2012/11/24 Zhi-zhou Zhang <zhizhou...@gmail.com>: > If bal is 8 bytes aligned, the _gp will not be 8 bytes aligned. > then the following ld insntrustion generates a Adel exception. > So here make _gp be always aligned in 8 bytes.
which toolchain do you use? Actually _gp is aligned to 16 bytes in the linker script. Thus the instruction "ld gp, 0(ra)" and the address loaded into gp is always aligned to 8 bytes. This works at least with ELDK-5.2.1 and a self-built gcc-4.7.2. > > Signed-off-by: Zhi-zhou Zhang <zhizhou...@gmail.com> > --- > arch/mips/cpu/mips64/start.S | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/arch/mips/cpu/mips64/start.S b/arch/mips/cpu/mips64/start.S > index 4112de7..8e8cc33 100644 > --- a/arch/mips/cpu/mips64/start.S > +++ b/arch/mips/cpu/mips64/start.S > @@ -108,7 +108,10 @@ reset: > mtc0 t0, CP0_CONFIG > #endif > > - /* Initialize $gp */ > + /* Initialize $gp, _gp must be 8 bytes algined. */ > + .align 3 > + nop > + nop > bal 1f > nop > .dword _gp > -- > 1.7.9.5 > -- Best regards, Daniel _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
