[RFA] xtensa-tdep.c ARI fix

[Maxim Grigoriev]

Hello Pierre, 

>> Maxim, is this OK?

Yes. Thank you very much for noticing this issue and making a clean-up.

-- Maxim


Pierre Muller wrote:
> Current ARI
> has one critical "hash" failure:
>
> hash	1	Do not use ` #...', instead use `#...'
> (some compilers only correctly parse a C preprocessor directive when `#' is
> the first character on the line)
>
> coming from xtensa-tdep.c
> It appears that the offending line is
>  #define BSZ 32           /* Instruction buffer size.  */
> I could have removed the starting spaces and commit the change as obvious,
> but there is already a macro defining the instruction buffer size
> at line 1050:
> #define XTENSA_ISA_BSZ 32      /* Instruction buffer size.  */
>
> So I propose here a patch getting rid of the BSZ macro
> and using XTENSA_ISA_BSZ in place of BSZ
> in call0_analyse_prologue function.
>
>   Maxim, is this OK?
>
>
> 2009-02-13  Pierre Muller  <muller@ics.u-strasbg.fr>
>
> 	* xtensa-tdep.c (call0_analyze_prologue): Delete BSZ macro.
> 	Replace BSZ macro uses by XTENSA_ISA_BSZ macro.
>
>
>
> Index: xtensa-tdep.c
> ===================================================================
> RCS file: /cvs/src/src/gdb/xtensa-tdep.c,v
> retrieving revision 1.30
> diff -u -p -r1.30 xtensa-tdep.c
> --- xtensa-tdep.c       3 Jan 2009 05:57:54 -0000       1.30
> +++ xtensa-tdep.c       13 Feb 2009 16:44:55 -0000
> @@ -2092,8 +2092,7 @@ call0_analyze_prologue (CORE_ADDR start,
>    CORE_ADDR ia;                    /* Current insn address in prologue.  */
>    CORE_ADDR ba = 0;        /* Current address at base of insn buffer.  */
>    CORE_ADDR bt;                    /* Current address at top+1 of insn
> buffer.
>  */
> -  #define BSZ 32           /* Instruction buffer size.  */
> -  char ibuf[BSZ];          /* Instruction buffer for decoding prologue.  */
> +  char ibuf[XTENSA_ISA_BSZ];/* Instruction buffer for decoding prologue.
> */
>    xtensa_isa isa;          /* libisa ISA handle.  */
>    xtensa_insnbuf ins, slot; /* libisa handle to decoded insn, slot.  */
>    xtensa_format ifmt;      /* libisa instruction format.  */
> @@ -2153,7 +2152,7 @@ call0_analyze_prologue (CORE_ADDR start,
>    if (!xtensa_default_isa)
>      xtensa_default_isa = xtensa_isa_init (0, 0);
>    isa = xtensa_default_isa;
> -  gdb_assert (BSZ >= xtensa_isa_maxlength (isa));
> +  gdb_assert (XTENSA_ISA_BSZ >= xtensa_isa_maxlength (isa));
>    ins = xtensa_insnbuf_alloc (isa);
>    slot = xtensa_insnbuf_alloc (isa);
>
> @@ -2166,7 +2165,7 @@ call0_analyze_prologue (CORE_ADDR start,
>        if (ia + xtensa_isa_maxlength (isa) > bt)
>          {
>           ba = ia;
> -         bt = (ba + BSZ) < body_pc ? ba + BSZ : body_pc;
> +         bt = (ba + XTENSA_ISA_BSZ) < body_pc ? ba + XTENSA_ISA_BSZ :
> body_pc;
>           read_memory (ba, ibuf, bt - ba);
>         }
>
>