diff options
| -rw-r--r-- | bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml b/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml index 6b49d7fa8b..421364c2cf 100644 --- a/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml +++ b/bitbake/doc/bitbake-user-manual/bitbake-user-manual-metadata.xml | |||
| @@ -799,17 +799,15 @@ | |||
| 799 | <title>Key Expansion</title> | 799 | <title>Key Expansion</title> |
| 800 | 800 | ||
| 801 | <para> | 801 | <para> |
| 802 | Key expansion happens when the BitBake datastore is finalized | 802 | Key expansion happens when the BitBake datastore is finalized. |
| 803 | just before BitBake expands overrides. | ||
| 804 | To better understand this, consider the following example: | 803 | To better understand this, consider the following example: |
| 805 | <literallayout class='monospaced'> | 804 | <literallayout class='monospaced'> |
| 806 | A${B} = "X" | 805 | A${B} = "X" |
| 807 | B = "2" | 806 | B = "2" |
| 808 | A2 = "Y" | 807 | A2 = "Y" |
| 809 | </literallayout> | 808 | </literallayout> |
| 810 | In this case, after all the parsing is complete, and | 809 | In this case, after all the parsing is complete, |
| 811 | before any overrides are handled, BitBake expands | 810 | BitBake expands <filename>${B}</filename> into "2". |
| 812 | <filename>${B}</filename> into "2". | ||
| 813 | This expansion causes <filename>A2</filename>, which was | 811 | This expansion causes <filename>A2</filename>, which was |
| 814 | set to "Y" before the expansion, to become "X". | 812 | set to "Y" before the expansion, to become "X". |
| 815 | </para> | 813 | </para> |