fix build error on loongarch64

(cherry picked from commit 5b756578caef7fffeb93f9f84484690c3ba40744)

libipt.spec

@@ -1,12 +1,12 @@
 Name:    libipt
 Version: 2.1
-Release: 1
+Release: 2
 Summary: Intel(R) Processor Trace Decoder Library
 License: BSD
 URL:     https://github.com/intel/libipt
 Source0: https://github.com/intel/%{name}/archive/v%{version}.tar.gz
 BuildRequires: gcc-c++ cmake 
-ExclusiveArch: %{ix86} x86_64
+ExclusiveArch: %{ix86} x86_64 loongarch64
 
 %description
 The Intel Processor Trace (Intel PT) Decoder Library is Intel's reference
@@ -51,6 +51,9 @@ ctest -V %{?_smp_mflags}
 %{_libdir}/%{name}.so
 
 %changelog
+* Tue Oct 29 2024 Wenlong Zhang <zhangwenlong@loongson.cn> - 2.1-2
+- fix build error on loongarch64
+
 * Thu Jan 25 2024 liuchao <liuchao173@huawei.com> - 2.1-1
 - Upgrade to 2.1:
   - a new tool 'ptseg' for finding the PSB segment for a given offset.