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From: "Torbjörn SVENSSON" <torbjorn.svensson@foss.st.com>
To: <newlib@sourceware.org>
Subject: [PATCH v2] Restore _lock initialization in non-single threaded mode
Date: Tue, 30 Aug 2022 15:54:53 +0200	[thread overview]
Message-ID: <20220830135452.2247049-1-torbjorn.svensson@foss.st.com> (raw)
Message-ID: <20220830135453.m-nRkpDP6PohL1-Mn6-sBtRnVQg93WxUXEXCdvBGW64@z> (raw)

When __SINGLE_THREAD__ is not defined, stdin, stdout and stderr needs
to have their _lock instance initialized. The __sfp() method is not
invoked for the 3 mentioned fds thus, the std() method needs to handle
the initialization of the lock.

This is more or less a revert of 382550072b49430f8c69adee937a0ba07bd385e6

Contributed by STMicroelectronics

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
---
 newlib/libc/stdio/findfp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c
index c43028209..2cc549537 100644
--- a/newlib/libc/stdio/findfp.c
+++ b/newlib/libc/stdio/findfp.c
@@ -88,6 +88,10 @@ std (FILE *ptr,
 #else /* _STDIO_CLOSE_STD_STREAMS */
   ptr->_close = NULL;
 #endif /* _STDIO_CLOSE_STD_STREAMS */
+#ifndef __SINGLE_THREAD__
+  if (ptr == &__sf[0] || ptr == &__sf[1] || ptr == &__sf[2])
+    __lock_init_recursive (ptr->_lock);
+#endif
 #ifdef __SCLE
   if (__stextmode (ptr->_file))
     ptr->_flags |= __SCLE;
-- 
2.25.1


             reply	other threads:[~2022-08-30 13:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-30 13:54 Torbjörn SVENSSON [this message]
2022-08-30 13:54 ` Torbjörn SVENSSON
2022-08-31  8:07 ` Corinna Vinschen

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