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Re: [PATCH 3/3] arc: Add support for Newlib

Anton Kolesov <Anton.Kolesov@synopsys.com> writes:

Hi Anton,

> +/* Implement the 'init_osabi' method of struct gdb_osabi_handler.  */
> +
> +static void
> +arc_newlib_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
> +{
> +  if (arc_debug)
> +    debug_printf ("arc-newlib: Initialization.\n");
> +
> +  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
> +
> +  /* Offset of original PC in longjmp jump buffer (in registers).  Value of PC
> +     offset can be found in newlib/libc/machine/arc/setjmp.S.  */
> +  tdep->jb_pc = 18;

What is jb_pc on arc-linux?  Is it 18 or a different one?  If it is 18
too, we can use arc_get_longjmp_target for both newlib and linux.  Patch
#1 is not needed.

-- 
Yao (齐尧)
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