From: Nicholas Nethercote <nnethercote@mozilla.com>
Date: Wed, 2 Dec 2020 05:21:23 +0000 (+1100)
Subject: Add a comment to previous commit.
X-Git-Tag: VALGRIND_3_17_0~103
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d63b8ec7d423268296d8cd664c3fcee9126d24b8;p=thirdparty%2Fvalgrind.git

Add a comment to previous commit.
---

diff --git a/shared/vg_replace_strmem.c b/shared/vg_replace_strmem.c
index df61aa1327..423216ae18 100644
--- a/shared/vg_replace_strmem.c
+++ b/shared/vg_replace_strmem.c
@@ -1979,6 +1979,7 @@ static inline void my_exit ( int x )
       /* pre-counting length... should be ok */ \
       if (is_overlap(dst_orig,  \
                      src_orig,  \
+                     /* +4 because sizeof(wchar_t) == 4 */ \
                      (Addr)dst-(Addr)dst_orig+4, \
                      (Addr)src-(Addr)src_orig+4)) \
          RECORD_OVERLAP_ERROR("wcscpy", dst_orig, src_orig, 0); \