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[PR gdb/25939] Move push_target call earlier in procfs.c
[deliverable/binutils-gdb.git]
/
binutils
/
unwind-ia64.c
diff --git
a/binutils/unwind-ia64.c
b/binutils/unwind-ia64.c
index 73550ddccaec0ce5f5c42662a33e7b53f93749e8..b9eae5bb21d468873a932bf86e257a906662415e 100644
(file)
--- a/
binutils/unwind-ia64.c
+++ b/
binutils/unwind-ia64.c
@@
-1,5
+1,5
@@
/* unwind-ia64.c -- utility routines to dump IA-64 unwind info for readelf.
/* unwind-ia64.c -- utility routines to dump IA-64 unwind info for readelf.
- Copyright (C) 2000-20
19
Free Software Foundation, Inc.
+ Copyright (C) 2000-20
20
Free Software Foundation, Inc.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
@@
-21,9
+21,8
@@
MA 02110-1301, USA. */
#include "config.h"
MA 02110-1301, USA. */
#include "config.h"
+#include "sysdep.h"
#include "unwind-ia64.h"
#include "unwind-ia64.h"
-#include <stdio.h>
-#include <string.h>
#if __GNUC__ >= 2
/* Define BFD64 here, even if our default architecture is 32 bit ELF
#if __GNUC__ >= 2
/* Define BFD64 here, even if our default architecture is 32 bit ELF
@@
-174,7
+173,7
@@
unw_print_xyreg (char *cp, unsigned int x, unsigned int ytreg)
typedef bfd_vma unw_word;
#define UNW_DEC_BAD_CODE(code) \
typedef bfd_vma unw_word;
#define UNW_DEC_BAD_CODE(code) \
-
printf ("Unknown code 0x%02x\n"
, code)
+
printf (_("Unknown code 0x%02x\n")
, code)
#define UNW_DEC_PROLOGUE(fmt, body, rlen, arg) \
do \
#define UNW_DEC_PROLOGUE(fmt, body, rlen, arg) \
do \
@@
-360,7
+359,7
@@
typedef bfd_vma unw_word;
/* PR 18420. */ \
if ((dp + (unw_rlen / 4)) > end) \
{ \
/* PR 18420. */ \
if ((dp + (unw_rlen / 4)) > end) \
{ \
- printf (
"\nERROR: unwind length too long (0x%lx > 0x%lx)\n\n",
\
+ printf (
_("\nERROR: unwind length too long (0x%lx > 0x%lx)\n\n"),
\
(long) (unw_rlen / 4), (long)(end - dp)); \
/* FIXME: Should we reset unw_rlen ? */ \
break; \
(long) (unw_rlen / 4), (long)(end - dp)); \
/* FIXME: Should we reset unw_rlen ? */ \
break; \
@@
-545,21
+544,34
@@
static unw_word
unw_decode_uleb128 (const unsigned char **dpp, const unsigned char * end)
{
unsigned shift = 0;
unw_decode_uleb128 (const unsigned char **dpp, const unsigned char * end)
{
unsigned shift = 0;
+ int status = 1;
unw_word byte, result = 0;
const unsigned char *bp = *dpp;
while (bp < end)
{
byte = *bp++;
unw_word byte, result = 0;
const unsigned char *bp = *dpp;
while (bp < end)
{
byte = *bp++;
- result |= (byte & 0x7f) << shift;
+ if (shift < sizeof (result) * 8)
+ {
+ result |= (byte & 0x7f) << shift;
+ if ((result >> shift) != (byte & 0x7f))
+ /* Overflow. */
+ status |= 2;
+ shift += 7;
+ }
+ else if ((byte & 0x7f) != 0)
+ status |= 2;
if ((byte & 0x80) == 0)
if ((byte & 0x80) == 0)
- break;
-
- shift += 7;
+ {
+ status &= ~1;
+ break;
+ }
}
*dpp = bp;
}
*dpp = bp;
+ if (status != 0)
+ printf (_("Bad uleb128\n"));
return result;
}
return result;
}
@@
-571,6
+583,12
@@
unw_decode_x1 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
unsigned char byte1, abreg;
unw_word t, off;
unsigned char byte1, abreg;
unw_word t, off;
+ if ((end - dp) < 3)
+ {
+ printf (_("\t<corrupt X1>\n"));
+ return end;
+ }
+
byte1 = *dp++;
t = unw_decode_uleb128 (&dp, end);
off = unw_decode_uleb128 (&dp, end);
byte1 = *dp++;
t = unw_decode_uleb128 (&dp, end);
off = unw_decode_uleb128 (&dp, end);
@@
-589,6
+607,12
@@
unw_decode_x2 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
unsigned char byte1, byte2, abreg, x, ytreg;
unw_word t;
unsigned char byte1, byte2, abreg, x, ytreg;
unw_word t;
+ if ((end - dp) < 3)
+ {
+ printf (_("\t<corrupt X2>\n"));
+ return end;
+ }
+
byte1 = *dp++;
byte2 = *dp++;
t = unw_decode_uleb128 (&dp, end);
byte1 = *dp++;
byte2 = *dp++;
t = unw_decode_uleb128 (&dp, end);
@@
-609,6
+633,12
@@
unw_decode_x3 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
unsigned char byte1, byte2, abreg, qp;
unw_word t, off;
unsigned char byte1, byte2, abreg, qp;
unw_word t, off;
+ if ((end - dp) < 4)
+ {
+ printf (_("\t<corrupt X3>\n"));
+ return end;
+ }
+
byte1 = *dp++;
byte2 = *dp++;
t = unw_decode_uleb128 (&dp, end);
byte1 = *dp++;
byte2 = *dp++;
t = unw_decode_uleb128 (&dp, end);
@@
-631,6
+661,12
@@
unw_decode_x4 (const unsigned char *dp, unsigned int code ATTRIBUTE_UNUSED,
unsigned char byte1, byte2, byte3, qp, abreg, x, ytreg;
unw_word t;
unsigned char byte1, byte2, byte3, qp, abreg, x, ytreg;
unw_word t;
+ if ((end - dp) < 4)
+ {
+ printf (_("\t<corrupt X4>\n"));
+ return end;
+ }
+
byte1 = *dp++;
byte2 = *dp++;
byte3 = *dp++;
byte1 = *dp++;
byte2 = *dp++;
byte3 = *dp++;
@@
-667,6
+703,12
@@
unw_decode_r2 (const unsigned char *dp, unsigned int code, void *arg,
unsigned char byte1, mask, grsave;
unw_word rlen;
unsigned char byte1, mask, grsave;
unw_word rlen;
+ if ((end - dp) < 2)
+ {
+ printf (_("\t<corrupt R2>\n"));
+ return end;
+ }
+
byte1 = *dp++;
mask = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
byte1 = *dp++;
mask = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
@@
-705,14
+747,30
@@
unw_decode_p2_p5 (const unsigned char *dp, unsigned int code,
{
if ((code & 0x10) == 0)
{
{
if ((code & 0x10) == 0)
{
- unsigned char byte1 = *dp++;
+ unsigned char byte1;
+
+ if ((end - dp) < 1)
+ {
+ printf (_("\t<corrupt P2>\n"));
+ return end;
+ }
+
+ byte1 = *dp++;
UNW_DEC_BR_GR ("P2", ((code & 0xf) << 1) | ((byte1 >> 7) & 1),
(byte1 & 0x7f), arg);
}
else if ((code & 0x08) == 0)
{
UNW_DEC_BR_GR ("P2", ((code & 0xf) << 1) | ((byte1 >> 7) & 1),
(byte1 & 0x7f), arg);
}
else if ((code & 0x08) == 0)
{
- unsigned char byte1 = *dp++, r, dst;
+ unsigned char byte1, r, dst;
+
+ if ((end - dp) < 1)
+ {
+ printf (_("\t<corrupt P3>\n"));
+ return end;
+ }
+
+ byte1 = *dp++;
r = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
dst = (byte1 & 0x7f);
r = ((code & 0x7) << 1) | ((byte1 >> 7) & 1);
dst = (byte1 & 0x7f);
@@
-765,6
+823,11
@@
unw_decode_p2_p5 (const unsigned char *dp, unsigned int code,
{
unw_word grmask, frmask, byte1, byte2, byte3;
{
unw_word grmask, frmask, byte1, byte2, byte3;
+ if ((end - dp) < 3)
+ {
+ printf (_("\t<corrupt P5>\n"));
+ return end;
+ }
byte1 = *dp++;
byte2 = *dp++;
byte3 = *dp++;
byte1 = *dp++;
byte2 = *dp++;
byte3 = *dp++;
@@
-867,6
+930,12
@@
unw_decode_p7_p10 (const unsigned char *dp, unsigned int code, void *arg,
{
case 0x0: /* p8 */
{
{
case 0x0: /* p8 */
{
+ if ((end - dp) < 2)
+ {
+ printf (_("\t<corrupt P8>\n"));
+ return end;
+ }
+
r = *dp++;
t = unw_decode_uleb128 (&dp, end);
switch (r)
r = *dp++;
t = unw_decode_uleb128 (&dp, end);
switch (r)
@@
-936,12
+1005,24
@@
unw_decode_p7_p10 (const unsigned char *dp, unsigned int code, void *arg,
break;
case 0x1:
break;
case 0x1:
+ if ((end - dp) < 2)
+ {
+ printf (_("\t<corrupt P9>\n"));
+ return end;
+ }
+
byte1 = *dp++;
byte2 = *dp++;
UNW_DEC_GR_GR ("P9", (byte1 & 0xf), (byte2 & 0x7f), arg);
break;
case 0xf: /* p10 */
byte1 = *dp++;
byte2 = *dp++;
UNW_DEC_GR_GR ("P9", (byte1 & 0xf), (byte2 & 0x7f), arg);
break;
case 0xf: /* p10 */
+ if ((end - dp) < 2)
+ {
+ printf (_("\t<corrupt P10>\n"));
+ return end;
+ }
+
byte1 = *dp++;
byte2 = *dp++;
UNW_DEC_ABI ("P10", byte1, byte2, arg);
byte1 = *dp++;
byte2 = *dp++;
UNW_DEC_ABI ("P10", byte1, byte2, arg);
@@
-1067,6
+1148,12
@@
unw_decode (const unsigned char *dp, int inside_body,
unw_decoder decoder;
unsigned char code;
unw_decoder decoder;
unsigned char code;
+ if ((end - dp) < 1)
+ {
+ printf (_("\t<corrupt IA64 descriptor>\n"));
+ return end;
+ }
+
code = *dp++;
decoder = unw_decode_table[inside_body][code >> 5];
return (*decoder) (dp, code, ptr_inside_body, end);
code = *dp++;
decoder = unw_decode_table[inside_body][code >> 5];
return (*decoder) (dp, code, ptr_inside_body, end);
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