Add OpenBSD support to OpenMP
Summary: This patch permits OpenMP to build and work (with both gcc and clang) on OpenBSD. It mostly follows what was done for FreeBSD and NetBSD, except OpenBSD does not have pthread_getattr_np support, so it follows OS X in that one instance.
Reviewers: #openmp, krytarowski
Reviewed By: krytarowski
Subscribers: guansong, jfb, emaste, mgorny, krytarowski, #openmp
Tags: #openmp
Differential Revision: https://reviews.llvm.org/D34280
git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@348726 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/runtime/src/kmp.h b/runtime/src/kmp.h
index 648fca2..3a99cde 100644
--- a/runtime/src/kmp.h
+++ b/runtime/src/kmp.h
@@ -1058,6 +1058,10 @@
/* TODO: tune for KMP_OS_HURD */
#define KMP_INIT_WAIT 1024U /* initial number of spin-tests */
#define KMP_NEXT_WAIT 512U /* susequent number of spin-tests */
+#elif KMP_OS_OPENBSD
+/* TODO: tune for KMP_OS_OPENBSD */
+#define KMP_INIT_WAIT 1024U /* initial number of spin-tests */
+#define KMP_NEXT_WAIT 512U /* susequent number of spin-tests */
#endif
#if KMP_ARCH_X86 || KMP_ARCH_X86_64
diff --git a/runtime/src/kmp_platform.h b/runtime/src/kmp_platform.h
index 8380111..8d46967 100644
--- a/runtime/src/kmp_platform.h
+++ b/runtime/src/kmp_platform.h
@@ -20,6 +20,7 @@
#define KMP_OS_DRAGONFLY 0
#define KMP_OS_FREEBSD 0
#define KMP_OS_NETBSD 0
+#define KMP_OS_OPENBSD 0
#define KMP_OS_DARWIN 0
#define KMP_OS_WINDOWS 0
#define KMP_OS_CNK 0
@@ -61,6 +62,11 @@
#define KMP_OS_NETBSD 1
#endif
+#if (defined __OpenBSD__)
+#undef KMP_OS_OPENBSD
+#define KMP_OS_OPENBSD 1
+#endif
+
#if (defined __bgq__)
#undef KMP_OS_CNK
#define KMP_OS_CNK 1
@@ -73,12 +79,12 @@
#if (1 != \
KMP_OS_LINUX + KMP_OS_DRAGONFLY + KMP_OS_FREEBSD + KMP_OS_NETBSD + \
- KMP_OS_DARWIN + KMP_OS_WINDOWS + KMP_OS_HURD)
+ KMP_OS_OPENBSD + KMP_OS_DARWIN + KMP_OS_WINDOWS + KMP_OS_HURD)
#error Unknown OS
#endif
#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || \
- KMP_OS_DARWIN || KMP_OS_HURD
+ KMP_OS_OPENBSD || KMP_OS_DARWIN || KMP_OS_HURD
#undef KMP_OS_UNIX
#define KMP_OS_UNIX 1
#endif
diff --git a/runtime/src/kmp_runtime.cpp b/runtime/src/kmp_runtime.cpp
index be8d0d1..ef435cd 100644
--- a/runtime/src/kmp_runtime.cpp
+++ b/runtime/src/kmp_runtime.cpp
@@ -7671,7 +7671,7 @@
#if KMP_ARCH_X86_64 || KMP_ARCH_PPC64 || KMP_ARCH_AARCH64 || KMP_ARCH_MIPS64
#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || \
- KMP_OS_WINDOWS || KMP_OS_DARWIN || KMP_OS_HURD
+ KMP_OS_OPENBSD || KMP_OS_WINDOWS || KMP_OS_DARWIN || KMP_OS_HURD
int teamsize_cutoff = 4;
@@ -7695,7 +7695,7 @@
#else
#error "Unknown or unsupported OS"
#endif // KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD \
-// || KMP_OS_WINDOWS || KMP_OS_DARWIN
+// || KMP_OS_OPENBSD || KMP_OS_WINDOWS || KMP_OS_DARWIN || KMP_OS_HURD
#elif KMP_ARCH_X86 || KMP_ARCH_ARM || KMP_ARCH_AARCH || KMP_ARCH_MIPS
diff --git a/runtime/src/kmp_wrapper_malloc.h b/runtime/src/kmp_wrapper_malloc.h
index a3d4f00..b690c51 100644
--- a/runtime/src/kmp_wrapper_malloc.h
+++ b/runtime/src/kmp_wrapper_malloc.h
@@ -94,7 +94,7 @@
#if KMP_OS_WINDOWS
#include <malloc.h> // Windows* OS: _alloca() declared in "malloc.h".
#define alloca _alloca // Allow to use alloca() with no underscore.
-#elif KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD
+#elif KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || KMP_OS_OPENBSD
// Declared in "stdlib.h".
#elif KMP_OS_UNIX
#include <alloca.h> // Linux* OS and OS X*: alloc() declared in "alloca".
diff --git a/runtime/src/z_Linux_util.cpp b/runtime/src/z_Linux_util.cpp
index 1249ca7..7b008d7 100644
--- a/runtime/src/z_Linux_util.cpp
+++ b/runtime/src/z_Linux_util.cpp
@@ -22,7 +22,7 @@
#include "kmp_wait_release.h"
#include "kmp_wrapper_getpid.h"
-#if !KMP_OS_DRAGONFLY && !KMP_OS_FREEBSD && !KMP_OS_NETBSD
+#if !KMP_OS_DRAGONFLY && !KMP_OS_FREEBSD && !KMP_OS_NETBSD && !KMP_OS_OPENBSD
#include <alloca.h>
#endif
#include <math.h> // HUGE_VAL.
@@ -499,7 +499,7 @@
#endif /* KMP_BLOCK_SIGNALS */
void *exit_val;
#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || \
- KMP_OS_HURD
+ KMP_OS_OPENBSD || KMP_OS_HURD
void *volatile padding = 0;
#endif
int gtid;
@@ -547,7 +547,8 @@
KMP_CHECK_SYSFAIL("pthread_sigmask", status);
#endif /* KMP_BLOCK_SIGNALS */
-#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD
+#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || \
+ KMP_OS_OPENBSD
if (__kmp_stkoffset > 0 && gtid > 0) {
padding = KMP_ALLOCA(gtid * __kmp_stkoffset);
}
@@ -1768,7 +1769,7 @@
int r = 0;
#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || \
- KMP_OS_HURD
+ KMP_OS_OPENBSD || KMP_OS_HURD
r = sysconf(_SC_NPROCESSORS_ONLN);
@@ -2014,9 +2015,9 @@
found = 1;
}
-#elif KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD
+#elif KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || KMP_OS_OPENBSD
- // FIXME(DragonFly, FreeBSD, NetBSD): Implement this
+ // FIXME(DragonFly, FreeBSD, NetBSD, OpenBSD): Implement this
found = 1;
#else
