crosstool-ng: patches/gcc/4.2.3/280-eabi

cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     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	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892	aa934ec4b4ee
parent 533	81a582c81c13
permissions	-rw-r--r--