clayborg requested changes to this revision.
clayborg added a comment.
This revision now requires changes to proceed.
There are immediate values you can play around with inside the BKPT instruction
of both ARM and Thumb versions so that the two least significant bytes are the
same:
static const uint8_t g_arm_breakpoint_opcode[] = { 0x70, 0xBE, 0x20, 0xE1 };
static const uint8_t g_thumb_breakpoint_opcode[] = { 0x70, 0xBE };
Note both start with 0xBE70 when using the above definitions. This means if you
guess wrong and set an ARM breakpoint in Thumb code, you will still stop and
not hose your program over. I would recommend using these values just to be
safe.
http://reviews.llvm.org/D16853
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