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(+)

Check LD_RUN_PATH length, copied from buildroot.

 binutils-2.18.50.0.6/ld/emultempl/elf32.em |    4     4     0     0 ++++

 1 file changed, 4 insertions(+)

diff -durN binutils-2.18.50.0.6.orig/ld/emultempl/elf32.em binutils-2.18.50.0.6/ld/emultempl/elf32.em

--- binutils-2.18.50.0.6.orig/ld/emultempl/elf32.em	2008-04-03 18:54:25.000000000 +0200

+++ binutils-2.18.50.0.6/ld/emultempl/elf32.em	2008-05-02 23:30:08.000000000 +0200

@@ -1220,6 +1220,8 @@

 	      && command_line.rpath == NULL)

 	    {

 	      lib_path = (const char *) getenv ("LD_RUN_PATH");

+	      if ((lib_path) && (strlen (lib_path) == 0))

+		  lib_path = NULL;

 	      if (gld${EMULATION_NAME}_search_needed (lib_path, &n,

 						      force))

 		break;

@@ -1405,6 +1407,8 @@

   rpath = command_line.rpath;

   if (rpath == NULL)

     rpath = (const char *) getenv ("LD_RUN_PATH");

+  if ((rpath) && (strlen (rpath) == 0))

+      rpath = NULL;

   if (! (bfd_elf_size_dynamic_sections

 	 (link_info.output_bfd, command_line.soname, rpath,

 	  command_line.filter_shlib,