nrf/mpconfigport: Enable MICROPY_NLR_THUMB_USE_LONG_JUMP on nRF51xx.

dpgeorge · dpgeorge · commit e60e8079a7e1 · 2024-04-26T11:15:59.000+10:00
Signed-off-by: Damien George &lt;damien@micropython.org&gt;
diff --git a/ports/nrf/mpconfigport.h b/ports/nrf/mpconfigport.h
@@ -59,6 +59,12 @@
 
 // options to control how MicroPython is built
 
+// Due to the use of LTO and the unknown distance between nlr.o and nlrthumb.o code,
+// MCUs using the Thumb 1 instruction set must enable this NLR long jump feature.
+#if defined(NRF51822)
+#define MICROPY_NLR_THUMB_USE_LONG_JUMP    (1)
+#endif
+
 #ifndef MICROPY_VFS
 #define MICROPY_VFS                        (CORE_FEAT)
 #endif
