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patches/dmalloc/5.5.2/130-mips.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
parent 103 b6e20abe9256
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 Patch to correctly handle the MIPS case.

     2 

     3 It was build up by Yann E. MORIN <yann.morin.1998@anciens.enib.fr> from some

     4 bits gathered from buildroot, which is LGPL v2.1

     5 License for dmalloc is:

     6  * Permission to use, copy, modify, and distribute this software for

     7  * any purpose and without fee is hereby granted, provided that the

     8  * above copyright notice and this permission notice appear in all

     9  * copies, and that the name of Gray Watson not be used in advertising

    10  * or publicity pertaining to distribution of the document or software

    11  * without specific, written prior permission.

    12  *

    13  * Gray Watson makes no representations about the suitability of the

    14  * software described herein for any purpose.  It is provided "as is"

    15  * without express or implied warranty.

    16 

    17 I personnaly believe that the resulting code should therefore be

    18 LGPL v2.1, but don't believe me, ask your lawyers!

    19 

    20 diff -dur dmalloc-5.5.2.orig/configure dmalloc-5.5.2/configure

    21 --- dmalloc-5.5.2.orig/configure	2007-05-18 12:15:39.000000000 +0200

    22 +++ dmalloc-5.5.2/configure	2007-05-18 12:15:48.000000000 +0200

    23 @@ -7107,7 +7107,7 @@

    24  echo $ECHO_N "checking return.h macros work... $ECHO_C" >&6

    25  if test "$cross_compiling" = yes; then

    26     cat >>confdefs.h <<\_ACEOF

    27 -#define RETURN_MACROS_WORK 0

    28 +#define RETURN_MACROS_WORK 1

    29  _ACEOF

    30   echo "$as_me:$LINENO: result: no" >&5

    31  echo "${ECHO_T}no" >&6

    32 diff -dur dmalloc-5.5.2.orig/return.h dmalloc-5.5.2/return.h

    33 --- dmalloc-5.5.2.orig/return.h	2007-05-14 19:26:14.000000000 +0200

    34 +++ dmalloc-5.5.2/return.h	2007-05-18 12:15:48.000000000 +0200

    35 @@ -106,26 +106,16 @@

    36  /*************************************/

    37  

    38  /*

    39 - * For DEC Mips machines running Ultrix

    40 + * For Mips machines running Linux

    41   */

    42  #if __mips

    43  

    44  /*

    45 - * I have no idea how to get inline assembly with the default cc.

    46 - * Anyone know how?

    47 - */

    48 -

    49 -#if 0

    50 -

    51 -/*

    52   * NOTE: we assume here that file is global.

    53   *

    54 - * $31 is the frame pointer.  $2 looks to be the return address but maybe

    55 - * not consistently.

    56 + * $31 is the return address.

    57   */

    58 -#define GET_RET_ADDR(file)	asm("sw $2, file")

    59 -

    60 -#endif

    61 +#define GET_RET_ADDR(file)	asm("sw $31, %0" : "=m" (file))

    62  

    63  #endif /* __mips */

    64
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