patches/binutils/2.20.1a/200-document-new-dtags-behaviour.patch
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:40:42 2011 +1300 (2011-09-29)
changeset 2695 f2495884ca3e
parent 2088 4f21ba5f8e91
permissions -rw-r--r--
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>
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Index: binutils-2.19.51.0.5/ld/ld.texinfo
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===================================================================
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diff -durN binutils-2.20.1.orig/ld/ld.texinfo binutils-2.20.1/ld/ld.texinfo
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--- binutils-2.20.1.orig/ld/ld.texinfo	2009-07-06 15:48:51.000000000 +0200
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+++ binutils-2.20.1/ld/ld.texinfo	2010-08-17 19:32:16.000000000 +0200
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@@ -2026,8 +2026,9 @@
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 systems may not understand them. If you specify
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 @option{--enable-new-dtags}, the dynamic tags will be created as needed.
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 If you specify @option{--disable-new-dtags}, no new dynamic tags will be
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-created. By default, the new dynamic tags are not created. Note that
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-those options are only available for ELF systems.
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+created. On Gentoo, by default, the new dynamic tags are created (this
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+differs from upstream behaviour). Note that those options are only
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+available for ELF systems.
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 @kindex --hash-size=@var{number}
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 @item --hash-size=@var{number}