Commit 37fa6f955d

@@ -0,0 +1,75 @@
+/* Struct stat/stat64 to stat/stat64 conversion for Linux.
+   Copyright (C) 2020-2021 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <stat_t64_cp.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+
+#if __TIMESIZE != 64
+
+static inline bool
+in_time_t_range (__time64_t t)
+{
+  time_t s = t;
+  return s == t;
+}
+
+static inline struct timespec
+valid_timespec64_to_timespec (const struct __timespec64 ts64)
+{
+  struct timespec ts;
+
+  ts.tv_sec = (time_t) ts64.tv_sec;
+  ts.tv_nsec = ts64.tv_nsec;
+
+  return ts;
+}
+
+int
+__cp_stat64_t64_stat64 (const struct __stat64_t64 *st64_t64,
+			struct stat64 *st64)
+{
+  if (! in_time_t_range (st64_t64->st_atim.tv_sec)
+      || ! in_time_t_range (st64_t64->st_mtim.tv_sec)
+      || ! in_time_t_range (st64_t64->st_ctim.tv_sec))
+    {
+      __set_errno (EOVERFLOW);
+      return -1;
+    }
+
+  /* Clear both pad and reserved fields.  */
+  memset (st64, 0, sizeof (*st64));
+
+  st64->st_dev = st64_t64->st_dev,
+  st64->st_ino = st64_t64->st_ino;
+  st64->st_mode = st64_t64->st_mode;
+  st64->st_nlink = st64_t64->st_nlink;
+  st64->st_uid = st64_t64->st_uid;
+  st64->st_gid = st64_t64->st_gid;
+  st64->st_rdev = st64_t64->st_rdev;
+  st64->st_size = st64_t64->st_size;
+  st64->st_blksize = st64_t64->st_blksize;
+  st64->st_blocks  = st64_t64->st_blocks;
+  st64->st_atim = valid_timespec64_to_timespec (st64_t64->st_atim);
+  st64->st_mtim = valid_timespec64_to_timespec (st64_t64->st_mtim);
+  st64->st_ctim = valid_timespec64_to_timespec (st64_t64->st_ctim);
+
+  return 0;
+}
+#endif

@@ -274,7 +274,10 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
             const linux_prefix = lib_libc_glibc ++
                 "sysdeps" ++ s ++ "unix" ++ s ++ "sysv" ++ s ++ "linux" ++ s;
             const Flavor = enum { nonshared, shared };
-            const Dep = struct { path: []const u8, flavor: Flavor };
+            const Dep = struct {
+                path: []const u8,
+                flavor: Flavor = .shared,
+            };
             const deps = [_]Dep{
                 .{
                     .path = lib_libc_glibc ++ "stdlib" ++ s ++ "atexit.c",
@@ -284,46 +287,6 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
                     .path = lib_libc_glibc ++ "stdlib" ++ s ++ "at_quick_exit.c",
                     .flavor = .nonshared,
                 },
-                .{
-                    .path = linux_prefix ++ "stat.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "fstat.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "lstat.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "stat64.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "fstat64.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "lstat64.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "fstatat.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "fstatat64.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = linux_prefix ++ "mknodat.c",
-                    .flavor = .shared,
-                },
-                .{
-                    .path = lib_libc_glibc ++ "io" ++ s ++ "mknod.c",
-                    .flavor = .shared,
-                },
                 .{
                     .path = lib_libc_glibc ++ "sysdeps" ++ s ++ "pthread" ++ s ++ "pthread_atfork.c",
                     .flavor = .nonshared,
@@ -332,10 +295,18 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
                     .path = lib_libc_glibc ++ "debug" ++ s ++ "stack_chk_fail_local.c",
                     .flavor = .nonshared,
                 },
-                .{
-                    .path = lib_libc_glibc ++ "csu" ++ s ++ "errno.c",
-                    .flavor = .shared,
-                },
+                .{ .path = lib_libc_glibc ++ "csu" ++ s ++ "errno.c" },
+                .{ .path = linux_prefix ++ "stat.c" },
+                .{ .path = linux_prefix ++ "fstat.c" },
+                .{ .path = linux_prefix ++ "lstat.c" },
+                .{ .path = linux_prefix ++ "stat64.c" },
+                .{ .path = linux_prefix ++ "fstat64.c" },
+                .{ .path = linux_prefix ++ "lstat64.c" },
+                .{ .path = linux_prefix ++ "fstatat.c" },
+                .{ .path = linux_prefix ++ "fstatat64.c" },
+                .{ .path = linux_prefix ++ "mknodat.c" },
+                .{ .path = lib_libc_glibc ++ "io" ++ s ++ "mknod.c" },
+                .{ .path = linux_prefix ++ "stat_t64_cp.c" },
             };
 
             var c_source_files: [deps.len]Compilation.CSourceFile = undefined;