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-rw-r--r--gcc/config/riscv/gnu.h59
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diff --git a/gcc/config/riscv/gnu.h b/gcc/config/riscv/gnu.h
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+/* Definitions for RISC-V GNU/Hurd systems with ELF format.
+ Copyright (C) 1998-2025 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do { \
+ GNU_USER_TARGET_OS_CPP_BUILTINS(); \
+ } while (0)
+
+#define GNU_USER_DYNAMIC_LINKER "/lib/ld-riscv" XLEN_SPEC "-" ABI_SPEC ".so.1"
+
+#define ICACHE_FLUSH_FUNC "__riscv_flush_icache"
+
+#define CPP_SPEC "%{pthread:-D_REENTRANT}"
+
+#define LD_EMUL_SUFFIX \
+ "%{mabi=lp64d:}" \
+ "%{mabi=lp64f:_lp64f}" \
+ "%{mabi=lp64:_lp64}" \
+ "%{mabi=ilp32d:}" \
+ "%{mabi=ilp32f:_ilp32f}" \
+ "%{mabi=ilp32:_ilp32}"
+
+#define LINK_SPEC "\
+-melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \
+%{mno-relax:--no-relax} \
+-X \
+%{mbig-endian:-EB} \
+%{mlittle-endian:-EL} \
+%{shared} \
+ %{!shared: \
+ %{!static: \
+ %{!static-pie: \
+ %{rdynamic:-export-dynamic} \
+ -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+ %{static:-static} %{static-pie:-static -pie --no-dynamic-linker -z text}}"
+
+#define STARTFILE_PREFIX_SPEC \
+ "/lib" XLEN_SPEC "/" ABI_SPEC "/ " \
+ "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ " \
+ "/lib/ " \
+ "/usr/lib/ "
+
+#define RISCV_USE_CUSTOMISED_MULTI_LIB select_by_abi