Merge pull request #8746 from koachan/sparc64-fixes

Various Linux/SPARCv9 fixes

lib/libc/glibc/sysdeps/sparc/nptl/bits/pthreadtypes-arch.h

@@ -1,81 +0,0 @@
-/* Machine-specific pthread type layouts.  SPARC version.
-   Copyright (C) 2003-2019 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _BITS_PTHREADTYPES_ARCH_H
-#define _BITS_PTHREADTYPES_ARCH_H	1
-
-#include <bits/wordsize.h>
-
-#if __WORDSIZE == 64
-# define __SIZEOF_PTHREAD_ATTR_T 56
-# define __SIZEOF_PTHREAD_MUTEX_T 40
-# define __SIZEOF_PTHREAD_CONDATTR_T 4
-# define __SIZEOF_PTHREAD_RWLOCK_T 56
-# define __SIZEOF_PTHREAD_BARRIER_T 32
-#else
-# define __SIZEOF_PTHREAD_ATTR_T 36
-# define __SIZEOF_PTHREAD_MUTEX_T 24
-# define __SIZEOF_PTHREAD_CONDATTR_T 4
-# define __SIZEOF_PTHREAD_RWLOCK_T 32
-# define __SIZEOF_PTHREAD_BARRIER_T 20
-#endif
-#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
-#define __SIZEOF_PTHREAD_COND_T 48
-#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
-#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
-
-/* Definitions for internal mutex struct.  */
-#define __PTHREAD_COMPAT_PADDING_MID
-#define __PTHREAD_COMPAT_PADDING_END
-#define __PTHREAD_MUTEX_LOCK_ELISION    0
-#define __PTHREAD_MUTEX_NUSERS_AFTER_KIND  (__WORDSIZE != 64)
-#define __PTHREAD_MUTEX_USE_UNION          (__WORDSIZE != 64)
-
-#define __LOCK_ALIGNMENT
-#define __ONCE_ALIGNMENT
-
-struct __pthread_rwlock_arch_t
-{
-  unsigned int __readers;
-  unsigned int __writers;
-  unsigned int __wrphase_futex;
-  unsigned int __writers_futex;
-  unsigned int __pad3;
-  unsigned int __pad4;
-#if __WORDSIZE == 64
-  int __cur_writer;
-  int __shared;
-  unsigned long int __pad1;
-  unsigned long int __pad2;
-  /* FLAGS must stay at this position in the structure to maintain
-     binary compatibility.  */
-  unsigned int __flags;
-#else
-  unsigned char __pad1;
-  unsigned char __pad2;
-  unsigned char __shared;
-  /* FLAGS must stay at this position in the structure to maintain
-     binary compatibility.  */
-  unsigned char __flags;
-  int __cur_writer;
-#endif
-};
-
-#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
-
-#endif	/* bits/pthreadtypes.h */

lib/std/fs.zig

@@ -501,7 +501,9 @@ pub const Dir = struct {
         },
         .linux => struct {
             dir: Dir,
-            buf: [8192]u8, // TODO align(@alignOf(os.dirent64)),
+            // The if guard is solely there to prevent compile errors from missing `os.linux.dirent64`
+            // definition when compiling for other OSes. It doesn't do anything when compiling for Linux.
+            buf: [8192]u8 align(if (builtin.os.tag != .linux) 1 else @alignOf(os.linux.dirent64)),
             index: usize,
             end_index: usize,
 

lib/std/os/bits/linux/errno-sparc.zig

@@ -52,6 +52,7 @@ pub const ENOPROTOOPT = 42;
 pub const EPROTONOSUPPORT = 43;
 pub const ESOCKTNOSUPPORT = 44;
 pub const EOPNOTSUPP = 45;
+pub const ENOTSUP = EOPNOTSUPP;
 pub const EPFNOSUPPORT = 46;
 pub const EAFNOSUPPORT = 47;
 pub const EADDRINUSE = 48;

lib/std/special/compiler_rt.zig

@@ -294,7 +294,17 @@ comptime {
         @export(@import("compiler_rt/sparc.zig")._Qp_fgt, .{ .name = "_Qp_fgt", .linkage = linkage });
         @export(@import("compiler_rt/sparc.zig")._Qp_fge, .{ .name = "_Qp_fge", .linkage = linkage });
 
+        @export(@import("compiler_rt/sparc.zig")._Qp_itoq, .{ .name = "_Qp_itoq", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_uitoq, .{ .name = "_Qp_uitoq", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_xtoq, .{ .name = "_Qp_xtoq", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_uxtoq, .{ .name = "_Qp_uxtoq", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_stoq, .{ .name = "_Qp_stoq", .linkage = linkage });
         @export(@import("compiler_rt/sparc.zig")._Qp_dtoq, .{ .name = "_Qp_dtoq", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_qtoi, .{ .name = "_Qp_qtoi", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_qtoui, .{ .name = "_Qp_qtoui", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_qtox, .{ .name = "_Qp_qtox", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_qtoux, .{ .name = "_Qp_qtoux", .linkage = linkage });
+        @export(@import("compiler_rt/sparc.zig")._Qp_qtos, .{ .name = "_Qp_qtos", .linkage = linkage });
         @export(@import("compiler_rt/sparc.zig")._Qp_qtod, .{ .name = "_Qp_qtod", .linkage = linkage });
     }
 

lib/std/special/compiler_rt/sparc.zig

@@ -68,12 +68,52 @@ pub fn _Qp_fge(a: *f128, b: *f128) callconv(.C) bool {
     return cmp == @enumToInt(FCMP.Greater) or cmp == @enumToInt(FCMP.Equal);
 }
 
-// Casting
+// Conversion
+
+pub fn _Qp_itoq(c: *f128, a: i32) callconv(.C) void {
+    c.* = @import("floatsiXf.zig").__floatsitf(a);
+}
+
+pub fn _Qp_uitoq(c: *f128, a: u32) callconv(.C) void {
+    c.* = @import("floatunsitf.zig").__floatunsitf(a);
+}
+
+pub fn _Qp_xtoq(c: *f128, a: i64) callconv(.C) void {
+    c.* = @import("floatditf.zig").__floatditf(a);
+}
+
+pub fn _Qp_uxtoq(c: *f128, a: u64) callconv(.C) void {
+    c.* = @import("floatunditf.zig").__floatunditf(a);
+}
+
+pub fn _Qp_stoq(c: *f128, a: f32) callconv(.C) void {
+    c.* = @import("extendXfYf2.zig").__extendsftf2(a);
+}
 
 pub fn _Qp_dtoq(c: *f128, a: f64) callconv(.C) void {
     c.* = @import("extendXfYf2.zig").__extenddftf2(a);
 }
 
+pub fn _Qp_qtoi(a: *f128) callconv(.C) i32 {
+    return @import("fixtfsi.zig").__fixtfsi(a.*);
+}
+
+pub fn _Qp_qtoui(a: *f128) callconv(.C) u32 {
+    return @import("fixunstfsi.zig").__fixunstfsi(a.*);
+}
+
+pub fn _Qp_qtox(a: *f128) callconv(.C) i64 {
+    return @import("fixtfdi.zig").__fixtfdi(a.*);
+}
+
+pub fn _Qp_qtoux(a: *f128) callconv(.C) u64 {
+    return @import("fixunstfdi.zig").__fixunstfdi(a.*);
+}
+
+pub fn _Qp_qtos(a: *f128) callconv(.C) f32 {
+    return @import("truncXfYf2.zig").__trunctfsf2(a.*);
+}
+
 pub fn _Qp_qtod(a: *f128) callconv(.C) f64 {
     return @import("truncXfYf2.zig").__trunctfdf2(a.*);
 }

src/glibc.zig

@@ -446,10 +446,14 @@ fn start_asm_path(comp: *Compilation, arena: *Allocator, basename: []const u8) !
     try result.appendSlice(comp.zig_lib_directory.path.?);
     try result.appendSlice(s ++ "libc" ++ s ++ "glibc" ++ s ++ "sysdeps" ++ s);
     if (is_sparc) {
-        if (is_64) {
-            try result.appendSlice("sparc" ++ s ++ "sparc64");
+        if (mem.eql(u8, basename, "crti.S") or mem.eql(u8, basename, "crtn.S")) {
+            try result.appendSlice("sparc");
         } else {
-            try result.appendSlice("sparc" ++ s ++ "sparc32");
+            if (is_64) {
+                try result.appendSlice("sparc" ++ s ++ "sparc64");
+            } else {
+                try result.appendSlice("sparc" ++ s ++ "sparc32");
+            }
         }
     } else if (arch.isARM()) {
         try result.appendSlice("arm");