tree 1033d65bdd3e85bae6daef3de465de52361a4608
parent 0a16cedc0d54962d94f15a8409f66103297c60ce
author Heinrich Schuchardt <xypron.glpk@gmx.de> 1586509832 +0200
committer Tom Rini <trini@konsulko.com> 1587739892 -0400

Makefile: ARMv7-M has no CPSR register

Compiling on ARMv7-M fails when trying to address the CPSR register which
is not available on this architecture.

Atomic functions refer to the CPSR register if compiled with
arch/arm/include/asm/proc-armv/system.h. On ARMv7-M we should hence
use arch/arm/thumb1/include/asm/proc-armv/system.h instead.

Cf. https://stackoverflow.com/questions/61097841/error-selected-processor-does-not-support-requested-special-purpose-register

Reported-by: Sicris Rey Embay <sicris.embay@gmail.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>