diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.vmlinux_o | 3 | ||||
| -rwxr-xr-x | scripts/livepatch/klp-build | 5 | ||||
| -rw-r--r-- | scripts/mod/modpost.c | 1 |
3 files changed, 9 insertions, 0 deletions
diff --git a/scripts/Makefile.vmlinux_o b/scripts/Makefile.vmlinux_o index 527352c222ff..24a3a4fd271c 100644 --- a/scripts/Makefile.vmlinux_o +++ b/scripts/Makefile.vmlinux_o @@ -47,6 +47,9 @@ endif vmlinux-objtool-args-$(CONFIG_NOINSTR_VALIDATION) += --noinstr \ $(if $(or $(CONFIG_MITIGATION_UNRET_ENTRY),$(CONFIG_MITIGATION_SRSO)), --unret) +# Only used for builds initiated by klp-build +vmlinux-objtool-args-$(if $(KLP_SYMIDS),y) += --klp-symids + objtool-args = $(vmlinux-objtool-args-y) --link # Link of vmlinux.o used for section mismatch analysis diff --git a/scripts/livepatch/klp-build b/scripts/livepatch/klp-build index a8c103ce7763..f94e324ff53c 100755 --- a/scripts/livepatch/klp-build +++ b/scripts/livepatch/klp-build @@ -271,6 +271,9 @@ validate_config() { [[ -v CONFIG_GCC_PLUGIN_RANDSTRUCT ]] && \ die "kernel option 'CONFIG_GCC_PLUGIN_RANDSTRUCT' not supported" + [[ -v CONFIG_LD_DEAD_CODE_DATA_ELIMINATION ]] && \ + die "kernel option 'CONFIG_LD_DEAD_CODE_DATA_ELIMINATION' not supported" + [[ -v CONFIG_AS_IS_LLVM ]] && \ [[ "$CONFIG_AS_VERSION" -lt 200000 ]] && \ die "Clang assembler version < 20 not supported" @@ -555,6 +558,8 @@ build_kernel() { # cmd+=("KBUILD_MODPOST_WARN=1") + cmd+=("KLP_SYMIDS=1") + if [[ -v VERBOSE ]]; then cmd+=("V=1") else diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index a7b72a81d248..027944fe35b4 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -767,6 +767,7 @@ static const char *const section_white_list[] = ".llvm.call-graph-profile", /* call graph */ "__llvm_covfun", "__llvm_covmap", + ".klp.symid", /* objtool --klp-symids */ NULL }; |