[PATCH] MIPS/GCC: Mark text contents as code or data

[Maciej W. Rozycki]

Hi Paul,

 Apologies for the delay in reply, my @imgtec.com address has since become 
defunct and I have only come across your e-mail in my ever-lagging routine 
mailing traffic review.

On Wed, 14 Mar 2018, Paul Hua wrote:

> I noticed that data-sym-pool.c fails on -O0 flags.
> 
> -O0 output :
> -----------------cut----------------------
> frob:
>         .frame  $17,8,$31               # vars= 0, regs= 1/0, args= 0, gp= 0
>         .mask   0x00020000,0
>         .fmask  0x00000000,0
>         addiu   $sp,-8
>         sd      $17,0($sp)
>         move    $17,$sp
>         lw      $2,$L4
>         move    $sp,$17
>         ld      $17,0($sp)
>         addiu   $sp,8
>         jr      $31
>         .type   __pool_frob_3, @object
> __pool_frob_3:
>         .align  2
> $L3:
>         .word   __gnu_local_gp
> $L4:
>         .word   305419896
>         .type   __pend_frob_3, @function
> __pend_frob_3:
>         .insn
>         .end    frob
>         .size   frob, .-frob
>         .ident  "GCC: (gcc trunk r258495 mips64el o32 n32 n64) 8.0.1
> 20180313 (experimental)"
> -------------end----------------------------------------------
> 
> Is it expected ? maybe we should add skip-if  -O0 flags.

 Thanks for your report.

 I think instead we should relax the matching pattern and also accept an 
arbitrary number of label-`.word' pairs ahead of and/or after the required 
one in the constant pool.  I'll post a fix.

  Maciej