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Diffstat (limited to 'xmake/includes/check/check_alignof.lua')
| -rw-r--r-- | xmake/includes/check/check_alignof.lua | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/xmake/includes/check/check_alignof.lua b/xmake/includes/check/check_alignof.lua new file mode 100644 index 000000000..1c97883c9 --- /dev/null +++ b/xmake/includes/check/check_alignof.lua @@ -0,0 +1,155 @@ +--!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) 2026, Xmake Open Source Community. +-- +-- @author karurochari +-- @file check_alignof.lua +-- + +-- check c alignof(type) add to macro definition support cross compile +-- +-- from https://github.com/xmake-io/xmake/issues/4345 +-- +-- e.g. +-- +-- check_alignof("ALIGNOF_LONG", "long") => ALIGNOF_LONG=4 +-- +-- configvar_check_alignof("ALIGNOF_LONG", "long") => #define ALIGNOF_LONG 4 +-- +local binary_match_pattern = 'INFO:align%[(%d+)%]' + +local check_alignof_template = [[ +#define ALIGN (alignof(${TYPE})) +static char info_align[] = {'I', 'N', 'F', 'O', ':', 'a','l','i','g','n','[', + ('0' + ((ALIGN / 10000)%10)), + ('0' + ((ALIGN / 1000)%10)), + ('0' + ((ALIGN / 100)%10)), + ('0' + ((ALIGN / 10)%10)), + ('0' + (ALIGN % 10)), + ']', + '\0'}; + +int main(int argc, char *argv[]) { + int require = 0; + require += info_align[argc]; + (void)argv; + return require; +}]] + +function _binary_match(content) + local match = content:match(binary_match_pattern) + if match then + return match:ltrim("0") + end +end + +function check_alignof(definition, typename, opt) + opt = opt or {} + if opt.number == nil then + opt.number = true + end + local optname = opt.name or ("__" .. definition) + local snippet = opt.snippet or "" + interp_save_scope() + option(optname) + set_showmenu(false) + add_cxxsnippets(definition, check_alignof_template:gsub('${TYPE}', typename), {binary_match = _binary_match}) + if opt.links then + add_links(opt.links) + end + if opt.includes then + add_cxxincludes(opt.includes) + end + if opt.languages then + set_languages(opt.languages) + end + if opt.cflags then + add_cflags(opt.cflags) + end + if opt.cxflags then + add_cxflags(opt.cxflags) + end + if opt.defines then + add_defines(opt.defines) + end + if opt.warnings then + set_warnings(opt.warnings) + end + after_check(function (option) + if option:value() then + if opt.number then + option:add("defines", definition .. "=" .. tonumber(option:value())) + elseif opt.quote == false then + option:add("defines", definition .. "=" .. option:value()) + else + option:add("defines", definition .. "=\"" .. option:value() .. "\"") + end + end + end) + option_end() + interp_restore_scope() + add_options(optname) +end + + +function configvar_check_alignof(definition, typename, opt) + opt = opt or {} + if opt.number == nil then + opt.number = true + end + local optname = opt.name or ("__" .. definition) + local defname, defval = table.unpack(definition:split('=')) + interp_save_scope() + option(optname) + set_showmenu(false) + add_cxxsnippets(definition, check_alignof_template:gsub('${TYPE}', typename), {binary_match = _binary_match}) + if opt.default == nil then + set_configvar(defname, defval or 1, {quote = opt.quote}) + end + if opt.links then + add_links(opt.links) + end + if opt.includes then + add_cxxincludes(opt.includes) + end + if opt.languages then + set_languages(opt.languages) + end + if opt.cflags then + add_cflags(opt.cflags) + end + if opt.cxflags then + add_cxflags(opt.cxflags) + end + if opt.defines then + add_defines(opt.defines) + end + if opt.warnings then + set_warnings(opt.warnings) + end + after_check(function (option) + if option:value() then + option:set("configvar", defname, opt.number and tonumber(option:value()) or option:value(), {quote = opt.quote}) + end + end) + option_end() + interp_restore_scope() + if opt.default == nil then + add_options(optname) + else + set_configvar(defname, has_config(optname) and (defval or 1) or opt.default, {quote = true}) + end +end + |