[Crash-utility] Patching more pseudo section symbols from layouts

[Dave Anderson]

----- Original Message -----
> 
> 
> ----- Original Message -----
> > 
> > Come to think of it, this is not important for analysis very much
> > as against making possible destructive impacts at the same time.
> > So I decide to cancel this patch set at here.
> 
> OK good -- that patch was way too complex for just being able display
> those additional section addresses.  Plus, for example, it resulted in
> this when run on RHEL5:

> ... [ cut ] ...

> But I will keep your first module-section-address-display patch
> queued for crash-6.0.2.

Hello Toshi,

Actually, after using this patch a bit, I've found that sometimes
it can be more confusing than helpful, especially with kernel modules
that only have a small number of symbols.  Plus it does things like
this, which is not particularly helpful:
 
 crash> sym -q odata
 ffffffff8007f2a4 (t) .text.mark_rodata_ro
 ffffffff8007f2a4 (T) mark_rodata_ro
 ffffffff80274000 (r) .rodata
 ffffffff80274000 (R) __start_rodata
 ffffffff802ecbac (A) __end_rodata
 ffffffff88004f20 (S) _MODULE_SECTION_START [.rodata] [ehci_hcd]
 ffffffff88005140 (S) _MODULE_SECTION_END [.rodata] [ehci_hcd]
 ffffffff88014ee0 (S) _MODULE_SECTION_START [.rodata] [ohci_hcd]
 ffffffff88015100 (S) _MODULE_SECTION_END [.rodata] [ohci_hcd]
 ffffffff88024160 (S) _MODULE_SECTION_START [.rodata] [uhci_hcd]
 ffffffff880243e0 (S) _MODULE_SECTION_END [.rodata] [uhci_hcd]
 ffffffff880382c0 (S) _MODULE_SECTION_START [.rodata] [jbd]
 ffffffff8803885e (S) _MODULE_SECTION_END [.rodata] [jbd]
 ffffffff8805c920 (S) _MODULE_SECTION_START [.rodata] [ext3]
 ffffffff8805da02 (S) _MODULE_SECTION_END [.rodata] [ext3]
 ffffffff8807fe20 (S) _MODULE_SECTION_START [.rodata] [scsi_mod]
 ...

But presumably you had your reasons for implementing it, so I'll
keep your patch in place -- but only as an option to the "mod" command.

So in order to have module symbol lists intermingled with section 
start/end address pseudo-symbols, I've added a "mod -g" flag that 
can be used in conjunction with "-s" or "-S".  Hopefully that works 
OK for you.

Thanks,
  Dave