macho: rewrite how we allocate space in incremental context

1 files changed, 15 insertions, 2 deletions

diff --git a/src/link/Dwarf.zig b/src/link/Dwarf.zig
index 474c822ae6..d7a64bc0d7 100644
--- a/src/link/Dwarf.zig
+++ b/src/link/Dwarf.zig
@@ -948,7 +948,7 @@ pub fn commitDeclState(
                                 new_offset,
                             });
 
-                            try File.MachO.copyRangeAllOverlappingAlloc(
+                            try copyRangeAllOverlappingAlloc(
                                 gpa,
                                 d_sym.file,
                                 debug_line_sect.offset,
@@ -1247,7 +1247,7 @@ fn writeDeclDebugInfo(self: *Dwarf, file: *File, atom: *Atom, dbg_info_buf: []co
                         new_offset,
                     });
 
-                    try File.MachO.copyRangeAllOverlappingAlloc(
+                    try copyRangeAllOverlappingAlloc(
                         gpa,
                         d_sym.file,
                         debug_info_sect.offset,
@@ -2338,3 +2338,16 @@ fn addDbgInfoErrorSet(
     // DW.AT.enumeration_type delimit children
     try dbg_info_buffer.append(0);
 }
+
+fn copyRangeAllOverlappingAlloc(
+    allocator: Allocator,
+    file: std.fs.File,
+    in_offset: u64,
+    out_offset: u64,
+    len: usize,
+) !void {
+    const buf = try allocator.alloc(u8, len);
+    defer allocator.free(buf);
+    const amt = try file.preadAll(buf, in_offset);
+    try file.pwriteAll(buf[0..amt], out_offset);
+}