patches/gcc/3.4.6/190-all_sh-pr16665-fix.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Dec 31 16:23:27 2011 +0100 (2011-12-31)
changeset 2814 3dc2727ebffc
parent 402 197e1b49586e
permissions -rw-r--r--
cc/gcc: add option to use system zlib

In some cases, it might be desirable to use the system zlib

Eg. because latest gcc seem to be totally borked when it comes
to multilib, and tries to build a multilib host zlib, when it
is *absolutely* *not* needed: we want mulitlib on the target,
not on the host! Sigh... :-(

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 diff -durN gcc-3.4.6.orig/gcc/config/sh/sh.c gcc-3.4.6/gcc/config/sh/sh.c
     2 --- gcc-3.4.6.orig/gcc/config/sh/sh.c	2004-09-03 08:51:30.000000000 +0200
     3 +++ gcc-3.4.6/gcc/config/sh/sh.c	2007-08-15 23:01:48.000000000 +0200
     4 @@ -9107,6 +9107,15 @@
     5      }
     6    this = FUNCTION_ARG (cum, Pmode, ptr_type_node, 1);
     7  
     8 +  /* In PIC case, we set PIC register to compute the target address.  We
     9 +     can use a scratch register to save and restore the original value  
    10 +     except for SHcompact.  For SHcompact, use stack.  */
    11 +  if (flag_pic && TARGET_SHCOMPACT)
    12 +    {
    13 +      push (PIC_OFFSET_TABLE_REGNUM);
    14 +      emit_insn (gen_GOTaddr2picreg ());
    15 +    }
    16 +
    17    /* For SHcompact, we only have r0 for a scratch register: r1 is the
    18       static chain pointer (even if you can't have nested virtual functions
    19       right now, someone might implement them sometime), and the rest of the
    20 @@ -9189,8 +9198,24 @@
    21        assemble_external (function);
    22        TREE_USED (function) = 1;
    23      }
    24 +  /* We can use scratch1 to save and restore the original value of
    25 +     PIC register except for SHcompact.  */
    26 +  if (flag_pic && ! TARGET_SHCOMPACT)
    27 +    {
    28 +      emit_move_insn (scratch1,
    29 +		      gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM));
    30 +      emit_insn (gen_GOTaddr2picreg ());
    31 +    }
    32    funexp = XEXP (DECL_RTL (function), 0);
    33    emit_move_insn (scratch2, funexp);
    34 +  if (flag_pic)
    35 +    {
    36 +      if (! TARGET_SHCOMPACT)
    37 +	emit_move_insn (gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM),
    38 +			scratch1);
    39 +      else
    40 +	pop (PIC_OFFSET_TABLE_REGNUM);
    41 +    }
    42    funexp = gen_rtx_MEM (FUNCTION_MODE, scratch2);
    43    sibcall = emit_call_insn (gen_sibcall (funexp, const0_rtx, NULL_RTX));
    44    SIBLING_CALL_P (sibcall) = 1;