diff options
Diffstat (limited to 'src/VBox/Installer/linux/Makefile-footer.gmk')
| -rw-r--r-- | src/VBox/Installer/linux/Makefile-footer.gmk | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/VBox/Installer/linux/Makefile-footer.gmk b/src/VBox/Installer/linux/Makefile-footer.gmk new file mode 100644 index 00000000..1d0f75c0 --- /dev/null +++ b/src/VBox/Installer/linux/Makefile-footer.gmk @@ -0,0 +1,145 @@ +# $Id: Makefile-footer.gmk $ +## @file +# VirtualBox Guest Additions kernel module Makefile, common parts. +# +# See Makefile-header.gmk for details of how to use this. +# + +# +# Copyright (C) 2006-2022 Oracle and/or its affiliates. +# +# This file is part of VirtualBox base platform packages, as +# available from https://www.virtualbox.org. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation, in version 3 of the +# License. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, see <https://www.gnu.org/licenses>. +# +# SPDX-License-Identifier: GPL-3.0-only +# + +VBOXMOD_0_TARGET = $(VBOXMOD_NAME) + +KBUILD_VERBOSE ?= 1 # Variable belongs to our kBuild, not the linux one. +VBOX_LNX_VERBOSE = $(if $(KBUILD_VERBOSE),1,) + +# +# Compiler options +# +VBOXMOD_0_KFLAGS := -D__KERNEL__ -DMODULE -DRT_WITHOUT_PRAGMA_ONCE $(addprefix -D,$(VBOXMOD_DEFS)) +ifeq ($(VBOX_KBUILD_TARGET_ARCH),amd64) +VBOXMOD_0_KFLAGS += -DRT_ARCH_AMD64 +else +VBOXMOD_0_KFLAGS += -DRT_ARCH_X86 +endif + +ifeq ($(VBOX_KBUILD_TYPE),debug) +# The -Wno-array-bounds is because of a bug in gcc 4.something, see +# https://sourceware.org/bugzilla/show_bug.cgi?id=10001 + VBOXMOD_0_KFLAGS += -DDEBUG -DDEBUG_$(subst $(subst _, ,_),_,$(USERNAME)) -DDEBUG_USERNAME=$(subst $(subst _, ,_),_,$(USERNAME)) + ifeq ($(shell expr $(KERN_VER) : '[23]\.'),0) + VBOXMOD_0_KFLAGS += -Werror -Wall -Wno-array-bounds +# clang objects to calls to __builtin_frame_address with a non-zero argument +# on general principles in -Wall mode. The x86 linux kernel has two such calls +# in the thread_info.h / arch_within_stack_frames(), though probably safe. + ifndef ($(LLVM),) # (This is how the Linux root Makefile (since 5.7) does the test.) + VBOXMOD_0_KFLAGS += -Wno-frame-address + endif + endif +endif + +ifeq ($(VBOX_KERN_GROKS_EXTMOD),) +# +# Pre 2.6.6 +# +# Note: While pre 2.6.6 kernels could also do "proper" builds from kbuild, the +# make script needed to support it was somewhat different from 2.6. Since this +# script works and pre-2.6.6 is not a moving target we will not try do do things +# the "proper" way. +# +VBOXMOD_EXT := o + + ifeq ($(VBOX_KBUILD_TARGET_ARCH),amd64) +VBOXMOD_0_KFLAGS += -mcmodel=kernel + endif + ifeq ($(KERN_VERSION),24) +VBOXMOD_0_KFLAGS += -DVBOX_LINUX_2_4 + endif + +CFLAGS := -O2 $(VBOXMOD_CFLAGS) $(addprefix -I,$(KERN_INCL) $(VBOXMOD_INCL)) $(VBOXMOD_0_KFLAGS) $(KDEBUG) + +# 2.4 Module linking +$(VBOXMOD_0_TARGET).$(VBOXMOD_EXT): $(VBOXMOD_OBJS) + $(LD) -o $@ -r $(VBOXMOD_OBJS) + +all: $(VBOXMOD_0_TARGET) +$(VBOXMOD_0_TARGET): $(VBOXMOD_0_TARGET).$(VBOXMOD_EXT) + +install: $(VBOXMOD_0_TARGET) + @mkdir -p $(MODULE_DIR); \ + install -m 0644 -o root -g root $(VBOXMOD_0_TARGET).$(VBOXMOD_EXT) $(MODULE_DIR); \ + PATH="$(PATH):/bin:/sbin" depmod -a; sync + +clean: + for f in $(sort $(dir $(VBOXMOD_OBJS))); do rm -f $$f/*.o $$f/.*.cmd $$f/.*.flags; done + rm -rf .$(VBOXMOD_NAME)* .tmp_ver* $(VBOXMOD_NAME).* Modules.symvers modules.order + +.PHONY: all $(VBOXMOD_0_TARGET) install clean + +else # VBOX_KERN_GROKS_EXTMOD +# +# 2.6.6 and later +# +VBOXMOD_EXT := ko + +# build defs +EXTRA_CFLAGS += $(VBOXMOD_CFLAGS) $(addprefix -I,$(KERN_INCL) $(VBOXMOD_INCL)) $(VBOXMOD_0_KFLAGS) $(KDEBUG) +$(VBOXMOD_0_TARGET)-y := $(VBOXMOD_OBJS) +obj-m += $(VBOXMOD_0_TARGET).o + +# Trigger parallel make job. + ifndef VBOX_NOJOBS +JOBS := $(shell (getconf _NPROCESSORS_ONLN || grep -Ec '^processor|^CPU[0-9]' /proc/cpuinfo) 2>/dev/null) + ifeq ($(JOBS),0) + override JOBS := 1 + endif + else +JOBS := + endif + +VBOX_SUBDIR_VAR=$(if $(VBOX_KERN_GROKS_SUBDIRS),SUBDIRS,M) + +# OL/UEK: CONFIG_MODULE_SIG= disables module signing for external modules. +# Ubuntu 18.04.3: CONFIG_MODULE_SIG_ALL= disables signing of all modules. +# We disable signing because we don't have any private key and want to leave +# the key handling and secure boot config to the user. + ifndef VBOX_ALLOW_MODULE_SIGNING +VBOX_DISABLE_SIGN=CONFIG_MODULE_SIG= CONFIG_MODULE_SIG_ALL= + endif + +# rules: +all: $(VBOXMOD_0_TARGET) + +$(VBOXMOD_0_TARGET): + $(MAKE) V=$(VBOX_LNX_VERBOSE) $(VBOX_DISABLE_SIGN) -C $(KERN_DIR) $(VBOX_SUBDIR_VAR)=$(CURDIR) SRCROOT=$(CURDIR) $(if $(JOBS),-j$(JOBS),) modules + +install: $(VBOXMOD_0_TARGET) + $(MAKE) V=$(VBOX_LNX_VERBOSE) $(VBOX_DISABLE_SIGN) -C $(KERN_DIR) $(VBOX_SUBDIR_VAR)=$(CURDIR) SRCROOT=$(CURDIR) INSTALL_MOD_PATH=$(INSTALL_MOD_PATH) INSTALL_MOD_DIR=$(INSTALL_MOD_DIR) modules_install + +modules_install: install + +clean: + $(MAKE) V=$(VBOX_LNX_VERBOSE) $(VBOX_DISABLE_SIGN) -C $(KERN_DIR) $(VBOX_SUBDIR_VAR)=$(CURDIR) SRCROOT=$(CURDIR) clean + +.PHONY: all $(VBOXMOD_0_TARGET) install modules_install clean +endif # VBOX_KERN_GROKS_EXTMOD + |