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-rw-r--r--binutils-2.25/bfd/ptrace-core.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/binutils-2.25/bfd/ptrace-core.c b/binutils-2.25/bfd/ptrace-core.c
new file mode 100644
index 00000000..9f6ffdf9
--- /dev/null
+++ b/binutils-2.25/bfd/ptrace-core.c
@@ -0,0 +1,218 @@
+/* BFD backend for core files which use the ptrace_user structure
+ Copyright 1993, 1994, 1995, 1996, 1998, 1999, 2001, 2002, 2003, 2004,
+ 2005, 2006, 2007, 2012 Free Software Foundation, Inc.
+ The structure of this file is based on trad-core.c written by John Gilmore
+ of Cygnus Support.
+ Modified to work with the ptrace_user structure by Kevin A. Buettner.
+ (Longterm it may be better to merge this file with trad-core.c)
+
+ This file is part of BFD, the Binary File Descriptor library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
+#ifdef PTRACE_CORE
+
+#include "sysdep.h"
+#include "bfd.h"
+#include "libbfd.h"
+
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <sys/ptrace.h>
+
+struct trad_core_struct
+{
+ asection *data_section;
+ asection *stack_section;
+ asection *reg_section;
+ struct ptrace_user u;
+};
+
+#define core_upage(bfd) (&((bfd)->tdata.trad_core_data->u))
+#define core_datasec(bfd) ((bfd)->tdata.trad_core_data->data_section)
+#define core_stacksec(bfd) ((bfd)->tdata.trad_core_data->stack_section)
+#define core_regsec(bfd) ((bfd)->tdata.trad_core_data->reg_section)
+
+/* forward declarations */
+
+const bfd_target *ptrace_unix_core_file_p (bfd *abfd);
+char * ptrace_unix_core_file_failing_command (bfd *abfd);
+int ptrace_unix_core_file_failing_signal (bfd *abfd);
+#define ptrace_unix_core_file_matches_executable_p generic_core_file_matches_executable_p
+#define ptrace_unix_core_file_pid _bfd_nocore_core_file_pid
+static void swap_abort (void);
+
+const bfd_target *
+ptrace_unix_core_file_p (bfd *abfd)
+{
+ int val;
+ struct ptrace_user u;
+ struct trad_core_struct *rawptr;
+ bfd_size_type amt;
+ flagword flags;
+
+ val = bfd_bread ((void *)&u, (bfd_size_type) sizeof u, abfd);
+ if (val != sizeof u || u.pt_magic != _BCS_PTRACE_MAGIC
+ || u.pt_rev != _BCS_PTRACE_REV)
+ {
+ /* Too small to be a core file */
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+ }
+
+ /* OK, we believe you. You're a core file (sure, sure). */
+
+ /* Allocate both the upage and the struct core_data at once, so
+ a single free() will free them both. */
+ amt = sizeof (struct trad_core_struct);
+ rawptr = (struct trad_core_struct *) bfd_zalloc (abfd, amt);
+
+ if (rawptr == NULL)
+ return 0;
+
+ abfd->tdata.trad_core_data = rawptr;
+
+ rawptr->u = u; /*Copy the uarea into the tdata part of the bfd */
+
+ /* Create the sections. */
+
+ flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
+ core_stacksec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".stack",
+ flags);
+ if (core_stacksec (abfd) == NULL)
+ goto fail;
+ core_datasec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".data",
+ flags);
+ if (core_datasec (abfd) == NULL)
+ goto fail;
+ core_regsec (abfd) = bfd_make_section_anyway_with_flags (abfd, ".reg",
+ SEC_HAS_CONTENTS);
+ if (core_regsec (abfd) == NULL)
+ goto fail;
+
+ /* FIXME: Need to worry about shared memory, library data, and library
+ text. I don't think that any of these things are supported on the
+ system on which I am developing this for though. */
+
+ core_datasec (abfd)->size = u.pt_dsize;
+ core_stacksec (abfd)->size = u.pt_ssize;
+ core_regsec (abfd)->size = sizeof (u);
+
+ core_datasec (abfd)->vma = u.pt_o_data_start;
+ core_stacksec (abfd)->vma = USRSTACK - u.pt_ssize;
+ core_regsec (abfd)->vma = 0 - sizeof (u); /* see trad-core.c */
+
+ core_datasec (abfd)->filepos = (int) u.pt_dataptr;
+ core_stacksec (abfd)->filepos = (int) (u.pt_dataptr + u.pt_dsize);
+ core_regsec (abfd)->filepos = 0; /* Register segment is ptrace_user */
+
+ /* Align to word at least */
+ core_stacksec (abfd)->alignment_power = 2;
+ core_datasec (abfd)->alignment_power = 2;
+ core_regsec (abfd)->alignment_power = 2;
+
+ return abfd->xvec;
+
+ fail:
+ bfd_release (abfd, abfd->tdata.any);
+ abfd->tdata.any = NULL;
+ bfd_section_list_clear (abfd);
+ return NULL;
+}
+
+char *
+ptrace_unix_core_file_failing_command (bfd *abfd)
+{
+ char *com = abfd->tdata.trad_core_data->u.pt_comm;
+
+ if (*com)
+ return com;
+ else
+ return 0;
+}
+
+int
+ptrace_unix_core_file_failing_signal (bfd *abfd)
+{
+ return abfd->tdata.trad_core_data->u.pt_sigframe.sig_num;
+}
+
+/* If somebody calls any byte-swapping routines, shoot them. */
+static void
+swap_abort (void)
+{
+ abort (); /* This way doesn't require any declaration for ANSI to fuck up */
+}
+
+#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
+#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
+#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
+#define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
+#define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
+#define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
+
+const bfd_target ptrace_core_vec =
+ {
+ "trad-core",
+ bfd_target_unknown_flavour,
+ BFD_ENDIAN_UNKNOWN, /* target byte order */
+ BFD_ENDIAN_UNKNOWN, /* target headers byte order */
+ (HAS_RELOC | EXEC_P | /* object flags */
+ HAS_LINENO | HAS_DEBUG |
+ HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ 0, /* symbol prefix */
+ ' ', /* ar_pad_char */
+ 16, /* ar_max_namelen */
+ NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
+ NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
+ NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
+ NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
+ NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
+ NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
+
+ { /* bfd_check_format */
+ _bfd_dummy_target, /* unknown format */
+ _bfd_dummy_target, /* object file */
+ _bfd_dummy_target, /* archive */
+ ptrace_unix_core_file_p /* a core file */
+ },
+ { /* bfd_set_format */
+ bfd_false, bfd_false,
+ bfd_false, bfd_false
+ },
+ { /* bfd_write_contents */
+ bfd_false, bfd_false,
+ bfd_false, bfd_false
+ },
+
+ BFD_JUMP_TABLE_GENERIC (_bfd_generic),
+ BFD_JUMP_TABLE_COPY (_bfd_generic),
+ BFD_JUMP_TABLE_CORE (ptrace_unix),
+ BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
+ BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
+ BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
+ BFD_JUMP_TABLE_WRITE (_bfd_generic),
+ BFD_JUMP_TABLE_LINK (_bfd_nolink),
+ BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+ NULL,
+
+ NULL /* backend_data */
+ };
+
+#endif /* PTRACE_CORE */
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