/* Core dump and executable file functions below target vector, for GDB.
Copyright (C) 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ 2011 Free Software Foundation, Inc.
This file is part of GDB.
static struct core_fns *core_file_fns = NULL;
-/* The core_fns for a core file handler that is prepared to read the core
- file currently open on core_bfd. */
+/* The core_fns for a core file handler that is prepared to read the
+ core file currently open on core_bfd. */
static struct core_fns *core_vec = NULL;
void _initialize_corelow (void);
-struct target_ops core_ops;
+static struct target_ops core_ops;
/* An arbitrary identifier for the core inferior. */
#define CORELOW_PID 1
-/* Link a new core_fns into the global core_file_fns list. Called on gdb
- startup by the _initialize routine in each core file register reader, to
- register information about each format the the reader is prepared to
- handle. */
+/* Link a new core_fns into the global core_file_fns list. Called on
+ gdb startup by the _initialize routine in each core file register
+ reader, to register information about each format the the reader is
+ prepared to handle. */
void
deprecated_add_core_fns (struct core_fns *cf)
/* The default function that core file handlers can use to examine a
core file BFD and decide whether or not to accept the job of
- reading the core file. */
+ reading the core file. */
int
default_core_sniffer (struct core_fns *our_fns, bfd *abfd)
/* Walk through the list of core functions to find a set that can
handle the core file open on ABFD. Default to the first one in the
list if nothing matches. Returns pointer to set that is
- selected. */
+ selected. */
static struct core_fns *
sniff_core_bfd (bfd *abfd)
struct core_fns *yummy = NULL;
int matches = 0;;
- /* Don't sniff if we have support for register sets in CORE_GDBARCH. */
+ /* Don't sniff if we have support for register sets in
+ CORE_GDBARCH. */
if (core_gdbarch && gdbarch_regset_from_core_section_p (core_gdbarch))
return NULL;
}
else if (matches == 0)
{
- warning (_("\"%s\": no core file handler recognizes format, using default"),
+ warning (_("\"%s\": no core file handler "
+ "recognizes format, using default"),
bfd_get_filename (abfd));
}
if (yummy == NULL)
/* The default is to reject every core file format we see. Either
BFD has to recognize it, or we have to provide a function in the
- core file handler that recognizes it. */
+ core file handler that recognizes it. */
int
default_check_format (bfd *abfd)
return (0);
}
-/* Attempt to recognize core file formats that BFD rejects. */
+/* Attempt to recognize core file formats that BFD rejects. */
static int
gdb_check_format (bfd *abfd)
return (0);
}
-/* Discard all vestiges of any previous core file and mark data and stack
- spaces as empty. */
+/* Discard all vestiges of any previous core file and mark data and
+ stack spaces as empty. */
static void
core_close (int quitting)
if (core_bfd)
{
int pid = ptid_get_pid (inferior_ptid);
- inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */
+ inferior_ptid = null_ptid; /* Avoid confusion from thread
+ stuff. */
exit_inferior_silent (pid);
- /* Clear out solib state while the bfd is still open. See
- comments in clear_solib in solib.c. */
+ /* Clear out solib state while the bfd is still open. See
+ comments in clear_solib in solib.c. */
clear_solib ();
xfree (core_data->sections);
core_close (0/*ignored*/);
}
-/* Look for sections whose names start with `.reg/' so that we can extract the
- list of threads in a core file. */
+/* Look for sections whose names start with `.reg/' so that we can
+ extract the list of threads in a core file. */
static void
add_to_thread_list (bfd *abfd, asection *asect, void *reg_sect_arg)
core_tid = atoi (bfd_section_name (abfd, asect) + 5);
- if (core_gdbarch
- && gdbarch_core_reg_section_encodes_pid (core_gdbarch))
- {
- uint32_t merged_pid = core_tid;
- pid = merged_pid & 0xffff;
- lwpid = merged_pid >> 16;
-
- /* This can happen on solaris core, for example, if we don't
- find a NT_PSTATUS note in the core, but do find NT_LWPSTATUS
- notes. */
- if (pid == 0)
- {
- core_has_fake_pid = 1;
- pid = CORELOW_PID;
- }
- }
- else
+ pid = bfd_core_file_pid (core_bfd);
+ if (pid == 0)
{
core_has_fake_pid = 1;
pid = CORELOW_PID;
- lwpid = core_tid;
}
+ lwpid = core_tid;
+
if (current_inferior ()->pid == 0)
inferior_appeared (current_inferior (), pid);
/* Warning, Will Robinson, looking at BFD private data! */
if (reg_sect != NULL
- && asect->filepos == reg_sect->filepos) /* Did we find .reg? */
- inferior_ptid = ptid; /* Yes, make it current */
+ && asect->filepos == reg_sect->filepos) /* Did we find .reg? */
+ inferior_ptid = ptid; /* Yes, make it current. */
}
/* This routine opens and sets up the core file bfd. */
if (!filename)
{
if (core_bfd)
- error (_("No core file specified. (Use `detach' to stop debugging a core file.)"));
+ error (_("No core file specified. (Use `detach' "
+ "to stop debugging a core file.)"));
else
error (_("No core file specified."));
}
filename = tilde_expand (filename);
- if (!IS_ABSOLUTE_PATH(filename))
+ if (!IS_ABSOLUTE_PATH (filename))
{
- temp = concat (current_directory, "/", filename, (char *)NULL);
+ temp = concat (current_directory, "/",
+ filename, (char *) NULL);
xfree (filename);
filename = temp;
}
&& !gdb_check_format (temp_bfd))
{
/* Do it after the err msg */
- /* FIXME: should be checking for errors from bfd_close (for one thing,
- on error it does not free all the storage associated with the
- bfd). */
+ /* FIXME: should be checking for errors from bfd_close (for one
+ thing, on error it does not free all the storage associated
+ with the bfd). */
make_cleanup_bfd_close (temp_bfd);
error (_("\"%s\" is not a core dump: %s"),
filename, bfd_errmsg (bfd_get_error ()));
}
- /* Looks semi-reasonable. Toss the old core file and work on the new. */
+ /* Looks semi-reasonable. Toss the old core file and work on the
+ new. */
discard_cleanups (old_chain); /* Don't free filename any more */
unpush_target (&core_ops);
/* Find the data section */
if (build_section_table (core_bfd,
- &core_data->sections, &core_data->sections_end))
+ &core_data->sections,
+ &core_data->sections_end))
error (_("\"%s\": Can't find sections: %s"),
bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ()));
/* Build up thread list from BFD sections, and possibly set the
current thread to the .reg/NN section matching the .reg
- section. */
+ section. */
bfd_map_over_sections (core_bfd, add_to_thread_list,
bfd_get_section_by_name (core_bfd, ".reg"));
siggy = bfd_core_file_failing_signal (core_bfd);
if (siggy > 0)
- /* NOTE: target_signal_from_host() converts a target signal value
- into gdb's internal signal value. Unfortunately gdb's internal
- value is called ``target_signal'' and this function got the
- name ..._from_host(). */
- printf_filtered (_("Program terminated with signal %d, %s.\n"), siggy,
- target_signal_to_string (
- (core_gdbarch != NULL) ?
- gdbarch_target_signal_from_host (core_gdbarch, siggy)
- : siggy));
+ {
+ /* NOTE: target_signal_from_host() converts a target signal
+ value into gdb's internal signal value. Unfortunately gdb's
+ internal value is called ``target_signal'' and this function
+ got the name ..._from_host(). */
+ enum target_signal sig = (core_gdbarch != NULL
+ ? gdbarch_target_signal_from_host (core_gdbarch,
+ siggy)
+ : target_signal_from_host (siggy));
+
+ printf_filtered (_("Program terminated with signal %d, %s.\n"),
+ siggy, target_signal_to_string (sig));
+ }
/* Fetch all registers from core file. */
target_fetch_registers (get_current_regcache (), -1);
NAME section contains, for use in error messages.
If REQUIRED is non-zero, print an error if the core file doesn't
- have a section by the appropriate name. Otherwise, just do nothing. */
+ have a section by the appropriate name. Otherwise, just do
+ nothing. */
static void
get_core_register_section (struct regcache *regcache,
xfree (section_name);
- if (core_gdbarch
- && gdbarch_core_reg_section_encodes_pid (core_gdbarch))
- {
- uint32_t merged_pid;
- int pid = ptid_get_pid (inferior_ptid);
-
- if (core_has_fake_pid)
- pid = 0;
-
- merged_pid = ptid_get_lwp (inferior_ptid);
- merged_pid = merged_pid << 16 | pid;
-
- section_name = xstrprintf ("%s/%s", name, plongest (merged_pid));
- }
- else if (ptid_get_lwp (inferior_ptid))
- section_name = xstrprintf ("%s/%ld", name, ptid_get_lwp (inferior_ptid));
+ if (ptid_get_lwp (inferior_ptid))
+ section_name = xstrprintf ("%s/%ld", name,
+ ptid_get_lwp (inferior_ptid));
else
section_name = xstrdup (name);
if (! section)
{
if (required)
- warning (_("Couldn't find %s registers in core file."), human_name);
+ warning (_("Couldn't find %s registers in core file."),
+ human_name);
return;
}
{
const struct regset *regset;
- regset = gdbarch_regset_from_core_section (core_gdbarch, name, size);
+ regset = gdbarch_regset_from_core_section (core_gdbarch,
+ name, size);
if (regset == NULL)
{
if (required)
/* Get the registers out of a core file. This is the machine-
independent part. Fetch_core_registers is the machine-dependent
- part, typically implemented in the xm-file for each architecture. */
+ part, typically implemented in the xm-file for each
+ architecture. */
/* We just get all the registers, so we don't use regno. */
{
struct spuid_list *list = list_p;
enum bfd_endian byte_order
- = bfd_big_endian (abfd)? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
+ = bfd_big_endian (abfd) ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
int fd, pos = 0;
sscanf (bfd_section_name (abfd, asect), "SPU/%d/regs%n", &fd, &pos);
static LONGEST
core_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
+ const gdb_byte *writebuf, ULONGEST offset,
+ LONGEST len)
{
switch (object)
{
if (readbuf)
{
/* When the StackGhost cookie is stored in core file, BFD
- represents this with a fake section called ".wcookie". */
+ represents this with a fake section called
+ ".wcookie". */
struct bfd_section *section;
bfd_size_type size;
if (readbuf && annex)
{
/* When the SPU contexts are stored in a core file, BFD
- represents this with a fake section called "SPU/<annex>". */
+ represents this with a fake section called
+ "SPU/<annex>". */
struct bfd_section *section;
bfd_size_type size;
default:
if (ops->beneath != NULL)
- return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
- readbuf, writebuf, offset, len);
+ return ops->beneath->to_xfer_partial (ops->beneath, object,
+ annex, readbuf,
+ writebuf, offset, len);
return -1;
}
}
\f
/* If mourn is being called in all the right places, this could be say
- `gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */
+ `gdb internal error' (since generic_mourn calls
+ breakpoint_init_inferior). */
static int
ignore (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt)
core_read_description (struct target_ops *target)
{
if (core_gdbarch && gdbarch_core_read_description_p (core_gdbarch))
- return gdbarch_core_read_description (core_gdbarch, target, core_bfd);
+ return gdbarch_core_read_description (core_gdbarch,
+ target, core_bfd);
return NULL;
}
core_pid_to_str (struct target_ops *ops, ptid_t ptid)
{
static char buf[64];
+ int pid;
+ /* The preferred way is to have a gdbarch/OS specific
+ implementation. */
if (core_gdbarch
&& gdbarch_core_pid_to_str_p (core_gdbarch))
- {
- char *ret = gdbarch_core_pid_to_str (core_gdbarch, ptid);
+ return gdbarch_core_pid_to_str (core_gdbarch, ptid);
- if (ret != NULL)
- return ret;
- }
+ /* Otherwise, if we don't have one, we'll just fallback to
+ "process", with normal_pid_to_str. */
- if (ptid_get_lwp (ptid) == 0)
- xsnprintf (buf, sizeof buf, "<main task>");
- else
- xsnprintf (buf, sizeof buf, "Thread %ld", ptid_get_lwp (ptid));
+ /* Try the LWPID field first. */
+ pid = ptid_get_lwp (ptid);
+ if (pid != 0)
+ return normal_pid_to_str (pid_to_ptid (pid));
+ /* Otherwise, this isn't a "threaded" core -- use the PID field, but
+ only if it isn't a fake PID. */
+ if (!core_has_fake_pid)
+ return normal_pid_to_str (ptid);
+
+ /* No luck. We simply don't have a valid PID to print. */
+ xsnprintf (buf, sizeof buf, "<main task>");
return buf;
}
core_ops.to_thread_alive = core_thread_alive;
core_ops.to_read_description = core_read_description;
core_ops.to_pid_to_str = core_pid_to_str;
- core_ops.to_stratum = core_stratum;
+ core_ops.to_stratum = process_stratum;
core_ops.to_has_memory = core_has_memory;
core_ops.to_has_stack = core_has_stack;
core_ops.to_has_registers = core_has_registers;
core_ops.to_magic = OPS_MAGIC;
+
+ if (core_target)
+ internal_error (__FILE__, __LINE__,
+ _("init_core_ops: core target already exists (\"%s\")."),
+ core_target->to_longname);
+ core_target = &core_ops;
}
void
projects / deliverable / binutils-gdb.git / blobdiff