#include "defs.h"
#include "inferior.h"
+#include "infrun.h"
#include "target.h"
#include "gdbcore.h"
#include "elf-bfd.h" /* for elfcore_write_* */
/* This module defines the GDB target vector and its methods. */
-static void procfs_attach (struct target_ops *, char *, int);
+static void procfs_attach (struct target_ops *, const char *, int);
static void procfs_detach (struct target_ops *, const char *, int);
static void procfs_resume (struct target_ops *,
ptid_t, int, enum gdb_signal);
char *, char **, int);
static ptid_t procfs_wait (struct target_ops *,
ptid_t, struct target_waitstatus *, int);
-static int procfs_xfer_memory (CORE_ADDR, gdb_byte *, int, int,
- struct mem_attrib *attrib,
- struct target_ops *);
+static enum target_xfer_status procfs_xfer_memory (gdb_byte *,
+ const gdb_byte *,
+ ULONGEST, ULONGEST,
+ ULONGEST *);
static target_xfer_partial_ftype procfs_xfer_partial;
static int procfs_thread_alive (struct target_ops *ops, ptid_t);
static int proc_find_memory_regions (struct target_ops *self,
find_memory_region_ftype, void *);
-static char * procfs_make_note_section (bfd *, int *);
+static char * procfs_make_note_section (struct target_ops *self,
+ bfd *, int *);
static int procfs_can_use_hw_breakpoint (struct target_ops *self,
int, int, int);
-static void procfs_info_proc (struct target_ops *, char *,
+static void procfs_info_proc (struct target_ops *, const char *,
enum info_proc_what);
#if defined (PR_MODEL_NATIVE) && (PR_MODEL_NATIVE == PR_MODEL_LP64)
{
struct target_ops *t = inf_child_target ();
- t->to_shortname = "procfs";
- t->to_longname = "Unix /proc child process";
- t->to_doc =
- "Unix /proc child process (started by the \"run\" command).";
t->to_create_inferior = procfs_create_inferior;
t->to_kill = procfs_kill_inferior;
t->to_mourn_inferior = procfs_mourn_inferior;
t->to_fetch_registers = procfs_fetch_registers;
t->to_store_registers = procfs_store_registers;
t->to_xfer_partial = procfs_xfer_partial;
- t->deprecated_xfer_memory = procfs_xfer_memory;
t->to_pass_signals = procfs_pass_signals;
t->to_files_info = procfs_files_info;
t->to_stop = procfs_stop;
}
static void
-procfs_attach (struct target_ops *ops, char *args, int from_tty)
+procfs_attach (struct target_ops *ops, const char *args, int from_tty)
{
char *exec_file;
int pid;
fflush (stdout);
}
inferior_ptid = do_attach (pid_to_ptid (pid));
- push_target (ops);
+ if (!target_is_pushed (ops))
+ push_target (ops);
}
static void
inferior_ptid = null_ptid;
detach_inferior (pid);
- unpush_target (ops);
+ inf_child_maybe_unpush_target (ops);
}
static ptid_t
switch (object)
{
case TARGET_OBJECT_MEMORY:
- if (readbuf)
- return (*ops->deprecated_xfer_memory) (offset, readbuf,
- len, 0/*read*/, NULL, ops);
- if (writebuf)
- return (*ops->deprecated_xfer_memory) (offset, (gdb_byte *) writebuf,
- len, 1/*write*/, NULL, ops);
- return TARGET_XFER_E_IO;
+ return procfs_xfer_memory (readbuf, writebuf, offset, len, xfered_len);
#ifdef NEW_PROC_API
case TARGET_OBJECT_AUXV:
}
}
+/* Helper for procfs_xfer_partial that handles memory transfers.
+ Arguments are like target_xfer_partial. */
-/* Transfer LEN bytes between GDB address MYADDR and target address
- MEMADDR. If DOWRITE is non-zero, transfer them to the target,
- otherwise transfer them from the target. TARGET is unused.
-
- The return value is 0 if an error occurred or no bytes were
- transferred. Otherwise, it will be a positive value which
- indicates the number of bytes transferred between gdb and the
- target. (Note that the interface also makes provisions for
- negative values, but this capability isn't implemented here.) */
-
-static int
-procfs_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int dowrite,
- struct mem_attrib *attrib, struct target_ops *target)
+static enum target_xfer_status
+procfs_xfer_memory (gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST memaddr, ULONGEST len, ULONGEST *xfered_len)
{
procinfo *pi;
- int nbytes = 0;
+ int nbytes;
/* Find procinfo for main process. */
pi = find_procinfo_or_die (ptid_get_pid (inferior_ptid), 0);
open_procinfo_files (pi, FD_AS) == 0)
{
proc_warn (pi, "xfer_memory, open_proc_files", __LINE__);
- return 0;
+ return TARGET_XFER_E_IO;
}
- if (lseek (pi->as_fd, (off_t) memaddr, SEEK_SET) == (off_t) memaddr)
+ if (lseek (pi->as_fd, (off_t) memaddr, SEEK_SET) != (off_t) memaddr)
+ return TARGET_XFER_E_IO;
+
+ if (writebuf != NULL)
{
- if (dowrite)
- {
-#ifdef NEW_PROC_API
- PROCFS_NOTE ("write memory:\n");
-#else
- PROCFS_NOTE ("write memory:\n");
-#endif
- nbytes = write (pi->as_fd, myaddr, len);
- }
- else
- {
- PROCFS_NOTE ("read memory:\n");
- nbytes = read (pi->as_fd, myaddr, len);
- }
- if (nbytes < 0)
- {
- nbytes = 0;
- }
+ PROCFS_NOTE ("write memory:\n");
+ nbytes = write (pi->as_fd, writebuf, len);
}
- return nbytes;
+ else
+ {
+ PROCFS_NOTE ("read memory:\n");
+ nbytes = read (pi->as_fd, readbuf, len);
+ }
+ if (nbytes <= 0)
+ return TARGET_XFER_E_IO;
+ *xfered_len = nbytes;
+ return TARGET_XFER_OK;
}
/* Called by target_resume before making child runnable. Mark cached
if (pi)
destroy_procinfo (pi);
}
- unpush_target (ops);
+
+ generic_mourn_inferior ();
if (dbx_link_bpt != NULL)
{
dbx_link_bpt = NULL;
}
- generic_mourn_inferior ();
+ inf_child_maybe_unpush_target (ops);
}
/* When GDB forks to create a runnable inferior process, this function
/* This routine called on the parent side (GDB side)
after GDB forks the inferior. */
- push_target (ops);
+ if (!target_is_pushed (ops))
+ push_target (ops);
if ((pi = create_procinfo (pid, 0)) == NULL)
perror (_("procfs: out of memory in 'init_inferior'"));
/* Implement the "info proc" command. */
static void
-procfs_info_proc (struct target_ops *ops, char *args,
+procfs_info_proc (struct target_ops *ops, const char *args,
enum info_proc_what what)
{
struct cleanup *old_chain;
}
static char *
-procfs_make_note_section (bfd *obfd, int *note_size)
+procfs_make_note_section (struct target_ops *self, bfd *obfd, int *note_size)
{
struct cleanup *old_chain;
gdb_gregset_t gregs;
xfree (auxv);
}
- make_cleanup (xfree, note_data);
return note_data;
}
#else /* !Solaris */
static char *
-procfs_make_note_section (bfd *obfd, int *note_size)
+procfs_make_note_section (struct target_ops *self, bfd *obfd, int *note_size)
{
error (_("gcore not implemented for this host."));
return NULL; /* lint */
projects / deliverable / binutils-gdb.git / blobdiff