From: pgao2 <pgao2@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Mon, 13 Sep 2010 02:42:14 +0000 (+0000)
Subject: Fix the issue that might prevent single step in PeCoffExtraActionLib (right after... 
X-Git-Tag: edk2-stable201903~15551
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=0a16169be8fcade376d291fd70371e262b2592ee

Fix the issue that might prevent single step in PeCoffExtraActionLib (right after triggering breakpoint to notify image load/unload) work.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10870 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugAgent.c b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugAgent.c
index 39b24c39c6..7834f885cc 100644
--- a/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugAgent.c
+++ b/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugAgent.c
@@ -384,6 +384,11 @@ GetBreakCause (
       //
       if ((CpuContext->Dr6 & BIT14) != 0) {
         Cause = DEBUG_DATA_BREAK_CAUSE_STEPPING;
+        //
+        // If it's single step, no need to check DR0, to ensure single step work in PeCoffExtraActionLib
+        // (right after triggering a breakpoint to report image load/unload).
+        //
+        return Cause;
 
       } else {
         Cause = DEBUG_DATA_BREAK_CAUSE_HW_BREAKPOINT;