Date: Mon, 6 Jan 2020 22:52:17 -0800 From: Mark Millard <marklmi@yahoo.com> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: Involving devel/binutils@powerpc64 in buildworld buildkernel : got/toc optimization is not supported for addis %r1,%r1,TOC_REF(trapstk)@ha (and the like) Message-ID: <00DFB84D-D694-4BCA-A15F-5098F0320FA9@yahoo.com> References: <00DFB84D-D694-4BCA-A15F-5098F0320FA9.ref@yahoo.com>
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The following is based on what I noticed while
working on updating to head -r356426 , including
building multiple ways (discovering what fails
to build and such).
I was looking at messages and noticed that there
were messages such as:
--- kernel.full ---
locore.o: in function `dbtrap':
/usr/src/sys/powerpc/aim/trap_subr64.S:905:(.text+0xa68): got/toc =
optimization is not supported for 0x3c210000 instruction
That is the addis instruction in:
dbtrap:
/* Write the trap vector to SPRG3 by computing LR & 0xff00 */
mflr %r1
andi. %r1,%r1,0xff00
mtsprg3 %r1
=20
GET_TOCBASE(%r1) /* get new SP */
addis %r1,%r1,TOC_REF(trapstk)@ha
ld %r1,TOC_REF(trapstk)@l(%r1)
addi %r1,%r1,(TRAPSTKSZ-48)
(based on line number).
This was for system-clang and devel/binutils@powerpc64
being used to do the build.
But it also happened for devel/freebsd-gcc9@powerpc64
and devel/binutils@powerpc64 bing used to do the
build:
--- kernel.full ---
locore.o: in function `dbtrap':
/usr/src/sys/powerpc/aim/trap_subr64.S:905:(.text+0xa68): got/toc =
optimization is not supported for 0x3c210000 instruction
(Same instruction, same message.)
There are lots of similar messages for other instruction
encodings for zfs.ko.full --but only for the
devel/freebsd-gcc9@powerpc64 and devel/binutils@powerpc64
combination:
--- zfs.ko.full ---
zfs.kld: in function `acl_trivial_create':
=
/usr/src/sys/cddl/contrib/opensolaris/common/acl/acl_common.c:1646:(.text+=
0x568): got/toc optimization is not supported for 0x3d9e0000 instruction
zfs.kld: in function `cacl_malloc':
=
/usr/src/sys/cddl/contrib/opensolaris/common/acl/acl_common.c:243:(.text+0=
x5e0): got/toc optimization is not supported for 0x3d9e0000 instruction
zfs.kld: in function `ace_trivial':
=
/usr/src/sys/cddl/contrib/opensolaris/common/acl/acl_common.c:1764:(.text+=
0x990): got/toc optimization is not supported for 0x3d9e0000 instruction
zfs.kld: in function `avl_nearest':
. . .
The list for zfs.ko.full is large.
Overall there are examples of each of:
got/toc optimization is not supported for 0x3c210000 instruction
got/toc optimization is not supported for 0x3c9e0000 instruction
got/toc optimization is not supported for 0x3cbe0000 instruction
got/toc optimization is not supported for 0x3cde0000 instruction
got/toc optimization is not supported for 0x3cfe0000 instruction
got/toc optimization is not supported for 0x3d1e0000 instruction
got/toc optimization is not supported for 0x3d3e0000 instruction
got/toc optimization is not supported for 0x3d5e0000 instruction
got/toc optimization is not supported for 0x3d9e0000 instruction
got/toc optimization is not supported for 0x3dde0000 instruction
got/toc optimization is not supported for 0x3dfe0000 instruction
got/toc optimization is not supported for 0x3e1e0000 instruction
got/toc optimization is not supported for 0x3e3e0000 instruction
got/toc optimization is not supported for 0x3e5e0000 instruction
got/toc optimization is not supported for 0x3e7e0000 instruction
got/toc optimization is not supported for 0x3e9e0000 instruction
got/toc optimization is not supported for 0x3ebe0000 instruction
got/toc optimization is not supported for 0x3ede0000 instruction
got/toc optimization is not supported for 0x3efe0000 instruction
got/toc optimization is not supported for 0x3f1e0000 instruction
got/toc optimization is not supported for 0x3f3e0000 instruction
got/toc optimization is not supported for 0x3f5e0000 instruction
got/toc optimization is not supported for 0x3f7e0000 instruction
got/toc optimization is not supported for 0x3f9e0000 instruction
got/toc optimization is not supported for 0x3fbe0000 instruction
I'm not sure of the implications, but I figured that the
information might be of use at some point.
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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