From 4f2404c9803df8144992c4d4c4f76d4dceebc9e0 Mon Sep 17 00:00:00 2001
From: swcompiler <lc@wxiat.com>
Date: Mon, 15 Dec 2025 17:23:09 +0800
Subject: [PATCH] control sw64 not to build openmp and fix compiler-rt error

---
 ...-Fix-clear_cache.c-when-building-for.patch | 26 +++++++++++++++++++
 llvm.spec                                     | 24 ++++++++++++++---
 2 files changed, 47 insertions(+), 3 deletions(-)
 create mode 100755 0001-SW64-Compiler-RT-Fix-clear_cache.c-when-building-for.patch

diff --git a/0001-SW64-Compiler-RT-Fix-clear_cache.c-when-building-for.patch b/0001-SW64-Compiler-RT-Fix-clear_cache.c-when-building-for.patch
new file mode 100755
index 0000000..fc37a40
--- /dev/null
+++ b/0001-SW64-Compiler-RT-Fix-clear_cache.c-when-building-for.patch
@@ -0,0 +1,26 @@
+From 3b62790bdca38b3e5555cee478948e1b16a0c852 Mon Sep 17 00:00:00 2001
+From: swcompiler <lc@wxiat.com>
+Date: Thu, 11 Dec 2025 08:54:47 +0000
+Subject: [PATCH] [SW64][Compiler-RT] Fix clear_cache.c when building for sw_64
+ on openEuler24
+
+---
+ compiler-rt/lib/builtins/clear_cache.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/compiler-rt/lib/builtins/clear_cache.c b/compiler-rt/lib/builtins/clear_cache.c
+index af1f4a212..cb6f0dffa 100644
+--- a/compiler-rt/lib/builtins/clear_cache.c
++++ b/compiler-rt/lib/builtins/clear_cache.c
+@@ -54,6 +54,8 @@ uintptr_t GetCurrentProcess(void);
+ //FIXME
+ #define __PNR_cacheflush        -10104
+ #define __NR_cacheflush         __PNR_cacheflush
++
++extern long int syscall (long int __sysno, ...) __THROW;
+ #endif
+ 
+ #if defined(__linux__) && defined(__riscv)
+-- 
+2.43.0
+
diff --git a/llvm.spec b/llvm.spec
index b6f5c6d..0dae27b 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -110,6 +110,10 @@
 
 %global pkg_name_compiler_rt %{?scl_prefix}compiler-rt
 
+%ifarch sw_64
+%global optflags %(echo %{optflags} | sed 's/-fgcc-compatible//')
+%endif
+
 %ifnarch x86_64
 %global optflags %(echo %{optflags} | sed 's/-fstack-clash-protection//')
 # may affect cmake check for fpic
@@ -164,7 +168,7 @@ Name:     llvm
 Name:     llvm-toolset-%{maj_ver}
 %endif
 Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
-Release:	56
+Release:	57
 Summary:	The Low Level Virtual Machine
 
 License:	NCSA
@@ -186,6 +190,9 @@ Patch0004: 0004-remove-cmake_minimum_required.patch
 %if %{with bisheng_autotuner}
 Patch0005: 0005-Fix-for-building-autotuner-with-mlir.patch
 %endif
+%ifarch sw_64
+Patch0006: 0001-SW64-Compiler-RT-Fix-clear_cache.c-when-building-for.patch
+%endif
 
 BuildRequires:	gcc
 BuildRequires:	gcc-c++
@@ -830,7 +837,11 @@ sed -i 's/"\([a-zA-Z0-9_-]\+\)-openEuler-linux"/"\1-openEuler-linux", "\1-%{_ven
 %global projects %{projects};bolt
 %endif
 
+%ifnarch sw_64
 %global runtimes compiler-rt;openmp
+%else
+%global runtimes compiler-rt
+%endif
 
 %if %{with libcxx}
 %global runtimes %{runtimes};libcxx;libcxxabi;libunwind
@@ -1146,6 +1157,7 @@ cd %{build_src_dir}/_build_libcxx
 
 #region libomp build
 
+%ifnarch sw_64
 mkdir %{build_src_dir}/_build_openmp
 cd %{build_src_dir}/_build_openmp
 
@@ -1173,6 +1185,7 @@ cd %{build_src_dir}/_build_openmp
 	-DCMAKE_SKIP_RPATH:BOOL=ON
 
 %build_tool
+%endif
 #endregion libomp build
 #region compiler-rt build
 
@@ -1257,7 +1270,7 @@ cd %{build_src_dir}
 mkdir -p %{buildroot}/%{_bindir}
 
 # Remove rpath for openmp library
-%ifnarch %{ix86} %{arm} riscv64 loongarch64
+%ifnarch %{ix86} %{arm} riscv64 loongarch64 sw_64
 %global openmp_library libomptarget.rtl.cuda.so.17 libomptarget.rtl.%{_arch}.so.17 libomptarget.so.17
 for f in %{openmp_library}
 do
@@ -2698,7 +2711,7 @@ fi
 %{_prefix}/lib/clang/%{maj_ver}/lib/%{compiler_rt_triple}/clang_rt.crtend.o
 %endif
 
-%ifnarch %{ix86} s390x riscv64 loongarch64
+%ifnarch %{ix86} s390x riscv64 loongarch64 sw_64
 %{install_libdir}/clang/%{maj_ver}/lib/%{compiler_rt_triple}/liborc_rt.a
 %endif
 
@@ -2711,6 +2724,7 @@ fi
 
 #region OPENMP files
 
+%ifnarch sw_64
 %files -n %{pkg_name_libomp}
 %license openmp/LICENSE.TXT
 %{install_libdir}/libomp.so
@@ -2765,6 +2779,7 @@ fi
 %{install_includedir}/offload
 %endif
 %endif
+%endif
 
 #endregion OPENMP files
 
@@ -3012,6 +3027,9 @@ fi
 #endregion files
 
 %changelog
+* Mon Dec 15 2025 swcompiler <lc@wxiat.com> - 17.0.6-57
+- control sw64 not to build openmp and fix compiler-rt error
+
 * Tue Dec 09 2025 liyunfei <liyunfei33@huawei.com> - 17.0.6-56
 - update to llvm-for-oe-17.0.6-2512.0.2
 - release-note https://gitee.com/openeuler/llvm-project/releases/tag/llvm-for-oE-17.0.6-2512.0.2
-- 
Gitee