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sandbox: use O_CLOEXEC in os_open()

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During a cold reset execv() is used to relaunch the U-Boot binary.
We must ensure that all files are closed in this case.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2020-10-27 20:29:24 +01:00 committed by Simon Glass
parent 35d949222f
commit c0b19f25a1
1 changed files with 5 additions and 0 deletions
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5
arch/sandbox/cpu/os.c
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@ -80,6 +80,11 @@ int os_open(const char *pathname, int os_flags)
flags |= O_CREAT; flags |= O_CREAT;
if (os_flags & OS_O_TRUNC) if (os_flags & OS_O_TRUNC)
flags |= O_TRUNC; flags |= O_TRUNC;
/*
* During a cold reset execv() is used to relaunch the U-Boot binary.
* We must ensure that all files are closed in this case.
*/
flags |= O_CLOEXEC;
return open(pathname, flags, 0777); return open(pathname, flags, 0777);
} }