From ef11bc9899002620d67cfce9c79b6c0dc0f5ea61 Mon Sep 17 00:00:00 2001
From: Jacob Young <jacobly0@users.noreply.github.com>
Date: Tue, 6 Aug 2024 11:22:37 -0400
Subject: Dwarf: rework self-hosted debug info from scratch

This is in preparation for incremental and actually being able to debug
executables built by the x86_64 backend.
---
 src/link.zig | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'src/link.zig')

diff --git a/src/link.zig b/src/link.zig
index 3463a77147..b3e0aaa4a8 100644
--- a/src/link.zig
+++ b/src/link.zig
@@ -329,6 +329,9 @@ pub const File = struct {
         }
     }
 
+    pub const UpdateDebugInfoError = Dwarf.UpdateError;
+    pub const FlushDebugInfoError = Dwarf.FlushError;
+
     pub const UpdateNavError = error{
         OutOfMemory,
         Overflow,
@@ -365,7 +368,7 @@ pub const File = struct {
         DeviceBusy,
         InvalidArgument,
         HotSwapUnavailableOnHostOperatingSystem,
-    };
+    } || UpdateDebugInfoError;
 
     /// Called from within CodeGen to retrieve the symbol index of a global symbol.
     /// If no symbol exists yet with this name, a new undefined global symbol will
@@ -398,6 +401,16 @@ pub const File = struct {
         }
     }
 
+    pub fn updateContainerType(base: *File, pt: Zcu.PerThread, ty: InternPool.Index) UpdateNavError!void {
+        switch (base.tag) {
+            else => {},
+            inline .elf => |tag| {
+                dev.check(tag.devFeature());
+                return @as(*tag.Type(), @fieldParentPtr("base", base)).updateContainerType(pt, ty);
+            },
+        }
+    }
+
     /// May be called before or after updateExports for any given Decl.
     pub fn updateFunc(
         base: *File,
@@ -570,6 +583,7 @@ pub const File = struct {
         Unseekable,
         UnsupportedCpuArchitecture,
         UnsupportedVersion,
+        UnexpectedEndOfFile,
     } ||
         fs.File.WriteFileError ||
         fs.File.OpenError ||
-- 
cgit v1.2.3