build-linux: --no-modules-install

README.adoc

@@ -539,8 +539,7 @@ You have to checkout to the latest tag to ensure that the scripts match the rele
 Be saner and use our custom built QEMU instead:
 
 ....
-git submodule update --init --recursive "$(./getvar qemu_source_dir)"
+./build --download-dependencies qemu
-./build-qemu
 ./run
 ....
 
@@ -549,7 +548,8 @@ This also allows you to <<your-first-qemu-hack,modify QEMU>> if you're into that
 To build the kernel modules as in <<your-first-kernel-module-hack>> do:
 
 ....
-./build-linux -- modules_prepare
+git submodule update --depth 1 --init --recursive "$(./getvar linux_source_dir)"
+./build-linux --no-modules-install -- modules_prepare
 ./build-modules
 ./run
 ....
@@ -561,6 +561,7 @@ This command automatically falls back to the Ubuntu packaged GCC since you don't
 To modify the Linux kernel, build and use it as usual:
 
 ....
+git submodule update --depth 1 --init --recursive "$(./getvar linux_source_dir)"
 ./build-linux
 ./run
 ....

build

@@ -246,7 +246,7 @@ so looping over all of them would waste time.
                 **gem5_deps
             ),
             'linux': _Component(
-                self._build_file('build-linux', gem5_build_type='fast'),
+                self._build_file('build-linux'),
                 dependencies={'buildroot'},
                 submodules_shallow={'linux'},
                 apt_get_pkgs={

build-linux

@@ -26,6 +26,12 @@ configs. Takes precedence over any config files.
             help='''\
 Also use the given kernel configuration fragment file.
 Pass multiple times to use multiple fragment files.
+'''
+        )
+        self.add_argument(
+            '--config-only', default=False,
+            help='''\
+Configure the kernel, but don't build it.
 '''
         )
         self.add_argument(
@@ -44,9 +50,9 @@ Ignore --custom-config-file.
 '''
         )
         self.add_argument(
-            '--config-only', default=False,
+            '--modules-install', default=True,
             help='''\
-Configure the kernel, but don't build it.
+Run `make modules_install` after `make`.
 '''
         )
         self.add_argument(
@@ -138,6 +144,7 @@ Configure the kernel, but don't build it.
                 },
                 **common_args
             )
+            if self.env['modules_install']:
                 self.sh.run_cmd(
                     (
                         common_make_args +