mirrors/binutils-gdb
0
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-12-14 12:53:34 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Remove MAX_REGISTER_SIZE from regcache.c

Browse Source 
gdb/
	* regcache.c (regcache::save): Avoid buffer use.
	(regcache::dump): Likewise.
This commit is contained in:
Alan Hayward 2017-06-07 10:16:46 +01:00
parent 4a8a33c843
commit 50d6adef3b
2 changed files with 41 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2017-06-07 Alan Hayward <alan.hayward@arm.com>
* regcache.c (regcache::save): Avoid buffer use.
(regcache::dump): Likewise.
2017-06-07 Alan Hayward <alan.hayward@arm.com>
* sh-tdep.c (sh_pseudo_register_read): Remove

51
gdb/regcache.c
View File

@ -328,7 +328,6 @@ regcache::save (regcache_cooked_read_ftype *cooked_read,
void *src)
{
struct gdbarch *gdbarch = m_descr->gdbarch;
gdb_byte buf[MAX_REGISTER_SIZE];
int regnum;
/* The DST should be `read-only', if it wasn't then the save would
@ -346,18 +345,14 @@ regcache::save (regcache_cooked_read_ftype *cooked_read,
{
if (gdbarch_register_reggroup_p (gdbarch, regnum, save_reggroup))
{
enum register_status status = cooked_read (src, regnum, buf);
gdb_byte *dst_buf = register_buffer (regnum);
enum register_status status = cooked_read (src, regnum, dst_buf);
if (status == REG_VALID)
memcpy (register_buffer (regnum), buf,
register_size (gdbarch, regnum));
else
{
gdb_assert (status != REG_UNKNOWN);
gdb_assert (status != REG_UNKNOWN);
if (status != REG_VALID)
memset (dst_buf, 0, register_size (gdbarch, regnum));
memset (register_buffer (regnum), 0,
register_size (gdbarch, regnum));
}
m_register_status[regnum] = status;
}
}
@ -1471,7 +1466,6 @@ regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump)
int footnote_register_offset = 0;
int footnote_register_type_name_null = 0;
long register_offset = 0;
gdb_byte buf[MAX_REGISTER_SIZE];
#if 0
fprintf_unfiltered (file, "nr_raw_registers %d\n",
@ -1597,8 +1591,8 @@ regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump)
fprintf_unfiltered (file, "<unavailable>");
else
{
raw_read (regnum, buf);
print_hex_chars (file, buf,
raw_update (regnum);
print_hex_chars (file, register_buffer (regnum),
m_descr->sizeof_register[regnum],
gdbarch_byte_order (gdbarch));
}
@ -1611,9 +1605,30 @@ regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump)
fprintf_unfiltered (file, "Cooked value");
else
{
const gdb_byte *buf = NULL;
enum register_status status;
struct value *value = NULL;
if (regnum < m_descr->nr_raw_registers)
{
raw_update (regnum);
status = get_register_status (regnum);
buf = register_buffer (regnum);
}
else
{
value = cooked_read_value (regnum);
if (!value_optimized_out (value)
&& value_entirely_available (value))
{
status = REG_VALID;
buf = value_contents_all (value);
}
else
status = REG_UNAVAILABLE;
}
status = cooked_read (regnum, buf);
if (status == REG_UNKNOWN)
fprintf_unfiltered (file, "<invalid>");
else if (status == REG_UNAVAILABLE)
@ -1622,6 +1637,12 @@ regcache::dump (ui_file *file, enum regcache_dump_what what_to_dump)
print_hex_chars (file, buf,
m_descr->sizeof_register[regnum],
gdbarch_byte_order (gdbarch));
if (value != NULL)
{
release_value (value);
value_free (value);
}
}
}