Update gnu-efi, GitHub Actions and LoongArch toolchain to latest

* Also remove unused/obsoleted gEfiUnicodeCollationProtocolGuid references
  and clone from EDK2 stable releases to avoid bad surprises...

Author: pbatard

.github/workflows/codeql.yml

@@ -22,13 +22,13 @@ jobs:
 
     steps:
     - name: Check out repository and submodules
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
         submodules: recursive
 
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
+      uses: github/codeql-action/init@v4
       with:
         languages: cpp
 
@@ -39,4 +39,4 @@ jobs:
       run: msbuild ${{ env.SOLUTION_FILE_PATH }} /m /p:Configuration=${{ env.BUILD_CONFIGURATION }},Platform=${{ env.TARGET_PLATFORM }}
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      uses: github/codeql-action/analyze@v4

.github/workflows/coverity.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Checkout repository and submodules
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
         submodules: recursive

.github/workflows/linux.yml

@@ -16,8 +16,9 @@ env:
   GCC5_AARCH64_PREFIX: aarch64-linux-gnu-
   GCC5_RISCV64_PREFIX: riscv64-linux-gnu-
   GCC5_LOONGARCH64_PREFIX: loongarch64-unknown-linux-gnu-
-  LOONGARCH64_TOOLCHAIN_TAG: 2024.11.01
-  LOONGARCH64_TOOLCHAIN_NAME: x86_64-cross-tools-loongarch64-binutils_2.43.1-gcc_14.2.0-glibc_2.40.tar.xz
+  EDK2_STABLE_TAG: edk2-stable202508.01
+  LOONGARCH64_TOOLCHAIN_TAG: 2025.08.08
+  LOONGARCH64_TOOLCHAIN_NAME: x86_64-cross-tools-loongarch64-binutils_2.45-gcc_15.1.0-glibc_2.42.tar.xz
 
 jobs:
   build:
@@ -48,7 +49,7 @@ jobs:
 
     steps:
     - name: Check out repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
 
@@ -73,7 +74,7 @@ jobs:
 
     - name: Set up EDK2
       run: |
-        git clone --recursive https://github.com/tianocore/edk2.git
+        git clone --branch ${EDK2_STABLE_TAG} --recursive https://github.com/tianocore/edk2.git
         make -C edk2/BaseTools
 
     - name: Build UEFI bootloader

.github/workflows/windows.yml

@@ -22,7 +22,7 @@ jobs:
 
     steps:
     - name: Check out repository and submodules
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0
         submodules: recursive

.vs/gnu-efi.vcxproj

@@ -401,6 +401,7 @@
     <ClCompile Include="..\gnu-efi\lib\smbios.c" />
     <ClCompile Include="..\gnu-efi\lib\sread.c" />
     <ClCompile Include="..\gnu-efi\lib\str.c" />
+    <ClCompile Include="..\gnu-efi\lib\va_print.c" />
     <ClCompile Include="..\gnu-efi\lib\x86_64\initplat.c">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</ExcludedFromBuild>

.vs/gnu-efi.vcxproj.filters

@@ -119,6 +119,9 @@
     <ClCompile Include="..\gnu-efi\lib\aarch64\math.c">
       <Filter>Source Files\aarch64</Filter>
     </ClCompile>
+    <ClCompile Include="..\gnu-efi\lib\va_print.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\gnu-efi\inc\efi.h">

gnu-efi

@@ -53,8 +53,6 @@
   gEfiDiskIo2ProtocolGuid
   gEfiLoadedImageProtocolGuid 
   gEfiSimpleFileSystemProtocolGuid
-  gEfiUnicodeCollationProtocolGuid
-  gEfiUnicodeCollation2ProtocolGuid
 
 [Pcd]
   gEfiMdePkgTokenSpaceGuid.PcdUefiVariableDefaultLang