runtime: fix arm build, slightly.

R=r
CC=golang-dev
https://golang.org/cl/842042

diff --git a/src/pkg/runtime/arm/asm.s b/src/pkg/runtime/arm/asm.s
index 6be266734d19283c39b68177585884241734f558..49610451a6f73c9d4f01eea74db5e3321f5fcaf9 100644 (file)
--- a/src/pkg/runtime/arm/asm.s
+++ b/src/pkg/runtime/arm/asm.s
@@ -270,7 +270,7 @@ TEXT callString(SB), 7, $24
        MOVW    arg+4(FP), R1
        MOVW    f+0(FP), R0
        MOVW    R1, 0(SP)
-       BL      R0
+       BL      (R0)
        MOVW    4(SP), R1
        MOVW    8(SP), R2
        MOVW    12(SP), R3