1  /* Definitions for RISC-V GNU/Linux systems with ELF format.
       2     Copyright (C) 1998-2023 Free Software Foundation, Inc.
       3  
       4  This file is part of GCC.
       5  
       6  GCC is free software; you can redistribute it and/or modify
       7  it under the terms of the GNU General Public License as published by
       8  the Free Software Foundation; either version 3, or (at your option)
       9  any later version.
      10  
      11  GCC is distributed in the hope that it will be useful,
      12  but WITHOUT ANY WARRANTY; without even the implied warranty of
      13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14  GNU General Public License for more details.
      15  
      16  You should have received a copy of the GNU General Public License
      17  along with GCC; see the file COPYING3.  If not see
      18  <http://www.gnu.org/licenses/>.  */
      19  
      20  #define TARGET_OS_CPP_BUILTINS()				\
      21    do {								\
      22      GNU_USER_TARGET_OS_CPP_BUILTINS();				\
      23    } while (0)
      24  
      25  #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-riscv" XLEN_SPEC "-" ABI_SPEC ".so.1"
      26  
      27  #define MUSL_ABI_SUFFIX \
      28    "%{mabi=ilp32:-sf}" \
      29    "%{mabi=ilp32f:-sp}" \
      30    "%{mabi=ilp32d:}" \
      31    "%{mabi=lp64:-sf}" \
      32    "%{mabi=lp64f:-sp}" \
      33    "%{mabi=lp64d:}"
      34  
      35  #undef MUSL_DYNAMIC_LINKER
      36  #define MUSL_DYNAMIC_LINKER "/lib/ld-musl-riscv" XLEN_SPEC MUSL_ABI_SUFFIX ".so.1"
      37  
      38  #define ICACHE_FLUSH_FUNC "__riscv_flush_icache"
      39  
      40  #define CPP_SPEC "%{pthread:-D_REENTRANT}"
      41  
      42  #define LD_EMUL_SUFFIX \
      43    "%{mabi=lp64d:}" \
      44    "%{mabi=lp64f:_lp64f}" \
      45    "%{mabi=lp64:_lp64}" \
      46    "%{mabi=ilp32d:}" \
      47    "%{mabi=ilp32f:_ilp32f}" \
      48    "%{mabi=ilp32:_ilp32}"
      49  
      50  #define LINK_SPEC "\
      51  -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \
      52  %{mno-relax:--no-relax} \
      53  %{mbig-endian:-EB} \
      54  %{mlittle-endian:-EL} \
      55  %{shared} \
      56    %{!shared: \
      57      %{!static: \
      58        %{rdynamic:-export-dynamic} \
      59        -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
      60      %{static:-static}}"
      61  
      62  #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
      63  
      64  #define STARTFILE_PREFIX_SPEC 			\
      65     "/lib" XLEN_SPEC "/" ABI_SPEC "/ "		\
      66     "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ "	\
      67     "/lib/ "					\
      68     "/usr/lib/ "
      69  
      70  #define RISCV_USE_CUSTOMISED_MULTI_LIB select_by_abi