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* The problem with stabs and sign extension
@ 2001-08-08 14:11 Daniel Jacobowitz
  2001-08-08 16:14 ` H . J . Lu
  0 siblings, 1 reply; 11+ messages in thread
From: Daniel Jacobowitz @ 2001-08-08 14:11 UTC (permalink / raw)
  To: gdb

The problem seems, to my inexperienced eye, to be in stabsread.c:

#define INTERNALIZE_SYMBOL(intern, extern, abfd)                        \
  {                                                                     \
    (intern).n_type = bfd_h_get_8 (abfd, (extern)->e_type);             \
    (intern).n_strx = bfd_h_get_32 (abfd, (extern)->e_strx);            \
    (intern).n_desc = bfd_h_get_16 (abfd, (extern)->e_desc);            \
    (intern).n_value = bfd_h_get_32 (abfd, (extern)->e_value);          \
  }

n_value is a CORE_ADDR.  bfd_h_get_32 returns a bfd_vma, without doing sign
extension.  For MIPS, we want sign extension to have happened here.  Right? 
It does if we're reading mdebug in (because ECOFF_SIGNED_32 is defined in
BFD).

On the other hand, I'm sure other targets don't want sign extension here. 
How should we handle this?

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer


^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2001-08-16 15:13 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2001-08-08 14:11 The problem with stabs and sign extension Daniel Jacobowitz
2001-08-08 16:14 ` H . J . Lu
2001-08-08 16:54   ` H . J . Lu
2001-08-08 17:03     ` H . J . Lu
2001-08-08 17:15       ` [rfa] " Daniel Jacobowitz
2001-08-08 21:06         ` H . J . Lu
2001-08-10 15:31         ` H . J . Lu
2001-08-14 21:58         ` Elena Zannoni
2001-08-14 22:04           ` H . J . Lu
     [not found]             ` <15226.51428.874589.613358@krustylu.cygnus.com>
2001-08-15 12:04               ` H . J . Lu
2001-08-16 15:13                 ` Daniel Jacobowitz

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