RISC-V: update multilibs

We now have the following multilibs for RISC-V:

rv32ima (default)
rv32im
rv32imac
rv32imafc
rv32imafd
rv64imac
rv64imafdc
rv64imafd
rv64imac, mcmodel=medany
rv64imafdc, mcmodel=medany
rv64imafd, mcmodel=medany

Signed-off-by: Martin Åberg <[email protected]>

Author: tbr-tt

gcc/config.gcc

@@ -2472,6 +2472,9 @@ riscv*-*-linux*)
 riscv*-*-elf* | riscv*-*-rtems*)
 	tm_file="elfos.h newlib-stdint.h ${tm_file} riscv/elf.h"
 	case ${target} in
+	*-zephyr*)
+	  tmake_file="${tmake_file} riscv/t-zephyr"
+	  ;;
 	*-*-rtems*)
 	  tm_file="${tm_file} riscv/rtems.h rtems.h"
 	  tmake_file="${tmake_file} riscv/t-rtems"

gcc/config/riscv/t-zephyr

@@ -0,0 +1,38 @@
+# This file was generated by multilib-generator with the command:
+#  ./multilib-generator rv32im-ilp32--c rv32imac-ilp32-- rv32imafc-ilp32f-- rv32imafd-ilp32d--c rv64imac-lp64-- rv64imafdc-lp64d-- rv64imafd-lp64d--
+MULTILIB_OPTIONS = march=rv32im/march=rv32imc/march=rv32imac/march=rv32imafc/march=rv32imafd/march=rv32imafdc/march=rv32g/march=rv32gc/march=rv64imac/march=rv64imafdc/march=rv64gc/march=rv64imafd/march=rv64g mabi=ilp32/mabi=ilp32f/mabi=ilp32d/mabi=lp64/mabi=lp64d
+MULTILIB_DIRNAMES = rv32im \
+rv32imc \
+rv32imac \
+rv32imafc \
+rv32imafd \
+rv32imafdc \
+rv32g \
+rv32gc \
+rv64imac \
+rv64imafdc \
+rv64gc \
+rv64imafd \
+rv64g ilp32 \
+ilp32f \
+ilp32d \
+lp64 \
+lp64d
+MULTILIB_OPTIONS += mcmodel=medany
+MULTILIB_DIRNAMES += medany
+MULTILIB_REQUIRED = march=rv32im/mabi=ilp32 \
+march=rv32imac/mabi=ilp32 \
+march=rv32imafc/mabi=ilp32f \
+march=rv32imafd/mabi=ilp32d \
+march=rv64imac/mabi=lp64 \
+march=rv64imafdc/mabi=lp64d \
+march=rv64imafd/mabi=lp64d \
+march=rv64imac/mabi=lp64/mcmodel=medany \
+march=rv64imafdc/mabi=lp64d/mcmodel=medany \
+march=rv64imafd/mabi=lp64d/mcmodel=medany
+MULTILIB_REUSE = march.rv32im/mabi.ilp32=march.rv32imc/mabi.ilp32 \
+march.rv32imafd/mabi.ilp32d=march.rv32imafdc/mabi.ilp32d \
+march.rv32imafd/mabi.ilp32d=march.rv32g/mabi.ilp32d \
+march.rv32imafd/mabi.ilp32d=march.rv32gc/mabi.ilp32d \
+march.rv64imafdc/mabi.lp64d=march.rv64gc/mabi.lp64d \
+march.rv64imafd/mabi.lp64d=march.rv64g/mabi.lp64d