libphobos: Merge common version blocks for core.sys.posix.sys.msg.

This is a continuation of simplifying C bindings so there aren't dozens
of duplicated code for each architecture.  For this particular module,
it now more closely resembles how glibc arranges msq.h, fixing a couple
of targets in the process, notably X32.

Backport from upstream druntime 2.084.

Reviewed-on: https://github.com/dlang/druntime/pull/2362

From-SVN: r267192

1 files changed, 174 insertions, 395 deletions

diff --git a/libphobos/libdruntime/core/sys/posix/sys/msg.d b/libphobos/libdruntime/core/sys/posix/sys/msg.d
index 637df206cce..1957debbda7 100644
--- a/libphobos/libdruntime/core/sys/posix/sys/msg.d
+++ b/libphobos/libdruntime/core/sys/posix/sys/msg.d
@@ -6,421 +6,200 @@
 
 module core.sys.posix.sys.msg;
 
+import core.sys.posix.config;
 import core.sys.posix.sys.ipc;
-public import core.sys.posix.sys.types;
-public import core.stdc.config;
+import core.sys.posix.sys.types;
+import core.stdc.config;
 
 version (CRuntime_Glibc):
 // Some of these may be from linux kernel headers.
 extern (C):
 
-public enum MSG_STAT = 11;
-public enum MSG_INFO = 12;
+version (ARM)     version = ARM_Any;
+version (AArch64) version = ARM_Any;
+version (HPPA)    version = HPPA_Any;
+version (HPPA64)  version = HPPA_Any;
+version (MIPS32)  version = MIPS_Any;
+version (MIPS64)  version = MIPS_Any;
+version (PPC)     version = PPC_Any;
+version (PPC64)   version = PPC_Any;
+version (RISCV32) version = RISCV_Any;
+version (RISCV64) version = RISCV_Any;
+version (S390)    version = IBMZ_Any;
+version (SPARC)   version = SPARC_Any;
+version (SPARC64) version = SPARC_Any;
+version (SystemZ) version = IBMZ_Any;
+
+version (linux)
+{
+    enum MSG_STAT = 11;
+    enum MSG_INFO = 12;
+
+    enum MSG_NOERROR = 1 << 12; // octal!10000
+    enum  MSG_EXCEPT = 2 << 12; // octal!20000
+    enum    MSG_COPY = 4 << 12; // octal!40000
+
+    struct msginfo
+    {
+        int msgpool;
+        int msgmap;
+        int msgmax;
+        int msgmnb;
+        int msgmni;
+        int msgssz;
+        int msgtql;
+        ushort msgseg;
+    }
+
+    version (Alpha)     version = GENERICMSQ;
+    version (ARM_Any)   version = GENERICMSQ;
+    version (IA64)      version = GENERICMSQ;
+    version (IBMZ_Any)  version = GENERICMSQ;
+    version (RISCV_Any) version = GENERICMSQ;
+
+    version (GENERICMSQ)
+    {
+        // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/bits/msq-pad.h
+        private enum MSQ_PAD_AFTER_TIME = (__WORDSIZE == 32);
+        private enum MSQ_PAD_BEFORE_TIME = false;
+    }
+    else version (HPPA_Any)
+    {
+        // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/hppa/bits/msq-pad.h
+        private enum MSQ_PAD_AFTER_TIME = false;
+        private enum MSQ_PAD_BEFORE_TIME = (__WORDSIZE == 32);
+    }
+    else version (MIPS_Any)
+    {
+        // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/mips/bits/msq-pad.h
+        version (LittleEndian)
+        {
+            private enum MSQ_PAD_AFTER_TIME = (__WORDSIZE == 32);
+            private enum MSQ_PAD_BEFORE_TIME = false;
+        }
+        else
+        {
+            private enum MSQ_PAD_AFTER_TIME = false;
+            private enum MSQ_PAD_BEFORE_TIME = (__WORDSIZE == 32);
+        }
+    }
+    else version (PPC_Any)
+    {
+        //  https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/powerpc/bits/msq-pad.h
+        private enum MSQ_PAD_AFTER_TIME = false;
+        private enum MSQ_PAD_BEFORE_TIME = (__WORDSIZE == 32);
+    }
+    else version (SPARC_Any)
+    {
+        // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sparc/bits/msq-pad.h
+        private enum MSQ_PAD_AFTER_TIME = false;
+        private enum MSQ_PAD_BEFORE_TIME = (__WORDSIZE == 32);
+    }
+    else version (X86)
+    {
+        // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/x86/bits/msq-pad.h
+        private enum MSQ_PAD_AFTER_TIME = true;
+        private enum MSQ_PAD_BEFORE_TIME = false;
+    }
+    else version (X86_64)
+    {
+        // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/x86/bits/msq-pad.h
+        private enum MSQ_PAD_AFTER_TIME = false;
+        private enum MSQ_PAD_BEFORE_TIME = false;
+    }
+    else
+        static assert(0, "unimplemented");
+
+    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/bits/msq.h
+    alias msgqnum_t = ulong_t;
+    alias msglen_t = ulong_t;
+
+    static if (MSQ_PAD_BEFORE_TIME)
+    {
+        struct msqid_ds
+        {
+            ipc_perm        msg_perm;
+            c_ulong __glibc_reserved1;
+            time_t          msg_stime;
+            c_ulong __glibc_reserved2;
+            time_t          msg_rtime;
+            c_ulong __glibc_reserved3;
+            time_t          msg_ctime;
+            ulong_t         __msg_cbytes;
+            msgqnum_t       msg_qnum;
+            msglen_t        msg_qbytes;
+            pid_t           msg_lspid;
+            pid_t           msg_lrpid;
+            ulong_t __glibc_reserved4;
+            ulong_t __glibc_reserved5;
+        }
+    }
+    else static if (MSQ_PAD_AFTER_TIME)
+    {
+        struct msqid_ds
+        {
+            ipc_perm        msg_perm;
+            time_t          msg_stime;
+            c_ulong __glibc_reserved1;
+            time_t          msg_rtime;
+            c_ulong __glibc_reserved2;
+            time_t          msg_ctime;
+            c_ulong __glibc_reserved3;
+            ulong_t         __msg_cbytes;
+            msgqnum_t       msg_qnum;
+            msglen_t        msg_qbytes;
+            pid_t           msg_lspid;
+            pid_t           msg_lrpid;
+            ulong_t __glibc_reserved4;
+            ulong_t __glibc_reserved5;
+        }
+    }
+    else
+    {
+        struct msqid_ds
+        {
+            ipc_perm        msg_perm;
+            time_t          msg_stime;
+            time_t          msg_rtime;
+            time_t          msg_ctime;
+            ulong_t         __msg_cbytes;
+            msgqnum_t       msg_qnum;
+            msglen_t        msg_qbytes;
+            pid_t           msg_lspid;
+            pid_t           msg_lrpid;
+            ulong_t __glibc_reserved4;
+            ulong_t __glibc_reserved5;
+        }
+    }
+}
+else
+{
+    // https://sourceware.org/git/?p=glibc.git;a=blob;f=bits/msq.h
+    enum MSG_NOERROR = 1 << 12; // octal!10000
+
+    alias msgqnum_t = ushort;
+    alias msglen_t = ushort;
 
-public enum MSG_NOERROR = 1 << 12; // octal!10000
-public enum  MSG_EXCEPT = 2 << 12; // octal!20000
-public enum    MSG_COPY = 4 << 12; // octal!40000
-
-struct msgbuf
-{
-    c_long mtype;
-    char[1] mtext;
-}
-
-struct msginfo
-{
-    int msgpool;
-    int msgmap;
-    int msgmax;
-    int msgmnb;
-    int msgmni;
-    int msgssz;
-    int msgtql;
-    ushort msgseg;
-}
-
-version (Alpha)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/alpha/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        time_t msg_stime;
-        time_t msg_rtime;
-        time_t msg_ctime;
-        c_ulong __msg_cbytes;
-        msgqnum_t msg_qnum;
-        msglen_t msg_qbytes;
-        pid_t msg_lspid;
-        pid_t msg_lrpid;
-        c_ulong __glibc_reserved1;
-        c_ulong __glibc_reserved2;
-    }
-}
-else version (HPPA)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/hppa/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    // Assuming word size is 32
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __pad1;
-        time_t          msg_stime;
-        c_ulong __pad2;
-        time_t          msg_rtime;
-        c_ulong __pad3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved1;
-        c_ulong __glibc_reserved2;
-    }
-
-}
-else version (MIPS32)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/mips/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm  msg_perm;
-        version (BigEndian) c_ulong __glibc_reserved1;
-        time_t    msg_stime;
-        version (LittleEndian) c_ulong __glibc_reserved1;
-        version (BigEndian) c_ulong __glibc_reserved2;
-        time_t    msg_rtime;
-        version (LittleEndian) c_ulong __glibc_reserved2;
-        version (BigEndian) c_ulong __glibc_reserved3;
-        time_t    msg_ctime;
-        version (LittleEndian) c_ulong __glibc_reserved3;
-        c_ulong   __msg_cbytes;
-        msgqnum_t msg_qnum;
-        msglen_t  msg_qbytes;
-        pid_t     msg_lspid;
-        pid_t     msg_lrpid;
-        c_ulong   __glibc_reserved4;
-        c_ulong   __glibc_reserved5;
-    }
-}
-else version (MIPS64)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/mips/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm  msg_perm;
-        time_t    msg_stime;
-        time_t    msg_rtime;
-        time_t    msg_ctime;
-        c_ulong   __msg_cbytes;
-        msgqnum_t msg_qnum;
-        msglen_t  msg_qbytes;
-        pid_t     msg_lspid;
-        pid_t     msg_lrpid;
-        c_ulong   __glibc_reserved4;
-        c_ulong   __glibc_reserved5;
-    }
-}
-else version (PPC)
-{
-
-    //  https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/powerpc/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __glibc_reserved1;
-        time_t          msg_stime;
-        c_ulong __glibc_reserved2;
-        time_t          msg_rtime;
-        c_ulong __glibc_reserved3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-}
-else version (PPC64)
-{
-    //  https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/powerpc/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm  msg_perm;
-        time_t    msg_stime;
-        time_t    msg_rtime;
-        time_t    msg_ctime;
-        c_ulong   __msg_cbytes;
-        msgqnum_t msg_qnum;
-        msglen_t  msg_qbytes;
-        pid_t     msg_lspid;
-        pid_t     msg_lrpid;
-        c_ulong   __glibc_reserved4;
-        c_ulong   __glibc_reserved5;
-    }
-}
-else version (RISCV32)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/generic/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __glibc_reserved1;
-        time_t          msg_stime;
-        c_ulong __glibc_reserved2;
-        time_t          msg_rtime;
-        c_ulong __glibc_reserved3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-}
-else version (RISCV64)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/generic/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        time_t          msg_stime;
-        time_t          msg_rtime;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-}
-else version (S390)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/s390/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    // Assuming wordsize != 64
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __glibc_reserved1;
-        time_t          msg_stime;
-        c_ulong __glibc_reserved2;
-        time_t          msg_rtime;
-        c_ulong __glibc_reserved3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-}
-else version (SystemZ)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/s390/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    // Assuming wordsize == 64
     struct msqid_ds
     {
         ipc_perm msg_perm;
         time_t          msg_stime;
         time_t          msg_rtime;
         time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
         msgqnum_t       msg_qnum;
         msglen_t        msg_qbytes;
         pid_t           msg_lspid;
         pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
     }
 }
-else version (SPARC)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sparc/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
 
-    // Assuming word size is 32
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __pad1;
-        time_t          msg_stime;
-        c_ulong __pad2;
-        time_t          msg_rtime;
-        c_ulong __pad3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved1;
-        c_ulong __glibc_reserved2;
-    }
-}
-else version (SPARC64)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/sparc/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    // Assuming word size is 32
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __pad1;
-        time_t          msg_stime;
-        c_ulong __pad2;
-        time_t          msg_rtime;
-        c_ulong __pad3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved1;
-        c_ulong __glibc_reserved2;
-    }
-}
-else version (X86)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/x86/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        time_t          msg_stime;
-        time_t          msg_rtime;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-}
-else version (X86_64)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/x86/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __glibc_reserved1;
-        time_t          msg_stime;
-        c_ulong __glibc_reserved2;
-        time_t          msg_rtime;
-        c_ulong __glibc_reserved3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-}
-else version (AArch64)
+struct msgbuf
 {
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/generic/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        time_t          msg_stime;
-        time_t          msg_rtime;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
+    c_long mtype;
+    char[1] mtext;
 }
-else version (ARM)
-{
-    // https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/generic/bits/msq.h
-    alias c_ulong msgqnum_t;
-    alias c_ulong msglen_t;
-
-    struct msqid_ds
-    {
-        ipc_perm msg_perm;
-        c_ulong __glibc_reserved1;
-        time_t          msg_stime;
-        c_ulong __glibc_reserved2;
-        time_t          msg_rtime;
-        c_ulong __glibc_reserved3;
-        time_t          msg_ctime;
-        c_ulong         __msg_cbytes;
-        msgqnum_t       msg_qnum;
-        msglen_t        msg_qbytes;
-        pid_t           msg_lspid;
-        pid_t           msg_lrpid;
-        c_ulong __glibc_reserved4;
-        c_ulong __glibc_reserved5;
-    }
-} else
-    static assert(0, "unimplemented");
-
-
-public enum MSG_MEM_SCALE =  32;
-public enum MSGMNI =     16;
-public enum MSGMAX =   8192;
-public enum MSGMNB =  16384;
 
-int msgctl (int msqid, int cmd, msqid_ds *__buf);
-int msgget ( key_t key, int msgflg );
-ssize_t msgrcv(int msqid, void *msgp, size_t msgsz, c_long msgtyp, int msgflg);
-int msgsnd ( int msqid, msgbuf *msgp, int msgsz, int msgflg );
+int msgctl(int msqid, int cmd, msqid_ds* __buf);
+int msgget(key_t key, int msgflg);
+ssize_t msgrcv(int msqid, void* msgp, size_t msgsz, c_long msgtyp, int msgflg);
+int msgsnd(int msqid, msgbuf* msgp, int msgsz, int msgflg);