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patches/eglibc/2_9/100-powerpc-8xx-CPU15-errata.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Tue Jul 31 22:27:29 2012 +0200 (2012-07-31)
changeset 3018 7776e8369284
permissions -rw-r--r--
complibs/cloog: create missing m4 dir

Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).

Always create tht directory.

Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> 
     1 diff -ru eglibc-2_9_orig/sysdeps/powerpc/powerpc32/memset.S eglibc-2_9/sysdeps/powerpc/powerpc32/memset.S

     2 --- eglibc-2_9_orig/sysdeps/powerpc/powerpc32/memset.S	2007-04-13 08:35:45.000000000 -0700

     3 +++ eglibc-2_9/sysdeps/powerpc/powerpc32/memset.S	2009-05-06 16:52:04.000000000 -0700

     4 @@ -112,11 +112,13 @@

     5  	clrrwi.	rALIGN, rLEN, 5

     6  	mtcrf	0x01, rLEN	/* 40th instruction from .align */

     7  

     8 +#ifndef BROKEN_PPC_8xx_CPU15

     9  /* Check if we can use the special case for clearing memory using dcbz.

    10     This requires that we know the correct cache line size for this

    11     processor.  Getting the __cache_line_size may require establishing GOT

    12     addressability, so branch out of line to set this up.  */

    13  	beq	cr1, L(checklinesize)

    14 +#endif

    15  

    16  /* Store blocks of 32-bytes (256-bits) starting on a 32-byte boundary.

    17     Can't assume that rCHR is zero or that the cache line size is either

    18 @@ -158,6 +160,7 @@

    19  	add	rMEMP, rMEMP, rALIGN

    20  	b	L(medium_tail2)	/* 72nd instruction from .align */

    21  

    22 +#ifndef BROKEN_PPC_8xx_CPU15

    23  	.align	5

    24  	nop

    25  /* Clear cache lines of memory in 128-byte chunks.

    26 @@ -191,6 +194,7 @@

    27  	bdnz	L(zloop)

    28  	beqlr	cr5

    29  	b	L(medium_tail2)

    30 +#endif /* ! BROKEN_PPC_8xx_CPU15 */

    31  

    32  	.align	5

    33  L(small):

    34 @@ -248,6 +252,7 @@

    35  	stw	rCHR, -8(rMEMP)

    36  	blr

    37  

    38 +#ifndef BROKEN_PPC_8xx_CPU15

    39  L(checklinesize):

    40  #ifdef SHARED

    41  	mflr	rTMP

    42 @@ -329,6 +334,7 @@

    43  L(handletail32):

    44  	clrrwi.	rALIGN, rLEN, 5

    45  	b	L(nondcbz)

    46 +#endif /* ! BROKEN_PPC_8xx_CPU15 */

    47  

    48  END (BP_SYM (memset))

    49  libc_hidden_builtin_def (memset)
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