RTEMS may be booted from a dirty environment. Ensure that FPU trap settings are consistent. --- bsps/aarch64/shared/start/start.S | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/bsps/aarch64/shared/start/start.S b/bsps/aarch64/shared/start/start.S index 8bd4f86f4e..de0fdf4c80 100644 --- a/bsps/aarch64/shared/start/start.S +++ b/bsps/aarch64/shared/start/start.S @@ -307,6 +307,16 @@ _el1_start: /* FPU does not need to be enabled on AArch64 */ + /* Ensure FPU traps are disabled by default */ + mrs x0, FPCR + bic x0, x0, #(1 << 8) + bic x0, x0, #(1 << 9) + bic x0, x0, #(1 << 10) + bic x0, x0, #(1 << 11) + bic x0, x0, #(1 << 12) + bic x0, x0, #(1 << 15) + msr FPCR, x0 + #endif /* AARCH64_MULTILIB_VFP */ /* Branch to start hook 1 */ -- 2.30.2 _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel