Add __ldtoa(), a wrapper around gdtoa() to make it look like dtoa().

In support of this, add some MD macros to assist in converting long
doubles to the format expected by gdtoa().

Reviewed by:	silence on standards@

1 files changed, 8 insertions, 0 deletions

diff --git a/lib/libc/powerpc/_fpmath.h b/lib/libc/powerpc/_fpmath.h
index af2e9591dbd6..52129a4263f2 100644
--- a/lib/libc/powerpc/_fpmath.h
+++ b/lib/libc/powerpc/_fpmath.h
@@ -38,3 +38,11 @@ union IEEEl2bits {
 
 /* XXX does powerpc have a normalization bit? */
 #define	mask_nbit_l(u)	((void)0)
+#define	LDBL_IMPLICIT_NBIT
+
+#define	LDBL_TO_ARRAY32(u, a) do {			\
+	(a)[0] = (uint32_t)(u).bits.manl;		\
+	(a)[1] = (uint32_t)((u).bits.manl >> 32);      	\
+	(a)[2] = (uint32_t)(u).bits.manh;		\
+	(a)[3] = (uint32_t)((u).bits.manh >> 32);	\
+} while(0)