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authorFlorian Weimer <fweimer@redhat.com>2020-10-07 16:39:50 +0200
committerFlorian Weimer <fweimer@redhat.com>2020-10-07 16:41:30 +0200
commitb31d4355ae817aa3caf9414f842cc07465bca028 (patch)
tree92b53e557c324461904d3bcb0f1131cc15ae7aa9 /sysdeps/generic/ldsodefs.h
parent56f8d442942ee51824b4683be83f776a811a3f2a (diff)
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elf: Implement _dl_write
The generic version is parallel to _dl_writev.  It cannot use
_dl_writev directly because the errno value needs to be obtained
under a lock.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/generic/ldsodefs.h')
-rw-r--r--sysdeps/generic/ldsodefs.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index ba114ab4b1..7cb1fccc80 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -757,6 +757,12 @@ _dl_dprintf (int fd, const char *fmt, ...)
 }
 #endif
 
+/* Write LENGTH bytes at BUFFER to FD, like write.  Returns the number
+   of bytes written on success, or a negative error constant on
+   failure.  */
+ssize_t _dl_write (int fd, const void *buffer, size_t length)
+  attribute_hidden;
+
 /* Write a message on the specified descriptor standard output.  The
    parameters are interpreted as for a `printf' call.  */
 void _dl_printf (const char *fmt, ...)