AArch64: Add initial support for AArch64
This is the first patch out of a series of patches that add support for
AArch64, the new 64bit execution state of the ARMv8 Architecture. The
patches add support for LP64 programming model.
The patch adds:
* "arch-aarch64" to the architecture directories.
* "arch-aarch64/include" - headers used by libc
* "arch-aarch64/bionic":
- crtbegin, crtend support;
- aarch64 specific syscall stubs;
- setjmp, clone, vfork assembly files.
Change-Id: If72b859f81928d03ad05d4ccfcb54c2f5dbf99a5
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
diff --git a/libc/arch-aarch64/include/machine/_types.h b/libc/arch-aarch64/include/machine/_types.h
new file mode 100644
index 0000000..0a462ab
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/_types.h
@@ -0,0 +1,111 @@
+/* $OpenBSD: _types.h,v 1.3 2006/02/14 18:12:58 miod Exp $ */
+
+/*-
+ * Copyright (c) 1990, 1993
+ * The Regents of the University of California. 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * @(#)types.h 8.3 (Berkeley) 1/5/94
+ * @(#)ansi.h 8.2 (Berkeley) 1/4/94
+ */
+
+#ifndef _AARCH64__TYPES_H_
+#define _AARCH64__TYPES_H_
+
+/* 7.18.1.1 Exact-width integer types */
+typedef __signed char __int8_t;
+typedef unsigned char __uint8_t;
+typedef short __int16_t;
+typedef unsigned short __uint16_t;
+typedef int __int32_t;
+typedef unsigned int __uint32_t;
+typedef long __int64_t;
+typedef unsigned long __uint64_t;
+
+/* 7.18.1.2 Minimum-width integer types */
+typedef __int8_t __int_least8_t;
+typedef __uint8_t __uint_least8_t;
+typedef __int16_t __int_least16_t;
+typedef __uint16_t __uint_least16_t;
+typedef __int32_t __int_least32_t;
+typedef __uint32_t __uint_least32_t;
+typedef __int64_t __int_least64_t;
+typedef __uint64_t __uint_least64_t;
+
+/* 7.18.1.3 Fastest minimum-width integer types */
+typedef __int32_t __int_fast8_t;
+typedef __uint32_t __uint_fast8_t;
+typedef __int32_t __int_fast16_t;
+typedef __uint32_t __uint_fast16_t;
+typedef __int32_t __int_fast32_t;
+typedef __uint32_t __uint_fast32_t;
+typedef __int64_t __int_fast64_t;
+typedef __uint64_t __uint_fast64_t;
+
+/* 7.18.1.4 Integer types capable of holding object pointers */
+typedef int __intptr_t;
+typedef unsigned int __uintptr_t;
+
+/* 7.18.1.5 Greatest-width integer types */
+typedef __int64_t __intmax_t;
+typedef __uint64_t __uintmax_t;
+
+/* Register size */
+typedef __int64_t __register_t;
+
+/* VM system types */
+typedef unsigned long __vaddr_t;
+typedef unsigned long __paddr_t;
+typedef unsigned long __vsize_t;
+typedef unsigned long __psize_t;
+
+/* Standard system types */
+typedef long __clock_t;
+typedef int __clockid_t;
+typedef double __double_t;
+typedef float __float_t;
+typedef long __ptrdiff_t;
+typedef long __time_t;
+typedef int __timer_t;
+#if defined(__GNUC__) && __GNUC__ >= 3
+typedef __builtin_va_list __va_list;
+#else
+typedef char * __va_list;
+#endif
+
+/* Wide character support types */
+#ifndef __cplusplus
+typedef int __wchar_t;
+#endif
+typedef int __wint_t;
+typedef int __rune_t;
+typedef void * __wctrans_t;
+typedef void * __wctype_t;
+
+#define _BYTE_ORDER _LITTLE_ENDIAN
+
+#endif /* _AARCH64__TYPES_H_ */
+
diff --git a/libc/arch-aarch64/include/machine/asm.h b/libc/arch-aarch64/include/machine/asm.h
new file mode 100644
index 0000000..3f8b908
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/asm.h
@@ -0,0 +1,128 @@
+/* $OpenBSD: asm.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */
+/* $NetBSD: asm.h,v 1.4 2001/07/16 05:43:32 matt Exp $ */
+
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * from: @(#)asm.h 5.5 (Berkeley) 5/7/91
+ */
+
+#ifndef _AARCH64_ASM_H_
+#define _AARCH64_ASM_H_
+
+/* TODO: Add cfi directives for creating/restoring FP */
+#ifdef __ELF__
+# define _C_LABEL(x) x
+#else
+# ifdef __STDC__
+# define _C_LABEL(x) _ ## x
+# else
+# define _C_LABEL(x) _/**/x
+# endif
+#endif
+#define _ASM_LABEL(x) x
+
+#ifdef __STDC__
+# define __CONCAT(x,y) x ## y
+# define __STRING(x) #x
+#else
+# define __CONCAT(x,y) x/**/y
+# define __STRING(x) "x"
+#endif
+
+#ifndef _ALIGN_TEXT
+# define _ALIGN_TEXT .align 0
+#endif
+
+#define _ASM_TYPE_FUNCTION %function
+#define _ASM_TYPE_OBJECT %object
+#define _ENTRY(x) \
+ .text; _ALIGN_TEXT; .globl x; .type x,_ASM_TYPE_FUNCTION; x: .cfi_startproc
+
+#define _ASM_SIZE(x) .size x, .-x;
+
+#define _END(x) \
+ .cfi_endproc; \
+ _ASM_SIZE(x)
+
+#define ENTRY(y) _ENTRY(_C_LABEL(y));
+#define ENTRY_NP(y) _ENTRY(_C_LABEL(y))
+#define END(y) _END(_C_LABEL(y))
+#define ASENTRY(y) _ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
+#define ASENTRY_NP(y) _ENTRY(_ASM_LABEL(y))
+#define ASEND(y) _END(_ASM_LABEL(y))
+
+#ifdef __ELF__
+#define ENTRY_PRIVATE(y) ENTRY(y); .hidden _C_LABEL(y)
+#else
+#define ENTRY_PRIVATE(y) ENTRY(y)
+#endif
+
+#define ASMSTR .asciz
+
+#if defined(__ELF__) && defined(PIC)
+#ifdef __STDC__
+#define PIC_SYM(x,y) x ## ( ## y ## )
+#else
+#define PIC_SYM(x,y) x/**/(/**/y/**/)
+#endif
+#else
+#define PIC_SYM(x,y) x
+#endif
+
+#ifdef __ELF__
+#define RCSID(x) .section ".ident"; .asciz x
+#else
+#define RCSID(x) .text; .asciz x
+#endif
+
+#ifdef __ELF__
+#define WEAK_ALIAS(alias,sym) \
+ .weak alias; \
+ alias = sym
+#endif
+
+#ifdef __STDC__
+#define WARN_REFERENCES(sym,msg) \
+ .stabs msg ## ,30,0,0,0 ; \
+ .stabs __STRING(_C_LABEL(sym)) ## ,1,0,0,0
+#elif defined(__ELF__)
+#define WARN_REFERENCES(sym,msg) \
+ .stabs msg,30,0,0,0 ; \
+ .stabs __STRING(sym),1,0,0,0
+#else
+#define WARN_REFERENCES(sym,msg) \
+ .stabs msg,30,0,0,0 ; \
+ .stabs __STRING(_/**/sym),1,0,0,0
+#endif /* __STDC__ */
+
+#endif /* _AARCH64_ASM_H_ */
+
diff --git a/libc/arch-aarch64/include/machine/elf_machdep.h b/libc/arch-aarch64/include/machine/elf_machdep.h
new file mode 100644
index 0000000..2bf8189
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/elf_machdep.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+
+#ifndef _AARCH64_ELF_MACHDEP_H_
+#define _AARCH64_ELF_MACHDEP_H_
+
+#if defined(__AARCH64EB__)
+#define ELF64_MACHDEP_ENDIANNESS ELFDATA2MSB
+#else
+#define ELF64_MACHDEP_ENDIANNESS ELFDATA2LSB
+#endif
+
+#define ELF64_MACHDEP_ID_CASES \
+ case EM_AARCH64: \
+ break;
+
+#define ELF64_MACHDEP_ID EM_AARCH64
+
+#define ARCH_ELFSIZE 64 /* MD native binary size */
+
+/* Null relocations */
+#define R_ARM_NONE 0
+#define R_AARCH64_NONE 256
+
+/* Static Data relocations */
+#define R_AARCH64_ABS64 257
+#define R_AARCH64_ABS32 258
+#define R_AARCH64_ABS16 259
+#define R_AARCH64_PREL64 260
+#define R_AARCH64_PREL32 261
+#define R_AARCH64_PREL16 262
+
+#define R_AARCH64_MOVW_UABS_G0 263
+#define R_AARCH64_MOVW_UABS_G0_NC 264
+#define R_AARCH64_MOVW_UABS_G1 265
+#define R_AARCH64_MOVW_UABS_G1_NC 266
+#define R_AARCH64_MOVW_UABS_G2 267
+#define R_AARCH64_MOVW_UABS_G2_NC 268
+#define R_AARCH64_MOVW_UABS_G3 269
+#define R_AARCH64_MOVW_SABS_G0 270
+#define R_AARCH64_MOVW_SABS_G1 271
+#define R_AARCH64_MOVW_SABS_G2 272
+
+/* PC-relative addresses */
+#define R_AARCH64_LD_PREL_LO19 273
+#define R_AARCH64_ADR_PREL_LO21 274
+#define R_AARCH64_ADR_PREL_PG_HI21 275
+#define R_AARCH64_ADR_PREL_PG_HI21_NC 276
+#define R_AARCH64_ADD_ABS_LO12_NC 277
+#define R_AARCH64_LDST8_ABS_LO12_NC 278
+
+/* Control-flow relocations */
+#define R_AARCH64_TSTBR14 279
+#define R_AARCH64_CONDBR19 280
+#define R_AARCH64_JUMP26 282
+#define R_AARCH64_CALL26 283
+#define R_AARCH64_LDST16_ABS_LO12_NC 284
+#define R_AARCH64_LDST32_ABS_LO12_NC 285
+#define R_AARCH64_LDST64_ABS_LO12_NC 286
+#define R_AARCH64_LDST128_ABS_LO12_NC 299
+
+#define R_AARCH64_MOVW_PREL_G0 287
+#define R_AARCH64_MOVW_PREL_G0_NC 288
+#define R_AARCH64_MOVW_PREL_G1 289
+#define R_AARCH64_MOVW_PREL_G1_NC 290
+#define R_AARCH64_MOVW_PREL_G2 291
+#define R_AARCH64_MOVW_PREL_G2_NC 292
+#define R_AARCH64_MOVW_PREL_G3 293
+
+/* Dynamic relocations */
+#define R_AARCH64_COPY 1024
+#define R_AARCH64_GLOB_DAT 1025 /* Create GOT entry. */
+#define R_AARCH64_JUMP_SLOT 1026 /* Create PLT entry. */
+#define R_AARCH64_RELATIVE 1027 /* Adjust by program base. */
+#define R_AARCH64_TLS_TPREL64 1030
+#define R_AARCH64_TLS_DTPREL32 1031
+
+#define R_TYPE(name) __CONCAT(R_AARCH64_,name)
+
+#endif /* _AARCH64_ELF_MACHDEP_H_ */
diff --git a/libc/arch-aarch64/include/machine/endian.h b/libc/arch-aarch64/include/machine/endian.h
new file mode 100644
index 0000000..87a038d
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/endian.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+
+#ifndef _AARCH64_ENDIAN_H_
+#define _AARCH64_ENDIAN_H_
+
+#include <sys/types.h>
+#include <sys/endian.h>
+
+#ifdef __GNUC__
+
+#define __swap16md(x) ({ \
+ register u_int16_t _x = (x); \
+ __asm volatile ("rev16 %0, %0" : "+r" (_x)); \
+ _x; \
+})
+
+/* Use GCC builtins */
+#define __swap32md(x) __builtin_bswap32(x)
+#define __swap64md(x) __builtin_bswap64(x)
+
+/* Tell sys/endian.h we have MD variants of the swap macros. */
+#define MD_SWAP
+
+#endif /* __GNUC__ */
+
+#if defined(__AARCH64EB__)
+#define _BYTE_ORDER _BIG_ENDIAN
+#else
+#define _BYTE_ORDER _LITTLE_ENDIAN
+#endif
+
+#endif /* _AARCH64_ENDIAN_H_ */
diff --git a/libc/arch-aarch64/include/machine/exec.h b/libc/arch-aarch64/include/machine/exec.h
new file mode 100644
index 0000000..7437626
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/exec.h
@@ -0,0 +1,50 @@
+/* $OpenBSD: exec.h,v 1.9 2003/04/17 03:42:14 drahn Exp $ */
+/* $NetBSD: exec.h,v 1.6 1994/10/27 04:16:05 cgd Exp $ */
+
+/*
+ * Copyright (c) 1993 Christopher G. Demetriou
+ * 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+#ifndef _AARCH64_EXEC_H_
+#define _AARCH64_EXEC_H_
+
+#define __LDPGSZ 4096
+
+#define NATIVE_EXEC_ELF
+
+#define ARCH_ELFSIZE 64
+
+#define ELF_TARG_CLASS ELFCLASS64 /* 64-bit objects */
+#define ELF_TARG_DATA ELFDATA2LSB
+#define ELF_TARG_MACH EM_AARCH64
+
+#define _NLIST_DO_AOUT
+#define _NLIST_DO_ELF
+
+#define _KERN_DO_AOUT
+#define _KERN_DO_ELF64
+
+#endif /* _AARCH64_EXEC_H_ */
diff --git a/libc/arch-aarch64/include/machine/ieee.h b/libc/arch-aarch64/include/machine/ieee.h
new file mode 100644
index 0000000..cf2c1fc
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/ieee.h
@@ -0,0 +1,191 @@
+/* $OpenBSD: ieee.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */
+/* $NetBSD: ieee.h,v 1.2 2001/02/21 17:43:50 bjh21 Exp $ */
+
+/*
+ * Copyright (c) 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley.
+ *
+ * All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Lawrence Berkeley Laboratory.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * @(#)ieee.h 8.1 (Berkeley) 6/11/93
+ */
+
+/*
+ * ieee.h defines the machine-dependent layout of the machine's IEEE
+ * floating point.
+ */
+
+/*
+ * Define the number of bits in each fraction and exponent.
+ *
+ * k k+1
+ * Note that 1.0 x 2 == 0.1 x 2 and that denorms are represented
+ *
+ * (-exp_bias+1)
+ * as fractions that look like 0.fffff x 2 . This means that
+ *
+ * -126
+ * the number 0.10000 x 2 , for instance, is the same as the normalized
+ *
+ * -127 -128
+ * float 1.0 x 2 . Thus, to represent 2 , we need one leading zero
+ *
+ * -129
+ * in the fraction; to represent 2 , we need two, and so on. This
+ *
+ * (-exp_bias-fracbits+1)
+ * implies that the smallest denormalized number is 2
+ *
+ * for whichever format we are talking about: for single precision, for
+ *
+ * -126 -149
+ * instance, we get .00000000000000000000001 x 2 , or 1.0 x 2 , and
+ *
+ * -149 == -127 - 23 + 1.
+ */
+
+/*
+ * The ARM has two sets of FP data formats. The FPA supports 32-bit, 64-bit
+ * and 96-bit IEEE formats, with the words in big-endian order. VFP supports
+ * 32-bin and 64-bit IEEE formats with the words in the CPU's native byte
+ * order.
+ *
+ * The FPA also has two packed decimal formats, but we ignore them here.
+ */
+
+#define SNG_EXPBITS 8
+#define SNG_FRACBITS 23
+
+#define DBL_EXPBITS 11
+#define DBL_FRACBITS 52
+
+#ifndef __VFP_FP__
+#define E80_EXPBITS 15
+#define E80_FRACBITS 64
+
+#define EXT_EXPBITS 15
+#define EXT_FRACBITS 112
+#endif
+
+struct ieee_single {
+ u_int sng_frac:23;
+ u_int sng_exponent:8;
+ u_int sng_sign:1;
+};
+
+#ifdef __VFP_FP__
+struct ieee_double {
+#ifdef __AARCH64EB__
+ u_int dbl_sign:1;
+ u_int dbl_exp:11;
+ u_int dbl_frach:20;
+ u_int dbl_fracl;
+#else /* !__AARCH64EB__ */
+ u_int dbl_fracl;
+ u_int dbl_frach:20;
+ u_int dbl_exp:11;
+ u_int dbl_sign:1;
+#endif /* !__AARCH64EB__ */
+};
+#else /* !__VFP_FP__ */
+struct ieee_double {
+ u_int dbl_frach:20;
+ u_int dbl_exp:11;
+ u_int dbl_sign:1;
+ u_int dbl_fracl;
+};
+
+union ieee_double_u {
+ double dblu_d;
+ struct ieee_double dblu_dbl;
+};
+
+
+struct ieee_e80 {
+ u_int e80_exp:15;
+ u_int e80_zero:16;
+ u_int e80_sign:1;
+ u_int e80_frach:31;
+ u_int e80_j:1;
+ u_int e80_fracl;
+};
+
+struct ieee_ext {
+ u_int ext_frach:16;
+ u_int ext_exp:15;
+ u_int ext_sign:1;
+ u_int ext_frachm;
+ u_int ext_fraclm;
+ u_int ext_fracl;
+};
+#endif /* !__VFP_FP__ */
+
+/*
+ * Floats whose exponent is in [1..INFNAN) (of whatever type) are
+ * `normal'. Floats whose exponent is INFNAN are either Inf or NaN.
+ * Floats whose exponent is zero are either zero (iff all fraction
+ * bits are zero) or subnormal values.
+ *
+ * A NaN is a `signalling NaN' if its QUIETNAN bit is clear in its
+ * high fraction; if the bit is set, it is a `quiet NaN'.
+ */
+#define SNG_EXP_INFNAN 255
+#define DBL_EXP_INFNAN 2047
+#ifndef __VFP_FP__
+#define E80_EXP_INFNAN 32767
+#define EXT_EXP_INFNAN 32767
+#endif /* !__VFP_FP__ */
+
+#if 0
+#define SNG_QUIETNAN (1 << 22)
+#define DBL_QUIETNAN (1 << 19)
+#ifndef __VFP_FP__
+#define E80_QUIETNAN (1 << 15)
+#define EXT_QUIETNAN (1 << 15)
+#endif /* !__VFP_FP__ */
+#endif
+
+/*
+ * Exponent biases.
+ */
+#define SNG_EXP_BIAS 127
+#define DBL_EXP_BIAS 1023
+#ifndef __VFP_FP__
+#define E80_EXP_BIAS 16383
+#define EXT_EXP_BIAS 16383
+#endif /* !__VFP_FP__ */
diff --git a/libc/arch-aarch64/include/machine/kernel.h b/libc/arch-aarch64/include/machine/kernel.h
new file mode 100644
index 0000000..070e704
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/kernel.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+
+#ifndef _ARCH_AARCH64_KERNEL_H
+#define _ARCH_AARCH64_KERNEL_H
+
+/* this file contains kernel-specific definitions that were optimized out of
+ our processed kernel headers, but still useful nonetheless... */
+
+typedef unsigned long __kernel_blkcnt_t;
+typedef unsigned long __kernel_blksize_t;
+
+/* these aren't really defined by the kernel headers though... */
+typedef unsigned long __kernel_fsblkcnt_t;
+typedef unsigned long __kernel_fsfilcnt_t;
+typedef unsigned int __kernel_id_t;
+
+#endif /* _ARCH_ARM_KERNEL_H */
+
diff --git a/libc/arch-aarch64/include/machine/limits.h b/libc/arch-aarch64/include/machine/limits.h
new file mode 100644
index 0000000..ecddb01
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/limits.h
@@ -0,0 +1,62 @@
+/* $OpenBSD: limits.h,v 1.3 2006/01/06 22:48:46 millert Exp $ */
+/* $NetBSD: limits.h,v 1.4 2003/04/28 23:16:18 bjh21 Exp $ */
+
+/*
+ * Copyright (c) 1988 The Regents of the University of California.
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ * from: @(#)limits.h 7.2 (Berkeley) 6/28/90
+ */
+
+#ifndef _AARCH64_LIMITS_H_
+#define _AARCH64_LIMITS_H_
+
+#include <sys/cdefs.h>
+
+#define MB_LEN_MAX 1 /* no multibyte characters */
+
+#define LONGLONG_BIT 64
+#define LONGLONG_MIN (-9223372036854775807LL-1)
+#define LONGLONG_MAX 9223372036854775807LL
+#define ULONGLONG_MAX 18446744073709551615ULL
+
+#ifndef SIZE_MAX
+#define SIZE_MAX ULONGLONG_MAX /* max value for a size_t */
+#endif
+#ifndef SSIZE_MAX
+#define SSIZE_MAX LONGLONG_MAX /* max value for a ssize_t */
+#endif
+
+#if __BSD_VISIBLE
+#define SIZE_T_MAX ULONG_MAX /* max value for a size_t (historic) */
+
+#define UQUAD_MAX 0xffffffffffffffffULL /* max unsigned quad */
+#define QUAD_MAX 0x7fffffffffffffffLL /* max signed quad */
+#define QUAD_MIN (-0x7fffffffffffffffLL-1) /* min signed quad */
+
+#endif /* __BSD_VISIBLE */
+#endif /* _AARCH64_LIMITS_H_ */
diff --git a/libc/arch-aarch64/include/machine/setjmp.h b/libc/arch-aarch64/include/machine/setjmp.h
new file mode 100644
index 0000000..1c237da
--- /dev/null
+++ b/libc/arch-aarch64/include/machine/setjmp.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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 COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ */
+
+/*
+ * machine/setjmp.h: machine dependent setjmp-related information.
+ */
+
+/* _JBLEN is the size of a jmp_buf in longs(64bit on AArch64) */
+#define _JBLEN 32
+
+/* According to AARCH64 PCS document we need to save the following
+ * registers:
+ *
+ * Core x19 - x30, sp (see section 5.1.1)
+ * VFP d8 - d15 (see section 5.1.2)
+ *
+ * NOTE: All the registers saved here will have 64bit vales (except FPSR).
+ * AAPCS mandates that the higher part of q registers does not need to
+ * be saveved by the callee.
+ */
+
+/* The structure of jmp_buf for AArch64:
+ *
+ * NOTE: _JBLEN is the size of jmp_buf in longs(64bit on AArch64)! The table
+ * below computes the offsets in words(32bit).
+ *
+ * word name description
+ * 0 magic magic number
+ * 1 sigmask signal mask (not used with _setjmp / _longjmp)
+ * 2 core_base base of core registers (x19-x30, sp)
+ * 28 float_base base of float registers (d8-d15)
+ * 44 reserved reserved entries (room to grow)
+ * 64
+ *
+ *
+ * NOTE: The instructions that load/store core/vfp registers expect 8-byte
+ * alignment. Contrary to the previous setjmp header for ARM we do not
+ * need to save status/control registers for VFP (it is not a
+ * requirement for setjmp).
+ */
+
+#define _JB_MAGIC 0
+#define _JB_SIGMASK (_JB_MAGIC+1)
+#define _JB_CORE_BASE (_JB_SIGMASK+1)
+#define _JB_FLOAT_BASE (_JB_CORE_BASE + (31-19+1)*2)
+
+#define _JB_MAGIC__SETJMP 0x53657200
+#define _JB_MAGIC_SETJMP 0x53657201