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Re: patch8.diff updated Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate

From: Svante Signell <svante dot signell at gmail dot com>
To: Samuel Thibault <samuel dot thibault at gnu dot org>
Cc: Thomas Schwinge <thomas at codesourcery dot com>, Ian Lance Taylor <iant at google dot com>, gcc-patches at gcc dot gnu dot org, bug-hurd at gnu dot org, Roland McGrath <roland at hack dot frob dot com>
Date: Wed, 21 May 2014 09:47:08 +0200
Subject: Re: patch8.diff updated Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
Authentication-results: sourceware.org; auth=none
References: <1399027556 dot 8487 dot 12 dot camel at PackardBell-PC> <20140502105234 dot GM6577 at type> <1399363609 dot 13092 dot 29 dot camel at G3620 dot my dot own dot domain> <20140506125157 dot GH5788 at type dot bordeaux dot inria dot fr> <1399381520 dot 13092 dot 67 dot camel at G3620 dot my dot own dot domain> <20140506130755 dot GL5788 at type dot bordeaux dot inria dot fr> <1399382738 dot 13092 dot 70 dot camel at G3620 dot my dot own dot domain> <20140506132605 dot GD1010 at type dot bordeaux dot inria dot fr> <1399450727 dot 13092 dot 106 dot camel at G3620 dot my dot own dot domain> <1400227385 dot 10012 dot 98 dot camel at G3620 dot my dot own dot domain> <20140520232704 dot GM5623 at type dot youpi dot perso dot aquilenet dot fr>
Reply-to: svante dot signell at gmail dot com

On Wed, 2014-05-21 at 01:27 +0200, Samuel Thibault wrote:
> Svante Signell, le Fri 16 May 2014 10:03:05 +0200, a écrit :
> > is used in gcc-4.9-4.9.0/src/libgo/go/net/fd_unix.go:
> > func dupCloseOnExec(fd int) (newfd int, err error) {
> > if atomic.LoadInt32(&tryDupCloexec) == 1 && syscall.F_DUPFD_CLOEXEC!=0 {
> > r0, _, e1 := syscall.Syscall(syscall.SYS_FCNTL, uintptr(fd),
> > syscall.F_DUPFD_CLOEXEC, 0)
> 
> That code can not work as it is, fcntl is not a system call on
> GNU/Hurd. Why isn't gccgo just using the C fcntl function?  That one
> will just work and be portable.

I don't know, I'm not a go developer. Ask Ian.

> > +# Special treatment of EWOULDBLOCK for GNU/Hurd
> > +# /usr/include/bits/errno.h: #define EWOULDBLOCK EAGAIN
> > +if egrep 'define EWOULDBLOCK EAGAIN' gen-sysinfo.go > /dev/null 2>&1; then
> > +  egrep '^const EWOULDBLOCK = Errno(_EWOULDBLOCK)' ${OUT} | \
> > +    sed -i.bak -e 's/_EWOULDBLOCK/_EAGAIN/' ${OUT}
> 
> I don't understand why you both pass the output of egrep to sed, and you
> give the -i option to sed. AIUI, the
> egrep '^const EWOULDBLOCK = Errno(_EWOULDBLOCK)'
> part is completely unused, so you can just drop it.

Well, the -i option is to get a backup copy for debugging purposes, can
safely be removed. BTW: On Linux no .bak files are generated, as
expected. Regarding the code I attach mksysinfo.sh and config.h.hurd  to
be run on Hurd and config.h.linux to be run on Linux. Good luck making
the patch better. It worked for me, but as I wrote before I'm no
sed/grep expert.

/* config.h.  Generated from config.h.in by configure.  */
/* config.h.in.  Generated from configure.ac by autoheader.  */

/* Define if building universal (internal helper macro) */
/* #undef AC_APPLE_UNIVERSAL_BUILD */

/* Define to the flags needed for the .section .eh_frame directive. */
#define EH_FRAME_FLAGS "aw"

/* Define to 1 if you have the `accept4' function. */
#define HAVE_ACCEPT4 1

/* Define to 1 if you have the `acosl' function. */
#define HAVE_ACOSL 1

/* Define to 1 if you have the `asinl' function. */
#define HAVE_ASINL 1

/* Define if your assembler supports GNU comdat group syntax. */
#define HAVE_AS_COMDAT_GAS 1

/* Define if your assembler supports unwind section type. */
/* #undef HAVE_AS_X86_64_UNWIND_SECTION_TYPE */

/* Define if your assembler supports PC relative relocs. */
#define HAVE_AS_X86_PCREL 1

/* Define to 1 if you have the `atan2l' function. */
#define HAVE_ATAN2L 1

/* Define to 1 if you have the `atanl' function. */
#define HAVE_ATANL 1

/* Define to 1 if you have the `cosl' function. */
#define HAVE_COSL 1

/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H 1

/* Define to 1 if you have the `dl_iterate_phdr' function. */
#define HAVE_DL_ITERATE_PHDR 1

/* Define to 1 if you have the `dup3' function. */
#define HAVE_DUP3 1

/* Define to 1 if you have the `epoll_create1' function. */
/* #undef HAVE_EPOLL_CREATE1 */

/* Define to 1 if you have the `expl' function. */
#define HAVE_EXPL 1

/* Define to 1 if you have the `expm1l' function. */
#define HAVE_EXPM1L 1

/* Define to 1 if you have the `faccessat' function. */
#define HAVE_FACCESSAT 1

/* Define to 1 if you have the `fallocate' function. */
/* #undef HAVE_FALLOCATE */

/* Define to 1 if you have the `fchmodat' function. */
#define HAVE_FCHMODAT 1

/* Define to 1 if you have the `fchownat' function. */
#define HAVE_FCHOWNAT 1

/* Define to 1 if you have the `futimesat' function. */
/* #undef HAVE_FUTIMESAT */

/* Define if _Unwind_GetIPInfo is available. */
#define HAVE_GETIPINFO 1

/* Define to 1 if you have the `getxattr' function. */
#define HAVE_GETXATTR 1

/* Define to 1 if you have the `inotify_add_watch' function. */
/* #undef HAVE_INOTIFY_ADD_WATCH */

/* Define to 1 if you have the `inotify_init' function. */
/* #undef HAVE_INOTIFY_INIT */

/* Define to 1 if you have the `inotify_init1' function. */
/* #undef HAVE_INOTIFY_INIT1 */

/* Define to 1 if you have the `inotify_rm_watch' function. */
/* #undef HAVE_INOTIFY_RM_WATCH */

/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1

/* Define to 1 if you have the `ldexpl' function. */
#define HAVE_LDEXPL 1

/* Define to 1 if you have the <linux/ether.h> header file. */
/* #undef HAVE_LINUX_ETHER_H */

/* Define to 1 if you have the <linux/filter.h> header file. */
/* #undef HAVE_LINUX_FILTER_H */

/* Define to 1 if you have the <linux/fs.h> header file. */
/* #undef HAVE_LINUX_FS_H */

/* Define to 1 if you have the <linux/if_addr.h> header file. */
/* #undef HAVE_LINUX_IF_ADDR_H */

/* Define to 1 if you have the <linux/if_ether.h> header file. */
/* #undef HAVE_LINUX_IF_ETHER_H */

/* Define to 1 if you have the <linux/if_tun.h> header file. */
/* #undef HAVE_LINUX_IF_TUN_H */

/* Define to 1 if you have the <linux/netlink.h> header file. */
/* #undef HAVE_LINUX_NETLINK_H */

/* Define to 1 if you have the <linux/reboot.h> header file. */
/* #undef HAVE_LINUX_REBOOT_H */

/* Define to 1 if you have the <linux/rtnetlink.h> header file. */
/* #undef HAVE_LINUX_RTNETLINK_H */

/* Define to 1 if you have the `listxattr' function. */
#define HAVE_LISTXATTR 1

/* Define to 1 if the system has the type `loff_t'. */
#define HAVE_LOFF_T 1

/* Define to 1 if you have the `log10l' function. */
#define HAVE_LOG10L 1

/* Define to 1 if you have the `log1pl' function. */
#define HAVE_LOG1PL 1

/* Define to 1 if you have the `logl' function. */
#define HAVE_LOGL 1

/* Define to 1 if you have the `matherr' function. */
#define HAVE_MATHERR 1

/* Define to 1 if you have the <memory.h> header file. */
#define HAVE_MEMORY_H 1

/* Define to 1 if you have the `mincore' function. */
/* #undef HAVE_MINCORE */

/* Define to 1 if you have the `mkdirat' function. */
#define HAVE_MKDIRAT 1

/* Define to 1 if you have the `mknodat' function. */
#define HAVE_MKNODAT 1

/* Define to 1 if you have the <netinet/icmp6.h> header file. */
#define HAVE_NETINET_ICMP6_H 1

/* Define to 1 if you have the <netinet/if_ether.h> header file. */
#define HAVE_NETINET_IF_ETHER_H 1

/* Define to 1 if you have the <netinet/in_syst.h> header file. */
/* #undef HAVE_NETINET_IN_SYST_H */

/* Define to 1 if you have the <netinet/ip.h> header file. */
#define HAVE_NETINET_IP_H 1

/* Define to 1 if you have the <netinet/ip_mroute.h> header file. */
/* #undef HAVE_NETINET_IP_MROUTE_H */

/* Define to 1 if you have the <netpacket/packet.h> header file. */
/* #undef HAVE_NETPACKET_PACKET_H */

/* Define to 1 if you have the <net/if_arp.h> header file. */
#define HAVE_NET_IF_ARP_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 the <net/route.h> header file. */
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/* Define to 1 if the system has the type `off64_t'. */
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/* Define to 1 if you have the `open64' function. */
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/* Define to 1 if you have the `openat' function. */
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/* Define to 1 if you have the `pipe2' function. */
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/* Define to 1 if you have the `removexattr' function. */
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/* Define to 1 if you have the `renameat' function. */
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/* Define to 1 if you have the `sem_timedwait' function. */
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/* Define to 1 if you have the `setenv' function. */
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/* Define to 1 if you have the `setxattr' function. */
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/* Define to 1 if you have the `sinl' function. */
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/* Define to 1 if you have the `splice' function. */
/* #undef HAVE_SPLICE */

/* Define to 1 if you have the <stdint.h> header file. */
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/* Define to 1 if you have the <stdlib.h> header file. */
#define HAVE_STDLIB_H 1

/* Define to 1 if you have the `strerror_r' function. */
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/* 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 `strsignal' function. */
#define HAVE_STRSIGNAL 1

/* Define to 1 if <math.h> defines struct exception */
#define HAVE_STRUCT_EXCEPTION 1

/* Define to 1 if the compiler provides the __sync_add_and_fetch function for
   uint64 */
#define HAVE_SYNC_ADD_AND_FETCH_8 1

/* Define to 1 if the compiler provides the __sync_bool_compare_and_swap
   function for uint32 */
#define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_4 1

/* Define to 1 if the compiler provides the __sync_bool_compare_and_swap
   function for uint64 */
#define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_8 1

/* Define to 1 if the compiler provides the __sync_fetch_and_add function for
   uint32 */
#define HAVE_SYNC_FETCH_AND_ADD_4 1

/* Define to 1 if you have the `sync_file_range' function. */
/* #undef HAVE_SYNC_FILE_RANGE */

/* Define to 1 if you have the <syscall.h> header file. */
#define HAVE_SYSCALL_H 1

/* Define to 1 if you have the <sys/epoll.h> header file. */
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/* Define to 1 if you have the <sys/file.h> header file. */
#define HAVE_SYS_FILE_H 1

/* Define to 1 if you have the <sys/inotify.h> header file. */
/* #undef HAVE_SYS_INOTIFY_H */

/* Define to 1 if you have the <sys/mman.h> header file. */
#define HAVE_SYS_MMAN_H 1

/* Define to 1 if you have the <sys/mount.h> header file. */
/* #undef HAVE_SYS_MOUNT_H */

/* Define to 1 if you have the <sys/prctl.h> header file. */
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/* Define to 1 if you have the <sys/ptrace.h> header file. */
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/* Define to 1 if you have the <sys/select.h> header file. */
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/* Define to 1 if you have the <sys/socket.h> header file. */
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/* Define to 1 if you have the <sys/statfs.h> header file. */
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/* Define to 1 if you have the <sys/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H 1

/* Define to 1 if you have the <sys/sysinfo.h> header file. */
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/* Define to 1 if you have the <sys/timex.h> header file. */
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/* 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/user.h> header file. */
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/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H 1

/* Define to 1 if you have the <sys/vfs.h> header file. */
#define HAVE_SYS_VFS_H 1

/* Define to 1 if you have the `tanl' function. */
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/* Define to 1 if you have the `tee' function. */
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/* Define to 1 if you have the <unistd.h> header file. */
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/* Define to 1 if you have the `unlinkat' function. */
#define HAVE_UNLINKAT 1

/* Define to 1 if you have the `unshare' function. */
/* #undef HAVE_UNSHARE */

/* Define to 1 if you have the <ustat.h> header file and it works. */
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/* Define to 1 if you have the `utimensat' function. */
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/* Define to 1 if you have the <utime.h> header file. */
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/* Define to 1 if you have the `wait4' function. */
#define HAVE_WAIT4 1

/* Define if the C++ compiler is configured for setjmp/longjmp exceptions. */
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/* Define if the linker support split stack adjustments */
#define LINKER_SUPPORTS_SPLIT_STACK 1

/* Define to the sub-directory in which libtool stores uninstalled libraries.
   */
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/* Define if makecontext expects top of stack in uc_stack. */
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/* Name of package */
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/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT ""

/* Define to the full name of this package. */
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/* Define to the full name and version of this package. */
#define PACKAGE_STRING "package-unused version-unused"

/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "libgo"

/* Define to the home page for this package. */
#define PACKAGE_URL ""

/* Define to the version of this package. */
#define PACKAGE_VERSION "version-unused"

/* Define if setcontext clobbers TLS variables */
/* #undef SETCONTEXT_CLOBBERS_TLS */

/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 4

/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1

/* Define if we're to use libffi. */
#define USE_LIBFFI 1

/* Define if the compiler supports -fsplit-stack */
#define USING_SPLIT_STACK 1

/* Version number of package */
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/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
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#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 `long int' if <sys/types.h> does not define. */
/* #undef off_t */

Attachment: mksysinfo.sh
Description: application/shellscript

/* config.h.  Generated from config.h.in by configure.  */
/* config.h.in.  Generated from configure.ac by autoheader.  */

/* Define if building universal (internal helper macro) */
/* #undef AC_APPLE_UNIVERSAL_BUILD */

/* Define to the flags needed for the .section .eh_frame directive. */
#define EH_FRAME_FLAGS "aw"

/* Define to 1 if you have the `accept4' function. */
#define HAVE_ACCEPT4 1

/* Define to 1 if you have the `acosl' function. */
#define HAVE_ACOSL 1

/* Define to 1 if you have the `asinl' function. */
#define HAVE_ASINL 1

/* Define if your assembler supports GNU comdat group syntax. */
#define HAVE_AS_COMDAT_GAS 1

/* Define if your assembler supports unwind section type. */
#define HAVE_AS_X86_64_UNWIND_SECTION_TYPE 1

/* Define if your assembler supports PC relative relocs. */
#define HAVE_AS_X86_PCREL 1

/* Define to 1 if you have the `atan2l' function. */
#define HAVE_ATAN2L 1

/* Define to 1 if you have the `atanl' function. */
#define HAVE_ATANL 1

/* Define to 1 if you have the `cosl' function. */
#define HAVE_COSL 1

/* Define to 1 if you have the <dlfcn.h> header file. */
#define HAVE_DLFCN_H 1

/* Define to 1 if you have the `dl_iterate_phdr' function. */
#define HAVE_DL_ITERATE_PHDR 1

/* Define to 1 if you have the `dup3' function. */
#define HAVE_DUP3 1

/* Define to 1 if you have the `epoll_create1' function. */
#define HAVE_EPOLL_CREATE1 1

/* Define to 1 if you have the `expl' function. */
#define HAVE_EXPL 1

/* Define to 1 if you have the `expm1l' function. */
#define HAVE_EXPM1L 1

/* Define to 1 if you have the `faccessat' function. */
#define HAVE_FACCESSAT 1

/* Define to 1 if you have the `fallocate' function. */
#define HAVE_FALLOCATE 1

/* Define to 1 if you have the `fchmodat' function. */
#define HAVE_FCHMODAT 1

/* Define to 1 if you have the `fchownat' function. */
#define HAVE_FCHOWNAT 1

/* Define to 1 if you have the `futimesat' function. */
#define HAVE_FUTIMESAT 1

/* Define if _Unwind_GetIPInfo is available. */
#define HAVE_GETIPINFO 1

/* Define to 1 if you have the `getxattr' function. */
#define HAVE_GETXATTR 1

/* Define to 1 if you have the `inotify_add_watch' function. */
#define HAVE_INOTIFY_ADD_WATCH 1

/* Define to 1 if you have the `inotify_init' function. */
#define HAVE_INOTIFY_INIT 1

/* Define to 1 if you have the `inotify_init1' function. */
#define HAVE_INOTIFY_INIT1 1

/* Define to 1 if you have the `inotify_rm_watch' function. */
#define HAVE_INOTIFY_RM_WATCH 1

/* Define to 1 if you have the <inttypes.h> header file. */
#define HAVE_INTTYPES_H 1

/* Define to 1 if you have the `ldexpl' function. */
#define HAVE_LDEXPL 1

/* Define to 1 if you have the <linux/ether.h> header file. */
/* #undef HAVE_LINUX_ETHER_H */

/* Define to 1 if you have the <linux/filter.h> header file. */
#define HAVE_LINUX_FILTER_H 1

/* Define to 1 if you have the <linux/fs.h> header file. */
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/* Define to 1 if you have the <linux/if_addr.h> header file. */
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/* Define to 1 if you have the <linux/if_ether.h> header file. */
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/* Define to 1 if you have the <linux/if_tun.h> header file. */
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/* Define to 1 if you have the <linux/netlink.h> header file. */
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/* Define to 1 if you have the <linux/reboot.h> header file. */
#define HAVE_LINUX_REBOOT_H 1

/* Define to 1 if you have the <linux/rtnetlink.h> header file. */
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/* Define to 1 if you have the `listxattr' function. */
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/* Define to 1 if the system has the type `loff_t'. */
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/* Define to 1 if you have the `log10l' function. */
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/* Define to 1 if you have the `log1pl' function. */
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/* Define to 1 if you have the `logl' function. */
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/* Define to 1 if you have the `matherr' function. */
#define HAVE_MATHERR 1

/* Define to 1 if you have the <memory.h> header file. */
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/* Define to 1 if you have the `mincore' function. */
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/* Define to 1 if you have the `mkdirat' function. */
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/* Define to 1 if you have the `mknodat' function. */
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/* Define to 1 if you have the <netinet/icmp6.h> header file. */
#define HAVE_NETINET_ICMP6_H 1

/* Define to 1 if you have the <netinet/if_ether.h> header file. */
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/* Define to 1 if you have the <netinet/in_syst.h> header file. */
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/* Define to 1 if you have the <netinet/ip.h> header file. */
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/* Define to 1 if you have the <netinet/ip_mroute.h> header file. */
/* #undef HAVE_NETINET_IP_MROUTE_H */

/* Define to 1 if you have the <netpacket/packet.h> header file. */
#define HAVE_NETPACKET_PACKET_H 1

/* Define to 1 if you have the <net/if_arp.h> header file. */
#define HAVE_NET_IF_ARP_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 the <net/route.h> header file. */
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/* Define to 1 if the system has the type `off64_t'. */
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/* Define to 1 if you have the `open64' function. */
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/* Define to 1 if you have the `openat' function. */
#define HAVE_OPENAT 1

/* Define to 1 if you have the `pipe2' function. */
#define HAVE_PIPE2 1

/* Define to 1 if you have the `removexattr' function. */
#define HAVE_REMOVEXATTR 1

/* Define to 1 if you have the `renameat' function. */
#define HAVE_RENAMEAT 1

/* Define to 1 if you have the `sem_timedwait' function. */
#define HAVE_SEM_TIMEDWAIT 1

/* Define to 1 if you have the `setenv' function. */
#define HAVE_SETENV 1

/* Define to 1 if you have the `setxattr' function. */
#define HAVE_SETXATTR 1

/* Define to 1 if you have the `sinl' function. */
#define HAVE_SINL 1

/* Define to 1 if you have the `splice' function. */
#define HAVE_SPLICE 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 `strerror_r' function. */
#define HAVE_STRERROR_R 1

/* 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 `strsignal' function. */
#define HAVE_STRSIGNAL 1

/* Define to 1 if <math.h> defines struct exception */
#define HAVE_STRUCT_EXCEPTION 1

/* Define to 1 if the compiler provides the __sync_add_and_fetch function for
   uint64 */
#define HAVE_SYNC_ADD_AND_FETCH_8 1

/* Define to 1 if the compiler provides the __sync_bool_compare_and_swap
   function for uint32 */
#define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_4 1

/* Define to 1 if the compiler provides the __sync_bool_compare_and_swap
   function for uint64 */
#define HAVE_SYNC_BOOL_COMPARE_AND_SWAP_8 1

/* Define to 1 if the compiler provides the __sync_fetch_and_add function for
   uint32 */
#define HAVE_SYNC_FETCH_AND_ADD_4 1

/* Define to 1 if you have the `sync_file_range' function. */
#define HAVE_SYNC_FILE_RANGE 1

/* Define to 1 if you have the <syscall.h> header file. */
#define HAVE_SYSCALL_H 1

/* Define to 1 if you have the <sys/epoll.h> header file. */
#define HAVE_SYS_EPOLL_H 1

/* Define to 1 if you have the <sys/file.h> header file. */
#define HAVE_SYS_FILE_H 1

/* Define to 1 if you have the <sys/inotify.h> header file. */
#define HAVE_SYS_INOTIFY_H 1

/* Define to 1 if you have the <sys/mman.h> header file. */
#define HAVE_SYS_MMAN_H 1

/* Define to 1 if you have the <sys/mount.h> header file. */
#define HAVE_SYS_MOUNT_H 1

/* Define to 1 if you have the <sys/prctl.h> header file. */
#define HAVE_SYS_PRCTL_H 1

/* Define to 1 if you have the <sys/ptrace.h> header file. */
#define HAVE_SYS_PTRACE_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/statfs.h> header file. */
#define HAVE_SYS_STATFS_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/syscall.h> header file. */
#define HAVE_SYS_SYSCALL_H 1

/* Define to 1 if you have the <sys/sysinfo.h> header file. */
#define HAVE_SYS_SYSINFO_H 1

/* Define to 1 if you have the <sys/timex.h> header file. */
#define HAVE_SYS_TIMEX_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/user.h> header file. */
#define HAVE_SYS_USER_H 1

/* Define to 1 if you have the <sys/utsname.h> header file. */
#define HAVE_SYS_UTSNAME_H 1

/* Define to 1 if you have the <sys/vfs.h> header file. */
#define HAVE_SYS_VFS_H 1

/* Define to 1 if you have the `tanl' function. */
#define HAVE_TANL 1

/* Define to 1 if you have the `tee' function. */
#define HAVE_TEE 1

/* Define to 1 if you have the <unistd.h> header file. */
#define HAVE_UNISTD_H 1

/* Define to 1 if you have the `unlinkat' function. */
#define HAVE_UNLINKAT 1

/* Define to 1 if you have the `unshare' function. */
#define HAVE_UNSHARE 1

/* Define to 1 if you have the <ustat.h> header file and it works. */
#define HAVE_USTAT_H 1

/* Define to 1 if you have the `utimensat' function. */
#define HAVE_UTIMENSAT 1

/* Define to 1 if you have the <utime.h> header file. */
#define HAVE_UTIME_H 1

/* Define to 1 if you have the `wait4' function. */
#define HAVE_WAIT4 1

/* Define if the C++ compiler is configured for setjmp/longjmp exceptions. */
/* #undef LIBGO_SJLJ_EXCEPTIONS */

/* Define if the linker support split stack adjustments */
#define LINKER_SUPPORTS_SPLIT_STACK 1

/* Define to the sub-directory in which libtool stores uninstalled libraries.
   */
#define LT_OBJDIR ".libs/"

/* Define if makecontext expects top of stack in uc_stack. */
/* #undef MAKECONTEXT_STACK_TOP */

/* Name of package */
/* #undef PACKAGE */

/* Define to the address where bug reports for this package should be sent. */
#define PACKAGE_BUGREPORT ""

/* Define to the full name of this package. */
#define PACKAGE_NAME "package-unused"

/* Define to the full name and version of this package. */
#define PACKAGE_STRING "package-unused version-unused"

/* Define to the one symbol short name of this package. */
#define PACKAGE_TARNAME "libgo"

/* Define to the home page for this package. */
#define PACKAGE_URL ""

/* Define to the version of this package. */
#define PACKAGE_VERSION "version-unused"

/* Define if setcontext clobbers TLS variables */
/* #undef SETCONTEXT_CLOBBERS_TLS */

/* The size of `void *', as computed by sizeof. */
#define SIZEOF_VOID_P 8

/* Define to 1 if you have the ANSI C header files. */
#define STDC_HEADERS 1

/* Define if we're to use libffi. */
#define USE_LIBFFI 1

/* Define if the compiler supports -fsplit-stack */
#define USING_SPLIT_STACK 1

/* Version number of package */
/* #undef VERSION */

/* 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 `long int' if <sys/types.h> does not define. */
/* #undef off_t */

Follow-Ups:
- Re: patch8.diff updated Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Samuel Thibault
- Re: patch8.diff updated Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Ian Lance Taylor

References:
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Svante Signell
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Samuel Thibault
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Svante Signell
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Samuel Thibault
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Svante Signell
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Samuel Thibault
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Svante Signell
- Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Samuel Thibault
- patch1.diff updated + test results Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Svante Signell
- Re: patch8.diff updated Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Svante Signell
- Re: patch8.diff updated Was: Re: GCC's -fsplit-stack disturbing Mach's vm_allocate
  - From: Samuel Thibault

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