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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-07-07 15:05:21 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-07-14 09:21:46 +0200 |
| commit | b6a1d396b6984f5d11dfdcaf8efba5a7fa405ed2 (patch) | |
| tree | 3f672fe59be14f39b0a470f67eaaf26653ee0390 /user/migration/v5-to-v6.rst | |
| parent | eng: fix typo in coding-file-hdr.rst (diff) | |
| download | rtems-docs-b6a1d396b6984f5d11dfdcaf8efba5a7fa405ed2.tar.bz2 | |
user: Add v5 to v6 migration help
Diffstat (limited to '')
| -rw-r--r-- | user/migration/v5-to-v6.rst | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/user/migration/v5-to-v6.rst b/user/migration/v5-to-v6.rst new file mode 100644 index 0000000..5997057 --- /dev/null +++ b/user/migration/v5-to-v6.rst @@ -0,0 +1,20 @@ +.. SPDX-License-Identifier: CC-BY-SA-4.0 + +.. Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) + +.. _Migration_5_to_6: + +RTEMS 5 to RTEMS 6 +================== + +This section provides helpful information when migrating from RTEMS 5 to +RTEMS 6. + +Update to GCC 10 +---------------- + +The tool suite for RTEMS 6 uses GCC 10. GCC 10 enables ``-fno-common`` by +default. Code bases which never used this option before may observe now +multiple definition linker errors. For example, if global variables are +declared and defined in header files (usually a missing ``extern`` in the header +file). |