From: Samuel Holland <samuel@sholland.org>
Date: Sat, 29 Jun 2019 23:19:05 +0000 (-0500)
Subject: use the correct attributes for ___errno_location
X-Git-Tag: v1.1.23~5
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c225e6c1a4e6a89447cb00a71f50ae00f8f5ec3f;p=oweals%2Fmusl.git

use the correct attributes for ___errno_location

In the public header, __errno_location is declared with the "const"
attribute, conditional on __GNUC__. Ensure that its internal alias has
the same attributes.

Maintainer's note: This change also fixes a regression in quality of
code generation -- multiple references to errno in a single function
started generating multiple calls again -- introduced by commit
e13063aad7aee341d278d2a879a76ec7b59b2ad8.
---

diff --git a/src/include/errno.h b/src/include/errno.h
index 54a38ff4..8ec49377 100644
--- a/src/include/errno.h
+++ b/src/include/errno.h
@@ -3,6 +3,9 @@
 
 #include "../../include/errno.h"
 
+#ifdef __GNUC__
+__attribute__((const))
+#endif
 hidden int *___errno_location(void);
 
 #undef errno