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/locks/exclusive/spinlock.S b/lib/locks/exclusive/spinlock.S
index 5eae2b0..772f14e 100644
--- a/lib/locks/exclusive/spinlock.S
+++ b/lib/locks/exclusive/spinlock.S
@@ -43,8 +43,10 @@
stxr w1, w2, [x0]
cbnz w1, l2
ret
+endfunc spin_lock
func spin_unlock
stlr wzr, [x0]
ret
+endfunc spin_unlock