linux.git/arch/arc/Makefile, branch v3.18.72

ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame)

2016-07-12T12:47:15+00:00

[ Upstream commit f52e126cc7476196f44f3c313b7d9f0699a881fc ]

With recent binutils update to support dwarf CFI pseudo-ops in gas, we
now get .eh_frame vs. .debug_frame. Although the call frame info is
exactly the same in both, the CIE differs, which the current kernel
unwinder can't cope with.

This broke both the kernel unwinder as well as loadable modules (latter
because of a new unhandled relo R_ARC_32_PCREL from .rela.eh_frame in
the module loader)

The ideal solution would be to switch unwinder to .eh_frame.
For now however we can make do by just ensureing .debug_frame is
generated by removing -fasynchronous-unwind-tables

 .eh_frame    generated with -gdwarf-2 -fasynchronous-unwind-tables
 .debug_frame generated with -gdwarf-2

Fixes STAR 9001058196

Cc: stable@vger.kernel.org
Signed-off-by: Vineet Gupta 
Signed-off-by: Sasha Levin

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

ARC: Boot #2: Verbose Boot reporting / feature verification

2013-02-15T17:46:07+00:00

Signed-off-by: Vineet Gupta