linux-toradex.git/scripts/mod/modpost.h, branch v2.6.23.12

kbuild: make better section mismatch reports on i386 and mips

2007-07-16T19:48:49+00:00

On i386 and MIPS, warn_sec_mismatch() sometimes fails to show
usefull symbol name.  This is because empty 'refsym' due to 0 r_addend
value.  This patch is to adjust r_addend value, consulting with
apply_relocate() routine in kernel code.

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

Revert "kbuild: make better section mismatch reports on i386, arm and mips"

2007-05-22T01:41:17+00:00

This reverts commit f892b7d480eec809a5dfbd6e65742b3f3155e50e, which
totally broke the build on x86 with CONFIG_RELOCATABLE (which, as far as
I can tell, is the only case where it should even matter!) due to a
SIGSEGV in modpost.

Cc: Sam Ravnborg 
Cc: Atsushi Nemoto 
Signed-off-by: Linus Torvalds

kbuild: make better section mismatch reports on i386, arm and mips

2007-05-19T07:11:57+00:00

On i386, ARM and MIPS, warn_sec_mismatch() sometimes fails to show
usefull symbol name.  This is because empty 'refsym' due to 0 r_addend
value.  This patch is to adjust r_addend value, consulting with
apply_relocate() routine in kernel code.

Without this patch:
  MODPOST vmlinux
WARNING: init/built-in.o - Section mismatch: reference to .init.text: from .text between 'rest_init' (at offset 0xf4) and 'try_name'
WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from .text between 'kmem_cache_create' (at offset 0x18a39) and 'cache_reap'
WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from .text between 'kmem_cache_create' (at offset 0x18a6b) and 'cache_reap'

With this patch:
  MODPOST vmlinux
WARNING: mm/built-in.o - Section mismatch: reference to .init.text:set_up_list3s from .text between 'kmem_cache_create' (at offset 0x18a39) and 'cache_reap'
WARNING: mm/built-in.o - Section mismatch: reference to .init.text:set_up_list3s from .text between 'kmem_cache_create' (at offset 0x18a6b) and 'cache_reap'

Now modpost can detect "kernel_init" name (and whitelist it) and show
"set_up_list3s" name.

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

kbuild: distinguish between errors and warnings in modpost

2007-05-02T18:58:08+00:00

Some of modpost's warnings are fatal, and some are not.  Adopt the
compiler distinction between errors and warnings by calling merror()
for fatal diagnostics and warn() for non-fatal ones.
merror() was used as replacemtn for error() to avoid clash with glibc

Signed-off-by: Matthew Wilcox 
Signed-off-by: Sam Ravnborg

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