diff options
| author | Naveen N Rao <naveen@kernel.org> | 2024-10-30 12:38:44 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2024-10-31 11:00:54 +1100 |
| commit | 1198c9c689cfdaa2d08eb508c13ff116043f07b7 (patch) | |
| tree | fc45431aa5f77b52bede9f39add47fb374a4369d /scripts/link-vmlinux.sh | |
| parent | 782f46cbce5328da9380f166bd31cd17a04a7b10 (diff) | |
kbuild: Add generic hook for architectures to use before the final vmlinux link
On powerpc, we would like to be able to make a pass on vmlinux.o and
generate a new object file to be linked into vmlinux. Add a generic pass
in Makefile.vmlinux that architectures can use for this purpose.
Architectures need to select CONFIG_ARCH_WANTS_PRE_LINK_VMLINUX and must
provide arch/<arch>/tools/Makefile with .arch.vmlinux.o target, which
will be invoked prior to the final vmlinux link step.
Acked-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Naveen N Rao <naveen@kernel.org>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/20241030070850.1361304-12-hbathini@linux.ibm.com
Diffstat (limited to 'scripts/link-vmlinux.sh')
| -rwxr-xr-x | scripts/link-vmlinux.sh | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index a9b3f34a78d2..a3c634b2f348 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -100,7 +100,7 @@ vmlinux_link() ${ld} ${ldflags} -o ${output} \ ${wl}--whole-archive ${objs} ${wl}--no-whole-archive \ ${wl}--start-group ${libs} ${wl}--end-group \ - ${kallsymso} ${btf_vmlinux_bin_o} ${ldlibs} + ${kallsymso} ${btf_vmlinux_bin_o} ${arch_vmlinux_o} ${ldlibs} } # generate .BTF typeinfo from DWARF debuginfo @@ -198,6 +198,11 @@ fi ${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init init/version-timestamp.o +arch_vmlinux_o= +if is_enabled CONFIG_ARCH_WANTS_PRE_LINK_VMLINUX; then + arch_vmlinux_o=arch/${SRCARCH}/tools/vmlinux.arch.o +fi + btf_vmlinux_bin_o= kallsymso= strip_debug= |