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)
{
switch (object)
{
case TARGET_OBJECT_MEMORY:
return section_table_xfer_memory_partial (readbuf, writebuf,
offset, len,
core_data->sections,
core_data->sections_end,
NULL);
case TARGET_OBJECT_AUXV:
if (readbuf)
{
/* When the aux vector is stored in core file, BFD
represents this with a fake section called ".auxv". */
struct bfd_section *section;
bfd_size_type size;
section = bfd_get_section_by_name (core_bfd, ".auxv");
if (section == NULL)
return -1;
size = bfd_section_size (core_bfd, section);
if (offset >= size)
return 0;
size -= offset;
if (size > len)
size = len;
if (size > 0
&& !bfd_get_section_contents (core_bfd, section, readbuf,
(file_ptr) offset, size))
{
warning (_("Couldn't read NT_AUXV note in core file."));
return -1;
}
return size;
}
return -1;
case TARGET_OBJECT_WCOOKIE:
if (readbuf)
{
/* When the StackGhost cookie is stored in core file, BFD
represents this with a fake section called
".wcookie". */
struct bfd_section *section;
bfd_size_type size;
section = bfd_get_section_by_name (core_bfd, ".wcookie");
if (section == NULL)
return -1;
size = bfd_section_size (core_bfd, section);
if (offset >= size)
return 0;
size -= offset;
if (size > len)
size = len;
if (size > 0
&& !bfd_get_section_contents (core_bfd, section, readbuf,
(file_ptr) offset, size))
{
warning (_("Couldn't read StackGhost cookie in core file."));
return -1;
}
return size;
}
return -1;
case TARGET_OBJECT_LIBRARIES:
if (core_gdbarch
&& gdbarch_core_xfer_shared_libraries_p (core_gdbarch))
{
if (writebuf)
return -1;
return
gdbarch_core_xfer_shared_libraries (core_gdbarch,
readbuf, offset, len);
}
/* FALL THROUGH */
case TARGET_OBJECT_SPU:
if (readbuf && annex)
{
/* When the SPU contexts are stored in a core file, BFD
represents this with a fake section called
"SPU/<annex>". */
struct bfd_section *section;
bfd_size_type size;
char sectionstr[100];
xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex);
section = bfd_get_section_by_name (core_bfd, sectionstr);
if (section == NULL)
return -1;
size = bfd_section_size (core_bfd, section);
if (offset >= size)
return 0;
size -= offset;
if (size > len)
size = len;
if (size > 0
&& !bfd_get_section_contents (core_bfd, section, readbuf,
(file_ptr) offset, size))
{
warning (_("Couldn't read SPU section in core file."));
return -1;
}
return size;
}
else if (readbuf)
{
/* NULL annex requests list of all present spuids. */
struct spuid_list list;
list.buf = readbuf;
list.offset = offset;
list.len = len;
list.pos = 0;
list.written = 0;
bfd_map_over_sections (core_bfd, add_to_spuid_list, &list);
return list.written;
}
return -1;
default:
if (ops->beneath != NULL)
return ops->beneath->to_xfer_partial (ops->beneath, object,
annex, readbuf,
writebuf, offset, len);
return -1;
}
}
enum target_xfer_status
core_target::xfer_partial (enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
{
switch (object)
{
case TARGET_OBJECT_MEMORY:
return (section_table_xfer_memory_partial
(readbuf, writebuf,
offset, len, xfered_len,
m_core_section_table.sections,
m_core_section_table.sections_end,
NULL));
case TARGET_OBJECT_AUXV:
if (readbuf)
{
/* When the aux vector is stored in core file, BFD
represents this with a fake section called ".auxv". */
struct bfd_section *section;
bfd_size_type size;
section = bfd_get_section_by_name (core_bfd, ".auxv");
if (section == NULL)
return TARGET_XFER_E_IO;
size = bfd_section_size (core_bfd, section);
if (offset >= size)
return TARGET_XFER_EOF;
size -= offset;
if (size > len)
size = len;
if (size == 0)
return TARGET_XFER_EOF;
if (!bfd_get_section_contents (core_bfd, section, readbuf,
(file_ptr) offset, size))
{
warning (_("Couldn't read NT_AUXV note in core file."));
return TARGET_XFER_E_IO;
}
*xfered_len = (ULONGEST) size;
return TARGET_XFER_OK;
}
return TARGET_XFER_E_IO;
case TARGET_OBJECT_WCOOKIE:
if (readbuf)
{
/* When the StackGhost cookie is stored in core file, BFD
represents this with a fake section called
".wcookie". */
struct bfd_section *section;
bfd_size_type size;
section = bfd_get_section_by_name (core_bfd, ".wcookie");
if (section == NULL)
return TARGET_XFER_E_IO;
size = bfd_section_size (core_bfd, section);
if (offset >= size)
return TARGET_XFER_EOF;
size -= offset;
if (size > len)
size = len;
if (size == 0)
return TARGET_XFER_EOF;
if (!bfd_get_section_contents (core_bfd, section, readbuf,
(file_ptr) offset, size))
{
warning (_("Couldn't read StackGhost cookie in core file."));
return TARGET_XFER_E_IO;
}
*xfered_len = (ULONGEST) size;
return TARGET_XFER_OK;
}
return TARGET_XFER_E_IO;
case TARGET_OBJECT_LIBRARIES:
if (m_core_gdbarch != nullptr
&& gdbarch_core_xfer_shared_libraries_p (m_core_gdbarch))
{
if (writebuf)
return TARGET_XFER_E_IO;
else
{
*xfered_len = gdbarch_core_xfer_shared_libraries (m_core_gdbarch,
readbuf,
offset, len);
if (*xfered_len == 0)
return TARGET_XFER_EOF;
else
return TARGET_XFER_OK;
}
}
/* FALL THROUGH */
case TARGET_OBJECT_LIBRARIES_AIX:
if (m_core_gdbarch != nullptr
&& gdbarch_core_xfer_shared_libraries_aix_p (m_core_gdbarch))
{
if (writebuf)
return TARGET_XFER_E_IO;
else
{
*xfered_len
= gdbarch_core_xfer_shared_libraries_aix (m_core_gdbarch,
readbuf, offset,
len);
if (*xfered_len == 0)
return TARGET_XFER_EOF;
else
return TARGET_XFER_OK;
}
}
/* FALL THROUGH */
case TARGET_OBJECT_SPU:
if (readbuf && annex)
{
/* When the SPU contexts are stored in a core file, BFD
represents this with a fake section called
"SPU/<annex>". */
struct bfd_section *section;
bfd_size_type size;
char sectionstr[100];
xsnprintf (sectionstr, sizeof sectionstr, "SPU/%s", annex);
section = bfd_get_section_by_name (core_bfd, sectionstr);
if (section == NULL)
return TARGET_XFER_E_IO;
size = bfd_section_size (core_bfd, section);
if (offset >= size)
return TARGET_XFER_EOF;
size -= offset;
if (size > len)
size = len;
if (size == 0)
return TARGET_XFER_EOF;
if (!bfd_get_section_contents (core_bfd, section, readbuf,
(file_ptr) offset, size))
{
warning (_("Couldn't read SPU section in core file."));
return TARGET_XFER_E_IO;
}
*xfered_len = (ULONGEST) size;
return TARGET_XFER_OK;
}
else if (readbuf)
{
/* NULL annex requests list of all present spuids. */
struct spuid_list list;
list.buf = readbuf;
list.offset = offset;
list.len = len;
list.pos = 0;
list.written = 0;
bfd_map_over_sections (core_bfd, add_to_spuid_list, &list);
if (list.written == 0)
return TARGET_XFER_EOF;
else
{
*xfered_len = (ULONGEST) list.written;
return TARGET_XFER_OK;
}
}
return TARGET_XFER_E_IO;
case TARGET_OBJECT_SIGNAL_INFO:
if (readbuf)
{
if (m_core_gdbarch != nullptr
&& gdbarch_core_xfer_siginfo_p (m_core_gdbarch))
{
LONGEST l = gdbarch_core_xfer_siginfo (m_core_gdbarch, readbuf,
offset, len);
if (l >= 0)
{
*xfered_len = l;
if (l == 0)
return TARGET_XFER_EOF;
else
return TARGET_XFER_OK;
}
}
}
return TARGET_XFER_E_IO;
default:
return this->beneath ()->xfer_partial (object, annex, readbuf,
writebuf, offset, len,
xfered_len);
}
}
