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2002-01-08 Michael Snyder <msnyder@redhat.com> 

Add capability to write corefile note sections, for gdb.
	* elf.c (elfcore_write_note): New function.
	(elfcore_write_prpsinfo): New function.
	(elfcore_write_prstatus): New function.
	(elfcore_write_pstatus): New function.
	(elfcore_write_prfpreg): New function.
	(elfcore_write_prxfpreg): New function.
	* elf-bfd.h: Add prototypes for above functions.
This commit is contained in:
Michael Snyder 2002-01-08 21:31:36 +00:00
parent c7cccb7613
commit 7c76fa91ad
3 changed files with 161 additions and 0 deletions
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11
bfd/ChangeLog
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@ -1,3 +1,14 @@
2002-01-08 Michael Snyder <msnyder@redhat.com>
Add capability to write corefile note sections, for gdb.
* elf.c (elfcore_write_note): New function.
(elfcore_write_prpsinfo): New function.
(elfcore_write_prstatus): New function.
(elfcore_write_pstatus): New function.
(elfcore_write_prfpreg): New function.
(elfcore_write_prxfpreg): New function.
* elf-bfd.c: Add prototypes for above functions.
2002-01-08 Alexandre Oliva <aoliva@redhat.com>
* elf.c (elf_fake_sections): Propagate errors from

14
bfd/elf-bfd.h
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@ -1518,6 +1518,20 @@ extern boolean _bfd_elf32_reloc_symbol_deleted_p
extern boolean _bfd_elf64_reloc_symbol_deleted_p
PARAMS ((bfd_vma, PTR));
/* Exported interface for writing elf corefile notes. */
extern char *elfcore_write_note
PARAMS ((bfd *, char *, int *, char *, int, void *, int));
extern char *elfcore_write_prpsinfo
PARAMS ((bfd *, char *, int *, char *, char *));
extern char *elfcore_write_prstatus
PARAMS ((bfd *, char *, int *, pid_t, int, void *));
extern char * elfcore_write_pstatus
PARAMS ((bfd *, char *, int *, pid_t, int, void *));
extern char *elfcore_write_prfpreg
PARAMS ((bfd *, char *, int *, void *, int));
extern char *elfcore_write_prxfpreg
PARAMS ((bfd *, char *, int *, void *, int));
/* MIPS ELF specific routines. */
extern boolean _bfd_mips_elf_object_p

136
bfd/elf.c
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@ -6488,6 +6488,142 @@ elfcore_grok_netbsd_note (abfd, note)
/* NOTREACHED */
}
/* Function: elfcore_write_note
Inputs:
buffer to hold note
name of note
type of note
data for note
size of data for note
Return:
End of buffer containing note. */
char *
elfcore_write_note (abfd, buf, bufsiz, name, type, input, size)
bfd *abfd;
char *buf;
int *bufsiz;
char *name;
int type;
void *input;
int size;
{
Elf_External_Note *xnp;
int namesz = strlen (name);
int newspace = BFD_ALIGN (sizeof (Elf_External_Note) + size + namesz - 1, 4);
char *p, *dest;
p = realloc (buf, *bufsiz + newspace);
dest = p + *bufsiz;
*bufsiz += newspace;
xnp = (Elf_External_Note *) dest;
H_PUT_32 (abfd, namesz, xnp->namesz);
H_PUT_32 (abfd, size, xnp->descsz);
H_PUT_32 (abfd, type, xnp->type);
strcpy (xnp->name, name);
memcpy (xnp->name + BFD_ALIGN (namesz, 4), input, size);
return p;
}
#if defined (HAVE_PRPSINFO_T) || defined (HAVE_PSINFO_T)
char *
elfcore_write_prpsinfo (abfd, buf, bufsiz, fname, psargs)
bfd *abfd;
char *buf;
int *bufsiz;
char *fname;
char *psargs;
{
int note_type;
char *note_name = "CORE";
#if defined (HAVE_PSINFO_T)
psinfo_t data;
note_type = NT_PSINFO;
#else
prpsinfo_t data;
note_type = NT_PRPSINFO;
#endif
memset (&data, 0, sizeof (data));
strncpy (data.pr_fname, fname, sizeof (data.pr_fname));
strncpy (data.pr_psargs, psargs, sizeof (data.pr_psargs));
return elfcore_write_note (abfd, buf, bufsiz,
note_name, note_type, &data, sizeof (data));
}
#endif /* PSINFO_T or PRPSINFO_T */
#if defined (HAVE_PRSTATUS_T)
char *
elfcore_write_prstatus (abfd, buf, bufsiz, pid, cursig, gregs)
bfd *abfd;
char *buf;
int *bufsiz;
pid_t pid;
int cursig;
void *gregs;
{
prstatus_t prstat;
char *note_name = "CORE";
memset (&prstat, 0, sizeof (prstat));
prstat.pr_pid = pid;
prstat.pr_cursig = cursig;
memcpy (prstat.pr_reg, gregs, sizeof (prstat.pr_reg));
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_PRSTATUS, &prstat, sizeof (prstat));
}
#endif /* HAVE_PRSTATUS_T */
#if defined (HAVE_PSTATUS_T)
char *
elfcore_write_pstatus (abfd, buf, bufsiz, pid, cursig, gregs)
bfd *abfd;
char *buf;
int *bufsiz;
pid_t pid;
int cursig;
void *gregs;
{
pstatus_t pstat;
char *note_name = "CORE";
memset (&pstat, 0, sizeof (prstat));
pstat.pr_pid = pid;
memcpy (pstat.pr_reg, gregs, sizeof (pstat.pr_reg));
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_PSTATUS, &pstat, sizeof (pstat));
}
#endif /* HAVE_PSTATUS_T */
char *
elfcore_write_prfpreg (abfd, buf, bufsiz, fpregs, size)
bfd *abfd;
char *buf;
int *bufsiz;
void *fpregs;
int size;
{
char *note_name = "CORE";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_FPREGSET, fpregs, size);
}
char *
elfcore_write_prxfpreg (abfd, buf, bufsiz, xfpregs, size)
bfd *abfd;
char *buf;
int *bufsiz;
void *xfpregs;
int size;
{
char *note_name = "LINUX";
return elfcore_write_note (abfd, buf, bufsiz,
note_name, NT_PRXFPREG, xfpregs, size);
}
static boolean
elfcore_read_notes (abfd, offset, size)
bfd *abfd;