Merge remote-tracking branch 'origin/master' into llvm13

Conflicts:

 * cmake/Findclang.cmake
 * cmake/Findlld.cmake
 * cmake/Findllvm.cmake

In master branch, more search paths were added to these files with "12"
in the path. In this commit I updated them to "13".

 * src/stage1/codegen.cpp
 * src/zig_llvm.cpp
 * src/zig_llvm.h

In master branch, ZigLLVMBuildCmpXchg is improved to add
`is_single_threaded`. However, the LLVM 13 C API has this already, and
in the llvm13 branch, ZigLLVMBuildCmpXchg is deleted in favor of the C
API. In this commit I updated stage2 to use the LLVM 13 C API rather
than depending on an improved ZigLLVMBuildCmpXchg.

Additionally, src/target.zig largestAtomicBits needed to be updated to
include the new m68k ISA.

1 files changed, 0 insertions, 498 deletions

diff --git a/lib/std/os/bits/linux/netlink.zig b/lib/std/os/bits/linux/netlink.zig
deleted file mode 100644
index 9de546fb20..0000000000
--- a/lib/std/os/bits/linux/netlink.zig
+++ /dev/null
@@ -1,498 +0,0 @@
-usingnamespace @import("../linux.zig");
-
-/// Routing/device hook
-pub const NETLINK_ROUTE = 0;
-
-/// Unused number
-pub const NETLINK_UNUSED = 1;
-
-/// Reserved for user mode socket protocols
-pub const NETLINK_USERSOCK = 2;
-
-/// Unused number, formerly ip_queue
-pub const NETLINK_FIREWALL = 3;
-
-/// socket monitoring
-pub const NETLINK_SOCK_DIAG = 4;
-
-/// netfilter/iptables ULOG
-pub const NETLINK_NFLOG = 5;
-
-/// ipsec
-pub const NETLINK_XFRM = 6;
-
-/// SELinux event notifications
-pub const NETLINK_SELINUX = 7;
-
-/// Open-iSCSI
-pub const NETLINK_ISCSI = 8;
-
-/// auditing
-pub const NETLINK_AUDIT = 9;
-
-pub const NETLINK_FIB_LOOKUP = 10;
-
-pub const NETLINK_CONNECTOR = 11;
-
-/// netfilter subsystem
-pub const NETLINK_NETFILTER = 12;
-
-pub const NETLINK_IP6_FW = 13;
-
-/// DECnet routing messages
-pub const NETLINK_DNRTMSG = 14;
-
-/// Kernel messages to userspace
-pub const NETLINK_KOBJECT_UEVENT = 15;
-
-pub const NETLINK_GENERIC = 16;
-
-// leave room for NETLINK_DM (DM Events)
-
-/// SCSI Transports
-pub const NETLINK_SCSITRANSPORT = 18;
-
-pub const NETLINK_ECRYPTFS = 19;
-
-pub const NETLINK_RDMA = 20;
-
-/// Crypto layer
-pub const NETLINK_CRYPTO = 21;
-
-/// SMC monitoring
-pub const NETLINK_SMC = 22;
-
-// Flags values
-
-/// It is request message.
-pub const NLM_F_REQUEST = 0x01;
-
-/// Multipart message, terminated by NLMSG_DONE
-pub const NLM_F_MULTI = 0x02;
-
-/// Reply with ack, with zero or error code
-pub const NLM_F_ACK = 0x04;
-
-/// Echo this request
-pub const NLM_F_ECHO = 0x08;
-
-/// Dump was inconsistent due to sequence change
-pub const NLM_F_DUMP_INTR = 0x10;
-
-/// Dump was filtered as requested
-pub const NLM_F_DUMP_FILTERED = 0x20;
-
-// Modifiers to GET request
-
-/// specify tree root
-pub const NLM_F_ROOT = 0x100;
-
-/// return all matching
-pub const NLM_F_MATCH = 0x200;
-
-/// atomic GET
-pub const NLM_F_ATOMIC = 0x400;
-pub const NLM_F_DUMP = NLM_F_ROOT | NLM_F_MATCH;
-
-// Modifiers to NEW request
-
-/// Override existing
-pub const NLM_F_REPLACE = 0x100;
-
-/// Do not touch, if it exists
-pub const NLM_F_EXCL = 0x200;
-
-/// Create, if it does not exist
-pub const NLM_F_CREATE = 0x400;
-
-/// Add to end of list
-pub const NLM_F_APPEND = 0x800;
-
-// Modifiers to DELETE request
-
-/// Do not delete recursively
-pub const NLM_F_NONREC = 0x100;
-
-// Flags for ACK message
-
-/// request was capped
-pub const NLM_F_CAPPED = 0x100;
-
-/// extended ACK TVLs were included
-pub const NLM_F_ACK_TLVS = 0x200;
-
-pub const NetlinkMessageType = enum(u16) {
-    /// < 0x10: reserved control messages
-    pub const MIN_TYPE = 0x10;
-
-    /// Nothing.
-    NOOP = 0x1,
-
-    /// Error
-    ERROR = 0x2,
-
-    /// End of a dump
-    DONE = 0x3,
-
-    /// Data lost
-    OVERRUN = 0x4,
-
-    // rtlink types
-
-    RTM_NEWLINK = 16,
-    RTM_DELLINK,
-    RTM_GETLINK,
-    RTM_SETLINK,
-
-    RTM_NEWADDR = 20,
-    RTM_DELADDR,
-    RTM_GETADDR,
-
-    RTM_NEWROUTE = 24,
-    RTM_DELROUTE,
-    RTM_GETROUTE,
-
-    RTM_NEWNEIGH = 28,
-    RTM_DELNEIGH,
-    RTM_GETNEIGH,
-
-    RTM_NEWRULE = 32,
-    RTM_DELRULE,
-    RTM_GETRULE,
-
-    RTM_NEWQDISC = 36,
-    RTM_DELQDISC,
-    RTM_GETQDISC,
-
-    RTM_NEWTCLASS = 40,
-    RTM_DELTCLASS,
-    RTM_GETTCLASS,
-
-    RTM_NEWTFILTER = 44,
-    RTM_DELTFILTER,
-    RTM_GETTFILTER,
-
-    RTM_NEWACTION = 48,
-    RTM_DELACTION,
-    RTM_GETACTION,
-
-    RTM_NEWPREFIX = 52,
-
-    RTM_GETMULTICAST = 58,
-
-    RTM_GETANYCAST = 62,
-
-    RTM_NEWNEIGHTBL = 64,
-    RTM_GETNEIGHTBL = 66,
-    RTM_SETNEIGHTBL,
-
-    RTM_NEWNDUSEROPT = 68,
-
-    RTM_NEWADDRLABEL = 72,
-    RTM_DELADDRLABEL,
-    RTM_GETADDRLABEL,
-
-    RTM_GETDCB = 78,
-    RTM_SETDCB,
-
-    RTM_NEWNETCONF = 80,
-    RTM_DELNETCONF,
-    RTM_GETNETCONF = 82,
-
-    RTM_NEWMDB = 84,
-    RTM_DELMDB = 85,
-    RTM_GETMDB = 86,
-
-    RTM_NEWNSID = 88,
-    RTM_DELNSID = 89,
-    RTM_GETNSID = 90,
-
-    RTM_NEWSTATS = 92,
-    RTM_GETSTATS = 94,
-
-    RTM_NEWCACHEREPORT = 96,
-
-    RTM_NEWCHAIN = 100,
-    RTM_DELCHAIN,
-    RTM_GETCHAIN,
-
-    RTM_NEWNEXTHOP = 104,
-    RTM_DELNEXTHOP,
-    RTM_GETNEXTHOP,
-
-    _,
-};
-
-/// Netlink socket address
-pub const sockaddr_nl = extern struct {
-    family: sa_family_t = AF_NETLINK,
-    __pad1: c_ushort = 0,
-
-    /// port ID
-    pid: u32,
-
-    /// multicast groups mask
-    groups: u32,
-};
-
-/// Netlink message header
-/// Specified in RFC 3549 Section 2.3.2
-pub const nlmsghdr = extern struct {
-    /// Length of message including header
-    len: u32,
-
-    /// Message content
-    @"type": NetlinkMessageType,
-
-    /// Additional flags
-    flags: u16,
-
-    /// Sequence number
-    seq: u32,
-
-    /// Sending process port ID
-    pid: u32,
-};
-
-pub const ifinfomsg = extern struct {
-    family: u8,
-    __pad1: u8 = 0,
-
-    /// ARPHRD_*
-    @"type": c_ushort,
-
-    /// Link index
-    index: c_int,
-
-    /// IFF_* flags
-    flags: c_uint,
-
-    /// IFF_* change mask
-    change: c_uint,
-};
-
-pub const rtattr = extern struct {
-    /// Length of option
-    len: c_ushort,
-
-    /// Type of option
-    @"type": IFLA,
-
-    pub const ALIGNTO = 4;
-};
-
-pub const IFLA = enum(c_ushort) {
-    UNSPEC,
-    ADDRESS,
-    BROADCAST,
-    IFNAME,
-    MTU,
-    LINK,
-    QDISC,
-    STATS,
-    COST,
-    PRIORITY,
-    MASTER,
-
-    /// Wireless Extension event
-    WIRELESS,
-
-    /// Protocol specific information for a link
-    PROTINFO,
-
-    TXQLEN,
-    MAP,
-    WEIGHT,
-    OPERSTATE,
-    LINKMODE,
-    LINKINFO,
-    NET_NS_PID,
-    IFALIAS,
-
-    /// Number of VFs if device is SR-IOV PF
-    NUM_VF,
-
-    VFINFO_LIST,
-    STATS64,
-    VF_PORTS,
-    PORT_SELF,
-    AF_SPEC,
-
-    /// Group the device belongs to
-    GROUP,
-
-    NET_NS_FD,
-
-    /// Extended info mask, VFs, etc
-    EXT_MASK,
-
-    /// Promiscuity count: > 0 means acts PROMISC
-    PROMISCUITY,
-
-    NUM_TX_QUEUES,
-    NUM_RX_QUEUES,
-    CARRIER,
-    PHYS_PORT_ID,
-    CARRIER_CHANGES,
-    PHYS_SWITCH_ID,
-    LINK_NETNSID,
-    PHYS_PORT_NAME,
-    PROTO_DOWN,
-    GSO_MAX_SEGS,
-    GSO_MAX_SIZE,
-    PAD,
-    XDP,
-    EVENT,
-
-    NEW_NETNSID,
-    IF_NETNSID,
-
-    CARRIER_UP_COUNT,
-    CARRIER_DOWN_COUNT,
-    NEW_IFINDEX,
-    MIN_MTU,
-    MAX_MTU,
-
-    _,
-
-    pub const TARGET_NETNSID: IFLA = .IF_NETNSID;
-};
-
-pub const rtnl_link_ifmap = extern struct {
-    mem_start: u64,
-    mem_end: u64,
-    base_addr: u64,
-    irq: u16,
-    dma: u8,
-    port: u8,
-};
-
-pub const rtnl_link_stats = extern struct {
-    /// total packets received
-    rx_packets: u32,
-
-    /// total packets transmitted
-    tx_packets: u32,
-
-    /// total bytes received
-    rx_bytes: u32,
-
-    /// total bytes transmitted
-    tx_bytes: u32,
-
-    /// bad packets received
-    rx_errors: u32,
-
-    /// packet transmit problems
-    tx_errors: u32,
-
-    /// no space in linux buffers
-    rx_dropped: u32,
-
-    /// no space available in linux
-    tx_dropped: u32,
-
-    /// multicast packets received
-    multicast: u32,
-
-    collisions: u32,
-
-    // detailed rx_errors
-
-    rx_length_errors: u32,
-
-    /// receiver ring buff overflow
-    rx_over_errors: u32,
-
-    /// recved pkt with crc error
-    rx_crc_errors: u32,
-
-    /// recv'd frame alignment error
-    rx_frame_errors: u32,
-
-    /// recv'r fifo overrun
-    rx_fifo_errors: u32,
-
-    /// receiver missed packet
-    rx_missed_errors: u32,
-
-    // detailed tx_errors
-    tx_aborted_errors: u32,
-    tx_carrier_errors: u32,
-    tx_fifo_errors: u32,
-    tx_heartbeat_errors: u32,
-    tx_window_errors: u32,
-
-    // for cslip etc
-
-    rx_compressed: u32,
-    tx_compressed: u32,
-
-    /// dropped, no handler found
-    rx_nohandler: u32,
-};
-
-pub const rtnl_link_stats64 = extern struct {
-    /// total packets received
-    rx_packets: u64,
-
-    /// total packets transmitted
-    tx_packets: u64,
-
-    /// total bytes received
-    rx_bytes: u64,
-
-    /// total bytes transmitted
-    tx_bytes: u64,
-
-    /// bad packets received
-    rx_errors: u64,
-
-    /// packet transmit problems
-    tx_errors: u64,
-
-    /// no space in linux buffers
-    rx_dropped: u64,
-
-    /// no space available in linux
-    tx_dropped: u64,
-
-    /// multicast packets received
-    multicast: u64,
-
-    collisions: u64,
-
-    // detailed rx_errors
-
-    rx_length_errors: u64,
-
-    /// receiver ring buff overflow
-    rx_over_errors: u64,
-
-    /// recved pkt with crc error
-    rx_crc_errors: u64,
-
-    /// recv'd frame alignment error
-    rx_frame_errors: u64,
-
-    /// recv'r fifo overrun
-    rx_fifo_errors: u64,
-
-    /// receiver missed packet
-    rx_missed_errors: u64,
-
-    // detailed tx_errors
-    tx_aborted_errors: u64,
-    tx_carrier_errors: u64,
-    tx_fifo_errors: u64,
-    tx_heartbeat_errors: u64,
-    tx_window_errors: u64,
-
-    // for cslip etc
-
-    rx_compressed: u64,
-    tx_compressed: u64,
-
-    /// dropped, no handler found
-    rx_nohandler: u64,
-};