[PATCH] gdb 9.1: fix of unnecessary gdb termination

[Паша Клюев]

Fixing a problem that occurs when debugging programs compiled by Intel compiler, 
when applying a patch, the debugger works further, let there be an unknown type, but gdb should work.
diff ./gdb-9.1/gdb/dwarf2read.c ./gdb-9.1-patched/gdb/dwarf2read.c
--- ./gdb-9.1/gdb/dwarf2read.c    2020-02-08 15:50:14.000000000 +0300
+++ ./gdb-9.1-patched/gdb/dwarf2read.c    2020-05-21 18:00:46.297640168 +0300
@@ -23521,11 +23521,17 @@
                 || cu->per_cu->is_dwz),
                ref_cu);
   if (!die)
-    error (_("Dwarf Error: Cannot find DIE at %s referenced from DIE "
+    /* patch begin
+    Cause:
+        Exit from gdb by incorrect DWARF information in debugging file
+    Fix:
+        Error message in gdb was changed to warning message
+    */
+    warning (_("Dwarf Error: Cannot find DIE at %s referenced from DIE "
+    /* patch end */
        "at %s [in module %s]"),
        sect_offset_str (sect_off), sect_offset_str (src_die->sect_off),
        objfile_name (cu->per_cu->dwarf2_per_objfile->objfile));
-
   return die;
 }
 
diff ./gdb-9.1/gdb/f-typeprint.c ./gdb-9.1-patched/gdb/f-typeprint.c
--- ./gdb-9.1/gdb/f-typeprint.c    2020-02-08 15:49:29.000000000 +0300
+++ ./gdb-9.1-patched/gdb/f-typeprint.c    2020-05-21 18:01:49.828195999 +0300
@@ -458,7 +458,15 @@
       if (TYPE_NAME (type) != NULL)
     fprintfi_filtered (level, stream, "%s", TYPE_NAME (type));
       else
-    error (_("Invalid type code (%d) in symbol table."), TYPE_CODE (type));
+    /* PD patch begin
+    Cause:
+        Exit from gdb by unknown variable's data type
+    Fix:
+        Error message was changed to print the data type 'UNKNOWN TYPE'
+    */
+    fprintfi_filtered (level, stream, "UNKNOWN TYPE");
+    /* PD patch end */
+
       break;
     }
 
 
 
 
--
Regards Pavel.