From a02927b94ae4e8688571536667550853abda7b51 Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Sun, 12 Sep 2021 14:22:52 +0200 Subject: [PATCH] package/bluez5_utils: fix build pause() is defined in glibc since the very early times; it appears in upstream commit 28f540f45bba (initial import) in 1995 [0]. Bluez has been defining a function named pause() for ages too, since comit caab74c97542 (media: Implement new callbacks for pass-through operations) in 2013 [1] With the recent bump to glibc 2.34.xxx, the build now fails because the two pause() clash: profiles/audio/media.c:1284:13: error: conflicting types for 'pause' 1284 | static bool pause(void *user_data) | ^~~~~ In file included from /tmp/instance-0/output-1/per-package/bluez5_utils/host/s390x-buildroot-linux-gnu/sysroot/usr/include/bits/sigstksz.h:24, from /tmp/instance-0/output-1/per-package/bluez5_utils/host/s390x-buildroot-linux-gnu/sysroot/usr/include/signal.h:328, from /tmp/instance-0/output-1/per-package/bluez5_utils/host/bin/../s390x-buildroot-linux-gnu/sysroot/usr/include/glib-2.0/glib/gbacktrace.h:36, from /tmp/instance-0/output-1/per-package/bluez5_utils/host/bin/../s390x-buildroot-linux-gnu/sysroot/usr/include/glib-2.0/glib.h:34, from profiles/audio/media.c:21: /tmp/instance-0/output-1/per-package/bluez5_utils/host/s390x-buildroot-linux-gnu/sysroot/usr/include/unistd.h:489:12: note: previous declaration of 'pause' was here 489 | extern int pause (void); | ^~~~~ The culprit is indeed glibc 2.34, as can be seen in this result matrix: \ bluez5_utils glibc \ 5.60 | 5.61 -------\-------+-------- 2.33 | OK | OK -------+-------+-------- 2.34 | KO | KO Even though we first bumped to glibc 2.34, then to blues5_utils 5.61, we did not notice build issues with bluez5_utils 5.60 because the two bumps were too close to each other for the failure to trigger in the autobuilders. The underlying reason that pause() is now causing issues with glibc 2.34 is not obvious: glibc is a big beast, and finding such issues is not easy. However, we can see that the pause() provided by NPTL has been dropped in favour of the generic one, so maybe this is causing symbol visibility or weakness to change or something... We fix that by renaming the local pause() in bluez5_utils with a namespace-prefix, like some other functions there already have. Fixes: - http://autobuild.buildroot.org/results/c4f/c4fbface34be8815838fd7201621d7a8fddd32c5/ - http://autobuild.buildroot.org/results/62b/62b88740f19fbe4a1ad7959dc141d539eb88c1f8/ [0] https://sourceware.org/git/?p=glibc.git;a=commit;h=28f540f45bbacd939bfd07f213bcad2bf730b1bf [1] https://github.com/bluez/bluez/commit/caab74c97542a56b591f0b16b44ab6ba4b40f0f5 Signed-off-by: Fabrice Fontaine [yann.morin.1998@free.fr: extend commit log with the glibc culprit] Signed-off-by: Yann E. MORIN --- ...-profiles-audio-media.c-rename-pause.patch | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 package/bluez5_utils/0002-profiles-audio-media.c-rename-pause.patch diff --git a/package/bluez5_utils/0002-profiles-audio-media.c-rename-pause.patch b/package/bluez5_utils/0002-profiles-audio-media.c-rename-pause.patch new file mode 100644 index 0000000000..a7fabc9edd --- /dev/null +++ b/package/bluez5_utils/0002-profiles-audio-media.c-rename-pause.patch @@ -0,0 +1,52 @@ +From 0bb5785a68a2799db003364770be3764af9b9034 Mon Sep 17 00:00:00 2001 +From: Fabrice Fontaine +Date: Sun, 12 Sep 2021 13:55:49 +0200 +Subject: [PATCH] profiles/audio/media.c: rename pause + +Rename pause to media_player_pause to avoid the following build failure: + +profiles/audio/media.c:1284:13: error: conflicting types for 'pause' + 1284 | static bool pause(void *user_data) + | ^~~~~ +In file included from /tmp/instance-0/output-1/per-package/bluez5_utils/host/s390x-buildroot-linux-gnu/sysroot/usr/include/bits/sigstksz.h:24, + from /tmp/instance-0/output-1/per-package/bluez5_utils/host/s390x-buildroot-linux-gnu/sysroot/usr/include/signal.h:328, + from /tmp/instance-0/output-1/per-package/bluez5_utils/host/bin/../s390x-buildroot-linux-gnu/sysroot/usr/include/glib-2.0/glib/gbacktrace.h:36, + from /tmp/instance-0/output-1/per-package/bluez5_utils/host/bin/../s390x-buildroot-linux-gnu/sysroot/usr/include/glib-2.0/glib.h:34, + from profiles/audio/media.c:21: +/tmp/instance-0/output-1/per-package/bluez5_utils/host/s390x-buildroot-linux-gnu/sysroot/usr/include/unistd.h:489:12: note: previous declaration of 'pause' was here + 489 | extern int pause (void); + | ^~~~~ + +Fixes: + - http://autobuild.buildroot.org/results/c4fbface34be8815838fd7201621d7a8fddd32c5 + +Signed-off-by: Fabrice Fontaine +--- + profiles/audio/media.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/profiles/audio/media.c b/profiles/audio/media.c +index 267722542..f93b74e67 100644 +--- a/profiles/audio/media.c ++++ b/profiles/audio/media.c +@@ -1281,7 +1281,7 @@ static bool stop(void *user_data) + return media_player_send(mp, "Stop"); + } + +-static bool pause(void *user_data) ++static bool media_player_pause(void *user_data) + { + struct media_player *mp = user_data; + +@@ -1331,7 +1331,7 @@ static struct avrcp_player_cb player_cb = { + .set_volume = set_volume, + .play = play, + .stop = stop, +- .pause = pause, ++ .pause = media_player_pause, + .next = next, + .previous = previous, + }; +-- +2.33.0 + -- 2.30.2