add bpf rule

1 files changed, 43 insertions, 0 deletions

diff --git a/xmake/rules/platform/linux/bpf/xmake.lua b/xmake/rules/platform/linux/bpf/xmake.lua
new file mode 100644
index 000000000..d9bec3fc6
--- /dev/null
+++ b/xmake/rules/platform/linux/bpf/xmake.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-present, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        xmake.lua
+--
+
+-- add *.bpf.c for linux bpf program
+-- @see https://github.com/xmake-io/xmake/issues/1274
+rule("platform.linux.bpf")
+    set_extensions(".bpf.c")
+    on_config(function (target)
+        local headerdir = path.join(target:autogendir(), "rules", "bpf")
+        target:add("includedirs", headerdir)
+    end)
+    before_buildcmd_file(function (target, batchcmds, sourcefile, opt)
+        local headerfile = path.join(target:autogendir(), "rules", "bpf", (path.filename(sourcefile):gsub("%.bpf%.c", ".skel.h")))
+        local objectfile = path.join(target:autogendir(), "rules", "bpf", (path.filename(sourcefile):gsub("%.bpf%.c", ".bpf.o")))
+        target:add("includedirs", path.directory(headerfile))
+        batchcmds:show_progress(opt.progress, "${color.build.object}compiling.bpf %s", sourcefile)
+        batchcmds:mkdir(path.directory(objectfile))
+        batchcmds:compile(sourcefile, objectfile, {configs = {force = {cxflags = {"-target bpf", "-g"}, defines = "__TARGET_ARCH_x86"}}})
+        batchcmds:mkdir(path.directory(headerfile))
+        batchcmds:vrunv("llvm-strip", {"-g", objectfile})
+        batchcmds:vrunv("bpftool", {"gen", "skeleton", objectfile}, {stdout = headerfile})
+        batchcmds:add_depfiles(sourcefile)
+        batchcmds:set_depmtime(os.mtime(headerfile))
+        batchcmds:set_depcache(target:dependfile(headerfile))
+    end)
+