6e5fcd99df
Summary: For CloudABI we need to put two things on the stack of new processes: the argument data (a binary blob; not strings) and a startup data structure. The startup data structure contains interesting things such as a pointer to the ELF program header, the thread ID of the initial thread, a stack smashing protection canary, and a pointer to the argument data. Fetching system call arguments and setting the return value is similar to FreeBSD. The only differences are that system call 0 does not exist and that we call into cloudabi_convert_errno() to convert the error code. We also need this function in a couple of other places, so we'd better reuse it here. Reviewers: dchagin, kib Reviewed By: kib Subscribers: imp Differential Revision: https://reviews.freebsd.org/D3098
122 lines
4.3 KiB
C
122 lines
4.3 KiB
C
/*-
|
|
* Copyright (c) 2015 Nuxi, https://nuxi.nl/
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
|
|
#include <compat/cloudabi/cloudabi_syscalldefs.h>
|
|
#include <compat/cloudabi/cloudabi_util.h>
|
|
|
|
/* Converts a FreeBSD errno to a CloudABI errno. */
|
|
cloudabi_errno_t
|
|
cloudabi_convert_errno(int error)
|
|
{
|
|
static const int table[] = {
|
|
[E2BIG] = CLOUDABI_E2BIG,
|
|
[EACCES] = CLOUDABI_EACCES,
|
|
[EADDRINUSE] = CLOUDABI_EADDRINUSE,
|
|
[EADDRNOTAVAIL] = CLOUDABI_EADDRNOTAVAIL,
|
|
[EAFNOSUPPORT] = CLOUDABI_EAFNOSUPPORT,
|
|
[EAGAIN] = CLOUDABI_EAGAIN,
|
|
[EALREADY] = CLOUDABI_EALREADY,
|
|
[EBADF] = CLOUDABI_EBADF,
|
|
[EBADMSG] = CLOUDABI_EBADMSG,
|
|
[EBUSY] = CLOUDABI_EBUSY,
|
|
[ECANCELED] = CLOUDABI_ECANCELED,
|
|
[ECHILD] = CLOUDABI_ECHILD,
|
|
[ECONNABORTED] = CLOUDABI_ECONNABORTED,
|
|
[ECONNREFUSED] = CLOUDABI_ECONNREFUSED,
|
|
[ECONNRESET] = CLOUDABI_ECONNRESET,
|
|
[EDEADLK] = CLOUDABI_EDEADLK,
|
|
[EDESTADDRREQ] = CLOUDABI_EDESTADDRREQ,
|
|
[EDOM] = CLOUDABI_EDOM,
|
|
[EDQUOT] = CLOUDABI_EDQUOT,
|
|
[EEXIST] = CLOUDABI_EEXIST,
|
|
[EFAULT] = CLOUDABI_EFAULT,
|
|
[EFBIG] = CLOUDABI_EFBIG,
|
|
[EHOSTUNREACH] = CLOUDABI_EHOSTUNREACH,
|
|
[EIDRM] = CLOUDABI_EIDRM,
|
|
[EILSEQ] = CLOUDABI_EILSEQ,
|
|
[EINPROGRESS] = CLOUDABI_EINPROGRESS,
|
|
[EINTR] = CLOUDABI_EINTR,
|
|
[EINVAL] = CLOUDABI_EINVAL,
|
|
[EIO] = CLOUDABI_EIO,
|
|
[EISCONN] = CLOUDABI_EISCONN,
|
|
[EISDIR] = CLOUDABI_EISDIR,
|
|
[ELOOP] = CLOUDABI_ELOOP,
|
|
[EMFILE] = CLOUDABI_EMFILE,
|
|
[EMLINK] = CLOUDABI_EMLINK,
|
|
[EMSGSIZE] = CLOUDABI_EMSGSIZE,
|
|
[EMULTIHOP] = CLOUDABI_EMULTIHOP,
|
|
[ENAMETOOLONG] = CLOUDABI_ENAMETOOLONG,
|
|
[ENETDOWN] = CLOUDABI_ENETDOWN,
|
|
[ENETRESET] = CLOUDABI_ENETRESET,
|
|
[ENETUNREACH] = CLOUDABI_ENETUNREACH,
|
|
[ENFILE] = CLOUDABI_ENFILE,
|
|
[ENOBUFS] = CLOUDABI_ENOBUFS,
|
|
[ENODEV] = CLOUDABI_ENODEV,
|
|
[ENOENT] = CLOUDABI_ENOENT,
|
|
[ENOEXEC] = CLOUDABI_ENOEXEC,
|
|
[ENOLCK] = CLOUDABI_ENOLCK,
|
|
[ENOLINK] = CLOUDABI_ENOLINK,
|
|
[ENOMEM] = CLOUDABI_ENOMEM,
|
|
[ENOMSG] = CLOUDABI_ENOMSG,
|
|
[ENOPROTOOPT] = CLOUDABI_ENOPROTOOPT,
|
|
[ENOSPC] = CLOUDABI_ENOSPC,
|
|
[ENOSYS] = CLOUDABI_ENOSYS,
|
|
[ENOTCONN] = CLOUDABI_ENOTCONN,
|
|
[ENOTDIR] = CLOUDABI_ENOTDIR,
|
|
[ENOTEMPTY] = CLOUDABI_ENOTEMPTY,
|
|
[ENOTRECOVERABLE] = CLOUDABI_ENOTRECOVERABLE,
|
|
[ENOTSOCK] = CLOUDABI_ENOTSOCK,
|
|
[ENOTSUP] = CLOUDABI_ENOTSUP,
|
|
[ENOTTY] = CLOUDABI_ENOTTY,
|
|
[ENXIO] = CLOUDABI_ENXIO,
|
|
[EOVERFLOW] = CLOUDABI_EOVERFLOW,
|
|
[EOWNERDEAD] = CLOUDABI_EOWNERDEAD,
|
|
[EPERM] = CLOUDABI_EPERM,
|
|
[EPIPE] = CLOUDABI_EPIPE,
|
|
[EPROTO] = CLOUDABI_EPROTO,
|
|
[EPROTONOSUPPORT] = CLOUDABI_EPROTONOSUPPORT,
|
|
[EPROTOTYPE] = CLOUDABI_EPROTOTYPE,
|
|
[ERANGE] = CLOUDABI_ERANGE,
|
|
[EROFS] = CLOUDABI_EROFS,
|
|
[ESPIPE] = CLOUDABI_ESPIPE,
|
|
[ESRCH] = CLOUDABI_ESRCH,
|
|
[ESTALE] = CLOUDABI_ESTALE,
|
|
[ETIMEDOUT] = CLOUDABI_ETIMEDOUT,
|
|
[ETXTBSY] = CLOUDABI_ETXTBSY,
|
|
[EXDEV] = CLOUDABI_EXDEV,
|
|
[ENOTCAPABLE] = CLOUDABI_ENOTCAPABLE,
|
|
};
|
|
|
|
/* Unknown error: fall back to returning ENOSYS. */
|
|
if (error < 0 || error >= nitems(table) || table[error] == 0)
|
|
return (error == 0 ? 0 : CLOUDABI_ENOSYS);
|
|
return (table[error]);
|
|
}
|