GCC ARM Embedded

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GCC ARM Embedded
Software Details:
Version: 7-2018-q2 updated
Upload Date: 17 Aug 18
Distribution Type: Freeware
Downloads: 67

Rating: 2.5/5 (Total Votes: 2)

GCC ARM Embedded is an open source and freely distributed software that contains a pre-built GNU toolchain for ARM Cortex-R and Cortex-M processors. The project aims to bring the GNU Tools to ARM Embedded Processors, helping developers with various compilation tasks.

Supports all important Cortex ARM processors

The software has been created from the ground up to support all the important Cortex ARM processors, including Cortex-R4, Cortex-R5, Cortex-R7, Cortex-M3, Cortex-M4, Cortex-M7, Cortex-M0+, and Cortex-M0.

Being maintained by the ARM employees, the GCC ARM Embedded software is part of an ongoing commitment to enhance and maintain the GNU Compiler Collection (GCC) support for the ARM architecture.

Getting started with GCC ARM Embedded

To use the GCC ARM Embedded software on your GNU/Linux computer, you should download the binary package, which contains all the pre-built binaries that you need to get started. Save the archive somewhere on your computer, preferably your Home directory, use an archive manager utility to extract its contents.

Then, open a Terminal app and navigate to the location where you have extracted the archive file (e.g. cd /home/softoware/gcc-arm-none-eabi-4_9-2014q4). All binaries are located on the ‘bin’ folder.

Availability and supported hardware platforms

GCC ARM Embedded is distributed as binary and source archives, as well as a PPA repository for the latest releases of the Ubuntu Linux operating system, supporting both 32 and 64-bit architectures. Please note that the software is also compatible with the Mac OS X and Microsoft Windows operating systems.

What is new in this release:

  • Fixed powf/expf/exp2f/logf/log2f performance regression
  • Added support for Arm Cortex-M33 without DSP via -mcpu=cortex-m33+nodsp
  • Added Armv8-R multilib mappings
  • Fix build requirements for GDB tui support
  • Enabled C99 IO format specifier in newlib
  • Fixed cmse_nonsecure_caller Armv8-M Security Extension intrinsic
  • Fix crash in __builtin_arm_set_fpscr GCC builtin
  • LTO bug https://bugs.launchpad.net/gcc-arm-embedded/+bug/1747966 was fixed in previous release. Release note updated to reflect the change.
  • Fixed issue with building libgcc's cmse.c without headers
  • Fixed issue with arm_cmse.h C99 compatibility

What is new in version 7-2017-q4:

  • Armv8-R and Cortex-R52 support.
  • Fix for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69866
  • GDB built with C++ enabled for Mac OS X

What is new in version 6.2:

  • Features:
  • All GCC 6 features, plus latest mainline features:
  • Full ARMv8-M support including atomics and Security Extensions
  • ARM PURECODE support for ARMv7-M and ARMv8-M Baseline and Mainline
  • Co-processor intrinsics support
  • Cortex-M23 and Cortex-M33 support
  • -mthumb optional for Cortex-M devices
  • Support for OS-retargeting of locking routines in newlib
  • Advanced SIMD-optimized memchr implementation in newlib
  • Enable setting options for Windows installer on command line
  • Important changes in 6 update 2 release:
  • GCC incorrectly assumes Cortex-r[578] have 64-bit single-copy atomic LDRD https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80082
  • LDR pseudo-op generates MOVS https://bugs.launchpad.net/gcc-arm-embedded/+bug/1682620
  • Fixed FPSCR getter and setter builtins
  • SG import libraries that were created as executable now fixed to relocatable
  • Enable setting options for Windows installer on command line
  • PURECODE support enabled for ARMv8-M.Baseline
  • Advanced SIMD-optimized memchr implementation in newlib

What is new in version 5.4:

  • New Features:
  • ARMv8-M Baseline and Mainline beta support:
  • ARMv8-M Baseline atomics support
  • ARM PureCode support
  • Thumb-2 long branch veneers
  • Important bugs fixed in 5 update 3 release:
  • Removed MSP_S and PSP_S MRS/MSR special registers
  • Fixed Thumb version detection in veneer generation
  • Fixed documentation about newlib-nano in release.txt

What is new in version 5.3:

  • Features:
  • All GCC 5 features, plus latest mainline features:
  • Cortex-R8 support
  • Cortex-M7 performance tuning
  • optimization of manual little endian and big endian loads
  • improved jump threading removing the need for -ftree-switch-shortcut
  • ARMv8-M Baseline and Mainline alpha support:
  • atomics not included for ARMv8-M Baseline
  • ARMv8-M Security Extensions Alpha support
  • Thumb-1 library optimizations:
  • https://gcc.gnu.org/ml/gcc-patches/2015-10/msg01282.html
  • CRC optimization:
  • https://gcc.gnu.org/ml/gcc-patches/2015-11/msg02046.html
  • Smaller terminate handler for newlib-nano

What is new in version 5.2:

  • All GCC 5 features, plus latest mainline features:
  • Cortex-M7 performance tuning
  • optimization of manual little endian and big endian loads
  • improved jump threading removing the need for -ftree-switch-shortcut
  • ARMv8-M Baseline and Mainline alpha support:
  • atomics not included for ARMv8-M Baseline
  • ARMv8-M Security Extensions only supported for assembling and basic linking
  • Thumb-1 library optimizations
  • https://gcc.gnu.org/ml/gcc-patches/2015-10/msg01282.html
  • CRC optimization
  • https://gcc.gnu.org/ml/gcc-patches/2015-11/msg02046.html

What is new in version 4.9 Update 3:

  • Features:
  • All GCC 4.9 features, plus latest mainline features
  • Cortex-M7 support
  • Small multiply support with options:
  • . -mcpu=cortex-m1.small-multiply
  • . -mcpu=cortex-m0.small-multiply
  • . -mcpu=cortex-m0plus.small-multiply
  • Dedicated multilib for Cortex-M7
  • - cortex-m7
  • - cortex-m7/fpu/fpv5-d16
  • - cortex-m7/fpu/fpv5-sp-d16
  • - cortex-m7/softfp/fpv5-d16
  • - cortex-m7/softfp/fpv5-sp-d16
  • Define aeabi_memcpy and aeabi_memcpy4 routines in newlib.
  • Define aeabi_memmove, aeabi_memset and aeabi_memclr routines in newlib.
  • Thumb-1 library optimizations.
  • Additional code size optimizations.
  • Add gdb python build (arm-none-eabi-gdb-py).
  • Object file without attribute section can be linked with any others.
  • The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame will be deprecated in gcc 5.0, hence recommend to avoid them.
  • Important bugs fixed in 4.9 update 3 release:
  • Newlib format specifier mismatch fix. https://answers.launchpad.net/gcc-arm-embedded/+question/269083
  • Newlib macro mismatch fix. https://answers.launchpad.net/gcc-arm-embedded/+question/269177
  • Assembler encoding bug fix. https://sourceware.org/ml/binutils/2015-08/msg00028.html

What is new in version 4.9 Update 2:

  • Features:
  • All GCC 4.9 features, plus latest mainline features
  • Cortex-M7 support
  • Small multiply support with options:
  • -mcpu=cortex-m1.small-multiply
  • -mcpu=cortex-m0.small-multiply
  • -mcpu=cortex-m0plus.small-multiply
  • Dedicated multilib for Cortex-M7:
  • cortex-m7
  • cortex-m7/fpu/fpv5-d16
  • cortex-m7/fpu/fpv5-sp-d16
  • cortex-m7/softfp/fpv5-d16
  • cortex-m7/softfp/fpv5-sp-d16
  • Define aeabi_memcpy and aeabi_memcpy4 routines in newlib.
  • Define aeabi_memmove, aeabi_memset and aeabi_memclr routines in newlib.
  • Thumb-1 library optimizations.
  • Additional code size optimizations.
  • Add gdb python build (arm-none-eabi-gdb-py).
  • Object file without attribute section can be linked with any others.
  • The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame will be deprecated in gcc 5.0, hence recommend to avoid them.
  • Important bugs fixed in 4.9 update 2 release:
  • Updated some inline assembly code in Newlib to work with old targets https://www.sourceware.org/ml/newlib/2015/msg00386.html
  • Avoid wastage caused by section size promotion https://answers.launchpad.net/gcc-arm-embedded/+question/262160
  • Local register variables don't work correctly with inline asm operands https://bugs.launchpad.net/gcc-arm-embedded/+bug/1411655

What is new in version 4.9 Update 1:

  • Features:
  • All GCC 4.9 features, plus latest mainline features
  • - Cortex-M7 support
  • - Small multiply support with options:
  • . -mcpu=cortex-m1.small-multiply
  • . -mcpu=cortex-m0.small-multiply
  • . -mcpu=cortex-m0plus.small-multiply
  • Dedicated multilib for Cortex-M7
  • - cortex-m7
  • - cortex-m7/fpu/fpv5-d16
  • - cortex-m7/fpu/fpv5-sp-d16
  • - cortex-m7/softfp/fpv5-d16
  • - cortex-m7/softfp/fpv5-sp-d16
  • Define aeabi_memcpy and aeabi_memcpy4 routines in newlib.
  • Define aeabi_memmove, aeabi_memset and aeabi_memclr routines in newlib.
  • Thumb-1 library optimizations.
  • Additional code size optimizations.
  • Add gdb python build (arm-none-eabi-gdb-py).
  • Object file without attribute section can be linked with any others.
  • The options -mapcs, -mapcs-frame, -mtpcs-frame and -mtpcs-leaf-frame will be deprecated in gcc 5.0, hence recommend to avoid them.
  • Important bugs fixed in 4.9 update 1 release:
  • LD backport to keep zero length section in final axf file
  • Fix GDB crash caused by discarding the grouped debug sections
  • Add a Thumb1 insn pattern to legalize the instruction that moves pc to low register
  • Update GCC to generate Tag_ABI_HardFP_use per the latest EABI doc
  • Live high register not saved in function prolog with -Os
  • --var-info-path-expression fails for nested structs

What is new in version 4.9:

  • Branch to symbol defined in linker script http://sourceware.org/bugzilla/show_bug.cgi?id=15302
  • GDB is upgraded to 7.6 to better support dwarf-3 and later standard https://answers.launchpad.net/gcc-arm-embedded/+question/234131 https://bugs.launchpad.net/gcc-arm-embedded/+bug/1248981
  • ICE when use high register as PIC base register for thumb-1 target

What is new in version 4.7 Update 3:

  • Crash when compile fixed-point app with LTO https://answers.launchpad.net/gcc-arm-embedded/+question/235582
  • Branch to target specified by a linker script symbol https://sourceware.org/bugzilla/show_bug.cgi?id=15302
  • Windows hosted gdb hang at some breakpoint https://bugs.launchpad.net/gcc-arm-embedded/+bug/1197615
  • Nano missing reference to _mallopt_r https://mbed.org/forum/mbed/topic/2701/?page=3#comment-22549

What is new in version 4.7 Update 2:

  • Upgrade doc/*.texi to the latest texinfo package https://answers.launchpad.net/gcc-arm-embedded/+question/227685
  • Fix ICE with -mtune option https://answers.launchpad.net/gcc-arm-embedded/+question/227667
  • Fix --debug option in build script https://answers.launchpad.net/gcc-arm-embedded/+question/229127
  • Fix unnecessary lr save in thumb1 leaf function

What is new in version 4.7 Update 1:

  • This update release fixes a couple of issues found in 4.7 major:
  • Mac OS host version has python dependence
  • LTO failure when installed in directory with space in path name http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50293
  • Load address of data sections containing aligned data http://sourceware.org/bugzilla/show_bug.cgi?id=15222
  • libnosys doesn't check stack overflow https://answers.launchpad.net/gcc-arm-embedded/+question/218972
  • librdimon.a doesn't match newlib-nano
  • It also gets the build configuration adjusted to enable:
  • Basic Cortex-A profile multilib
  • LTO (Link Time Optimization)

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