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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-05-28 18:47:04 +0300 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-06-05 00:20:57 +0300 |
| commit | b42d2306502419688190aa6dd4dab4a6def24b3d (patch) | |
| tree | 89a23a22dc7f90aacedb20c60f53723dd72ea562 /scripts/link-vmlinux.sh | |
| parent | 5d45950dfbb1540bba3e3762a3497de8b4a715d3 (diff) | |
| download | linux-b42d2306502419688190aa6dd4dab4a6def24b3d.tar.xz | |
kbuild: factor out the common objtool arguments
scripts/Makefile.build and scripts/link-vmlinux.sh have similar setups
for the objtool arguments.
It was difficult to factor out them because all the vmlinux build rules
were written in a shell script. It is somewhat tedious to touch the two
files every time a new objtool option is supported.
To reduce the code duplication, move the objtool for vmlinux.o into
scripts/Makefile.vmlinux_o. Then, move the common macros to Makefile.lib
so they are shared between Makefile.build and Makefile.vmlinux_o.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
Diffstat (limited to 'scripts/link-vmlinux.sh')
| -rwxr-xr-x | scripts/link-vmlinux.sh | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index bf685d4547c1..eecc1863e556 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -45,76 +45,6 @@ info() printf " %-7s %s\n" "${1}" "${2}" } -objtool_link() -{ - local objtoolcmd; - local objtoolopt; - - if ! is_enabled CONFIG_OBJTOOL; then - return; - fi - - if is_enabled CONFIG_LTO_CLANG || is_enabled CONFIG_X86_KERNEL_IBT; then - - # For LTO and IBT, objtool doesn't run on individual - # translation units. Run everything on vmlinux instead. - - if is_enabled CONFIG_HAVE_JUMP_LABEL_HACK; then - objtoolopt="${objtoolopt} --hacks=jump_label" - fi - - if is_enabled CONFIG_HAVE_NOINSTR_HACK; then - objtoolopt="${objtoolopt} --hacks=noinstr" - fi - - if is_enabled CONFIG_X86_KERNEL_IBT; then - objtoolopt="${objtoolopt} --ibt" - fi - - if is_enabled CONFIG_FTRACE_MCOUNT_USE_OBJTOOL; then - objtoolopt="${objtoolopt} --mcount" - fi - - if is_enabled CONFIG_UNWINDER_ORC; then - objtoolopt="${objtoolopt} --orc" - fi - - if is_enabled CONFIG_RETPOLINE; then - objtoolopt="${objtoolopt} --retpoline" - fi - - if is_enabled CONFIG_SLS; then - objtoolopt="${objtoolopt} --sls" - fi - - if is_enabled CONFIG_STACK_VALIDATION; then - objtoolopt="${objtoolopt} --stackval" - fi - - if is_enabled CONFIG_HAVE_STATIC_CALL_INLINE; then - objtoolopt="${objtoolopt} --static-call" - fi - - objtoolopt="${objtoolopt} --uaccess" - fi - - if is_enabled CONFIG_NOINSTR_VALIDATION; then - objtoolopt="${objtoolopt} --noinstr" - fi - - if [ -n "${objtoolopt}" ]; then - - if is_enabled CONFIG_GCOV_KERNEL; then - objtoolopt="${objtoolopt} --no-unreachable" - fi - - objtoolopt="${objtoolopt} --link" - - info OBJTOOL ${1} - tools/objtool/objtool ${objtoolopt} ${1} - fi -} - # Link of vmlinux # ${1} - output file # ${2}, ${3}, ... - optional extra .o files @@ -298,7 +228,6 @@ ${MAKE} -f "${srctree}/scripts/Makefile.build" obj=init need-builtin=1 #link vmlinux.o ${MAKE} -f "${srctree}/scripts/Makefile.vmlinux_o" -objtool_link vmlinux.o # Generate the list of in-tree objects in vmlinux # |