+2017-06-14 Nick Clifton <nickc@redhat.com>
+
+ PR binutils/21587
+ * rx-decode.opc: Include libiberty.h
+ (GET_SCALE): New macro - validates access to SCALE array.
+ (GET_PSCALE): New macro - validates access to PSCALE array.
+ (DIs, SIs, S2Is, rx_disp): Use new macros.
+ * rx-decode.c: Regenerate.
+
2017-07-14 Andre Vieira <andre.simoesdiasvieira@arm.com>
* arm-dis.c (print_insn_arm): Remove bogus entry for bx.
#include <string.h>
#include "ansidecl.h"
#include "opcode/rx.h"
+#include "libiberty.h"
#define RX_OPCODE_BIG_ENDIAN 0
#define LSIZE 2
/* These are for when the upper bits are "don't care" or "undefined". */
-static int bwl[] =
+static int bwl[4] =
{
RX_Byte,
RX_Word,
RX_Bad_Size /* Bogus instructions can have a size field set to 3. */
};
-static int sbwl[] =
+static int sbwl[4] =
{
RX_SByte,
RX_SWord,
RX_Bad_Size /* Bogus instructions can have a size field set to 3. */
};
-static int ubw[] =
+static int ubw[4] =
{
RX_UByte,
RX_UWord,
RX_Bad_Size /* Bogus instructions can have a size field set to 3. */
};
-static int memex[] =
+static int memex[4] =
{
RX_SByte,
RX_SWord,
/* This is for the prefix size enum. */
static int PSCALE[] = { 4, 1, 1, 1, 2, 2, 2, 3, 4 };
+#define GET_SCALE(_indx) ((unsigned)(_indx) < ARRAY_SIZE (SCALE) ? SCALE[(_indx)] : 0)
+#define GET_PSCALE(_indx) ((unsigned)(_indx) < ARRAY_SIZE (PSCALE) ? PSCALE[(_indx)] : 0)
+
static int flagmap[] = {0, 1, 2, 3, 0, 0, 0, 0,
16, 17, 0, 0, 0, 0, 0, 0 };
#define DC(c) OP (0, RX_Operand_Immediate, 0, c)
#define DR(r) OP (0, RX_Operand_Register, r, 0)
#define DI(r,a) OP (0, RX_Operand_Indirect, r, a)
-#define DIs(r,a,s) OP (0, RX_Operand_Indirect, r, (a) * SCALE[s])
+#define DIs(r,a,s) OP (0, RX_Operand_Indirect, r, (a) * GET_SCALE (s))
#define DD(t,r,s) rx_disp (0, t, r, bwl[s], ld);
#define DF(r) OP (0, RX_Operand_Flag, flagmap[r], 0)
#define SR(r) OP (1, RX_Operand_Register, r, 0)
#define SRR(r) OP (1, RX_Operand_TwoReg, r, 0)
#define SI(r,a) OP (1, RX_Operand_Indirect, r, a)
-#define SIs(r,a,s) OP (1, RX_Operand_Indirect, r, (a) * SCALE[s])
+#define SIs(r,a,s) OP (1, RX_Operand_Indirect, r, (a) * GET_SCALE (s))
#define SD(t,r,s) rx_disp (1, t, r, bwl[s], ld);
#define SP(t,r) rx_disp (1, t, r, (t!=3) ? RX_UByte : RX_Long, ld); P(t, 1);
#define SPm(t,r,m) rx_disp (1, t, r, memex[m], ld); rx->op[1].size = memex[m];
#define S2C(i) OP (2, RX_Operand_Immediate, 0, i)
#define S2R(r) OP (2, RX_Operand_Register, r, 0)
#define S2I(r,a) OP (2, RX_Operand_Indirect, r, a)
-#define S2Is(r,a,s) OP (2, RX_Operand_Indirect, r, (a) * SCALE[s])
+#define S2Is(r,a,s) OP (2, RX_Operand_Indirect, r, (a) * GET_SCALE (s))
#define S2D(t,r,s) rx_disp (2, t, r, bwl[s], ld);
#define S2P(t,r) rx_disp (2, t, r, (t!=3) ? RX_UByte : RX_Long, ld); P(t, 2);
#define S2Pm(t,r,m) rx_disp (2, t, r, memex[m], ld); rx->op[2].size = memex[m];
}
static void
-rx_disp (int n, int type, int reg, int size, LocalData * ld)
+rx_disp (int n, int type, int reg, unsigned int size, LocalData * ld)
{
int disp;
case 1:
ld->rx->op[n].type = RX_Operand_Indirect;
disp = GETBYTE ();
- ld->rx->op[n].addend = disp * PSCALE[size];
+ ld->rx->op[n].addend = disp * GET_PSCALE (size);
break;
case 2:
ld->rx->op[n].type = RX_Operand_Indirect;
#else
disp = disp + GETBYTE () * 256;
#endif
- ld->rx->op[n].addend = disp * PSCALE[size];
+ ld->rx->op[n].addend = disp * GET_PSCALE (size);
break;
default:
abort ();
#include <string.h>
#include "ansidecl.h"
#include "opcode/rx.h"
+#include "libiberty.h"
#define RX_OPCODE_BIG_ENDIAN 0
#define LSIZE 2
/* These are for when the upper bits are "don't care" or "undefined". */
-static int bwl[] =
+static int bwl[4] =
{
RX_Byte,
RX_Word,
RX_Bad_Size /* Bogus instructions can have a size field set to 3. */
};
-static int sbwl[] =
+static int sbwl[4] =
{
RX_SByte,
RX_SWord,
RX_Bad_Size /* Bogus instructions can have a size field set to 3. */
};
-static int ubw[] =
+static int ubw[4] =
{
RX_UByte,
RX_UWord,
RX_Bad_Size /* Bogus instructions can have a size field set to 3. */
};
-static int memex[] =
+static int memex[4] =
{
RX_SByte,
RX_SWord,
/* This is for the prefix size enum. */
static int PSCALE[] = { 4, 1, 1, 1, 2, 2, 2, 3, 4 };
+#define GET_SCALE(_indx) ((unsigned)(_indx) < ARRAY_SIZE (SCALE) ? SCALE[(_indx)] : 0)
+#define GET_PSCALE(_indx) ((unsigned)(_indx) < ARRAY_SIZE (PSCALE) ? PSCALE[(_indx)] : 0)
+
static int flagmap[] = {0, 1, 2, 3, 0, 0, 0, 0,
16, 17, 0, 0, 0, 0, 0, 0 };
#define DC(c) OP (0, RX_Operand_Immediate, 0, c)
#define DR(r) OP (0, RX_Operand_Register, r, 0)
#define DI(r,a) OP (0, RX_Operand_Indirect, r, a)
-#define DIs(r,a,s) OP (0, RX_Operand_Indirect, r, (a) * SCALE[s])
+#define DIs(r,a,s) OP (0, RX_Operand_Indirect, r, (a) * GET_SCALE (s))
#define DD(t,r,s) rx_disp (0, t, r, bwl[s], ld);
#define DF(r) OP (0, RX_Operand_Flag, flagmap[r], 0)
#define SR(r) OP (1, RX_Operand_Register, r, 0)
#define SRR(r) OP (1, RX_Operand_TwoReg, r, 0)
#define SI(r,a) OP (1, RX_Operand_Indirect, r, a)
-#define SIs(r,a,s) OP (1, RX_Operand_Indirect, r, (a) * SCALE[s])
+#define SIs(r,a,s) OP (1, RX_Operand_Indirect, r, (a) * GET_SCALE (s))
#define SD(t,r,s) rx_disp (1, t, r, bwl[s], ld);
#define SP(t,r) rx_disp (1, t, r, (t!=3) ? RX_UByte : RX_Long, ld); P(t, 1);
#define SPm(t,r,m) rx_disp (1, t, r, memex[m], ld); rx->op[1].size = memex[m];
#define S2C(i) OP (2, RX_Operand_Immediate, 0, i)
#define S2R(r) OP (2, RX_Operand_Register, r, 0)
#define S2I(r,a) OP (2, RX_Operand_Indirect, r, a)
-#define S2Is(r,a,s) OP (2, RX_Operand_Indirect, r, (a) * SCALE[s])
+#define S2Is(r,a,s) OP (2, RX_Operand_Indirect, r, (a) * GET_SCALE (s))
#define S2D(t,r,s) rx_disp (2, t, r, bwl[s], ld);
#define S2P(t,r) rx_disp (2, t, r, (t!=3) ? RX_UByte : RX_Long, ld); P(t, 2);
#define S2Pm(t,r,m) rx_disp (2, t, r, memex[m], ld); rx->op[2].size = memex[m];
}
static void
-rx_disp (int n, int type, int reg, int size, LocalData * ld)
+rx_disp (int n, int type, int reg, unsigned int size, LocalData * ld)
{
int disp;
case 1:
ld->rx->op[n].type = RX_Operand_Indirect;
disp = GETBYTE ();
- ld->rx->op[n].addend = disp * PSCALE[size];
+ ld->rx->op[n].addend = disp * GET_PSCALE (size);
break;
case 2:
ld->rx->op[n].type = RX_Operand_Indirect;
#else
disp = disp + GETBYTE () * 256;
#endif
- ld->rx->op[n].addend = disp * PSCALE[size];
+ ld->rx->op[n].addend = disp * GET_PSCALE (size);
break;
default:
abort ();