debuginfo: Add a rust-gdb shell script for starting GDB with Rust pretty printers

mk/clean.mk

@@ -64,6 +64,7 @@ clean-generic-$(2)-$(1):
          -name '*.dll' -o \
          -name '*.def' -o \
          -name '*.py' -o \
+         -name '*.pyc' -o \
          -name '*.bc' \
          \) \
          | xargs rm -f
@@ -79,7 +80,7 @@ define CLEAN_HOST_STAGE_N
 
 clean$(1)_H_$(2): \
 	    $$(foreach crate,$$(CRATES),clean$(1)_H_$(2)-lib-$$(crate)) \
-	    $$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS),clean$(1)_H_$(2)-tool-$$(tool))
+	    $$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS_ALL),clean$(1)_H_$(2)-tool-$$(tool))
 	$$(Q)rm -fr $(2)/rt/libbacktrace
 
 clean$(1)_H_$(2)-tool-%:
@@ -99,7 +100,7 @@ define CLEAN_TARGET_STAGE_N
 
 clean$(1)_T_$(2)_H_$(3): \
 	    $$(foreach crate,$$(CRATES),clean$(1)_T_$(2)_H_$(3)-lib-$$(crate)) \
-	    $$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS),clean$(1)_T_$(2)_H_$(3)-tool-$$(tool))
+	    $$(foreach tool,$$(TOOLS) $$(DEBUGGER_BIN_SCRIPTS_ALL),clean$(1)_T_$(2)_H_$(3)-tool-$$(tool))
 	$$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a
 	$$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/libcompiler-rt.a
 	$(Q)rm -f $$(TLIB$(1)_T_$(2)_H_$(3))/librun_pass_stage* # For unix

mk/debuggers.mk

@@ -12,26 +12,77 @@
 # Copy debugger related scripts
 ######################################################################
 
-DEBUGGER_RUSTLIB_ETC_SCRIPTS=lldb_rust_formatters.py
-DEBUGGER_BIN_SCRIPTS=rust-lldb
 
-DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS=$(foreach script,$(DEBUGGER_RUSTLIB_ETC_SCRIPTS), \
-                                     $(CFG_SRC_DIR)src/etc/$(script))
-DEBUGGER_BIN_SCRIPTS_ABS=$(foreach script,$(DEBUGGER_BIN_SCRIPTS), \
-                             $(CFG_SRC_DIR)src/etc/$(script))
+## GDB ##
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB=gdb_load_rust_pretty_printers.py \
+                                 gdb_rust_pretty_printing.py
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS=\
+    $(foreach script,$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB), \
+        $(CFG_SRC_DIR)src/etc/$(script))
+
+DEBUGGER_BIN_SCRIPTS_GDB=rust-gdb
+DEBUGGER_BIN_SCRIPTS_GDB_ABS=\
+    $(foreach script,$(DEBUGGER_BIN_SCRIPTS_GDB), \
+        $(CFG_SRC_DIR)src/etc/$(script))
+
+
+## LLDB ##
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB=lldb_rust_formatters.py
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS=\
+    $(foreach script,$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB), \
+        $(CFG_SRC_DIR)src/etc/$(script))
+
+DEBUGGER_BIN_SCRIPTS_LLDB=rust-lldb
+DEBUGGER_BIN_SCRIPTS_LLDB_ABS=\
+    $(foreach script,$(DEBUGGER_BIN_SCRIPTS_LLDB), \
+        $(CFG_SRC_DIR)src/etc/$(script))
+
+
+## ALL ##
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL=$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB) \
+                                 $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB)
+DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL_ABS=$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS) \
+                                     $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS)
+DEBUGGER_BIN_SCRIPTS_ALL=$(DEBUGGER_BIN_SCRIPTS_GDB) \
+                         $(DEBUGGER_BIN_SCRIPTS_LLDB)
+DEBUGGER_BIN_SCRIPTS_ALL_ABS=$(DEBUGGER_BIN_SCRIPTS_GDB_ABS) \
+                             $(DEBUGGER_BIN_SCRIPTS_LLDB_ABS)
 
-DEBUGGER_SCRIPTS_ALL=$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $(DEBUGGER_BIN_SCRIPTS_ABS)
 
 # $(1) - the stage to copy to
 # $(2) - the host triple
 define DEF_INSTALL_DEBUGGER_SCRIPTS_HOST
 
-tmp/install-debugger-scripts$(1)_H_$(2).done: $$(DEBUGGER_SCRIPTS_ALL)
+tmp/install-debugger-scripts$(1)_H_$(2)-gdb.done: \
+  $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS) \
+  $$(DEBUGGER_BIN_SCRIPTS_GDB_ABS)
+	$(Q)mkdir -p $$(HBIN$(1)_H_$(2))
+	$(Q)mkdir -p $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)install $$(DEBUGGER_BIN_SCRIPTS_GDB_ABS) $$(HBIN$(1)_H_$(2))
+	$(Q)install $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS) $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)touch $$@
+
+tmp/install-debugger-scripts$(1)_H_$(2)-lldb.done: \
+  $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS) \
+  $$(DEBUGGER_BIN_SCRIPTS_LLDB_ABS)
+	$(Q)mkdir -p $$(HBIN$(1)_H_$(2))
+	$(Q)mkdir -p $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)install $$(DEBUGGER_BIN_SCRIPTS_LLDB_ABS) $$(HBIN$(1)_H_$(2))
+	$(Q)install $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS) $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)touch $$@
+
+tmp/install-debugger-scripts$(1)_H_$(2)-all.done: \
+  $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL_ABS) \
+  $$(DEBUGGER_BIN_SCRIPTS_ALL_ABS)
 	$(Q)mkdir -p $$(HBIN$(1)_H_$(2))
 	$(Q)mkdir -p $$(HLIB$(1)_H_$(2))/rustlib/etc
-	$(Q)install $(DEBUGGER_BIN_SCRIPTS_ABS) $$(HBIN$(1)_H_$(2))
-	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $$(HLIB$(1)_H_$(2))/rustlib/etc
+	$(Q)install $$(DEBUGGER_BIN_SCRIPTS_ALL_ABS) $$(HBIN$(1)_H_$(2))
+	$(Q)install $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL_ABS) $$(HLIB$(1)_H_$(2))/rustlib/etc
 	$(Q)touch $$@
+
+tmp/install-debugger-scripts$(1)_H_$(2)-none.done:
+	$(Q)touch $$@
+
 endef
 
 # Expand host make-targets for all stages
@@ -44,12 +95,36 @@ $(foreach stage,$(STAGES), \
 # $(3) is the host triple
 define DEF_INSTALL_DEBUGGER_SCRIPTS_TARGET
 
-tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3).done: $$(DEBUGGER_SCRIPTS_ALL)
+tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-gdb.done: \
+  $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS) \
+  $$(DEBUGGER_BIN_SCRIPTS_GDB_ABS)
+	$(Q)mkdir -p $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)mkdir -p $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)install $(DEBUGGER_BIN_SCRIPTS_GDB_ABS) $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS) $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)touch $$@
+
+tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-lldb.done: \
+  $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS) \
+  $$(DEBUGGER_BIN_SCRIPTS_LLDB_ABS)
 	$(Q)mkdir -p $$(TBIN$(1)_T_$(2)_H_$(3))
 	$(Q)mkdir -p $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
-	$(Q)install $(DEBUGGER_BIN_SCRIPTS_ABS) $$(TBIN$(1)_T_$(2)_H_$(3))
-	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)install $(DEBUGGER_BIN_SCRIPTS_LLDB_ABS) $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS) $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
 	$(Q)touch $$@
+
+tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-all.done: \
+  $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL_ABS) \
+  $$(DEBUGGER_BIN_SCRIPTS_ALL_ABS)
+	$(Q)mkdir -p $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)mkdir -p $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)install $(DEBUGGER_BIN_SCRIPTS_ALL_ABS) $$(TBIN$(1)_T_$(2)_H_$(3))
+	$(Q)install $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL_ABS) $$(TLIB$(1)_T_$(2)_H_$(3))/rustlib/etc
+	$(Q)touch $$@
+
+tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-none.done:
+	$(Q)touch $$@
+
 endef
 
 # Expand target make-targets for all stages

mk/main.mk

@@ -325,6 +325,12 @@ export CFG_DISABLE_INJECT_STD_VERSION
 # Per-stage targets and runner
 ######################################################################
 
+# Valid setting-strings are 'all', 'none', 'gdb', 'lldb'
+# This 'function' will determine which debugger scripts to copy based on a
+# target triple. See debuggers.mk for more information.
+TRIPLE_TO_DEBUGGER_SCRIPT_SETTING=\
+ $(if $(findstring windows,$(1)),none,$(if $(findstring darwin,$(1)),lldb,gdb))
+
 STAGES = 0 1 2 3
 
 define SREQ
@@ -357,7 +363,7 @@ else
 HSREQ$(1)_H_$(3) = \
 	$$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
 	$$(MKFILE_DEPS) \
-	tmp/install-debugger-scripts$(1)_H_$(3).done
+	tmp/install-debugger-scripts$(1)_H_$(3)-$$(call TRIPLE_TO_DEBUGGER_SCRIPT_SETTING,$(3)).done
 endif
 
 # Prerequisites for using the stageN compiler to build target artifacts
@@ -372,7 +378,7 @@ SREQ$(1)_T_$(2)_H_$(3) = \
 	$$(TSREQ$(1)_T_$(2)_H_$(3)) \
 	$$(foreach dep,$$(TARGET_CRATES), \
 	    $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
-	tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3).done
+	tmp/install-debugger-scripts$(1)_T_$(2)_H_$(3)-$$(call TRIPLE_TO_DEBUGGER_SCRIPT_SETTING,$(2)).done
 
 # Prerequisites for a working stageN compiler and complete set of target
 # libraries

mk/prepare.mk

@@ -144,6 +144,27 @@ prepare-target-$(2)-host-$(3)-$(1)-$(4): prepare-maybe-clean-$(4) \
           $$(call PREPARE_LIB,libcompiler-rt.a),),),)
 endef
 
+define INSTALL_GDB_DEBUGGER_SCRIPTS_COMMANDS
+	$(Q)$(PREPARE_BIN_CMD) $(DEBUGGER_BIN_SCRIPTS_GDB_ABS) $(PREPARE_DEST_BIN_DIR)
+	$(Q)$(PREPARE_LIB_CMD) $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_GDB_ABS) $(PREPARE_DEST_LIB_DIR)/rustlib/etc
+endef
+
+define INSTALL_LLDB_DEBUGGER_SCRIPTS_COMMANDS
+	$(Q)$(PREPARE_BIN_CMD) $(DEBUGGER_BIN_SCRIPTS_LLDB_ABS) $(PREPARE_DEST_BIN_DIR)
+	$(Q)$(PREPARE_LIB_CMD) $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_LLDB_ABS) $(PREPARE_DEST_LIB_DIR)/rustlib/etc
+endef
+
+define INSTALL_NO_DEBUGGER_SCRIPTS_COMMANDS
+	$(Q)echo "No debugger scripts will be installed for host $(PREPARE_HOST)"
+endef
+
+# $(1) is PREPARE_HOST
+INSTALL_DEBUGGER_SCRIPT_COMMANDS=$(if $(findstring windows,$(1)),\
+                                   $(INSTALL_NO_DEBUGGER_SCRIPTS_COMMANDS),\
+                                   $(if $(findstring darwin,$(1)),\
+                                     $(INSTALL_LLDB_DEBUGGER_SCRIPTS_COMMANDS),\
+                                     $(INSTALL_GDB_DEBUGGER_SCRIPTS_COMMANDS)))
+
 define DEF_PREPARE
 
 prepare-base-$(1): PREPARE_SOURCE_DIR=$$(PREPARE_HOST)/stage$$(PREPARE_STAGE)
@@ -170,9 +191,10 @@ prepare-host-dirs-$(1): prepare-maybe-clean-$(1)
 	$$(call PREPARE_DIR,$$(PREPARE_DEST_LIB_DIR)/rustlib/etc)
 	$$(call PREPARE_DIR,$$(PREPARE_DEST_MAN_DIR))
 
-prepare-debugger-scripts-$(1): prepare-host-dirs-$(1) $(DEBUGGER_SCRIPTS_ALL)
-	$$(Q)$$(PREPARE_BIN_CMD) $(DEBUGGER_BIN_SCRIPTS_ABS) $$(PREPARE_DEST_BIN_DIR)
-	$$(Q)$$(PREPARE_LIB_CMD) $(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ABS) $$(PREPARE_DEST_LIB_DIR)/rustlib/etc
+prepare-debugger-scripts-$(1): prepare-host-dirs-$(1) \
+                               $$(DEBUGGER_BIN_SCRIPTS_ALL_ABS) \
+                               $$(DEBUGGER_RUSTLIB_ETC_SCRIPTS_ALL_ABS)
+	$$(call INSTALL_DEBUGGER_SCRIPT_COMMANDS,$$(PREPARE_HOST))
 
 $$(foreach tool,$$(PREPARE_TOOLS), \
   $$(foreach host,$$(CFG_HOST), \

src/compiletest/runtest.rs

@@ -367,7 +367,6 @@ fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
     let DebuggerCommands {
         commands,
         check_lines,
-        use_gdb_pretty_printer,
         breakpoint_lines
     } = parse_debugger_commands(testfile, "gdb");
     let mut cmds = commands.connect("\n");
@@ -521,16 +520,11 @@ fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
                     if header::gdb_version_to_int(version.as_slice()) >
                         header::gdb_version_to_int("7.4") {
                         // Add the directory containing the pretty printers to
-                        // GDB's script auto loading safe path ...
+                        // GDB's script auto loading safe path
                         script_str.push_str(
                             format!("add-auto-load-safe-path {}\n",
                                     rust_pp_module_abs_path.replace("\\", "\\\\").as_slice())
                                 .as_slice());
-                        // ... and also the test directory
-                        script_str.push_str(
-                            format!("add-auto-load-safe-path {}\n",
-                                    config.build_base.as_str().unwrap().replace("\\", "\\\\"))
-                                .as_slice());
                     }
                 }
                 _ => {
@@ -543,6 +537,9 @@ fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
             // pretty printing, it just tells GDB to print values on one line:
             script_str.push_str("set print pretty off\n");
 
+            // Add the pretty printer directory to GDB's source-file search path
+            script_str.push_str(format!("directory {}\n", rust_pp_module_abs_path)[]);
+
             // Load the target executable
             script_str.push_str(format!("file {}\n",
                                         exe_file.as_str().unwrap().replace("\\", "\\\\"))
@@ -564,12 +561,6 @@ fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
                              script_str.as_slice(),
                              "debugger.script");
 
-            if use_gdb_pretty_printer {
-                // Only emit the gdb auto-loading script if pretty printers
-                // should actually be loaded
-                dump_gdb_autoload_script(config, testfile);
-            }
-
             // run debugger script with gdb
             #[cfg(windows)]
             fn debugger() -> String {
@@ -611,19 +602,6 @@ fn run_debuginfo_gdb_test(config: &Config, props: &TestProps, testfile: &Path) {
     }
 
     check_debugger_output(&debugger_run_result, check_lines.as_slice());
-
-    fn dump_gdb_autoload_script(config: &Config, testfile: &Path) {
-        let mut script_path = output_base_name(config, testfile);
-        let mut script_file_name = script_path.filename().unwrap().to_vec();
-        script_file_name.push_all("-gdb.py".as_bytes());
-        script_path.set_filename(script_file_name.as_slice());
-
-        let script_content = "import gdb_rust_pretty_printing\n\
-                              gdb_rust_pretty_printing.register_printers(gdb.current_objfile())\n"
-                             .as_bytes();
-
-        File::create(&script_path).write(script_content).unwrap();
-    }
 }
 
 fn find_rust_src_root(config: &Config) -> Option<Path> {
@@ -781,7 +759,6 @@ struct DebuggerCommands {
     commands: Vec<String>,
     check_lines: Vec<String>,
     breakpoint_lines: Vec<uint>,
-    use_gdb_pretty_printer: bool
 }
 
 fn parse_debugger_commands(file_path: &Path, debugger_prefix: &str)
@@ -794,7 +771,6 @@ fn parse_debugger_commands(file_path: &Path, debugger_prefix: &str)
     let mut breakpoint_lines = vec!();
     let mut commands = vec!();
     let mut check_lines = vec!();
-    let mut use_gdb_pretty_printer = false;
     let mut counter = 1;
     let mut reader = BufferedReader::new(File::open(file_path).unwrap());
     for line in reader.lines() {
@@ -804,10 +780,6 @@ fn parse_debugger_commands(file_path: &Path, debugger_prefix: &str)
                     breakpoint_lines.push(counter);
                 }
 
-                if line.as_slice().contains("gdb-use-pretty-printer") {
-                    use_gdb_pretty_printer = true;
-                }
-
                 header::parse_name_value_directive(
                         line.as_slice(),
                         command_directive.as_slice()).map(|cmd| {
@@ -832,7 +804,6 @@ fn parse_debugger_commands(file_path: &Path, debugger_prefix: &str)
         commands: commands,
         check_lines: check_lines,
         breakpoint_lines: breakpoint_lines,
-        use_gdb_pretty_printer: use_gdb_pretty_printer,
     }
 }
 

src/etc/gdb_load_rust_pretty_printers.py

@@ -0,0 +1,12 @@
+# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+# file at the top-level directory of this distribution and at
+# http://rust-lang.org/COPYRIGHT.
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+import gdb_rust_pretty_printing
+gdb_rust_pretty_printing.register_printers(gdb.current_objfile())

src/etc/rust-gdb

@@ -0,0 +1,23 @@
+#!/bin/sh
+# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+# file at the top-level directory of this distribution and at
+# http://rust-lang.org/COPYRIGHT.
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+# Exit if anything fails
+set -e
+
+# Find out where the pretty printer Python module is
+RUSTC_SYSROOT=`rustc --print=sysroot`
+GDB_PYTHON_MODULE_DIRECTORY="$RUSTC_SYSROOT/lib/rustlib/etc"
+
+# Run GDB with the additional arguments that load the pretty printers
+PYTHONPATH="$PYTHONPATH:$GDB_PYTHON_MODULE_DIRECTORY" gdb \
+  -d "$GDB_PYTHON_MODULE_DIRECTORY" \
+  -iex "add-auto-load-safe-path $GDB_PYTHON_MODULE_DIRECTORY" \
+  "$@"

src/librustc/lint/builtin.rs

@@ -654,6 +654,7 @@ impl LintPass for UnusedAttributes {
             "static_assert",
             "thread_local",
             "no_debug",
+            "omit_gdb_pretty_printer_section",
             "unsafe_no_drop_flag",
 
             // used in resolve

src/librustc_llvm/lib.rs

@@ -1743,7 +1743,8 @@ extern {
                                           isOptimized: bool,
                                           Flags: *const c_char,
                                           RuntimeVer: c_uint,
-                                          SplitName: *const c_char);
+                                          SplitName: *const c_char)
+                                          -> DIDescriptor;
 
     pub fn LLVMDIBuilderCreateFile(Builder: DIBuilderRef,
                                    Filename: *const c_char,

src/librustc_trans/trans/base.rs

@@ -2673,6 +2673,8 @@ pub fn create_entry_wrapper(ccx: &CrateContext,
         unsafe {
             llvm::LLVMPositionBuilderAtEnd(bld, llbb);
 
+            debuginfo::insert_reference_to_gdb_debug_scripts_section_global(ccx);
+
             let (start_fn, args) = if use_start_lang_item {
                 let start_def_id = match ccx.tcx().lang_items.require(StartFnLangItem) {
                     Ok(id) => id,