From dd4131c8322891a0ad7cfb661efa41aecc02b581 Mon Sep 17 00:00:00 2001 From: Aurelien Jarno Date: Tue, 1 Nov 2022 20:43:55 +0100 Subject: linux: Fix fstatat on MIPSn64 (BZ #29730) Commit 6e8a0aac2f883 ("time: Fix overflow itimer tests on 32-bit systems") changed in_time_t_range to assume a 32-bit time_t. This broke fstatat on MIPSn64 that was using it with a 64-bit time_t due to difference between stat and stat64. This commit fix that by adding a MIPSn64 specific version, which bypasses the EOVERFLOW tests. Resolves: BZ #29730 Reviewed-by: Adhemerval Zanella (cherry picked from commit 7457b7eef8dfe8cc48e55b9f9837df6dd397b80d) --- NEWS | 1 + sysdeps/unix/sysv/linux/mips/mips64/n64/fstatat.c | 51 +++++++++++++++++++++++ 2 files changed, 52 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/mips/mips64/n64/fstatat.c diff --git a/NEWS b/NEWS index 833045585f..e92d547e2c 100644 --- a/NEWS +++ b/NEWS @@ -45,6 +45,7 @@ The following bugs are resolved with this release: [29638] libc: stdlib: arc4random fallback is never used [29657] libc: Incorrect struct stat for 64-bit time on linux/generic platforms + [29730] broken y2038 support in fstatat on MIPS N64 Version 2.36 diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/fstatat.c b/sysdeps/unix/sysv/linux/mips/mips64/n64/fstatat.c new file mode 100644 index 0000000000..fe6c3a0dda --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/fstatat.c @@ -0,0 +1,51 @@ +/* Get file status. Linux/MIPSn64 version. + Copyright (C) 2022 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 + . */ + +#include +#include + +/* Different than other ABIs, mips64 has different layouts for non-LFS + and LFS struct stat. */ +int +__fstatat (int fd, const char *file, struct stat *buf, int flag) +{ + struct __stat64_t64 st64; + int r = __fstatat64_time64 (fd, file, &st64, flag); + if (r == 0) + { + /* Clear internal pad and reserved fields. */ + memset (buf, 0, sizeof (*buf)); + + buf->st_dev = st64.st_dev; + buf->st_ino = st64.st_ino; + buf->st_mode = st64.st_mode; + buf->st_nlink = st64.st_nlink; + buf->st_uid = st64.st_uid; + buf->st_gid = st64.st_gid; + buf->st_rdev = st64.st_rdev; + buf->st_size = st64.st_size; + buf->st_blksize = st64.st_blksize; + buf->st_blocks = st64.st_blocks; + buf->st_atim = st64.st_atim; + buf->st_mtim = st64.st_mtim; + buf->st_ctim = st64.st_ctim; + } + return r; +} + +weak_alias (__fstatat, fstatat) -- cgit 1.4.1