tinygo

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Commit Graph

Author	SHA1	Message	Date
Ayke van Laethem	33f76d1c2e	main: implement -ldflags="-X ..." This commit implements replacing some global variables with a different value, if the global variable has no initializer. For example, if you have: package main var version string you can replace the value with -ldflags="-X main.version=0.2". Right now it only works for uninitialized globals. The Go tooling also supports initialized globals (var version = "<undefined>") but that is a bit hard to combine with how initialized globals are currently implemented. The current implementation still allows caching package IR files while making sure the values don't end up in the build cache. This means compiling a program multiple times with different values will use the cached package each time, inserting the string value only late in the build process. Fixes #1045	4 years ago

Author

SHA1

Message

Date

Ayke van Laethem

33f76d1c2e

main: implement -ldflags="-X ..."

This commit implements replacing some global variables with a different
value, if the global variable has no initializer. For example, if you
have:

    package main

    var version string

you can replace the value with -ldflags="-X main.version=0.2".

Right now it only works for uninitialized globals. The Go tooling also
supports initialized globals (var version = "<undefined>") but that is a
bit hard to combine with how initialized globals are currently
implemented.

The current implementation still allows caching package IR files while
making sure the values don't end up in the build cache. This means
compiling a program multiple times with different values will use the
cached package each time, inserting the string value only late in the
build process.

Fixes #1045

4 years ago

1 Commits (c47cdfa66fe38cfad268615e093969bb136bae07)