patches/binutils/2.17/170-bfd-hash-tweak.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Oct 14 17:42:10 2008 +0000 (2008-10-14)
changeset 929 7c958fb04f28
parent 56 07a6a48962b7
permissions -rw-r--r--
Sample config for e500v2 toolchain

On Tuesday 14 October 2008 17:05:31 Nate Case wrote:
> This is a sample config file for Freescale e500v2 processors (e.g.,
> MPC8548, MPC8572). It uses eglibc (for e500/SPE patches) and a recent
> gcc (4.3.1, for e500v2 DPFP support) and will generate appropriate
> dual-precision floating point instructions by default.
>
> Note: If building a Linux kernel with this toolchain, you will want to
> make sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE
> ABI/instructions from getting into the kernel (which is currently
> unsupported). At this time, the kernel build system only passes
> -mno-spe by default (this should be fixed soon hopefully).
>
> A binutils snapshot is used to fix a bug present in 2.18 preventing
> U-Boot from being compiled (CodeSourcery issue #2297: internal.h
> (ELF_IS_SECTION_IN_SEGMENT): Adjust to cope with segments at the end of
> memory).

Obsoletes the powerpc-unknown-linux-gnuspe sample, so remove it.

/trunk/samples/powerpc-e500v2-linux-gnuspe/crosstool.config | 307 307 0 0 +++++++++++++++++++
1 file changed, 307 insertions(+)
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Signed-off-by: dank@kegel.com
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Raising the size of the hash table is a noticable win when linking 
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at least one large app.  
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There was a patch,
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http://sources.redhat.com/ml/binutils/2004-06/msg00165.html
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to do this dynamically.  No idea why that didn't make it in.
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So this tiny change to raise the default size is just
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a stopgap for now.
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--- binutils-2.17/bfd/hash.c.old	2006-03-02 23:01:39.000000000 -0800
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+++ binutils-2.17/bfd/hash.c	2006-03-02 23:01:58.000000000 -0800
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@@ -298,7 +298,7 @@
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 */
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 /* The default number of entries to use when creating a hash table.  */
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-#define DEFAULT_SIZE 4051
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+#define DEFAULT_SIZE 32749
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 static size_t bfd_default_hash_table_size = DEFAULT_SIZE;
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 /* Create a new hash table, given a number of entries.  */