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ARC: Adjustments for gcc 4.8

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* 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 <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta
2013-05-25 14:03:25 +05:30
parent 05b016ecf5
commit 5a45da02cf
5 changed files with 35 additions and 19 deletions
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2
arch/arc/configs/tb10x_defconfig
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@@ -1,4 +1,4 @@
CONFIG_CROSS_COMPILE="arc-elf32-"
CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_DEFAULT_HOSTNAME="tb10x"
CONFIG_SYSVIPC=y