From 764287f1ad69469cc264bb094e8fcdcfdd0fcdfb Mon Sep 17 00:00:00 2001
From: Alex Langford <alangford@apple.com>
Date: Tue, 29 Aug 2023 14:11:41 -0700
Subject: [lldb] Add support for recognizing swift ast sections in object files

In Apple's downstream fork, there is support for understanding the swift
AST sections in various binaries. Even though the lldb on llvm.org does
not have support for debugging swift, I think it makes sense to move
support for recognizing swift ast sections upstream.

Differential Revision: https://reviews.llvm.org/D159142
---
 lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp')

diff --git a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
index 3e52c9e3c042..3ce2057d5372 100644
--- a/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
+++ b/lldb/source/Plugins/ObjectFile/Mach-O/ObjectFileMachO.cpp
@@ -1202,6 +1202,7 @@ AddressClass ObjectFileMachO::GetAddressClass(lldb::addr_t file_addr) {
         case eSectionTypeDWARFAppleObjC:
         case eSectionTypeDWARFGNUDebugAltLink:
         case eSectionTypeCTF:
+        case eSectionTypeSwiftModules:
           return AddressClass::eDebug;
 
         case eSectionTypeEHFrame:
@@ -1476,6 +1477,7 @@ static lldb::SectionType GetSectionType(uint32_t flags,
   static ConstString g_sect_name_data("__data");
   static ConstString g_sect_name_go_symtab("__gosymtab");
   static ConstString g_sect_name_ctf("__ctf");
+  static ConstString g_sect_name_swift_ast("__swift_ast");
 
   if (section_name == g_sect_name_dwarf_debug_abbrev)
     return eSectionTypeDWARFDebugAbbrev;
@@ -1555,6 +1557,8 @@ static lldb::SectionType GetSectionType(uint32_t flags,
     return eSectionTypeGoSymtab;
   if (section_name == g_sect_name_ctf)
     return eSectionTypeCTF;
+  if (section_name == g_sect_name_swift_ast)
+    return eSectionTypeSwiftModules;
   if (section_name == g_sect_name_objc_data ||
       section_name == g_sect_name_objc_classrefs ||
       section_name == g_sect_name_objc_superrefs ||
-- 
cgit v1.2.3