Cortex-R Thumb2 exception handling

https://www.raspberrypi.org/forums/viewtopic.php?f=7&t=1466
xception handlers apart from reset execute in either Thumb or ARM mode, depending on the setting of SCTLR.TE[1]
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Thumb2PortingHowto
https://wiki.ubuntu.com/ARM/Thumb2PortingHowto

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How do I run the linaro assembler for a thumb2 (T32) instruction

http://stackoverflow.com/questions/24992876/how-do-i-run-the-linaro-assembler-for-a-thumb2-t32-instruction

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Migrating a software application from ARMv5 to ARMv7-A/R Application Note 425
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0425/BABCGCJD.html

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How does the ARM Interrupt Vector Table gets initialised in Linux Kernel?
https://www.quora.com/How-does-the-ARM-Interrupt-Vector-Table-gets-initialised-in-Linux-Kernel

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Interrupt vector table alignment and thumb code

https://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/t/345506

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Transitioning from ARM v7 to ARM v8: All the basics you must know.
http://events.linuxfoundation.org/sites/events/files/slides/KoreaLinuxForum-2014.pdf

Cortex-R Series Programmer's Guide

RZ/T1 Debug

http://renesasrulz.com/renesas_forum_home/rz/f/rz---forum/5985/rz-t1-program-running-out-to-0x14-reserved-handler

Function attributes
https://gcc.gnu.org/ml/gcc-patches/2014-10/msg00656.html
http://www.onarm.com/forum/16535/