diff options
Diffstat (limited to 'xmake/rules')
| -rw-r--r-- | xmake/rules/utils/symbols/export_all/export_all.lua | 64 |
1 files changed, 62 insertions, 2 deletions
diff --git a/xmake/rules/utils/symbols/export_all/export_all.lua b/xmake/rules/utils/symbols/export_all/export_all.lua index b218dca39..6e077aaf3 100644 --- a/xmake/rules/utils/symbols/export_all/export_all.lua +++ b/xmake/rules/utils/symbols/export_all/export_all.lua @@ -25,6 +25,7 @@ import("core.base.option") import("core.base.hashset") import("core.project.depend") import("utils.progress") +import("utils.binary.readsyms") -- It is not very accurate because some rules automatically -- generate objectfiles and do not save the corresponding sourcefiles. @@ -146,6 +147,59 @@ function _get_allsymbols_by_objdump(target, objdump, opt) return allsymbols end +-- use readsyms to get all symbols from object files +function _get_allsymbols_by_readsyms(target, opt) + opt = opt or {} + local allsymbols = hashset.new() + local export_classes = opt.export_classes + local export_filter = opt.export_filter + local sourcefiles_map = {} + if export_filter then + _get_sourcefiles_map(target, sourcefiles_map) + end + local objectfiles = target:objectfiles() + local symbols = readsyms(objectfiles) + if symbols then + for _, sym in ipairs(symbols) do + if sym.name and sym.type then + -- only export function symbols (T/t) for DLL exports + -- skip data (D/d), bss (B/b), other sections (S/s), and undefined (U) symbols + if sym.type == "T" or sym.type == "t" then + local symbol = sym.name + -- we need ignore DllMain, https://github.com/xmake-io/xmake/issues/3992 + if target:is_arch("x86") and symbol:startswith("_") and not symbol:startswith("__") and not symbol:startswith("_DllMain@") then + symbol = symbol:sub(2) + end + if export_filter then + -- find sourcefile for this symbol (approximate match) + local sourcefile = nil + for objfile, srcfile in pairs(sourcefiles_map) do + if objfile:find(path.basename(symbol), 1, true) then + sourcefile = srcfile + break + end + end + if export_filter(symbol, {sourcefile = sourcefile}) then + allsymbols:insert(symbol) + end + elseif not symbol:startswith("__") then + if export_classes or not symbol:startswith("?") then + if export_classes then + if not symbol:startswith("??_G") and not symbol:startswith("??_E") then + allsymbols:insert(symbol) + end + else + allsymbols:insert(symbol) + end + end + end + end + end + end + end + return allsymbols +end + -- export all symbols for dynamic library function main(target, opt) @@ -177,7 +231,7 @@ function main(target, opt) export_classes = export_classes, export_filter = export_filter}) end - if not allsymbols then + if not allsymbols or allsymbols:empty() then local msvc = toolchain.load("msvc", {plat = target:plat(), arch = target:arch()}) if msvc:check() then local dumpbin = assert(find_tool("dumpbin", {envs = msvc:runenvs()}), "dumpbin not found!") @@ -186,9 +240,15 @@ function main(target, opt) export_filter = export_filter}) end end + -- fallback to readsyms if still no symbols found + if not allsymbols or allsymbols:empty() then + allsymbols = _get_allsymbols_by_readsyms(target, { + export_classes = export_classes, + export_filter = export_filter}) + end -- export all symbols - if allsymbols and allsymbols:size() > 0 then + if allsymbols and not allsymbols:empty() then local allsymbols_file = io.open(allsymbols_filepath, 'w') allsymbols_file:print("EXPORTS") for _, symbol in allsymbols:keys() do |