Joel Stanley <j...@jms.id.au> writes: > Building the ppc64 kernel with a modern binutils results in this > warning: > > powerpc64le-linux-gnu-ld: warning: orphan section `.gnu.hash' from > `linker stubs' being placed in section `.gnu.hash' > > Alan Modra <amo...@gmail.com> explains: > > > .gnu.hash, like .hash, is used by glibc ld.so for dynamic symbol > > lookup. I imagine you don't need either section in a kernel, so > > discarding both sounds reasonable. Likely you could discard .interp > > and .dynstr too, and .dynsym when !CONFIG_PPC32. > > Reported-by: Stephen Rothwell <s...@canb.auug.org.au> > Signed-off-by: Joel Stanley <j...@jms.id.au> > --- > See > https://lore.kernel.org/lkml/CACPK8Xft3n5KkpTjN3=7_vucxhfck7mxvzm2rrqu7tppcbo...@mail.gmail.com/T/#m58532c86cf0c7b4fb01cc1fe724e48d4c7d8e4a7 > > v3: Add dynstr hunk to this patch (it was incorrectly left in patch 2) > --- > arch/powerpc/kernel/vmlinux.lds.S | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-)
Building ppc64le_defconfig with gcc 8.1.0 / binutils 2.30, this is giving me: /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux1: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux2: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux2: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux2: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: .tmp_vmlinux2: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-nm: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-objdump: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-objdump: vmlinux: attempt to load strings from a non-string section (number 0) WARNING: 2 bad relocations c000000001490a50 R_PPC64_ADDR64 (null) c000000001490a68 R_PPC64_ADDR64 (null) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-objdump: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-objdump: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-objdump: vmlinux: attempt to load strings from a non-string section (number 0) /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-objdump: vmlinux: attempt to load strings from a non-string section (number 0) Haven't had time to dig into why yet. cheers
