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Re: [patch] add hppa-linux corefile support


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randolph

In reference to a message from Randolph Chung, dated Nov 22:
> this patch teaches elf32-hppa.c about hppa-linux corefiles. Useful for
> tools like gdb. 
> 
> Tested with gdb-6.3.  Please apply if ok.
> 
> randolph
> 
> 
> 2004-11-22  Randolph Chung  <tausq@debian.org>
> 
> 	* elf32-hppa.c (elf32_hppa_grok_prstatus): New function.
> 	(elf32_hppa_grok_psinfo): New function.
> 	(elf_backend_grok_prstatus): Define.
> 	(elf_backend_grok_psinfo): Define.
> 
> Index: elf32-hppa.c
> ===================================================================
> RCS file: /cvs/src/src/bfd/elf32-hppa.c,v
> retrieving revision 1.123
> diff -u -p -r1.123 elf32-hppa.c
> --- elf32-hppa.c	21 Oct 2004 15:28:21 -0000	1.123
> +++ elf32-hppa.c	22 Nov 2004 22:33:21 -0000
> @@ -1600,6 +1600,68 @@ elf32_hppa_gc_sweep_hook (bfd *abfd,
>    return TRUE;
>  }
>  
> +
> +/* Support for core dump NOTE sections.  */
> +
> +static bfd_boolean
> +elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
> +{
> +  int offset;
> +  size_t size;
> +
> +  switch (note->descsz)
> +    {
> +      default:
> +	return FALSE;
> +
> +      case 396:		/* Linux/hppa */
> +	/* pr_cursig */
> +	elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
> +
> +	/* pr_pid */
> +	elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
> +
> +	/* pr_reg */
> +	offset = 72;
> +	size = 320;
> +
> +	break;
> +    }
> +
> +  /* Make a ".reg/999" section.  */
> +  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
> +					  size, note->descpos + offset);
> +}
> +
> +static bfd_boolean
> +elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
> +{
> +  switch (note->descsz)
> +    {
> +      default:
> +	return FALSE;
> +
> +      case 124:		/* Linux/hppa elf_prpsinfo.  */
> +	elf_tdata (abfd)->core_program
> +	  = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
> +	elf_tdata (abfd)->core_command
> +	  = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
> +    }
> +
> +  /* Note that for some reason, a spurious space is tacked
> +     onto the end of the args in some (at least one anyway)
> +     implementations, so strip it off if it exists.  */
> +  {
> +    char *command = elf_tdata (abfd)->core_command;
> +    int n = strlen (command);
> +
> +    if (0 < n && command[n - 1] == ' ')
> +      command[n - 1] = '\0';
> +  }
> +
> +  return TRUE;
> +}
> +
>  /* Our own version of hide_symbol, so that we can keep plt entries for
>     plabels.  */
>  
> @@ -4165,6 +4227,8 @@ elf32_hppa_elf_get_symbol_type (Elf_Inte
>  #define elf_backend_size_dynamic_sections    elf32_hppa_size_dynamic_sections
>  #define elf_backend_gc_mark_hook	     elf32_hppa_gc_mark_hook
>  #define elf_backend_gc_sweep_hook	     elf32_hppa_gc_sweep_hook
> +#define elf_backend_grok_prstatus	     elf32_hppa_grok_prstatus
> +#define elf_backend_grok_psinfo		     elf32_hppa_grok_psinfo
>  #define elf_backend_object_p		     elf32_hppa_object_p
>  #define elf_backend_final_write_processing   elf_hppa_final_write_processing
>  #define elf_backend_post_process_headers     elf32_hppa_post_process_headers
> -- 
> Randolph Chung
> Debian GNU/Linux Developer, hppa/ia64 ports
> http://www.tausq.org/
-- 
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/


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