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2010-03-09 Michael Snyder <msnyder@vmware.com>
authorMichael Snyder <msnyder@vmware.com>
Tue, 9 Mar 2010 18:25:41 +0000 (18:25 +0000)
committerMichael Snyder <msnyder@vmware.com>
Tue, 9 Mar 2010 18:25:41 +0000 (18:25 +0000)
* i386-tdep.c (i386_record_lea_modrm_addr): Use extract_signed_int
after target_read_memory to get host byte order.
(i386_process_record): Ditto.

gdb/ChangeLog patch | blob | history
gdb/i386-tdep.c patch | blob | history

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d8a8914..e917cd4 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2010-03-09  Michael Snyder  <msnyder@vmware.com>
+
+       * i386-tdep.c (i386_record_lea_modrm_addr): Use extract_signed_int
+       after target_read_memory to get host byte order.
+       (i386_process_record): Ditto.
+
 2010-03-09  Keith Seitz  <keiths@redhat.com>
 
        Based on work from Daniel Jacobowitz  <dan@codesourcery.com>
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 115bcb9..f386237 100644 (file)
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -2948,10 +2948,9 @@ static int
 i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
 {
   struct gdbarch *gdbarch = irp->gdbarch;
-  int8_t  addr8;
-  int16_t addr16;
-  int32_t addr32;
-  ULONGEST addr64;
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  gdb_byte buf[4];
+  ULONGEST offset64;
 
   *addr = 0;
   if (irp->aflag)
@@ -2987,7 +2986,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
          if ((base & 7) == 5)
            {
              base = 0xff;
-             if (target_read_memory (irp->addr, (gdb_byte *) &addr32, 4))
+             if (target_read_memory (irp->addr, buf, 4))
                {
                  if (record_debug)
                    printf_unfiltered (_("Process record: error reading "
@@ -2996,7 +2995,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
                  return -1;
                }
              irp->addr += 4;
-             *addr = addr32;
+             *addr = extract_signed_integer (buf, 4, byte_order);
              if (irp->regmap[X86_RECORD_R8_REGNUM] && !havesib)
                *addr += irp->addr + irp->rip_offset;
            }
@@ -3006,7 +3005,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
            }
          break;
        case 1:
-         if (target_read_memory (irp->addr, &addr8, 1))
+         if (target_read_memory (irp->addr, buf, 1))
            {
              if (record_debug)
                printf_unfiltered (_("Process record: error reading memory "
@@ -3015,10 +3014,10 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
              return -1;
            }
          irp->addr++;
-         *addr = addr8;
+         *addr = (int8_t) buf[0];
          break;
        case 2:
-         if (target_read_memory (irp->addr, (gdb_byte *) &addr32, 4))
+         if (target_read_memory (irp->addr, buf, 4))
            {
              if (record_debug)
                printf_unfiltered (_("Process record: error reading memory "
@@ -3026,34 +3025,34 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
                                   paddress (gdbarch, irp->addr));
              return -1;
            }
-         *addr = addr32;
+         *addr = extract_signed_integer (buf, 4, byte_order);
          irp->addr += 4;
          break;
        }
 
-      addr64 = 0;
+      offset64 = 0;
       if (base != 0xff)
         {
          if (base == 4 && irp->popl_esp_hack)
            *addr += irp->popl_esp_hack;
          regcache_raw_read_unsigned (irp->regcache, irp->regmap[base],
-                                      &addr64);
+                                      &offset64);
        }
       if (irp->aflag == 2)
         {
-         *addr += addr64;
+         *addr += offset64;
         }
       else
-        *addr = (uint32_t) (addr64 + *addr);
+        *addr = (uint32_t) (offset64 + *addr);
 
       if (havesib && (index != 4 || scale != 0))
        {
          regcache_raw_read_unsigned (irp->regcache, irp->regmap[index],
-                                      &addr64);
+                                      &offset64);
          if (irp->aflag == 2)
-           *addr += addr64 << scale;
+           *addr += offset64 << scale;
          else
-           *addr = (uint32_t) (*addr + (addr64 << scale));
+           *addr = (uint32_t) (*addr + (offset64 << scale));
        }
     }
   else
@@ -3064,7 +3063,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
        case 0:
          if (irp->rm == 6)
            {
-             if (target_read_memory (irp->addr, (gdb_byte *) &addr16, 2))
+             if (target_read_memory (irp->addr, buf, 2))
                {
                  if (record_debug)
                    printf_unfiltered (_("Process record: error reading "
@@ -3073,7 +3072,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
                  return -1;
                }
              irp->addr += 2;
-             *addr = addr16;
+             *addr = extract_signed_integer (buf, 2, byte_order);
              irp->rm = 0;
              goto no_rm;
            }
@@ -3083,7 +3082,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
            }
          break;
        case 1:
-         if (target_read_memory (irp->addr, &addr8, 1))
+         if (target_read_memory (irp->addr, buf, 1))
            {
              if (record_debug)
                printf_unfiltered (_("Process record: error reading memory "
@@ -3092,10 +3091,10 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
              return -1;
            }
          irp->addr++;
-         *addr = addr8;
+         *addr = (int8_t) buf[0];
          break;
        case 2:
-         if (target_read_memory (irp->addr, (gdb_byte *) &addr16, 2))
+         if (target_read_memory (irp->addr, buf, 2))
            {
              if (record_debug)
                printf_unfiltered (_("Process record: error reading memory "
@@ -3104,7 +3103,7 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
              return -1;
            }
          irp->addr += 2;
-         *addr = addr16;
+         *addr = extract_signed_integer (buf, 2, byte_order);
          break;
        }
 
@@ -3113,66 +3112,66 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
        case 0:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REBX_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_RESI_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 1:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REBX_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REDI_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 2:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REBP_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_RESI_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 3:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REBP_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REDI_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 4:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_RESI_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 5:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REDI_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 6:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REBP_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        case 7:
          regcache_raw_read_unsigned (irp->regcache,
                                      irp->regmap[X86_RECORD_REBX_REGNUM],
-                                      &addr64);
-         *addr = (uint32_t) (*addr + addr64);
+                                      &offset64);
+         *addr = (uint32_t) (*addr + offset64);
          break;
        }
       *addr &= 0xffff;
@@ -3309,11 +3308,13 @@ int
 i386_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
                     CORE_ADDR input_addr)
 {
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int prefixes = 0;
   int regnum = 0;
   uint32_t opcode;
   uint8_t  opcode8;
   ULONGEST addr;
+  gdb_byte buf[MAX_REGISTER_SIZE];
   struct i386_record_s ir;
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
   int rex = 0;
@@ -4100,9 +4101,7 @@ i386_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
            ir.ot = ir.dflag + OT_WORD;
          if (ir.aflag == 2)
            {
-             uint64_t addr64;
-
-              if (target_read_memory (ir.addr, (gdb_byte *) &addr64, 8))
+              if (target_read_memory (ir.addr, buf, 8))
                {
                  if (record_debug)
                    printf_unfiltered (_("Process record: error reading "
@@ -4111,13 +4110,11 @@ i386_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
                  return -1;
                }
              ir.addr += 8;
-             addr = addr64;
+             addr = extract_unsigned_integer (buf, 8, byte_order);
            }
           else if (ir.aflag)
            {
-             uint32_t addr32;
-
-              if (target_read_memory (ir.addr, (gdb_byte *) &addr32, 4))
+              if (target_read_memory (ir.addr, buf, 4))
                {
                  if (record_debug)
                    printf_unfiltered (_("Process record: error reading "
@@ -4126,13 +4123,11 @@ i386_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
                  return -1;
                }
              ir.addr += 4;
-              addr = addr32;
+              addr = extract_unsigned_integer (buf, 4, byte_order);
            }
           else
            {
-             uint16_t addr16;
-
-              if (target_read_memory (ir.addr, (gdb_byte *) &addr16, 2))
+              if (target_read_memory (ir.addr, buf, 2))
                {
                  if (record_debug)
                    printf_unfiltered (_("Process record: error reading "
@@ -4141,7 +4136,7 @@ i386_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
                  return -1;
                }
              ir.addr += 2;
-              addr = addr16;
+              addr = extract_unsigned_integer (buf, 2, byte_order);
            }
          if (record_arch_list_add_mem (addr, 1 << ir.ot))
            return -1;
Domain: System / Toolchain;