Nicholas Piggin <npig...@gmail.com> writes: > Add --orphan-handling=error to final link flags. This ensures we have to > handle all sections. This would have caught subtle breakage such as > 7de3b27bac47da9de08409df1d69664acbb72197 at build-time. > > Also bring some wayward sections into the fold: > - .text.hot and .text.unlikely are compiler generated sections. > - .sfpr is a linker generated section for register save functions. > - .sdata2, .dynsbss, .plt are used by PPC32 > - We previously did not specify DWARF_DEBUG or STABS_DEBUG > - DWARF_DEBUG did not include DWARF3 .debug_ranges > - A number of sections are unused. > > I don't know if I've exactly got everything right here, particularly > with ppc32, so would appreciate people casting their eye over it. > > Signed-off-by: Nicholas Piggin <npig...@gmail.com> > --- > arch/powerpc/Makefile | 2 +- > arch/powerpc/kernel/vmlinux.lds.S | 16 ++++++++++++++-- > include/asm-generic/vmlinux.lds.h | 3 +++ > 3 files changed, 18 insertions(+), 3 deletions(-) > > diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile > index 50d020a..a3f2784 100644 > --- a/arch/powerpc/Makefile > +++ b/arch/powerpc/Makefile > @@ -90,7 +90,7 @@ endif > > LDFLAGS_vmlinux-y := -Bstatic > LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie > -LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) > +LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y) --orphan-handling=error
At least some old(er) toolchains don't support that: /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld: unrecognized option '--orphan-handling=error' So we'll need an ld-option wrapper around it. cheers
