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patches/glibc/2.7/240-sh-lowlevellock-asm.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
permissions -rw-r--r--
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-2.7/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S.orig	2007-08-03 16:44:15.000000000 +0100

     2 +++ glibc-2.7/nptl/sysdeps/unix/sysv/linux/sh/lowlevellock.S	2008-08-19 21:08:19.000000000 +0100

     3 @@ -76,7 +76,7 @@

     4  	add	tmp2, tmp 	; \

     5  	mov.l	@tmp, tmp2	; \

     6  	bra	98f		; \

     7 -	 mov	#FUTEX_PRIVATE_FLAG, tmp

     8 +	 mov	#FUTEX_PRIVATE_FLAG, tmp ; \

     9  99:	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \

    10  98:	extu.b	tmp, tmp	; \

    11  	xor	tmp, reg	; \

    12 @@ -88,7 +88,7 @@

    13  	add	tmp2, tmp 	; \

    14  	mov.l	@tmp, tmp2	; \

    15  	bra	98f		; \

    16 -	 mov	#FUTEX_PRIVATE_FLAG, tmp

    17 +	 mov	#FUTEX_PRIVATE_FLAG, tmp ; \

    18  99:	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \

    19  98:	extu.b	tmp, tmp	; \

    20  	xor	tmp, reg	; \

    21 @@ -96,13 +96,13 @@

    22  	mov	#FUTEX_WAIT, tmp ; \

    23  	or	tmp, reg

    24  # endif

    25 -# define LOAD_FUTEX_WAKE(reg,tmp) \

    26 +# define LOAD_FUTEX_WAKE(reg,tmp,tmp2) \

    27  	stc	gbr, tmp	; \

    28  	mov.w	99f, tmp2	; \

    29  	add	tmp2, tmp 	; \

    30  	mov.l	@tmp, tmp2	; \

    31  	bra	98f		; \

    32 -	 mov	#FUTEX_PRIVATE_FLAG, tmp

    33 +	 mov	#FUTEX_PRIVATE_FLAG, tmp ; \

    34  99:	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \

    35  98:	extu.b	tmp, tmp	; \

    36  	xor	tmp, reg	; \

    37 --- glibc-2.7/nptl/sysdeps/unix/sysv/linux/sh/lowlevelrobustlock.S.orig	2007-08-03 16:44:57.000000000 +0100

    38 +++ glibc-2.7/nptl/sysdeps/unix/sysv/linux/sh/lowlevelrobustlock.S	2008-08-19 21:08:22.000000000 +0100

    39 @@ -42,7 +42,7 @@

    40  	add	tmp2, tmp 	; \

    41  	mov.l	@tmp, tmp2	; \

    42  	bra	98f		; \

    43 -	 mov	#FUTEX_PRIVATE_FLAG, tmp

    44 +	 mov	#FUTEX_PRIVATE_FLAG, tmp ; \

    45  99:	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \

    46  98:	extu.b	tmp, tmp	; \

    47  	xor	tmp, reg	; \

    48 @@ -54,7 +54,7 @@

    49  	add	tmp2, tmp 	; \

    50  	mov.l	@tmp, tmp2	; \

    51  	bra	98f		; \

    52 -	 mov	#FUTEX_PRIVATE_FLAG, tmp

    53 +	 mov	#FUTEX_PRIVATE_FLAG, tmp ; \

    54  99:	.word	PRIVATE_FUTEX - TLS_PRE_TCB_SIZE ; \

    55  98:	extu.b	tmp, tmp	; \

    56  	xor	tmp, reg	; \
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