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2004-01-28 Roland McGrath <roland@redhat.com>

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* procfs.c (procfs_xfer_partial): New function.
	(init_procfs_ops): Use that for procfs_ops.to_xfer_partial.
	* Makefile.in (procfs.o): Add $(auxv_h) dep.
	* procfs.c (procfs_make_note_section): If we can read
	TARGET_OBJECT_AUXV data, add an NT_AUXV note containing it.
	* linux-proc.c (linux_make_note_section): Likewise.
This commit is contained in:
Roland McGrath 2004-02-01 22:35:13 +00:00
parent 2146d243ce
commit 4e73f23d28
1 changed files with 51 additions and 0 deletions
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51
gdb/procfs.c
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@ -48,6 +48,7 @@ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "gdb_string.h"
#include "gdb_assert.h"
#include "inflow.h"
#include "auxv.h"
/*
* PROCFS.C
@ -128,6 +129,11 @@ static ptid_t procfs_wait (ptid_t, struct target_waitstatus *);
static int procfs_xfer_memory (CORE_ADDR, char *, int, int,
struct mem_attrib *attrib,
struct target_ops *);
static LONGEST procfs_xfer_partial (struct target_ops *ops,
enum target_object object,
const char *annex,
void *readbuf, const void *writebuf,
ULONGEST offset, LONGEST len);
static int procfs_thread_alive (ptid_t);
@ -165,6 +171,7 @@ init_procfs_ops (void)
procfs_ops.to_prepare_to_store = procfs_prepare_to_store;
procfs_ops.to_fetch_registers = procfs_fetch_registers;
procfs_ops.to_store_registers = procfs_store_registers;
procfs_ops.to_xfer_partial = procfs_xfer_partial;
procfs_ops.to_xfer_memory = procfs_xfer_memory;
procfs_ops.to_insert_breakpoint = memory_insert_breakpoint;
procfs_ops.to_remove_breakpoint = memory_remove_breakpoint;
@ -4268,6 +4275,40 @@ wait_again:
return retval;
}
/* Perform a partial transfer to/from the specified object. For
memory transfers, fall back to the old memory xfer functions. */
static LONGEST
procfs_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, void *readbuf,
const void *writebuf, ULONGEST offset, LONGEST len)
{
switch (object)
{
case TARGET_OBJECT_MEMORY:
if (readbuf)
return (*ops->to_xfer_memory) (offset, readbuf, len, 0/*write*/,
NULL, ops);
if (writebuf)
return (*ops->to_xfer_memory) (offset, readbuf, len, 1/*write*/,
NULL, ops);
return -1;
#ifdef NEW_PROC_API
case TARGET_OBJECT_AUXV:
return procfs_xfer_auxv (ops, object, annex, readbuf, writebuf,
offset, len);
#endif
default:
if (ops->beneath != NULL)
return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
readbuf, writebuf, offset, len);
return -1;
}
}
/* 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.
@ -5850,6 +5891,8 @@ procfs_make_note_section (bfd *obfd, int *note_size)
char *note_data = NULL;
char *inf_args;
struct procfs_corefile_thread_data thread_args;
char *auxv;
int auxv_len;
if (get_exec_file (0))
{
@ -5898,6 +5941,14 @@ procfs_make_note_section (bfd *obfd, int *note_size)
note_data = thread_args.note_data;
}
auxv_len = target_auxv_read (&current_target, &auxv);
if (auxv_len > 0)
{
note_data = elfcore_write_note (obfd, note_data, note_size,
"CORE", NT_AUXV, auxv, auxv_len);
xfree (auxv);
}
make_cleanup (xfree, note_data);
return note_data;
}