add libmem

[luadebug]

[libmem] add new port

[luadebug]

I did my best to fulfill requests. But now it have to implement keystone port for xrepo, so we could advance further.

[waruqi]

right, we need to add keystone first

[luadebug]

@waruqi Should compile for linux as well now.

[luadebug]

error: @programdir/core/sandbox/modules/os.lua:264: cannot runv(kstool -b x64 "mov rax, 1; ret"), No such file or directory
How come for capstone no such issue persists?
Maybe we need python 3 persisting on system?

[luadebug]

We most likely need to exclude IPhoneOS according to
#5474

on_install("!iphoneos", function (package)

Most likely arm/arm64 is not implemented to work for libmem itself.

[EnergoStalin]

Hopefully @rdbo would upstream somewhat similiar to this patch since in his cmake build they don't get exported either but seems intended as part of the api.

[waruqi]

we can export symbols automatically.

xmake-repo/packages/u/udt/xmake.lua

Line 27 in 9c99372

add_rules("utils.symbols.export_all", {export_classes = true})

[waruqi]

error: ...es/private/action/require/impl/actions/patch_sources.lua:100: patch(/home/runner/work/xmake-repo/xmake-repo/packages/l/libmem/patches/cxxexport.patch): unmatched checksum!
stack traceback:

[waruqi]

github ci 挂了 不知道为啥

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

---

github ci is down. I don’t know why.

[luadebug]

https://www.githubstatus.com/
Seems stable. You can try to run this PR #5490
(maybe that is 3rd dependency, but I prefer keep leave it as it is now)
Re-run #5488 ?

[EnergoStalin]

Maybe make it more strict only adding is_plat("windows") since other builds working?

Patch

diff --git a/packages/l/libmem/port/xmake.lua b/packages/l/libmem/port/xmake.lua
index b50db9ef..0f80bc20 100644
--- a/packages/l/libmem/port/xmake.lua
+++ b/packages/l/libmem/port/xmake.lua
@@ -8,12 +8,10 @@ target("libmem")
 
     if is_plat("windows") and is_kind("shared") then
         add_rules("utils.symbols.export_all", {export_classes = true, export_filter = function (symbol)
-            if symbol:find("libmem", 1, true) then
-                return true
-            end
+            return symbol:find("libmem", 1, true) and true or false
         end})
     end
-    if is_kind("shared") then
+    if is_plat("windows") or is_kind("shared") then
         add_defines("LM_EXPORT")
     end
 
diff --git a/packages/l/libmem/xmake.lua b/packages/l/libmem/xmake.lua
index 9e07cdd5..ed80ace1 100644
--- a/packages/l/libmem/xmake.lua
+++ b/packages/l/libmem/xmake.lua
@@ -21,7 +21,7 @@ package("libmem")
     end
 
     on_load(function(package)
-        if package:config("shared") then
+        if is_plat("windows") or package:config("shared") then
             package:add("defines", "LM_EXPORT")
         end
     end)

[waruqi]

done