linker: Make alignment size for sw_isr_table configurable
sw_isr_table has two entries, an argument and an ISR function. The
comment on struct _isr_table_entry in include/sw_isr_table.h says that
"This allows a table entry to be loaded [...] with one ldmia
instruction, on ARM [...]". Some arch, e.g. SPARC, also has a double
word load instruction, "ldd", but the instruct must have address align
to double word or 8 bytes.
This commit makes the table alignment configurable. It allows each
architecture to specify it, if needed. The default value is 0 for no
alignment.
Signed-off-by: Yasushi SHOJI <y-shoji@ispace-inc.com>
3 files changed
