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open64: Force O_LARGEFILE on all architectures

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When running tests on OpenRISC which has 32-bit wordsize but 64-bit
timesize it was found that O_LARGEFILE is not being set when calling
open64.  For 64-bit architectures the O_LARGEFILE flag is generally
implied by the kernel according to force_o_largefile.  However, for
32-bit architectures this is not done.

For this patch we unconditionally now set the O_LARGEFILE flag for
open64 class syscalls as there is no harm in doing so.

Tested on the OpenRISC the build works and timezone/tst-tzset passes
which was failing before.  I would expect this also would fix arc.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Stafford Horne
2021-12-26 15:24:53 +09:00
parent c21c7bc24e
commit 4dfa8f4870
4 changed files with 4 additions and 29 deletions
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9
sysdeps/unix/sysv/linux/open64.c
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@ -23,13 +23,6 @@
#include <sysdep-cancel.h>
#include <shlib-compat.h>
#ifdef __OFF_T_MATCHES_OFF64_T
# define EXTRA_OPEN_FLAGS 0
#else
# define EXTRA_OPEN_FLAGS O_LARGEFILE
#endif
/* Open FILE with access OFLAG. If O_CREAT or O_TMPFILE is in OFLAG,
a third argument is the file protection. */
int
@ -45,7 +38,7 @@ __libc_open64 (const char *file, int oflag, ...)
va_end (arg);
}
return SYSCALL_CANCEL (openat, AT_FDCWD, file, oflag | EXTRA_OPEN_FLAGS,
return SYSCALL_CANCEL (openat, AT_FDCWD, file, oflag | O_LARGEFILE,
mode);
}