diff options
| -rw-r--r-- | bfd/ChangeLog | 11 | ||||
| -rw-r--r-- | bfd/elf-bfd.h | 14 | ||||
| -rw-r--r-- | bfd/elf.c | 136 |
3 files changed, 161 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 168ba0d..4f8b3bd 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -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 diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index a0518d1..018f2d0 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -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 @@ -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; |