Re: [PATCH 1/2] gdb/csky-tdep.c: fix -Wunused-but-set-variable error

Sorry, wrong list :(.  Please ignore.


On 2021-12-03 16:30, Simon Marchi wrote:
> Fix these, seen when building with clang 14:
> 
>       CXX    csky-tdep.o
>     /home/simark/src/binutils-gdb/gdb/csky-tdep.c:332:7: error: variable 'need_dummy_stack' set but not used [-Werror,-Wunused-but-set-variable]
>       int need_dummy_stack = 0;
>           ^
>     /home/simark/src/binutils-gdb/gdb/csky-tdep.c:805:12: error: variable 'offset' set but not used [-Werror,-Wunused-but-set-variable]
>                   int offset = 0;
>                       ^
> 
> Change-Id: I6703bcb50e83c50083f716f4084ef6aa30d659c4
> ---
>  gdb/csky-tdep.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/gdb/csky-tdep.c b/gdb/csky-tdep.c
> index 0b073fb6f629..3f591445aca4 100644
> --- a/gdb/csky-tdep.c
> +++ b/gdb/csky-tdep.c
> @@ -329,7 +329,6 @@ csky_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
>    int argnum;
>    int argreg = CSKY_ABI_A0_REGNUM;
>    int last_arg_regnum = CSKY_ABI_LAST_ARG_REGNUM;
> -  int need_dummy_stack = 0;
>    enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
>    std::vector<stack_item> stack_items;
>  
> @@ -399,7 +398,6 @@ csky_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
>  		{
>  		  /* The argument should be pushed onto the dummy stack.  */
>  		  stack_items.emplace_back (4, val);
> -		  need_dummy_stack += 4;
>  		}
>  	      len -= partial_len;
>  	      val += partial_len;
> @@ -802,21 +800,18 @@ csky_analyze_prologue (struct gdbarch *gdbarch,
>  	  else if (CSKY_32_IS_PUSH (insn))
>  	    {
>  	      /* Push for 32_bit.  */
> -	      int offset = 0;
>  	      if (CSKY_32_IS_PUSH_R29 (insn))
>  		{
>  		  stacksize += 4;
>  		  register_offsets[29] = stacksize;
>  		  if (csky_debug)
>  		    print_savedreg_msg (29, register_offsets, false);
> -		  offset += 4;
>  		}
>  	      if (CSKY_32_PUSH_LIST2 (insn))
>  		{
>  		  int num = CSKY_32_PUSH_LIST2 (insn);
>  		  int tmp = 0;
>  		  stacksize += num * 4;
> -		  offset += num * 4;
>  		  if (csky_debug)
>  		    {
>  		      fprintf_unfiltered (gdb_stdlog,
> @@ -842,14 +837,12 @@ csky_analyze_prologue (struct gdbarch *gdbarch,
>  		  register_offsets[15] = stacksize;
>  		  if (csky_debug)
>  		    print_savedreg_msg (15, register_offsets, false);
> -		  offset += 4;
>  		}
>  	      if (CSKY_32_PUSH_LIST1 (insn))
>  		{
>  		  int num = CSKY_32_PUSH_LIST1 (insn);
>  		  int tmp = 0;
>  		  stacksize += num * 4;
> -		  offset += num * 4;
>  		  if (csky_debug)
>  		    {
>  		      fprintf_unfiltered (gdb_stdlog,
>