Support off64_t for Android build

Android NDK R8e does not provide ftruncate64, but bionic has the
assembler code to access kernel function. We borrowed those
ftruncate64.S files from android source code repository.  It turns out
that x86 asm.h in NDK R8e is also broken, so latest asm.h was also
borrowed.

5 files changed, 285 insertions, 0 deletions

diff --git a/src/android/README.rst b/src/android/README.rst
new file mode 100644
index 00000000..b9adab1e
--- /dev/null
+++ b/src/android/README.rst
@@ -0,0 +1,2 @@
+The files under this directory tree were copied from android source
+code repository.
diff --git a/src/android/arm-ftruncate64.S b/src/android/arm-ftruncate64.S
new file mode 100644
index 00000000..123897dc
--- /dev/null
+++ b/src/android/arm-ftruncate64.S
@@ -0,0 +1,15 @@
+/* autogenerated by gensyscalls.py */
+#include <asm/unistd.h>
+#include <linux/err.h>
+#include <machine/asm.h>
+
+ENTRY(ftruncate64)
+    mov     ip, r7
+    ldr     r7, =__NR_ftruncate64
+    swi     #0
+    mov     r7, ip
+    cmn     r0, #(MAX_ERRNO + 1)
+    bxls    lr
+    neg     r0, r0
+    b       __set_errno
+END(ftruncate64)
diff --git a/src/android/mips-ftruncate64.S b/src/android/mips-ftruncate64.S
new file mode 100644
index 00000000..398069c4
--- /dev/null
+++ b/src/android/mips-ftruncate64.S
@@ -0,0 +1,22 @@
+/* autogenerated by gensyscalls.py */
+#include <asm/unistd.h>
+    .text
+    .globl ftruncate64
+    .align 4
+    .ent ftruncate64
+
+ftruncate64:
+    .set noreorder
+    .cpload $t9
+    li $v0, __NR_ftruncate64
+    syscall
+    bnez $a3, 1f
+    move $a0, $v0
+    j $ra
+    nop
+1:
+    la $t9,__set_errno
+    j $t9
+    nop
+    .set reorder
+    .end ftruncate64
diff --git a/src/android/x86-asm.h b/src/android/x86-asm.h
new file mode 100644
index 00000000..2e8d298c
--- /dev/null
+++ b/src/android/x86-asm.h
@@ -0,0 +1,218 @@
+/*	$NetBSD: asm.h,v 1.40 2011/06/16 13:16:20 joerg 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.
+ *
+ *	@(#)asm.h	5.5 (Berkeley) 5/7/91
+ */
+
+#ifndef _I386_ASM_H_
+#define _I386_ASM_H_
+
+#ifdef _KERNEL_OPT
+#include "opt_multiprocessor.h"
+#endif
+
+#ifdef PIC
+#define PIC_PROLOGUE	\
+	pushl	%ebx;	\
+	call	1f;	\
+1:			\
+	popl	%ebx;	\
+	addl	$_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx
+#define PIC_EPILOGUE	\
+	popl	%ebx
+#define PIC_PLT(x)	x@PLT
+#define PIC_GOT(x)	x@GOT(%ebx)
+#define PIC_GOTOFF(x)	x@GOTOFF(%ebx)
+#else
+#define PIC_PROLOGUE
+#define PIC_EPILOGUE
+#define PIC_PLT(x)	x
+#define PIC_GOT(x)	x
+#define PIC_GOTOFF(x)	x
+#endif
+
+#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
+
+#define CVAROFF(x, y)		_C_LABEL(x) + y
+
+#ifdef __STDC__
+# define __CONCAT(x,y)	x ## y
+# define __STRING(x)	#x
+#else
+# define __CONCAT(x,y)	x/**/y
+# define __STRING(x)	"x"
+#endif
+
+/* let kernels and others override entrypoint alignment */
+#if !defined(_ALIGN_TEXT) && !defined(_KERNEL)
+# ifdef _STANDALONE
+#  define _ALIGN_TEXT .align 1
+# elif defined __ELF__
+#  define _ALIGN_TEXT .align 16
+# else
+#  define _ALIGN_TEXT .align 4
+# endif
+#endif
+
+#define _ENTRY(x) \
+	.text; _ALIGN_TEXT; .globl x; .type x,@function; x:
+#define _LABEL(x) \
+	.globl x; x:
+
+#ifdef _KERNEL
+
+#define CPUVAR(off) %fs:__CONCAT(CPU_INFO_,off)
+
+/* XXX Can't use __CONCAT() here, as it would be evaluated incorrectly. */
+#ifdef __ELF__
+#ifdef __STDC__
+#define	IDTVEC(name) \
+	ALIGN_TEXT; .globl X ## name; .type X ## name,@function; X ## name:
+#define	IDTVEC_END(name) \
+	.size X ## name, . - X ## name
+#else 
+#define	IDTVEC(name) \
+	ALIGN_TEXT; .globl X/**/name; .type X/**/name,@function; X/**/name:
+#define	IDTVEC_END(name) \
+	.size X/**/name, . - X/**/name
+#endif /* __STDC__ */ 
+#else 
+#ifdef __STDC__
+#define	IDTVEC(name) \
+	ALIGN_TEXT; .globl _X ## name; .type _X ## name,@function; _X ## name: 
+#define	IDTVEC_END(name) \
+	.size _X ## name, . - _X ## name
+#else
+#define	IDTVEC(name) \
+	ALIGN_TEXT; .globl _X/**/name; .type _X/**/name,@function; _X/**/name:
+#define	IDTVEC_END(name) \
+	.size _X/**/name, . - _X/**/name
+#endif /* __STDC__ */
+#endif /* __ELF__ */
+
+#ifdef _STANDALONE
+#define ALIGN_DATA	.align	4
+#define ALIGN_TEXT	.align	4	/* 4-byte boundaries */
+#define SUPERALIGN_TEXT	.align	16	/* 15-byte boundaries */
+#elif defined __ELF__
+#define ALIGN_DATA	.align	4
+#define ALIGN_TEXT	.align	16	/* 16-byte boundaries */
+#define SUPERALIGN_TEXT	.align	16	/* 16-byte boundaries */
+#else
+#define ALIGN_DATA	.align	2
+#define ALIGN_TEXT	.align	4	/* 16-byte boundaries */
+#define SUPERALIGN_TEXT	.align	4	/* 16-byte boundaries */
+#endif /* __ELF__ */
+
+#define _ALIGN_TEXT ALIGN_TEXT
+
+#ifdef GPROF
+#ifdef __ELF__
+#define	MCOUNT_ASM	call	_C_LABEL(__mcount)
+#else /* __ELF__ */
+#define	MCOUNT_ASM	call	_C_LABEL(mcount)
+#endif /* __ELF__ */
+#else /* GPROF */
+#define	MCOUNT_ASM	/* nothing */
+#endif /* GPROF */
+
+#endif /* _KERNEL */
+
+
+
+#ifdef GPROF
+# ifdef __ELF__
+#  define _PROF_PROLOGUE	\
+	pushl %ebp; movl %esp,%ebp; call PIC_PLT(__mcount); popl %ebp
+# else 
+#  define _PROF_PROLOGUE	\
+	pushl %ebp; movl %esp,%ebp; call PIC_PLT(mcount); popl %ebp
+# endif
+#else
+# define _PROF_PROLOGUE
+#endif
+
+#define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
+#define	NENTRY(y)	_ENTRY(_C_LABEL(y))
+#define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
+#define	LABEL(y)	_LABEL(_C_LABEL(y))
+#define	END(y)		.size y, . - y
+
+#define	ASMSTR		.asciz
+
+#ifdef __ELF__
+#define RCSID(x)	.pushsection ".ident"; .asciz x; .popsection
+#else
+#define RCSID(x)	.text; .asciz x
+#endif
+
+#ifdef NO_KERNEL_RCSIDS
+#define	__KERNEL_RCSID(_n, _s)	/* nothing */
+#else
+#define	__KERNEL_RCSID(_n, _s)	RCSID(_s)
+#endif
+
+#ifdef __ELF__
+#define	WEAK_ALIAS(alias,sym)						\
+	.weak alias;							\
+	alias = sym
+#endif
+/*
+ * STRONG_ALIAS: create a strong alias.
+ */
+#define STRONG_ALIAS(alias,sym)						\
+	.globl alias;							\
+	alias = sym
+
+#ifdef __STDC__
+#define	WARN_REFERENCES(sym,msg)					\
+	.pushsection .gnu.warning. ## sym;				\
+	.ascii msg;							\
+	.popsection
+#else
+#define	WARN_REFERENCES(sym,msg)					\
+	.pushsection .gnu.warning./**/sym;				\
+	.ascii msg;							\
+	.popsection
+#endif /* __STDC__ */
+
+#endif /* !_I386_ASM_H_ */
diff --git a/src/android/x86-ftruncate64.S b/src/android/x86-ftruncate64.S
new file mode 100644
index 00000000..021cc8fe
--- /dev/null
+++ b/src/android/x86-ftruncate64.S
@@ -0,0 +1,28 @@
+/* autogenerated by gensyscalls.py */
+#include <linux/err.h>
+/* Android NDK R8e asm.h for x86 is broken. Use latest one from the repo */
+#include "android/x86-asm.h"
+#include <asm/unistd.h>
+
+ENTRY(ftruncate64)
+    pushl   %ebx
+    pushl   %ecx
+    pushl   %edx
+    mov     16(%esp), %ebx
+    mov     20(%esp), %ecx
+    mov     24(%esp), %edx
+    movl    $__NR_ftruncate64, %eax
+    int     $0x80
+    cmpl    $-MAX_ERRNO, %eax
+    jb      1f
+    negl    %eax
+    pushl   %eax
+    call    __set_errno
+    addl    $4, %esp
+    orl     $-1, %eax
+1:
+    popl    %edx
+    popl    %ecx
+    popl    %ebx
+    ret
+END(ftruncate64)