From fb498eb9257f4ac37e730b5af608e7812a4f63bf Mon Sep 17 00:00:00 2001
From: Henry Kroll III <henry@comptune.com>
Date: Wed, 27 Oct 2010 03:44:00 -0700
Subject: [PATCH] selinux: correct ftruncate, fix bus error in tcc -run

---
 tccrun.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tccrun.c b/tccrun.c
index 24e1f95a..0423a1d3 100644
--- a/tccrun.c
+++ b/tccrun.c
@@ -38,12 +38,13 @@ int tcc_relocate(TCCState *s1)
 {
     int ret;
 #ifdef HAVE_SELINUX
+    /* Use mmap instead of malloc for Selinux
+    Ref http://www.gnu.org/s/libc/manual/html_node/File-Size.html */
     char tmpfname[] = "/tmp/.tccrunXXXXXX";
     int fd = mkstemp (tmpfname);
-    unlink (tmpfname); ftruncate (fd, 1000);
     if ((ret= tcc_relocate_ex(s1,NULL)) < 0)return -1;
     s1->mem_size=ret;
-     /* Use mmap instead of malloc for Selinux */
+    unlink (tmpfname); ftruncate (fd, s1->mem_size);
     s1->write_mem = mmap (NULL, ret, PROT_READ|PROT_WRITE,
         MAP_SHARED, fd, 0);
     if(s1->write_mem == MAP_FAILED){
-- 
2.11.4.GIT