From: Ivan Maidanski <ivmai@mail.ru>
Date: Fri, 6 Apr 2018 06:13:03 +0000 (+0300)
Subject: Fix missing SIGBUS handler setup for kFreeBSD
X-Git-Tag: v7.6.6~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=83dd5411e81c0b9bf9eed2b7c6bb5044936071d2;p=gc

Fix missing SIGBUS handler setup for kFreeBSD

Issue #184 (bdwgc).

* os_dep.c [MPROTECT_VDB && !DARWIN && !MSWIN32 && !MSWINCE && FREEBSD
&& __GLIBC__] (GC_mprotect_dirty_init): Call sigaction(SIGBUS).
---

diff --git a/os_dep.c b/os_dep.c
index 5930ea35..abfa2335 100644
--- a/os_dep.c
+++ b/os_dep.c
@@ -3412,7 +3412,7 @@ GC_INNER void GC_remove_protection(struct hblk *h, word nblocks,
         GC_VERBOSE_LOG_PRINTF("Replaced other SIGSEGV handler\n");
       }
 #   if defined(HPUX) || defined(LINUX) || defined(HURD) \
-       || (defined(FREEBSD) && defined(SUNOS5SIGS))
+       || (defined(FREEBSD) && (defined(__GLIBC__) || defined(SUNOS5SIGS)))
       sigaction(SIGBUS, &act, &oldact);
       if ((oldact.sa_flags & SA_SIGINFO) != 0) {
         GC_old_bus_handler = oldact.sa_sigaction;