The return value after calls to functions CoreProcessFvImageFile,
CoreStartImage,  CoreGetDepexSectionAndPreProccess,
CoreInternalAddMemorySpace, CoreAddIoSpace, CoreAllocateMemorySpace
and CoreCloseProtocol is stored in Status, but it is not made of any
use and later Status gets overridden.

One option assuming this is deliberate, would be to remove the return
value storage in Status.
Otherwise, simply add appropriate debug messages conditionally.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4219

Cc: Dandan Bi <dandan...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Co-authored-by: Veeresh Sangolli <veeresh.sango...@dellteam.com>
Signed-off-by: Ranbir Singh <ranbir.sin...@dell.com>
Signed-off-by: Ranbir Singh <rsi...@ventanamicro.com>
---
 MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c | 15 +++++++++++++++
 MdeModulePkg/Core/Dxe/Gcd/Gcd.c               | 15 +++++++++++++++
 MdeModulePkg/Core/Dxe/Image/Image.c           |  3 +++
 3 files changed, 33 insertions(+)

diff --git a/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c 
b/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c
index cf9d55687766..f53a2513457a 100644
--- a/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c
+++ b/MdeModulePkg/Core/Dxe/Dispatcher/Dispatcher.c
@@ -506,6 +506,10 @@ CoreDispatcher (
         // Produce a firmware volume block protocol for FvImage so it gets 
dispatched from.
         //
         Status = CoreProcessFvImageFile (DriverEntry->Fv, 
DriverEntry->FvHandle, &DriverEntry->FileName);
+        if (EFI_ERROR (Status)) {
+          DEBUG ((DEBUG_DISPATCH, "Failed to produce a FVB protocol for Fv %p 
FvHandle %p and FileName %g.\n",
+            DriverEntry->Fv, DriverEntry->FvHandle, &DriverEntry->FileName));
+        }
       } else {
         REPORT_STATUS_CODE_WITH_EXTENDED_DATA (
           EFI_PROGRESS_CODE,
@@ -516,6 +520,10 @@ CoreDispatcher (
         ASSERT (DriverEntry->ImageHandle != NULL);
 
         Status = CoreStartImage (DriverEntry->ImageHandle, NULL, NULL);
+        if (EFI_ERROR (Status)) {
+          DEBUG ((DEBUG_DISPATCH, "Failed to transfer control to a loaded 
image's entry point for ImageHandle %p.\n",
+            DriverEntry->ImageHandle));
+        }
 
         REPORT_STATUS_CODE_WITH_EXTENDED_DATA (
           EFI_PROGRESS_CODE,
@@ -549,6 +557,13 @@ CoreDispatcher (
         // If Section Extraction Protocol did not let the Depex be read before 
retry the read
         //
         Status = CoreGetDepexSectionAndPreProccess (DriverEntry);
+        if (EFI_ERROR (Status)) {
+          if (Status == EFI_PROTOCOL_ERROR) {
+            DEBUG ((DEBUG_DISPATCH, "Section extraction protocol failure for 
DriverEntry %p.\n", DriverEntry));
+          } else {
+            DEBUG ((DEBUG_DISPATCH, "No Depex, assume UEFI 2.0 driver model 
for DriverEntry %p.\n", DriverEntry));
+          }
+        }
       }
 
       if (DriverEntry->Dependent) {
diff --git a/MdeModulePkg/Core/Dxe/Gcd/Gcd.c b/MdeModulePkg/Core/Dxe/Gcd/Gcd.c
index 39fa2adf9366..384fee600d85 100644
--- a/MdeModulePkg/Core/Dxe/Gcd/Gcd.c
+++ b/MdeModulePkg/Core/Dxe/Gcd/Gcd.c
@@ -2638,6 +2638,9 @@ CoreInitializeGcdServices (
                    ResourceHob->ResourceLength,
                    Capabilities
                    );
+        if (EFI_ERROR (Status)) {
+          DEBUG ((DEBUG_GCD, "Failed to add a segment of memory to GCD map, 
Status = %r\n", Status));
+        }
       }
 
       if (GcdIoType != EfiGcdIoTypeNonExistent) {
@@ -2646,6 +2649,9 @@ CoreInitializeGcdServices (
                    ResourceHob->PhysicalStart,
                    ResourceHob->ResourceLength
                    );
+        if (EFI_ERROR (Status)) {
+          DEBUG ((DEBUG_GCD, "Failed to add reserved I/O or I/O resources, 
Status = %r\n", Status));
+        }
       }
     }
   }
@@ -2668,6 +2674,9 @@ CoreInitializeGcdServices (
                gDxeCoreImageHandle,
                NULL
                );
+    if (EFI_ERROR (Status)) {
+      DEBUG ((DEBUG_GCD, "Failed to allocate memory space, Status = %r\n", 
Status));
+    }
   }
 
   //
@@ -2715,6 +2724,9 @@ CoreInitializeGcdServices (
                             gDxeCoreImageHandle,
                             NULL
                             );
+      if (EFI_ERROR (Status)) {
+        DEBUG ((DEBUG_GCD, "Failed to allocate memory space, Status = %r\n", 
Status));
+      }
     }
   }
 
@@ -2763,6 +2775,9 @@ CoreInitializeGcdServices (
                    gDxeCoreImageHandle,
                    NULL
                    );
+        if (EFI_ERROR (Status)) {
+          DEBUG ((DEBUG_GCD, "Failed to allocate memory space, Status = %r\n", 
Status));
+        }
       }
     }
   }
diff --git a/MdeModulePkg/Core/Dxe/Image/Image.c 
b/MdeModulePkg/Core/Dxe/Image/Image.c
index 9dbfb2a1fad2..769e2d379051 100644
--- a/MdeModulePkg/Core/Dxe/Image/Image.c
+++ b/MdeModulePkg/Core/Dxe/Image/Image.c
@@ -1010,6 +1010,9 @@ CoreUnloadAndCloseImage (
                              Image->Handle,
                              OpenInfo[OpenInfoIndex].ControllerHandle
                              );
+                  if (EFI_ERROR (Status)) {
+                    DEBUG ((DEBUG_WARN, "Failed to close protocol on Handle 
%p\n", HandleBuffer[HandleIndex]));
+                  }
                 }
               }
 
-- 
2.34.1



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