Provide Thumb2 support on armel - See LP Bug #673085 for details
Index: qt-everywhere-opensource-src-4.7.1/src/corelib/arch/qatomic_armv6.h
===================================================================
--- qt-everywhere-opensource-src-4.7.1.orig/src/corelib/arch/qatomic_armv6.h
2010-11-06 01:55:18.000000000 +0000
+++ qt-everywhere-opensource-src-4.7.1/src/corelib/arch/qatomic_armv6.h
2010-11-16 17:58:27.831286420 +0000
@@ -144,6 +144,7 @@
asm volatile("0:\n"
"ldrex %[result], [%[_q_value]]\n"
"eors %[result], %[result], %[expectedValue]\n"
+ "itt eq\n"
"strexeq %[result], %[newValue], [%[_q_value]]\n"
"teqeq %[result], #1\n"
"beq 0b\n"
@@ -202,6 +203,7 @@
asm volatile("0:\n"
"ldrex %[result], [%[_q_value]]\n"
"eors %[result], %[result], %[expectedValue]\n"
+ "itt eq\n"
"strexeq %[result], %[newValue], [%[_q_value]]\n"
"teqeq %[result], #1\n"
"beq 0b\n"
I'm neither the author nor the uploader of the patch, so I'm not sure who is
sending this upstream, but I agree someone should.
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https://bugs.launchpad.net/bugs/490371
Title:
Atomic operations not safe for ARMv7,Thumb-2 and multicore
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