Add support to indicate size and end of assembly functions
In order for the symbol table in the ELF file to contain the size of
functions written in assembly, it is necessary to report it to the
assembler using the .size directive.
To fulfil the above requirements, this patch introduces an 'endfunc'
macro which contains the .endfunc and .size directives. It also adds
a .func directive to the 'func' assembler macro.
The .func/.endfunc have been used so the assembler can fail if
endfunc is omitted.
Fixes ARM-Software/tf-issues#295
Change-Id: If8cb331b03d7f38fe7e3694d4de26f1075b278fc
Signed-off-by: Kévin Petit <kevin.petit@arm.com>
diff --git a/lib/aarch64/cache_helpers.S b/lib/aarch64/cache_helpers.S
index dc60102..0dbab1b 100644
--- a/lib/aarch64/cache_helpers.S
+++ b/lib/aarch64/cache_helpers.S
@@ -56,6 +56,7 @@
b.lo flush_loop
dsb sy
ret
+endfunc flush_dcache_range
/* ------------------------------------------
@@ -75,6 +76,7 @@
b.lo inv_loop
dsb sy
ret
+endfunc inv_dcache_range
/* ---------------------------------------------------------------
@@ -154,6 +156,7 @@
isb
exit:
ret
+endfunc do_dcsw_op
dcsw_loop_table:
dcsw_loop isw
@@ -163,10 +166,12 @@
func dcsw_op_louis
dcsw_op #LOUIS_SHIFT, #CLIDR_FIELD_WIDTH, #LEVEL_SHIFT
+endfunc dcsw_op_louis
func dcsw_op_all
dcsw_op #LOC_SHIFT, #CLIDR_FIELD_WIDTH, #LEVEL_SHIFT
+endfunc dcsw_op_all
/* ---------------------------------------------------------------
* Helper macro for data cache operations by set/way for the
@@ -189,6 +194,7 @@
*/
func dcsw_op_level1
dcsw_op_level #(1 << LEVEL_SHIFT)
+endfunc dcsw_op_level1
/* ---------------------------------------------------------------
* Data cache operations by set/way for level 2 cache
@@ -199,6 +205,7 @@
*/
func dcsw_op_level2
dcsw_op_level #(2 << LEVEL_SHIFT)
+endfunc dcsw_op_level2
/* ---------------------------------------------------------------
* Data cache operations by set/way for level 3 cache
@@ -209,3 +216,4 @@
*/
func dcsw_op_level3
dcsw_op_level #(3 << LEVEL_SHIFT)
+endfunc dcsw_op_level3