Unified sysroot: kill arch-specific include dirs.
<machine/asm.h> was internal use only.
<machine/fenv.h> is quite large, but can live in <bits/...>.
<machine/regdef.h> is trivially replaced by saying $x instead of x in
our assembler.
<machine/setjmp.h> is trivially inlined into <setjmp.h>.
<sgidefs.h> is unused.
Bug: N/A
Test: builds
Change-Id: Id05dbab43a2f9537486efb8f27a5ef167b055815
diff --git a/libc/include/bits/fenv_arm64.h b/libc/include/bits/fenv_arm64.h
new file mode 100644
index 0000000..67f0fb4
--- /dev/null
+++ b/libc/include/bits/fenv_arm64.h
@@ -0,0 +1,102 @@
+/*-
+ * Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/lib/msun/arm/fenv.h,v 1.5 2005/03/16 19:03:45 das Exp $
+ */
+
+/*
+ * In ARMv8, AArch64 state, floating-point operation is controlled by:
+ *
+ * * FPCR - 32Bit Floating-Point Control Register:
+ * * [31:27] - Reserved, Res0;
+ * * [26] - AHP, Alternative half-precision control bit;
+ * * [25] - DN, Default NaN mode control bit;
+ * * [24] - FZ, Flush-to-zero mode control bit;
+ * * [23:22] - RMode, Rounding Mode control field:
+ * * 00 - Round to Nearest (RN) mode;
+ * * 01 - Round towards Plus Infinity (RP) mode;
+ * * 10 - Round towards Minus Infinity (RM) mode;
+ * * 11 - Round towards Zero (RZ) mode.
+ * * [21:20] - Stride, ignored during AArch64 execution;
+ * * [19] - Reserved, Res0;
+ * * [18:16] - Len, ignored during AArch64 execution;
+ * * [15] - IDE, Input Denormal exception trap;
+ * * [14:13] - Reserved, Res0;
+ * * [12] - IXE, Inexact exception trap;
+ * * [11] - UFE, Underflow exception trap;
+ * * [10] - OFE, Overflow exception trap;
+ * * [9] - DZE, Division by Zero exception;
+ * * [8] - IOE, Invalid Operation exception;
+ * * [7:0] - Reserved, Res0.
+ *
+ * * FPSR - 32Bit Floating-Point Status Register:
+ * * [31] - N, Negative condition flag for AArch32 (AArch64 sets PSTATE.N);
+ * * [30] - Z, Zero condition flag for AArch32 (AArch64 sets PSTATE.Z);
+ * * [29] - C, Carry conditon flag for AArch32 (AArch64 sets PSTATE.C);
+ * * [28] - V, Overflow conditon flag for AArch32 (AArch64 sets PSTATE.V);
+ * * [27] - QC, Cumulative saturation bit, Advanced SIMD only;
+ * * [26:8] - Reserved, Res0;
+ * * [7] - IDC, Input Denormal cumulative exception;
+ * * [6:5] - Reserved, Res0;
+ * * [4] - IXC, Inexact cumulative exception;
+ * * [3] - UFC, Underflow cumulative exception;
+ * * [2] - OFC, Overflow cumulative exception;
+ * * [1] - DZC, Division by Zero cumulative exception;
+ * * [0] - IOC, Invalid Operation cumulative exception.
+ */
+
+#ifndef _BITS_FENV_ARM64_H_
+#define _BITS_FENV_ARM64_H_
+
+#include <sys/types.h>
+
+__BEGIN_DECLS
+
+typedef struct {
+ __uint32_t __control; /* FPCR, Floating-point Control Register */
+ __uint32_t __status; /* FPSR, Floating-point Status Register */
+} fenv_t;
+
+typedef __uint32_t fexcept_t;
+
+/* Exception flags. */
+#define FE_INVALID 0x01
+#define FE_DIVBYZERO 0x02
+#define FE_OVERFLOW 0x04
+#define FE_UNDERFLOW 0x08
+#define FE_INEXACT 0x10
+#define FE_DENORMAL 0x80
+#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | FE_INVALID | \
+ FE_OVERFLOW | FE_UNDERFLOW | FE_DENORMAL)
+
+/* Rounding modes. */
+#define FE_TONEAREST 0x0
+#define FE_UPWARD 0x1
+#define FE_DOWNWARD 0x2
+#define FE_TOWARDZERO 0x3
+
+__END_DECLS
+
+#endif