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5b813f1a2a
Prior to this change we would assume the ABI for Apple targets to be GNU which could result in subtle errors in LLVM emitting calls to non-existent system libc provided functions such as `_sincosf` which is a GNU extension and as such is not provided by macOS for example. This would result in linker errors where the linker would not be able to find the said symbol in `libSystem.tbd`. With this change, we now correctly identify macOS (and other Apple platforms) as having ABI `unknown` which translates to unspecified in LLVM under-the-hood: ``` // main.ll target triple = "aarch64-unknown-macos-unknown" ``` Note however that we never suffix the target OS with target version such as `macos11` or `macos12` which means we fail to instruct LLVM of potential optimisations provided by the OS such as the availability of function `___sincosf_stret`. I suggest we investigate that in a follow-up commit.
442 lines
17 KiB
C
Vendored
442 lines
17 KiB
C
Vendored
/*
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* Copyright (c) 2000-2019 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright (c) 1982, 1986, 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)if.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NET_IF_H_
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#define _NET_IF_H_
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#include <sys/cdefs.h>
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#include <net/net_kev.h>
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#define IF_NAMESIZE 16
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#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
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#include <sys/appleapiopts.h>
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#ifdef __APPLE__
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#include <net/if_var.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#endif
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struct if_clonereq {
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int ifcr_total; /* total cloners (out) */
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int ifcr_count; /* room for this many in user buffer */
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char *ifcr_buffer; /* buffer for cloner names */
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};
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#define IFF_UP 0x1 /* interface is up */
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#define IFF_BROADCAST 0x2 /* broadcast address valid */
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#define IFF_DEBUG 0x4 /* turn on debugging */
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#define IFF_LOOPBACK 0x8 /* is a loopback net */
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#define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
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#define IFF_NOTRAILERS 0x20 /* obsolete: avoid use of trailers */
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#define IFF_RUNNING 0x40 /* resources allocated */
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#define IFF_NOARP 0x80 /* no address resolution protocol */
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#define IFF_PROMISC 0x100 /* receive all packets */
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#define IFF_ALLMULTI 0x200 /* receive all multicast packets */
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#define IFF_OACTIVE 0x400 /* transmission in progress */
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#define IFF_SIMPLEX 0x800 /* can't hear own transmissions */
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#define IFF_LINK0 0x1000 /* per link layer defined bit */
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#define IFF_LINK1 0x2000 /* per link layer defined bit */
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#define IFF_LINK2 0x4000 /* per link layer defined bit */
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#define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */
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#define IFF_MULTICAST 0x8000 /* supports multicast */
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/*
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* Capabilities that interfaces can advertise.
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*
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* struct ifnet.if_capabilities
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* contains the optional features & capabilities a particular interface
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* supports (not only the driver but also the detected hw revision).
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* Capabilities are defined by IFCAP_* below.
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* struct ifnet.if_capenable
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* contains the enabled (either by default or through ifconfig) optional
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* features & capabilities on this interface.
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* Capabilities are defined by IFCAP_* below.
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* struct if_data.ifi_hwassist in IFNET_* form, defined in net/kpi_interface.h,
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* contains the enabled optional features & capabilites that can be used
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* individually per packet and are specified in the mbuf pkthdr.csum_flags
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* field. IFCAP_* and IFNET_* do not match one to one and IFNET_* may be
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* more detailed or differentiated than IFCAP_*.
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* IFNET_* hwassist flags have corresponding CSUM_* in sys/mbuf.h
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*/
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#define IFCAP_RXCSUM 0x00001 /* can offload checksum on RX */
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#define IFCAP_TXCSUM 0x00002 /* can offload checksum on TX */
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#define IFCAP_VLAN_MTU 0x00004 /* VLAN-compatible MTU */
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#define IFCAP_VLAN_HWTAGGING 0x00008 /* hardware VLAN tag support */
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#define IFCAP_JUMBO_MTU 0x00010 /* 9000 byte MTU supported */
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#define IFCAP_TSO4 0x00020 /* can do TCP Segmentation Offload */
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#define IFCAP_TSO6 0x00040 /* can do TCP6 Segmentation Offload */
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#define IFCAP_LRO 0x00080 /* can do Large Receive Offload */
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#define IFCAP_AV 0x00100 /* can do 802.1 AV Bridging */
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#define IFCAP_TXSTATUS 0x00200 /* can return linklevel xmit status */
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#define IFCAP_SKYWALK 0x00400 /* Skywalk mode supported/enabled */
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#define IFCAP_HW_TIMESTAMP 0x00800 /* Time stamping in hardware */
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#define IFCAP_SW_TIMESTAMP 0x01000 /* Time stamping in software */
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#define IFCAP_CSUM_PARTIAL 0x02000 /* can offload partial checksum */
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#define IFCAP_CSUM_ZERO_INVERT 0x04000 /* can invert 0 to -0 (0xffff) */
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#define IFCAP_HWCSUM (IFCAP_RXCSUM | IFCAP_TXCSUM)
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#define IFCAP_TSO (IFCAP_TSO4 | IFCAP_TSO6)
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#define IFCAP_VALID (IFCAP_HWCSUM | IFCAP_TSO | IFCAP_LRO | IFCAP_VLAN_MTU | \
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IFCAP_VLAN_HWTAGGING | IFCAP_JUMBO_MTU | IFCAP_AV | IFCAP_TXSTATUS | \
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IFCAP_SKYWALK | IFCAP_SW_TIMESTAMP | IFCAP_HW_TIMESTAMP | \
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IFCAP_CSUM_PARTIAL | IFCAP_CSUM_ZERO_INVERT)
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#define IFQ_MAXLEN 128
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#define IFNET_SLOWHZ 1 /* granularity is 1 second */
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#define IFQ_TARGET_DELAY (10ULL * 1000 * 1000) /* 10 ms */
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#define IFQ_UPDATE_INTERVAL (100ULL * 1000 * 1000) /* 100 ms */
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/*
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* Message format for use in obtaining information about interfaces
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* from sysctl and the routing socket
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*/
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struct if_msghdr {
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unsigned short ifm_msglen; /* to skip non-understood messages */
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unsigned char ifm_version; /* future binary compatability */
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unsigned char ifm_type; /* message type */
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int ifm_addrs; /* like rtm_addrs */
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int ifm_flags; /* value of if_flags */
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unsigned short ifm_index; /* index for associated ifp */
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struct if_data ifm_data; /* statistics and other data about if */
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};
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/*
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* Message format for use in obtaining information about interface addresses
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* from sysctl and the routing socket
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*/
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struct ifa_msghdr {
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unsigned short ifam_msglen; /* to skip non-understood messages */
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unsigned char ifam_version; /* future binary compatability */
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unsigned char ifam_type; /* message type */
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int ifam_addrs; /* like rtm_addrs */
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int ifam_flags; /* value of ifa_flags */
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unsigned short ifam_index; /* index for associated ifp */
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int ifam_metric; /* value of ifa_metric */
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};
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/*
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* Message format for use in obtaining information about multicast addresses
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* from the routing socket
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*/
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struct ifma_msghdr {
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unsigned short ifmam_msglen; /* to skip non-understood messages */
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unsigned char ifmam_version; /* future binary compatability */
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unsigned char ifmam_type; /* message type */
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int ifmam_addrs; /* like rtm_addrs */
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int ifmam_flags; /* value of ifa_flags */
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unsigned short ifmam_index; /* index for associated ifp */
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};
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/*
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* Message format for use in obtaining information about interfaces
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* from sysctl
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*/
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struct if_msghdr2 {
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u_short ifm_msglen; /* to skip over non-understood messages */
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u_char ifm_version; /* future binary compatability */
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u_char ifm_type; /* message type */
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int ifm_addrs; /* like rtm_addrs */
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int ifm_flags; /* value of if_flags */
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u_short ifm_index; /* index for associated ifp */
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int ifm_snd_len; /* instantaneous length of send queue */
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int ifm_snd_maxlen; /* maximum length of send queue */
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int ifm_snd_drops; /* number of drops in send queue */
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int ifm_timer; /* time until if_watchdog called */
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struct if_data64 ifm_data; /* statistics and other data */
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};
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/*
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* Message format for use in obtaining information about multicast addresses
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* from sysctl
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*/
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struct ifma_msghdr2 {
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u_short ifmam_msglen; /* to skip over non-understood messages */
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u_char ifmam_version; /* future binary compatability */
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u_char ifmam_type; /* message type */
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int ifmam_addrs; /* like rtm_addrs */
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int ifmam_flags; /* value of ifa_flags */
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u_short ifmam_index; /* index for associated ifp */
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int32_t ifmam_refcount;
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};
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/*
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* ifdevmtu: interface device mtu
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* Used with SIOCGIFDEVMTU to get the current mtu in use by the device,
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* as well as the minimum and maximum mtu allowed by the device.
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*/
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struct ifdevmtu {
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int ifdm_current;
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int ifdm_min;
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int ifdm_max;
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};
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#pragma pack(4)
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/*
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* ifkpi: interface kpi ioctl
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* Used with SIOCSIFKPI and SIOCGIFKPI.
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*
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* ifk_module_id - From in the kernel, a value from kev_vendor_code_find. From
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* user space, a value from SIOCGKEVVENDOR ioctl on a kernel event socket.
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* ifk_type - The type. Types are specific to each module id.
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* ifk_data - The data. ifk_ptr may be a 64bit pointer for 64 bit processes.
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*
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* Copying data between user space and kernel space is done using copyin
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* and copyout. A process may be running in 64bit mode. In such a case,
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* the pointer will be a 64bit pointer, not a 32bit pointer. The following
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* sample is a safe way to copy the data in to the kernel from either a
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* 32bit or 64bit process:
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*
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* user_addr_t tmp_ptr;
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* if (IS_64BIT_PROCESS(current_proc())) {
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* tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr64);
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* }
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* else {
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* tmp_ptr = CAST_USER_ADDR_T(ifkpi.ifk_data.ifk_ptr);
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* }
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* error = copyin(tmp_ptr, allocated_dst_buffer, size of allocated_dst_buffer);
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*/
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struct ifkpi {
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unsigned int ifk_module_id;
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unsigned int ifk_type;
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union {
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void *ifk_ptr;
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int ifk_value;
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} ifk_data;
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};
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/* Wake capabilities of a interface */
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#define IF_WAKE_ON_MAGIC_PACKET 0x01
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#pragma pack()
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/*
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* Interface request structure used for socket
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* ioctl's. All interface ioctl's must have parameter
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* definitions which begin with ifr_name. The
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* remainder may be interface specific.
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*/
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struct ifreq {
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#ifndef IFNAMSIZ
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#define IFNAMSIZ IF_NAMESIZE
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#endif
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char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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union {
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struct sockaddr ifru_addr;
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struct sockaddr ifru_dstaddr;
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struct sockaddr ifru_broadaddr;
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short ifru_flags;
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int ifru_metric;
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int ifru_mtu;
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int ifru_phys;
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int ifru_media;
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int ifru_intval;
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caddr_t ifru_data;
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struct ifdevmtu ifru_devmtu;
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struct ifkpi ifru_kpi;
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u_int32_t ifru_wake_flags;
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u_int32_t ifru_route_refcnt;
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int ifru_cap[2];
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u_int32_t ifru_functional_type;
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#define IFRTYPE_FUNCTIONAL_UNKNOWN 0
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#define IFRTYPE_FUNCTIONAL_LOOPBACK 1
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#define IFRTYPE_FUNCTIONAL_WIRED 2
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#define IFRTYPE_FUNCTIONAL_WIFI_INFRA 3
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#define IFRTYPE_FUNCTIONAL_WIFI_AWDL 4
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#define IFRTYPE_FUNCTIONAL_CELLULAR 5
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#define IFRTYPE_FUNCTIONAL_INTCOPROC 6
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#define IFRTYPE_FUNCTIONAL_COMPANIONLINK 7
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#define IFRTYPE_FUNCTIONAL_LAST 7
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} ifr_ifru;
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#define ifr_addr ifr_ifru.ifru_addr /* address */
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#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
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#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
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#ifdef __APPLE__
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#define ifr_flags ifr_ifru.ifru_flags /* flags */
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#else
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#define ifr_flags ifr_ifru.ifru_flags[0] /* flags */
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#define ifr_prevflags ifr_ifru.ifru_flags[1] /* flags */
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#endif /* __APPLE__ */
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#define ifr_metric ifr_ifru.ifru_metric /* metric */
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#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
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#define ifr_phys ifr_ifru.ifru_phys /* physical wire */
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#define ifr_media ifr_ifru.ifru_media /* physical media */
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#define ifr_data ifr_ifru.ifru_data /* for use by interface */
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#define ifr_devmtu ifr_ifru.ifru_devmtu
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#define ifr_intval ifr_ifru.ifru_intval /* integer value */
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#define ifr_kpi ifr_ifru.ifru_kpi
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#define ifr_wake_flags ifr_ifru.ifru_wake_flags /* wake capabilities */
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#define ifr_route_refcnt ifr_ifru.ifru_route_refcnt /* route references count */
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#define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */
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#define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */
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};
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#define _SIZEOF_ADDR_IFREQ(ifr) \
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((ifr).ifr_addr.sa_len > sizeof (struct sockaddr) ? \
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(sizeof (struct ifreq) - sizeof (struct sockaddr) + \
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(ifr).ifr_addr.sa_len) : sizeof (struct ifreq))
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struct ifaliasreq {
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char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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struct sockaddr ifra_addr;
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struct sockaddr ifra_broadaddr;
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struct sockaddr ifra_mask;
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};
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struct rslvmulti_req {
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struct sockaddr *sa;
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struct sockaddr **llsa;
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};
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#pragma pack(4)
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struct ifmediareq {
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char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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int ifm_current; /* current media options */
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int ifm_mask; /* don't care mask */
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int ifm_status; /* media status */
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int ifm_active; /* active options */
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int ifm_count; /* # entries in ifm_ulist array */
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int *ifm_ulist; /* media words */
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};
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#pragma pack()
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#pragma pack(4)
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struct ifdrv {
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char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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unsigned long ifd_cmd;
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size_t ifd_len; /* length of ifd_data buffer */
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void *ifd_data;
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};
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#pragma pack()
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/*
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* Structure used to retrieve aux status data from interfaces.
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* Kernel suppliers to this interface should respect the formatting
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* needed by ifconfig(8): each line starts with a TAB and ends with
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* a newline.
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*/
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#define IFSTATMAX 800 /* 10 lines of text */
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struct ifstat {
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char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */
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char ascii[IFSTATMAX + 1];
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};
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/*
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* Structure used in SIOCGIFCONF request.
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* Used to retrieve interface configuration
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* for machine (useful for programs which
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* must know all networks accessible).
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*/
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#pragma pack(4)
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struct ifconf {
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int ifc_len; /* size of associated buffer */
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union {
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caddr_t ifcu_buf;
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struct ifreq *ifcu_req;
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} ifc_ifcu;
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};
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#pragma pack()
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#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
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#define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
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/*
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* DLIL KEV_DL_PROTO_ATTACHED/DETACHED structure
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*/
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struct kev_dl_proto_data {
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struct net_event_data link_data;
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u_int32_t proto_family;
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u_int32_t proto_remaining_count;
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};
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#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
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struct if_nameindex {
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unsigned int if_index; /* 1, 2, ... */
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char *if_name; /* null terminated name: "le0", ... */
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};
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__BEGIN_DECLS
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unsigned int if_nametoindex(const char *);
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char *if_indextoname(unsigned int, char *);
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struct if_nameindex *if_nameindex(void);
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void if_freenameindex(struct if_nameindex *);
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__END_DECLS
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#endif /* !_NET_IF_H_ */ |