riscv64: fix build error

Self contained arrow version is 6.0.1 which has no RISC-V
support. The build error looks like:

  CMake Error at cmake_modules/SetupCxxFlags.cmake:439 (message):
     SSE4.2 required but compiler doesn't support it.

9002-fix-riscv64-build.patch

@@ -0,0 +1,41 @@
+diff --git a/src/arrow/cpp/cmake_modules/SetupCxxFlags.cmake b/src/arrow/cpp/cmake_modules/SetupCxxFlags.cmake
+index c1a1ba0..84f224b 100644
+--- a/src/arrow/cpp/cmake_modules/SetupCxxFlags.cmake
++++ b/src/arrow/cpp/cmake_modules/SetupCxxFlags.cmake
+@@ -32,6 +32,8 @@ if(NOT DEFINED ARROW_CPU_FLAG)
+     set(ARROW_CPU_FLAG "ppc")
+   elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "s390x")
+     set(ARROW_CPU_FLAG "s390x")
++  elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "riscv64")
++    set(ARROW_CPU_FLAG "riscv64")
+   else()
+     set(ARROW_CPU_FLAG "x86")
+   endif()
+diff --git a/src/arrow/cpp/src/arrow/vendored/fast_float/float_common.h b/src/arrow/cpp/src/arrow/vendored/fast_float/float_common.h
+index f7b7662..c1fe08d 100644
+--- a/src/arrow/cpp/src/arrow/vendored/fast_float/float_common.h
++++ b/src/arrow/cpp/src/arrow/vendored/fast_float/float_common.h
+@@ -10,7 +10,7 @@
+        || defined(__MINGW64__)                                          \
+        || defined(__s390x__)                                            \
+        || (defined(__ppc64__) || defined(__PPC64__) || defined(__ppc64le__) || defined(__PPC64LE__)) \
+-       || defined(__EMSCRIPTEN__))
++       || defined(__EMSCRIPTEN__) || defined(__riscv))
+ #define FASTFLOAT_64BIT
+ #elif (defined(__i386) || defined(__i386__) || defined(_M_IX86)   \
+      || defined(__arm__)                                        \
+diff --git a/src/common/Cycles.h b/src/common/Cycles.h
+index b546479..14bc6bf 100644
+--- a/src/common/Cycles.h
++++ b/src/common/Cycles.h
+@@ -84,6 +84,10 @@ class Cycles {
+     uint64_t tsc;
+     asm volatile("stck %0" : "=Q" (tsc) : : "cc");
+     return tsc;
++#elif defined(__riscv) && __riscv_xlen == 64
++    uint64_t tsc;
++    asm volatile ("rdtime %0" : "=r" (tsc));
++    return tsc;
+ #else
+ #warning No high-precision counter available for your OS/arch
+     return 0;

ceph.spec

@@ -174,7 +174,7 @@
 #################################################################################
 Name:		ceph
 Version:	18.2.2
-Release:	3
+Release:	4
 %if 0%{?fedora} || 0%{?rhel} || 0%{?openEuler}
 Epoch:		2
 %endif
@@ -197,6 +197,10 @@ Patch2: 0002-fix-compilation-with-cython3.patch
 Patch3: 0003-fix-CVE-2023-46159.patch
 Patch4: 0004-fix-mds-metadata-lost-in-one-case.patch
 
+%ifarch riscv64
+Patch9002: 9002-fix-riscv64-build.patch
+%endif
+
 %if 0%{?suse_version}
 # _insert_obs_source_lines_here
 ExclusiveArch:  x86_64 aarch64 ppc64le s390x
@@ -275,7 +279,9 @@ BuildRequires:	snappy-devel
 BuildRequires:	sqlite-devel
 BuildRequires:	sudo
 BuildRequires:	pkgconfig(udev)
+%ifarch %{valgrind_arches}
 BuildRequires:	valgrind-devel
+%endif
 BuildRequires:	which
 BuildRequires:	xfsprogs-devel
 BuildRequires:	xmlstarlet
@@ -2633,6 +2639,10 @@ exit 0
 %{_datadir}/snmp/mibs
 
 %changelog
+* Wed Sep 18 2024 laokz <zhangkai@iscas.ac.cn> - 2:18.2.2-4
+- let BuildRequires:valgrind-devel depend on system arch macro
+- fix riscv64 build
+
 * Wed Apr 10 2024 cenhuilin <cenhuilin@kylinos.cn> - 2:18.2.2-3
 - mon: fix mds metadata lost in one case