Re: [PATCH] Add missing help options to the option list

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----- Original Message -----
> On 5/6/2019 11:26 AM, Dave Anderson wrote:
> > 
> > 
> > ----- Original Message -----
> >> Hi Dave,
> >>
> >> I wanted to see net->flags for a vmcore and could see it with "help -N"
> >> option.  But it is not listed in the help option list, which is printed
> >> by "help help" command.  Is it just missed?
> >>
> >> Also, I found that -g, -O and -z options are missing from the list, too.
> >> I think it might be helpful for some users to add the -g and -z options
> >> to it, but I'm not sure whether the -O option should be added.
> > 
> > The -g and -N options should be added, and although -z is essentially a
> > shortened version of "help help", I suppose it could be added as well.
> > 
> > However, the -O option is a remnant from many years ago when I attempted
> > to allow the creation of a file of kernel-version-specific offsets, sizes,
> > etc, from a vmlinux file built with -g, and then subsequently using that
> > file with a stripped vmlinux file of the same version.  (It was an idea
> > from back in the RHEL2.1 days, which released a vmlinux file that was
> > stripped of debuginfo data.)  Anyway, that code was never truly functional,
> > and is just leftover cruft.
> 
> Thank you for the detail, I understood.
> Then the patch below would be enough?

Yes, that's fine -- I'll post the git commit when I get around to it.

Thanks,
  Dave

> 
> Thanks,
> Kazu
> 
> > 
> > Thanks,
> >   Dave
> >  
> >>
> >> Signed-off-by: Kazuhito Hagio <k-hagio@xxxxxxxxxxxxx>
> >> ---
> >>  help.c | 6 ++++++
> >>  net.c  | 2 +-
> >>  2 files changed, 7 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/help.c b/help.c
> >> index f4ac1baf94b6..c0c750f8f39f 100644
> >> --- a/help.c
> >> +++ b/help.c
> >> @@ -647,6 +647,7 @@ cmd_help(void)
> >>  			fprintf(fp, " -D - dumpfile contents/statistics\n");
> >>  			fprintf(fp, " -e - extension table data\n");
> >>  			fprintf(fp, " -f - filesys table\n");
> >> +			fprintf(fp, " -g - gdb data\n");
> >>  			fprintf(fp, " -h - hash_table data\n");
> >>  			fprintf(fp, " -H - hash_table data (verbose)\n");
> >>  			fprintf(fp, " -k - kernel_table\n");
> >> @@ -654,6 +655,7 @@ cmd_help(void)
> >>  			fprintf(fp, " -L - LKCD page cache environment\n");
> >>  			fprintf(fp, " -M <num> machine specific\n");
> >>  			fprintf(fp, " -m - machdep_table\n");
> >> +			fprintf(fp, " -N - net_table\n");
> >>  			fprintf(fp, " -n - dumpfile contents/statistics\n");
> >>  			fprintf(fp, " -o - offset_table and size_table\n");
> >>  			fprintf(fp, " -p - program_context\n");
> >> @@ -664,6 +666,7 @@ cmd_help(void)
> >>  			fprintf(fp, " -v - vm_table\n");
> >>  			fprintf(fp, " -V - vm_table (verbose)\n");
> >>  			fprintf(fp, " -x - text cache\n");
> >> +			fprintf(fp, " -z - help options\n");
> >>  			return;
> >>  
> >>  		case 'L':
> >> @@ -1004,6 +1007,7 @@ char *help_help[] = {
> >>  "    -D - dumpfile contents/statistics",
> >>  "    -e - extension table data",
> >>  "    -f - filesys table",
> >> +"    -g - gdb data",
> >>  "    -h - hash_table data",
> >>  "    -H - hash_table data (verbose)",
> >>  "    -k - kernel_table",
> >> @@ -1011,6 +1015,7 @@ char *help_help[] = {
> >>  "    -L - LKCD page cache environment",
> >>  "    -M <num> machine specific",
> >>  "    -m - machdep_table",
> >> +"    -N - net_table",
> >>  "    -n - dumpfile contents/statistics",
> >>  "    -o - offset_table and size_table",
> >>  "    -p - program_context",
> >> @@ -1021,6 +1026,7 @@ char *help_help[] = {
> >>  "    -v - vm_table",
> >>  "    -V - vm_table (verbose)",
> >>  "    -x - text cache",
> >> +"    -z - help options",
> >>  NULL
> >>  };
> >>  
> >> diff --git a/net.c b/net.c
> >> index f08f22a2c833..7c9c8bd9c98d 100644
> >> --- a/net.c
> >> +++ b/net.c
> >> @@ -1279,7 +1279,7 @@ dump_hw_addr(unsigned char *ha, int len)
> >>  }
> >>  
> >>  /*
> >> - *  help -n output
> >> + *  help -N output
> >>   */
> >>  void
> >>  dump_net_table(void)
> >> --
> >> 2.18.1
> >>
> >>
> > 
> > --
> > Crash-utility mailing list
> > Crash-utility@xxxxxxxxxx
> > https://www.redhat.com/mailman/listinfo/crash-utility
> > 
> 

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