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  1. 20 4月, 2016 1 次提交
  3. 09 12月, 2015 1 次提交
    • M
      genksyms: Handle string literals with spaces in reference files · a78f70e8
      由 Michal Marek 提交于 
      The reference files use spaces to separate tokens, however, we must
preserve spaces inside string literals. Currently the only case in the
tree is struct edac_raw_error_desc in <linux/edac.h>:

$ KBUILD_SYMTYPES=1 make -s drivers/edac/amd64_edac.symtypes
$ mv drivers/edac/amd64_edac.{symtypes,symref}
$ KBUILD_SYMTYPES=1 make -s drivers/edac/amd64_edac.symtypes
drivers/edac/amd64_edac.c:527: warning: amd64_get_dram_hole_info: modversion changed because of changes in struct edac_raw_error_desc
Signed-off-by: NMichal Marek <mmarek@suse.com>
      a78f70e8
  5. 20 3月, 2013 1 次提交
    • J
      genksyms: pass symbol-prefix instead of arch · d70f82ac
      由 James Hogan 提交于 
      Pass symbol-prefix to genksyms instead of arch, so that the decision
what symbol prefix to use is kept in one place.

Basically genksyms used to take a -a $ARCH argument and it used that to
determine whether to add an underscore symbol prefix. It's now changed
to take a -s $SYMBOL_PREFIX argument so that the caller decides whether
a symbol prefix is required. The build system then uses
CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX to determine whether to pass the
argument.
Signed-off-by: NJames Hogan <james.hogan@imgtec.com>
Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
      d70f82ac
  7. 03 3月, 2013 1 次提交
  9. 11 10月, 2011 1 次提交
    • M
      genksyms: Do not expand internal types · 2c5925d6
      由 Michal Marek 提交于 
      Consider structures, unions and enums defined in the source file as
internal and do not expand them. This way, changes to e.g. struct
serial_private in drivers/tty/serial/8250_pci.c will not affect the
checksum of the pciserial_* exports.
      2c5925d6
  11. 25 7月, 2011 1 次提交
    • J
      genksyms: Use same type in loop comparison · 1ae14703
      由 Jesper Juhl 提交于 
      The ARRAY_SIZE macro in scripts/genksyms/genksyms.c returns a value of
type size_t. That value is being compared to a variable of type int in
a loop in read_node(). Change the int variable to size_t type as well,
so we don't do signed vs unsigned type comparisons with all the
potential promotion/sign extension trouble that can cause (also
silences compiler warnings at high levels of warnings).
Signed-off-by: NJesper Juhl <jj@chaosbits.net>
Signed-off-by: NMichal Marek <mmarek@suse.cz>
      1ae14703
  13. 17 3月, 2011 4 次提交
  15. 02 2月, 2010 1 次提交
  17. 23 9月, 2009 1 次提交
  19. 15 1月, 2009 1 次提交
  21. 20 12月, 2008 1 次提交
    • J
      kbuild: strip generated symbols from *.ko · ad7a953c
      由 Jan Beulich 提交于 
      This patch changes the way __crc_ symbols are being resolved from
using ld to do so to using the assembler, thus allowing these symbols
to be marked local (the linker creates then as global ones) and hence
allow stripping (for modules) or ignoring (for vmlinux) them. While at
this, also strip other generated symbols during module installation.

One potentially debatable point is the handling of the flags passeed
to gcc when translating the intermediate assembly file into an object:
passing $(c_flags) unchanged doesn't work as gcc passes --gdwarf2 to
gas whenever is sees any -g* option, even for -g0, and despite the
fact that the compiler would have already produced all necessary debug
info in the C->assembly translation phase. I took the approach of just
filtering out all -g* options, but an alternative to such negative
filtering might be to have a positive filter which might, in the ideal
case allow just all the -Wa,* options to pass through.
Signed-off-by: NJan Beulich <jbeulich@novell.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      ad7a953c
  23. 04 12月, 2008 2 次提交
    • A
      genksyms: allow to ignore symbol checksum changes · 5dae9a55
      由 Andreas Gruenbacher 提交于 
      This adds an "override" keyword for use in *.symvers / *.symref files.
When a symbol is overridden, the symbol's old definition will be used for
computing checksums instead of the new one, preserving the previous
checksum.  (Genksyms will still warn about the change.)

This is meant to allow distributions to hide minor actual as well as fake
ABI changes.  (For example, when extra type information becomes available
because additional headers are included, this may change checksums even
though none of the types used have actully changed.)

This approach also allows to get rid of "#ifdef __GENKSYMS__" hacks in the
code, which are currently used in some vendor kernels to work around
checksum changes.
Signed-off-by: NAndreas Gruenbacher <agruen@suse.de>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      5dae9a55
    • A
      genksyms: track symbol checksum changes · 64e6c1e1
      由 Andreas Gruenbacher 提交于 
      Sometimes it is preferable to avoid changes of exported symbol checksums
(to avoid breaking externally provided modules).  When a checksum change
occurs, it can be hard to figure out what caused this change: underlying
types may have changed, or additional type information may simply have
become available at the point where a symbol is exported.

Add a new --reference option to genksyms which allows it to report why
checksums change, based on the type information dumps it creates with the
--dump-types flag.  Genksyms will read in such a dump from a previous run,
and report which symbols have changed (and why).

The behavior can be controlled for an entire build as follows: If
KBUILD_SYMTYPES is set, genksyms uses --dump-types to produce *.symtypes
dump files.  If any *.symref files exist, those will be used as the
reference to check against.  If KBUILD_PRESERVE is set, checksum changes
will fail the build.
Signed-off-by: NAndreas Gruenbacher <agruen@suse.de>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      64e6c1e1
  25. 01 8月, 2008 1 次提交
  27. 25 7月, 2008 1 次提交
  29. 29 1月, 2008 1 次提交
  31. 08 5月, 2007 1 次提交
  33. 25 6月, 2006 1 次提交
    • A
      kbuild: support for %.symtypes files · 15fde675
      由 Andreas Gruenbacher 提交于 
      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: NAndreas Gruenbacher <agruen@suse.de>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      15fde675
  35. 13 3月, 2006 3 次提交
  37. 09 3月, 2006 1 次提交
  39. 17 4月, 2005 1 次提交
    • L
      Linux-2.6.12-rc2 · 1da177e4
      由 Linus Torvalds 提交于 
      Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
      1da177e4