCode)
+        if self.base_sym.IsValid():
+            self.bkpt.AddLocation(self.base_sym.GetStartAddress())
+            # Locations are 1 based, so to keep things simple, I'm making
+            # the array holding locations 1 based as well:
+            self.facade_locs_desc.append("This is the zero index, you shouldn't see this")
+            self.facade_locs.append(None)
+            for i in range(1, self.num_locs + 1):
+                self.facade_locs_desc.append(f"Location index: {i}")
+                self.facade_locs.append(self.bkpt.AddFacadeLocation())
+                
+    def get_short_help(self):
+        return f"I am a facade resolver - sym: {self.sym_name} - num_locs: {self.num_locs} - locs_to_miss: {self.loc_to_miss}"
+
+    def was_hit(self, frame, bp_loc):
+        tmp_loc = self.cur_facade_loc
+
+        self.cur_facade_loc = (self.cur_facade_loc + 1)
+        if self.cur_facade_loc == 5:
+          self.cur_facade_loc = 1
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jimingham wrote:

Exactly.  I actually pass the number of locations to make into the breakpoint init, so I could use that to symbolically represent the terminus instead.  Let me do that, that will be cleaner.

https://github.com/llvm/llvm-project/pull/158128