Add support for RISC-V 32bit target

Author: kubo39

arrayboundscheck/CMakeLists.txt

@@ -14,6 +14,12 @@ elseif(CONFIG_CPU_CORTEX_M)
     else()
         message(FATAL_ERROR "Unknown Cortex-M target")
     endif()
+elseif(CONFIG_RISCV)
+    if(CONFIG_RISCV_ISA_RV32I)
+        set(ldc_target riscv32-unknown-elf)
+    else()
+        message(FATAL_ERROR "Unsupported riscv ISA")
+    endif()
 else()
     message(FATAL_ERROR "ARCH ${ARCH} not supported")
 endif()

pthread/CMakeLists.txt

@@ -14,6 +14,12 @@ elseif(CONFIG_CPU_CORTEX_M)
     else()
         message(FATAL_ERROR "Unknown Cortex-M target")
     endif()
+elseif(CONFIG_RISCV)
+    if(CONFIG_RISCV_ISA_RV32I)
+        set(ldc_target riscv32-unknown-elf)
+    else()
+        message(FATAL_ERROR "Unsupported riscv ISA")
+    endif()
 else()
     message(FATAL_ERROR "ARCH ${ARCH} not supported")
 endif()