linux-toradex.git/scripts/mod/modpost.h, branch v2.6.19-rc4

kbuild: warn when a moduled uses a symbol marked UNUSED

2006-07-01T09:44:23+00:00

We now have infrastructure in place to mark an EXPORTed symbol
as unused. So the natural next step is to warn during buildtime when
a module uses a symbol marked UNUSED.

Signed-off-by: Sam Ravnborg

kbuild: check license compatibility when building modules

2006-06-09T19:53:55+00:00

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  and
Ram Pai 

Signed-off-by: Sam Ravnborg

kbuild: export-type enhancement to modpost.c

2006-06-09T18:33:10+00:00

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 
Signed-off-by: Ram Pai 
Signed-off-by: Avantika Mathur 
Signed-off-by: Valdis Kletnieks 
Signed-off-by: Andrew Morton 
Signed-off-by: Sam Ravnborg

[PATCH] kbuild: fix modpost segfault for 64bit mipsel kernel

2006-05-21T19:59:21+00:00

Here is an updated r_info layout fix.  Please apply "check SHT_REL
sections" patch before this.

64bit mips has different r_info layout.  This patch fixes modpost
segfault for 64bit little endian mips kernel.

Signed-off-by: Atsushi Nemoto 
Cc: Sam Ravnborg 
Cc: Ralf Baechle 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] kbuild: check SHT_REL sections

2006-05-21T19:59:21+00:00

I found that modpost can not detect section mismatch on mips and i386.  On
mips64, the modpost (with r_info layout fix) can detect it.  The current
modpst only checks SHT_RELA section but I suppose SHT_REL section should be
checked also.  This patch does not contain r_info layout fix.  I'll post an
updated r_info layout fix on next mail.

Check SHT_REL sections as like as SHT_RELA sections to detect section
mismatch.

Signed-off-by: Atsushi Nemoto 
Cc: Sam Ravnborg 
Cc: Ralf Baechle 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Revert "kbuild: fix modpost segfault for 64bit mipsel kernel"

2006-05-08T20:38:42+00:00

This reverts commit c8d8b837ebe4b4f11e1b0c4a2bdc358c697692ed, which
caused problems for the x86 build. Quoth Sam:

  "It was discussed on mips list but apparently the fix was bogus.  I
   will not have time to look into it so mips can carry this local fix
   until we get a proper fix in mainline."

Signed-off-by: Linus Torvalds

kbuild: fix modpost segfault for 64bit mipsel kernel

2006-04-30T21:36:48+00:00

64bit mips has different r_info layout.  This patch fixes modpost
segfault for 64bit little endian mips kernel.

Signed-off-by: Atsushi Nemoto 
Signed-off-by: Sam Ravnborg

kbuild: kill trailing whitespace in modpost & friends

2006-03-03T15:46:04+00:00

Signed-off-by: Sam Ravnborg

kbuild: check for section mismatch during modpost stage

2006-02-19T08:51:20+00:00

Section mismatch is identified as references to .init*
sections from non .init sections. And likewise references
to .exit.* sections outside .exit sections.

.init.* sections are discarded after a module is initialized
and references to .init.* sections are oops candidates.
.exit.* sections are discarded when a module is built-in and
thus references to .exit are also oops candidates.

The checks were possible to do using 'make buildcheck' which
called the two perl scripts: reference_discarded.pl and
reference_init.pl. This patch just moves the same functionality
inside modpost and the scripts are then obsoleted.
They will though be kept for a while so users can do double
checks - but note that some .o files are skipped by the perl scripts
so result is not 1:1.
All credit for the concept goes to Keith Owens who implemented
the original perl scrips - this patch just moves it to modpost.

Compared to the perl script the implmentation in modpost will be run
for each kernel build - thus catching the error much sooner, but
the downside is that the individual .o file are not always identified.

Signed-off-by: Sam Ravnborg

kbuild: use warn()/fatal() consistent in modpost

2006-02-19T08:51:17+00:00

modpost.c provides warn() and fatal() - so use them all over the place.

Signed-off-by: Sam Ravnborg