[review] [ARM, sim] Fix build error and warnings

["Simon Marchi (Code Review)" <gerrit@gnutoolchain-gerrit.osci.io>]

Simon Marchi has posted comments on this change.

Change URL: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/726
......................................................................


Patch Set 1:

(2 comments)

| --- sim/arm/arminit.c
| +++ sim/arm/arminit.c
| @@ -36,15 +36,19 @@ void ARMul_Abort (ARMul_State * state, ARMword address);
|  unsigned ARMul_MultTable[32] =
|    { 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9,
|    10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 16
|  };
|  ARMword ARMul_ImmedTable[4096];	/* immediate DP LHS values */
|  char ARMul_BitList[256];	/* number of bits in a byte table */
|  
| +/* The PC pipeline value depends on whether ARM
| +   or Thumb instructions are being executed.  */
| +ARMword isize;

PS1, Line 45:

How does moving this here help?

There is a declaration of isize in armemu.h, and isize was defined in
armemu.c, so I don't immediately see what's wrong with the existing
code.

| +
|  /***************************************************************************\
|  *         Call this routine once to set up the emulator's tables.           *
|  \***************************************************************************/
|  
|  void
|  ARMul_EmulateInit (void)
|  {
|    unsigned long i, j;
| --- sim/arm/wrapper.c
| +++ sim/arm/wrapper.c
| @@ -126,16 +126,16 @@ };
|  
|  union maverick_acc_regs
|  {
|    long double ld;		/* Acc registers are 72-bits.  */
|  };
|  
| -struct maverick_regs     DSPregs[16];
| -union maverick_acc_regs  DSPacc[4];
| -ARMword DSPsc;
| +extern struct maverick_regs     DSPregs[16];

PS1, Line 132:

Would it be possible to place these declarations in a header file
shared between all files that use these variables?  Otherwise, there's
always the risk that they get out of sync.

| +extern union maverick_acc_regs  DSPacc[4];
| +extern ARMword DSPsc;
|  
|  static void
|  init (void)
|  {
|    static int done;
|  
|    if (!done)

-- 
Gerrit-Project: binutils-gdb
Gerrit-Branch: master
Gerrit-Change-Id: I21db699d3b61b2de8c44053e47be4387285af28f
Gerrit-Change-Number: 726
Gerrit-PatchSet: 1
Gerrit-Owner: Luis Machado <luis.machado@linaro.org>
Gerrit-Reviewer: Andrew Burgess <andrew.burgess@embecosm.com>
Gerrit-CC: Simon Marchi <simon.marchi@polymtl.ca>
Gerrit-Comment-Date: Wed, 27 Nov 2019 15:36:35 +0000
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