crosstool-ng: patches/gcc/4.2.4/280-eabi

config: add a 'auto' value for the number of parallel jobs

When CT_PARALLEL_JOBS is -1, set the number of parallel jobs to the
number of online CPUs + 1. Update documentation to match.

I find this useful when building in the cloud. You can use the same
.config file and have the build adapt to the number of processors
available. Limited testing shows that NCPUS+1 is faster than NCPUS+0
or NCPUS+2.

Signed-off-by: Michael Hope <michael.hope@linaro.org>

     1 diff -durN gcc-4.2.3.orig/gcc/config/arm/linux-eabi.h gcc-4.2.3/gcc/config/arm/linux-eabi.h

     2 --- gcc-4.2.3.orig/gcc/config/arm/linux-eabi.h	2007-09-01 17:28:30.000000000 +0200

     3 +++ gcc-4.2.3/gcc/config/arm/linux-eabi.h	2008-05-25 23:47:36.000000000 +0200

     4 @@ -47,7 +47,8 @@

     5  #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi

     7  #undef SUBTARGET_EXTRA_LINK_SPEC

     8 -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi"

     9 +#define SUBTARGET_EXTRA_LINK_SPEC	\

    10 +	" %{mlittle-endian:-m armelf_linux_eabi} %{mbig-endian:-m armelfb_linux_eabi}"

    12  /* Use ld-linux.so.3 so that it will be possible to run "classic"

    13     GNU/Linux binaries on an EABI system.  */

author	Michael Hope <michael.hope@linaro.org>
	Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695	f2495884ca3e
parent 687	b2b6b1d46aa1
permissions	-rw-r--r--