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toolchain: iar: Add experimental IAR support
This adds experimental support for the IAR toolchain. Signed-off-by: Robin Kastberg <[email protected]>
1 parent d41da75 commit 9ab06ec

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+2848
-9
lines changed

Diff for: ‎arch/common/CMakeLists.txt

+15-6
Original file line numberDiff line numberDiff line change
@@ -56,12 +56,21 @@ zephyr_linker_sources_ifdef(CONFIG_GEN_IRQ_VECTOR_TABLE
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)
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5858
if(CONFIG_GEN_ISR_TABLES)
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zephyr_linker_section(NAME .intList VMA IDT_LIST LMA IDT_LIST NOINPUT PASS NOT LINKER_ZEPHYR_FINAL)
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zephyr_linker_section_configure(SECTION .intList KEEP INPUT ".irq_info" FIRST)
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zephyr_linker_section_configure(SECTION .intList KEEP INPUT ".intList")
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zephyr_linker_section_configure(SECTION /DISCARD/ KEEP INPUT ".irq_info" PASS LINKER_ZEPHYR_FINAL)
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zephyr_linker_section_configure(SECTION /DISCARD/ KEEP INPUT ".intList" PASS LINKER_ZEPHYR_FINAL)
59+
# IAR Toolchain is having problems with discarding .intList
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# This will always keep .intList in a harmless location
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# until we can implement a proper DISCARD.
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if(ZEPHYR_TOOLCHAIN_VARIANT STREQUAL "iar")
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zephyr_linker_section(NAME .intList GROUP RODATA_REGION NOINPUT)
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zephyr_linker_section_configure(SECTION .intList KEEP INPUT ".irq_info" FIRST)
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zephyr_linker_section_configure(SECTION .intList KEEP INPUT ".intList")
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else()
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zephyr_linker_section(NAME .intList VMA IDT_LIST LMA IDT_LIST NOINPUT PASS NOT LINKER_ZEPHYR_FINAL)
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zephyr_linker_section_configure(SECTION .intList KEEP INPUT ".irq_info" FIRST)
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zephyr_linker_section_configure(SECTION .intList KEEP INPUT ".intList")
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zephyr_linker_section_configure(SECTION /DISCARD/ KEEP INPUT ".irq_info" PASS LINKER_ZEPHYR_FINAL)
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zephyr_linker_section_configure(SECTION /DISCARD/ KEEP INPUT ".intList" PASS LINKER_ZEPHYR_FINAL)
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endif()
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endif()
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zephyr_linker_sources_ifdef(CONFIG_ARCH_HAS_RAMFUNC_SUPPORT

Diff for: ‎cmake/bintools/iar/target.cmake

+44
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@@ -0,0 +1,44 @@
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# Copyright (c) 2025 IAR Systems AB
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#
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# SPDX-License-Identifier: Apache-2.0
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# Configures binary tools as GNU binutils
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include(extensions)
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# Specifically choose arm-zephyr-eabi from the zephyr sdk for objcopy and friends
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if("${IAR_TOOLCHAIN_VARIANT}" STREQUAL "iccarm")
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set(IAR_ZEPHYR_HOME ${ZEPHYR_SDK_INSTALL_DIR}/arm-zephyr-eabi/bin)
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set(IAR_GNU_PREFIX arm-zephyr-eabi-)
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else()
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message(ERROR "IAR_TOOLCHAIN_VARIANT not set")
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endif()
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find_program(CMAKE_OBJCOPY ${IAR_GNU_PREFIX}objcopy PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_OBJDUMP ${IAR_GNU_PREFIX}objdump PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_AS ${IAR_GNU_PREFIX}as PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_AR ${IAR_GNU_PREFIX}ar PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_RANLIB ${IAR_GNU_PREFIX}ranlib PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_READELF ${IAR_GNU_PREFIX}readelf PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_NM ${IAR_GNU_PREFIX}nm PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_STRIP ${IAR_GNU_PREFIX}strip PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_GDB ${IAR_GNU_PREFIX}gdb-py PATHS ${IAR_ZEPHYR_HOME} NO_DEFAULT_PATH)
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if(CMAKE_GDB)
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execute_process(
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COMMAND ${CMAKE_GDB} --configuration
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RESULTS_VARIABLE GDB_CFG_ERR
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OUTPUT_QUIET
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ERROR_QUIET
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)
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endif()
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if(NOT CMAKE_GDB OR GDB_CFG_ERR)
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find_program(CMAKE_GDB_NO_PY ${CROSS_COMPILE}gdb PATHS ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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if(CMAKE_GDB_NO_PY)
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set(CMAKE_GDB ${CMAKE_GDB_NO_PY} CACHE FILEPATH "Path to a program." FORCE)
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endif()
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endif()
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# Include bin tool properties
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include(${ZEPHYR_BASE}/cmake/bintools/iar/target_bintools.cmake)

Diff for: ‎cmake/bintools/iar/target_bintools.cmake

+135
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# Copyright (c) 2025 IAR Systems AB
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# - elfconvert : Name of command for elf file conversion.
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# In this implementation `objcopy` is used
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# elfconvert_formats : Formats supported: ihex, srec, binary
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# elfconvert_flag : empty
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# elfconvert_flag_final : empty
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# elfconvert_flag_strip_all : -S
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# elfconvert_flag_strip_debug : -g
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# elfconvert_flag_intarget : --input-target=
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# elfconvert_flag_outtarget : --output-target=
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# elfconvert_flag_section_remove: --remove-section=
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# elfconvert_flag_section_only : --only-section=
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# elfconvert_flag_section_rename: --rename-section;
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# elfconvert_flag_gapfill : --gap-fill;
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# Note: The ';' will be transformed into an
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# empty space when executed
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# elfconvert_flag_srec_len : --srec-len=
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# elfconvert_flag_infile : empty, objcopy doesn't take arguments for filenames
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# elfconvert_flag_outfile : empty, objcopy doesn't take arguments for filenames
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#
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# elfconvert to use for transforming an elf file into another format,
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# such as intel hex, s-rec, binary, etc.
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set_property(TARGET bintools PROPERTY elfconvert_command ${CMAKE_OBJCOPY})
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# List of format the tool supports for converting, for example,
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# GNU tools uses objectcopy, which supports the following: ihex, srec, binary
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set_property(TARGET bintools PROPERTY elfconvert_formats ihex srec binary)
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set_property(TARGET bintools PROPERTY elfconvert_flag "")
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set_property(TARGET bintools PROPERTY elfconvert_flag_final "")
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set_property(TARGET bintools PROPERTY elfconvert_flag_strip_all "-S")
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set_property(TARGET bintools PROPERTY elfconvert_flag_strip_debug "-g")
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set_property(TARGET bintools PROPERTY elfconvert_flag_intarget "--input-target=")
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set_property(TARGET bintools PROPERTY elfconvert_flag_outtarget "--output-target=")
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set_property(TARGET bintools PROPERTY elfconvert_flag_section_remove "--remove-section=")
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set_property(TARGET bintools PROPERTY elfconvert_flag_section_only "--only-section=")
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set_property(TARGET bintools PROPERTY elfconvert_flag_section_rename "--rename-section;")
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set_property(TARGET bintools PROPERTY elfconvert_flag_lma_adjust "--change-section-lma;")
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# Note, placing a ';' at the end results in the following param to be a list,
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# and hence space separated.
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# Thus the command line argument becomes:
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# `--gap-file <value>` instead of `--gap-fill<value>` (The latter would result in an error)
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set_property(TARGET bintools PROPERTY elfconvert_flag_gapfill "--gap-fill;")
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set_property(TARGET bintools PROPERTY elfconvert_flag_srec_len "--srec-len=")
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set_property(TARGET bintools PROPERTY elfconvert_flag_infile "")
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set_property(TARGET bintools PROPERTY elfconvert_flag_outfile "")
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#
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# - disassembly : Name of command for disassembly of files
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# In this implementation `objdump` is used
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# disassembly_flag : -d
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# disassembly_flag_final : empty
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# disassembly_flag_inline_source : -S
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# disassembly_flag_all : -SDz
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# disassembly_flag_infile : empty, objdump doesn't take arguments for filenames
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# disassembly_flag_outfile : '>', objdump doesn't take arguments for output file, but result is printed to standard out, and is redirected.
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set_property(TARGET bintools PROPERTY disassembly_command ${CMAKE_OBJDUMP})
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set_property(TARGET bintools PROPERTY disassembly_flag -d)
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set_property(TARGET bintools PROPERTY disassembly_flag_final "")
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set_property(TARGET bintools PROPERTY disassembly_flag_inline_source -S)
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set_property(TARGET bintools PROPERTY disassembly_flag_all -SDz)
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set_property(TARGET bintools PROPERTY disassembly_flag_infile "")
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set_property(TARGET bintools PROPERTY disassembly_flag_outfile ">;" )
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#
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# - strip: Name of command for stripping symbols
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# In this implementation `strip` is used
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# strip_flag : empty
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# strip_flag_final : empty
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# strip_flag_all : --strip-all
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# strip_flag_debug : --strip-debug
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# strip_flag_dwo : --strip-dwo
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# strip_flag_infile : empty, strip doesn't take arguments for input file
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# strip_flag_outfile : -o
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# This is using strip from bintools.
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set_property(TARGET bintools PROPERTY strip_command ${CMAKE_STRIP})
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# Any flag the strip command requires for processing
92+
set_property(TARGET bintools PROPERTY strip_flag "")
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set_property(TARGET bintools PROPERTY strip_flag_final "")
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set_property(TARGET bintools PROPERTY strip_flag_all --strip-all)
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set_property(TARGET bintools PROPERTY strip_flag_debug --strip-debug)
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set_property(TARGET bintools PROPERTY strip_flag_dwo --strip-dwo)
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set_property(TARGET bintools PROPERTY strip_flag_remove_section -R )
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set_property(TARGET bintools PROPERTY strip_flag_infile "")
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set_property(TARGET bintools PROPERTY strip_flag_outfile -o )
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#
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# - readelf : Name of command for reading elf files.
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# In this implementation `readelf` is used
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# readelf_flag : empty
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# readelf_flag_final : empty
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# readelf_flag_headers : -e
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# readelf_flag_infile : empty, readelf doesn't take arguments for filenames
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# readelf_flag_outfile : '>', readelf doesn't take arguments for output
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# file, but result is printed to standard out, and
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# is redirected.
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# This is using readelf from bintools.
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set_property(TARGET bintools PROPERTY readelf_command ${CMAKE_READELF})
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set_property(TARGET bintools PROPERTY readelf_flag "")
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set_property(TARGET bintools PROPERTY readelf_flag_final "")
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set_property(TARGET bintools PROPERTY readelf_flag_headers -e)
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set_property(TARGET bintools PROPERTY readelf_flag_infile "")
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set_property(TARGET bintools PROPERTY readelf_flag_outfile ">;" )
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# Example on how to support dwarfdump instead of readelf
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#set_property(TARGET bintools PROPERTY readelf_command dwarfdump)
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#set_property(TARGET bintools PROPERTY readelf_flag "")
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#set_property(TARGET bintools PROPERTY readelf_flag_headers -E)
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#set_property(TARGET bintools PROPERTY readelf_flag_infile "")
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#set_property(TARGET bintools PROPERTY readelf_flag_outfile "-O file=" )
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set_property(TARGET bintools PROPERTY symbols_command ${CMAKE_NM})
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set_property(TARGET bintools PROPERTY symbols_flag "")
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set_property(TARGET bintools PROPERTY symbols_final "")
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set_property(TARGET bintools PROPERTY symbols_infile "")
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set_property(TARGET bintools PROPERTY symbols_outfile ">;" )

Diff for: ‎cmake/compiler/iar/compiler_flags.cmake

+178
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@@ -0,0 +1,178 @@
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# Copyright (c) 2025 IAR Systems AB
2+
#
3+
# SPDX-License-Identifier: Apache-2.0
4+
5+
# Compiler options for the IAR C/C++ Compiler for Arm
6+
7+
#####################################################
8+
# This section covers flags related to optimization #
9+
#####################################################
10+
set_compiler_property(PROPERTY no_optimization -On)
11+
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set_compiler_property(PROPERTY optimization_debug -Ol)
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set_compiler_property(PROPERTY optimization_speed -Ohs)
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set_compiler_property(PROPERTY optimization_size -Ohz)
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set_compiler_property(PROPERTY optimization_size_aggressive -Ohz)
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#######################################################
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# This section covers flags related to warning levels #
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#######################################################
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# Property for standard warning base in Zephyr, this will always be set when
25+
# compiling.
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set_compiler_property(PROPERTY warning_base
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--diag_error=Pe223 # function "xxx" declared implicitly
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--diag_warning=Pe054 # too few arguments in invocation of macro
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--diag_warning=Pe144 # a value of type "void *" cannot be used to initialize an entity of type [...] "void (*)(struct onoff_manager *, int)"
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--diag_warning=Pe167 # argument of type "void *" is incompatible with [...] "void (*)(void *, void *, void *)"
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--diag_suppress=Pe1675 # unrecognized GCC pragma
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--diag_suppress=Pe111 # statement is unreachable
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--diag_suppress=Pe1143 # arithmetic on pointer to void or function type
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--diag_suppress=Pe068) # integer conversion resulted in a change of sign)
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set(IAR_WARNING_DW_1
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--diag_suppress=Pe188 # enumerated type mixed with another type
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--diag_suppress=Pe128 # loop is not reachable
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--diag_suppress=Pe550 # variable "res" was set but never used
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--diag_suppress=Pe546 # transfer of control bypasses initialization
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--diag_suppress=Pe186) # pointless comparison of unsigned integer with zero
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set(IAR_WARNING_DW2
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--diag_suppress=Pe1097 # unknown attribute
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--diag_suppress=Pe381 # extra ";" ignored
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--diag_suppress=Pa082 # undefined behavior: the order of volatile accesses is undefined
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--diag_suppress=Pa084 # pointless integer comparison, the result is always false
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--diag_suppress=Pe185 # dynamic initialization in unreachable code )
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--diag_suppress=Pe167 # argument of type "onoff_notify_fn" is incompatible with...
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--diag_suppress=Pe144 # a value of type "void *" cannot be used to initialize...
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--diag_suppress=Pe177 # function "xxx" was declared but never referenced
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--diag_suppress=Pe513) # a value of type "void *" cannot be assigned to an entity of type "int (*)(int)"
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set(IAR_WARNING_DW3)
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set_compiler_property(PROPERTY warning_dw_1
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${IAR_WARNING_DW_3}
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${IAR_WARNING_DW_2}
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${IAR_WARNING_DW_1})
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set_compiler_property(PROPERTY warning_dw_2
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${IAR_WARNING_DW3}
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${IAR_WARNING_DW2})
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# no suppressions
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set_compiler_property(PROPERTY warning_dw_3 ${IAR_WARNING_DW3})
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# Extended warning set supported by the compiler
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set_compiler_property(PROPERTY warning_extended)
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# Compiler property that will issue error if a declaration does not specify a type
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set_compiler_property(PROPERTY warning_error_implicit_int)
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# Compiler flags to use when compiling according to MISRA
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set_compiler_property(PROPERTY warning_error_misra_sane)
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set_property(TARGET compiler PROPERTY warnings_as_errors --warnings_are_errors)
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###########################################################################
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# This section covers flags related to C or C++ standards / standard libs #
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###########################################################################
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# Compiler flags for C standard. The specific standard must be appended by user.
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# For example, gcc specifies this as: set_compiler_property(PROPERTY cstd -std=)
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# TC-WG: the `cstd99` is used regardless of this flag being useful for iccarm
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# This flag will make it a symbol. Works for C,CXX,ASM
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# Since ICCARM does not use C standard flags, we just make them a defined symbol
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# instead
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set_compiler_property(PROPERTY cstd -D__IAR_CSTD_)
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# Compiler flags for disabling C standard include and instead specify include
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# dirs in nostdinc_include to use.
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set_compiler_property(PROPERTY nostdinc)
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set_compiler_property(PROPERTY nostdinc_include)
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# Compiler flags for disabling C++ standard include.
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set_compiler_property(TARGET compiler-cpp PROPERTY nostdincxx)
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# Required C++ flags when compiling C++ code
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set_property(TARGET compiler-cpp PROPERTY required --c++)
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# Compiler flags to use for specific C++ dialects
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp98)
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp11)
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp14)
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp17 --libc++)
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp2a --libc++)
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp20 --libc++)
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp2b --libc++)
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# Flag for disabling strict aliasing rule in C and C++
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set_compiler_property(PROPERTY no_strict_aliasing)
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# Flag for disabling exceptions in C++
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set_property(TARGET compiler-cpp PROPERTY no_exceptions --no_exceptions)
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# Flag for disabling rtti in C++
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set_property(TARGET compiler-cpp PROPERTY no_rtti --no_rtti)
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###################################################
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# This section covers all remaining C / C++ flags #
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###################################################
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# Flags for coverage generation
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set_compiler_property(PROPERTY coverage)
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# Security canaries flags.
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set_compiler_property(PROPERTY security_canaries --stack_protection)
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set_compiler_property(PROPERTY security_canaries_strong --stack_protection)
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set_compiler_property(PROPERTY security_canaries_all --security_canaries_all_is_not_supported)
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set_compiler_property(PROPERTY security_canaries_explicit --security_canaries_explicit_is_not_supported)
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if(CONFIG_STACK_CANARIES_TLS)
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check_set_compiler_property(APPEND PROPERTY security_canaries --stack_protector_guard=tls)
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check_set_compiler_property(APPEND PROPERTY security_canaries_strong --stack_protector_guard=tls)
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check_set_compiler_property(APPEND PROPERTY security_canaries_all --stack_protector_guard=tls)
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check_set_compiler_property(APPEND PROPERTY security_canaries_explicit --stack_protector_guard=tls)
139+
endif()
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set_compiler_property(PROPERTY security_fortify)
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# Flag for a hosted (no-freestanding) application
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set_compiler_property(PROPERTY hosted)
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# gcc flag for a freestanding application
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set_compiler_property(PROPERTY freestanding)
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# Flag to include debugging symbol in compilation
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set_property(TARGET compiler PROPERTY debug --debug)
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set_property(TARGET compiler-cpp PROPERTY debug --debug)
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set_property(TARGET asm PROPERTY debug -gdwarf-4)
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set_compiler_property(PROPERTY no_common)
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# Flags for imacros. The specific header must be appended by user.
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set_property(TARGET compiler PROPERTY imacros --preinclude)
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set_property(TARGET compiler-cpp PROPERTY imacros --preinclude)
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set_property(TARGET asm PROPERTY imacros -imacros)
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# Compiler flag for turning off thread-safe initialization of local statics
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set_property(TARGET compiler-cpp PROPERTY no_threadsafe_statics)
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# Required ASM flags when compiling
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set_property(TARGET asm PROPERTY required)
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# Compiler flag for disabling pointer arithmetic warnings
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set_compiler_property(PROPERTY warning_no_pointer_arithmetic)
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# Compiler flags for disabling position independent code / executable
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set_compiler_property(PROPERTY no_position_independent)
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# Compiler flag for defining preinclude files.
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set_compiler_property(PROPERTY include_file --preinclude)
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set_compiler_property(PROPERTY cmse --cmse)
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set_property(TARGET asm PROPERTY cmse -mcmse)

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