Add pocl.

Portable OpenCL aims to be an efficient open source (MIT-licensed)
implementation of the OpenCL 1.2 standard. pocl uses Clang as an
OpenCL C frontend and LLVM for the kernel compiler implementation,
and as a portability layer. Thus, if your desired target has an LLVM
backend, it should be able to get OpenCL support easily by using pocl.

PR:		171914
Submitted by:	O.Hartmann <ohartmann@walstatt.org> (based on)

9 files changed, 268 insertions, 0 deletions

diff --git a/lang/Makefile b/lang/Makefile
index dae04807dead..7b5cecea5bc9 100644
--- a/lang/Makefile
+++ b/lang/Makefile
@@ -256,6 +256,7 @@
     SUBDIR += php_doc
     SUBDIR += picoc
     SUBDIR += pike78
+    SUBDIR += pocl
     SUBDIR += polyml
     SUBDIR += ptoc
     SUBDIR += pure
diff --git a/lang/pocl/Makefile b/lang/pocl/Makefile
new file mode 100644
index 000000000000..d405867b65ed
--- /dev/null
+++ b/lang/pocl/Makefile
@@ -0,0 +1,67 @@
+# $FreeBSD$
+
+PORTNAME=	pocl
+PORTVERSION=	0.13
+CATEGORIES=	lang
+MASTER_SITES=	SF/pocl \
+		http://portablecl.org/downloads/
+
+MAINTAINER=	ohartman@zedat.fu-berlin.de
+COMMENT=	POrtable Computing Language (POCL)
+
+LICENSE=	GPLv3
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+BUILD_DEPENDS=	llvm${LLVM_VERSION}>=0:devel/llvm${LLVM_VERSION} \
+		opencl>=2.1:devel/opencl
+LIB_DEPENDS=	libhwloc.so:devel/hwloc \
+		libOpenCL.so:devel/ocl-icd \
+		libltdl.so:devel/libltdl
+RUN_DEPENDS=	llvm${LLVM_VERSION}>=0:devel/llvm${LLVM_VERSION}
+
+CONFLICTS=		freeocl[0-9]*
+
+BROKEN_FreeBSD_9=	pocl is not supported on 9.x
+BROKEN_FreeBSD_10=	pocl is not supported on 10.x
+ONLY_FOR_ARCHS=	amd64
+ONLY_FOR_ARCHS_REASON_amd64=	only tested on amd64
+
+LLVM_VERSION=	37
+
+GNU_CONFIGURE=	yes
+USE_LDCONFIG=	yes
+USE_GL=		yes
+#USES=		autoreconf gmake localbase pathfix pkgconfig libtool
+USES=		gmake localbase ncurses pathfix pkgconfig libtool:keepla
+
+INSTALL_TARGET= install-strip
+
+MAKE_ARGS+=	PKGCONFIGDIR=${PREFIX}/libdata/pkgconfig
+
+CONFIGURE_ENV=	LLVM_CONFIG="${LOCALBASE}/llvm${LLVM_VERSION}/bin/llvm-config" \
+		CLANGXX_FLAGS=-std=gnu++11
+#CONFIGURE_ARGS+=	--enable-pedantic
+# needed for the libltdl configure check
+LDFLAGS+=	-L${LOCALBASE}/lib
+
+ALL_TARGET=	all
+
+OCL_ICD_VENDORS?=	${PREFIX}/etc/OpenCL/vendors
+
+OPTIONS_DEFINE=		DEBUG
+
+OPTIONS_GROUP=		TEST
+OPTIONS_GROUP_TEST=	OCLBOOK
+
+OCLBOOK_DESC=	Tests from the OpenCL book
+DEBUG_DESC=	Debug build of pocl 
+
+OCLBOOK_CONFIGURE_ENABLE= enable_testsuites="opencl-book-samples,cloverleaf,opencl_book_samples,halide,vexcl"
+OCLBOOK_ALL_TARGET=	check
+
+DEBUG_CONFIGURE_ENABLE=	debug
+
+do-test:
+	cd ${WRKSRC} && ${GMAKE} check
+
+.include <bsd.port.mk>
diff --git a/lang/pocl/distinfo b/lang/pocl/distinfo
new file mode 100644
index 000000000000..7f1bf982386c
--- /dev/null
+++ b/lang/pocl/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1479738879
+SHA256 (pocl-0.13.tar.gz) = a17f37d8f26819c0c8efc6de2b57f67a0c8a81514fc9cd5005434e49d67499f9
+SIZE (pocl-0.13.tar.gz) = 1901208
diff --git a/lang/pocl/files/patch-Makefile.in b/lang/pocl/files/patch-Makefile.in
new file mode 100644
index 000000000000..49fa57e1e446
--- /dev/null
+++ b/lang/pocl/files/patch-Makefile.in
@@ -0,0 +1,25 @@
+First part: this is false, this was due to a libtool bug, which is fixed now
+Second part: cmp --quiet is long for the -s option, use that since FreeBSD
+cmp doesn't have the long option.
+
+--- Makefile.in.orig	2016-09-13 22:57:13.327123000 +0200
++++ Makefile.in	2016-09-13 23:01:18.738696000 +0200
+@@ -116,8 +116,7 @@
+ @POCL_ANDROID_FALSE@am__append_1 = scripts examples tests
+ 
+ #TODO: this naming scheme is used on other platforms (primarly BSDs?) too
+-@BUILD_ICD_TRUE@@FREEBSD_HOST_OS_TRUE@am__append_2 = -e 's,so.VER,so.$(LIB_CURRENT_VERSION),g'
+-@BUILD_ICD_TRUE@@FREEBSD_HOST_OS_FALSE@am__append_3 = -e 's,so.VER,so.$(LIB_FIRST_VERSION).$(LIB_AGE_VERSION).$(LIB_REVISION_VERSION),g'
++@BUILD_ICD_TRUE@am__append_3 = -e 's,so.VER,so.$(LIB_FIRST_VERSION).$(LIB_AGE_VERSION).$(LIB_REVISION_VERSION),g'
+ @BUILD_ICD_TRUE@am__append_4 = pocl.icd
+ @BUILD_ICD_TRUE@am__append_5 = pocl.icd
+ subdir = .
+@@ -1076,7 +1075,7 @@
+ 	echo "#define PKGDATADIR \"${pkgdatadir}\"" > $@.new
+ 	echo "#define PKGLIBEXECDIR \"${pkglibexecdir}\"" >> $@.new
+ 	echo "#define PKGINCLUDEDIR \"${pkgincludedir}\"" >> $@.new
+-	@if cmp --quiet $@.new $@ ; then \
++	@if cmp -s $@.new $@ ; then \
+ 		: "Paths not changed" ;\
+ 		$(RM) $@.new ;\
+ 	else \
diff --git a/lang/pocl/files/patch-lib_CL_devices_cpuinfo.c b/lang/pocl/files/patch-lib_CL_devices_cpuinfo.c
new file mode 100644
index 000000000000..1b7ce29b8034
--- /dev/null
+++ b/lang/pocl/files/patch-lib_CL_devices_cpuinfo.c
@@ -0,0 +1,90 @@
+--- lib/CL/devices/cpuinfo.c.orig	2016-11-20 11:31:19.521203000 +0100
++++ lib/CL/devices/cpuinfo.c	2016-11-20 11:29:24.502817000 +0100
+@@ -31,9 +31,13 @@
+ #  include "vccompat.hpp"
+ #endif
+ 
++#include <sys/types.h>
++#include <sys/sysctl.h>
++
+ #include "config.h"
+ #include "cpuinfo.h"
+ 
++#if 0
+ const char* cpuinfo = "/proc/cpuinfo";
+ #define MAX_CPUINFO_SIZE 64*1024
+ //#define DEBUG_POCL_CPUINFO
+@@ -152,8 +156,29 @@ pocl_cpuinfo_detect_max_clock_frequency(
+     } 
+   return -1;  
+ }
++#endif
++
++/**
++ * Detects the number of parallel hardware threads supported by
++ * the CPU.
++ *
++ * @return The number of hardware threads.
++ */
++ int
++pocl_cpuinfo_detect_compute_unit_count()
++{
++  int mib[2], nocpus;
++  size_t len;
+ 
++  mib[0] = CTL_HW;
++  mib[1] = HW_NCPU;
++  len = sizeof(nocpus);
++  sysctl(mib, 2, &nocpus, &len, NULL, 0);
+ 
++  return nocpus;
++}
++
++#if 0
+ /**
+  * Detects the number of parallel hardware threads supported by
+  * the CPU by parsing the cpuinfo.
+@@ -231,6 +256,27 @@ pocl_cpuinfo_detect_compute_unit_count()
+     } 
+   return -1;  
+ }
++#endif
++
++/**
++ * Detects the maximum clock frequency of the CPU.
++ *
++ * Assumes all cores have the same max clock freq.
++ *
++ * @return The clock frequency in MHz.
++ */
++int
++pocl_cpuinfo_detect_max_clock_frequency()
++{
++  //XXX PLEASE NOTE, THIS IS NOT TOO PORTABLE (AND/OR ACCURATE)!
++  const char mib[] = "hw.clockrate";
++  size_t size = sizeof(int);
++  int clockrate;
++
++  sysctlbyname(mib, (void *)&clockrate, &size, NULL, 0);
++  
++  return clockrate;
++ }
+ 
+ #ifdef POCL_ANDROID
+ 
+@@ -269,6 +315,7 @@ pocl_cpuinfo_get_cpu_name_and_vendor(cl_
+    * short_name is in the .data anyways.*/
+   device->long_name = device->short_name;
+ 
++#if 0
+   /* default vendor and vendor_id, in case it cannot be found by other means */
+   device->vendor = cpuvendor_default;
+   if (device->vendor_id == 0)
+@@ -317,6 +364,7 @@ pocl_cpuinfo_get_cpu_name_and_vendor(cl_
+   char *new_name = (char*)malloc (len);
+   snprintf (new_name, len, "%s-%s", device->short_name, start);
+   device->long_name = new_name;
++#endif
+ 
+ }
+ 
diff --git a/lang/pocl/files/patch-scripts_Makefile.in b/lang/pocl/files/patch-scripts_Makefile.in
new file mode 100644
index 000000000000..49cc3878bd53
--- /dev/null
+++ b/lang/pocl/files/patch-scripts_Makefile.in
@@ -0,0 +1,21 @@
+dirty hack, pocl-standalone will be installed into stage with
+r-xr-xr-x permissions. So writing to it is problemetic. give the file write
+permission and take it away after.
+
+Upstream (pre 0.14) will be using cmake so this hack is only temporary.
+
+--- scripts/Makefile.in.orig	2016-09-13 22:10:48.091956000 +0200
++++ scripts/Makefile.in	2016-09-13 22:13:33.388168000 +0200
+@@ -651,10 +651,11 @@
+ 
+ install-exec-hook: $(bin_SCRIPTS) 
+ 	for f in $(bin_SCRIPTS) ; do \
++		chmod +w "$(DESTDIR)$(bindir)/$$f" ; \
+ 		sed -e '/^# BEGIN REMOVE ONCE INSTALLED$$/,/^# END REMOVE ONCE INSTALLED$$/d' \
+ 			> "$(DESTDIR)$(bindir)/$$f" \
+ 			< "$$f" && \
+-		chmod +x "$(DESTDIR)$(bindir)/$$f" ; \
++		chmod +x-w "$(DESTDIR)$(bindir)/$$f" ; \
+ 	done
+ 
+ # Tell versions [3.59,3.63) of GNU make to not export all variables.
diff --git a/lang/pocl/pkg-descr b/lang/pocl/pkg-descr
new file mode 100644
index 000000000000..eb101155d3b3
--- /dev/null
+++ b/lang/pocl/pkg-descr
@@ -0,0 +1,22 @@
+Portable OpenCL (pocl)
+----------------------
+
+Portable OpenCL aims to be an efficient open source (MIT-licensed) 
+implementation of the OpenCL 1.2 standard. 
+
+In addition to producing an easily portable open source OpenCL
+implementation, another major goal of the project is improving 
+performance portability of OpenCL programs with compiler 
+optimizations, reducing the need for target-dependent manual 
+optimizations. At the core of pocl is a set of LLVM passes 
+used to statically parallelize multiple work-items with the kernel
+compiler, even in the presence of work-group barriers. This enables 
+parallelization of the fine-grained static concurrency in the work 
+groups in multiple ways (SIMD, VLIW, superscalar,...).
+
+The code base is modularized to allow easy adding of new "device drivers"
+in the host-device layer. A generic multithreaded "target driver" is 
+included. It allows running OpenCL applications on a host that supports 
+the pthread library with multithreading at the work group granularity.
+
+WWW: http://portablecl.org/
diff --git a/lang/pocl/pkg-message b/lang/pocl/pkg-message
new file mode 100644
index 000000000000..3dfd31c876d7
--- /dev/null
+++ b/lang/pocl/pkg-message
@@ -0,0 +1,12 @@
+
+Deadlocks (freezes) on FreeBSD:
+
+OpenCL applications using pocl on FreeBSD must be compiled with 
+options CFLAGS+=-pthread or CXXFLAGS+=-pthread, otherwise someone risk
+that a library may not initialize the threading on BSD independently, 
+even if an ICD loader is used.
+
+See: 
+	http://www.freebsd.org/cgi/query-pr.cgi?pr=163512
+
+(Source: http://portablecl.org/docs/html/faq.html?highlight=freebsd)
diff --git a/lang/pocl/pkg-plist b/lang/pocl/pkg-plist
new file mode 100644
index 000000000000..5d52cde5f1aa
--- /dev/null
+++ b/lang/pocl/pkg-plist
@@ -0,0 +1,27 @@
+bin/pocl-standalone
+etc/OpenCL/vendors/pocl.icd
+include/poclu.h
+lib/libpocl.a
+lib/libpocl.la
+lib/libpocl.so
+lib/libpocl.so.1
+lib/libpocl.so.1.6.0
+lib/libpoclu.a
+lib/libpoclu.la
+lib/libpoclu.so
+lib/libpoclu.so.1
+lib/libpoclu.so.1.6.0
+lib/pocl/llvmopencl.a
+lib/pocl/llvmopencl.la
+lib/pocl/llvmopencl.so
+lib/pocl/llvmopencl.so.7
+lib/pocl/llvmopencl.so.7.0.0
+libdata/pkgconfig/pocl.pc
+%%DATADIR%%/include/_kernel.h
+%%DATADIR%%/include/_kernel_c.h
+%%DATADIR%%/include/_kernel_constants.h
+%%DATADIR%%/include/pocl.h
+%%DATADIR%%/include/pocl_device.h
+%%DATADIR%%/include/pocl_tests.h
+%%DATADIR%%/include/pocl_types.h
+%%DATADIR%%/kernel-amd64-portbld-freebsd%%OSREL%%.bc