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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-04-26 18:34:47 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2017-05-02 14:57:40 -0300
commit827b82378366b026413c8e80a78ba880b9f94a18 (patch)
treeb1c604d790122f66fc43b5a9ff6b6fd59fa9fe02 /include
parent24a10cfb3e46e8bf7257c099a2ed7c8814624f05 (diff)
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posix: Fix internal p{read,write} plt usage
This patch adds internal alias for __pread, __pread64, and __pwrite
following the already in place one for __pwrite64.  This is not used
in any implementation but on microblaze on preadv/pwritev fallback
(since it does not define __ASSUME_PREADV).

In fact it was signaled by commit c35db50ff5 which update the expected
localptl.data for the architecture based on resulted value.  This patch
updates the plt for microblaze now that p{read,write}{64} are correctly
routed to use internal alias.

Checked on x86_64-linux-gnu and a build for all supported architectures
(no all variants although).

	* include/unistd.h (__pread): Add libc_hidden_proto.
	(__pread64): Likewise.
	(__pwrite): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/localplt.data [libc.so]
	(__pread64): Remove.
	* sysdeps/unix/sysv/linux/pread.c (__pread64): Add libc_hidden_weak.
	* sysdeps/unix/sysv/linux/pread64.c (__pread64): Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c (__pwrite): Likewise.
Diffstat (limited to 'include')
-rw-r--r--include/unistd.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/unistd.h b/include/unistd.h
index 16a88153a0..f36759b24d 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -33,14 +33,17 @@ extern __off_t __libc_lseek (int __fd, __off_t __offset, int __whence);
 extern __off64_t __libc_lseek64 (int __fd, __off64_t __offset, int __whence);
 extern ssize_t __pread (int __fd, void *__buf, size_t __nbytes,
 			__off_t __offset);
+libc_hidden_proto (__pread);
 extern ssize_t __libc_pread (int __fd, void *__buf, size_t __nbytes,
 			     __off_t __offset);
 extern ssize_t __pread64 (int __fd, void *__buf, size_t __nbytes,
 			  __off64_t __offset);
+libc_hidden_proto (__pread64);
 extern ssize_t __libc_pread64 (int __fd, void *__buf, size_t __nbytes,
 			       __off64_t __offset);
 extern ssize_t __pwrite (int __fd, const void *__buf, size_t __n,
 			 __off_t __offset);
+libc_hidden_proto (__pwrite)
 extern ssize_t __libc_pwrite (int __fd, const void *__buf, size_t __n,
 			      __off_t __offset);
 extern ssize_t __pwrite64 (int __fd, const void *__buf, size_t __n,