From 6d1e095a4197f8e242804d67c5c85b375505dd5e Mon Sep 17 00:00:00 2001
From: Silent <zdanio95@gmail.com>
Date: Fri, 5 Mar 2021 22:21:48 +0100
Subject: [PATCH 1/2] Fix XeUnloadSection errorerously zeroing memory

Makes Apex/Racing Evoluzione reach menus
---
 src/core/kernel/exports/EmuKrnlXe.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/core/kernel/exports/EmuKrnlXe.cpp b/src/core/kernel/exports/EmuKrnlXe.cpp
index ef30a3ee3..6a8c28f89 100644
--- a/src/core/kernel/exports/EmuKrnlXe.cpp
+++ b/src/core/kernel/exports/EmuKrnlXe.cpp
@@ -126,9 +126,8 @@ XBSYSAPI EXPORTNUM(328) xbox::ntstatus_xt NTAPI xbox::XeUnloadSection
 
 		// Free the section and the physical memory in use if necessary
 		if (Section->SectionReferenceCount == 0) {
-			memset(Section->VirtualAddress, 0, Section->VirtualSize);
-
 			// REMARK: the following can be tested with Broken Sword - The Sleeping Dragon, RalliSport Challenge, ...
+			// Test-case: Apex/Racing Evoluzione requires the memory NOT to be zeroed
 
 			VAddr BaseAddress = (VAddr)Section->VirtualAddress;
 			VAddr EndingAddress = (VAddr)Section->VirtualAddress + Section->VirtualSize;

From 9ea0051d927ae96a9f7c44d2f1349e9612b0c782 Mon Sep 17 00:00:00 2001
From: Silent <zdanio95@gmail.com>
Date: Fri, 5 Mar 2021 22:30:27 +0100
Subject: [PATCH 2/2] Xbe: Read section headers and library versions in one go

---
 src/common/xbe/Xbe.cpp | 38 ++++++++++++--------------------------
 1 file changed, 12 insertions(+), 26 deletions(-)

diff --git a/src/common/xbe/Xbe.cpp b/src/common/xbe/Xbe.cpp
index d98b51a77..be4947812 100644
--- a/src/common/xbe/Xbe.cpp
+++ b/src/common/xbe/Xbe.cpp
@@ -194,25 +194,18 @@ Xbe::Xbe(const char *x_szFilename, bool bFromGUI)
 
     // read Xbe section headers
     {
-        printf("Xbe::Xbe: Reading Section Headers...\n");
+        printf("Xbe::Xbe: Reading Section Headers...");
 
         fseek(XbeFile, m_Header.dwSectionHeadersAddr - m_Header.dwBaseAddr, SEEK_SET);
 
         m_SectionHeader = new SectionHeader[m_Header.dwSections];
-
-        for(uint32_t v=0;v<m_Header.dwSections;v++)
+        if (fread(m_SectionHeader, sizeof(*m_SectionHeader), m_Header.dwSections, XbeFile) != m_Header.dwSections)
         {
-            printf("Xbe::Xbe: Reading Section Header 0x%.04X...", v);
-
-            if(fread(&m_SectionHeader[v], sizeof(*m_SectionHeader), 1, XbeFile) != 1)
-            {
-                sprintf(szBuffer, "Unexpected end of file while reading Xbe Section Header %d (%Xh)", v, v);
-                SetFatalError(szBuffer);
-                goto cleanup;
-            }
-
-            printf("OK\n");
+            SetFatalError("Unexpected end of file while reading Xbe Section Headers");
+            goto cleanup;
         }
+
+        printf("OK\n");
     }
 
     // read Xbe section names
@@ -246,25 +239,18 @@ Xbe::Xbe(const char *x_szFilename, bool bFromGUI)
     // read Xbe library versions
 	if (m_Header.dwLibraryVersionsAddr != 0)
 	{
-		printf("Xbe::Xbe: Reading Library Versions...\n");
+		printf("Xbe::Xbe: Reading Library Versions...");
 
 		fseek(XbeFile, m_Header.dwLibraryVersionsAddr - m_Header.dwBaseAddr, SEEK_SET);
 
 		m_LibraryVersion = new LibraryVersion[m_Header.dwLibraryVersions];
-
-		for (uint32_t v = 0; v < m_Header.dwLibraryVersions; v++)
+		if (fread(m_LibraryVersion, sizeof(*m_LibraryVersion), m_Header.dwLibraryVersions, XbeFile) != m_Header.dwLibraryVersions)
 		{
-			printf("Xbe::Xbe: Reading Library Version 0x%.04X...", v);
-
-			if (fread(&m_LibraryVersion[v], sizeof(*m_LibraryVersion), 1, XbeFile) != 1)
-			{
-				sprintf(szBuffer, "Unexpected end of file while reading Xbe Library Version %d (%Xh)", v, v);
-				SetFatalError(szBuffer);
-				goto cleanup;
-			}
-
-			printf("OK\n");
+			SetFatalError("Unexpected end of file while reading Xbe Library Versions");
+			goto cleanup;
 		}
+
+		printf("OK\n");
 	}
 
     // read Xbe sections