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authorNikos Nikoleris <nikos.nikoleris@arm.com>2018-12-01 14:52:23 +0000
committerNikos Nikoleris <nikos.nikoleris@arm.com>2018-12-04 10:03:30 +0000
commitfc09f4a24e22988cb89650b1d5b1f3716cf5c893 (patch)
tree9d7803aae3a3bfe204ae94276012a861bccf4412
parent7f2d7fe4ef622d861e55517279f193cdf8acfc99 (diff)
downloadgem5-fc09f4a24e22988cb89650b1d5b1f3716cf5c893.tar.xz
base: Fix fiber compilation issue for Mac OS
Mac OS has deprecated the use of ucontext and at the moment we are using a workaround to enable it. A side-effect is that the code is marked as _POSIX_C_SOURCE and consequently <sys/mman.h> requires the code to be also marked as _DARWIN_C_SOURCE to include the definition of MAP_ANONYMOUS. Change-Id: I65550d11a0a21cd36d832a7de6320e7e3f332a9d Signed-off-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-on: https://gem5-review.googlesource.com/c/14817 Reviewed-by: Gabe Black <gabeblack@google.com> Maintainer: Gabe Black <gabeblack@google.com>
-rw-r--r--src/base/fiber.cc8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/base/fiber.cc b/src/base/fiber.cc
index af63216da..177459aaa 100644
--- a/src/base/fiber.cc
+++ b/src/base/fiber.cc
@@ -33,6 +33,14 @@
#include <valgrind/valgrind.h>
#endif
+// Mac OS requires _DARWIN_C_SOURCE if _POSIX_C_SOURCE is defined,
+// otherwise it will mask the definition of MAP_ANONYMOUS.
+// _POSIX_C_SOURCE is already defined by including <ucontext.h> in
+// base/fiber.hh
+#if defined(__APPLE__) && defined(__MACH__)
+#define _DARWIN_C_SOURCE
+#endif
+
#include <sys/mman.h>
#include <unistd.h>