Fix #125 Configure GDB to report absolute paths

doc/nvimgdb.txt

@@ -298,14 +298,6 @@ Section 7.1 GDB                                                   *NvimgdbGDB*
   program that launches gdb in a pseudo terminal, listens a unix socket for
   commands, and processes the output of GDB to filter out service commands.
 
-- The compiler may embed relative paths to the source code files. Thus, the
-  plugin may struggle to find them on the file system when identifying
-  breakpoints. So consider working from within the same directory that was
-  used to compile. Or alternatively, configure GCC to embed full paths: >
-
-      gcc -fdebug-prefix-map=..=$(readlink -f ..)
-<
-
 ==============================================================================
 Section 8: Limitations                                    *NvimgdbLimitations*
 

lib/gdb_wrap.sh

@@ -27,6 +27,7 @@ gdb_init=$(mktemp /tmp/gdb_init.XXXXXX)
 cat >"$gdb_init" <<EOF
 set confirm off
 set pagination off
+set filename-display absolute
 python gdb.prompt_hook = lambda p: p + ("" if p.endswith("\x1a\x1a\x1a") else "\x1a\x1a\x1a")
 EOF
 

rplugin/python3/gdb/backend/gdb.py

@@ -34,27 +34,12 @@ def __init__(self, proxy):
         self.proxy = proxy
         self.logger = logging.getLogger("Gdb.Breakpoint")
 
-    def _resolve_file(self, fname):
-        """Resolve filename full path into its debugger presentation."""
-        resp = self.proxy.query(f"handle-command info source {fname}")
-        self.logger.debug(resp)
-        pattern = re.compile(r"Current source file is ([^\r\n]+)")
-        match = pattern.search(resp)
-        if match:
-            self.logger.info(match.group(1))
-            return match.group(1)
-        return fname
-
     def query(self, fname: str):
         self.logger.info("Query breakpoints for %s", fname)
-        fname_sym = self._resolve_file(fname)
-        if fname != fname_sym:
-            self.logger.info("Map file path %s to %s", fname, fname_sym)
         response = self.proxy.query("handle-command info breakpoints")
         if not response:
             return {}
-
-        return self._parse_response(response, fname_sym)
+        return self._parse_response(response, fname)
 
     def _parse_response(self, response: str, fname_sym: str):
         # Select lines in the current file with enabled breakpoints.