add libomp for openmp examples

5 files changed, 95 insertions, 5 deletions

diff --git a/tests/projects/openmp/hello/src/main.c b/tests/projects/openmp/hello/src/main.c
index cea215566..54ba9db96 100644
--- a/tests/projects/openmp/hello/src/main.c
+++ b/tests/projects/openmp/hello/src/main.c
@@ -5,7 +5,7 @@ int main(int argc, char** argv)
 {
     #pragma omp parallel
     {
-        printf("hello  %d\n", omp_get_thread_num());
+        printf("hello %d\n", omp_get_thread_num());
     }
     return 0;
 }
diff --git a/tests/projects/openmp/hello/xmake.lua b/tests/projects/openmp/hello/xmake.lua
index 685a6a34b..c1f837287 100644
--- a/tests/projects/openmp/hello/xmake.lua
+++ b/tests/projects/openmp/hello/xmake.lua
@@ -1,3 +1,6 @@
+add_requires("libomp", {optional = true})
 target("hello")
     set_kind("binary")
     add_files("src/*.c")
+    add_rules("c.openmp")
+    add_packages("libomp")
diff --git a/xmake/core/sandbox/modules/import/core/tool/compiler.lua b/xmake/core/sandbox/modules/import/core/tool/compiler.lua
index a60a8401a..ef7bb4371 100644
--- a/xmake/core/sandbox/modules/import/core/tool/compiler.lua
+++ b/xmake/core/sandbox/modules/import/core/tool/compiler.lua
@@ -32,14 +32,10 @@ local sandbox  = require("sandbox/sandbox")
 
 -- load the compiler from the given source kind
 function sandbox_core_tool_compiler.load(sourcekind, opt)
-
-    -- get the compiler instance
     local instance, errors = compiler.load(sourcekind, opt and opt.target or nil)
     if not instance then
         raise(errors)
     end
-
-    -- ok
     return instance
 end
 
@@ -166,6 +162,23 @@ function sandbox_core_tool_compiler.build(sourcefiles, targetfile, opt)
     end
 end
 
+-- get the current compiler name of given language kind
+--
+-- @param langkind      the language kind, e.g. c, cxx, mm, mxx, swift, go, rust, d, as
+--
+-- @return              the compiler name
+--
+function sandbox_core_tool_compiler.name(langkind, opt)
+
+    -- get sourcekind from the language kind
+    local sourcekind = language.langkinds()[langkind]
+    assert(sourcekind, "unknown language kind: " .. langkind)
+
+    -- get the compiler instance
+    local instance = sandbox_core_tool_compiler.load(sourcekind, opt)
+    return instance:name()
+end
+
 -- get all compiler features
 --
 -- @param langkind      the language kind, e.g. c, cxx, mm, mxx, swift, go, rust, d, as
diff --git a/xmake/rules/c++/openmp/load.lua b/xmake/rules/c++/openmp/load.lua
new file mode 100644
index 000000000..6678e46e3
--- /dev/null
+++ b/xmake/rules/c++/openmp/load.lua
@@ -0,0 +1,43 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Copyright (C) 2015-2020, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        load.lua
+--
+
+-- imports
+import("core.tool.compiler")
+
+-- main entry
+function main(target, langkind)
+    local compiler_name = compiler.name(langkind)
+    local flag_name     = langkind .. "flags"
+    if compiler_name == "cl" then
+        target:add(flag_name, "/openmp")
+    elseif compiler_name == "clang" or compiler_name == "clangxx" then
+        if target:is_plat("macosx") then
+            target:add(flag_name, "-Xpreprocessor -fopenmp")
+        else
+            target:add(flag_name, "-fopenmp")
+        end
+    elseif compiler_name == "gcc" or compiler_name == "gxx" then
+        target:add(flag_name, "-fopenmp")
+    elseif compiler_name == "icc" or compiler_name == "icpc" then
+        target:add(flag_name, "-qopenmp")
+    elseif compiler_name == "icl" then
+        target:add(flag_name, "-Qopenmp")
+    end
+end
diff --git a/xmake/rules/c++/openmp/xmake.lua b/xmake/rules/c++/openmp/xmake.lua
new file mode 100644
index 000000000..6a43810ad
--- /dev/null
+++ b/xmake/rules/c++/openmp/xmake.lua
@@ -0,0 +1,31 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+-- Copyright (C) 2015-2020, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        xmake.lua
+--
+
+-- define rule: c.openmp
+rule("c.openmp")
+    on_load(function (target)
+        import("load")(target, "c")
+    end)
+
+-- define rule: c++.openmp
+rule("c++.openmp")
+    on_load(function (target)
+        import("load")(target, "cxx")
+    end)