Port to cygwin

deps/c-ares/cygwin-x86/ares_build.h

@@ -0,0 +1,112 @@
+/* ares_build.h.  Generated from ares_build.h.in by configure.  */
+#ifndef __CARES_BUILD_H
+#define __CARES_BUILD_H
+
+/* $Id$ */
+
+/* Copyright (C) 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  M.I.T. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/* ================================================================ */
+/*               NOTES FOR CONFIGURE CAPABLE SYSTEMS                */
+/* ================================================================ */
+
+/*
+ * NOTE 1:
+ * -------
+ *
+ * Nothing in this file is intended to be modified or adjusted by the
+ * c-ares library user nor by the c-ares library builder.
+ *
+ * If you think that something actually needs to be changed, adjusted
+ * or fixed in this file, then, report it on the c-ares development
+ * mailing list: http://cool.haxx.se/mailman/listinfo/c-ares/
+ *
+ * This header file shall only export symbols which are 'cares' or 'CARES'
+ * prefixed, otherwise public name space would be polluted.
+ *
+ * NOTE 2:
+ * -------
+ *
+ * Right now you might be staring at file ares_build.h.in or ares_build.h,
+ * this is due to the following reason:
+ *
+ * On systems capable of running the configure script, the configure process
+ * will overwrite the distributed ares_build.h file with one that is suitable
+ * and specific to the library being configured and built, which is generated
+ * from the ares_build.h.in template file.
+ *
+ */
+
+/* ================================================================ */
+/*  DEFINITION OF THESE SYMBOLS SHALL NOT TAKE PLACE ANYWHERE ELSE  */
+/* ================================================================ */
+
+#ifdef CARES_SIZEOF_LONG
+#  error "CARES_SIZEOF_LONG shall not be defined except in ares_build.h"
+   Error Compilation_aborted_CARES_SIZEOF_LONG_already_defined
+#endif
+
+#ifdef CARES_TYPEOF_ARES_SOCKLEN_T
+#  error "CARES_TYPEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+   Error Compilation_aborted_CARES_TYPEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+#ifdef CARES_SIZEOF_ARES_SOCKLEN_T
+#  error "CARES_SIZEOF_ARES_SOCKLEN_T shall not be defined except in ares_build.h"
+   Error Compilation_aborted_CARES_SIZEOF_ARES_SOCKLEN_T_already_defined
+#endif
+
+/* ================================================================ */
+/*  EXTERNAL INTERFACE SETTINGS FOR CONFIGURE CAPABLE SYSTEMS ONLY  */
+/* ================================================================ */
+
+/* Configure process defines this to 1 when it finds out that system  */
+/* header file ws2tcpip.h must be included by the external interface. */
+/* #undef CARES_PULL_WS2TCPIP_H */
+#ifdef CARES_PULL_WS2TCPIP_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include <windows.h>
+#  include <winsock2.h>
+#  include <ws2tcpip.h>
+#endif
+
+/* Configure process defines this to 1 when it finds out that system   */
+/* header file sys/types.h must be included by the external interface. */
+#define CARES_PULL_SYS_TYPES_H 1
+#ifdef CARES_PULL_SYS_TYPES_H
+#  include <sys/types.h>
+#endif
+
+/* Configure process defines this to 1 when it finds out that system    */
+/* header file sys/socket.h must be included by the external interface. */
+#define CARES_PULL_SYS_SOCKET_H 1
+#ifdef CARES_PULL_SYS_SOCKET_H
+#  include <sys/socket.h>
+#endif
+
+/* The size of `long', as computed by sizeof. */
+#define CARES_SIZEOF_LONG 4
+
+/* Integral data type used for ares_socklen_t. */
+#define CARES_TYPEOF_ARES_SOCKLEN_T socklen_t
+
+/* The size of `ares_socklen_t', as computed by sizeof. */
+#define CARES_SIZEOF_ARES_SOCKLEN_T 4
+
+/* Data type definition of ares_socklen_t. */
+typedef CARES_TYPEOF_ARES_SOCKLEN_T ares_socklen_t;
+
+#endif /* __CARES_BUILD_H */

deps/c-ares/cygwin-x86/ares_config.h

@@ -0,0 +1,513 @@
+/* ares_config.h.  Generated from ares_config.h.in by configure.  */
+/* ares_config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* define this if ares is built for a big endian system */
+/* #undef ARES_BIG_ENDIAN */
+
+/* when building as static part of libcurl */
+/* #undef BUILDING_LIBCURL */
+
+/* when building c-ares library */
+/* #undef CARES_BUILDING_LIBRARY */
+
+/* when not building a shared library */
+/* #undef CARES_STATICLIB */
+
+/* Define to 1 to enable hiding of library internal symbols. */
+#define CARES_SYMBOL_HIDING 1
+
+/* Definition to make a library symbol externally visible. */
+#define CARES_SYMBOL_SCOPE_EXTERN __attribute__ ((visibility ("default")))
+
+/* if a /etc/inet dir is being used */
+/* #undef ETC_INET */
+
+/* Define to the type qualifier of arg 1 for getnameinfo. */
+#define GETNAMEINFO_QUAL_ARG1 const
+
+/* Define to the type of arg 1 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG1 struct sockaddr *
+
+/* Define to the type of arg 2 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG2 socklen_t
+
+/* Define to the type of args 4 and 6 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG46 int
+
+/* Define to the type of arg 7 for getnameinfo. */
+#define GETNAMEINFO_TYPE_ARG7 int
+
+/* Specifies the number of arguments to getservbyport_r */
+/* #undef GETSERVBYPORT_R_ARGS */
+
+/* Specifies the size of the buffer to pass to getservbyport_r */
+/* #undef GETSERVBYPORT_R_BUFSIZE */
+
+/* Define to 1 if you have AF_INET6. */
+#define HAVE_AF_INET6 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the <arpa/nameser_compat.h> header file. */
+#define HAVE_ARPA_NAMESER_COMPAT_H 1
+
+/* Define to 1 if you have the <arpa/nameser.h> header file. */
+#define HAVE_ARPA_NAMESER_H 1
+
+/* Define to 1 if you have the <assert.h> header file. */
+#define HAVE_ASSERT_H 1
+
+/* Define to 1 if you have the `bitncmp' function. */
+/* #undef HAVE_BITNCMP */
+
+/* Define to 1 if bool is an available type. */
+#define HAVE_BOOL_T 1
+
+/* Define to 1 if you have the clock_gettime function and monotonic timer. */
+/* #undef HAVE_CLOCK_GETTIME_MONOTONIC */
+
+/* Define to 1 if you have the closesocket function. */
+/* #undef HAVE_CLOSESOCKET */
+
+/* Define to 1 if you have the CloseSocket camel case function. */
+/* #undef HAVE_CLOSESOCKET_CAMEL */
+
+/* Define to 1 if you have the connect function. */
+#define HAVE_CONNECT 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <errno.h> header file. */
+#define HAVE_ERRNO_H 1
+
+/* Define to 1 if you have the fcntl function. */
+#define HAVE_FCNTL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define HAVE_FCNTL_H 1
+
+/* Define to 1 if you have a working fcntl O_NONBLOCK function. */
+#define HAVE_FCNTL_O_NONBLOCK 1
+
+/* Define to 1 if you have the freeaddrinfo function. */
+#define HAVE_FREEADDRINFO 1
+
+/* Define to 1 if you have a working getaddrinfo function. */
+#define HAVE_GETADDRINFO 1
+
+/* Define to 1 if the getaddrinfo function is threadsafe. */
+/* #undef HAVE_GETADDRINFO_THREADSAFE */
+
+/* Define to 1 if you have the gethostbyaddr function. */
+#define HAVE_GETHOSTBYADDR 1
+
+/* Define to 1 if you have the gethostbyname function. */
+#define HAVE_GETHOSTBYNAME 1
+
+/* Define to 1 if you have the gethostname function. */
+#define HAVE_GETHOSTNAME 1
+
+/* Define to 1 if you have the getnameinfo function. */
+#define HAVE_GETNAMEINFO 1
+
+/* Define to 1 if you have the getservbyport_r function. */
+/* #undef HAVE_GETSERVBYPORT_R */
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#define HAVE_GETTIMEOFDAY 1
+
+/* Define to 1 if you have the `if_indextoname' function. */
+#define HAVE_IF_INDEXTONAME 1
+
+/* Define to 1 if you have the `inet_net_pton' function. */
+/* #undef HAVE_INET_NET_PTON */
+
+/* Define to 1 if inet_net_pton supports IPv6. */
+/* #undef HAVE_INET_NET_PTON_IPV6 */
+
+/* Define to 1 if you have a IPv6 capable working inet_ntop function. */
+#define HAVE_INET_NTOP 1
+
+/* Define to 1 if you have a IPv6 capable working inet_pton function. */
+#define HAVE_INET_PTON 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the ioctl function. */
+#define HAVE_IOCTL 1
+
+/* Define to 1 if you have the ioctlsocket function. */
+/* #undef HAVE_IOCTLSOCKET */
+
+/* Define to 1 if you have the IoctlSocket camel case function. */
+/* #undef HAVE_IOCTLSOCKET_CAMEL */
+
+/* Define to 1 if you have a working IoctlSocket camel case FIONBIO function.
+   */
+/* #undef HAVE_IOCTLSOCKET_CAMEL_FIONBIO */
+
+/* Define to 1 if you have a working ioctlsocket FIONBIO function. */
+/* #undef HAVE_IOCTLSOCKET_FIONBIO */
+
+/* Define to 1 if you have a working ioctl FIONBIO function. */
+#define HAVE_IOCTL_FIONBIO 1
+
+/* Define to 1 if you have a working ioctl SIOCGIFADDR function. */
+#define HAVE_IOCTL_SIOCGIFADDR 1
+
+/* Define to 1 if you have the `resolve' library (-lresolve). */
+/* #undef HAVE_LIBRESOLVE */
+
+/* Define to 1 if you have the <limits.h> header file. */
+#define HAVE_LIMITS_H 1
+
+/* if your compiler supports LL */
+#define HAVE_LL 1
+
+/* Define to 1 if the compiler supports the 'long long' data type. */
+#define HAVE_LONGLONG 1
+
+/* Define to 1 if you have the malloc.h header file. */
+#define HAVE_MALLOC_H 1
+
+/* Define to 1 if you have the memory.h header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the MSG_NOSIGNAL flag. */
+#define HAVE_MSG_NOSIGNAL 1
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define HAVE_NETINET_TCP_H 1
+
+/* Define to 1 if you have the <net/if.h> header file. */
+#define HAVE_NET_IF_H 1
+
+/* Define to 1 if you have PF_INET6. */
+#define HAVE_PF_INET6 1
+
+/* Define to 1 if you have the recv function. */
+#define HAVE_RECV 1
+
+/* Define to 1 if you have the recvfrom function. */
+#define HAVE_RECVFROM 1
+
+/* Define to 1 if you have the send function. */
+#define HAVE_SEND 1
+
+/* Define to 1 if you have the setsockopt function. */
+#define HAVE_SETSOCKOPT 1
+
+/* Define to 1 if you have a working setsockopt SO_NONBLOCK function. */
+/* #undef HAVE_SETSOCKOPT_SO_NONBLOCK */
+
+/* Define to 1 if you have the <signal.h> header file. */
+#define HAVE_SIGNAL_H 1
+
+/* Define to 1 if sig_atomic_t is an available typedef. */
+#define HAVE_SIG_ATOMIC_T 1
+
+/* Define to 1 if sig_atomic_t is already defined as volatile. */
+/* #undef HAVE_SIG_ATOMIC_T_VOLATILE */
+
+/* Define to 1 if your struct sockaddr_in6 has sin6_scope_id. */
+#define HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID 1
+
+/* Define to 1 if you have the socket function. */
+#define HAVE_SOCKET 1
+
+/* Define to 1 if you have the <socket.h> header file. */
+/* #undef HAVE_SOCKET_H */
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#define HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the strcasecmp function. */
+#define HAVE_STRCASECMP 1
+
+/* Define to 1 if you have the strcmpi function. */
+/* #undef HAVE_STRCMPI */
+
+/* Define to 1 if you have the strdup function. */
+#define HAVE_STRDUP 1
+
+/* Define to 1 if you have the stricmp function. */
+/* #undef HAVE_STRICMP */
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the strncasecmp function. */
+#define HAVE_STRNCASECMP 1
+
+/* Define to 1 if you have the strncmpi function. */
+/* #undef HAVE_STRNCMPI */
+
+/* Define to 1 if you have the strnicmp function. */
+/* #undef HAVE_STRNICMP */
+
+/* Define to 1 if you have the <stropts.h> header file. */
+/* #undef HAVE_STROPTS_H */
+
+/* Define to 1 if you have struct addrinfo. */
+#define HAVE_STRUCT_ADDRINFO 1
+
+/* Define to 1 if you have struct in6_addr. */
+#define HAVE_STRUCT_IN6_ADDR 1
+
+/* Define to 1 if you have struct sockaddr_in6. */
+#define HAVE_STRUCT_SOCKADDR_IN6 1
+
+/* if struct sockaddr_storage is defined */
+#define HAVE_STRUCT_SOCKADDR_STORAGE 1
+
+/* Define to 1 if you have the timeval struct. */
+#define HAVE_STRUCT_TIMEVAL 1
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/select.h> header file. */
+#define HAVE_SYS_SELECT_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define HAVE_SYS_UIO_H 1
+
+/* Define to 1 if you have the <time.h> header file. */
+#define HAVE_TIME_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the windows.h header file. */
+/* #undef HAVE_WINDOWS_H */
+
+/* Define to 1 if you have the winsock2.h header file. */
+/* #undef HAVE_WINSOCK2_H */
+
+/* Define to 1 if you have the winsock.h header file. */
+/* #undef HAVE_WINSOCK_H */
+
+/* Define to 1 if you have the writev function. */
+#define HAVE_WRITEV 1
+
+/* Define to 1 if you have the ws2tcpip.h header file. */
+/* #undef HAVE_WS2TCPIP_H */
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#define LT_OBJDIR ".libs/"
+
+/* Define to 1 if you are building a native Windows target. */
+/* #undef NATIVE_WINDOWS */
+
+/* Define to 1 if you need the malloc.h header file even with stdlib.h */
+/* #undef NEED_MALLOC_H */
+
+/* Define to 1 if you need the memory.h header file even with stdlib.h */
+/* #undef NEED_MEMORY_H */
+
+/* Define to 1 if _REENTRANT preprocessor symbol must be defined. */
+/* #undef NEED_REENTRANT */
+
+/* Define to 1 if _THREAD_SAFE preprocessor symbol must be defined. */
+/* #undef NEED_THREAD_SAFE */
+
+/* Define to 1 if your C compiler doesn't accept -c and -o together. */
+/* #undef NO_MINUS_C_MINUS_O */
+
+/* cpu-machine-OS */
+#define OS "i686-pc-cygwin"
+
+/* Name of package */
+#define PACKAGE "c-ares"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "c-ares mailing list => http://cool.haxx.se/mailman/listinfo/c-ares"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "c-ares"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "c-ares 1.7.1"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "c-ares"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "1.7.1"
+
+/* a suitable file/device to read random data from */
+#define RANDOM_FILE "/dev/urandom"
+
+/* Define to the type of arg 1 for recvfrom. */
+#define RECVFROM_TYPE_ARG1 int
+
+/* Define to the type pointed by arg 2 for recvfrom. */
+#define RECVFROM_TYPE_ARG2 void
+
+/* Define to 1 if the type pointed by arg 2 for recvfrom is void. */
+#define RECVFROM_TYPE_ARG2_IS_VOID 1
+
+/* Define to the type of arg 3 for recvfrom. */
+#define RECVFROM_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recvfrom. */
+#define RECVFROM_TYPE_ARG4 int
+
+/* Define to the type pointed by arg 5 for recvfrom. */
+#define RECVFROM_TYPE_ARG5 struct sockaddr
+
+/* Define to 1 if the type pointed by arg 5 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG5_IS_VOID */
+
+/* Define to the type pointed by arg 6 for recvfrom. */
+#define RECVFROM_TYPE_ARG6 socklen_t
+
+/* Define to 1 if the type pointed by arg 6 for recvfrom is void. */
+/* #undef RECVFROM_TYPE_ARG6_IS_VOID */
+
+/* Define to the function return type for recvfrom. */
+#define RECVFROM_TYPE_RETV int
+
+/* Define to the type of arg 1 for recv. */
+#define RECV_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for recv. */
+#define RECV_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for recv. */
+#define RECV_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for recv. */
+#define RECV_TYPE_ARG4 int
+
+/* Define to the function return type for recv. */
+#define RECV_TYPE_RETV int
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#define RETSIGTYPE void
+
+/* Define to the type qualifier of arg 2 for send. */
+#define SEND_QUAL_ARG2 const
+
+/* Define to the type of arg 1 for send. */
+#define SEND_TYPE_ARG1 int
+
+/* Define to the type of arg 2 for send. */
+#define SEND_TYPE_ARG2 void *
+
+/* Define to the type of arg 3 for send. */
+#define SEND_TYPE_ARG3 size_t
+
+/* Define to the type of arg 4 for send. */
+#define SEND_TYPE_ARG4 int
+
+/* Define to the function return type for send. */
+#define SEND_TYPE_RETV int
+
+/* The size of `int', as computed by sizeof. */
+#define SIZEOF_INT 4
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG 4
+
+/* The size of `size_t', as computed by sizeof. */
+#define SIZEOF_SIZE_T 4
+
+/* The size of `struct in6_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN6_ADDR 16
+
+/* The size of `struct in_addr', as computed by sizeof. */
+#define SIZEOF_STRUCT_IN_ADDR 4
+
+/* The size of `time_t', as computed by sizeof. */
+#define SIZEOF_TIME_T 4
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Define to 1 if you can safely include both <sys/time.h> and <time.h>. */
+#define TIME_WITH_SYS_TIME 1
+
+/* Define to disable non-blocking sockets. */
+/* #undef USE_BLOCKING_SOCKETS */
+
+/* Version number of package */
+#define VERSION "1.7.1"
+
+/* Define to avoid automatic inclusion of winsock.h */
+/* #undef WIN32_LEAN_AND_MEAN */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+#  define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* #  undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Define to 1 if OS is AIX. */
+#ifndef _ALL_SOURCE
+/* #  undef _ALL_SOURCE */
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Type to use in place of in_addr_t when system does not provide it. */
+/* #undef in_addr_t */
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+/* #undef size_t */
+
+/* the signed version of size_t */
+/* #undef ssize_t */

deps/c-ares/cygwin-x86/ares_setup.h

@@ -0,0 +1,198 @@
+#ifndef HEADER_CARES_SETUP_H
+#define HEADER_CARES_SETUP_H
+
+/* $Id$ */
+
+/* Copyright (C) 2004 - 2009 by Daniel Stenberg et al
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose and without fee is hereby granted, provided
+ * that the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of M.I.T. not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  M.I.T. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ */
+
+/*
+ * Define WIN32 when build target is Win32 API
+ */
+
+#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
+#define WIN32
+#endif
+
+/*
+ * Include configuration script results or hand-crafted
+ * configuration file for platforms which lack config tool.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "ares_config.h"
+#else
+
+#ifdef WIN32
+#include "config-win32.h"
+#endif
+
+#endif /* HAVE_CONFIG_H */
+
+/* ================================================================ */
+/* Definition of preprocessor macros/symbols which modify compiler  */
+/* behaviour or generated code characteristics must be done here,   */
+/* as appropriate, before any system header file is included. It is */
+/* also possible to have them defined in the config file included   */
+/* before this point. As a result of all this we frown inclusion of */
+/* system header files in our config files, avoid this at any cost. */
+/* ================================================================ */
+
+/*
+ * AIX 4.3 and newer needs _THREAD_SAFE defined to build
+ * proper reentrant code. Others may also need it.
+ */
+
+#ifdef NEED_THREAD_SAFE
+#  ifndef _THREAD_SAFE
+#    define _THREAD_SAFE
+#  endif
+#endif
+
+/*
+ * Tru64 needs _REENTRANT set for a few function prototypes and
+ * things to appear in the system header files. Unixware needs it
+ * to build proper reentrant code. Others may also need it.
+ */
+
+#ifdef NEED_REENTRANT
+#  ifndef _REENTRANT
+#    define _REENTRANT
+#  endif
+#endif
+
+/* ================================================================ */
+/*  If you need to include a system header file for your platform,  */
+/*  please, do it beyond the point further indicated in this file.  */
+/* ================================================================ */
+
+/*
+ * c-ares external interface definitions are also used internally,
+ * and might also include required system header files to define them.
+ */
+
+#include <ares_build.h>
+
+/*
+ * Compile time sanity checks must also be done when building the library.
+ */
+
+#include <ares_rules.h>
+
+/* ================================================================= */
+/* No system header file shall be included in this file before this  */
+/* point. The only allowed ones are those included from ares_build.h */
+/* ================================================================= */
+
+/*
+ * Include header files for windows builds before redefining anything.
+ * Use this preproessor block only to include or exclude windows.h,
+ * winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
+ * to any other further and independent block.  Under Cygwin things work
+ * just as under linux (e.g. <sys/socket.h>) and the winsock headers should
+ * never be included when __CYGWIN__ is defined.  configure script takes
+ * care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
+ * neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
+ */
+
+#ifdef HAVE_WINDOWS_H
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#  endif
+#  include <windows.h>
+#  ifdef HAVE_WINSOCK2_H
+#    include <winsock2.h>
+#    ifdef HAVE_WS2TCPIP_H
+#       include <ws2tcpip.h>
+#    endif
+#  else
+#    ifdef HAVE_WINSOCK_H
+#      include <winsock.h>
+#    endif
+#  endif
+#endif
+
+/*
+ * Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
+ * define USE_WINSOCK to 1 if we have and use WINSOCK  API, else
+ * undefine USE_WINSOCK.
+ */
+
+#undef USE_WINSOCK
+
+#ifdef HAVE_WINSOCK2_H
+#  define USE_WINSOCK 2
+#else
+#  ifdef HAVE_WINSOCK_H
+#    define USE_WINSOCK 1
+#  endif
+#endif
+
+/*
+ * Work-arounds for systems without configure support
+ */
+
+#ifndef HAVE_CONFIG_H
+
+#if !defined(HAVE_SYS_TIME_H) && !defined(_MSC_VER) && !defined(__WATCOMC__)
+#define HAVE_SYS_TIME_H
+#endif
+
+#if !defined(HAVE_UNISTD_H) && !defined(_MSC_VER)
+#define HAVE_UNISTD_H 1
+#endif
+
+#if !defined(HAVE_SYS_UIO_H) && !defined(WIN32) && !defined(MSDOS)
+#define HAVE_SYS_UIO_H
+#endif
+
+#endif /* HAVE_CONFIG_H */
+
+#ifdef __POCC__
+#  include <sys/types.h>
+#  include <unistd.h>
+#  define ESRCH 3
+#endif
+
+/*
+ * Recent autoconf versions define these symbols in ares_config.h. We don't
+ * want them (since they collide with the libcurl ones when we build
+ *  --enable-debug) so we undef them again here.
+ */
+
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_VERSION
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE_NAME
+#undef VERSION
+#undef PACKAGE
+
+/* IPv6 compatibility */
+#if !defined(HAVE_AF_INET6)
+#if defined(HAVE_PF_INET6)
+#define AF_INET6 PF_INET6
+#else
+#define AF_INET6 AF_MAX+1
+#endif
+#endif
+
+/*
+ * Include macros and defines that should only be processed once.
+ */
+
+#ifndef __SETUP_ONCE_H
+#include "setup_once.h"
+#endif
+
+#endif /* HEADER_CARES_SETUP_H */

deps/libeio/wscript

@@ -1,4 +1,5 @@
 import Options
+import sys
 
 def set_options(opt):
   pass
@@ -10,7 +11,10 @@ def configure(conf):
 
   conf.check(lib='pthread', uselib_store='PTHREAD')
   conf.check_cc(lib="pthread", header_name="pthread.h", function_name="pthread_create", mandatory=True)
+  if not sys.platform.startswith("cygwin"):
     conf.check_cc(lib="pthread", header_name="pthread.h", function_name="pthread_atfork", mandatory=True)
+  else:
+    conf.check_cc(lib="pthread", header_name="unistd.h", function_name="pthread_atfork", mandatory=True)
 
   conf.check_cc(msg="Checking for futimes(2)", define_name="HAVE_FUTIMES", fragment="""
     #include <sys/types.h>

deps/v8/SConstruct

@@ -670,7 +670,7 @@ SIMPLE_OPTIONS = {
     'help': 'the toolchain to use (' + TOOLCHAIN_GUESS + ')'
   },
   'os': {
-    'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd', 'solaris'],
+    'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd', 'solaris', 'cygwin'],
     'default': OS_GUESS,
     'help': 'the os to build for (' + OS_GUESS + ')'
   },

deps/v8/node_cygwin_patch.diff

@@ -0,0 +1,918 @@
+diff --git a/deps/v8/SConstruct b/deps/v8/SConstruct
+index 7219e9d..b8de1b8 100644
+--- a/deps/v8/SConstruct
++++ b/deps/v8/SConstruct
+@@ -670,7 +670,7 @@ SIMPLE_OPTIONS = {
+     'help': 'the toolchain to use (' + TOOLCHAIN_GUESS + ')'
+   },
+   'os': {
+-    'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd', 'solaris'],
++    'values': ['freebsd', 'linux', 'macos', 'win32', 'android', 'openbsd', 'solaris', 'cygwin'],
+     'default': OS_GUESS,
+     'help': 'the os to build for (' + OS_GUESS + ')'
+   },
+diff --git a/deps/v8/src/SConscript b/deps/v8/src/SConscript
+index 8466a0c..9ff3414 100755
+--- a/deps/v8/src/SConscript
++++ b/deps/v8/src/SConscript
+@@ -206,6 +206,7 @@ SOURCES = {
+   'os:android': ['platform-linux.cc', 'platform-posix.cc'],
+   'os:macos':   ['platform-macos.cc', 'platform-posix.cc'],
+   'os:solaris': ['platform-solaris.cc', 'platform-posix.cc'],
++  'os:cygwin':  ['platform-cygwin.cc', 'platform-posix.cc'],
+   'os:nullos':  ['platform-nullos.cc'],
+   'os:win32':   ['platform-win32.cc'],
+   'mode:release': [],
+diff --git a/deps/v8/src/platform-cygwin.cc b/deps/v8/src/platform-cygwin.cc
+new file mode 100644
+index 0000000..34410e8
+--- /dev/null
++++ b/deps/v8/src/platform-cygwin.cc
+@@ -0,0 +1,858 @@
++// Copyright 2006-2008 the V8 project authors. 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.
++//     * Neither the name of Google Inc. 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 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.
++
++// Platform specific code for Cygwin goes here. For the POSIX comaptible parts
++// the implementation is in platform-posix.cc.
++
++#include <pthread.h>
++#include <semaphore.h>
++#include <signal.h>
++#include <sys/time.h>
++#include <sys/resource.h>
++#include <sys/types.h>
++#include <stdlib.h>
++
++// Ubuntu Dapper requires memory pages to be marked as
++// executable. Otherwise, OS raises an exception when executing code
++// in that page.
++#include <sys/types.h>  // mmap & munmap
++#include <sys/mman.h>   // mmap & munmap
++#include <sys/stat.h>   // open
++#include <fcntl.h>      // open
++#include <unistd.h>     // sysconf
++#ifdef __GLIBC__
++#include <execinfo.h>   // backtrace, backtrace_symbols
++#endif  // def __GLIBC__
++#include <strings.h>    // index
++#include <errno.h>
++#include <stdarg.h>
++
++#undef MAP_TYPE
++
++#include "v8.h"
++
++#include "platform.h"
++#include "top.h"
++#include "v8threads.h"
++
++
++namespace v8 {
++namespace internal {
++
++// 0 is never a valid thread id on Linux since tids and pids share a
++// name space and pid 0 is reserved (see man 2 kill).
++static const pthread_t kNoThread = (pthread_t) 0;
++
++
++double ceiling(double x) {
++  return ceil(x);
++}
++
++
++void OS::Setup() {
++  // Seed the random number generator.
++  // Convert the current time to a 64-bit integer first, before converting it
++  // to an unsigned. Going directly can cause an overflow and the seed to be
++  // set to all ones. The seed will be identical for different instances that
++  // call this setup code within the same millisecond.
++  uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis());
++  srandom(static_cast<unsigned int>(seed));
++}
++
++
++uint64_t OS::CpuFeaturesImpliedByPlatform() {
++#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
++  // Here gcc is telling us that we are on an ARM and gcc is assuming that we
++  // have VFP3 instructions.  If gcc can assume it then so can we.
++  return 1u << VFP3;
++#elif CAN_USE_ARMV7_INSTRUCTIONS
++  return 1u << ARMv7;
++#else
++  return 0;  // Linux runs on anything.
++#endif
++}
++
++
++#ifdef __arm__
++bool OS::ArmCpuHasFeature(CpuFeature feature) {
++  const char* search_string = NULL;
++  const char* file_name = "/proc/cpuinfo";
++  // Simple detection of VFP at runtime for Linux.
++  // It is based on /proc/cpuinfo, which reveals hardware configuration
++  // to user-space applications.  According to ARM (mid 2009), no similar
++  // facility is universally available on the ARM architectures,
++  // so it's up to individual OSes to provide such.
++  //
++  // This is written as a straight shot one pass parser
++  // and not using STL string and ifstream because,
++  // on Linux, it's reading from a (non-mmap-able)
++  // character special device.
++  switch (feature) {
++    case VFP3:
++      search_string = "vfp";
++      break;
++    case ARMv7:
++      search_string = "ARMv7";
++      break;
++    default:
++      UNREACHABLE();
++  }
++
++  FILE* f = NULL;
++  const char* what = search_string;
++
++  if (NULL == (f = fopen(file_name, "r")))
++    return false;
++
++  int k;
++  while (EOF != (k = fgetc(f))) {
++    if (k == *what) {
++      ++what;
++      while ((*what != '\0') && (*what == fgetc(f))) {
++        ++what;
++      }
++      if (*what == '\0') {
++        fclose(f);
++        return true;
++      } else {
++        what = search_string;
++      }
++    }
++  }
++  fclose(f);
++
++  // Did not find string in the proc file.
++  return false;
++}
++#endif  // def __arm__
++
++
++int OS::ActivationFrameAlignment() {
++#ifdef V8_TARGET_ARCH_ARM
++  // On EABI ARM targets this is required for fp correctness in the
++  // runtime system.
++  return 8;
++#elif V8_TARGET_ARCH_MIPS
++  return 8;
++#endif
++  // With gcc 4.4 the tree vectorization optimizer can generate code
++  // that requires 16 byte alignment such as movdqa on x86.
++  return 16;
++}
++
++void OS::ReleaseStore(volatile AtomicWord* ptr, AtomicWord value) {
++  __asm__ __volatile__("" : : : "memory");
++  // An x86 store acts as a release barrier.
++  *ptr = value;
++}
++
++const char* OS::LocalTimezone(double time) {
++  if (isnan(time)) return "";
++  time_t tv = static_cast<time_t>(floor(time/msPerSecond));
++  struct tm* t = localtime(&tv);
++  if (NULL == t) return "";
++  return tzname[0];  // The location of the timezone string on Cywin.
++}
++
++
++double OS::LocalTimeOffset() {
++  //
++  // On Cygwin, struct tm does not contain a tm_gmtoff field.
++  time_t utc = time(NULL);
++  ASSERT(utc != -1);
++  struct tm* loc = localtime(&utc);
++  ASSERT(loc != NULL);
++  return static_cast<double>((mktime(loc) - utc) * msPerSecond);
++}
++
++
++// We keep the lowest and highest addresses mapped as a quick way of
++// determining that pointers are outside the heap (used mostly in assertions
++// and verification).  The estimate is conservative, ie, not all addresses in
++// 'allocated' space are actually allocated to our heap.  The range is
++// [lowest, highest), inclusive on the low and and exclusive on the high end.
++static void* lowest_ever_allocated = reinterpret_cast<void*>(-1);
++static void* highest_ever_allocated = reinterpret_cast<void*>(0);
++
++
++static void UpdateAllocatedSpaceLimits(void* address, int size) {
++  lowest_ever_allocated = Min(lowest_ever_allocated, address);
++  highest_ever_allocated =
++      Max(highest_ever_allocated,
++          reinterpret_cast<void*>(reinterpret_cast<char*>(address) + size));
++}
++
++
++bool OS::IsOutsideAllocatedSpace(void* address) {
++  return address < lowest_ever_allocated || address >= highest_ever_allocated;
++}
++
++
++size_t OS::AllocateAlignment() {
++  return sysconf(_SC_PAGESIZE);
++}
++
++
++void* OS::Allocate(const size_t requested,
++                   size_t* allocated,
++                   bool is_executable) {
++  const size_t msize = RoundUp(requested, sysconf(_SC_PAGESIZE));
++  int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
++  void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
++  if (mbase == MAP_FAILED) {
++    LOG(StringEvent("OS::Allocate", "mmap failed"));
++    return NULL;
++  }
++  *allocated = msize;
++  UpdateAllocatedSpaceLimits(mbase, msize);
++  return mbase;
++}
++
++
++void OS::Free(void* address, const size_t size) {
++  // TODO(1240712): munmap has a return value which is ignored here.
++  int result = munmap(address, size);
++  USE(result);
++  ASSERT(result == 0);
++}
++
++
++#ifdef ENABLE_HEAP_PROTECTION
++
++void OS::Protect(void* address, size_t size) {
++  // TODO(1240712): mprotect has a return value which is ignored here.
++  mprotect(address, size, PROT_READ);
++}
++
++
++void OS::Unprotect(void* address, size_t size, bool is_executable) {
++  // TODO(1240712): mprotect has a return value which is ignored here.
++  int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
++  mprotect(address, size, prot);
++}
++
++#endif
++
++
++void OS::Sleep(int milliseconds) {
++  unsigned int ms = static_cast<unsigned int>(milliseconds);
++  usleep(1000 * ms);
++}
++
++
++void OS::Abort() {
++  // Redirect to std abort to signal abnormal program termination.
++  abort();
++}
++
++
++void OS::DebugBreak() {
++// TODO(lrn): Introduce processor define for runtime system (!= V8_ARCH_x,
++//  which is the architecture of generated code).
++#if (defined(__arm__) || defined(__thumb__)) && \
++    defined(CAN_USE_ARMV5_INSTRUCTIONS)
++  asm("bkpt 0");
++#elif defined(__mips__)
++  asm("break");
++#else
++  asm("int $3");
++#endif
++}
++
++
++class PosixMemoryMappedFile : public OS::MemoryMappedFile {
++ public:
++  PosixMemoryMappedFile(FILE* file, void* memory, int size)
++    : file_(file), memory_(memory), size_(size) { }
++  virtual ~PosixMemoryMappedFile();
++  virtual void* memory() { return memory_; }
++ private:
++  FILE* file_;
++  void* memory_;
++  int size_;
++};
++
++
++OS::MemoryMappedFile* OS::MemoryMappedFile::create(const char* name, int size,
++    void* initial) {
++  FILE* file = fopen(name, "w+");
++  if (file == NULL) return NULL;
++  int result = fwrite(initial, size, 1, file);
++  if (result < 1) {
++    fclose(file);
++    return NULL;
++  }
++  void* memory =
++      mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fileno(file), 0);
++  return new PosixMemoryMappedFile(file, memory, size);
++}
++
++
++PosixMemoryMappedFile::~PosixMemoryMappedFile() {
++  if (memory_) munmap(memory_, size_);
++  fclose(file_);
++}
++
++
++void OS::LogSharedLibraryAddresses() {
++#ifdef ENABLE_LOGGING_AND_PROFILING
++  // This function assumes that the layout of the file is as follows:
++  // hex_start_addr-hex_end_addr rwxp <unused data> [binary_file_name]
++  // If we encounter an unexpected situation we abort scanning further entries.
++  FILE* fp = fopen("/proc/self/maps", "r");
++  if (fp == NULL) return;
++
++  // Allocate enough room to be able to store a full file name.
++  const int kLibNameLen = FILENAME_MAX + 1;
++  char* lib_name = reinterpret_cast<char*>(malloc(kLibNameLen));
++
++  // This loop will terminate once the scanning hits an EOF.
++  while (true) {
++    uintptr_t start, end;
++    char attr_r, attr_w, attr_x, attr_p;
++    // Parse the addresses and permission bits at the beginning of the line.
++    if (fscanf(fp, "%" V8PRIxPTR "-%" V8PRIxPTR, &start, &end) != 2) break;
++    if (fscanf(fp, " %c%c%c%c", &attr_r, &attr_w, &attr_x, &attr_p) != 4) break;
++
++    int c;
++    if (attr_r == 'r' && attr_w != 'w' && attr_x == 'x') {
++      // Found a read-only executable entry. Skip characters until we reach
++      // the beginning of the filename or the end of the line.
++      do {
++        c = getc(fp);
++      } while ((c != EOF) && (c != '\n') && (c != '/'));
++      if (c == EOF) break;  // EOF: Was unexpected, just exit.
++
++      // Process the filename if found.
++      if (c == '/') {
++        ungetc(c, fp);  // Push the '/' back into the stream to be read below.
++
++        // Read to the end of the line. Exit if the read fails.
++        if (fgets(lib_name, kLibNameLen, fp) == NULL) break;
++
++        // Drop the newline character read by fgets. We do not need to check
++        // for a zero-length string because we know that we at least read the
++        // '/' character.
++        lib_name[strlen(lib_name) - 1] = '\0';
++      } else {
++        // No library name found, just record the raw address range.
++        snprintf(lib_name, kLibNameLen,
++                 "%08" V8PRIxPTR "-%08" V8PRIxPTR, start, end);
++      }
++      LOG(SharedLibraryEvent(lib_name, start, end));
++    } else {
++      // Entry not describing executable data. Skip to end of line to setup
++      // reading the next entry.
++      do {
++        c = getc(fp);
++      } while ((c != EOF) && (c != '\n'));
++      if (c == EOF) break;
++    }
++  }
++  free(lib_name);
++  fclose(fp);
++#endif
++}
++
++
++int OS::StackWalk(Vector<OS::StackFrame> frames) {
++  // backtrace is a glibc extension.
++#ifdef __GLIBC__
++  int frames_size = frames.length();
++  ScopedVector<void*> addresses(frames_size);
++
++  int frames_count = backtrace(addresses.start(), frames_size);
++
++  char** symbols = backtrace_symbols(addresses.start(), frames_count);
++  if (symbols == NULL) {
++    return kStackWalkError;
++  }
++
++  for (int i = 0; i < frames_count; i++) {
++    frames[i].address = addresses[i];
++    // Format a text representation of the frame based on the information
++    // available.
++    SNPrintF(MutableCStrVector(frames[i].text, kStackWalkMaxTextLen),
++             "%s",
++             symbols[i]);
++    // Make sure line termination is in place.
++    frames[i].text[kStackWalkMaxTextLen - 1] = '\0';
++  }
++
++  free(symbols);
++
++  return frames_count;
++#else  // ndef __GLIBC__
++  return 0;
++#endif  // ndef __GLIBC__
++}
++
++
++// Constants used for mmap.
++static const int kMmapFd = -1;
++static const int kMmapFdOffset = 0;
++
++
++VirtualMemory::VirtualMemory(size_t size) {
++  address_ = mmap(NULL, size, PROT_NONE,
++                  MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE,
++                  kMmapFd, kMmapFdOffset);
++  size_ = size;
++}
++
++
++VirtualMemory::~VirtualMemory() {
++  if (IsReserved()) {
++    if (0 == munmap(address(), size())) address_ = MAP_FAILED;
++  }
++}
++
++
++bool VirtualMemory::IsReserved() {
++  return address_ != MAP_FAILED;
++}
++
++
++bool VirtualMemory::Commit(void* address, size_t size, bool is_executable) {
++  int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
++
++#ifdef HAS_MAP_FIXED
++  if (MAP_FAILED == mmap(address, size, prot,
++                         MAP_PRIVATE | MAP_ANONYMOUS, // | MAP_FIXED, - Cygwin doesn't have MAP_FIXED
++                         kMmapFd, kMmapFdOffset)) {
++    return false;
++  }
++#else
++  if (mprotect(address, size, prot) != 0) {
++    return false;
++  }
++#endif
++
++  UpdateAllocatedSpaceLimits(address, size);
++  return true;
++}
++
++
++bool VirtualMemory::Uncommit(void* address, size_t size) {
++  return mmap(address, size, PROT_NONE,
++              MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, // | MAP_FIXED, - Cygwin doesn't have MAP_FIXED
++              kMmapFd, kMmapFdOffset) != MAP_FAILED;
++}
++
++
++class ThreadHandle::PlatformData : public Malloced {
++ public:
++  explicit PlatformData(ThreadHandle::Kind kind) {
++    Initialize(kind);
++  }
++
++  void Initialize(ThreadHandle::Kind kind) {
++    switch (kind) {
++      case ThreadHandle::SELF: thread_ = pthread_self(); break;
++      case ThreadHandle::INVALID: thread_ = kNoThread; break;
++    }
++  }
++
++  pthread_t thread_;  // Thread handle for pthread.
++};
++
++
++ThreadHandle::ThreadHandle(Kind kind) {
++  data_ = new PlatformData(kind);
++}
++
++
++void ThreadHandle::Initialize(ThreadHandle::Kind kind) {
++  data_->Initialize(kind);
++}
++
++
++ThreadHandle::~ThreadHandle() {
++  delete data_;
++}
++
++
++bool ThreadHandle::IsSelf() const {
++  return pthread_equal(data_->thread_, pthread_self());
++}
++
++
++bool ThreadHandle::IsValid() const {
++  return data_->thread_ != kNoThread;
++}
++
++
++Thread::Thread() : ThreadHandle(ThreadHandle::INVALID) {
++}
++
++
++Thread::~Thread() {
++}
++
++
++static void* ThreadEntry(void* arg) {
++  Thread* thread = reinterpret_cast<Thread*>(arg);
++  // This is also initialized by the first argument to pthread_create() but we
++  // don't know which thread will run first (the original thread or the new
++  // one) so we initialize it here too.
++  thread->thread_handle_data()->thread_ = pthread_self();
++  ASSERT(thread->IsValid());
++  thread->Run();
++  return NULL;
++}
++
++
++void Thread::Start() {
++  pthread_create(&thread_handle_data()->thread_, NULL, ThreadEntry, this);
++  ASSERT(IsValid());
++}
++
++
++void Thread::Join() {
++  pthread_join(thread_handle_data()->thread_, NULL);
++}
++
++
++Thread::LocalStorageKey Thread::CreateThreadLocalKey() {
++  pthread_key_t key;
++  int result = pthread_key_create(&key, NULL);
++  USE(result);
++  ASSERT(result == 0);
++  return static_cast<LocalStorageKey>(key);
++}
++
++
++void Thread::DeleteThreadLocalKey(LocalStorageKey key) {
++  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
++  int result = pthread_key_delete(pthread_key);
++  USE(result);
++  ASSERT(result == 0);
++}
++
++
++void* Thread::GetThreadLocal(LocalStorageKey key) {
++  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
++  return pthread_getspecific(pthread_key);
++}
++
++
++void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
++  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
++  pthread_setspecific(pthread_key, value);
++}
++
++
++void Thread::YieldCPU() {
++  sched_yield();
++}
++
++
++class CygwinMutex : public Mutex {
++ public:
++
++  CygwinMutex() {
++    pthread_mutexattr_t attrs;
++    memset(&attrs, 0, sizeof(attrs));
++
++    int result = pthread_mutexattr_init(&attrs);
++    ASSERT(result == 0);
++    result = pthread_mutexattr_settype(&attrs, PTHREAD_MUTEX_RECURSIVE);
++    ASSERT(result == 0);
++    result = pthread_mutex_init(&mutex_, &attrs);
++    ASSERT(result == 0);
++  }
++
++  virtual ~CygwinMutex() { pthread_mutex_destroy(&mutex_); }
++
++  virtual int Lock() {
++    int result = pthread_mutex_lock(&mutex_);
++    return result;
++  }
++
++  virtual int Unlock() {
++    int result = pthread_mutex_unlock(&mutex_);
++    return result;
++  }
++
++ private:
++  pthread_mutex_t mutex_;   // Pthread mutex for POSIX platforms.
++};
++
++
++Mutex* OS::CreateMutex() {
++  return new CygwinMutex();
++}
++
++
++class CygwinSemaphore : public Semaphore {
++ public:
++  explicit CygwinSemaphore(int count) {  sem_init(&sem_, 0, count); }
++  virtual ~CygwinSemaphore() { sem_destroy(&sem_); }
++
++  virtual void Wait();
++  virtual bool Wait(int timeout);
++  virtual void Signal() { sem_post(&sem_); }
++ private:
++  sem_t sem_;
++};
++
++
++void CygwinSemaphore::Wait() {
++  while (true) {
++    int result = sem_wait(&sem_);
++    if (result == 0) return;  // Successfully got semaphore.
++    CHECK(result == -1 && errno == EINTR);  // Signal caused spurious wakeup.
++  }
++}
++
++
++#ifndef TIMEVAL_TO_TIMESPEC
++#define TIMEVAL_TO_TIMESPEC(tv, ts) do {                            \
++    (ts)->tv_sec = (tv)->tv_sec;                                    \
++    (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
++} while (false)
++#endif
++
++
++bool CygwinSemaphore::Wait(int timeout) {
++  const long kOneSecondMicros = 1000000;  // NOLINT
++
++  // Split timeout into second and nanosecond parts.
++  struct timeval delta;
++  delta.tv_usec = timeout % kOneSecondMicros;
++  delta.tv_sec = timeout / kOneSecondMicros;
++
++  struct timeval current_time;
++  // Get the current time.
++  if (gettimeofday(&current_time, NULL) == -1) {
++    return false;
++  }
++
++  // Calculate time for end of timeout.
++  struct timeval end_time;
++  timeradd(&current_time, &delta, &end_time);
++
++  struct timespec ts;
++  TIMEVAL_TO_TIMESPEC(&end_time, &ts);
++  // Wait for semaphore signalled or timeout.
++  while (true) {
++    int result = sem_timedwait(&sem_, &ts);
++    if (result == 0) return true;  // Successfully got semaphore.
++    if (result > 0) {
++      // For glibc prior to 2.3.4 sem_timedwait returns the error instead of -1.
++      errno = result;
++      result = -1;
++    }
++    if (result == -1 && errno == ETIMEDOUT) return false;  // Timeout.
++    CHECK(result == -1 && errno == EINTR);  // Signal caused spurious wakeup.
++  }
++}
++
++
++Semaphore* OS::CreateSemaphore(int count) {
++  return new CygwinSemaphore(count);
++}
++
++
++#ifdef ENABLE_LOGGING_AND_PROFILING
++
++static Sampler* active_sampler_ = NULL;
++static pthread_t vm_thread_ = 0;
++
++
++#if !defined(__GLIBC__) && (defined(__arm__) || defined(__thumb__))
++// Android runs a fairly new Linux kernel, so signal info is there,
++// but the C library doesn't have the structs defined.
++
++struct sigcontext {
++  uint32_t trap_no;
++  uint32_t error_code;
++  uint32_t oldmask;
++  uint32_t gregs[16];
++  uint32_t arm_cpsr;
++  uint32_t fault_address;
++};
++typedef uint32_t __sigset_t;
++typedef struct sigcontext mcontext_t;
++typedef struct ucontext {
++  uint32_t uc_flags;
++  struct ucontext* uc_link;
++  stack_t uc_stack;
++  mcontext_t uc_mcontext;
++  __sigset_t uc_sigmask;
++} ucontext_t;
++enum ArmRegisters {R15 = 15, R13 = 13, R11 = 11};
++
++#endif
++
++
++// A function that determines if a signal handler is called in the context
++// of a VM thread.
++//
++// The problem is that SIGPROF signal can be delivered to an arbitrary thread
++// (see http://code.google.com/p/google-perftools/issues/detail?id=106#c2)
++// So, if the signal is being handled in the context of a non-VM thread,
++// it means that the VM thread is running, and trying to sample its stack can
++// cause a crash.
++static inline bool IsVmThread() {
++  // In the case of a single VM thread, this check is enough.
++  if (pthread_equal(pthread_self(), vm_thread_)) return true;
++  // If there are multiple threads that use VM, they must have a thread id
++  // stored in TLS. To verify that the thread is really executing VM,
++  // we check Top's data. Having that ThreadManager::RestoreThread first
++  // restores ThreadLocalTop from TLS, and only then erases the TLS value,
++  // reading Top::thread_id() should not be affected by races.
++  if (ThreadManager::HasId() && !ThreadManager::IsArchived() &&
++      ThreadManager::CurrentId() == Top::thread_id()) {
++    return true;
++  }
++  return false;
++}
++
++
++static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) {
++#ifndef V8_HOST_ARCH_MIPS
++  USE(info);
++  if (signal != SIGPROF) return;
++  if (active_sampler_ == NULL) return;
++
++  TickSample sample_obj;
++  TickSample* sample = CpuProfiler::TickSampleEvent();
++  if (sample == NULL) sample = &sample_obj;
++
++  // We always sample the VM state.
++  sample->state = VMState::current_state();
++
++#if 0
++  // If profiling, we extract the current pc and sp.
++  if (active_sampler_->IsProfiling()) {
++    // Extracting the sample from the context is extremely machine dependent.
++    ucontext_t* ucontext = reinterpret_cast<ucontext_t*>(context);
++    mcontext_t& mcontext = ucontext->uc_mcontext;
++#if V8_HOST_ARCH_IA32
++    sample->pc = reinterpret_cast<Address>(mcontext.gregs[REG_EIP]);
++    sample->sp = reinterpret_cast<Address>(mcontext.gregs[REG_ESP]);
++    sample->fp = reinterpret_cast<Address>(mcontext.gregs[REG_EBP]);
++#elif V8_HOST_ARCH_X64
++    sample->pc = reinterpret_cast<Address>(mcontext.gregs[REG_RIP]);
++    sample->sp = reinterpret_cast<Address>(mcontext.gregs[REG_RSP]);
++    sample->fp = reinterpret_cast<Address>(mcontext.gregs[REG_RBP]);
++#elif V8_HOST_ARCH_ARM
++// An undefined macro evaluates to 0, so this applies to Android's Bionic also.
++#if (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
++    sample->pc = reinterpret_cast<Address>(mcontext.gregs[R15]);
++    sample->sp = reinterpret_cast<Address>(mcontext.gregs[R13]);
++    sample->fp = reinterpret_cast<Address>(mcontext.gregs[R11]);
++#else
++    sample->pc = reinterpret_cast<Address>(mcontext.arm_pc);
++    sample->sp = reinterpret_cast<Address>(mcontext.arm_sp);
++    sample->fp = reinterpret_cast<Address>(mcontext.arm_fp);
++#endif
++#elif V8_HOST_ARCH_MIPS
++    // Implement this on MIPS.
++    UNIMPLEMENTED();
++#endif
++    if (IsVmThread()) {
++      active_sampler_->SampleStack(sample);
++    }
++  }
++#endif
++
++  active_sampler_->Tick(sample);
++#endif
++}
++
++
++class Sampler::PlatformData : public Malloced {
++ public:
++  PlatformData() {
++    signal_handler_installed_ = false;
++  }
++
++  bool signal_handler_installed_;
++  struct sigaction old_signal_handler_;
++  struct itimerval old_timer_value_;
++};
++
++
++Sampler::Sampler(int interval, bool profiling)
++    : interval_(interval), profiling_(profiling), active_(false) {
++  data_ = new PlatformData();
++}
++
++
++Sampler::~Sampler() {
++  delete data_;
++}
++
++
++void Sampler::Start() {
++  // There can only be one active sampler at the time on POSIX
++  // platforms.
++  if (active_sampler_ != NULL) return;
++
++  vm_thread_ = pthread_self();
++
++  // Request profiling signals.
++  struct sigaction sa;
++  sa.sa_sigaction = ProfilerSignalHandler;
++  sigemptyset(&sa.sa_mask);
++  sa.sa_flags = SA_SIGINFO;
++  if (sigaction(SIGPROF, &sa, &data_->old_signal_handler_) != 0) return;
++  data_->signal_handler_installed_ = true;
++
++  // Set the itimer to generate a tick for each interval.
++  itimerval itimer;
++  itimer.it_interval.tv_sec = interval_ / 1000;
++  itimer.it_interval.tv_usec = (interval_ % 1000) * 1000;
++  itimer.it_value.tv_sec = itimer.it_interval.tv_sec;
++  itimer.it_value.tv_usec = itimer.it_interval.tv_usec;
++  setitimer(ITIMER_PROF, &itimer, &data_->old_timer_value_);
++
++  // Set this sampler as the active sampler.
++  active_sampler_ = this;
++  active_ = true;
++}
++
++
++void Sampler::Stop() {
++  // Restore old signal handler
++  if (data_->signal_handler_installed_) {
++    setitimer(ITIMER_PROF, &data_->old_timer_value_, NULL);
++    sigaction(SIGPROF, &data_->old_signal_handler_, 0);
++    data_->signal_handler_installed_ = false;
++  }
++
++  // This sampler is no longer the active sampler.
++  active_sampler_ = NULL;
++  active_ = false;
++}
++
++
++#endif  // ENABLE_LOGGING_AND_PROFILING
++
++} }  // namespace v8::internal
+diff --git a/deps/v8/src/platform.h b/deps/v8/src/platform.h
+index d63ca5e..1091ba6 100644
+--- a/deps/v8/src/platform.h
++++ b/deps/v8/src/platform.h
+@@ -360,7 +360,11 @@ class ThreadHandle {
+ class Thread: public ThreadHandle {
+  public:
+   // Opaque data type for thread-local storage keys.
++#ifndef __CYGWIN__
+   enum LocalStorageKey {};
++#else
++  typedef void *LocalStorageKey;
++#endif
+ 
+   // Create new thread.
+   Thread();
+diff --git a/deps/v8/tools/utils.py b/deps/v8/tools/utils.py
+index 3a55722..505c398 100644
+--- a/deps/v8/tools/utils.py
++++ b/deps/v8/tools/utils.py
+@@ -59,6 +59,8 @@ def GuessOS():
+     return 'openbsd'
+   elif id == 'SunOS':
+     return 'solaris'
++  elif id.find('CYGWIN') >= 0:
++    return 'cygwin'
+   else:
+     return None
+ 

deps/v8/src/SConscript

@@ -206,6 +206,7 @@ SOURCES = {
   'os:android': ['platform-linux.cc', 'platform-posix.cc'],
   'os:macos':   ['platform-macos.cc', 'platform-posix.cc'],
   'os:solaris': ['platform-solaris.cc', 'platform-posix.cc'],
+  'os:cygwin':  ['platform-cygwin.cc', 'platform-posix.cc'],
   'os:nullos':  ['platform-nullos.cc'],
   'os:win32':   ['platform-win32.cc'],
   'mode:release': [],

deps/v8/src/platform-cygwin.cc

@@ -0,0 +1,858 @@
+// Copyright 2006-2008 the V8 project authors. 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.
+//     * Neither the name of Google Inc. 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 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.
+
+// Platform specific code for Cygwin goes here. For the POSIX comaptible parts
+// the implementation is in platform-posix.cc.
+
+#include <pthread.h>
+#include <semaphore.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <stdlib.h>
+
+// Ubuntu Dapper requires memory pages to be marked as
+// executable. Otherwise, OS raises an exception when executing code
+// in that page.
+#include <sys/types.h>  // mmap & munmap
+#include <sys/mman.h>   // mmap & munmap
+#include <sys/stat.h>   // open
+#include <fcntl.h>      // open
+#include <unistd.h>     // sysconf
+#ifdef __GLIBC__
+#include <execinfo.h>   // backtrace, backtrace_symbols
+#endif  // def __GLIBC__
+#include <strings.h>    // index
+#include <errno.h>
+#include <stdarg.h>
+
+#undef MAP_TYPE
+
+#include "v8.h"
+
+#include "platform.h"
+#include "top.h"
+#include "v8threads.h"
+
+
+namespace v8 {
+namespace internal {
+
+// 0 is never a valid thread id on Linux since tids and pids share a
+// name space and pid 0 is reserved (see man 2 kill).
+static const pthread_t kNoThread = (pthread_t) 0;
+
+
+double ceiling(double x) {
+  return ceil(x);
+}
+
+
+void OS::Setup() {
+  // Seed the random number generator.
+  // Convert the current time to a 64-bit integer first, before converting it
+  // to an unsigned. Going directly can cause an overflow and the seed to be
+  // set to all ones. The seed will be identical for different instances that
+  // call this setup code within the same millisecond.
+  uint64_t seed = static_cast<uint64_t>(TimeCurrentMillis());
+  srandom(static_cast<unsigned int>(seed));
+}
+
+
+uint64_t OS::CpuFeaturesImpliedByPlatform() {
+#if (defined(__VFP_FP__) && !defined(__SOFTFP__))
+  // Here gcc is telling us that we are on an ARM and gcc is assuming that we
+  // have VFP3 instructions.  If gcc can assume it then so can we.
+  return 1u << VFP3;
+#elif CAN_USE_ARMV7_INSTRUCTIONS
+  return 1u << ARMv7;
+#else
+  return 0;  // Linux runs on anything.
+#endif
+}
+
+
+#ifdef __arm__
+bool OS::ArmCpuHasFeature(CpuFeature feature) {
+  const char* search_string = NULL;
+  const char* file_name = "/proc/cpuinfo";
+  // Simple detection of VFP at runtime for Linux.
+  // It is based on /proc/cpuinfo, which reveals hardware configuration
+  // to user-space applications.  According to ARM (mid 2009), no similar
+  // facility is universally available on the ARM architectures,
+  // so it's up to individual OSes to provide such.
+  //
+  // This is written as a straight shot one pass parser
+  // and not using STL string and ifstream because,
+  // on Linux, it's reading from a (non-mmap-able)
+  // character special device.
+  switch (feature) {
+    case VFP3:
+      search_string = "vfp";
+      break;
+    case ARMv7:
+      search_string = "ARMv7";
+      break;
+    default:
+      UNREACHABLE();
+  }
+
+  FILE* f = NULL;
+  const char* what = search_string;
+
+  if (NULL == (f = fopen(file_name, "r")))
+    return false;
+
+  int k;
+  while (EOF != (k = fgetc(f))) {
+    if (k == *what) {
+      ++what;
+      while ((*what != '\0') && (*what == fgetc(f))) {
+        ++what;
+      }
+      if (*what == '\0') {
+        fclose(f);
+        return true;
+      } else {
+        what = search_string;
+      }
+    }
+  }
+  fclose(f);
+
+  // Did not find string in the proc file.
+  return false;
+}
+#endif  // def __arm__
+
+
+int OS::ActivationFrameAlignment() {
+#ifdef V8_TARGET_ARCH_ARM
+  // On EABI ARM targets this is required for fp correctness in the
+  // runtime system.
+  return 8;
+#elif V8_TARGET_ARCH_MIPS
+  return 8;
+#endif
+  // With gcc 4.4 the tree vectorization optimizer can generate code
+  // that requires 16 byte alignment such as movdqa on x86.
+  return 16;
+}
+
+void OS::ReleaseStore(volatile AtomicWord* ptr, AtomicWord value) {
+  __asm__ __volatile__("" : : : "memory");
+  // An x86 store acts as a release barrier.
+  *ptr = value;
+}
+
+const char* OS::LocalTimezone(double time) {
+  if (isnan(time)) return "";
+  time_t tv = static_cast<time_t>(floor(time/msPerSecond));
+  struct tm* t = localtime(&tv);
+  if (NULL == t) return "";
+  return tzname[0];  // The location of the timezone string on Cywin.
+}
+
+
+double OS::LocalTimeOffset() {
+  //
+  // On Cygwin, struct tm does not contain a tm_gmtoff field.
+  time_t utc = time(NULL);
+  ASSERT(utc != -1);
+  struct tm* loc = localtime(&utc);
+  ASSERT(loc != NULL);
+  return static_cast<double>((mktime(loc) - utc) * msPerSecond);
+}
+
+
+// We keep the lowest and highest addresses mapped as a quick way of
+// determining that pointers are outside the heap (used mostly in assertions
+// and verification).  The estimate is conservative, ie, not all addresses in
+// 'allocated' space are actually allocated to our heap.  The range is
+// [lowest, highest), inclusive on the low and and exclusive on the high end.
+static void* lowest_ever_allocated = reinterpret_cast<void*>(-1);
+static void* highest_ever_allocated = reinterpret_cast<void*>(0);
+
+
+static void UpdateAllocatedSpaceLimits(void* address, int size) {
+  lowest_ever_allocated = Min(lowest_ever_allocated, address);
+  highest_ever_allocated =
+      Max(highest_ever_allocated,
+          reinterpret_cast<void*>(reinterpret_cast<char*>(address) + size));
+}
+
+
+bool OS::IsOutsideAllocatedSpace(void* address) {
+  return address < lowest_ever_allocated || address >= highest_ever_allocated;
+}
+
+
+size_t OS::AllocateAlignment() {
+  return sysconf(_SC_PAGESIZE);
+}
+
+
+void* OS::Allocate(const size_t requested,
+                   size_t* allocated,
+                   bool is_executable) {
+  const size_t msize = RoundUp(requested, sysconf(_SC_PAGESIZE));
+  int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
+  void* mbase = mmap(NULL, msize, prot, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+  if (mbase == MAP_FAILED) {
+    LOG(StringEvent("OS::Allocate", "mmap failed"));
+    return NULL;
+  }
+  *allocated = msize;
+  UpdateAllocatedSpaceLimits(mbase, msize);
+  return mbase;
+}
+
+
+void OS::Free(void* address, const size_t size) {
+  // TODO(1240712): munmap has a return value which is ignored here.
+  int result = munmap(address, size);
+  USE(result);
+  ASSERT(result == 0);
+}
+
+
+#ifdef ENABLE_HEAP_PROTECTION
+
+void OS::Protect(void* address, size_t size) {
+  // TODO(1240712): mprotect has a return value which is ignored here.
+  mprotect(address, size, PROT_READ);
+}
+
+
+void OS::Unprotect(void* address, size_t size, bool is_executable) {
+  // TODO(1240712): mprotect has a return value which is ignored here.
+  int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
+  mprotect(address, size, prot);
+}
+
+#endif
+
+
+void OS::Sleep(int milliseconds) {
+  unsigned int ms = static_cast<unsigned int>(milliseconds);
+  usleep(1000 * ms);
+}
+
+
+void OS::Abort() {
+  // Redirect to std abort to signal abnormal program termination.
+  abort();
+}
+
+
+void OS::DebugBreak() {
+// TODO(lrn): Introduce processor define for runtime system (!= V8_ARCH_x,
+//  which is the architecture of generated code).
+#if (defined(__arm__) || defined(__thumb__)) && \
+    defined(CAN_USE_ARMV5_INSTRUCTIONS)
+  asm("bkpt 0");
+#elif defined(__mips__)
+  asm("break");
+#else
+  asm("int $3");
+#endif
+}
+
+
+class PosixMemoryMappedFile : public OS::MemoryMappedFile {
+ public:
+  PosixMemoryMappedFile(FILE* file, void* memory, int size)
+    : file_(file), memory_(memory), size_(size) { }
+  virtual ~PosixMemoryMappedFile();
+  virtual void* memory() { return memory_; }
+ private:
+  FILE* file_;
+  void* memory_;
+  int size_;
+};
+
+
+OS::MemoryMappedFile* OS::MemoryMappedFile::create(const char* name, int size,
+    void* initial) {
+  FILE* file = fopen(name, "w+");
+  if (file == NULL) return NULL;
+  int result = fwrite(initial, size, 1, file);
+  if (result < 1) {
+    fclose(file);
+    return NULL;
+  }
+  void* memory =
+      mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED, fileno(file), 0);
+  return new PosixMemoryMappedFile(file, memory, size);
+}
+
+
+PosixMemoryMappedFile::~PosixMemoryMappedFile() {
+  if (memory_) munmap(memory_, size_);
+  fclose(file_);
+}
+
+
+void OS::LogSharedLibraryAddresses() {
+#ifdef ENABLE_LOGGING_AND_PROFILING
+  // This function assumes that the layout of the file is as follows:
+  // hex_start_addr-hex_end_addr rwxp <unused data> [binary_file_name]
+  // If we encounter an unexpected situation we abort scanning further entries.
+  FILE* fp = fopen("/proc/self/maps", "r");
+  if (fp == NULL) return;
+
+  // Allocate enough room to be able to store a full file name.
+  const int kLibNameLen = FILENAME_MAX + 1;
+  char* lib_name = reinterpret_cast<char*>(malloc(kLibNameLen));
+
+  // This loop will terminate once the scanning hits an EOF.
+  while (true) {
+    uintptr_t start, end;
+    char attr_r, attr_w, attr_x, attr_p;
+    // Parse the addresses and permission bits at the beginning of the line.
+    if (fscanf(fp, "%" V8PRIxPTR "-%" V8PRIxPTR, &start, &end) != 2) break;
+    if (fscanf(fp, " %c%c%c%c", &attr_r, &attr_w, &attr_x, &attr_p) != 4) break;
+
+    int c;
+    if (attr_r == 'r' && attr_w != 'w' && attr_x == 'x') {
+      // Found a read-only executable entry. Skip characters until we reach
+      // the beginning of the filename or the end of the line.
+      do {
+        c = getc(fp);
+      } while ((c != EOF) && (c != '\n') && (c != '/'));
+      if (c == EOF) break;  // EOF: Was unexpected, just exit.
+
+      // Process the filename if found.
+      if (c == '/') {
+        ungetc(c, fp);  // Push the '/' back into the stream to be read below.
+
+        // Read to the end of the line. Exit if the read fails.
+        if (fgets(lib_name, kLibNameLen, fp) == NULL) break;
+
+        // Drop the newline character read by fgets. We do not need to check
+        // for a zero-length string because we know that we at least read the
+        // '/' character.
+        lib_name[strlen(lib_name) - 1] = '\0';
+      } else {
+        // No library name found, just record the raw address range.
+        snprintf(lib_name, kLibNameLen,
+                 "%08" V8PRIxPTR "-%08" V8PRIxPTR, start, end);
+      }
+      LOG(SharedLibraryEvent(lib_name, start, end));
+    } else {
+      // Entry not describing executable data. Skip to end of line to setup
+      // reading the next entry.
+      do {
+        c = getc(fp);
+      } while ((c != EOF) && (c != '\n'));
+      if (c == EOF) break;
+    }
+  }
+  free(lib_name);
+  fclose(fp);
+#endif
+}
+
+
+int OS::StackWalk(Vector<OS::StackFrame> frames) {
+  // backtrace is a glibc extension.
+#ifdef __GLIBC__
+  int frames_size = frames.length();
+  ScopedVector<void*> addresses(frames_size);
+
+  int frames_count = backtrace(addresses.start(), frames_size);
+
+  char** symbols = backtrace_symbols(addresses.start(), frames_count);
+  if (symbols == NULL) {
+    return kStackWalkError;
+  }
+
+  for (int i = 0; i < frames_count; i++) {
+    frames[i].address = addresses[i];
+    // Format a text representation of the frame based on the information
+    // available.
+    SNPrintF(MutableCStrVector(frames[i].text, kStackWalkMaxTextLen),
+             "%s",
+             symbols[i]);
+    // Make sure line termination is in place.
+    frames[i].text[kStackWalkMaxTextLen - 1] = '\0';
+  }
+
+  free(symbols);
+
+  return frames_count;
+#else  // ndef __GLIBC__
+  return 0;
+#endif  // ndef __GLIBC__
+}
+
+
+// Constants used for mmap.
+static const int kMmapFd = -1;
+static const int kMmapFdOffset = 0;
+
+
+VirtualMemory::VirtualMemory(size_t size) {
+  address_ = mmap(NULL, size, PROT_NONE,
+                  MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE,
+                  kMmapFd, kMmapFdOffset);
+  size_ = size;
+}
+
+
+VirtualMemory::~VirtualMemory() {
+  if (IsReserved()) {
+    if (0 == munmap(address(), size())) address_ = MAP_FAILED;
+  }
+}
+
+
+bool VirtualMemory::IsReserved() {
+  return address_ != MAP_FAILED;
+}
+
+
+bool VirtualMemory::Commit(void* address, size_t size, bool is_executable) {
+  int prot = PROT_READ | PROT_WRITE | (is_executable ? PROT_EXEC : 0);
+
+#ifdef HAS_MAP_FIXED
+  if (MAP_FAILED == mmap(address, size, prot,
+                         MAP_PRIVATE | MAP_ANONYMOUS, // | MAP_FIXED, - Cygwin doesn't have MAP_FIXED
+                         kMmapFd, kMmapFdOffset)) {
+    return false;
+  }
+#else
+  if (mprotect(address, size, prot) != 0) {
+    return false;
+  }
+#endif
+
+  UpdateAllocatedSpaceLimits(address, size);
+  return true;
+}
+
+
+bool VirtualMemory::Uncommit(void* address, size_t size) {
+  return mmap(address, size, PROT_NONE,
+              MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, // | MAP_FIXED, - Cygwin doesn't have MAP_FIXED
+              kMmapFd, kMmapFdOffset) != MAP_FAILED;
+}
+
+
+class ThreadHandle::PlatformData : public Malloced {
+ public:
+  explicit PlatformData(ThreadHandle::Kind kind) {
+    Initialize(kind);
+  }
+
+  void Initialize(ThreadHandle::Kind kind) {
+    switch (kind) {
+      case ThreadHandle::SELF: thread_ = pthread_self(); break;
+      case ThreadHandle::INVALID: thread_ = kNoThread; break;
+    }
+  }
+
+  pthread_t thread_;  // Thread handle for pthread.
+};
+
+
+ThreadHandle::ThreadHandle(Kind kind) {
+  data_ = new PlatformData(kind);
+}
+
+
+void ThreadHandle::Initialize(ThreadHandle::Kind kind) {
+  data_->Initialize(kind);
+}
+
+
+ThreadHandle::~ThreadHandle() {
+  delete data_;
+}
+
+
+bool ThreadHandle::IsSelf() const {
+  return pthread_equal(data_->thread_, pthread_self());
+}
+
+
+bool ThreadHandle::IsValid() const {
+  return data_->thread_ != kNoThread;
+}
+
+
+Thread::Thread() : ThreadHandle(ThreadHandle::INVALID) {
+}
+
+
+Thread::~Thread() {
+}
+
+
+static void* ThreadEntry(void* arg) {
+  Thread* thread = reinterpret_cast<Thread*>(arg);
+  // This is also initialized by the first argument to pthread_create() but we
+  // don't know which thread will run first (the original thread or the new
+  // one) so we initialize it here too.
+  thread->thread_handle_data()->thread_ = pthread_self();
+  ASSERT(thread->IsValid());
+  thread->Run();
+  return NULL;
+}
+
+
+void Thread::Start() {
+  pthread_create(&thread_handle_data()->thread_, NULL, ThreadEntry, this);
+  ASSERT(IsValid());
+}
+
+
+void Thread::Join() {
+  pthread_join(thread_handle_data()->thread_, NULL);
+}
+
+
+Thread::LocalStorageKey Thread::CreateThreadLocalKey() {
+  pthread_key_t key;
+  int result = pthread_key_create(&key, NULL);
+  USE(result);
+  ASSERT(result == 0);
+  return static_cast<LocalStorageKey>(key);
+}
+
+
+void Thread::DeleteThreadLocalKey(LocalStorageKey key) {
+  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
+  int result = pthread_key_delete(pthread_key);
+  USE(result);
+  ASSERT(result == 0);
+}
+
+
+void* Thread::GetThreadLocal(LocalStorageKey key) {
+  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
+  return pthread_getspecific(pthread_key);
+}
+
+
+void Thread::SetThreadLocal(LocalStorageKey key, void* value) {
+  pthread_key_t pthread_key = static_cast<pthread_key_t>(key);
+  pthread_setspecific(pthread_key, value);
+}
+
+
+void Thread::YieldCPU() {
+  sched_yield();
+}
+
+
+class CygwinMutex : public Mutex {
+ public:
+
+  CygwinMutex() {
+    pthread_mutexattr_t attrs;
+    memset(&attrs, 0, sizeof(attrs));
+
+    int result = pthread_mutexattr_init(&attrs);
+    ASSERT(result == 0);
+    result = pthread_mutexattr_settype(&attrs, PTHREAD_MUTEX_RECURSIVE);
+    ASSERT(result == 0);
+    result = pthread_mutex_init(&mutex_, &attrs);
+    ASSERT(result == 0);
+  }
+
+  virtual ~CygwinMutex() { pthread_mutex_destroy(&mutex_); }
+
+  virtual int Lock() {
+    int result = pthread_mutex_lock(&mutex_);
+    return result;
+  }
+
+  virtual int Unlock() {
+    int result = pthread_mutex_unlock(&mutex_);
+    return result;
+  }
+
+ private:
+  pthread_mutex_t mutex_;   // Pthread mutex for POSIX platforms.
+};
+
+
+Mutex* OS::CreateMutex() {
+  return new CygwinMutex();
+}
+
+
+class CygwinSemaphore : public Semaphore {
+ public:
+  explicit CygwinSemaphore(int count) {  sem_init(&sem_, 0, count); }
+  virtual ~CygwinSemaphore() { sem_destroy(&sem_); }
+
+  virtual void Wait();
+  virtual bool Wait(int timeout);
+  virtual void Signal() { sem_post(&sem_); }
+ private:
+  sem_t sem_;
+};
+
+
+void CygwinSemaphore::Wait() {
+  while (true) {
+    int result = sem_wait(&sem_);
+    if (result == 0) return;  // Successfully got semaphore.
+    CHECK(result == -1 && errno == EINTR);  // Signal caused spurious wakeup.
+  }
+}
+
+
+#ifndef TIMEVAL_TO_TIMESPEC
+#define TIMEVAL_TO_TIMESPEC(tv, ts) do {                            \
+    (ts)->tv_sec = (tv)->tv_sec;                                    \
+    (ts)->tv_nsec = (tv)->tv_usec * 1000;                           \
+} while (false)
+#endif
+
+
+bool CygwinSemaphore::Wait(int timeout) {
+  const long kOneSecondMicros = 1000000;  // NOLINT
+
+  // Split timeout into second and nanosecond parts.
+  struct timeval delta;
+  delta.tv_usec = timeout % kOneSecondMicros;
+  delta.tv_sec = timeout / kOneSecondMicros;
+
+  struct timeval current_time;
+  // Get the current time.
+  if (gettimeofday(&current_time, NULL) == -1) {
+    return false;
+  }
+
+  // Calculate time for end of timeout.
+  struct timeval end_time;
+  timeradd(&current_time, &delta, &end_time);
+
+  struct timespec ts;
+  TIMEVAL_TO_TIMESPEC(&end_time, &ts);
+  // Wait for semaphore signalled or timeout.
+  while (true) {
+    int result = sem_timedwait(&sem_, &ts);
+    if (result == 0) return true;  // Successfully got semaphore.
+    if (result > 0) {
+      // For glibc prior to 2.3.4 sem_timedwait returns the error instead of -1.
+      errno = result;
+      result = -1;
+    }
+    if (result == -1 && errno == ETIMEDOUT) return false;  // Timeout.
+    CHECK(result == -1 && errno == EINTR);  // Signal caused spurious wakeup.
+  }
+}
+
+
+Semaphore* OS::CreateSemaphore(int count) {
+  return new CygwinSemaphore(count);
+}
+
+
+#ifdef ENABLE_LOGGING_AND_PROFILING
+
+static Sampler* active_sampler_ = NULL;
+static pthread_t vm_thread_ = 0;
+
+
+#if !defined(__GLIBC__) && (defined(__arm__) || defined(__thumb__))
+// Android runs a fairly new Linux kernel, so signal info is there,
+// but the C library doesn't have the structs defined.
+
+struct sigcontext {
+  uint32_t trap_no;
+  uint32_t error_code;
+  uint32_t oldmask;
+  uint32_t gregs[16];
+  uint32_t arm_cpsr;
+  uint32_t fault_address;
+};
+typedef uint32_t __sigset_t;
+typedef struct sigcontext mcontext_t;
+typedef struct ucontext {
+  uint32_t uc_flags;
+  struct ucontext* uc_link;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  __sigset_t uc_sigmask;
+} ucontext_t;
+enum ArmRegisters {R15 = 15, R13 = 13, R11 = 11};
+
+#endif
+
+
+// A function that determines if a signal handler is called in the context
+// of a VM thread.
+//
+// The problem is that SIGPROF signal can be delivered to an arbitrary thread
+// (see http://code.google.com/p/google-perftools/issues/detail?id=106#c2)
+// So, if the signal is being handled in the context of a non-VM thread,
+// it means that the VM thread is running, and trying to sample its stack can
+// cause a crash.
+static inline bool IsVmThread() {
+  // In the case of a single VM thread, this check is enough.
+  if (pthread_equal(pthread_self(), vm_thread_)) return true;
+  // If there are multiple threads that use VM, they must have a thread id
+  // stored in TLS. To verify that the thread is really executing VM,
+  // we check Top's data. Having that ThreadManager::RestoreThread first
+  // restores ThreadLocalTop from TLS, and only then erases the TLS value,
+  // reading Top::thread_id() should not be affected by races.
+  if (ThreadManager::HasId() && !ThreadManager::IsArchived() &&
+      ThreadManager::CurrentId() == Top::thread_id()) {
+    return true;
+  }
+  return false;
+}
+
+
+static void ProfilerSignalHandler(int signal, siginfo_t* info, void* context) {
+#ifndef V8_HOST_ARCH_MIPS
+  USE(info);
+  if (signal != SIGPROF) return;
+  if (active_sampler_ == NULL) return;
+
+  TickSample sample_obj;
+  TickSample* sample = CpuProfiler::TickSampleEvent();
+  if (sample == NULL) sample = &sample_obj;
+
+  // We always sample the VM state.
+  sample->state = VMState::current_state();
+
+#if 0
+  // If profiling, we extract the current pc and sp.
+  if (active_sampler_->IsProfiling()) {
+    // Extracting the sample from the context is extremely machine dependent.
+    ucontext_t* ucontext = reinterpret_cast<ucontext_t*>(context);
+    mcontext_t& mcontext = ucontext->uc_mcontext;
+#if V8_HOST_ARCH_IA32
+    sample->pc = reinterpret_cast<Address>(mcontext.gregs[REG_EIP]);
+    sample->sp = reinterpret_cast<Address>(mcontext.gregs[REG_ESP]);
+    sample->fp = reinterpret_cast<Address>(mcontext.gregs[REG_EBP]);
+#elif V8_HOST_ARCH_X64
+    sample->pc = reinterpret_cast<Address>(mcontext.gregs[REG_RIP]);
+    sample->sp = reinterpret_cast<Address>(mcontext.gregs[REG_RSP]);
+    sample->fp = reinterpret_cast<Address>(mcontext.gregs[REG_RBP]);
+#elif V8_HOST_ARCH_ARM
+// An undefined macro evaluates to 0, so this applies to Android's Bionic also.
+#if (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
+    sample->pc = reinterpret_cast<Address>(mcontext.gregs[R15]);
+    sample->sp = reinterpret_cast<Address>(mcontext.gregs[R13]);
+    sample->fp = reinterpret_cast<Address>(mcontext.gregs[R11]);
+#else
+    sample->pc = reinterpret_cast<Address>(mcontext.arm_pc);
+    sample->sp = reinterpret_cast<Address>(mcontext.arm_sp);
+    sample->fp = reinterpret_cast<Address>(mcontext.arm_fp);
+#endif
+#elif V8_HOST_ARCH_MIPS
+    // Implement this on MIPS.
+    UNIMPLEMENTED();
+#endif
+    if (IsVmThread()) {
+      active_sampler_->SampleStack(sample);
+    }
+  }
+#endif
+
+  active_sampler_->Tick(sample);
+#endif
+}
+
+
+class Sampler::PlatformData : public Malloced {
+ public:
+  PlatformData() {
+    signal_handler_installed_ = false;
+  }
+
+  bool signal_handler_installed_;
+  struct sigaction old_signal_handler_;
+  struct itimerval old_timer_value_;
+};
+
+
+Sampler::Sampler(int interval, bool profiling)
+    : interval_(interval), profiling_(profiling), active_(false) {
+  data_ = new PlatformData();
+}
+
+
+Sampler::~Sampler() {
+  delete data_;
+}
+
+
+void Sampler::Start() {
+  // There can only be one active sampler at the time on POSIX
+  // platforms.
+  if (active_sampler_ != NULL) return;
+
+  vm_thread_ = pthread_self();
+
+  // Request profiling signals.
+  struct sigaction sa;
+  sa.sa_sigaction = ProfilerSignalHandler;
+  sigemptyset(&sa.sa_mask);
+  sa.sa_flags = SA_SIGINFO;
+  if (sigaction(SIGPROF, &sa, &data_->old_signal_handler_) != 0) return;
+  data_->signal_handler_installed_ = true;
+
+  // Set the itimer to generate a tick for each interval.
+  itimerval itimer;
+  itimer.it_interval.tv_sec = interval_ / 1000;
+  itimer.it_interval.tv_usec = (interval_ % 1000) * 1000;
+  itimer.it_value.tv_sec = itimer.it_interval.tv_sec;
+  itimer.it_value.tv_usec = itimer.it_interval.tv_usec;
+  setitimer(ITIMER_PROF, &itimer, &data_->old_timer_value_);
+
+  // Set this sampler as the active sampler.
+  active_sampler_ = this;
+  active_ = true;
+}
+
+
+void Sampler::Stop() {
+  // Restore old signal handler
+  if (data_->signal_handler_installed_) {
+    setitimer(ITIMER_PROF, &data_->old_timer_value_, NULL);
+    sigaction(SIGPROF, &data_->old_signal_handler_, 0);
+    data_->signal_handler_installed_ = false;
+  }
+
+  // This sampler is no longer the active sampler.
+  active_sampler_ = NULL;
+  active_ = false;
+}
+
+
+#endif  // ENABLE_LOGGING_AND_PROFILING
+
+} }  // namespace v8::internal

deps/v8/src/platform.h

@@ -360,7 +360,11 @@ class ThreadHandle {
 class Thread: public ThreadHandle {
  public:
   // Opaque data type for thread-local storage keys.
+#ifndef __CYGWIN__
   enum LocalStorageKey {};
+#else
+  typedef void *LocalStorageKey;
+#endif
 
   // Create new thread.
   Thread();

deps/v8/tools/utils.py

@@ -59,6 +59,8 @@ def GuessOS():
     return 'openbsd'
   elif id == 'SunOS':
     return 'solaris'
+  elif id.find('CYGWIN') >= 0:
+    return 'cygwin'
   else:
     return None
 

src/node.cc

@@ -730,8 +730,10 @@ const char *signo_string(int signo) {
 #endif
 
 #ifdef SIGPWR
+# if SIGPWR != SIGLOST
   SIGNO_CASE(SIGPWR);
 # endif
+#endif
 
 #ifdef SIGSYS
   SIGNO_CASE(SIGSYS);
@@ -2193,4 +2195,3 @@ int main(int argc, char *argv[]) {
 #endif  // NDEBUG
   return 0;
 }
-

wscript

@@ -137,7 +137,7 @@ def configure(conf):
   conf.env["USE_SHARED_LIBEV"] = o.shared_libev or o.shared_libev_includes or o.shared_libev_libpath
 
   conf.check(lib='dl', uselib_store='DL')
-  if not sys.platform.startswith("sunos"):
+  if not sys.platform.startswith("sunos") and not sys.platform.startswith("cygwin"):
     conf.env.append_value("CCFLAGS", "-rdynamic")
     conf.env.append_value("LINKFLAGS_DL", "-rdynamic")
 
@@ -247,7 +247,7 @@ def configure(conf):
     conf.env.append_value ('CCFLAGS', '-threads')
     conf.env.append_value ('CXXFLAGS', '-threads')
     #conf.env.append_value ('LINKFLAGS', ' -threads')
-  else:
+  elif not sys.platform.startswith("cygwin"):
     threadflags='-pthread'
     conf.env.append_value ('CCFLAGS', threadflags)
     conf.env.append_value ('CXXFLAGS', threadflags)