On 18 October 2026 09:35:07 BST, Josef Schlehofer <[email protected]> wrote: >The LTO link rules put $(PLATFORM_LIBS) inside --whole-archive. This >works with U-Boot's private libgcc, but pulls every member of a >toolchain libgcc into the link. With Debian's GCC 14.2, turris_1x_nor >fails to link with CONFIG_LTO=y: ld rejects the hard-float members in >this soft-float build, while other members reference __morestack_fail, >__tls_get_addr or __SDATA_START__. > >Select USE_PRIVATE_LIBGCC for mpc85xx LTO builds. The previous two >patches add the routines it was missing. This has no effect until a >later patch allows LTO on mpc85xx. > >Signed-off-by: Josef Schlehofer <[email protected]>
Reviewed-by: Bradley Morgan <[email protected]> >Cc: Tom Rini <[email protected]> >Cc: Marek Behún <[email protected]> >Cc: Priyanka Jain <[email protected]> >--- >Changes in v2: >- new patch, instead of "Makefile: Link a toolchain libgcc outside > --whole-archive with LTO" > >With the whole series, all 71 mpc85xx defconfigs link with >CONFIG_LTO=y. >--- > arch/powerpc/Kconfig | 1 + > 1 file changed, 1 insertion(+) > >diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig >index f20d58b4de6..b4883e00458 100644 >--- a/arch/powerpc/Kconfig >+++ b/arch/powerpc/Kconfig >@@ -21,6 +21,7 @@ config MPC85xx > select SYS_FSL_DDR > select SYS_FSL_DDR_BE > select SYS_FSL_IFC_BE >+ select USE_PRIVATE_LIBGCC if LTO > select BINMAN if MPC85XX_HAVE_RESET_VECTOR && OF_SEPARATE > imply CMD_HASH > imply CMD_IRQ > --- Thanks! "I'm not a very positive person" - Linus torvalds
