[PATCH] Cygwin: Zero out gmon header before use

[Mark Geisert]

Tools that process gmon.out files can be confused by gmon header fields
with garbage in them due to lack of initialization.  Repair that.

---
 winsup/cygwin/gmon.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/winsup/cygwin/gmon.c b/winsup/cygwin/gmon.c
index b31842cd9..8b1c449c4 100644
--- a/winsup/cygwin/gmon.c
+++ b/winsup/cygwin/gmon.c
@@ -224,6 +224,7 @@ _mcleanup(void)
        write(log, dbuf, len);
 #endif
        hdr = (struct gmonhdr *)&gmonhdr;
+       bzero(hdr, sizeof *hdr);
        hdr->lpc = p->lowpc;
        hdr->hpc = p->highpc;
        hdr->ncnt = p->kcountsize + sizeof(gmonhdr);
-- 
2.31.1