diff --git a/GCC14-1004-riscv-lib64.patch b/GCC14-1004-riscv-lib64.patch
new file mode 100644
index 0000000000000000000000000000000000000000..8a86015d485ab3ed0ac59730b2ed1aeee070168c
--- /dev/null
+++ b/GCC14-1004-riscv-lib64.patch
@@ -0,0 +1,66 @@
+From 8c8e61a37b253317a55031527a351f433a4192f7 Mon Sep 17 00:00:00 2001
+From: YunQiang Su <yunqiang@isrc.iscas.ac.cn>
+Date: Mon, 14 Oct 2024 10:09:46 +0800
+Subject: [PATCH 3/3] RISC-V: Install libstdc++/libcc1 etc to /lib64 instead of
+ lib
+
+The problem is that if we are configured with `--disable-multilib`,
+  gcc -print-multi-os-directory
+outputs
+  .
+Thus the dest to install libraries is set to
+  /usr/lib/.
+While other platforms (x86-64, arm64) it will be
+  /usr/lib/../lib64
+Let's sync riscv64 with them
+
+Another problem is that
+  gcc -print-file-name=libzstd.so.1
+will output
+  /usr/lib64/lp64d/../lib64/libzstd.so.1
+which is also need to patched.
+---
+ gcc/config.gcc               | 3 +++
+ gcc/config/riscv/linux.h     | 2 ++
+ gcc/config/riscv/t-openEuler | 2 ++
+ 3 files changed, 7 insertions(+)
+ create mode 100644 gcc/config/riscv/t-openEuler
+
+diff --git a/gcc/config.gcc b/gcc/config.gcc
+index 95c91ee02..531e7fa45 100644
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2490,6 +2490,9 @@ riscv*-*-linux*)
+ 	xyes) tmake_file="${tmake_file} riscv/t-linux-multilib" ;;
+ 	*) echo "Unknown value for enable_multilib"; exit 1
+ 	esac
++	case "x${target_vendor}" in
++	xopenEuler) tmake_file="${tmake_file} riscv/t-openEuler"
++	esac
+ 	tmake_file="${tmake_file} riscv/t-riscv riscv/t-linux"
+ 	tm_defines="${tm_defines} TARGET_DEFAULT_ASYNC_UNWIND_TABLES=1"
+ 	gnu_ld=yes
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index 3c3562271..2acbdc688 100644
+--- a/gcc/config/riscv/linux.h
++++ b/gcc/config/riscv/linux.h
+@@ -62,6 +62,8 @@ along with GCC; see the file COPYING3.  If not see
+     %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}}"
+ 
+ #define STARTFILE_PREFIX_SPEC 			\
++   "/lib" XLEN_SPEC "/ " 			\
++   "/usr/lib" XLEN_SPEC "/ " 			\
+    "/lib" XLEN_SPEC "/" ABI_SPEC "/ "		\
+    "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ "	\
+    "/lib/ "					\
+diff --git a/gcc/config/riscv/t-openEuler b/gcc/config/riscv/t-openEuler
+new file mode 100644
+index 000000000..26541dd08
+--- /dev/null
++++ b/gcc/config/riscv/t-openEuler
+@@ -0,0 +1,2 @@
++MULTILIB_OPTIONS = mabi=lp64d
++MULTILIB_DIRNAMES = ../lib64
+-- 
+2.43.0
+
diff --git a/GCC14-1005-libstdc-compat-Update-symbol-list-for-RISC-V-64.patch b/GCC14-1005-libstdc-compat-Update-symbol-list-for-RISC-V-64.patch
new file mode 100644
index 0000000000000000000000000000000000000000..5be830ef9ac99e0f92049f8efdc24e29d84cfca3
--- /dev/null
+++ b/GCC14-1005-libstdc-compat-Update-symbol-list-for-RISC-V-64.patch
@@ -0,0 +1,826 @@
+From aab55352512fe713b7eac5c41d2467e0601d02eb Mon Sep 17 00:00:00 2001
+From: Your Name <you@example.com>
+Date: Mon, 9 Dec 2024 15:16:01 +0800
+Subject: [PATCH 2/2] libstdc++-compat: Update symbol list for RISC-V 64
+
+---
+ libstdc++-v3/src/nonshared11/codecvt80.cc     |  2 +
+ .../src/nonshared11/cow-sstream-inst80.cc     |  4 ++
+ .../src/nonshared11/cxx11-ios_failure80.cc    | 12 ++++++
+ .../src/nonshared11/sstream-inst80.cc         |  4 ++
+ libstdc++-v3/src/nonshared17/cow-fs_dir.cc    | 12 +++++-
+ libstdc++-v3/src/nonshared17/cow-fs_ops.cc    | 10 +++++
+ libstdc++-v3/src/nonshared17/cow-fs_path.cc   | 18 +++++++++
+ .../src/nonshared17/cow-string-inst110.cc     |  8 ++++
+ .../src/nonshared17/floating_from_chars.cc    |  2 +
+ .../src/nonshared17/floating_from_chars110.cc |  2 +
+ .../src/nonshared17/floating_to_chars110.cc   |  2 +
+ libstdc++-v3/src/nonshared17/fs_dir.cc        | 16 +++++++-
+ libstdc++-v3/src/nonshared17/fs_ops80.cc      | 10 +++++
+ libstdc++-v3/src/nonshared17/fs_path80.cc     | 26 ++++++++++++
+ .../src/nonshared17/memory_resource.cc        | 10 +++++
+ .../src/nonshared17/string-inst110.cc         |  8 ++++
+ libstdc++-v3/src/nonshared20/tzdb110.cc       |  2 +
+ libstdc++-v3/src/nonshared20/tzdb80.cc        | 40 +++++++++++++++++++
+ libstdc++-v3/src/nonshared98/extfloat.S       |  5 ++-
+ 19 files changed, 190 insertions(+), 3 deletions(-)
+
+diff --git a/libstdc++-v3/src/nonshared11/codecvt80.cc b/libstdc++-v3/src/nonshared11/codecvt80.cc
+index c903548a8..fb42c0451 100644
+--- a/libstdc++-v3/src/nonshared11/codecvt80.cc
++++ b/libstdc++-v3/src/nonshared11/codecvt80.cc
+@@ -22,6 +22,7 @@
+ 
+ #define _GLIBCXX_NONSHARED_CXX11_80
+ #include "../c++11/codecvt.cc"
++#ifndef __riscv
+ asm (".hidden _ZTISt12codecvt_base");
+ asm (".hidden _ZTSSt12codecvt_base");
+ asm (".hidden _ZTISt23__codecvt_abstract_baseIDic11__mbstate_tE");
+@@ -36,3 +37,4 @@ asm (".hidden _ZTSSt23__codecvt_abstract_baseIDiDu11__mbstate_tE");
+ asm (".hidden _ZTSSt23__codecvt_abstract_baseIDsDu11__mbstate_tE");
+ asm (".hidden _ZTVSt23__codecvt_abstract_baseIDiDu11__mbstate_tE");
+ asm (".hidden _ZTVSt23__codecvt_abstract_baseIDsDu11__mbstate_tE");
++#endif
+diff --git a/libstdc++-v3/src/nonshared11/cow-sstream-inst80.cc b/libstdc++-v3/src/nonshared11/cow-sstream-inst80.cc
+index bc72608d3..889637988 100644
+--- a/libstdc++-v3/src/nonshared11/cow-sstream-inst80.cc
++++ b/libstdc++-v3/src/nonshared11/cow-sstream-inst80.cc
+@@ -47,7 +47,11 @@ _GLIBCXX_END_NAMESPACE_VERSION
+ 
+ asm (".hidden _ZNSt15basic_stringbufIcSt11char_traitsIcESaIcEED0Ev");
+ asm (".hidden _ZNSt15basic_stringbufIcSt11char_traitsIcESaIcEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt15basic_stringbufIcSt11char_traitsIcESaIcEED2Ev");
++#endif
+ asm (".hidden _ZNSt15basic_stringbufIwSt11char_traitsIwESaIwEED0Ev");
+ asm (".hidden _ZNSt15basic_stringbufIwSt11char_traitsIwESaIwEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt15basic_stringbufIwSt11char_traitsIwESaIwEED2Ev");
++#endif
+diff --git a/libstdc++-v3/src/nonshared11/cxx11-ios_failure80.cc b/libstdc++-v3/src/nonshared11/cxx11-ios_failure80.cc
+index 514cd21d4..c768a493d 100644
+--- a/libstdc++-v3/src/nonshared11/cxx11-ios_failure80.cc
++++ b/libstdc++-v3/src/nonshared11/cxx11-ios_failure80.cc
+@@ -24,9 +24,12 @@
+ asm (".hidden _ZNKSt19__iosfail_type_info11__do_upcastEPKN10__cxxabiv117__class_type_infoEPPv");
+ asm (".hidden _ZNSt13__ios_failureD0Ev");
+ asm (".hidden _ZNSt13__ios_failureD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt13__ios_failureD2Ev");
++#endif
+ asm (".hidden _ZNSt19__iosfail_type_infoD0Ev");
+ asm (".hidden _ZNSt19__iosfail_type_infoD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt19__iosfail_type_infoD2Ev");
+ asm (".hidden _ZTISt13__ios_failure");
+ asm (".hidden _ZTISt19__iosfail_type_info");
+@@ -36,15 +39,24 @@ asm (".hidden _ZTVSt13__ios_failure");
+ asm (".hidden _ZTVSt19__iosfail_type_info");
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11D2Ev");
+ asm (".hidden _ZTVNSt8ios_base7failureB5cxx11E");
++#endif
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11D1Ev");
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11D0Ev");
+ asm (".hidden _ZNKSt8ios_base7failureB5cxx114whatEv");
++#ifndef __riscv
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11C2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
++#endif
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11C1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
++#ifndef __riscv
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11C2ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt10error_code");
++#endif
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11C1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEERKSt10error_code");
++#ifndef __riscv
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11C2EPKcRKSt10error_code");
++#endif
+ asm (".hidden _ZNSt8ios_base7failureB5cxx11C1EPKcRKSt10error_code");
++#ifndef __riscv
+ asm (".hidden _ZTSNSt8ios_base7failureB5cxx11E");
+ asm (".hidden _ZTINSt8ios_base7failureB5cxx11E");
++#endif
+ asm (".hidden _ZSt19__throw_ios_failurePKc");
+diff --git a/libstdc++-v3/src/nonshared11/sstream-inst80.cc b/libstdc++-v3/src/nonshared11/sstream-inst80.cc
+index 574f86d59..8082817f2 100644
+--- a/libstdc++-v3/src/nonshared11/sstream-inst80.cc
++++ b/libstdc++-v3/src/nonshared11/sstream-inst80.cc
+@@ -49,7 +49,11 @@ _GLIBCXX_END_NAMESPACE_VERSION
+ 
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEED0Ev");
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEED2Ev");
++#endif
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIwSt11char_traitsIwESaIwEED0Ev");
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIwSt11char_traitsIwESaIwEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIwSt11char_traitsIwESaIwEED2Ev");
++#endif
+diff --git a/libstdc++-v3/src/nonshared17/cow-fs_dir.cc b/libstdc++-v3/src/nonshared17/cow-fs_dir.cc
+index 59538ebfa..9525952b0 100644
+--- a/libstdc++-v3/src/nonshared17/cow-fs_dir.cc
++++ b/libstdc++-v3/src/nonshared17/cow-fs_dir.cc
+@@ -21,18 +21,23 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/cow-fs_dir.cc"
++#ifndef __riscv
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE3getEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE6uniqueEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE9use_countEv");
++#endif
+ //asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EEcvbEv");
++#ifndef __riscv
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EE3getEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EE6uniqueEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EE9use_countEv");
++#endif
+ //asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EEcvbEv");
+ asm (".hidden _ZNSt10filesystem4_Dir7advanceEbRSt10error_code");
+ asm (".hidden _ZNSt10filesystem4_DirD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem4_DirD2Ev");
+ #ifdef __i386__
+ asm (".hidden _ZNSt10filesystem9_Dir_base7advanceEbRSt10error_code");
+@@ -61,11 +66,15 @@ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem4_DirESaIS1_ELN9__gn
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem4_DirESaIS1_ELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem4_DirESaIS1_ELN9__gnu_cxx12_Lock_policyE2EED0Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem4_DirESaIS1_ELN9__gnu_cxx12_Lock_policyE2EED1Ev");
++#endif
+ asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EE12emplace_backIIS1_EEERS1_DpOT_");
++#ifndef __riscv
+ asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EE12emplace_backIJS1_EEERS1_DpOT_");
++#endif
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EE16_M_push_back_auxIIRP11__dirstreamRKNS0_4pathEEEEvDpOT_");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EE16_M_push_back_auxIJRP11__dirstreamRKNS0_4pathEEEEvDpOT_");
+ asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EED2Ev");
+ asm (".hidden _ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE");
+@@ -85,7 +94,8 @@ asm (".hidden _ZNSsC2ISaIcEEEPKcRKS0_");
+ #endif
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem28recursive_directory_iterator10_Dir_stackESaIS2_ELN9__gnu_cxx12_Lock_policyE2EED2Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem4_DirESaIS1_ELN9__gnu_cxx12_Lock_policyE2EED2Ev");
+-#ifndef __i386__
++#endif
++#if !defined(__i386__) && !defined(__riscv)
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4_DirESaIS1_EE17_M_reallocate_mapEmb");
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE24_M_release_last_use_coldEv");
+ #endif
+diff --git a/libstdc++-v3/src/nonshared17/cow-fs_ops.cc b/libstdc++-v3/src/nonshared17/cow-fs_ops.cc
+index 775f18db5..100565f43 100644
+--- a/libstdc++-v3/src/nonshared17/cow-fs_ops.cc
++++ b/libstdc++-v3/src/nonshared17/cow-fs_ops.cc
+@@ -21,22 +21,30 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/cow-fs_ops.cc"
++#ifndef __riscv
+ asm (".hidden _ZNSt15_Sp_counted_ptrIDnLN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv");
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_destroyEv");
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_releaseEv");
++#endif
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EE16_M_push_back_auxIJRKS1_EEEvDpOT_");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EE16_M_push_back_auxIIRKS1_EEEvDpOT_");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EE12emplace_backIJS1_EEERS1_DpOT_");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EE12emplace_backIIS1_EEERS1_DpOT_");
+ asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EED2Ev");
++#endif
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem4path5_List5_ImplENS2_13_Impl_deleterEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem4path5_List5_ImplENS2_13_Impl_deleterEED2Ev");
++#endif
+ asm (".hidden _ZSt14__copy_move_a1ILb1EPNSt10filesystem4pathES1_EN9__gnu_cxx11__enable_ifIXsrSt23__is_random_access_iterIT0_NSt15iterator_traitsIS6_E17iterator_categoryEE7__valueESt15_Deque_iteratorIT1_RSC_PSC_EE6__typeES6_S6_SF_");
+ asm (".hidden _ZSt23__copy_move_backward_a1ILb1EPNSt10filesystem4pathES1_EN9__gnu_cxx11__enable_ifIXsrSt23__is_random_access_iterIT0_NSt15iterator_traitsIS6_E17iterator_categoryEE7__valueESt15_Deque_iteratorIT1_RSC_PSC_EE6__typeES6_S6_SF_");
+ //asm (".hidden _ZSt8_DestroyISt15_Deque_iteratorINSt10filesystem4pathERS2_PS2_EEvT_S6_");
+ asm (".hidden _ZNSsC1ISaIcEEEPKcRKS0_");
++#ifndef __riscv
+ asm (".hidden _ZNSsC2ISaIcEEEPKcRKS0_");
++#endif
+ #ifndef __i386__
+ //asm (".hidden _ZNSs9_M_mutateEmmm");
+ asm (".hidden _ZNSt11_Deque_baseINSt10filesystem4pathESaIS1_EE17_M_initialize_mapEm");
+@@ -47,8 +55,10 @@ asm (".hidden _ZNSt5dequeINSt10filesystem4pathESaIS1_EE24_M_new_elements_at_fron
+ //asm (".hidden _ZNSs6resizeEmc");
+ //asm (".hidden _ZNSt10filesystem4pathD1Ev");
+ //asm (".hidden _ZNSt10filesystem4pathD2Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE24_M_release_last_use_coldEv");
+ #endif
++#endif
+ #if defined(__x86_64__)
+ //asm (".hidden _ZSt13move_backwardISt15_Deque_iteratorINSt10filesystem4pathERS2_PS2_ES5_ET0_T_S7_S6_");
+ //asm (".hidden _ZSt4moveISt15_Deque_iteratorINSt10filesystem4pathERS2_PS2_ES5_ET0_T_S7_S6_");
+diff --git a/libstdc++-v3/src/nonshared17/cow-fs_path.cc b/libstdc++-v3/src/nonshared17/cow-fs_path.cc
+index b22ac70da..630646d8e 100644
+--- a/libstdc++-v3/src/nonshared17/cow-fs_path.cc
++++ b/libstdc++-v3/src/nonshared17/cow-fs_path.cc
+@@ -21,18 +21,23 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/cow-fs_path.cc"
++#ifndef __riscv
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem16filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem16filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE3getEv");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem16filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE6uniqueEv");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem16filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE9use_countEv");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem16filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EEcvbEv");
++#endif
+ asm (".hidden _ZNKSt23__codecvt_abstract_baseIwc11__mbstate_tE2inERS0_PKcS4_RS4_PwS6_RS6_");
+ asm (".hidden _ZNKSt23__codecvt_abstract_baseIwc11__mbstate_tE3outERS0_PKwS4_RS4_PcS6_RS6_");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem4path19preferred_separatorE");
++#endif
+ asm (".hidden _ZNSt10filesystem4path5_List5clearEv");
+ asm (".hidden _ZNSt10filesystem4path5_List5_Impl13_M_erase_fromEPKNS0_5_CmptE");
+ asm (".hidden _ZNSt10filesystem4path5_List7reserveEib");
+ asm (".hidden _ZNSt10filesystem4path5_ListaSERKS1_");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem4path5_ListC2ERKS1_");
+ asm (".hidden _ZNSt10filesystem4path5_ListC2Ev");
+ asm (".hidden _ZNSt12__shared_ptrIKNSt10filesystem16filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE4swapERS6_");
+@@ -61,14 +66,19 @@ asm (".hidden _ZTSSt19_Sp_make_shared_tag");
+ asm (".hidden _ZTSSt23_Sp_counted_ptr_inplaceINSt10filesystem16filesystem_error5_ImplESaIS2_ELN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTVSt23_Sp_counted_ptr_inplaceINSt10filesystem16filesystem_error5_ImplESaIS2_ELN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag");
++#endif
+ asm (".hidden _ZNSt10filesystem16filesystem_error5_Impl9make_whatESt17basic_string_viewIcSt11char_traitsIcEEPKNS_4pathES8_");
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem4path5_List5_ImplENS2_13_Impl_deleterEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem4path5_List5_ImplENS2_13_Impl_deleterEED2Ev");
++#endif
+ asm (".hidden _ZNSt12system_errorC1ESt10error_codeRKSs");
++#ifndef __riscv
+ asm (".hidden _ZNSt12system_errorC2ESt10error_codeRKSs");
+ asm (".hidden _ZNSt15__allocated_ptrISaISt23_Sp_counted_ptr_inplaceINSt10filesystem16filesystem_error5_ImplESaIS3_ELN9__gnu_cxx12_Lock_policyE2EEEED1Ev");
+ asm (".hidden _ZNSt15__allocated_ptrISaISt23_Sp_counted_ptr_inplaceINSt10filesystem16filesystem_error5_ImplESaIS3_ELN9__gnu_cxx12_Lock_policyE2EEEED2Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem16filesystem_error5_ImplESaIS2_ELN9__gnu_cxx12_Lock_policyE2EED2Ev");
++#endif
+ asm (".hidden _ZNSt10filesystem4path10_S_convertIwEEDaPKT_S4_");
+ asm (".hidden _ZNSt10filesystem8__detail24__throw_conversion_errorEv");
+ //asm (".hidden _ZTIZNSt10filesystem4path10_S_convertIwEEDaPKT_S4_E5_UCvt");
+@@ -80,7 +90,9 @@ asm (".hidden _ZNSt10filesystem8__detail24__throw_conversion_errorEv");
+ asm (".hidden _ZNKSt10filesystem4path5_List5_Impl4copyEv");
+ //asm (".hidden _ZNSs6appendERKSs");
+ #ifndef __i386__
++#ifndef __riscv
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE24_M_release_last_use_coldEv");
++#endif
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEE6resizeEmw");
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEE7reserveEm");
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEE9_M_mutateEmmm");
+@@ -89,8 +101,10 @@ asm (".hidden _ZNSs6resizeEmc");
+ asm (".hidden _ZNSs7reserveEm");
+ asm (".hidden _ZNSs9_M_mutateEmmm");
+ asm (".hidden _ZNSsC1ERKSsmm");
++#ifndef __riscv
+ asm (".hidden _ZNSsC2ERKSsmm");
+ asm (".hidden _ZNSt10filesystem4pathD2Ev");
++#endif
+ asm (".hidden _ZSt16__do_str_codecvtISbIwSt11char_traitsIwESaIwEEcSt7codecvtIwc11__mbstate_tES5_MS6_KFNSt12codecvt_base6resultERS5_PKcSB_RSB_PwSD_RSD_EEbPKT0_SJ_RT_RKT1_RT2_RmT3_");
+ //asm (".hidden _ZSt16__do_str_codecvtISswSt7codecvtIwc11__mbstate_tES1_MS2_KFNSt12codecvt_base6resultERS1_PKwS7_RS7_PcS9_RS9_EEbPKT0_SF_RT_RKT1_RT2_RmT3_");
+ #endif
+@@ -116,9 +130,12 @@ asm (".hidden _ZSt16__do_str_codecvtISbIwSt11char_traitsIwESaIwEEcSt7codecvtIwc1
+ #endif
+ asm (".hidden _ZNSt10filesystem4path8_CodecvtIwED0Ev");
+ asm (".hidden _ZNSt10filesystem4path8_CodecvtIwED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem4path8_CodecvtIwED2Ev");
++#endif
+ asm (".hidden _ZNSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EED0Ev");
+ asm (".hidden _ZNSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EED2Ev");
+ asm (".hidden _ZTINSt10filesystem4path8_CodecvtIwEE");
+ asm (".hidden _ZTISt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EE");
+@@ -126,6 +143,7 @@ asm (".hidden _ZTSNSt10filesystem4path8_CodecvtIwEE");
+ asm (".hidden _ZTSSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EE");
+ asm (".hidden _ZTVNSt10filesystem4path8_CodecvtIwEE");
+ asm (".hidden _ZTVSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EE");
++#endif
+ //asm (".hidden _ZNSt12_Destroy_auxILb0EE9__destroyIPNSt10filesystem4path5_CmptEEEvT_S6_");
+ //asm (".hidden _ZNSt10filesystem4path5_CmptD1Ev");
+ //asm (".hidden _ZNSt10filesystem4path5_CmptD2Ev");
+diff --git a/libstdc++-v3/src/nonshared17/cow-string-inst110.cc b/libstdc++-v3/src/nonshared17/cow-string-inst110.cc
+index 26bb5d6ef..f24d16381 100644
+--- a/libstdc++-v3/src/nonshared17/cow-string-inst110.cc
++++ b/libstdc++-v3/src/nonshared17/cow-string-inst110.cc
+@@ -21,16 +21,24 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/cow-string-inst.cc"
++#ifndef __riscv
+ asm (".hidden _ZNSsC2ENSs12__sv_wrapperERKSaIcE");
++#endif
+ asm (".hidden _ZNSsC1ENSs12__sv_wrapperERKSaIcE");
++#ifndef __riscv
+ asm (".hidden _ZNSs12__sv_wrapperC2ESt17basic_string_viewIcSt11char_traitsIcEE");
++#endif
+ asm (".hidden _ZNSs12__sv_wrapperC1ESt17basic_string_viewIcSt11char_traitsIcEE");
+ asm (".hidden _ZNSs17_S_to_string_viewESt17basic_string_viewIcSt11char_traitsIcEE");
+ asm (".hidden _ZNKSscvSt17basic_string_viewIcSt11char_traitsIcEEEv");
+ asm (".hidden _ZNSs4dataEv");
++#ifndef __riscv
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEEC2ENS2_12__sv_wrapperERKS1_");
++#endif
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEEC1ENS2_12__sv_wrapperERKS1_");
++#ifndef __riscv
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEE12__sv_wrapperC2ESt17basic_string_viewIwS0_E");
++#endif
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEE12__sv_wrapperC1ESt17basic_string_viewIwS0_E");
+ asm (".hidden _ZNSbIwSt11char_traitsIwESaIwEE17_S_to_string_viewESt17basic_string_viewIwS0_E");
+ asm (".hidden _ZNKSbIwSt11char_traitsIwESaIwEEcvSt17basic_string_viewIwS0_EEv");
+diff --git a/libstdc++-v3/src/nonshared17/floating_from_chars.cc b/libstdc++-v3/src/nonshared17/floating_from_chars.cc
+index b82540753..4ef0871a4 100644
+--- a/libstdc++-v3/src/nonshared17/floating_from_chars.cc
++++ b/libstdc++-v3/src/nonshared17/floating_from_chars.cc
+@@ -45,5 +45,7 @@ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcENSt3pmr21polymorphi
+ #else
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcENSt3pmr21polymorphic_allocatorIcEEE15_M_replace_coldEPcmPKcmm");
+ #endif
++#ifndef __riscv
+ asm (".hidden _ZNSt8__detail31__from_chars_alnum_to_val_tableILb0EE5valueE");
++#endif
+ asm (".hidden _ZSt10from_charsIiLi0EESt17from_chars_resultPKcS2_RT_i");
+diff --git a/libstdc++-v3/src/nonshared17/floating_from_chars110.cc b/libstdc++-v3/src/nonshared17/floating_from_chars110.cc
+index c687e0e3e..3c7cd9610 100644
+--- a/libstdc++-v3/src/nonshared17/floating_from_chars110.cc
++++ b/libstdc++-v3/src/nonshared17/floating_from_chars110.cc
+@@ -32,5 +32,7 @@ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcENSt3pmr21polymorphi
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcENSt3pmr21polymorphic_allocatorIcEEE15_M_replace_coldEPcmPKcmm");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcENSt3pmr21polymorphic_allocatorIcEEE9_M_mutateEmmPKcm");
+ #endif
++#ifndef __riscv
+ asm (".hidden _ZNSt8__detail31__from_chars_alnum_to_val_tableILb0EE5valueE");
++#endif
+ asm (".hidden _ZSt10from_charsIiLi0EESt17from_chars_resultPKcS2_RT_i");
+diff --git a/libstdc++-v3/src/nonshared17/floating_to_chars110.cc b/libstdc++-v3/src/nonshared17/floating_to_chars110.cc
+index ff2c57c5c..de9465513 100644
+--- a/libstdc++-v3/src/nonshared17/floating_to_chars110.cc
++++ b/libstdc++-v3/src/nonshared17/floating_to_chars110.cc
+@@ -24,7 +24,9 @@
+ #include "../c++17/floating_to_chars.cc"
+ //asm (".hidden _ZSt12__to_chars_iIoENSt9enable_ifIXsrSt5__or_IJS1_IJSt7is_sameINSt9remove_cvIT_E4typeEaES2_IS6_sES2_IS6_iES2_IS6_lES2_IS6_xES2_IS6_nEEES1_IJS2_IS6_hES2_IS6_tES2_IS6_jES2_IS6_mES2_IS6_yES2_IS6_oEEES2_IcS6_EEE5valueESt15to_chars_resultE4typeEPcSQ_S4_i");
+ //asm (".hidden _ZSt12__to_chars_iIoENSt9enable_ifIXsrSt5__or_IIS1_IISt7is_sameINSt9remove_cvIT_E4typeEaES2_IS6_sES2_IS6_iES2_IS6_lES2_IS6_xES2_IS6_nEEES1_IIS2_IS6_hES2_IS6_tES2_IS6_jES2_IS6_mES2_IS6_yES2_IS6_oEEES2_IcS6_EEE5valueESt15to_chars_resultE4typeEPcSQ_S4_i");
++#ifndef __riscv
+ asm (".hidden _ZNSt8__detail18__to_chars_10_implIjEEvPcjT_");
++#endif
+ #if !defined(__i386__)
+ asm (".hidden _ZSt12__to_chars_iIoESt15to_chars_resultPcS1_T_i");
+ #endif
+diff --git a/libstdc++-v3/src/nonshared17/fs_dir.cc b/libstdc++-v3/src/nonshared17/fs_dir.cc
+index e73ae6bee..655b04794 100644
+--- a/libstdc++-v3/src/nonshared17/fs_dir.cc
++++ b/libstdc++-v3/src/nonshared17/fs_dir.cc
+@@ -21,6 +21,7 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/fs_dir.cc"
++#ifndef __riscv
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE3getEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE6uniqueEv");
+@@ -30,16 +31,20 @@ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_L
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EE3getEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EE6uniqueEv");
+ asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EE9use_countEv");
++#endif
+ //asm (".hidden _ZNKSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EEcvbEv");
+ asm (".hidden _ZNSt10filesystem7__cxx114_Dir7advanceEbRSt10error_code");
+ asm (".hidden _ZNSt10filesystem7__cxx114_DirD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114_DirD2Ev");
++#endif
+ #ifdef __x86_64__
+ asm (".hidden _ZNSt10filesystem9_Dir_base7advanceEbRSt10error_code");
+ //asm (".hidden _ZNSt10filesystem9_Dir_baseC1EPKcbRSt10error_code");
+ //asm (".hidden _ZNSt10filesystem9_Dir_baseC2EPKcbRSt10error_code");
+ #endif
+ asm (".hidden _ZNSt10filesystem7__cxx114pathC1INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES1_EERKT_NS1_6formatE");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114pathC2INSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEES1_EERKT_NS1_6formatE");
+ asm (".hidden _ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE4swapERS6_");
+ asm (".hidden _ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EE5resetEv");
+@@ -65,14 +70,20 @@ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx114_DirESaIS2_
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx114_DirESaIS2_ELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx114_DirESaIS2_ELN9__gnu_cxx12_Lock_policyE2EED0Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx114_DirESaIS2_ELN9__gnu_cxx12_Lock_policyE2EED1Ev");
++#endif
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EE12emplace_backIIS2_EEERS2_DpOT_");
++#ifndef __riscv
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EE12emplace_backIJS2_EEERS2_DpOT_");
++#endif
+ //asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EE16_M_push_back_auxIIRP11__dirstreamRKNS1_4pathEEEEvDpOT_");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EE16_M_push_back_auxIJRP11__dirstreamRKNS1_4pathEEEEvDpOT_");
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EED2Ev");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1IS3_EEPKcRKS3_");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_");
++#ifndef __riscv
+ asm (".hidden _ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTISt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackESaIS3_ELN9__gnu_cxx12_Lock_policyE2EE");
+@@ -87,12 +98,15 @@ asm (".hidden _ZTVSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx114_DirESaIS2
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackESaIS3_ELN9__gnu_cxx12_Lock_policyE2EED2Ev");
+ asm (".hidden _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx114_DirESaIS2_ELN9__gnu_cxx12_Lock_policyE2EED2Ev");
+-#ifndef __i386__
++#endif
++#if !defined__i386__ && !defined __riscv
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE24_M_release_last_use_coldEv");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114_DirESaIS2_EE17_M_reallocate_mapEmb");
+ #endif
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED2Ev");
++#endif
+ #ifdef __i386__
+ asm (".hidden _ZNSt10filesystem9_Dir_base7advanceEbRSt10error_code");
+ #endif
+diff --git a/libstdc++-v3/src/nonshared17/fs_ops80.cc b/libstdc++-v3/src/nonshared17/fs_ops80.cc
+index eed139f91..9035d3f77 100644
+--- a/libstdc++-v3/src/nonshared17/fs_ops80.cc
++++ b/libstdc++-v3/src/nonshared17/fs_ops80.cc
+@@ -23,27 +23,37 @@
+ #include "../c++17/fs_ops.cc"
+ asm (".hidden _ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEED0Ev");
+ asm (".hidden _ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEED2Ev");
++#endif
+ asm (".hidden _ZNSt10filesystem12do_copy_fileEPKcS1_NS_26copy_options_existing_fileEP4statS4_RSt10error_code");
++#ifndef __riscv
+ asm (".hidden _ZNSt15_Sp_counted_ptrIDnLN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv");
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_destroyEv");
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_releaseEv");
++#endif
+ //asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114pathESaIS2_EE16_M_push_back_auxIJRKS2_EEEvDpOT_");
+ //asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114pathESaIS2_EE16_M_push_back_auxIIRKS2_EEEvDpOT_");
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114pathESaIS2_EED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114pathESaIS2_EED2Ev");
+ asm (".hidden _ZTIN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEEE");
+ asm (".hidden _ZTSN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEEE");
+ asm (".hidden _ZTVN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEEE");
++#endif
+ asm (".hidden _ZNKSt10filesystem7__cxx114path8filenameEv");
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED2Ev");
++#endif
+ asm (".hidden _ZSt14__copy_move_a1ILb1EPNSt10filesystem7__cxx114pathES2_EN9__gnu_cxx11__enable_ifIXsrSt23__is_random_access_iterIT0_NSt15iterator_traitsIS7_E17iterator_categoryEE7__valueESt15_Deque_iteratorIT1_RSD_PSD_EE6__typeES7_S7_SG_");
+ asm (".hidden _ZSt23__copy_move_backward_a1ILb1EPNSt10filesystem7__cxx114pathES2_EN9__gnu_cxx11__enable_ifIXsrSt23__is_random_access_iterIT0_NSt15iterator_traitsIS7_E17iterator_categoryEE7__valueESt15_Deque_iteratorIT1_RSD_PSD_EE6__typeES7_S7_SG_");
+ //asm (".hidden _ZSt8_DestroyISt15_Deque_iteratorINSt10filesystem7__cxx114pathERS3_PS3_EEvT_S7_");
+ #ifndef __i386__
+ asm (".hidden _ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEEC1EiSt13_Ios_Openmodem");
++#ifndef __riscv
+ asm (".hidden _ZN9__gnu_cxx13stdio_filebufIcSt11char_traitsIcEEC2EiSt13_Ios_Openmodem");
++#endif
+ asm (".hidden _ZNSt10filesystem8do_spaceEPKcRmS2_S2_RSt10error_code");
+ asm (".hidden _ZNSt11_Deque_baseINSt10filesystem7__cxx114pathESaIS2_EE17_M_initialize_mapEm");
+ asm (".hidden _ZNSt5dequeINSt10filesystem7__cxx114pathESaIS2_EE13_M_insert_auxINS2_8iteratorEEEvSt15_Deque_iteratorIS2_RS2_PS2_ET_SB_m");
+diff --git a/libstdc++-v3/src/nonshared17/fs_path80.cc b/libstdc++-v3/src/nonshared17/fs_path80.cc
+index 0100106a3..16576bbd3 100644
+--- a/libstdc++-v3/src/nonshared17/fs_path80.cc
++++ b/libstdc++-v3/src/nonshared17/fs_path80.cc
+@@ -21,18 +21,23 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/fs_path.cc"
++#ifndef __riscv
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem7__cxx1116filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem7__cxx1116filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE3getEv");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem7__cxx1116filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE6uniqueEv");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem7__cxx1116filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE9use_countEv");
+ asm (".hidden _ZNKSt12__shared_ptrIKNSt10filesystem7__cxx1116filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EEcvbEv");
++#endif
+ asm (".hidden _ZNKSt23__codecvt_abstract_baseIwc11__mbstate_tE2inERS0_PKcS4_RS4_PwS6_RS6_");
+ asm (".hidden _ZNKSt23__codecvt_abstract_baseIwc11__mbstate_tE3outERS0_PKwS4_RS4_PcS6_RS6_");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114path19preferred_separatorE");
++#endif
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_List5clearEv");
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_List5_Impl13_M_erase_fromEPKNS1_5_CmptE");
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_List7reserveEib");
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_ListaSERKS2_");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_ListC2ERKS2_");
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_ListC2Ev");
+ asm (".hidden _ZNSt12__shared_ptrIKNSt10filesystem7__cxx1116filesystem_error5_ImplELN9__gnu_cxx12_Lock_policyE2EE4swapERS7_");
+@@ -62,13 +67,18 @@ asm (".hidden _ZTSSt19_Sp_make_shared_tag");
+ asm (".hidden _ZTSSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx1116filesystem_error5_ImplESaIS3_ELN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTVSt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx1116filesystem_error5_ImplESaIS3_ELN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag");
++#endif
+ asm (".hidden _ZNSt10filesystem7__cxx1116filesystem_error5_Impl9make_whatESt17basic_string_viewIcSt11char_traitsIcEEPKNS0_4pathES9_");
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_CmptD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_CmptD2Ev");
++#endif
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED2Ev");
+ asm (".hidden _ZNSt15__allocated_ptrISaISt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx1116filesystem_error5_ImplESaIS4_ELN9__gnu_cxx12_Lock_policyE2EEEED1Ev");
+ asm (".hidden _ZNSt15__allocated_ptrISaISt23_Sp_counted_ptr_inplaceINSt10filesystem7__cxx1116filesystem_error5_ImplESaIS4_ELN9__gnu_cxx12_Lock_policyE2EEEED2Ev");
++#endif
+ #if !defined (__aarch64__) && !defined (__x86_64__)
+ #ifndef __i386__
+ //asm (".hidden _ZNSt10filesystem7__cxx114pathaSISt17basic_string_viewIcSt11char_traitsIcEEEERNSt9enable_ifIXsrSt6__and_IISt6__not_ISt7is_sameINSt9remove_cvIT_E4typeES1_EES9_ISt7is_voidINSt14remove_pointerISC_E4typeEEENS0_8__detail20__constructible_fromISC_vEEEE5valueES1_E4typeERKSC_");
+@@ -91,15 +101,21 @@ asm (".hidden _ZNKSt10filesystem7__cxx114path5_List5_Impl4copyEv");
+ asm (".hidden _ZNSt10filesystem7__cxx114path7_Parser4nextEv");
+ asm (".hidden _ZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_"); // bad ppc64le
+ #endif
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114path8_CodecvtIwED2Ev");
++#endif
+ asm (".hidden _ZNSt10filesystem7__cxx114path8_CodecvtIwED1Ev");
+ asm (".hidden _ZNSt10filesystem7__cxx114path8_CodecvtIwED0Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt12system_errorC2ESt10error_codeRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
++#endif
+ asm (".hidden _ZNSt12system_errorC1ESt10error_codeRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
+ asm (".hidden _ZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_");
++#ifndef __riscv
+ asm (".hidden _ZTVNSt10filesystem7__cxx114path8_CodecvtIwEE");
+ asm (".hidden _ZTSNSt10filesystem7__cxx114path8_CodecvtIwEE");
+ asm (".hidden _ZTINSt10filesystem7__cxx114path8_CodecvtIwEE");
++#endif
+ asm (".hidden _ZNSt10filesystem7__cxx118__detail24__throw_conversion_errorEv");
+ //asm (".hidden _ZTIZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_E5_UCvt");
+ //asm (".hidden _ZTSZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_E5_UCvt");
+@@ -108,7 +124,9 @@ asm (".hidden _ZNSt10filesystem7__cxx118__detail24__throw_conversion_errorEv");
+ //asm (".hidden _ZZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_EN5_UCvtD1Ev");
+ //asm (".hidden _ZZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_EN5_UCvtD2Ev");
+ asm (".hidden _ZNSt12system_errorC1ESt10error_codeRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
++#ifndef __riscv
+ asm (".hidden _ZNSt12system_errorC2ESt10error_codeRKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE");
++#endif
+ //asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_assignERKS4_");
+ asm (".hidden _ZNSt10filesystem7__cxx114path5_List5beginEv");
+ #ifndef __i386__
+@@ -118,7 +136,9 @@ asm (".hidden _ZNSt10filesystem7__cxx114path5_List5beginEv");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6resizeEmc");
+ //asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE7reserveEm");
+ //asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_mutateEmmPKcm");
++#ifndef __riscv
+ //asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE24_M_release_last_use_coldEv");
++#endif
+ //asm (".hidden _ZNSt12_Destroy_auxILb0EE9__destroyIPNSt10filesystem7__cxx114path5_CmptEEEvT_S7_");
+ asm (".hidden _ZNKSt10filesystem7__cxx114path5_List5_Impl4copyEv");
+ #endif
+@@ -142,9 +162,12 @@ asm (".hidden _ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEE6resizeEjw");
+ #endif
+ asm (".hidden _ZNSt10filesystem7__cxx114path8_CodecvtIwED0Ev");
+ asm (".hidden _ZNSt10filesystem7__cxx114path8_CodecvtIwED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt10filesystem7__cxx114path8_CodecvtIwED2Ev");
++#endif
+ //asm (".hidden _ZNSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EED0Ev");
+ //asm (".hidden _ZNSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EED1Ev");
++#ifndef __riscv
+ //asm (".hidden _ZNSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EED2Ev");
+ asm (".hidden _ZTINSt10filesystem7__cxx114path8_CodecvtIwEE");
+ //asm (".hidden _ZTISt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EE");
+@@ -152,6 +175,9 @@ asm (".hidden _ZTSNSt10filesystem7__cxx114path8_CodecvtIwEE");
+ //asm (".hidden _ZTSSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EE");
+ asm (".hidden _ZTVNSt10filesystem7__cxx114path8_CodecvtIwEE");
+ //asm (".hidden _ZTVSt12codecvt_utf8IwLm1114111ELSt12codecvt_mode0EE");
++#endif
+ asm (".hidden _ZNSt10filesystem7__cxx114path10_S_convertIwEEDaPKT_S5_");
++#ifndef __riscv
+ asm (".hidden _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag");
+ asm (".hidden _ZNSt10filesystem7__cxx114path19preferred_separatorE");
++#endif
+diff --git a/libstdc++-v3/src/nonshared17/memory_resource.cc b/libstdc++-v3/src/nonshared17/memory_resource.cc
+index b94792bd5..36bfac568 100644
+--- a/libstdc++-v3/src/nonshared17/memory_resource.cc
++++ b/libstdc++-v3/src/nonshared17/memory_resource.cc
+@@ -26,20 +26,28 @@ asm (".hidden _ZNKSt3pmr28unsynchronized_pool_resource11do_is_equalERKNS_15memor
+ asm (".hidden _ZNSt3pmr15__pool_resource14_M_alloc_poolsEv");
+ asm (".hidden _ZNSt3pmr15__pool_resource7releaseEv");
+ asm (".hidden _ZNSt3pmr15__pool_resourceC1ERKNS_12pool_optionsEPNS_15memory_resourceE");
++#ifndef __riscv
+ asm (".hidden _ZNSt3pmr15__pool_resourceC2ERKNS_12pool_optionsEPNS_15memory_resourceE");
++#endif
+ asm (".hidden _ZNSt3pmr15__pool_resourceD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt3pmr15__pool_resourceD2Ev");
++#endif
+ asm (".hidden _ZNSt3pmr26synchronized_pool_resource15_M_alloc_tpoolsERSt10lock_guardISt12shared_mutexE");
+ asm (".hidden _ZNSt3pmr26synchronized_pool_resource22_M_alloc_shared_tpoolsERSt10lock_guardISt12shared_mutexE");
+ asm (".hidden _ZNSt3pmr26synchronized_pool_resource24_M_thread_specific_poolsEv");
+ asm (".hidden _ZNSt3pmr26synchronized_pool_resource7_TPoolsD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt3pmr26synchronized_pool_resource7_TPoolsD2Ev");
++#endif
+ asm (".hidden _ZNSt3pmr26synchronized_pool_resourceD0Ev");
+ asm (".hidden _ZNSt3pmr28unsynchronized_pool_resourceD0Ev");
++#ifndef __riscv
+ asm (".hidden _ZTSNSt3pmr26synchronized_pool_resourceE");
+ asm (".hidden _ZTSNSt3pmr28unsynchronized_pool_resourceE");
+ asm (".hidden _ZTVNSt3pmr26synchronized_pool_resourceE");
+ asm (".hidden _ZTVNSt3pmr28unsynchronized_pool_resourceE");
++#endif
+ asm (".hidden _ZNKSt3pmr25monotonic_buffer_resource11do_is_equalERKNS_15memory_resourceE");
+ asm (".hidden _ZNSt3pmr15__pool_resource5_Pool12try_allocateEv");
+ asm (".hidden _ZNSt3pmr15__pool_resource5_Pool9replenishEPNS_15memory_resourceERKNS_12pool_optionsE");
+@@ -71,5 +79,7 @@ asm (".hidden _ZNSt6vectorINSt3pmr15__pool_resource9_BigBlockENS0_21polymorphic_
+ asm (".hidden _ZNSt6vectorINSt3pmr15__pool_resource9_BigBlockENS0_21polymorphic_allocatorIS2_EEE17_M_realloc_appendIJRjS7_EEEvDpOT_");
+ #else
+ asm (".hidden _ZNSt6vectorINSt3pmr15__pool_resource9_BigBlockENS0_21polymorphic_allocatorIS2_EEE17_M_realloc_appendIIRmS7_EEEvDpOT_");
++#ifndef __riscv
+ asm (".hidden _ZNSt6vectorINSt3pmr15__pool_resource9_BigBlockENS0_21polymorphic_allocatorIS2_EEE17_M_realloc_appendIJRmS7_EEEvDpOT_");
+ #endif
++#endif
+diff --git a/libstdc++-v3/src/nonshared17/string-inst110.cc b/libstdc++-v3/src/nonshared17/string-inst110.cc
+index a317ca76e..a3c6d1900 100644
+--- a/libstdc++-v3/src/nonshared17/string-inst110.cc
++++ b/libstdc++-v3/src/nonshared17/string-inst110.cc
+@@ -21,16 +21,24 @@
+ // <http://www.gnu.org/licenses/>.
+ 
+ #include "../c++17/string-inst.cc"
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2ENS4_12__sv_wrapperERKS3_");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1ENS4_12__sv_wrapperERKS3_");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12__sv_wrapperC2ESt17basic_string_viewIcS2_E");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12__sv_wrapperC1ESt17basic_string_viewIcS2_E");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE17_S_to_string_viewESt17basic_string_viewIcS2_E");
+ asm (".hidden _ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEcvSt17basic_string_viewIcS2_EEv");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4dataEv");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEEC2ENS4_12__sv_wrapperERKS3_");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEEC1ENS4_12__sv_wrapperERKS3_");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEE12__sv_wrapperC2ESt17basic_string_viewIwS2_E");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEE12__sv_wrapperC1ESt17basic_string_viewIwS2_E");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEE17_S_to_string_viewESt17basic_string_viewIwS2_E");
+ asm (".hidden _ZNKSt7__cxx1112basic_stringIwSt11char_traitsIwESaIwEEcvSt17basic_string_viewIwS2_EEv");
+diff --git a/libstdc++-v3/src/nonshared20/tzdb110.cc b/libstdc++-v3/src/nonshared20/tzdb110.cc
+index 4be193df7..e4b54a8e9 100644
+--- a/libstdc++-v3/src/nonshared20/tzdb110.cc
++++ b/libstdc++-v3/src/nonshared20/tzdb110.cc
+@@ -24,4 +24,6 @@
+ #include "tzdb80.cc"
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEED0Ev");
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1115basic_stringbufIcSt11char_traitsIcESaIcEED2Ev");
++#endif
+diff --git a/libstdc++-v3/src/nonshared20/tzdb80.cc b/libstdc++-v3/src/nonshared20/tzdb80.cc
+index dc123a2ae..1e88dba3b 100644
+--- a/libstdc++-v3/src/nonshared20/tzdb80.cc
++++ b/libstdc++-v3/src/nonshared20/tzdb80.cc
+@@ -23,33 +23,51 @@
+ #include "../c++20/tzdb.cc"
+ asm (".hidden _ZNKSt6chrono9time_zone4nameEv");
+ asm (".hidden _ZNKSt6chrono14time_zone_link4nameEv");
++#ifndef __riscv
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EED2Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EED1Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EED0Ev");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EE10_M_destroyEv");
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EE14_M_get_deleterERKSt9type_info");
++#endif
+ asm (".hidden _ZNKSt6chrono14year_month_day19_M_days_since_epochEv");
+ asm (".hidden _ZNSt6chronossERKNS_14time_zone_linkES2_");
++#ifndef __riscv
+ asm (".hidden _ZNSt6chrono9time_zoneC2ESt10unique_ptrINS0_5_ImplESt14default_deleteIS2_EE");
++#endif
+ asm (".hidden _ZNSt6chrono9time_zoneC1ESt10unique_ptrINS0_5_ImplESt14default_deleteIS2_EE");
++#ifndef __riscv
+ asm (".hidden _ZNSt6chrono9tzdb_list5_Node13_S_head_cacheE");
+ asm (".hidden _ZNSt6atomicISt10shared_ptrINSt6chrono9tzdb_list5_NodeEEED2Ev");
++#endif
+ asm (".hidden _ZNSt6atomicISt10shared_ptrINSt6chrono9tzdb_list5_NodeEEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt6chrono9tzdb_list5_Node13_S_head_ownerE");
++#endif
+ asm (".hidden _ZNSt6chrono9tzdb_list5_Node15_S_replace_headESt10shared_ptrIS1_ES3_");
+ //asm (".hidden _ZNSt6vectorISt4pairINSt6chrono8sys_infoESt17basic_string_viewIcSt11char_traitsIcEEESaIS7_EE17_M_realloc_insertIJRS2_RS6_EEEvN9__gnu_cxx17__normal_iteratorIPS7_S9_EEDpOT_");
+ //asm (".hidden _ZNSt6vectorISt4pairINSt6chrono8sys_infoESt17basic_string_viewIcSt11char_traitsIcEEESaIS7_EE17_M_realloc_insertIIRS2_RS6_EEEvN9__gnu_cxx17__normal_iteratorIPS7_S9_EEDpOT_");
++#ifndef __riscv
+ asm (".hidden _ZNSt6chrono9time_zoneD2Ev");
++#endif
+ asm (".hidden _ZNSt6chrono9time_zoneD1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EE10_M_disposeEv");
+ asm (".hidden _ZSt11make_uniqueINSt6chrono9time_zone5_ImplEJRSt10shared_ptrINS0_9tzdb_list5_NodeEEEENSt8__detail9_MakeUniqIT_E15__single_objectEDpOT0_");
++#endif
+ asm (".hidden _ZSt11make_uniqueINSt6chrono9time_zone5_ImplEIRSt10shared_ptrINS0_9tzdb_list5_NodeEEEENSt8__detail9_MakeUniqIT_E15__single_objectEDpOT0_");
++#ifndef __riscv
+ asm (".hidden _ZNSt6vectorINSt6chrono9time_zoneESaIS1_EE12emplace_backIJS1_EEERS1_DpOT_");
++#endif
+ asm (".hidden _ZNSt6vectorINSt6chrono9time_zoneESaIS1_EE12emplace_backIIS1_EEERS1_DpOT_");
++#ifndef __riscv
+ asm (".hidden _ZNSt12_Vector_baseINSt6chrono11leap_secondESaIS1_EED2Ev");
++#endif
+ asm (".hidden _ZNSt12_Vector_baseINSt6chrono11leap_secondESaIS1_EED1Ev");
+ asm (".hidden _ZNSt6chrono9tzdb_list5_Node20_S_read_leap_secondsEv");
++#ifndef __riscv
+ asm (".hidden _ZNSt6vectorINSt6chrono14time_zone_linkESaIS1_EE12emplace_backIJS1_EEERS1_DpOT_");
++#endif
+ asm (".hidden _ZNSt6vectorINSt6chrono14time_zone_linkESaIS1_EE12emplace_backIIS1_EEERS1_DpOT_");
+ asm (".hidden _ZSt23__atomic_notify_addressIiEvPKT_b");
+ asm (".hidden _ZSt16__insertion_sortIN9__gnu_cxx17__normal_iteratorIPNSt6chrono9time_zoneESt6vectorIS3_SaIS3_EEEENS0_5__ops15_Iter_comp_iterIZNSt6ranges8__detail16__make_comp_projINSB_4lessESt8identityEEDaRT_RT0_EUlOSG_OSI_E_EEEvSG_SG_SI_");
+@@ -58,18 +76,30 @@ asm (".hidden _ZZNSt6ranges8__detail16__make_comp_projINS_4lessEMNSt6chrono9time
+ asm (".hidden _ZSt16__insertion_sortIN9__gnu_cxx17__normal_iteratorIPNSt6chrono9time_zoneESt6vectorIS3_SaIS3_EEEENS0_5__ops15_Iter_comp_iterIZNSt6ranges8__detail16__make_comp_projINSB_4lessEMS3_KDoFSt17basic_string_viewIcSt11char_traitsIcEEvEEEDaRT_RT0_EUlOSL_OSN_E_EEEvSL_SL_SN_");
+ asm (".hidden _ZZNSt6ranges8__detail16__make_comp_projINS_4lessEMNSt6chrono14time_zone_linkEKDoFSt17basic_string_viewIcSt11char_traitsIcEEvEEEDaRT_RT0_ENKUlOSB_OSD_E_clIRS4_SJ_EEbSF_SG_");
+ asm (".hidden _ZSt16__insertion_sortIN9__gnu_cxx17__normal_iteratorIPNSt6chrono14time_zone_linkESt6vectorIS3_SaIS3_EEEENS0_5__ops15_Iter_comp_iterIZNSt6ranges8__detail16__make_comp_projINSB_4lessEMS3_KDoFSt17basic_string_viewIcSt11char_traitsIcEEvEEEDaRT_RT0_EUlOSL_OSN_E_EEEvSL_SL_SN_");
++#ifndef __riscv
+ asm (".hidden _ZSt4swapINSt6chrono9time_zoneEENSt9enable_ifIXsrSt6__and_IJSt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS6_ESt18is_move_assignableIS6_EEE5valueEvE4typeERS6_SG_");
++#endif
+ asm (".hidden _ZSt4swapINSt6chrono9time_zoneEENSt9enable_ifIXsrSt6__and_IISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS6_ESt18is_move_assignableIS6_EEE5valueEvE4typeERS6_SG_");
++#ifndef __riscv
+ asm (".hidden _ZSt4swapINSt6chrono14time_zone_linkEENSt9enable_ifIXsrSt6__and_IJSt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS6_ESt18is_move_assignableIS6_EEE5valueEvE4typeERS6_SG_");
++#endif
+ asm (".hidden _ZSt4swapINSt6chrono14time_zone_linkEENSt9enable_ifIXsrSt6__and_IISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS6_ESt18is_move_assignableIS6_EEE5valueEvE4typeERS6_SG_");
++#ifndef __riscv
+ asm (".hidden _ZTVSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EE");
++#endif
+ asm (".hidden _ZNSt6chrono9tzdb_list5_Node12_S_init_tzdbEv");
++#ifndef __riscv
+ asm (".hidden _ZNSt6chrono9tzdb_list5_Node11_S_the_listE");
++#endif
++#ifndef __riscv
+ asm (".hidden _ZTSSt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTISt23_Sp_counted_ptr_inplaceINSt6chrono9tzdb_list5_NodeESaIvELN9__gnu_cxx12_Lock_policyE2EE");
++#endif
+ //asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev");
+ //asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2EOS4_");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1EOS4_");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_disposeEv");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_assignERKS4_");
+@@ -82,7 +112,9 @@ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_replaceE
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE6appendEPKcj");
+ #else
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC1EPKcmRKS3_");
++#ifndef __riscv
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2EPKcmRKS3_");
++#endif
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE7reserveEm");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE9_M_mutateEmmPKcm");
+ asm (".hidden _ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE10_M_replaceEmmPKcm");
+@@ -109,14 +141,21 @@ asm (".hidden _ZSt16__introsort_loopIN9__gnu_cxx17__normal_iteratorIPNSt6chrono1
+ asm (".hidden _ZSt16__introsort_loopIN9__gnu_cxx17__normal_iteratorIPNSt6chrono9time_zoneESt6vectorIS3_SaIS3_EEEElNS0_5__ops15_Iter_comp_iterIZNSt6ranges8__detail16__make_comp_projINSB_4lessEMS3_KDoFSt17basic_string_viewIcSt11char_traitsIcEEvEEEDaRT_RT0_EUlOSL_OSN_E_EEEvSL_SL_SN_T1_");
+ asm (".hidden _ZSt16__introsort_loopIN9__gnu_cxx17__normal_iteratorIPNSt6chrono9time_zoneESt6vectorIS3_SaIS3_EEEElNS0_5__ops15_Iter_comp_iterIZNSt6ranges8__detail16__make_comp_projINSB_4lessESt8identityEEDaRT_RT0_EUlOSG_OSI_E_EEEvSG_SG_SI_T1_");
+ #endif
++#ifndef __riscv
+ asm (".hidden _ZTSSt19_Sp_make_shared_tag");
++#endif
+ #ifndef __i386__
++#ifndef __riscv
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE24_M_release_last_use_coldEv");
+ #endif
++#endif
+ asm (".hidden _ZSt23__atomic_wait_address_vIiZNKSt13__atomic_baseIiE4waitEiSt12memory_orderEUlvE_EvPKT_S4_T0_");
++#ifndef __riscv
+ asm (".hidden _ZNSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE10_M_releaseEv");
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED2Ev");
++#endif
+ asm (".hidden _ZNSt10unique_ptrINSt10filesystem7__cxx114path5_List5_ImplENS3_13_Impl_deleterEED1Ev");
++#ifndef __riscv
+ asm (".hidden _ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE");
+@@ -124,4 +163,5 @@ asm (".hidden _ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE");
+ asm (".hidden _ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag");
+ asm (".hidden _ZZNSt8__detail18__waiter_pool_base6_S_forEPKvE3__w");
+ asm (".hidden _ZNSt6vectorISt4pairINSt6chrono8sys_infoESt17basic_string_viewIcSt11char_traitsIcEEESaIS7_EE17_M_realloc_appendIJRS2_RS6_EEEvDpOT_");
++#endif
+ asm (".hidden _ZNSt6vectorISt4pairINSt6chrono8sys_infoESt17basic_string_viewIcSt11char_traitsIcEEESaIS7_EE17_M_realloc_appendIIRS2_RS6_EEEvDpOT_");
+diff --git a/libstdc++-v3/src/nonshared98/extfloat.S b/libstdc++-v3/src/nonshared98/extfloat.S
+index c6270e618..b6e4164b5 100644
+--- a/libstdc++-v3/src/nonshared98/extfloat.S
++++ b/libstdc++-v3/src/nonshared98/extfloat.S
+@@ -53,8 +53,11 @@
+ #elif defined __s390__
+ #define ALIGN1	.align 4
+ #define ALIGN3	.align 2
++#elif defined __riscv && __riscv_xlen == 64
++#define ALIGN1	.align 3
++#define ALIGN3	.align 3
+ #endif
+-#if defined __x86_64__ || defined __powerpc64__ || defined __s390x__ || defined __ia64__ || defined __aarch64__
++#if defined __x86_64__ || defined __powerpc64__ || defined __s390x__ || defined __ia64__ || defined __aarch64__ || (defined __riscv && __riscv_xlen == 64)
+ #define SIZE1	32
+ #define SIZE2	16
+ #define OFF	16
+-- 
+2.43.0
+
diff --git a/gcc-14.spec b/gcc-14.spec
index da2064a86a1b1910dff4eae151d5c1ee1e44f21d..04d4ee0fc4ac260a7e9cfef2bf3ca0cbab584443 100644
--- a/gcc-14.spec
+++ b/gcc-14.spec
@@ -90,7 +90,7 @@
 Summary: Various compilers (C, C++, Objective-C, ...)
 Name: %{?_scl_prefix}gcc%{gcc_ver}
 Version: 14.2.1
-Release: 5
+Release: 6
 # libgcc, libgfortran, libgomp, libstdc++ and crtstuff have
 # GCC Runtime Exception.
 License: GPLv3+ and GPLv3+ with exceptions and GPLv2+ with exceptions and LGPLv2+ and BSD
@@ -172,6 +172,8 @@ Provides: %{?_scl_prefix}gcc%{gcc_ver}(major) = %{gcc_major}
 Patch1001: GCC14-1001-libstdc++-compat.patch
 Patch1002: GCC14-1002-change-gcc-version.patch
 Patch1003: GCC14-1003-i386-Add-non-optimize-prefetchi-intrins.patch
+Patch1004: GCC14-1004-riscv-lib64.patch
+Patch1005: GCC14-1005-libstdc-compat-Update-symbol-list-for-RISC-V-64.patch
 # On ARM EABI systems, we do want -gnueabi to be part of the
 # target triple.
 %global nonsharedver 80
@@ -530,7 +532,7 @@ CONFIGURE_OPTS="\
 	--prefix=%{_prefix} --mandir=%{_mandir} --infodir=%{_infodir} \
 	--with-bugurl=https://gitee.com/src-openeuler/gcc-14/issues \
 	--enable-shared --enable-threads=posix --enable-checking=release --with-isl \
-%ifarch aarch64 riscv64
+%ifarch aarch64
 	--enable-multilib \
 %else
 	--disable-multilib \
@@ -2201,6 +2203,9 @@ end
 %doc rpm.doc/changelogs/libcc1/ChangeLog*
 
 %changelog
+* Wed Aug 28 2024 YunQiang Su <yunqiang@isrc.iscas.ac.cn> - 14.2.1-6
+- Fix build on RISC-V 64.
+
 * Wed Aug 28 2024 zhaoshujian <zhaoshujian@huawei.com> - 14.2.1-5
 - Change stdc++_nonshared_48 to stdc++_nonshared_80.