Technical Support

GCC: SELECTING DIFFERENT GNU VERSIONS

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Information in this article applies to:

• GNU C Compiler for ARM All Versions
• µVision V3.21 and Later

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QUESTION

Is there a way to select a different version of a GNU ARM toolchain? What are the steps required? When I try to translate with the GNU ARM toolchain I get the following error messages:

--- Error: can't execute 'as'
--- Error: can't execute 'gcc'

What causes this error?

ANSWER

To use GNU toolchain variants, µVision V3.21 allows you to specify a GNU-Tool-Prefix. If this parameter is not configured properly, you may get the error message shown above.

To select the GNU toolchain open the dialog Project - Components, Environment, Books - Folders/Extensions.

Use GNU Tools selects the GNU development tools for a project. The setting Cygnus Folder specifies the path to the GNU installation folder. The GNU-Tool-Prefix allows you to use GNU toolchain variants.

Examples for the various GNU versions:

GNU V3.22 with uclib:

• GNU-Tool-Prefix: arm-uclibc-
• Cygnus Folder: C:\Cygnus

CodeSourcery G++ with new-lib:

• GNU-Tool-Prefix: arm-none-eabi-
• Cygnus Folder: C:\Program Files\CodeSourcery\Sourcery G++\

GNUARM V4 with standard library:

• GNU-Tool-Prefix: arm-elf-
• Cygnus Folder: C:\Program Files\GNUARM\

MORE INFORMATION

• Getting Started User's Guide for ARM, Development Tools, Select the Toolset

SEE ALSO

• CARM: CONVERTING PROGRAMS FROM GNU
• ARM: TARGET NOT CREATED - CAN'T EXECUTE MESSAGE

FORUM THREADS

The following Discussion Forum threads may provide information related to this topic.

• How can I use GNU compiler in Keil uVision3 evaluation version?
• Compiling of ARM (LPC2378) base code
• Target not created while using GNUARM
• Error : can't execute as
• GNUARM not working with uVision3
• Building GCC etc. for use with uVision3
• Update to the GNU toll chain
• GNU ARM --- Error: can't execute 'as'

Last Reviewed: Thursday, August 17, 2006

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