3 files changed, 28 insertions, 24 deletions
diff --git a/lib/std/debug/SelfInfo/DarwinModule.zig b/lib/std/debug/SelfInfo/DarwinModule.zig
index d0cb47281f..976893e0af 100644
--- a/lib/std/debug/SelfInfo/DarwinModule.zig
+++ b/lib/std/debug/SelfInfo/DarwinModule.zig
@@ -578,9 +578,7 @@ fn unwindFrameMachO(
     return new_ip;
 }
 /// No cache needed, because `_dyld_get_image_header` etc are already fast.
-pub const LookupCache = struct {
-    pub const init: LookupCache = .{};
-};
+pub const LookupCache = void;
 pub const DebugInfo = struct {
     unwind: ?struct {
         // Backed by the in-memory sections mapped by the loader
@@ -601,22 +599,24 @@ pub const DebugInfo = struct {
         .full = null,
     };
 
+    pub fn deinit(di: *DebugInfo, gpa: Allocator) void {
+        if (di.full) |*full| {
+            for (full.ofiles.values()) |*ofile| {
+                ofile.dwarf.deinit(gpa);
+                ofile.addr_table.deinit(gpa);
+            }
+            full.ofiles.deinit(gpa);
+            gpa.free(full.symbols);
+            posix.munmap(full.mapped_memory);
+        }
+    }
+
     const OFile = struct {
         dwarf: Dwarf,
         // MLUGG TODO: this could use an adapter to just index straight into the strtab!
         addr_table: std.StringArrayHashMapUnmanaged(u64),
     };
 
-    fn deinit(di: *DebugInfo, gpa: Allocator) void {
-        for (di.full.ofiles.values()) |*ofile| {
-            ofile.dwarf.deinit(gpa);
-            ofile.addr_table.deinit(gpa);
-        }
-        di.full.ofiles.deinit();
-        gpa.free(di.full.symbols);
-        posix.munmap(di.full.mapped_memory);
-    }
-
     fn loadOFile(gpa: Allocator, o_file_path: []const u8) !OFile {
         const mapped_mem = try mapDebugInfoFile(o_file_path);
         errdefer posix.munmap(mapped_mem);
diff --git a/lib/std/debug/SelfInfo/ElfModule.zig b/lib/std/debug/SelfInfo/ElfModule.zig
index 41ea722962..4f64b147e1 100644
--- a/lib/std/debug/SelfInfo/ElfModule.zig
+++ b/lib/std/debug/SelfInfo/ElfModule.zig
@@ -4,9 +4,7 @@ build_id: ?[]const u8,
 gnu_eh_frame: ?[]const u8,
 
 /// No cache needed, because `dl_iterate_phdr` is already fast.
-pub const LookupCache = struct {
-    pub const init: LookupCache = .{};
-};
+pub const LookupCache = void;
 
 pub const DebugInfo = struct {
     loaded_elf: ?Dwarf.ElfModule,
@@ -15,6 +13,9 @@ pub const DebugInfo = struct {
         .loaded_elf = null,
         .unwind = null,
     };
+    pub fn deinit(di: *DebugInfo, gpa: Allocator) void {
+        if (di.loaded_elf) |*loaded_elf| loaded_elf.deinit(gpa);
+    }
 };
 
 pub fn key(m: ElfModule) usize {
diff --git a/lib/std/debug/SelfInfo/WindowsModule.zig b/lib/std/debug/SelfInfo/WindowsModule.zig
index ab322c201a..4f9d98353b 100644
--- a/lib/std/debug/SelfInfo/WindowsModule.zig
+++ b/lib/std/debug/SelfInfo/WindowsModule.zig
@@ -167,6 +167,9 @@ fn loadLocationInfo(module: *const WindowsModule, gpa: Allocator, di: *DebugInfo
 pub const LookupCache = struct {
     modules: std.ArrayListUnmanaged(windows.MODULEENTRY32),
     pub const init: LookupCache = .{ .modules = .empty };
+    pub fn deinit(lc: *LookupCache, gpa: Allocator) void {
+        lc.modules.deinit(gpa);
+    }
 };
 pub const DebugInfo = struct {
     loaded: bool,
@@ -176,12 +179,6 @@ pub const DebugInfo = struct {
         file: fs.File,
         section_handle: windows.HANDLE,
         section_view: []const u8,
-        fn deinit(mapped: @This()) void {
-            const process_handle = windows.GetCurrentProcess();
-            assert(windows.ntdll.NtUnmapViewOfSection(process_handle, @constCast(mapped.section_view.ptr)) == .SUCCESS);
-            windows.CloseHandle(mapped.section_handle);
-            mapped.file.close();
-        }
     },
 
     dwarf: ?Dwarf,
@@ -199,11 +196,17 @@ pub const DebugInfo = struct {
         .coff_section_headers = &.{},
     };
 
-    fn deinit(di: *DebugInfo, gpa: Allocator) void {
+    pub fn deinit(di: *DebugInfo, gpa: Allocator) void {
+        if (!di.loaded) return;
         if (di.dwarf) |*dwarf| dwarf.deinit(gpa);
         if (di.pdb) |*pdb| pdb.deinit();
         gpa.free(di.coff_section_headers);
-        if (di.mapped_file) |mapped| mapped.deinit();
+        if (di.mapped_file) |mapped| {
+            const process_handle = windows.GetCurrentProcess();
+            assert(windows.ntdll.NtUnmapViewOfSection(process_handle, @constCast(mapped.section_view.ptr)) == .SUCCESS);
+            windows.CloseHandle(mapped.section_handle);
+            mapped.file.close();
+        }
     }
 
     fn getSymbolFromPdb(di: *DebugInfo, relocated_address: usize) !?std.debug.Symbol {