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Add option to enable LTO easily #5674

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merged 3 commits into from
May 2, 2019
Merged

Add option to enable LTO easily #5674

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Add option to enable LTO easily and disable features that cause compi…
drashna Apr 21, 2019
91bff91
Add documentation about LTO option
drashna Apr 21, 2019
ac30f17
Add to show_options
drashna Apr 21, 2019
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Add documentation about LTO option
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drashna committed Apr 21, 2019
commit 91bff910ddab4d3e26a83b1f1f19eddf6066c31a
2 changes: 2 additions & 0 deletions docs/config_options.md
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Expand Up @@ -330,6 +330,8 @@ Use these to enable or disable building certain features. The more you have enab
* Forces the keyboard to wait for a USB connection to be established before it starts up
* `NO_USB_STARTUP_CHECK`
* Disables usb suspend check after keyboard startup. Usually the keyboard waits for the host to wake it up before any tasks are performed. This is useful for split keyboards as one half will not get a wakeup call but must send commands to the master.
* `LINK_TIME_OPTIMIZATION_ENABLE`
= Enables Link Time Optimization (`LTO`) when compiling the keyboard. This makes the process take longer, but can significantly reduce the compiled size (and since the firmware is small, the added time is not noticable). However, this will automatically disable the old Macros and Functions features automatically, as these break when `LTO` is enabled. It does this by automatically defining `NO_ACTION_MACRO` and `NO_ACTION_FUNCTION`

## USB Endpoint Limitations

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