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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-07-17 10:59:59 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-08-08 09:59:46 -0300
commit852d63120783fae5bf85a067320dc4ba1ed59f11 (patch)
tree46b73eb788d258b8f46f710e503d74a3f6fa4592 /sysdeps/posix/preadv2.c
parentcd65836b5fba2d34a4c04c15b47723ab9237b66a (diff)
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posix: Set p{read,write}v2 to return ENOTSUP (BZ#21780)
Different than other architectures hppa-linux-gnu define different values
for ENOTSUP and EOPNOTSUPP, where the later is a Linux specific one.
This leads to tst-preadwritev{64}v2 tests failures:

$ ./testrun.sh misc/tst-preadvwritev2
error: tst-preadvwritev2-common.c:35: preadv2 failure did not set errno to ENOTSUP (223)
error: 1 test failures

The straightforward fix is to return the POSIX defined ENOTSUP on all
p{read,write}v{64}v2 implementations instead of Linux specific one.

Checked on x86_64-linux-gnu and the tst-preadwritev{64}v2 on
hppa-linux-gnu (although due the installed kernel on my testing system
the pwritev{64}v2 with an invalid flag still fails due a known kernel
issue [1]).

	[BZ #21780]
	* sysdeps/posix/preadv2.c (preadv2): Use ENOTSUP instead of
	EOPNOTSUPP.
	* sysdeps/posix/preadv64v2.c (preadv64v2): Likewise.
	* sysdeps/posix/pwritev2.c (pwritev2): Likewise.
	* sysdeps/posix/pwritev64v2.c (pwritev64v2): Likewise.
	* sysdeps/unix/sysv/linux/preadv2.c (preadv2): Likewise.
	* sysdeps/unix/sysv/linux/preadv64v2.c (preadv64v2): Likewise.
	* sysdeps/unix/sysv/linux/pwritev2.c (pwritev2): Likewise.
	* sysdeps/unix/sysv/linux/pwritev64v2.c (pwritev64v2): Likewise.

[1] https://sourceware.org/ml/libc-alpha/2017-06/msg00726.html
Diffstat (limited to 'sysdeps/posix/preadv2.c')
-rw-r--r--sysdeps/posix/preadv2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/posix/preadv2.c b/sysdeps/posix/preadv2.c
index 2a7cf11e27..d27f7028ed 100644
--- a/sysdeps/posix/preadv2.c
+++ b/sysdeps/posix/preadv2.c
@@ -28,7 +28,7 @@ preadv2 (int fd, const struct iovec *vector, int count, OFF_T offset,
 {
   if (flags != 0)
     {
-      __set_errno (EOPNOTSUPP);
+      __set_errno (ENOTSUP);
       return -1;
     }