4.14-stable review patch. If anyone has any objections, please let me know.
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From: Joel Stanley joel@jms.id.au
commit 98ecc6768e8fdba95da1fc1efa0ef2d769e7fe1c upstream.
When building a 32 bit powerpc kernel with Binutils 2.31.1 this warning is emitted:
powerpc-linux-gnu-ld: warning: orphan section `.branch_lt' from `arch/powerpc/kernel/head_44x.o' being placed in section `.branch_lt'
As of binutils commit 2d7ad24e8726 ("Support PLT16 relocs against local symbols")[1], 32 bit targets can produce .branch_lt sections in their output.
Include these symbols in the .data section as the ppc64 kernel does.
[1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git%3Ba=commitdiff%3Bh=... Signed-off-by: Joel Stanley joel@jms.id.au Reviewed-by: Alan Modra amodra@gmail.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Cc: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+)
--- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -322,6 +322,7 @@ SECTIONS *(.sdata2) *(.got.plt) *(.got) *(.plt) + *(.branch_lt) } #else .data : AT(ADDR(.data) - LOAD_OFFSET) {