feat(ascendc): add Huawei Ascend C toolchain support

Add toolchain, language, rules, and compiler modules for the
bisheng compiler driver from CANN (Compute Architecture for
Neural Networks) toolkit. Supports .asc (Ascend C kernel) and
.aicpu (AI-CPU operator) source kinds with binary/static/shared
target types.

- Toolchain: SDK auto-detection via ASCEND_HOME_PATH env or --sdk
- Compiler: bisheng module inherits from clang, adds add_sourceflags
  for explicit sourcekind overrides
- Rules: ascendc.env (default C++17), npuarchs (--npu-arch), build
- Language: check_main detection, add_ascnpuarchs API
- Tests: unit tests for check_main, project tests for libs/mixed

Fixes #7506

3 files changed, 247 insertions, 0 deletions

diff --git a/xmake/languages/ascendc/check_main.lua b/xmake/languages/ascendc/check_main.lua
new file mode 100644
index 000000000..0588ba48e
--- /dev/null
+++ b/xmake/languages/ascendc/check_main.lua
@@ -0,0 +1,38 @@
+--!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-present, Xmake Open Source Community.
+--
+-- @author      wuzhenqing
+-- @file        check_main.lua
+--
+
+-- check it
+function main(sourcefile)
+
+    -- load source code
+    local sourcecode = io.readfile(sourcefile)
+
+    -- remove comment first
+    sourcecode = sourcecode:gsub("/%*.-%*/", "")
+    sourcecode = sourcecode:gsub("//[^\n]*", "")
+
+    -- find int main(int argc, char** argv) {}
+    if sourcecode:find("%s+main%s*%(.-%)") then
+        return true
+    end
+
+    -- no main function
+    return false
+end
diff --git a/xmake/languages/ascendc/load.lua b/xmake/languages/ascendc/load.lua
new file mode 100644
index 000000000..bdcca0eba
--- /dev/null
+++ b/xmake/languages/ascendc/load.lua
@@ -0,0 +1,97 @@
+--!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-present, Xmake Open Source Community.
+--
+-- @author      wuzhenqing
+-- @file        load.lua
+--
+
+-- get apis
+function _get_apis()
+    local apis = {}
+    apis.values = {
+        -- target.add_xxx
+        "target.add_links"
+    ,   "target.add_syslinks"
+    ,   "target.add_ascnpuarchs"
+    ,   "target.add_ascflags"
+    ,   "target.add_aicpuflags"
+    ,   "target.add_ldflags"
+    ,   "target.add_arflags"
+    ,   "target.add_shflags"
+    ,   "target.add_defines"
+    ,   "target.add_undefines"
+        -- @note do not translate path, it's usually an absolute path or contains
+        -- $ORIGIN/@loader_path
+    ,   "target.add_rpathdirs"
+        -- option.add_xxx
+    ,   "option.add_links"
+    ,   "option.add_syslinks"
+    ,   "option.add_ascnpuarchs"
+    ,   "option.add_ascflags"
+    ,   "option.add_aicpuflags"
+    ,   "option.add_ldflags"
+    ,   "option.add_arflags"
+    ,   "option.add_shflags"
+    ,   "option.add_defines"
+    ,   "option.add_undefines"
+    ,   "option.add_rpathdirs"
+        -- package.add_xxx
+    ,   "package.add_links"
+    ,   "package.add_syslinks"
+    ,   "package.add_ascflags"
+    ,   "package.add_aicpuflags"
+    ,   "package.add_ldflags"
+    ,   "package.add_arflags"
+    ,   "package.add_shflags"
+    ,   "package.add_defines"
+    ,   "package.add_undefines"
+    ,   "package.add_rpathdirs"
+        -- toolchain.add_xxx
+    ,   "toolchain.add_links"
+    ,   "toolchain.add_syslinks"
+    ,   "toolchain.add_ascnpuarchs"
+    ,   "toolchain.add_ascflags"
+    ,   "toolchain.add_aicpuflags"
+    ,   "toolchain.add_ldflags"
+    ,   "toolchain.add_arflags"
+    ,   "toolchain.add_shflags"
+    ,   "toolchain.add_defines"
+    ,   "toolchain.add_undefines"
+    ,   "toolchain.add_rpathdirs"
+    }
+    apis.groups = {
+        -- target.add_xxx
+        "target.add_linkorders"
+    ,   "target.add_linkgroups"
+        -- package.add_xxx
+    ,   "package.add_linkorders"
+    ,   "package.add_linkgroups"
+    }
+    apis.paths = {
+        -- target.add_xxx
+        "target.add_linkdirs"
+    ,   "target.add_includedirs"
+    ,   "target.add_sysincludedirs"
+        -- option.add_xxx
+    ,   "option.add_linkdirs"
+    ,   "option.add_sysincludedirs"
+    }
+    return apis
+end
+
+function main()
+    return {apis = _get_apis()}
+end
diff --git a/xmake/languages/ascendc/xmake.lua b/xmake/languages/ascendc/xmake.lua
new file mode 100644
index 000000000..27774c16a
--- /dev/null
+++ b/xmake/languages/ascendc/xmake.lua
@@ -0,0 +1,112 @@
+--!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-present, Xmake Open Source Community.
+--
+-- @author      wuzhenqing
+-- @file        xmake.lua
+--
+
+language("ascendc")
+    add_rules("ascendc")
+    set_sourcekinds {asc = ".asc", aicpu = ".aicpu"}
+    set_sourceflags {asc = "ascflags", aicpu = "aicpuflags"}
+    set_targetkinds {binary = "ascld", static = "ar", shared = "ascsh"}
+    set_targetflags {binary = "ldflags", static = "arflags", shared = "shflags"}
+    set_langkinds {ascendc = "asc"}
+    set_mixingkinds("asc", "aicpu", "cc", "cxx", "as")
+
+    on_load("load")
+    on_check_main("check_main")
+
+    set_nameflags {
+        object = {
+            "config.includedirs"
+        ,   "target.runtimes"
+        ,   "target.symbols"
+        ,   "target.warnings"
+        ,   "target.optimize:check"
+        ,   "target.vectorexts:check"
+        ,   "target.languages"
+        ,   "target.includedirs"
+        ,   "target.defines"
+        ,   "target.undefines"
+        ,   "toolchain.includedirs"
+        ,   "toolchain.defines"
+        ,   "toolchain.undefines"
+        ,   "target.sysincludedirs"
+        ,   "toolchain.sysincludedirs"
+        }
+    ,   binary = {
+            "target.runtimes"
+        ,   "config.linkdirs"
+        ,   "target.linkdirs"
+        ,   "target.rpathdirs"
+        ,   "target.strip"
+        ,   "target.symbols"
+        ,   "target.optimize:check"
+        ,   "toolchain.linkdirs"
+        ,   "toolchain.rpathdirs"
+        ,   "config.links"
+            -- move it before target.links to keep package/dependency order correct
+        ,   "target.linkgroups"
+        ,   "target.links"
+        ,   "toolchain.links"
+        ,   "config.syslinks"
+        ,   "target.syslinks"
+        ,   "toolchain.syslinks"
+        }
+    ,   shared = {
+            "target.runtimes"
+        ,   "config.linkdirs"
+        ,   "target.linkdirs"
+        ,   "target.rpathdirs"
+        ,   "target.strip"
+        ,   "target.symbols"
+        ,   "target.optimize:check"
+        ,   "toolchain.linkdirs"
+        ,   "toolchain.rpathdirs"
+        ,   "config.links"
+        ,   "target.links"
+        ,   "target.linkgroups"
+        ,   "toolchain.links"
+        ,   "config.syslinks"
+        ,   "target.syslinks"
+        ,   "toolchain.syslinks"
+        }
+    ,   static = {
+            "target.strip"
+        ,   "target.symbols"
+        }
+    }
+
+    set_menu {
+                config =
+                {
+                    {category = "Cross Compilation Configuration/Compiler Flags Configuration"                       }
+                ,   {nil, "ascflags",      "kv", nil,          "The Ascend C Kernel Compiler Flags"                 }
+                ,   {nil, "aicpuflags",    "kv", nil,          "The Ascend C AI-CPU Compiler Flags"                 }
+
+                ,   {category = "Cross Compilation Configuration/Linker Flags Configuration"                         }
+                ,   {nil, "ldflags",       "kv", nil,          "The Binary Linker Flags"                            }
+                ,   {nil, "arflags",       "kv", nil,          "The Static Library Linker Flags"                    }
+                ,   {nil, "shflags",       "kv", nil,          "The Shared Library Linker Flags"                    }
+
+                ,   {category = "Cross Compilation Configuration/Builtin Flags Configuration"                        }
+                ,   {nil, "links",         "kv", nil,          "The Link Libraries"                                 }
+                ,   {nil, "syslinks",      "kv", nil,          "The System Link Libraries"                          }
+                ,   {nil, "linkdirs",      "kv", nil,          "The Link Search Directories"                        }
+                ,   {nil, "includedirs",   "kv", nil,          "The Include Search Directories"                     }
+                }
+            }