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| author | Simon Glass <sjg@chromium.org> | 2015-03-25 12:21:49 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:18 -0600 |
| commit | 72538f4c3ec6a48a32e9798684cd238310e682f2 (patch) | |
| tree | b7b9b837e1f7da641cbf8a1e99369a19d19ed939 /include | |
| parent | 63c9729a1306ee3fed54923f53b20ce769884a81 (diff) | |
| download | u-boot-imx-72538f4c3ec6a48a32e9798684cd238310e682f2.zip u-boot-imx-72538f4c3ec6a48a32e9798684cd238310e682f2.tar.gz u-boot-imx-72538f4c3ec6a48a32e9798684cd238310e682f2.tar.bz2 | |
linker_lists: Add a function to access a linker list entry
Once declared, you cannot access a linker_list entry since you do not have
a symbol name for it. Add llsym() macro to provide this. This avoids
searching for the symbol at run-time based on name.
An example usage is to declare a driver with U_BOOT_DRIVER(), then obtain
a pointer to that driver later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linker_lists.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linker_lists.h b/include/linker_lists.h index 940c871..b22d169 100644 --- a/include/linker_lists.h +++ b/include/linker_lists.h @@ -103,6 +103,16 @@ */ /** + * ll_sym() - Access a linker-generated array entry + * @_type: Data type of the entry + * @_name: Name of the entry + * @_list: name of the list. Should contain only characters allowed + * in a C variable name! + */ +#define llsym(_type, _name, _list) \ + ((_type *)&_u_boot_list_2_##_list##_2_##_name) + +/** * ll_entry_declare() - Declare linker-generated array entry * @_type: Data type of the entry * @_name: Name of the entry |