Hide the C++ stack by default and add hints (#29042)

* default not show cpp statck & add hint

* fix failed unittest

* fix failed unittests

paddle/fluid/framework/op_call_stack.cc

@@ -25,11 +25,11 @@ std::string InsertIndentationIntoEachLine(const std::string &str) {
   std::ostringstream sout;
   size_t start_pos = 0;
   size_t end_pos = 0;
-  while ((end_pos = str.find("\n", start_pos)) != std::string::npos) {
-    sout << "    " << str.substr(start_pos, end_pos + 1);
+  while ((end_pos = str.find_first_of("\n", start_pos)) != std::string::npos) {
+    sout << "    " << str.substr(start_pos, end_pos - start_pos + 1);
     start_pos = end_pos + 1;
   }
-  sout << "    " << str.substr(start_pos, end_pos);
+  sout << "    " << str.substr(start_pos, end_pos - start_pos + 1);
   return sout.str();
 }
 
@@ -58,6 +58,7 @@ void InsertCallStackInfo(const std::string &type, const AttributeMap &attrs,
       sout << "\n  " << line;
     }
   }
+  VLOG(1) << exception->error_str();
   // Step 2. Construct final call stack & append error op name
   if (FLAGS_call_stack_level > 1) {
     sout << exception->what();

paddle/fluid/framework/op_registry_test.cc

@@ -118,7 +118,7 @@ TEST(OpRegistry, IllegalAttr) {
     paddle::framework::OpRegistry::CreateOp(op_desc);
   } catch (paddle::platform::EnforceNotMet& err) {
     caught = true;
-    std::string msg = "OutOfRangeError";
+    std::string msg = "OutOfRange";
     std::string err_msg = err.what();
     ASSERT_TRUE(err_msg.find(msg) != std::string::npos);
   }
@@ -152,7 +152,7 @@ TEST(OpRegistry, CustomChecker) {
     paddle::framework::OpRegistry::CreateOp(op_desc);
   } catch (paddle::platform::EnforceNotMet& err) {
     caught = true;
-    std::string msg = "InvalidArgumentError";
+    std::string msg = "InvalidArgument";
     std::string err_msg = err.what();
     ASSERT_TRUE(err_msg.find(msg) != std::string::npos);
   }

paddle/fluid/platform/enforce.h

@@ -279,8 +279,15 @@ inline std::string GetErrorSumaryString(StrType&& what, const char* file,
             "Summary:\n----------------------\n";
   }
   sout << string::Sprintf("%s (at %s:%d)", std::forward<StrType>(what), file,
-                          line)
-       << std::endl;
+                          line);
+  if (FLAGS_call_stack_level < 2) {
+    // NOTE(chenweihang): if no C++ backtrace, give a hint to tell users
+    // how to show C++ backtrace, this hint only show in 2.0-rc verison,
+    // and will be removed in 2.0 official version
+    sout << "\n  [Hint: If need to show C++ stacktraces, please set "
+            "`FlAGS_call_stack_level=2`.]";
+  }
+  sout << std::endl;
   return sout.str();
 }
 

paddle/fluid/platform/errors_test.cc

@@ -28,8 +28,7 @@ using namespace paddle::platform::errors;  // NOLINT
     } catch (paddle::platform::EnforceNotMet & error) {                    \
       caught_exception = true;                                             \
       std::string ex_msg = error.what();                                   \
-      EXPECT_TRUE(ex_msg.find(#EFUNC "Error: paddle throw test.") != \
-                  std::string::npos);                                \
+      EXPECT_TRUE(ex_msg.find("paddle throw test.") != std::string::npos); \
     }                                                                      \
     EXPECT_TRUE(caught_exception);                                         \
   } while (0)
@@ -42,8 +41,7 @@ using namespace paddle::platform::errors;  // NOLINT
     } catch (paddle::platform::EnforceNotMet & error) {                      \
       caught_exception = true;                                               \
       std::string ex_msg = error.what();                                     \
-      EXPECT_TRUE(ex_msg.find(#EFUNC "Error: paddle enforce test.") != \
-                  std::string::npos);                                  \
+      EXPECT_TRUE(ex_msg.find("paddle enforce test.") != std::string::npos); \
     }                                                                        \
     EXPECT_TRUE(caught_exception);                                           \
   } while (0)
@@ -57,8 +55,7 @@ using namespace paddle::platform::errors;  // NOLINT
     } catch (paddle::platform::EnforceNotMet & error) {                  \
       caught_exception = true;                                           \
       std::string ex_msg = error.what();                                 \
-      EXPECT_TRUE(                                                       \
-          ex_msg.find(#EFUNC "Error: paddle enforce not null test.") !=  \
+      EXPECT_TRUE(ex_msg.find("paddle enforce not null test.") !=        \
                   std::string::npos);                                    \
     }                                                                    \
     EXPECT_TRUE(caught_exception);                                       \
@@ -72,7 +69,7 @@ using namespace paddle::platform::errors;  // NOLINT
     } catch (paddle::platform::EnforceNotMet & error) {               \
       caught_exception = true;                                        \
       std::string ex_msg = error.what();                              \
-      EXPECT_TRUE(ex_msg.find(#EFUNC "Error: paddle enforce equal test.") != \
+      EXPECT_TRUE(ex_msg.find("paddle enforce equal test.") !=        \
                   std::string::npos);                                 \
     }                                                                 \
     EXPECT_TRUE(caught_exception);                                    \

paddle/fluid/platform/flags.cc

@@ -499,7 +499,7 @@ DEFINE_bool(use_mkldnn, false, "Use MKLDNN to run");
  * message summary will be shown.
  */
 DEFINE_int32(
-    call_stack_level, 2,
+    call_stack_level, 1,
     "Determine the call stack to print when error or exeception happens."
     // TODO(zhiqiu): implement logic of FLAGS_call_stack_level==0
     // "If FLAGS_call_stack_level == 0, only the error message summary will be "

python/paddle/fluid/tests/unittests/mkldnn/test_matmul_mkldnn_op.py

@@ -437,7 +437,7 @@ class TestMatMulOpTransposeReshapeTransposeAxisNotSupportedException(
 
     def test_check_output(self):
         self.assertRaises(AttributeError, self.check_raise_error,
-                          'InvalidArgumentError: supported transpose axis '
+                          'supported transpose axis '
                           'for the fuse are {0, 2, 1, 3}')
 
 
@@ -449,9 +449,8 @@ class TestMatMulOpTransposeReshapeTransposeRankNotSupportedException(
         self.out = np.matmul(self.x, self.y)
 
     def test_check_output(self):
-        self.assertRaises(
-            AttributeError, self.check_raise_error,
-            'InvalidArgumentError: transpose_out supported rank is 4')
+        self.assertRaises(AttributeError, self.check_raise_error,
+                          'transpose_out supported rank is 4')
 
 
 class TestMatMulOpTransposeReshapeRankOfReshapeNotSupportedException(
@@ -462,9 +461,8 @@ class TestMatMulOpTransposeReshapeRankOfReshapeNotSupportedException(
         self.out = np.matmul(self.x, self.y)
 
     def test_check_output(self):
-        self.assertRaises(
-            AttributeError, self.check_raise_error,
-            'InvalidArgumentError: reshape_out supported rank is 3')
+        self.assertRaises(AttributeError, self.check_raise_error,
+                          'reshape_out supported rank is 3')
 
 
 if __name__ == "__main__":

python/paddle/fluid/tests/unittests/test_prelu_op.py

@@ -83,10 +83,12 @@ class TestFunctionalPReluAPI(unittest.TestCase):
             # The input type must be Variable.
             self.assertRaises(TypeError, F.prelu, x=1, weight=weight_fp32)
             # The input dtype must be float16, float32, float64.
-            x_int32 = paddle.fluid.data(name='x_int32', shape=[2, 3], dtype='int32')
+            x_int32 = paddle.fluid.data(
+                name='x_int32', shape=[2, 3], dtype='int32')
             self.assertRaises(TypeError, F.prelu, x=x_int32, weight=weight_fp32)
             # support the input dtype is float16
-            x_fp16 = paddle.fluid.data(name='x_fp16', shape=[2, 3], dtype='float16')
+            x_fp16 = paddle.fluid.data(
+                name='x_fp16', shape=[2, 3], dtype='float16')
             F.prelu(x=x_fp16, weight=weight_fp32)
 
 
@@ -100,7 +102,8 @@ class TestNNPReluAPI(unittest.TestCase):
         startup_program = paddle.static.Program()
         train_program = paddle.static.Program()
         with paddle.static.program_guard(train_program, startup_program):
-            x = paddle.fluid.data(name='X', shape=self.x_np.shape, dtype='float32')
+            x = paddle.fluid.data(
+                name='X', shape=self.x_np.shape, dtype='float32')
             m = paddle.nn.PReLU()
             out = m(x)
             exe = paddle.static.Executor(self.place)
@@ -296,7 +299,7 @@ class TestModeError(unittest.TestCase):
             try:
                 y = prelu_t(x, 'any')
             except Exception as e:
-                assert (e.args[0].find('InvalidArgumentError') != -1)
+                assert (e.args[0].find('InvalidArgument') != -1)
 
 
 if __name__ == "__main__":