From: Augustin Degomme <augustin.degomme@unibas.ch>
Date: Thu, 16 Feb 2017 23:15:52 +0000 (+0100)
Subject: warning --, and ignore map_populate when not implemented (linux only, but just adviso... 
X-Git-Tag: v3_15~339
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/6135eea71e3f38292e9da828bdcf04eb110509fe

warning --, and ignore map_populate when not implemented (linux only, but just advisory, so let's follow https://gnu.org/software/hurd/glibc/mmap.html)
---

diff --git a/src/smpi/smpi_bench.cpp b/src/smpi/smpi_bench.cpp
index 95a1e4e309..b7b7c6df0e 100644
--- a/src/smpi/smpi_bench.cpp
+++ b/src/smpi/smpi_bench.cpp
@@ -40,6 +40,10 @@
 #define MAP_ANONYMOUS MAP_ANON
 #endif
 
+#ifndef MAP_POPULATE
+#define MAP_POPULATE 0
+#endif
+
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(smpi_bench, smpi, "Logging specific to SMPI (benchmarking)");
 
 /* Shared allocations are handled through shared memory segments.
@@ -607,7 +611,9 @@ void *smpi_shared_malloc(size_t size, const char *file, int line)
       unlink(name);
       free(name);
       char* dumb = (char*)calloc(1, smpi_shared_malloc_blocksize);
-      write(smpi_shared_malloc_bogusfile, dumb, smpi_shared_malloc_blocksize);
+      ssize_t err = write(smpi_shared_malloc_bogusfile, dumb, smpi_shared_malloc_blocksize);
+      if(err<0)
+        xbt_die("could ot write bogus file for shared malloc");
       free(dumb);
     }