Here is a patch that adds a new -T option to genksyms for generating dumps of
the type definition that makes up the symbol version hashes. This allows to
trace modversion changes back to what caused them. The dump format is the
name of the type defined, followed by its definition (which is almost C):
s#list_head struct list_head { s#list_head * next , * prev ; }
The s#, u#, e#, and t# prefixes stand for struct, union, enum, and typedef.
The exported symbols do not define types, and thus do not have an x# prefix:
nfs4_acl_get_whotype int nfs4_acl_get_whotype ( char * , t#u32 )
The symbol type defintion of a single file can be generated with:
make fs/jbd/journal.symtypes
If KBUILD_SYMTYPES is defined, all the *.symtypes of all object files that
export symbols are generated.
The single *.symtypes files can be combined into a single file after a kernel
build with a script like the following:
for f in $(find -name '*.symtypes' | sort); do
f=${f#./}
echo "/* ${f%.symtypes}.o */"
cat $f
echo
done \
| sed -e '\:UNKNOWN:d' \
-e 's:[,;] }:}:g' \
-e 's:\([[({]\) :\1:g' \
-e 's: \([])},;]\):\1:g' \
-e 's: $::' \
$f \
| awk '
/^.#/ { if (defined[$1] == $0) {
print $1
next
}
defined[$1] = $0
}
{ print }
'
When the kernel ABI changes, diffing individual *.symtype files, or the
combined files, against each other will show which symbol changes caused the
ABI changes. This can save a tremendous amount of time.
Dump the types that make up modversions
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
kconfig-fix-config-dependencies causes this:
make CC=cc KBUILD_VERBOSE=1 -C /usr/src/25 SUBDIRS=/home/akpm/NVIDIA-Linux-x86_64-1.0-8762-pkg2/usr/src/nv modules
make -f /usr/src/devel/Makefile silentoldconfig
make -f /usr/src/devel/Makefile silentoldconfig
make -f /usr/src/devel/Makefile silentoldconfig
The basic problem is if we compile external modules, config-targets isn't
set which can cause recursive calls to silentoldconfig to update the
kernel configuration.
Bail out and ask the user to update manually.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Add option for stripping modules while installing them.
This function adds support for stripping modules while they are being
installed. CONFIG_DEBUG_KERNEL (which will probably become more
popular as developers use kdump) causes the size of the installed
modules to grow by a factor of 9 or so.
Some kernel package systems solve this problem by stripping the debug
information from /lib/modules after running "make modules_install",
but that may not work for people who are installing directly into
/lib/modules --- root partitions that were sized to handle 16 megs
worth of modules may not be quite so happy with 145 megs of modules,
so the "make modules_install" never succeeds.
This patch allows such users to request modules_install to strip the
modules as they are installed.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
The following patch provides the ability to generate a report of
(1) All the exported symbols and their in-kernel-module usage count
(2) For each module, lists the modules and their exported symbols, on
which it depends.
the report can be generated by executing:
perl scripts/export_report
The tool warns if the modules are not build using MODVERSIONING.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
make failed to supply the filename when using make -rR and using $(*F)
to get target filename without extension.
This bug was not reproduceable in small scale but using:
$(basename $(notdir $@)) fixes it with same functionality.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Compare the working copy with the last commit, instead of the index.
Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Acked-by: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
adds revision suffix for untagged commits that are reachable from a tag
I'm bisecting and don't get the -g...... suffix. The reason is, that
git name-rev --tags HEAD
returns e.g.
HEAD tags/v2.6.17-rc1^0~1067
which is currently good enough for setlocalversion to skip the suffix.
This introduces a dependecy to grep -E, which should be fine.
Signed-off-by: Uwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Acked-By: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
read_dump didn't split lines between module name and export type.
Signed-off-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
kbuild does explicitly specify what to do in all cases, and each
time make's built-in rules & variables has been used it has been a bug.
So to speed up things and to avoid the hard-to-debug error situations
ignore the built-in definitions.
If any part of the kernel uses the built-in definitions the build will
just stop there and it should be trivial to fix.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
scripts/mod/modpost.c: In function `check_license':
scripts/mod/modpost.c:1094: parse error before `const'
scripts/mod/modpost.c:1095: `basename' undeclared (first use in this function)
scripts/mod/modpost.c:1095: (Each undeclared identifier is reported only once
scripts/mod/modpost.c:1095: for each function it appears in.)
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Modules that uses GPL symbols can no longer be build with kbuild,
the build will fail during the modpost step.
When a GPL-incompatible module uses a EXPORT_SYMBOL_GPL_FUTURE symbol
then warn during modpost so author are actually notified.
The actual license compatibility check is shared with the kernel
to make sure it is in sync.
Patch originally from: Andreas Gruenbacher <agruen@suse.de> and
Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This patch provides the ability to identify the export-type of each
exported symbols in Module.symvers.
NOTE: It updates the Module.symvers file with the additional
information as shown below.
0x0f8b92af platform_device_add_resources vmlinux EXPORT_SYMBOL_GPL
0xcf7efb2a ethtool_op_set_tx_csum vmlinux EXPORT_SYMBOL
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Avantika Mathur <mathur@us.ibm.com>
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
The binrpm-pkg target uses KERNELRELEASE when generated its .spec file.
When binrpm-pkg was the first build target run in a tree it generated the
.spec before kernel.release so the Version: tag in the .spec was empty.
I don't know if this is the best fix, but binrpm-pkg works when we
explicitly build kernel.release before descending into package-dir.
Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
If you set KCONFIG_OVERWRITECONFIG in environment, Kconfig will not break
symlinks when .config is a symlink to somewhere else.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
If the beginning Kconfig file is missing, config segfaults so it might as
well exit after the error message.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This removes all the leading whitespace kconfig now warns about.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Kconfig does its own indentation of menu prompts, so warn about and ignore
leading whitespace. Remove also a few unnecessary newlines after other
warning prints.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
If clicking on of the links, which leads to a visible prompt, jump to it in
the symbol list.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Extend the expression print helper function to allow customization of the
symbol output and use it to add links to the info window.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This allows to configure every symbol list and info window separately via a
popup menu, these settings are also separately saved and restored. Cleanup
the ConfigSettings class a bit to reduce the number of #ifdef.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Implement a simple search request for xconfig. Currently the capabilities are
rather simple (the same as menuconfig).
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This makes it possible to change two options which were hardcoded sofar.
1. Any symbol can now take the role of CONFIG_MODULES
2. The more useful option is to change the list of default file names,
which kconfig uses to load the base configuration if .config isn't
available.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This adds the general framework to the parser to define options for config
symbols with a syntax like:
config FOO
option bar[="arg"]
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This moves the .kernelrelease file into include/config directory. Remove its
generation from the config step, if the config step doesn't leave a proper
.config behind, it triggers a call to silentoldconfig. Instead its generation
can be done via proper dependencies.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Now that kconfig can load multiple configurations, it becomes simple to
integrate the split config step, by simply comparing the new .config file with
the old auto.conf (and then saving the new auto.conf). A nice side effect is
that this saves a bit of disk space and cache, as no data needs to be read
from or saved into the splitted config files anymore (e.g. include/config is
now 648KB instead of 5.2MB).
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Extend conf_read_simple() so it can load multiple configurations.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Extend struct symbol to allow storing multiple default values, which can be
used to hold multiple configurations.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
The SYMBOL_{YES,MOD,NO} are not really used anymore (they were more used be
the cml1 converter), so just remove them.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This fixes one of the worst kbuild warts left - the broken dependencies used
to check and regenerate the .config file. This was done via an indirect
dependency and the .config itself had an empty command, which can cause make
not to reread the changed .config file.
Instead of this we generate now a new file include/config/auto.conf from
.config, which is used for kbuild and has the proper dependencies. It's also
the main make target now for all files generated during this step (and thus
replaces include/linux/autoconf.h).
This also means we can now relax the syntax requirements for the .config file
and we don't have to rewrite it all the time, i.e. silentoldconfig only
writes .config now when it's necessary to keep it in sync with the Kconfig
files and even this can be suppressed by setting the environment variable
KCONFIG_NOSILENTUPDATE, so the update can (and must) be done manually.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
During loading special case the first common case (.config), be silent about
it and otherwise mark it as a change that requires saving. Instead output
that the file has been changed. IOW if conf does nothing (special), it's
silent.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Ignoring references to .init.text, .exit.text from the .plt section brought
the false positives down to two warnings for a defconfig build of ARCH=um
on x86_64.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Add ".smp_locks" section to whitelist as being safe from
init and exit sections.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
The default target for most powerpc platforms is zImage. The
zImage however is in arch/powerpc/boot and the mkspec script
was set up to get the kernel from the top level of the kernel
tree. This patch copies vmlinux to arch/powerpc/boot and then
copies the kernel to the tmp directory so the rpm can be made.
Signed-off-by: Mike Wolf <mjw@us.ibm.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
When Makefile.host is included, $(obj-dirs) is subjected to the
addprefix operation for the second time. Prefix only needs to be added
to the newly added directories, but not to those that came from
Makefile.lib.
This causes the build system to create unneeded empty directories in the
build tree when building in a separate directory. For instance,
lib/lib/zlib_inflate is created in the build tree.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[BRIDGE]: fix locking and memory leak in br_add_bridge
[IRDA]: Missing allocation result check in irlap_change_speed().
[PPPOE]: Missing result check in __pppoe_xmit().
[NET]: Eliminate unused /proc/sys/net/ethernet
[NETCONSOLE]: Clean up initcall warning.
[TCP]: Avoid skb_pull if possible when trimming head
There are several bugs in error handling in br_add_bridge:
- when dev_alloc_name fails, allocated net_device is not freed
- unregister_netdev is called when rtnl lock is held
- free_netdev is called before netdev_run_todo has a chance to be run after
unregistering net_device
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Move memory_present() in arch/mips/kernel/setup.c. When using sparsemem
extreme, this function does an allocate for bootmem. This would always
fail since init_bootmem hasn't been called yet.
Move memory_present after free_bootmem. This only marks actual memory
ranges as present instead of the entire address space.
Signed-off-by: Chad Reese <creese@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix following warnings:
linux/arch/mips/kernel/setup.c:432: warning: field width is not type int (arg 2)
linux/arch/mips/kernel/setup.c:432: warning: field width is not type int (arg 4)
linux/arch/mips/kernel/syscall.c:279: warning: unused variable `len'
linux/arch/mips/kernel/syscall.c:280: warning: unused variable `name'
linux/arch/mips/math-emu/dp_fint.c:32: warning: unused variable `xc'
linux/arch/mips/math-emu/dp_flong.c:32: warning: unused variable `xc'
linux/arch/mips/math-emu/sp_fint.c:32: warning: unused variable `xc'
linux/arch/mips/math-emu/sp_flong.c:32: warning: unused variable `xc'
(original patch by Atsushi, slight changes to the setup.c part by me.)
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix following warnings:
linux/arch/mips/kernel/setup.c:249:12: warning: constant 0xffffffff00000000 is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:209:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:227:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:283:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
linux/arch/mips/kernel/cpu-bugs64.c:299:10: warning: constant 0xffffffffffffdb9a is so big it is unsigned long
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fix the non-linear memory mapping done via remap_file_pages() -- it
didn't work on any MIPS CPU because the page offset clashing with
_PAGE_FILE and some other page protection bits which should have been left
zeros for this kind of pages.
Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
