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--blx_thumb_arm, --no_blx_thumb_arm
Enables the linker to use the BLX instruction for T32 to A32 state changes.
Usage
If the linker cannot use BLX it must use a T32 to A32
interworking veneer to perform the state change.
This option is on by default. It has no effect if the target
architecture does not support BLX or when linking for AArch64 state.