litmus-rt.git/scripts/Makefile.modpost, branch v2.6.26-rc2

kbuild: scripts/Makefile.modpost typo fix

2008-04-26T19:08:25+00:00

-EVIUSER  ;-)

Signed-off-by: Adrian Bunk 
Signed-off-by: Sam Ravnborg

kbuild: Add new Kbuild variable KBUILD_EXTRA_SYMBOLS

2008-04-25T18:45:26+00:00

This patch adds a new (Kbuild) Makefile variable KBUILD_EXTRA_SYMBOLS.
The space separated list of file names assigned to KBUILD_EXTRA_SYMBOLS
is used when calling scripts/mod/modpost during stage 2 of the Kbuild
process for non-kernel-tree modules.

Signed-off-by: Richard Hacker 
Signed-off-by: Sam Ravnborg

kbuild: soften modpost checks when doing cross builds

2008-03-23T20:38:54+00:00

The module alias support in the kernel have a consistency
check where it is checked that the size of a structure
in the kernel and on the build host are the same.
For cross builds this check does not make sense so detect
when we do cross builds and silently skip the check in these
situations.
This fixes a build bug for a wireless driver when cross building
for arm.

Acked-by: Michael Buesch 
Tested-by: Gordon Farquharson 
Signed-off-by: Sam Ravnborg 
Cc: stable@kernel.org

Linux Kernel Markers: create modpost file

2008-02-14T00:21:20+00:00

This adds some new magic in the MODPOST phase for CONFIG_MARKERS.  Analogous
to the Module.symvers file, the build will now write a Module.markers file
when CONFIG_MARKERS=y is set.  This file lists the name, defining module, and
format string of each marker, separated by \t characters.  This simple text
file can be used by offline build procedures for instrumentation code,
analogous to how System.map and Module.symvers can be useful to have for
kernels other than the one you are running right now.

The strings are made easy to extract by having the __trace_mark macro define
the name and format together in a single array called __mstrtab_* in the
__markers_strings section.  This is straightforward and reliable as long as
the marker structs are always defined by this macro.  It is an unreasonable
amount of hairy work to extract the string pointers from the __markers section
structs, which entails handling a relocation type for every machine under the
sun.

Mathieu :
- Ran through checkpatch.pl

Signed-off-by: Roland McGrath 
Signed-off-by: Mathieu Desnoyers 
Cc: David Smith 
Cc: Sam Ravnborg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kbuild: add verbose option to Section mismatch reporting in modpost

2008-01-28T22:21:18+00:00

If the config option CONFIG_SECTION_MISMATCH is not set and
we see a Section mismatch present the following to the user:

modpost: Found 1 section mismatch(es).
To see additional details select "Enable full Section mismatch analysis"
in the Kernel Hacking menu (CONFIG_SECTION_MISMATCH).

If the option CONFIG_SECTION_MISMATCH is selected
then be verbose in the Section mismatch reporting from mdopost.
Sample outputs:

WARNING: o-x86_64/vmlinux.o(.text+0x7396): Section mismatch in reference from the function discover_ebda() to the variable .init.data:ebda_addr
The function  discover_ebda() references
the variable __initdata ebda_addr.
This is often because discover_ebda lacks a __initdata
annotation or the annotation of ebda_addr is wrong.

WARNING: o-x86_64/vmlinux.o(.data+0x74d58): Section mismatch in reference from the variable pci_serial_quirks to the function .devexit.text:pci_plx9050_exit()
The variable pci_serial_quirks references
the function __devexit pci_plx9050_exit()
If the reference is valid then annotate the
variable with __exit* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

WARNING: o-x86_64/vmlinux.o(__ksymtab+0x630): Section mismatch in reference from the variable __ksymtab_arch_register_cpu to the function .cpuinit.text:arch_register_cpu()
The symbol arch_register_cpu is exported and annotated __cpuinit
Fix this by removing the __cpuinit annotation of arch_register_cpu or drop the export.

Signed-off-by: Sam Ravnborg

kbuild: use LDFLAGS_MODULE only for .ko links

2007-07-25T19:18:19+00:00

Sam Ravnborg pointed out that Documentation/kbuild/makefiles.txt already
says this is what it's for.  This patch makes the reality live up to the
documentation.  This fixes the problem of LDFLAGS_BUILD_ID getting into too
many places.

Signed-off-by: Roland McGrath 
Signed-off-by: Sam Ravnborg

kbuild: do not do section mismatch checks on vmlinux in 2nd pass

2007-07-25T19:14:15+00:00

We already check and warn about section mismatches from vmlinux
(build as vmlinux.o) during first pass so skip the checks
during the 2nd pass where we process modules.

Signed-off-by: Sam Ravnborg

kbuild: do section mismatch check on full vmlinux

2007-07-17T08:54:06+00:00

Previously we did do the check on the .o files used to link
vmlinux but that failed to find questionable references across
the .o files.
Create a dedicated vmlinux.o file used only for section mismatch checks
that uses the defualt linker script so section does not get renamed.

The vmlinux.o may later be used as part of the the final link of vmlinux
but for now it is used fo section mismatch only.
For a defconfig build this is instant but for an allyesconfig this
add two minutes to a full build (that anyways takes ~2 hours).

Signed-off-by: Sam Ravnborg

kbuild: fix section mismatch check for vmlinux

2007-05-02T18:58:07+00:00

vmlinux does not contain relocation entries which is
used by the section mismatch checks.
Reported by: Atsushi Nemoto 

Use the individual objects as inputs to overcome
this limitation.
In modpost check the .o files and skip non-ELF files.

Signed-off-by: Sam Ravnborg

[PATCH] kbuild: allow multi-word $M in Makefile.modpost

2006-10-17T15:18:48+00:00

Some people want to do crazy things like pass multiple directories as the
value of $(SUBDIRS) or $M.  Mostly this kinda works, except that
Makefile.modpost constructs a modpost commandline which fails modpost's
argument parsing.  This patch fixes that little wrinkle.

Signed-off-by: Greg Banks 
Cc: Sam Ravnborg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds