On Mon, Jul 13, 2026 at 06:23:56PM +0200, Guillermo Rodriguez Garcia wrote: > Hello, > > Our BSP is currently defining: > > TARGET_EXTRA_CFLAGS=-mtune=cortex-a7 -mfpu=neon-vfpv4 > > However this is causing us some trouble with TF-A, as the code > generated by the toolchain contains NEON instructions, which makes it > fail at runtime with "Undefined instruction" exceptions. > > We could skip this for TF-A specifically by adding TARGET_EXTRA_CFLAGS > to TF_A_WRAPPER_BLACKLIST. > > But actually we'd like to do the same for all low level code, > including kernel and bootloaders (U-Boot, OP-TEE). Since all of these > already set <package>_WRAPPER_BLACKLIST to > $(PTXDIST_LOWLEVEL_WRAPPER_BLACKLIST), the easiest and more robust way > would be to add TARGET_EXTRA_CFLAGS to > PTXDIST_LOWLEVEL_WRAPPER_BLACKLIST itself. Is this possible?
Untested, but I think, you can create rules/pre/blacklist.make with: PTXDIST_LOWLEVEL_WRAPPER_BLACKLIST += TARGET_EXTRA_CFLAGS to your BSP (any filename is fine as long as it is in rules/pre/ and has a .make suffix). Michael -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
