Debugger: Add GNU demangler

This code is taken from GCC 13.2.0 with a number of modifications applied. See the included readme for more information.
PCSX2 · Aug 26, 2024 · e23df7a · e23df7a
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diff --git a/3rdparty/demangler/CMakeLists.txt b/3rdparty/demangler/CMakeLists.txt
@@ -0,0 +1,27 @@
+add_library(demanglegnu STATIC
+	src/alloca.c
+	src/cp-demangle.c
+	src/cplus-dem.c
+	src/d-demangle.c
+	src/dyn-string.c
+	src/getopt1.c
+	src/getopt.c
+	src/rust-demangle.c
+	src/safe-ctype.c
+	src/xexit.c
+	src/xmalloc.c
+	src/xmemdup.c
+	src/xstrdup.c
+)
+
+set(GNU_DEMANGLER_FLAGS -DHAVE_DECL_BASENAME=1 -DHAVE_LIMITS_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1)
+
+target_include_directories(demanglegnu PUBLIC include)
+target_compile_definitions(demanglegnu PUBLIC ${GNU_DEMANGLER_FLAGS})
+
+add_executable(demangler_fuzzer testsuite/demangler-fuzzer.c)
+add_executable(demangler_test testsuite/test-demangle.c)
+target_link_libraries(demangler_fuzzer demanglegnu)
+target_link_libraries(demangler_test demanglegnu)
+target_compile_definitions(demangler_fuzzer PUBLIC ${GNU_DEMANGLER_FLAGS})
+target_compile_definitions(demangler_test PUBLIC ${GNU_DEMANGLER_FLAGS})
diff --git a/3rdparty/demangler/DemanglerLicenseGPL.txt b/3rdparty/demangler/DemanglerLicenseGPL.txt
diff --git a/3rdparty/demangler/DemanglerLicenseLGPL.txt b/3rdparty/demangler/DemanglerLicenseLGPL.txt
diff --git a/3rdparty/demangler/README b/3rdparty/demangler/README
@@ -0,0 +1,33 @@
+This code was taken from GCC 13.2.0 and specifically the libiberty library which
+contains files licensed under the GPL and the LGPL.
+
+Support for GCC 2.x-style symbols has been reintroduced by reversing the changes
+made by the commit that removed it:
+
+	From: Jason Merrill <[email protected]>
+	Date: Sun, 23 Dec 2018 00:06:34 +0000 (-0500)
+	Subject: Remove support for demangling GCC 2.x era mangling schemes.
+	X-Git-Tag: releases/gcc-9.1.0~2159
+	X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=6c8120c5ff130e03d32ff15a8f0d0e703592a2af
+
+	Remove support for demangling GCC 2.x era mangling schemes.
+
+	libiberty/
+		* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
+		internal_cplus_demangle, and all subroutines.
+		(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
+		Lucid, ARM, HP, and EDG demangling styles.
+		(cplus_demangle): Remove 'work' variable.  Don't call
+		internal_cplus_demangle.
+	include/
+		* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
+		ARM, HP, and EDG demangling styles.
+
+	From-SVN: r267363
+
+In addition, the cplus_demangle_opname function has been modified to address a
+memory safety issue:
+
+	/* CCC: Allocate the result on the heap to prevent buffer overruns. */
+	extern char *
+	cplus_demangle_opname (const char *opname, int options);
diff --git a/3rdparty/demangler/copy_demangler_files.sh b/3rdparty/demangler/copy_demangler_files.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+set -e
+
+# This script copies all the source files needed for the GNU demangler from a
+# copy of GCC to the specified output directory.
+
+if [ "$#" -ne 2 ]; then
+	echo "usage: $0 <gcc dir> <out dir>"
+	exit 1
+fi
+
+GCC_DIR=$1
+OUT_DIR=$2
+
+cp "$GCC_DIR/include/ansidecl.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/include/demangle.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/include/dyn-string.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/include/environ.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/include/getopt.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/include/libiberty.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/include/safe-ctype.h" "$OUT_DIR/include/"
+cp "$GCC_DIR/libiberty/alloca.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/argv.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/cp-demangle.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/cp-demangle.h" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/cplus-dem.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/d-demangle.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/dyn-string.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/getopt.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/getopt1.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/rust-demangle.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/safe-ctype.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/xexit.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/xmalloc.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/xmemdup.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/xstrdup.c" "$OUT_DIR/src/"
+cp "$GCC_DIR/libiberty/testsuite/demangle-expected" "$OUT_DIR/testsuite/"
+cp "$GCC_DIR/libiberty/testsuite/demangler-fuzzer.c" "$OUT_DIR/testsuite/"
+cp "$GCC_DIR/libiberty/testsuite/test-demangle.c" "$OUT_DIR/testsuite/"
diff --git a/3rdparty/demangler/demangler.vcxproj b/3rdparty/demangler/demangler.vcxproj
@@ -0,0 +1,67 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(SolutionDir)common\vsprops\BaseProjectConfig.props" />
+  <Import Project="$(SolutionDir)common\vsprops\WinSDK.props" />
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{D31A6DD1-99CA-41D8-A230-1FAE913C8989}</ProjectGuid>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <PlatformToolset Condition="!$(Configuration.Contains(Clang))">$(DefaultPlatformToolset)</PlatformToolset>
+    <PlatformToolset Condition="$(Configuration.Contains(Clang))">ClangCL</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+    <WholeProgramOptimization Condition="$(Configuration.Contains(Release))">true</WholeProgramOptimization>
+    <UseDebugLibraries Condition="$(Configuration.Contains(Debug))">true</UseDebugLibraries>
+    <UseDebugLibraries Condition="!$(Configuration.Contains(Debug))">false</UseDebugLibraries>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings" />
+  <ImportGroup Label="PropertySheets">
+    <Import Project="..\DefaultProjectRootDir.props" />
+    <Import Project="..\3rdparty.props" />
+    <Import Condition="$(Configuration.Contains(Debug))" Project="..\..\common\vsprops\CodeGen_Debug.props" />
+    <Import Condition="$(Configuration.Contains(Devel))" Project="..\..\common\vsprops\CodeGen_Devel.props" />
+    <Import Condition="$(Configuration.Contains(Release))" Project="..\..\common\vsprops\CodeGen_Release.props" />
+    <Import Condition="!$(Configuration.Contains(Release))" Project="..\..\common\vsprops\IncrementalLinking.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <ItemGroup>
+    <ClInclude Include="include\ansidecl.h" />
+    <ClInclude Include="include\cp-demangle.h" />
+    <ClInclude Include="include\demangle.h" />
+    <ClInclude Include="include\dyn-string.h" />
+    <ClInclude Include="include\environ.h" />
+    <ClInclude Include="include\getopt.h" />
+    <ClInclude Include="include\libiberty.h" />
+    <ClInclude Include="include\safe-ctype.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="src\alloca.c" />
+    <ClCompile Include="src\argv.c" />
+    <ClCompile Include="src\cp-demangle.c" />
+    <ClCompile Include="src\cplus-dem.c" />
+    <ClCompile Include="src\d-demangle.c" />
+    <ClCompile Include="src\dyn-string.c" />
+    <ClCompile Include="src\getopt.c" />
+    <ClCompile Include="src\getopt1.c" />
+    <ClCompile Include="src\rust-demangle.c" />
+    <ClCompile Include="src\safe-ctype.c" />
+    <ClCompile Include="src\xexit.c" />
+    <ClCompile Include="src\xmalloc.c" />
+    <ClCompile Include="src\xmemdup.c" />
+    <ClCompile Include="src\xstrdup.c" />
+  </ItemGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <PreprocessorDefinitions>HAVE_DECL_BASENAME=1;HAVE_LIMITS_H;HAVE_STDLIB_H=1;HAVE_STRING_H=1;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <WarningLevel>TurnOffAllWarnings</WarningLevel>
+      <AdditionalIncludeDirectories>$(ProjectDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets" />
+</Project>
diff --git a/3rdparty/demangler/demangler.vcxproj.filters b/3rdparty/demangler/demangler.vcxproj.filters
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Source Files">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Header Files">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Resource Files">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="include\ansidecl.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\cp-demangle.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\demangle.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\dyn-string.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\environ.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\getopt.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\libiberty.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="include\safe-ctype.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="src\alloca.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\argv.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\cp-demangle.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\cplus-dem.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\d-demangle.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\dyn-string.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\getopt.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\getopt1.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\rust-demangle.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\safe-ctype.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\xexit.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\xmalloc.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\xmemdup.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+    <ClCompile Include="src\xstrdup.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>