MicroBlaze Toolchain

.github/workflows/ci.yml

@@ -44,6 +44,7 @@ on:
         - arc64-zephyr-elf
         - arc-zephyr-elf
         - arm-zephyr-eabi
+        - microblazeel-zephyr-elf
         - mips-zephyr-elf
         - nios2-zephyr-elf
         - riscv64-zephyr-elf
@@ -150,6 +151,7 @@ jobs:
             arc64-zephyr-elf)                     build_target_arc64_zephyr_elf="y";;
             arc-zephyr-elf)                       build_target_arc_zephyr_elf="y";;
             arm-zephyr-eabi)                      build_target_arm_zephyr_eabi="y";;
+            microblazeel-zephyr-elf)              build_target_microblazeel_zephyr_elf="y";;
             mips-zephyr-elf)                      build_target_mips_zephyr_elf="y";;
             nios2-zephyr-elf)                     build_target_nios2_zephyr_elf="y";;
             riscv64-zephyr-elf)                   build_target_riscv64_zephyr_elf="y";;
@@ -184,6 +186,7 @@ jobs:
           build_target_arc64_zephyr_elf="y"
           build_target_arc_zephyr_elf="y"
           build_target_arm_zephyr_eabi="y"
+          build_target_microblazeel_zephyr_elf="y"
           build_target_mips_zephyr_elf="y"
           build_target_nios2_zephyr_elf="y"
           build_target_riscv64_zephyr_elf="y"
@@ -258,6 +261,7 @@ jobs:
         [ "${build_target_arc64_zephyr_elf}" == "y" ]                     && MATRIX_TARGETS+='"arc64-zephyr-elf",'
         [ "${build_target_arc_zephyr_elf}" == "y" ]                       && MATRIX_TARGETS+='"arc-zephyr-elf",'
         [ "${build_target_arm_zephyr_eabi}" == "y" ]                      && MATRIX_TARGETS+='"arm-zephyr-eabi",'
+        [ "${build_target_microblazeel_zephyr_elf}" == "y" ]              && MATRIX_TARGETS+='"microblazeel-zephyr-elf",'
         [ "${build_target_mips_zephyr_elf}" == "y" ]                      && MATRIX_TARGETS+='"mips-zephyr-elf",'
         [ "${build_target_nios2_zephyr_elf}" == "y" ]                     && MATRIX_TARGETS+='"nios2-zephyr-elf",'
         [ "${build_target_riscv64_zephyr_elf}" == "y" ]                   && MATRIX_TARGETS+='"riscv64-zephyr-elf",'
@@ -1486,6 +1490,10 @@ jobs:
               PLATFORM_ARGS+="-p mps2_an521 "
               PLATFORM_ARGS+="-p mps3_an547 "
               ;;
+            # TODO: Release the microblaze arch source in a public repo
+            # microblazeel-zephyr-elf)
+            #  PLATFORM_ARGS+="-p qemu_microblaze "
+            #  ;;
             mips-zephyr-elf)
               PLATFORM_ARGS+="-p qemu_malta "
               ;;

README.md

@@ -8,6 +8,7 @@ The toolchains for the following target architectures are supported:
 
 - ARC (32-bit and 64-bit; ARCv1, ARCv2, ARCv3)
 - ARM (32-bit and 64-bit; ARMv6, ARMv7, ARMv8; A/R/M Profiles)
+- Microblaze (32-bit)
 - MIPS (32-bit and 64-bit)
 - Nios II
 - RISC-V (32-bit and 64-bit; RV32I, RV32E, RV64I)

cmake/zephyr/target.cmake

@@ -10,6 +10,7 @@ set(CROSS_COMPILE_TARGET_arm64   aarch64-zephyr-elf)
 set(CROSS_COMPILE_TARGET_nios2     nios2-zephyr-elf)
 set(CROSS_COMPILE_TARGET_riscv   riscv64-zephyr-elf)
 set(CROSS_COMPILE_TARGET_mips       mips-zephyr-elf)
+set(CROSS_COMPILE_TARGET_microblaze microblazeel-zephyr-elf)
 set(CROSS_COMPILE_TARGET_xtensa   xtensa-${SOC_TOOLCHAIN_NAME}_zephyr-elf)
 
 # ARC uses the same source tree for both ARCv2 & ARCv3 architectures,

configs/microblazeel-zephyr-elf.config

@@ -0,0 +1,62 @@
+CT_CONFIG_VERSION="3"
+CT_EXPERIMENTAL=y
+# CT_PREFIX_DIR_RO is not set
+# CT_LOG_PROGRESS_BAR is not set
+CT_ARCH_MICROBLAZE=y
+CT_ARCH_LE=y
+CT_MULTILIB=y
+CT_TARGET_CFLAGS="-G0 -fno-pic"
+CT_TARGET_VENDOR="zephyr"
+CT_BINUTILS_SRC_CUSTOM=y
+CT_BINUTILS_CUSTOM_LOCATION="${GITHUB_WORKSPACE}/binutils"
+CT_NEWLIB_SRC_CUSTOM=y
+CT_NEWLIB_CUSTOM_LOCATION="${GITHUB_WORKSPACE}/newlib"
+CT_LIBC_NEWLIB_TARGET_CFLAGS="-O2"
+# CT_LIBC_NEWLIB_ENABLE_TARGET_OPTSPACE is not set
+CT_LIBC_NEWLIB_IO_C99FMT=y
+CT_LIBC_NEWLIB_IO_LL=y
+CT_LIBC_NEWLIB_IO_FLOAT=y
+# CT_LIBC_NEWLIB_FSEEK_OPTIMIZATION is not set
+CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
+CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
+CT_LIBC_NEWLIB_LITE_EXIT=y
+CT_LIBC_NEWLIB_MULTITHREAD=y
+CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
+# CT_LIBC_NEWLIB_WIDE_ORIENT is not set
+# CT_LIBC_NEWLIB_NANO_MALLOC is not set
+# CT_LIBC_NEWLIB_NANO_FORMATTED_IO is not set
+CT_LIBC_NEWLIB_EXTRA_SECTIONS=y
+CT_GCC_SRC_CUSTOM=y
+CT_GCC_CUSTOM_LOCATION="${GITHUB_WORKSPACE}/gcc"
+CT_CC_GCC_EXTRA_CONFIG_ARRAY="--with-gnu-ld --with-gnu-as --enable-initfini-array"
+CT_CC_LANG_CXX=y
+CT_DEBUG_GDB=y
+CT_GDB_SRC_CUSTOM=y
+CT_GDB_CUSTOM_LOCATION="${GITHUB_WORKSPACE}/gdb"
+CT_COMP_LIBS_NEWLIB_NANO=y
+CT_NEWLIB_NANO_SRC_CUSTOM=y
+CT_NEWLIB_NANO_CUSTOM_LOCATION="${GITHUB_WORKSPACE}/newlib"
+CT_NEWLIB_NANO_GCC_LIBSTDCXX=y
+CT_NEWLIB_NANO_INSTALL_IN_TARGET=y
+# CT_LIBC_NEWLIB_NANO_IO_C99FMT is not set
+# CT_LIBC_NEWLIB_NANO_IO_LL is not set
+CT_LIBC_NEWLIB_NANO_IO_FLOAT=y
+# CT_LIBC_NEWLIB_NANO_IO_LDBL is not set
+# CT_LIBC_NEWLIB_NANO_IO_POS_ARGS is not set
+CT_LIBC_NEWLIB_NANO_FVWRITE_IN_STREAMIO=y
+# CT_LIBC_NEWLIB_NANO_UNBUF_STREAM_OPT is not set
+# CT_LIBC_NEWLIB_NANO_FSEEK_OPTIMIZATION is not set
+CT_LIBC_NEWLIB_NANO_DISABLE_SUPPLIED_SYSCALLS=y
+# CT_LIBC_NEWLIB_NANO_REGISTER_FINI is not set
+CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
+CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
+CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
+CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
+CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
+CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
+# CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
+CT_LIBC_NEWLIB_NANO_ENABLE_TARGET_OPTSPACE=y
+# CT_LIBC_NEWLIB_NANO_LTO is not set
+CT_LIBC_NEWLIB_NANO_NANO_MALLOC=y
+CT_LIBC_NEWLIB_NANO_NANO_FORMATTED_IO=y