From 0d4a5c40bc97d65ede1923577b2ca9dac3a6c24f Mon Sep 17 00:00:00 2001
From: Sahnvour <sahnvour@pm.me>
Date: Fri, 15 Mar 2019 20:16:42 +0100
Subject: [PATCH] correct padding handling between std.pdb.ModInfo entries in
 DbiStream

---
 std/debug.zig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/std/debug.zig b/std/debug.zig
index b666e816af..0b5fc97f87 100644
--- a/std/debug.zig
+++ b/std/debug.zig
@@ -881,8 +881,9 @@ fn openSelfDebugInfoWindows(allocator: *mem.Allocator) !DebugInfo {
         const obj_file_name = try dbi.readNullTermString(allocator);
         this_record_len += obj_file_name.len + 1;
 
-        const march_forward_bytes = this_record_len % 4;
-        if (march_forward_bytes != 0) {
+        if (this_record_len % 4 != 0) {
+            const round_to_next_4 = (this_record_len | 0x3) + 1;
+            const march_forward_bytes = round_to_next_4 - this_record_len;
             try dbi.seekForward(march_forward_bytes);
             this_record_len += march_forward_bytes;
         }