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Fix broken GDB build after adding Bound table support for i386. 

Types used for some variables could not be used for 32 bits, causing a
compilation failure.
This patch adds a cast to force a quite compilation, but at the same
time it bails out in the case that the cast performed is not safe, i.e.
in the case where the debuggee is 64bit and debugger is 32bit.

Documentation was also affected, once a different version of texinfo the
docs could not be build.

2015-06-10  Walfred Tedeschi  <walfred.tedeschi@intel.com>

	* i386-tdep.c (i386_mpx_get_bt_entry): Add a cast for mpx_bd_mask
	and bt_mask to CORE_ADDR.

doc:
	* gdb.textinfo (i386): Fix "@end table" end and "@table" placement.
This commit is contained in:
Walfred Tedeschi 2015-06-12 09:42:16 +02:00
parent 5c4f4e4a8a
commit 966f0aefa6
4 changed files with 17 additions and 2 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2015-06-10 Walfred Tedeschi <walfred.tedeschi@intel.com>
* i386-tdep.c (i386_mpx_get_bt_entry): Add a cast for mpx_bd_mask
and bt_mask to CORE_ADDR.
2015-06-11 Gary Benson <gbenson@redhat.com>
* nat/linux-namespaces.c (mnsh_send_message): Use pulongest.

5
gdb/doc/ChangeLog
View File

@ -1,3 +1,8 @@
2015-06-10 Walfred Tedeschi <walfred.tedeschi@intel.com>
* gdb.textinfo (i386): Fix "@end table" end and "@table" placement.
2015-06-10 Gary Benson <gbenson@redhat.com>
* gdb.texinfo (Remote Configuration): Document the

2
gdb/doc/gdb.texinfo
View File

@ -22131,6 +22131,7 @@ be returned in a register.
@kindex show struct-convention
Show the current setting of the convention to return @code{struct}s
from functions.
@end table
@subsubsection Intel(R) @dfn{Memory Protection Extensions} (MPX).
@ -22172,6 +22173,7 @@ the bounds pointer's value along with its bounds. Evaluating and changing
bounds located in bound tables is therefore interesting while investigating
bugs on MPX context. @value{GDBN} provides commands for this purpose:
@table @code
@item show mpx bound @var{pointer}
@kindex show mpx bound
Display bounds of the given @var{pointer}.

7
gdb/i386-tdep.c
View File

@ -8678,12 +8678,15 @@ i386_mpx_get_bt_entry (CORE_ADDR ptr, CORE_ADDR bd_base)
if (gdbarch_ptr_bit (gdbarch) == 64)
{
mpx_bd_mask = MPX_BD_MASK;
mpx_bd_mask = (CORE_ADDR) MPX_BD_MASK;
bd_ptr_r_shift = 20;
bd_ptr_l_shift = 3;
bt_select_r_shift = 3;
bt_select_l_shift = 5;
bt_mask = MPX_BT_MASK;
bt_mask = (CORE_ADDR) MPX_BT_MASK;
if ( sizeof (CORE_ADDR) == 4)
error (_("operation not supported"));
}
else
{