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53 lines
1.9 KiB
53 lines
1.9 KiB
# --- SDE-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# Filename: package/.../musl/0001-restore-h_errno-ABI-compatibility-with-ancient-binar.patch
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# Copyright (C) 2020 The OpenSDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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# This patch file is dual-licensed. It is available under the license the
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# patched project is licensed under, as long as it is an OpenSource license
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# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
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# of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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# --- SDE-COPYRIGHT-NOTE-END ---
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From cf27184d00c1588eccac71a3bc89c9798e60bbd9 Mon Sep 17 00:00:00 2001
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From: Rich Felker <dalias@aerifal.cx>
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Date: Sun, 30 Aug 2020 21:30:37 -0400
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Subject: [PATCH] restore h_errno ABI compatibility with ancient binaries
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prior to commit e68c51ac46a9f273927aef8dcebc89912ab19ece, h_errno was
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actually an external data object not a macro. bring back the symbol,
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and use it as the storage for the main thread's h_errno.
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technically this still doesn't provide full compatibility if the
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application was multithreaded, but at the time there were no res_*
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functions (and they did not set h_errno anyway), so any use of h_errno
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would have been via thread-unsafe functions. thus a solution that just
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fixes single-threaded applications seems acceptable.
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---
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src/network/h_errno.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/network/h_errno.c b/src/network/h_errno.c
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index 8677a92b..638f7718 100644
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--- a/src/network/h_errno.c
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+++ b/src/network/h_errno.c
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@@ -1,7 +1,11 @@
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#include <netdb.h>
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#include "pthread_impl.h"
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+#undef h_errno
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+int h_errno;
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+
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int *__h_errno_location(void)
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{
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+ if (!__pthread_self()->stack) return &h_errno;
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return &__pthread_self()->h_errno_val;
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}
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--
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2.28.0
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