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The Linaro Toolchain Working Group (TCWG) is pleased to announce the 2018.05 stable Release of the Linaro GCC 7 source package.

The GCC 7 series introduced an ABI change for ARM targets by fixing a bug (present since GCC 5, see link below) that affects conformance to the procedure call standard (AAPCS). The bug affects some C++ code where class objects are passed by value to functions and could result in incorrect or inconsistent code being generated. If the option -Wpsabi is enabled (on by default) the compiler will emit a diagnostic note for code that might be affected by this ABI change.

For an explanation of the changes please see the following website:

This stable1 Release is based on FSF GCC 7.3.1+svn259627 and includes performance improvements and bug fixes backported from mainline GCC. This Release is based on Linaro Snapshot GCC 7.3-2018.05-rc1.

Changes in this stable GCC source package Release include:

  • Updates merged from FSF GCC 7.3.1+svn259627

Feedback and Support

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  • Linaro Toolchain Development mailing list
  • Linaro Toolchain IRC channel on at #linaro-tcwg


1 Linaro ‘stable’ source archive releases are Linaro packaged versions of the latest FSF GCC release. The Linaro ‘maintenance’ source archive releases are Linaro packaged versions of the previous year’s FSF GCC release.