abnativeelf: strip GCC LTO data from static libraries

Author: liushuyu

native/abnativeelf.cpp

@@ -584,7 +584,7 @@ int elf_copy_debug_symbols(const char *src_path, const char *dst_path,
     return -1;
   }
   FileLockGuard lock{fd};
-  struct stat st {};
+  struct stat st{};
   if (fstat(fd, &st) < 0) {
     perror("fstat");
     return -1;
@@ -643,6 +643,8 @@ int elf_copy_debug_symbols(const char *src_path, const char *dst_path,
   case BinaryType::Static:
     // skip static library
     flags |= AB_ELF_STRIP_ONLY;
+    args.emplace_back("-R");
+    args.emplace_back(".gnu.lto*");
     break;
   case BinaryType::Executable:
     // strip all symbols
@@ -705,8 +707,9 @@ int elf_copy_debug_symbols(const char *src_path, const char *dst_path,
   }
   if (!(flags & AB_ELF_STRIP_ONLY)) {
     const auto path = final_path.string();
-    const char *args[] = {"objcopy", "--only-keep-debug", src_path,
-                          path.c_str(), nullptr};
+    const char *args[] = {
+        "objcopy", "--only-keep-debug", "--compress-debug-sections=zstd",
+        src_path,  path.c_str(),        nullptr};
     int ret = forked_execvp("objcopy", const_cast<char *const *>(args));
     if (ret != 0) {
       return ret;