Christopher Collins created MYNEWT-499:
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Summary: newt - APP_NAME value ambiguous for split images
Key: MYNEWT-499
URL: https://issues.apache.org/jira/browse/MYNEWT-499
Project: Mynewt
Issue Type: Bug
Components: Newt
Reporter: Christopher Collins
Assignee: Sterling Hughes
Newt automatically creates a few macros on the command line when it builds a
target:
* {{ARCH_<arch-name>}}
* {{ARCH_NAME="<arch-name>"}}
* {{APP_<arch-name>}}
* {{APP_NAME="<arch-name>"}}
* {{BSP_<arch-name>}}
* {{BSP_NAME="<arch-name>"}}
There is a problem with the two APP defines. A split image consists of two
apps (the "loader" and the "app"), so there is not a single correct value to
specify during compilation.
There are two issues here:
* Code cannot rely on consistent values for the APP defines when it is part of
a split image
* Newt performs unnecessary compiling and linking operations for repeat builds
of split targets. This is because the command-line invocation changes between
builds, as the APP name is not consistent.
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