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From: caiyinyu <caiyinyu@loongson.cn>
To: libc-alpha@sourceware.org
Cc: joseph_myers@mentor.com, adhemerval.zanella@linaro.org, git@xen0n.name
Subject: [PATCH] linux: use statx for fstat if neither newfstatat nor fstatat64 is present
Date: Tue, 24 May 2022 16:11:59 +0800	[thread overview]
Message-ID: <20220524081159.956560-1-caiyinyu@loongson.cn> (raw)

From: WANG Xuerui <git@xen0n.name>

LoongArch is going to be the first architecture supported by Linux that
has neither fstat* nor newfstatat [1], instead exclusively relying on
statx. So in fstatat64's implementation, we need to also enable statx
usage if neither fstatat64 nor newfstatat is present, to prepare for
this new case of kernel ABI.

[1]: https://lore.kernel.org/all/20220518092619.1269111-1-chenhuacai@loongson.cn/
---
 sysdeps/unix/sysv/linux/fstatat64.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/fstatat64.c b/sysdeps/unix/sysv/linux/fstatat64.c
index 2ab914380d..8b1a1a290d 100644
--- a/sysdeps/unix/sysv/linux/fstatat64.c
+++ b/sysdeps/unix/sysv/linux/fstatat64.c
@@ -42,7 +42,8 @@ _Static_assert (sizeof (__blkcnt_t) == sizeof (__blkcnt64_t),
 
 #if (__WORDSIZE == 32 \
      && (!defined __SYSCALL_WORDSIZE || __SYSCALL_WORDSIZE == 32)) \
-     || defined STAT_HAS_TIME32
+     || defined STAT_HAS_TIME32 \
+     || (!defined __NR_newfstatat && !defined __NR_fstatat64)
 # define FSTATAT_USE_STATX 1
 
 static inline int
-- 
2.31.1


             reply	other threads:[~2022-05-24  8:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-24  8:11 caiyinyu [this message]
2022-05-27 15:42 ` Adhemerval Zanella
  -- strict thread matches above, loose matches on Subject: below --
2022-05-22  4:03 WANG Xuerui

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