From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- scripts/Makefile.modpost | 155 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 155 insertions(+) create mode 100644 scripts/Makefile.modpost (limited to 'scripts/Makefile.modpost') diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost new file mode 100644 index 0000000000..739402f455 --- /dev/null +++ b/scripts/Makefile.modpost @@ -0,0 +1,155 @@ +# SPDX-License-Identifier: GPL-2.0 +# =========================================================================== +# Module versions +# =========================================================================== +# +# Stage one of module building created the following: +# a) The individual .o files used for the module +# b) A .o file which is the .o files above linked together +# c) A .mod file, listing the name of the preliminary .o file, +# plus all .o files +# d) modules.order, which lists all the modules + +# Stage 2 is handled by this file and does the following +# 1) Find all modules listed in modules.order +# 2) modpost is then used to +# 3) create one .mod.c file per module +# 4) create one Module.symvers file with CRC for all exported symbols + +# Step 3 is used to place certain information in the module's ELF +# section, including information such as: +# Version magic (see include/linux/vermagic.h for full details) +# - Kernel release +# - SMP is CONFIG_SMP +# - PREEMPT is CONFIG_PREEMPT[_RT] +# - GCC Version +# Module info +# - Module version (MODULE_VERSION) +# - Module alias'es (MODULE_ALIAS) +# - Module license (MODULE_LICENSE) +# - See include/linux/module.h for more details + +# Step 4 is solely used to allow module versioning in external modules, +# where the CRC of each module is retrieved from the Module.symvers file. + +PHONY := __modpost +__modpost: + +include include/config/auto.conf +include $(srctree)/scripts/Kbuild.include + +MODPOST = scripts/mod/modpost + +modpost-args = \ + $(if $(CONFIG_MODULES),-M) \ + $(if $(CONFIG_MODVERSIONS),-m) \ + $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \ + $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \ + $(if $(KBUILD_MODPOST_WARN),-w) \ + $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \ + $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \ + $(if $(findstring 1, $(KBUILD_EXTRA_WARN)),-W) \ + -o $@ + +modpost-deps := $(MODPOST) + +# 'make -i -k' ignores compile errors, and builds as many modules as possible. +ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),) +modpost-args += -n +endif + +# Read out modules.order to pass in modpost. +# Otherwise, allmodconfig would fail with "Argument list too long". +ifdef KBUILD_MODULES +modpost-args += -T $(MODORDER) +modpost-deps += $(MODORDER) +endif + +ifeq ($(KBUILD_EXTMOD),) + +# Generate the list of in-tree objects in vmlinux +# --------------------------------------------------------------------------- + +# This is used to retrieve symbol versions generated by genksyms. +ifdef CONFIG_MODVERSIONS +vmlinux.symvers Module.symvers: .vmlinux.objs +endif + +# Ignore libgcc.a +# Some architectures do '$(CC) --print-libgcc-file-name' to borrow libgcc.a +# from the toolchain, but there is no EXPORT_SYMBOL in it. + +quiet_cmd_vmlinux_objs = GEN $@ + cmd_vmlinux_objs = \ + for f in $(real-prereqs); do \ + case $${f} in \ + *libgcc.a) ;; \ + *) $(AR) t $${f} ;; \ + esac \ + done > $@ + +targets += .vmlinux.objs +.vmlinux.objs: vmlinux.a $(KBUILD_VMLINUX_LIBS) FORCE + $(call if_changed,vmlinux_objs) + +ifdef CONFIG_TRIM_UNUSED_KSYMS +ksym-wl := $(CONFIG_UNUSED_KSYMS_WHITELIST) +ksym-wl := $(if $(filter-out /%, $(ksym-wl)),$(srctree)/)$(ksym-wl) +modpost-args += -t $(addprefix -u , $(ksym-wl)) +modpost-deps += $(ksym-wl) +endif + +ifeq ($(wildcard vmlinux.o),) +missing-input := vmlinux.o +output-symdump := modules-only.symvers +else +modpost-args += vmlinux.o +modpost-deps += vmlinux.o +output-symdump := $(if $(KBUILD_MODULES), Module.symvers, vmlinux.symvers) +endif + +else + +# set src + obj - they may be used in the modules's Makefile +obj := $(KBUILD_EXTMOD) +src := $(obj) + +# Include the module's Makefile to find KBUILD_EXTRA_SYMBOLS +include $(kbuild-file) + +output-symdump := $(KBUILD_EXTMOD)/Module.symvers + +ifeq ($(wildcard Module.symvers),) +missing-input := Module.symvers +else +modpost-args += -i Module.symvers +modpost-deps += Module.symvers +endif + +modpost-args += -e $(addprefix -i , $(KBUILD_EXTRA_SYMBOLS)) + +endif # ($(KBUILD_EXTMOD),) + +quiet_cmd_modpost = MODPOST $@ + cmd_modpost = \ + $(if $(missing-input), \ + echo >&2 "WARNING: $(missing-input) is missing."; \ + echo >&2 " Modules may not have dependencies or modversions."; \ + echo >&2 " You may get many unresolved symbol errors."; \ + echo >&2 " You can set KBUILD_MODPOST_WARN=1 to turn errors into warning"; \ + echo >&2 " if you want to proceed at your own risk.";) \ + $(MODPOST) $(modpost-args) + +targets += $(output-symdump) +$(output-symdump): $(modpost-deps) FORCE + $(call if_changed,modpost) + +__modpost: $(output-symdump) +PHONY += FORCE +FORCE: + +existing-targets := $(wildcard $(sort $(targets))) + +-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd) + +.PHONY: $(PHONY) -- cgit v1.2.3