diff options
Diffstat (limited to 'debian/patches/debian/kbuild-look-for-module.lds-under-arch-directory-too.patch')
| -rw-r--r-- | debian/patches/debian/kbuild-look-for-module.lds-under-arch-directory-too.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/debian/patches/debian/kbuild-look-for-module.lds-under-arch-directory-too.patch b/debian/patches/debian/kbuild-look-for-module.lds-under-arch-directory-too.patch new file mode 100644 index 000000000..f9a22d892 --- /dev/null +++ b/debian/patches/debian/kbuild-look-for-module.lds-under-arch-directory-too.patch @@ -0,0 +1,52 @@ +From: Ben Hutchings <benh@debian.org> +Date: Thu, 10 Dec 2020 17:31:39 +0100 +Subject: kbuild: Look for module.lds under arch directory too +Forwarded: not-needed +Bug-Debian: https://bugs.debian.org/975571 + +The module.lds linker script is now built under the scripts directory, +where previously it was under arch/$(SRCARCH). + +However, we package the scripts directory as linux-kbuild, which is +meant to be able to do support native and cross-builds. That means it +shouldn't contain files for a specific target architecture without a +wrapper to select between them, and it doesn't appear that linker +scripts are powerful enough to implement such a wrapper. + +Building module.lds in a different location would require relatively +large changes. Moving it in the package build rules can work, but we +need to support custom kernel builds from the same source so we can't +assume it's moved. + +Therefore, we move module.lds under the arch build directory in +rules.real and change Makefile.modfinal to look for it in both places. + +--- +Index: linux/scripts/Makefile.modfinal +=================================================================== +--- linux.orig/scripts/Makefile.modfinal ++++ linux/scripts/Makefile.modfinal +@@ -29,12 +29,13 @@ quiet_cmd_cc_o_c = CC [M] $@ + $(call if_changed_dep,cc_o_c) + + ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink) ++ARCH_MODULE_LDS := $(word 1,$(wildcard scripts/module.lds arch/$(SRCARCH)/module.lds)) + + quiet_cmd_ld_ko_o = LD [M] $@ + cmd_ld_ko_o += \ + $(LD) -r $(KBUILD_LDFLAGS) \ + $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \ +- -T scripts/module.lds -o $@ $(filter %.o, $^); \ ++ -T $(ARCH_MODULE_LDS) -o $@ $(filter %.o, $^); \ + $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) + + quiet_cmd_btf_ko = BTF [M] $@ +@@ -57,7 +58,7 @@ if_changed_except = $(if $(call newer_pr + printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:) + + # Re-generate module BTFs if either module's .ko or vmlinux changed +-$(modules): %.ko: %.o %.mod.o scripts/module.lds $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),vmlinux) FORCE ++$(modules): %.ko: %.o %.mod.o $(ARCH_MODULE_LDS) $(and $(CONFIG_DEBUG_INFO_BTF_MODULES),$(KBUILD_BUILTIN),vmlinux) FORCE + +$(call if_changed_except,ld_ko_o,vmlinux) + ifdef CONFIG_DEBUG_INFO_BTF_MODULES + +$(if $(newer-prereqs),$(call cmd,btf_ko)) |