Better log messages, small user-visible info fixes

src/dwarf/dwarf_call_site.c

@@ -125,7 +125,7 @@ bool call_site_handle_dwarf(pst_call_site* site, Dwarf_Die* child)
                         pst_dwarf_expr_fini(&loc);
                         pst_log(SEVERITY_DEBUG, "  DW_AT_GNU_call_site_value:\"%s\" ==> 0x%lX", site->ctx->buff, param->value);
                     } else {
-                        pst_log(SEVERITY_ERROR, "Failed to calculate DW_AT_location expression: %s", site->ctx->buff);
+                        pst_log(SEVERITY_WARNING, "Failed to calculate DW_AT_location expression: %s", site->ctx->buff);
                         del_param(param);
                         pst_dwarf_expr_fini(&loc);
                         return false;

src/dwarf/dwarf_function.c

@@ -158,7 +158,7 @@ static bool handle_lexical_block(pst_function* fn, Dwarf_Die* result)
                     pst_log(SEVERITY_DEBUG, "Skipping Lexical block tag 'DW_TAG_inlined_subroutine'");
                     break;
                 default:
-                    pst_log(SEVERITY_DEBUG, "Unknown Lexical block tag 0x%X", dwarf_tag(&child));
+                    pst_log(SEVERITY_WARNING, "Unknown Lexical block tag 0x%X", dwarf_tag(&child));
                     break;
             }
         }while (dwarf_siblingof (&child, &child) == 0);
@@ -372,7 +372,7 @@ bool function_handle_dwarf(pst_function * fn, Dwarf_Die* d)
             // Also handle:
             // DW_AT_inline
             default:
-                pst_log(SEVERITY_DEBUG, "Unknown TAG of function: 0x%X", dwarf_tag(&result));
+                pst_log(SEVERITY_WARNING, "Unknown TAG of function: 0x%X", dwarf_tag(&result));
                 break;
         }
     } while(dwarf_siblingof(&result, &result) == 0);
@@ -464,7 +464,7 @@ void pst_function_fini(pst_function* fn)
     clear(fn);
 
     if(fn->frame) {
-        // use free here because it was allocated out of our control by libdw
+        // use free() here because it was allocated out of our control by libdw
         free(fn->frame);
     }
 

src/dwarf/dwarf_operations.c

@@ -16,6 +16,7 @@
 // not implemented operations
 static bool dw_op_notimpl(pst_dwarf_stack* stack, const dwarf_op_map* map, Dwarf_Word op1, Dwarf_Word op2)
 {
+    pst_log(SEVERITY_WARNING, "Not implemented DWARF operation %s(0x%X)", map->op_name, map->op_num);
 	return false;
 }
 

src/dwarf/dwarf_parameter.c

@@ -423,7 +423,7 @@ bool parameter_handle_dwarf(pst_parameter* param, Dwarf_Die* result, pst_functio
             param->info.value = param->location.value;
             param->info.flags |= PARAM_HAS_VALUE;
         } else {
-            pst_log(SEVERITY_ERROR, "Failed to calculate DW_AT_location expression: %s", param->ctx->buff);
+            pst_log(SEVERITY_WARNING, "Failed to calculate DW_AT_location expression: %s", param->ctx->buff);
         }
     } else if(dwarf_hasattr(result, DW_AT_const_value)) {
         param->info.flags |= PARAM_CONST;