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| author | Michael Brown <mcb30@ipxe.org> | 2022-02-14 13:13:37 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2022-02-14 13:21:09 +0000 |
| commit | 1150321595c44acfac2b2c56590d4d7f1d2ad70c (patch) | |
| tree | c190091c416437feb53247945a47ae71695812d7 | |
| parent | 0bbd8967830097b9141945ba960e90339c230ccb (diff) | |
| download | ipxe-1150321595c44acfac2b2c56590d4d7f1d2ad70c.tar.gz | |
[tables] Add ability to declare static table start and end markers
The compound statement expression within __table_entries() prevents
the use of top-level declarations such as
static struct thing *things = table_start ( THINGS );
Define TABLE_START() and TABLE_END() macros that can be used as:
static TABLE_START ( things_start, THINGS );
static struct thing *things = things_start;
Signed-off-by: Michael Brown <mcb30@ipxe.org>
| -rw-r--r-- | src/include/ipxe/tables.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/include/ipxe/tables.h b/src/include/ipxe/tables.h index 28a87da96..de5b1f297 100644 --- a/src/include/ipxe/tables.h +++ b/src/include/ipxe/tables.h @@ -253,6 +253,17 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); __table_entries; } ) /** + * Declare start of linker table entries + * + * @v entries Start of entries + * @v table Linker table + * @v idx Sub-table index + */ +#define __TABLE_ENTRIES( entries, table, idx ) \ + __table_type ( table ) entries[0] \ + __table_entry ( table, idx ) + +/** * Get start of linker table * * @v table Linker table @@ -271,6 +282,14 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #define table_start( table ) __table_entries ( table, 00 ) /** + * Declare start of linker table + * + * @v start Start of linker table + * @v table Linker table + */ +#define TABLE_START( start, table ) __TABLE_ENTRIES ( start, table, 00 ) + +/** * Get end of linker table * * @v table Linker table @@ -289,6 +308,14 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #define table_end( table ) __table_entries ( table, 99 ) /** + * Declare end of linker table + * + * @v end End of linker table + * @v table Linker table + */ +#define TABLE_END( end, table ) __TABLE_ENTRIES ( end, table, 99 ) + +/** * Get number of entries in linker table * * @v table Linker table |