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Additional Makefile fixes for Solaris 2.8
On Solaris, 'head' doesn't take a -q argument. But we can use 'grep -h'
instead, so do that in Makefile.mod{inst,post}. The built-in test to
/bin/sh doesn't like 'if ! cmd' syntax, so when determining if we need
to do modversion stuff, invert the if/else cases. The built-in test
also doesn't understand -ef, so invoke a real version of test which does.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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Process modules in sorted order during modpost and modules install.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Consolidate rules for installing internal and external modules.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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From: Sam Ravnborg <sam@ravnborg.org>
When building external modules the $PWD/.tmp_versions directory is used.
The .tmp_versions directory in the kernel tree cannot be used because this
would clutter up the kernel tree especially when more than one external
module is being build for the same kernel tree.
This patch make sure to create $PWD/.tmp_versions, and to delete it during
make clean. It also removes warning about 'messed with SUBDIRS', this is
no longer relevant when .tmp_versions is made outside the kernel tree.
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From: Rusty Russell <rusty@au1.ibm.com>
The way it works is that the .mod file contains the name of the module (as
before), but succeeding lines are the constituent parts (assumed to be .c
files, which usually works: if they use MODULE_VERSION in a file for which
this isn't true we'll get a warning).
As we postprocess modules, we look in the .modinfo section for a
"version=", which is placed by the MODULE_VERSION() macro. This will be of
form "version=<macroarg>" "\0" [24 chars] "\0". The 24 chars are replaced
by the md4 sum of the .c files and any files they #include using '#include
"file"' which are found in the current directory. Whitespace is collapsed
outside strings, and comments are ignored for purposes of the sum.
The result is a .modinfo entry such as
version=1.16ac-rustytest B13E9451C4CA3B89577DEFF
At the kernel summit, various people asked for a MODULE_VERSION macro to
store module strings (for later access through sysfs). A simple md4 is
needed to identify changes in modules which, inevitably, do not update the
version. It skips whitespace and comments, and includes #includes which
are in the same dir.
The module versions should be set according to this definition, based on
the RPM one, or CVS Revision tags. Violators will be shot.
[<epoch>`:']<version>[`-'<extraversion>]
<epoch>: A (small) unsigned integer which allows you to start versions
anew. If not mentioned, it's zero. eg. "2:1.0" is after
"1:2.0".
<version>: The <version> may contain only alphanumerics.
<extraversion>: Like <version>, but inserted for local
customizations, eg "rh3" or "rusty1".
Comparison of two versions (assuming same epoch):
Split each into all-digit and all-alphabetical parts. Compare each one one
at a time: digit parts numerically, alphabetical in ASCII order. So 0.10
comes after 0.9.
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I fixed scripts/Makefile.modpost to handle CONFIG_MODULES but no modules
selected, but forgot scripts/Makefile.modinst
(pointed out by akpm)
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Since we rely on our list of all modules for building anyway, we
can as well use it to install the modules. So we don't need to
descend in that step anymore, speeding it up, though it's not
a particularly performance-critical area.
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module-init-tools 0.9 and newer supply a replacement depmod, so
it's safe to run again.
Also, some external programs like PCMCIA and mkinitrd really want the
directory hierarchy in /lib/modules back again: it makes no difference
to the tools (since 0.9), so revert it.
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This is an implementation of the in-kernel module loader extending
the try_inc_mod_count() primitive and making its use compulsory.
This has the benifit of simplicity, and similarity to the existing
scheme. To reduce the cost of the constant increments and
decrements, reference counters are lockless and per-cpu.
Eliminated (coming in following patches):
o Modversions
o Module parameters
o kallsyms
o EXPORT_SYMBOL_GPL and MODULE_LICENCE checks
o DEVICE_TABLE support.
New features:
o Typesafe symbol_get/symbol_put
o Single "insert this module" syscall interface allows trivial userspace.
o Raceless loading and unloading
You will need the trivial replacement module utilities from:
http://ozlabs.org/~rusty/module-init-tools-0.6.tar.gz
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Most definitions required were present in Makefile.lib, so delete the
definitions and include Makefile.lib.
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o Deleted subdir-n and subdir- handling in Makefile.build
o Deleted all host-progs related stuff in Makfile.modver
o In Makefile.modver also deleted everything related to composite objects
o Fixed an error when deleting a .ver file + .hdepend and then do make
- filter-out in Makefile.modver was faulty
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Use the same way we came up with for "make clean" for
"make modules_install", gaining a nice speed-up.
Also, some cosmetics for scripts/Makefile.clean
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Rules.make is used in 4 phases,
o generate modversions
o build
o install modules
o clean
split out the code specific to the phase and move it into
scripts/Makefile.<phase>
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