mips64: use ALIAS() macro for aliases

arch/mips64/getcontext.S

@@ -14,6 +14,8 @@ LOCALSZ = 1
 
 #include "defs.h"
 
+ALIAS(getcontext, __getcontext)
+
 FUNC(__getcontext)
 	/* copy $gp, $sp, $fp to temporary registers so we don't clobber them */
 	move	$a2, $gp
@@ -42,6 +44,3 @@ FUNC(__getcontext)
 
 	jr	$ra
 END(__getcontext)
-
-.weak getcontext;
-getcontext = __getcontext;

arch/mips64/makecontext.S

@@ -26,6 +26,8 @@ A7_OFF = FRAMESZ - (1 * REG_SZ)
  * assembly rather than C.  Annoying, that...
  */
 
+ALIAS(makecontext, __makecontext)
+
 FUNC(__makecontext)
 	PUSH_FRAME(__makecontext)
 
@@ -102,7 +104,3 @@ no_more_arguments:
 
 	jr	$ra
 END(__makecontext)
-
-
-.weak makecontext
-makecontext = __makecontext;

arch/mips64/setcontext.S

@@ -14,6 +14,8 @@ LOCALSZ = 1
 
 #include "defs.h"
 
+ALIAS(setcontext, __setcontext)
+
 FUNC(__setcontext)
 	PUSH_FRAME(__setcontext)
 
@@ -50,6 +52,3 @@ FUNC(__setcontext)
 
 	POP_FRAME(__setcontext)
 END(__setcontext)
-
-.weak setcontext;
-setcontext = __setcontext;

arch/mips64/swapcontext.S

@@ -16,6 +16,8 @@ LOCALSZ = 2
 
 A1_OFFSET = FRAMESZ - (1 * REG_SZ)
 
+ALIAS(swapcontext, __swapcontext)
+
 FUNC(__swapcontext)
 	/* copy $gp, $sp, $fp to temporary registers so we don't clobber them */
 	move	$a2, $gp
@@ -82,6 +84,3 @@ fail:
 	move	$v0, $zero
 	jalr	$t9
 END(__swapcontext)
-
-.weak swapcontext;
-swapcontext = __swapcontext;