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https://community.arm.com/developer/tools-software/tools/b/tools-software-ides-blog/posts/arm-cortex-a-processors-and-gcc-command-lines
Finally, a Cortex-A9 processor operating in an environment where the floating-point/NEON register set cannot be used at all (for example, because it's in the middle of an interrupt handler and the floating point context is reserved for user state). arm-gcc -O3 -mcpu=cortex-a9 -mfloat-abi=soft -c -o myfile.o myfile.c
https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
Using the GNU Compiler Collection (GCC): ARM Options. ... Architectures not mentioned do not support any extensions. ... For example, ‘cortex-a9’ can be found in three major configurations: integer only, with just a floating-point unit or with floating-point and Advanced SIMD.
http://gcc.gnu.org/ml/gcc-patches/2008-09/msg00107.html
The attached patch adds support for the ARM Cortex-A9 CPU. The interger core is out of order, so we only need to schedule for the floating point unit. In addition there are a couple or tweaks to the RTX costs to accommodate the characteristics of register shift instructions.
https://www.mathworks.com/hardware-support/arm-cortex-a.html
Embedded Coder provides additional support for ARM Cortex-A processors by generating processor-optimized code using Ne10 project libraries (Ne10) with the GNU Compiler Collection (GCC) compiler.. You can also use Embedded Coder to create your own ARM-specific customizations for additional processors or compilers using published APIs and reference examples.
https://community.arm.com/developer/tools-software/tools/f/arm-compilers-forum/13647/cross-compiling-for-cortex-a9-with-gcc
However, in the Cortex-M/R toolchain documentation, it is specified that Cortex-A targets are accepted too, so this confuses me: why is there another toolchain for Cortex-A devices? In my case, I am trying to build a baremetal application for a Cortex-A9 using a Makefile that invokes the …
https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm
GNU Arm Embedded Toolchain Pre-built GNU toolchain for Arm Cortex-M and Cortex-R processors . The GNU Arm Embedded toolchain contains integrated and validated packages featuring the Arm Embedded GCC compiler, libraries and other GNU tools necessary for bare-metal software development on devices based on the Arm Cortex-M and Cortex-R processors.
http://processors.wiki.ti.com/index.php/SYS/BIOS_with_GCC_(CortexA)
SYS/BIOS 6.35.00.20 product release, combined with XDC Tools 3.24.06.63 introduced support for building SYS/BIOS and SYS/BIOS applications with the GNU compiler (GCC) toolchain for ARM Cortex-A8 (AM35xx and TI81xx devices) and Cortex-A15 targets (DRA7xx, TDA2xx and OMAP54xx devices).
https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads/6-2017-q1-update
The GNU Embedded Toolchain for Arm is a ready-to-use, open source suite of tools for C, C++ and Assembly programming targeting Arm Cortex-M and Cortex-R family of processors. It includes the GNU Compiler (GCC) and is available free of charge directly from Arm for embedded software development on Windows, Linux and Mac OS X operating systems.
http://gnutoolchains.com/arm-eabi/
OpenOCD is not included in the toolchain and is available as a separate download.. Recommended Tools. For optimal development experience, try VisualGDB - our Visual Studio extension for advanced cross-platform development that supports automatic tool and driver configuration, intuitive register viewer, live variables, profiler, stack and memory layout analyzer and much more:
http://infocenter.arm.com/help/topic/com.arm.doc.dui0491g/CIHGEBDH.html
--cpu=name This option enables code generation for the selected ARM processor or architecture. Syntax --cpu=name Where:name is the name of a processor or architecture. If name is the name of a processor, enter it as shown on ARM data sheets, for example, ARM7TDMI, ARM1176JZ-S, MPCore. If name is
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