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* elf.c (elfcore_netbsd_get_lwpid): New function.

Browse Source 
(elfcore_grok_netbsd_procinfo): New function.
	(elfcore_grok_netbsd_note): New function.
	(elfcore_read_notes): Call elfcore_grok_netbsd_note to process
	NetBSD ELF core file notes.
This commit is contained in:
Alan Modra 2001-12-18 07:53:11 +00:00
parent 0e254642e9
commit 50b2bdb780
2 changed files with 128 additions and 4 deletions
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12
bfd/ChangeLog
View File

@ -1,3 +1,11 @@
2001-12-18 Jason Thorpe <thorpej@wasabisystems.com>
* elf.c (elfcore_netbsd_get_lwpid): New function.
(elfcore_grok_netbsd_procinfo): New function.
(elfcore_grok_netbsd_note): New function.
(elfcore_read_notes): Call elfcore_grok_netbsd_note to process
NetBSD ELF core file notes.
2001-12-18 Alan Modra <amodra@bigpond.net.au>
* elfcode.h (struct bfd_preserve): New.
@ -11,7 +19,7 @@
2001-12-17 Tom Rix <trix@redhat.com>
* coffcode.h (sec_to_styp_flags): Add STYP_EXCEPT and STYP_TYPCHK for
* coffcode.h (sec_to_styp_flags): Add STYP_EXCEPT and STYP_TYPCHK for
xcoff.
2001-12-17 Jakub Jelinek <jakub@redhat.com>
@ -722,7 +730,7 @@
2001-11-14 Martin Schwidefsky <schwidefsky@de.ibm.com>
* elf32-s390.c (elf_s390_relocate_section): Use the "unresolved_reloc"
scheme to get rid of an ugly complicated test.
scheme to get rid of an ugly complicated test.
* elf64-s390.c (elf_s390_relocate_section): Likewise.
2001-11-14 Andreas Jaeger <aj@suse.de>

120
bfd/elf.c
View File

@ -71,6 +71,11 @@ static boolean elfcore_grok_prfpreg PARAMS ((bfd *, Elf_Internal_Note *));
static boolean elfcore_grok_prxfpreg PARAMS ((bfd *, Elf_Internal_Note *));
static boolean elfcore_grok_note PARAMS ((bfd *, Elf_Internal_Note *));
static boolean elfcore_netbsd_get_lwpid PARAMS ((Elf_Internal_Note *, int *));
static boolean elfcore_grok_netbsd_procinfo PARAMS ((bfd *,
Elf_Internal_Note *));
static boolean elfcore_grok_netbsd_note PARAMS ((bfd *, Elf_Internal_Note *));
/* Swap version information in and out. The version information is
currently size independent. If that ever changes, this code will
need to move into elfcode.h. */
@ -6352,6 +6357,109 @@ elfcore_grok_note (abfd, note)
}
}
static boolean
elfcore_netbsd_get_lwpid (note, lwpidp)
Elf_Internal_Note *note;
int *lwpidp;
{
char *cp;
cp = strchr (note->namedata, '@');
if (cp != NULL)
{
*lwpidp = atoi(cp);
return true;
}
return false;
}
static boolean
elfcore_grok_netbsd_procinfo (abfd, note)
bfd *abfd;
Elf_Internal_Note *note;
{
/* Signal number at offset 0x08. */
elf_tdata (abfd)->core_signal
= bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x08);
/* Process ID at offset 0x50. */
elf_tdata (abfd)->core_pid
= bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + 0x50);
/* Command name at 0x7c (max 32 bytes, including nul). */
elf_tdata (abfd)->core_command
= _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31);
return true;
}
static boolean
elfcore_grok_netbsd_note (abfd, note)
bfd *abfd;
Elf_Internal_Note *note;
{
int lwp;
if (elfcore_netbsd_get_lwpid (note, &lwp))
elf_tdata (abfd)->core_lwpid = lwp;
if (note->type == 1)
{
/* NetBSD-specific core "procinfo". Note that we expect to
find this note before any of the others, which is fine,
since the kernel writes this note out first when it
creates a core file. */
return elfcore_grok_netbsd_procinfo (abfd, note);
}
/* There are not currently any other machine-independent notes defined
for NetBSD ELF core files. If the note type is less than the start
of the machine-dependent note types, we don't understand it. */
if (note->type < 32)
return true;
switch (bfd_get_arch (abfd))
{
/* On the Alpha, SPARC (32-bit and 64-bit), PT_GETREGS == mach+0 and
PT_GETFPREGS == mach+2. */
case bfd_arch_alpha:
case bfd_arch_sparc:
switch (note->type)
{
case 32+0:
return elfcore_make_note_pseudosection (abfd, ".reg", note);
case 32+2:
return elfcore_make_note_pseudosection (abfd, ".reg2", note);
default:
return true;
}
/* On all other arch's, PT_GETREGS == mach+1 and
PT_GETFPREGS == mach+3. */
default:
switch (note->type)
{
case 32+1:
return elfcore_make_note_pseudosection (abfd, ".reg", note);
case 32+3:
return elfcore_make_note_pseudosection (abfd, ".reg2", note);
default:
return true;
}
}
/* NOTREACHED */
}
static boolean
elfcore_read_notes (abfd, offset, size)
bfd *abfd;
@ -6394,8 +6502,16 @@ elfcore_read_notes (abfd, offset, size)
in.descdata = in.namedata + BFD_ALIGN (in.namesz, 4);
in.descpos = offset + (in.descdata - buf);
if (! elfcore_grok_note (abfd, &in))
goto error;
if (strncmp (in.namedata, "NetBSD-CORE", 11) == 0)
{
if (! elfcore_grok_netbsd_note (abfd, &in))
goto error;
}
else
{
if (! elfcore_grok_note (abfd, &in))
goto error;
}
p = in.descdata + BFD_ALIGN (in.descsz, 4);
}