crosstool-ng: patches/glibc/2.5/190-alpha-sigsuspend.patch@aa934ec4b4ee

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 --- glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S.orig	2006-10-22 22:17:01.000000000 +0200

     2 +++ glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S	2006-10-22 22:18:05.000000000 +0200

     3 @@ -31,3 +31,21 @@

     4  libc_hidden_def (__sigsuspend)

     5  weak_alias (__sigsuspend, sigsuspend)

     6  strong_alias (__sigsuspend, __libc_sigsuspend)

7 +

     8 +#ifndef NO_CANCELLATION

     9 +	.globl __sigsuspend_nocancel;

    10 +	.align 4;

    11 +	.type __sigsuspend_nocancel, @function;

    12 +	.usepv __sigsuspend_nocancel, std;

    13 +	cfi_startproc;

    14 +__LABEL(__sigsuspend_nocancel)

    15 +	ldgp    gp, 0(pv);

    16 +	PSEUDO_PROF;

    17 +	PSEUDO_PREPARE_ARGS

    18 +	lda     v0, SYS_ify(sigsuspend);

    19 +	call_pal PAL_callsys;

    20 +	bne     a3, SYSCALL_ERROR_LABEL;

    21 +	ret;

    22 +	cfi_endproc;

    23 +	.size __sigsuspend_nocancel, .-__sigsuspend_nocancel

    24 +#endif

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 744	4bf8448536d5
permissions	-rw-r--r--