Source: qtdeclarative-opensource-src
Severity: important
Tags: patch
User: debian-i...@lists.debian.org
Usertags: ia64
Dear Maintainer,
As reported in bug #894726, qtdeclarative-opensource-src has a bug on
systems that use 64-bit pointers with any bits from 63-50 set. The
attached patch addresses this issue on ia64 by shifting bits 63-61
(which are the "virtual region number" on ia64) into bits 49-47. Please
include it in the next release.
Thank you.
-- System Information:
Debian Release: 10.0
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: ia64
Kernel: Linux 5.0.0-trunk-mckinley (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
--- a/src/qml/jsruntime/qv4value_p.h 2019-05-24 21:55:24.436238822 -0400
+++ b/src/qml/jsruntime/qv4value_p.h 2019-05-24 22:08:26.832635233 -0400
@@ -146,12 +146,24 @@
QML_NEARLY_ALWAYS_INLINE Heap::Base *m() const
{
Heap::Base *b;
- memcpy(&b, &_val, 8);
+#ifdef __ia64
+ quint64 _tmp;
+
+ _tmp = _val & 0x0001c00000000000;
+ _tmp = (_tmp << 14) | (_val ^ _tmp);
+ memcpy(&b, &_tmp, 8);
+#else
+ memcpy(&b, &_val, 8);
+#endif
return b;
}
QML_NEARLY_ALWAYS_INLINE void setM(Heap::Base *b)
{
memcpy(&_val, &b, 8);
+#ifdef __ia64
+ _val |= ((_val & 0xa000000000000000) >> 14);
+ _val &= 0x0001ffffffffffff;
+#endif
}
#elif QT_POINTER_SIZE == 4
QML_NEARLY_ALWAYS_INLINE Heap::Base *m() const
