linux-toradex.git/arch/arc/Makefile, branch v4.1.5

ARC: Override toplevel default -O2 with -O3

2015-08-10T19:21:52+00:00

commit 97709069214eb75312c14946803b9da4d3814203 upstream.

ARC kernels have historically been built with -O3, despite top level
Makefile defaulting to -O2. This was facilitated by implicitly ordering
of arch makefile include AFTER top level assigned -O2.

An upstream fix to top level a1c48bb160f ("Makefile: Fix unrecognized
cross-compiler command line options") changed the ordering, making ARC
-O3 defunct.

Fix that by NOT relying on any ordering whatsoever and use the proper
arch override facility now present in kbuild (ARCH_*FLAGS)

Depends-on: ("kbuild: Allow arch Makefiles to override {cpp,ld,c}flags")
Suggested-by: Michal Marek 
Cc: Geert Uytterhoeven 
Signed-off-by: Vineet Gupta 
Signed-off-by: Greg Kroah-Hartman

ARC: rename default defconfig

2014-12-17T09:53:56+00:00

Signed-off-by: Vineet Gupta

ARC: remove gcc mpy heuristics

2014-10-13T09:16:17+00:00

Signed-off-by: Vineet Gupta

ARC: Adjustments for gcc 4.8

2013-06-27T09:05:32+00:00

* DWARF unwinder related
  + Force DWARF2 compliant .debug_frame (gcc 4.8 defaults to DWARF4
    which kernel unwinder can't grok).
  + Discard the additional .eh_frame generated
  + Discard the dwarf4 debug info generated by -gdwarf-2 for normal
    no debug case

* 4.8 already uses arc600 multilibs for -mno-mpy

* switch to using uclibc compiler (to get -mmedium-calls and -mno-sdata)
  and also since buildroot can only use 1 toolchain

Signed-off-by: Vineet Gupta

ARC: Use kconfig helper IS_ENABLED() to get rid of defines.h

2013-06-22T08:16:42+00:00

Signed-off-by: Vineet Gupta

ARC: [TB10x] Add support for TB10x platform

2013-05-07T08:13:59+00:00

Infrastructure required to make the Linux kernel compile and boot on the
Abilis Systems TB10x series of SOCs based on ARC700 CPUs:
  - Kmake related files (Kconfig, Makefile, tb10x_defconfig)
  - TB10x platform initialisation

Signed-off-by: Christian Ruppert 
Signed-off-by: Pierrick Hascoet 
Signed-off-by: Vineet Gupta

ARC: [build] Allow uncompressed uImage

2013-04-09T06:51:15+00:00

The existing uImage target always generates gzip compressed image which
drags bootup for some very slow FPGA customer boards.

So introduce seperate make targets:uImage.{bin,gz} with uncompressed
being default. Also tie gz generation to CONFIG_KERNEL_GZIP, which a
platform can select in it's Kconfig if it wishes gz to be default.

Signed-off-by: Vineet Gupta

ARC: [build] cleanup Makefile a bit

2013-04-09T06:51:15+00:00

Signed-off-by: Vineet Gupta

ARC: [build] silence make defconfig warnings with host gcc 4.7

2013-04-09T06:51:15+00:00

We do cross compiles for ARC Linux.
With gcc 4.7, a make defconfig spews out the following:

------------------->8--------------------------
make ARCH=arc defconfig
gcc: error: unrecognized command line option '-marc600'
gcc: error: unrecognized command line option '-mA7'
gcc: error: unrecognized command line option '-mno-sdata'
gcc: error: unrecognized command line option '-mno-mpy'
*** Default configuration is based on 'fpga_defconfig'
------------------->8--------------------------

This apparently is coming from LIBGCC line - which is strange to be
invoked for defconfig generation.

Reported-by: Alexey Brodkin 
Signed-off-by: Vineet Gupta

ARC: [Review] Multi-platform image #4: Isolate platform headers

2013-02-15T17:46:14+00:00

-Top level ARC makefile removes -I for platform headers
-asm/irq.h no longer includes plat/irq.h

-platform makefile adds -I for it's specfic platform headers
-platform code to directly include it's plat/irq.h

-Linker script needed plat/memmap.h for CCM info, already in .config

Signed-off-by: Vineet Gupta 
Cc: Arnd Bergmann 
Acked-by: Arnd Bergmann