linux-toradex.git/arch/parisc/Makefile, branch v3.17

parisc: Only use -mfast-indirect-calls option for 32-bit kernel builds

2014-09-23T19:38:26+00:00

In spite of what the GCC manual says, the -mfast-indirect-calls has
never been supported in the 64-bit parisc compiler. Indirect calls have
always been done using function descriptors irrespective of the
-mfast-indirect-calls option.

Recently, it was noticed that a function descriptor was always requested
when the -mfast-indirect-calls option was specified. This caused
problems when the option was used in  application code and doesn't make
any sense because the whole point of the option is to avoid using a
function descriptor for indirect calls.

Fixing this broke 64-bit kernel builds.

I will fix GCC but for now we need the attached change. This results in
the same kernel code as before.

Signed-off-by: John David Anglin 
Cc: stable@vger.kernel.org  # v3.0+
Signed-off-by: Helge Deller

parisc: make "make install" not depend on vmlinux

2013-11-07T21:28:06+00:00

Install targets (install, zinstall, uinstall) on parisc have a
dependency to vmlinux. This may cause parts of the kernel to be rebuilt
during installation. We must avoid this since this may run as root.
Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:

http://lkml.org/lkml/2013/7/10/600

So on parisc and maybe other archs we need the same as for x86:

1648e4f8 x86, kbuild: make "make install" not depend on vmlinux

This parisc patch was inspired by:

19514fc6 arm, kbuild: make "make install" not depend on vmlinux

Signed-off-by: Helge Deller

parisc: switch to gzip-compressed vmlinuz kernel

2013-07-09T20:09:20+00:00

The latest PA-RISC Boot Loader (palo) allows loading of gzip compressed
vmlinuz kernels. So let's now switch to build a vmlinuz file when we
build a palo boot image.

PALO version 1.9 (or higher) is required for this which is available at
git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git

Signed-off-by: Helge Deller 
Cc:  # 3.10

parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"

2013-06-01T12:28:47+00:00

There's a Makefile line setting cflags for CONFIG_PA7100. But that
Kconfig macro doesn't exist. There is a Kconfig symbol PA7000, which
covers both PA7000 and PA7100 processors. So let's use the corresponding
Kconfig macro.

Signed-off-by: Paul Bolle 
Signed-off-by: Helge Deller

parisc: make default cross compiler search more robust (v3)

2013-05-13T20:11:57+00:00

People/distros vary how they prefix the toolchain name for 64bit builds.
Rather than enforce one convention over another, add a for loop which
does a search for all the general prefixes.

For 64bit builds, we now search for (in order):
	hppa64-unknown-linux-gnu
	hppa64-linux-gnu
	hppa64-linux

For 32bit builds, we look for:
	hppa-unknown-linux-gnu
	hppa-linux-gnu
	hppa-linux
	hppa2.0-unknown-linux-gnu
	hppa2.0-linux-gnu
	hppa2.0-linux
	hppa1.1-unknown-linux-gnu
	hppa1.1-linux-gnu
	hppa1.1-linux

This patch was initiated by Mike Frysinger, with feedback from Jeroen
Roovers, John David Anglin and Helge Deller.

Signed-off-by: Mike Frysinger 
Signed-off-by: Jeroen Roovers 
Signed-off-by: John David Anglin 
Signed-off-by: Helge Deller

parisc: fix NATIVE set up in build

2013-05-06T21:09:33+00:00

The ifeq operator does not accept globs, so this little bit of code will
never match (unless uname literally prints out "parsic*").  Rewrite to
use a pattern matching operator so that NATIVE is set to 1 on parisc.

Signed-off-by: Mike Frysinger 
Signed-off-by: Helge Deller

parisc: disable -mlong-calls compiler option for kernel modules

2013-04-25T20:36:50+00:00

CONFIG_MLONGCALLS was introduced in commit
ec758f98328da3eb933a25dc7a2eed01ef44d849 to overcome linker issues when linking
huge linux kernels, e.g. with many modules linked in.

But in the kernel module loader there is no support yet for the new relocation
types, which is why modules built with -mlong-calls can't be loaded.
Furthermore, for modules long calls are not really necessary, since we already
use stub sections which resolve long distance calls.

So, let's just disable this compiler option when compiling kernel modules.

Signed-off-by: Helge Deller

parisc: do not install modules when installing kernel

2013-03-02T19:04:21+00:00

PA-RISC is the only arch that installs the modules when installing the kernel.

Signed-off-by: Rolf Eike Beer 
Signed-off-by: Helge Deller

parisc: add CONFIG_MLONGCALLS option to enable linkage of huge vmlinux executables

2013-02-20T21:46:57+00:00

When building a 64bit kernel which includes all necessary drivers and
filesystems the vmlinux kernel often gets so huge, that the linker won't
be able to resolve the branch stubs. This patch overcomes this limit by
providing an option to compile the kernel with the -mlong-calls compiler
option.

Signed-off-by: Helge Deller

parisc: enhance automatic CONFIG_CROSS_COMPILE detection

2013-02-20T21:46:06+00:00

The current Makefile will only choose the hppa64 cross compiler when
running natively on hppa in a 32bit userspace.
This patch additionally chooses the correct 32/64 bit hppa compiler even
when doing real cross compiling to hppa/hppa64 from another architecture.

Signed-off-by: Helge Deller