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* elfcore.h: Add support for core files with multiple threads.

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(Primarily for Solaris.)
This commit is contained in:
Stu Grossman 1996-04-16 23:39:54 +00:00
parent 865447db04
commit 603fdf1679
2 changed files with 81 additions and 9 deletions
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5
bfd/ChangeLog
View File

@ -1,3 +1,8 @@
Tue Apr 16 16:36:38 1996 Stu Grossman (grossman@lisa.cygnus.com)
* elfcore.h: Add support for core files with multiple threads.
(Primarily for Solaris.)
Tue Apr 16 13:44:08 1996 Ian Lance Taylor <ian@cygnus.com>
* aoutx.h (NAME(aout,squirt_out_relocs)): Don't do anything if

85
bfd/elfcore.h
View File

@ -1,5 +1,5 @@
/* ELF core file support for BFD.
Copyright 1995 Free Software Foundation, Inc.
Copyright (C) 1995, 1996 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@ -21,27 +21,51 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_SYS_PROCFS_H /* Some core file support requires host /proc files */
#include <signal.h>
#include <sys/procfs.h>
/* Solaris includes the field pr_who that indicates the thread number within
the process. */
#ifdef PIOCOPENLWP
#define get_thread(STATUS) ((((prstatus_t *)(STATUS))->pr_who << 16) \
| ((prstatus_t *)(STATUS))->pr_pid)
#else
#define get_thread(STATUS) (((prstatus_t *)(STATUS))->pr_pid)
#endif
#else
#define bfd_prstatus(abfd, descdata, descsz, filepos) true
#define bfd_fpregset(abfd, descdata, descsz, filepos) true
#define bfd_prpsinfo(abfd, descdata, descsz, filepos) true
#define get_thread(STATUS) (1)
#endif
#ifdef HAVE_SYS_PROCFS_H
static int did_reg;
static int did_reg2;
static boolean
bfd_prstatus (abfd, descdata, descsz, filepos)
bfd_prstatus (abfd, descdata, descsz, filepos, thread)
bfd *abfd;
char *descdata;
int descsz;
long filepos;
int thread;
{
asection *newsect;
prstatus_t *status = (prstatus_t *) 0;
if (descsz == sizeof (prstatus_t))
{
newsect = bfd_make_section (abfd, ".reg");
char secname[100];
char *p;
sprintf (secname, ".reg/%d", thread);
p = bfd_alloc (abfd, strlen (secname) + 1);
if (!p)
return false;
strcpy (p, secname);
newsect = bfd_make_section (abfd, p);
if (newsect == NULL)
return false;
newsect->_raw_size = sizeof (status->pr_reg);
@ -52,6 +76,19 @@ bfd_prstatus (abfd, descdata, descsz, filepos)
{
memcpy (core_prstatus (abfd), descdata, descsz);
}
if (!did_reg++)
{
asection *regsect;
regsect = bfd_make_section (abfd, ".reg");
if (regsect == NULL)
return false;
regsect->_raw_size = newsect->_raw_size;
regsect->filepos = newsect->filepos;
regsect->flags = newsect->flags;
regsect->alignment_power = newsect->alignment_power;
}
}
return true;
}
@ -75,21 +112,44 @@ bfd_prpsinfo (abfd, descdata, descsz, filepos)
}
static boolean
bfd_fpregset (abfd, descdata, descsz, filepos)
bfd_fpregset (abfd, descdata, descsz, filepos, thread)
bfd *abfd;
char *descdata;
int descsz;
long filepos;
int thread;
{
asection *newsect;
char secname[100];
char *p;
newsect = bfd_make_section (abfd, ".reg2");
sprintf (secname, ".reg2/%d", thread);
p = bfd_alloc (abfd, strlen (secname) + 1);
if (!p)
return false;
strcpy (p, secname);
newsect = bfd_make_section (abfd, p);
if (newsect == NULL)
return false;
newsect->_raw_size = descsz;
newsect->filepos = filepos;
newsect->flags = SEC_HAS_CONTENTS;
newsect->alignment_power = 2;
if (!did_reg2++)
{
asection *regsect;
regsect = bfd_make_section (abfd, ".reg2");
if (regsect == NULL)
return false;
regsect->_raw_size = newsect->_raw_size;
regsect->filepos = newsect->filepos;
regsect->flags = newsect->flags;
regsect->alignment_power = newsect->alignment_power;
}
return true;
}
@ -237,6 +297,10 @@ elf_corefile_note (abfd, hdr)
char *sectname; /* Name to use for new section */
long filepos; /* File offset to descriptor data */
asection *newsect;
int thread = 1; /* Current thread number */
did_reg = 0; /* Non-zero if we made .reg section */
did_reg2 = 0; /* Ditto for .reg2 */
if (hdr->p_filesz > 0
&& (buf = (char *) bfd_malloc ((size_t) hdr->p_filesz)) != NULL
@ -256,15 +320,18 @@ elf_corefile_note (abfd, hdr)
{
case NT_PRSTATUS:
/* process descdata as prstatus info */
if (! bfd_prstatus (abfd, descdata, i_note.descsz, filepos))
thread = get_thread (descdata);
if (! bfd_prstatus (abfd, descdata, i_note.descsz, filepos,
thread))
return false;
sectname = ".prstatus";
sectname = NULL;
break;
case NT_FPREGSET:
/* process descdata as fpregset info */
if (! bfd_fpregset (abfd, descdata, i_note.descsz, filepos))
if (! bfd_fpregset (abfd, descdata, i_note.descsz, filepos,
thread))
return false;
sectname = ".fpregset";
sectname = NULL;
break;
case NT_PRPSINFO:
/* process descdata as prpsinfo */