On Mon, Feb 06, 2023 at 01:18:34PM +0000, Emil Velikov wrote:
From: Emil Velikov <emil.velikov@xxxxxxxxxxxxx>
This option is equivalent to basedir, with the small difference being
that's where the meta-data files are generated. In other words, this
allows us to have read-only input modules and modules.dep, while still
being able to generate the meta-data files.
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Signed-off-by: Emil Velikov <emil.velikov@xxxxxxxxxxxxx>
---
Here's a handy feature behind the request at
https://github.com/kmod-project/kmod/issues/13
v2:
- alternative wording for manpage and help screen (thanks Lucas)
- add test case
NOTE: skipping the test (as well as some surrounding ones) seems
dubious, but it's added for consistency. Will send another series with
papercuts shortly, to drop that... if applicable that is :-)
---
man/depmod.xml | 20 ++++++++++
testsuite/populate-modules.sh | 3 ++
.../lib/modules/4.4.4/modules.alias | 37 +++++++++++++++++++
.../lib/modules/4.4.4/modules.builtin | 0
.../lib/modules/4.4.4/modules.order | 7 ++++
testsuite/test-depmod.c | 34 +++++++++++++++++
tools/depmod.c | 25 +++++++++++--
7 files changed, 123 insertions(+), 3 deletions(-)
create mode 100644 testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.alias
create mode 100644 testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.builtin
create mode 100644 testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.order
diff --git a/man/depmod.xml b/man/depmod.xml
index ea0be27..3b00971 100644
--- a/man/depmod.xml
+++ b/man/depmod.xml
@@ -45,6 +45,7 @@
<cmdsynopsis>
<command>depmod</command>
<arg><option>-b <replaceable>basedir</replaceable></option></arg>
+ <arg><option>-o <replaceable>outdir</replaceable></option></arg>
<arg><option>-e</option></arg>
<arg><option>-E <replaceable>Module.symvers</replaceable></option></arg>
<arg><option>-F <replaceable>System.map</replaceable></option></arg>
@@ -151,6 +152,25 @@
</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <option>-o <replaceable>outdir</replaceable></option>
+ </term>
+ <term>
+ <option>--outdir <replaceable>outdir</replaceable></option>
+ </term>
+ <listitem>
+ <para>
+ Set the output directory where depmod will store any generated file.
+ <replaceable>outdir</replaceable> serves as a root to that location,
+ similar to how <replaceable>basedir</replaceable> is used. Also this
+ setting takes precedence and if used together with
+ <replaceable>basedir</replaceable> it will result in the input being
+ that directory, but the output being the one set by
+ <replaceable>outdir</replaceable>.
+ </para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term>
<option>-C</option>
diff --git a/testsuite/populate-modules.sh b/testsuite/populate-modules.sh
index aa6d5c2..5009cac 100755
--- a/testsuite/populate-modules.sh
+++ b/testsuite/populate-modules.sh
@@ -61,6 +61,9 @@ map=(
["test-depmod/modules-order-compressed/lib/modules/4.4.4/kernel/drivers/block/cciss.ko"]="mod-fake-cciss.ko"
["test-depmod/modules-order-compressed/lib/modules/4.4.4/kernel/drivers/scsi/hpsa.ko"]="mod-fake-hpsa.ko"
["test-depmod/modules-order-compressed/lib/modules/4.4.4/kernel/drivers/scsi/scsi_mod.ko"]="mod-fake-scsi-mod.ko"
+ ["test-depmod/modules-outdir/lib/modules/4.4.4/kernel/drivers/block/cciss.ko"]="mod-fake-cciss.ko"
+ ["test-depmod/modules-outdir/lib/modules/4.4.4/kernel/drivers/scsi/hpsa.ko"]="mod-fake-hpsa.ko"
+ ["test-depmod/modules-outdir/lib/modules/4.4.4/kernel/drivers/scsi/scsi_mod.ko"]="mod-fake-scsi-mod.ko"
["test-modinfo/mod-simple-i386.ko"]="mod-simple-i386.ko"
["test-modinfo/mod-simple-x86_64.ko"]="mod-simple-x86_64.ko"
["test-modinfo/mod-simple-sparc64.ko"]="mod-simple-sparc64.ko"
diff --git a/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.alias b/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.alias
new file mode 100644
index 0000000..5675329
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.alias
@@ -0,0 +1,37 @@
+# Aliases extracted from modules themselves.
+alias pci:v0000103Cd00003230sv0000103Csd0000323Dbc*sc*i* cciss
+alias pci:v0000103Cd00003230sv0000103Csd00003237bc*sc*i* cciss
+alias pci:v0000103Cd00003238sv0000103Csd00003215bc*sc*i* cciss
+alias pci:v0000103Cd00003238sv0000103Csd00003214bc*sc*i* cciss
+alias pci:v0000103Cd00003238sv0000103Csd00003213bc*sc*i* cciss
+alias pci:v0000103Cd00003238sv0000103Csd00003212bc*sc*i* cciss
+alias pci:v0000103Cd00003238sv0000103Csd00003211bc*sc*i* cciss
+alias pci:v0000103Cd00003230sv0000103Csd00003235bc*sc*i* cciss
+alias pci:v0000103Cd00003230sv0000103Csd00003234bc*sc*i* cciss
+alias pci:v0000103Cd00003230sv0000103Csd00003223bc*sc*i* cciss
+alias pci:v0000103Cd00003220sv0000103Csd00003225bc*sc*i* cciss
+alias pci:v00000E11d00000046sv00000E11sd0000409Dbc*sc*i* cciss
+alias pci:v00000E11d00000046sv00000E11sd0000409Cbc*sc*i* cciss
+alias pci:v00000E11d00000046sv00000E11sd0000409Bbc*sc*i* cciss
+alias pci:v00000E11d00000046sv00000E11sd0000409Abc*sc*i* cciss
+alias pci:v00000E11d00000046sv00000E11sd00004091bc*sc*i* cciss
+alias pci:v00000E11d0000B178sv00000E11sd00004083bc*sc*i* cciss
+alias pci:v00000E11d0000B178sv00000E11sd00004082bc*sc*i* cciss
+alias pci:v00000E11d0000B178sv00000E11sd00004080bc*sc*i* cciss
+alias pci:v00000E11d0000B060sv00000E11sd00004070bc*sc*i* cciss
+alias pci:v0000103Cd*sv*sd*bc01sc04i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003356bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003355bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003354bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003353bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003352bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003351bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Bsv0000103Csd00003350bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd00003233bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd0000324Bbc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd0000324Abc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd00003249bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd00003247bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd00003245bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd00003243bc*sc*i* hpsa
+alias pci:v0000103Cd0000323Asv0000103Csd00003241bc*sc*i* hpsa
diff --git a/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.builtin b/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.builtin
new file mode 100644
index 0000000..e69de29
diff --git a/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.order b/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.order
new file mode 100644
index 0000000..4b64309
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.order
@@ -0,0 +1,7 @@
+#336
+kernel/drivers/block/cciss.ko
+#2094
+kernel/drivers/scsi/scsi_mod.ko
+#2137
+kernel/drivers/scsi/hpsa.ko
+
diff --git a/testsuite/test-depmod.c b/testsuite/test-depmod.c
index d7802d7..6465230 100644
--- a/testsuite/test-depmod.c
+++ b/testsuite/test-depmod.c
@@ -57,6 +57,40 @@ DEFINE_TEST(depmod_modules_order_for_compressed,
},
});
+#define MODULES_OUTDIR_UNAME "4.4.4"
+#define MODULES_OUTDIR_ROOTFS TESTSUITE_ROOTFS "test-depmod/modules-outdir"
+#define MODULES_OUTDIR_LIB_MODULES_OUTPUT MODULES_OUTDIR_ROOTFS "/outdir/lib/modules/" MODULES_OUTDIR_UNAME
+#define MODULES_OUTDIR_LIB_MODULES_INPUT MODULES_OUTDIR_ROOTFS "/lib/modules/" MODULES_OUTDIR_UNAME
+static noreturn int depmod_modules_outdir(const struct test *t)
+{
+ const char *progname = ABS_TOP_BUILDDIR "/tools/depmod";
+ const char *const args[] = {
+ progname,
+ "--outdir", MODULES_OUTDIR_ROOTFS "/outdir/",
+ NULL,
+ };
+
+ test_spawn_prog(progname, args);
+ exit(EXIT_FAILURE);
+}
+
+DEFINE_TEST(depmod_modules_outdir,
+#if defined(KMOD_SYSCONFDIR_NOT_ETC)
+ .skip = true,
+#endif
+ .description = "check if depmod honours the outdir option",
+ .config = {
+ [TC_UNAME_R] = MODULES_OUTDIR_UNAME,
+ [TC_ROOTFS] = MODULES_OUTDIR_ROOTFS,
+ },
+ .output = {
+ .files = (const struct keyval[]) {
+ { MODULES_OUTDIR_LIB_MODULES_OUTPUT "/modules.alias",
+ MODULES_OUTDIR_LIB_MODULES_INPUT "/modules.alias" },
I think this is a little bit weird because modules.alias is not really
used as input. It's always produced by depmod, i.e. an output I propose we do 2 things:
1) move the correct files we are using to compare to MODULES_OUTDIR_ROOTFS
2) also compare modules.dep, because we then ensure the outdirname is
being correctly stripped off the output.
I just gave this a try with the additional diff on top. If you agree, I
can squash in your commit before pushing.
$ ./testsuite/test-depmod depmod_modules_outdir
TESTSUITE: running depmod_modules_outdir, in forked context
depmod: WARNING: could not open modules.builtin.modinfo at /lib/modules/4.4.4: No such file or directory
TESTSUITE: 'depmod_modules_outdir' [56832] exited with return code 0
TESTSUITE: PASSED: depmod_modules_outdir
TESTSUITE: ------
--------8<-------
diff --git a/testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.alias b/testsuite/rootfs-pristine/test-depmod/modules-outdir/correct-modules.alias
similarity index 100%
rename from testsuite/rootfs-pristine/test-depmod/modules-outdir/lib/modules/4.4.4/modules.alias
rename to testsuite/rootfs-pristine/test-depmod/modules-outdir/correct-modules.alias
diff --git a/testsuite/rootfs-pristine/test-depmod/modules-outdir/correct-modules.dep b/testsuite/rootfs-pristine/test-depmod/modules-outdir/correct-modules.dep
new file mode 100644
index 0000000..ec50ac3
--- /dev/null
+++ b/testsuite/rootfs-pristine/test-depmod/modules-outdir/correct-modules.dep
@@ -0,0 +1,3 @@
+kernel/drivers/block/cciss.ko:
+kernel/drivers/scsi/scsi_mod.ko:
+kernel/drivers/scsi/hpsa.ko: kernel/drivers/scsi/scsi_mod.ko
diff --git a/testsuite/test-depmod.c b/testsuite/test-depmod.c
index 6465230..6e3ae56 100644
--- a/testsuite/test-depmod.c
+++ b/testsuite/test-depmod.c
@@ -85,8 +85,10 @@ DEFINE_TEST(depmod_modules_outdir,
},
.output = {
.files = (const struct keyval[]) {
+ { MODULES_OUTDIR_LIB_MODULES_OUTPUT "/modules.dep",
+ MODULES_OUTDIR_ROOTFS "/correct-modules.dep" },
{ MODULES_OUTDIR_LIB_MODULES_OUTPUT "/modules.alias",
- MODULES_OUTDIR_LIB_MODULES_INPUT "/modules.alias" },
+ MODULES_OUTDIR_ROOTFS "/correct-modules.alias" },
{ }
},
});
--------8<-------
thanks
Lucas De Marchi
