From: Nick Mathewson <nickm@torproject.org>
Date: Wed, 29 May 2019 13:22:18 +0000 (-0400)
Subject: Give a compile warning when we don't have any flags for minherit().
X-Git-Tag: tor-0.4.1.3-alpha~6^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cad0de35bd49064f5712f32a2b6e41ffe6e822e6;p=thirdparty%2Ftor.git

Give a compile warning when we don't have any flags for minherit().

Part of ticket 30686.
---

diff --git a/src/lib/malloc/map_anon.c b/src/lib/malloc/map_anon.c
index f4fda00bff..6afea713df 100644
--- a/src/lib/malloc/map_anon.c
+++ b/src/lib/malloc/map_anon.c
@@ -70,6 +70,11 @@
 
 #endif
 
+#if defined(HAVE_MINHERIT) && !defined(FLAG_ZERO) && !defined(FLAG_NOINHERIT)
+#warn "minherit() is defined, but we couldn't find the right flag for it."
+#warn "This is probably a bug in Tor's support for this platform."
+#endif
+
 /**
  * Helper: try to prevent the <b>sz</b> bytes at <b>mem</b> from being swapped
  * to disk.  Return 0 on success or if the facility is not available on this