gdb-rhbz795424-bitpos-23of25.patch

;; Fix `GDB cannot access struct member whose offset is larger than 256MB'
;; (RH BZ 795424).
;;=push

http://sourceware.org/ml/gdb-patches/2012-09/msg00630.html

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Hi,

This is the last part of the bitpos change.  This patch does the same
thing that patch 1/4 does, except that it does so in the *-tdep files
wherever necessary.  I separated these changes mainly because they are
related and can be reviewed independently.  Tested on Fedora 16 x86_64.

Regards,
Siddhesh

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gdb/ChangeLog

	* alpha-tdep.c (alpha_push_dummy_call): Expand ACCUMULATE_SIZE,
	REQUIRED_ARG_REGS, OFFSET, LEN, TLEN to ssize_t.
	(struct alpha_arg): Expand members LEN, OFFSET to ssize_t.
	* amd64-tdep.c (amd64_push_arguments): Expand NUM_ELEMENTS,
	ELEMENT and LEN to LONGEST.
	(amd64_return_value): Expand LEN to LONGEST.
	* amd64-windows-tdep.c (amd64_windows_return_value): Expand LEN
	to LONGEST.
	* arm-tdep.c (arm_vfp_cprc_sub_candidate): Return LONGEST.
	Expand COUNT, SUB_COUNT to LONGEST.
	(arm_vfp_call_candidate): Expand C to LONGEST.
	(arm_push_dummy_call): Expand LEN to LONGEST.
	* avr-tdep.c (struct stack_item): Expand member LEN to ssize_t.
	(push_stack_item): Expand parameter LEN to ssize_t.
	(avr_push_dummy_call): Expand LAST_REGNUM, J, LEN to ssize_t.
	* bfin-tdep.c (bfin_push_dummy_call): Expand TOTAL_LEN,
	CONTAINER_LEN to ssize_t.
	* cris-tdep.c (struct stack_item): Expand member LEN to ssize_t.
	(push_stack_item): Expand parameter LEN to ssize_t.
	(cris_push_dummy_call): Expand LEN, REG_DEMAND, I to ssize_t.
	* h8300-tdep.c (h8300_push_dummy_call): Expand STACK_ALLOC,
	STACK_OFFSET to LONGEST.  Expand LEN, PADDED_LEN, OFFSET to
	ssize_t.
	* hppa-tdep.c (hppa64_push_dummy_call): Expand LEN to LONGEST.
	(hppa64_return_value): Likewise.
	* i386-darwin-tdep.c (i386_darwin_push_dummy_call): Expand
	ARGS_SPACE to LONGEST.
	* i386-tdep.c (i386_push_dummy_call): Expand ARG_SPACE,
	ARG_SPACE_USED, LEN to LONGEST.
	(i386_reg_struct_return_p): Expand LEN to LONGEST.
	(i386_convert_register_p): Likewise.
	(i386_register_to_value): Likewise.
	(i386_value_to_register): Likewise.
	* ia64-tdep.c (ia64_push_dummy_call): Expand ARGOFFSET, LEN,
	NSLOTS, MEMSLOTS to LONGEST.
	* iq2000-tdep.c (iq2000_push_dummy_call): Expand TYPELEN,
	STACKSPACE to LONGEST.
	* m32r-tdep.c (m32r_push_dummy_call): Expand LEN to LONGEST.
	* m68k-tdep.c (m68k_reg_struct_return_p): Expand LEN to LONGEST.
	(m68k_push_dummy_call): Expand LEN, CONTAINER_LEN, OFFSET to
	LONGEST.
	* m88k-tdep.c (m88k_store_arguments): Expand NUM_STACK_WORDS,
	LEN, STACK_WORD to LONGEST.
	* mep-tdep.c (push_large_arguments): Expand ARG_LEN to ULONGEST.
	* microblaze-tdep.c (microblaze_store_return_value): Expand LEN to
	LONGEST.
	* mips-tdep.c (mips_xfer_register): Expand parameter BUF_OFFSET to
	LONGEST.  Use plongest to format print BUF_OFFSET.
	(mips_eabi_push_dummy_call): Expand LEN to LONGEST.  Use plongest
	to format print LEN.
	(mips_n32n64_fp_arg_chunk_p): Expand parameter OFFSET to LONGEST.
	Expand POS to LONGEST.
	(mips_n32n64_push_dummy_call): Expand LEN to LONGEST.
	(mips_n32n64_return_value): Expand OFFSET to LONGEST.  Use
	plongest to format print OFFSET.
	(mips_o32_push_dummy_call): Expand LEN to LONGEST.  Use plongest
	to format print LEN.
	(mips_o64_push_dummy_call): Expand LEN, STACK_OFFSET to LONGEST.
	Use plongest to format print LEN.
	* mn10300-tdep.c (mn10300_push_dummy_call): Expand LEN to
	LONGEST.
	* mt-tdep.c (mt_push_dummy_call): Expand STACK_DEST, TYPELEN to
	LONGEST.
	* ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call): Expand
	ARGSPACE, ARGOFFSET, STRUCTOFFSET, LEN, to LONGEST.
	(ppc64_sysv_abi_push_dummy_call): Expand BYTE, LEN to ssize_t.
	* rl78-tdep.c (rl78_push_dummy_call): Expand LEN, CONTAINER_LEN
	to LONGEST.
	* rs6000-aix-tdep.c (rs6000_push_dummy_call): Expand ARGBYTES,
	LEN to LONGEST.
	(ran_out_of_registers_for_arguments): Expand SPACE, JJ to
	LONGEST.
	* s390-linux-tdep.c (s390_value_from_register): Expand LEN to LONGEST.
	(is_power_of_two): Expand parameter N to ULONGEST.
	(s390_push_dummy_call): Expand LENGTH to ULONGEST.
	* score-tdep.c (score_push_dummy_call): Expand ARGLEN to
	LONGEST.
	* sh-tdep.c (sh_use_struct_convention) Expand len to LONGEST.
	(sh_justify_value_in_reg): Expand parameter LEN to LONGEST.
	(sh_push_dummy_call_fpu): Expand LEN to LONGEST.  Expand REG_SIZE
	to ssize_t.
	(sh_push_dummy_call_nofpu): Likewise.
	* sh64-tdep.c (sh64_push_dummy_call): Expand STACK_OFFSET,
	STACK_ALLOC, LEN to LONGEST.
	* sparc-tdep.c (sparc32_store_arguments): Expand LEN to LONGEST.
	* sparc64-tdep.c (sparc64_store_floating_fields): Expand
	parameter BITPOS to LONGEST.  Expand SUBPOS to LONGEST.
	(sparc64_extract_floating_fields): Likewise.
	(sparc64_store_arguments): Expand LEN to LONGEST.
	* spu-tdep.c (spu_push_dummy_call): Expand N_REGS, LEN to LONGEST.
	(spu_value_from_register): Expand LEN to LONGEST.
	* tic6x-tdep.c (tic6x_push_dummy_call): Expand REFERENCES_OFFST,
	LEN to LONGEST.  Expand LEN to ssize_t.  Use plongest to format
	print LEN.
	* tilegx-tdep.c (tilegx_push_dummy_call): Expand TYPELEN,
	SLACKLEN, ALIGNLEN to LONGEST.
	* v850-tdep.c (v850_push_dummy_call): Expand LEN to LONGEST.
	* vax-tdep.c (vax_store_arguments): Expand COUNT, LEN to LONGEST.
	(vax_return_value): Expand LEN to LONGEST.
	* xstormy16-tdep.c (xstormy16_push_dummy_call): Expand J, TYPELEN
	to LONGEST.
	* xtensa-tdep.c (xtensa_store_return_value): Print LEN instead of
	TYPE_LENGTH..
	(struct argument_info): Expoand member LENGTH to ssize_t.
	(struct argument_info.u): Expand member OFFSET to ssize_t.
	(xtensa_push_dummy_call): Expand SIZE, ONSTACK_SIZE to LONGEST.
	Expand N to ssize_t.  Use pulongest to format print TYPE_LENGTH.

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Author: ivanivanov884

gdb/alpha-tdep.c

@@ -300,17 +300,17 @@ alpha_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int i;
-  int accumulate_size = (return_method == return_method_struct) ? 8 : 0;
+  ssize_t accumulate_size = (return_method == return_method_struct) ? 8 : 0;
   struct alpha_arg
     {
       const gdb_byte *contents;
-      int len;
-      int offset;
+      ssize_t len;
+      ssize_t offset;
     };
   struct alpha_arg *alpha_args = XALLOCAVEC (struct alpha_arg, nargs);
   struct alpha_arg *m_arg;
   gdb_byte arg_reg_buffer[ALPHA_REGISTER_SIZE * ALPHA_NUM_ARG_REGS];
-  int required_arg_regs;
+  ssize_t required_arg_regs;
   CORE_ADDR func_addr = find_function_addr (function, NULL);
 
   /* The ABI places the address of the called function in T12.  */
@@ -430,8 +430,8 @@ alpha_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   for (i = nargs; m_arg--, --i >= 0;)
     {
       const gdb_byte *contents = m_arg->contents;
-      int offset = m_arg->offset;
-      int len = m_arg->len;
+      ssize_t offset = m_arg->offset;
+      ssize_t len = m_arg->len;
 
       /* Copy the bytes destined for registers into arg_reg_buffer.  */
       if (offset < sizeof(arg_reg_buffer))
@@ -443,7 +443,7 @@ alpha_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 	    }
 	  else
 	    {
-	      int tlen = sizeof(arg_reg_buffer) - offset;
+	      ssize_t tlen = sizeof(arg_reg_buffer) - offset;
 	      memcpy (arg_reg_buffer + offset, contents, tlen);
 	      offset += tlen;
 	      contents += tlen;

gdb/amd64-tdep.c

@@ -905,8 +905,8 @@ amd64_push_arguments (struct regcache *regcache, int nargs, struct value **args,
   };
   struct value **stack_args = XALLOCAVEC (struct value *, nargs);
   int num_stack_args = 0;
-  int num_elements = 0;
-  int element = 0;
+  LONGEST num_elements = 0;
+  LONGEST element = 0;
   int integer_reg = 0;
   int sse_reg = 0;
   int i;
@@ -918,7 +918,7 @@ if (return_method == return_method_struct)
   for (i = 0; i < nargs; i++)
     {
       struct type *type = value_type (args[i]);
-      int len = TYPE_LENGTH (type);
+      LONGEST len = TYPE_LENGTH (type);
       enum amd64_reg_class theclass[2];
       int needed_integer_regs = 0;
       int needed_sse_regs = 0;
@@ -982,7 +982,7 @@ if (return_method == return_method_struct)
 
 	      gdb_assert (regnum != -1);
 	      memset (buf, 0, sizeof buf);
-	      memcpy (buf, valbuf + j * 8, std::min (len, 8));
+	      memcpy (buf, valbuf + j * 8, std::min (len, (LONGEST) 8));
 	      regcache->raw_write_part (regnum, offset, 8, buf);
 	    }
 	}

gdb/amd64-windows-tdep.c

@@ -291,7 +291,7 @@ amd64_windows_return_value (struct gdbarch *gdbarch, struct value *function,
 			    struct type *type, struct regcache *regcache,
 			    gdb_byte *readbuf, const gdb_byte *writebuf)
 {
-  int len = TYPE_LENGTH (type);
+  LONGEST len = TYPE_LENGTH (type);
   int regnum = -1;
 
   /* See if our value is returned through a register.  If it is, then

gdb/arm-tdep.c

@@ -3440,7 +3440,7 @@ arm_vfp_cprc_reg_char (enum arm_vfp_cprc_base_type b)
    array).  Vector types are not currently supported, matching the
    generic AAPCS support.  */
 
-static int
+static LONGEST
 arm_vfp_cprc_sub_candidate (struct type *t,
 			    enum arm_vfp_cprc_base_type *base_type)
 {
@@ -3523,7 +3523,7 @@ arm_vfp_cprc_sub_candidate (struct type *t,
 	  }
 	else
 	  {
-	    int count;
+	    LONGEST count;
 	    unsigned unitlen;
 
 	    count = arm_vfp_cprc_sub_candidate (TYPE_TARGET_TYPE (t),
@@ -3546,12 +3546,12 @@ arm_vfp_cprc_sub_candidate (struct type *t,
 
     case TYPE_CODE_STRUCT:
       {
-	int count = 0;
+	LONGEST count = 0;
 	unsigned unitlen;
 	int i;
 	for (i = 0; i < TYPE_NFIELDS (t); i++)
 	  {
-	    int sub_count = 0;
+	    LONGEST sub_count = 0;
 
 	    if (!field_is_static (&TYPE_FIELD (t, i)))
 	      sub_count = arm_vfp_cprc_sub_candidate (TYPE_FIELD_TYPE (t, i),
@@ -3575,13 +3575,15 @@ arm_vfp_cprc_sub_candidate (struct type *t,
 
     case TYPE_CODE_UNION:
       {
-	int count = 0;
+	LONGEST count = 0;
 	unsigned unitlen;
 	int i;
 	for (i = 0; i < TYPE_NFIELDS (t); i++)
 	  {
-	    int sub_count = arm_vfp_cprc_sub_candidate (TYPE_FIELD_TYPE (t, i),
-							base_type);
+	    LONGEST sub_count;
+
+	    sub_count = arm_vfp_cprc_sub_candidate (TYPE_FIELD_TYPE (t, i),
+						    base_type);
 	    if (sub_count == -1)
 	      return -1;
 	    count = (count > sub_count ? count : sub_count);
@@ -3617,7 +3619,7 @@ arm_vfp_call_candidate (struct type *t, enum arm_vfp_cprc_base_type *base_type,
 			int *count)
 {
   enum arm_vfp_cprc_base_type b = VFP_CPRC_UNKNOWN;
-  int c = arm_vfp_cprc_sub_candidate (t, &b);
+  LONGEST c = arm_vfp_cprc_sub_candidate (t, &b);
   if (c <= 0 || c > 4)
     return 0;
   *base_type = b;
@@ -3699,7 +3701,7 @@ arm_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   for (argnum = 0; argnum < nargs; argnum++)
     {
-      int len;
+      LONGEST len;
       struct type *arg_type;
       struct type *target_type;
       enum type_code typecode;

gdb/avr-tdep.c

@@ -1192,13 +1192,13 @@ avr_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
 
 struct stack_item
 {
-  int len;
+  ssize_t len;
   struct stack_item *prev;
   gdb_byte *data;
 };
 
 static struct stack_item *
-push_stack_item (struct stack_item *prev, const bfd_byte *contents, int len)
+push_stack_item (struct stack_item *prev, const bfd_byte *contents, ssize_t len)
 {
   struct stack_item *si;
   si = XNEW (struct stack_item);
@@ -1287,12 +1287,12 @@ avr_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   for (i = 0; i < nargs; i++)
     {
-      int last_regnum;
-      int j;
+      ssize_t last_regnum;
+      ssize_t j;
       struct value *arg = args[i];
       struct type *type = check_typedef (value_type (arg));
       const bfd_byte *contents = value_contents (arg);
-      int len = TYPE_LENGTH (type);
+      ssize_t len = TYPE_LENGTH (type);
 
       /* Calculate the potential last register needed.
          E.g. For length 2, registers regnum and regnum-1 (say 25 and 24)

gdb/bfin-tdep.c

@@ -504,7 +504,7 @@ bfin_push_dummy_call (struct gdbarch *gdbarch,
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int i;
   long reg_r0, reg_r1, reg_r2;
-  int total_len = 0;
+  ssize_t total_len = 0;
 
   for (i = nargs - 1; i >= 0; i--)
     {
@@ -526,7 +526,7 @@ bfin_push_dummy_call (struct gdbarch *gdbarch,
     {
       struct type *value_type = value_enclosing_type (args[i]);
       struct type *arg_type = check_typedef (value_type);
-      int container_len = (TYPE_LENGTH (arg_type) + 3) & ~3;
+      ssize_t container_len = (TYPE_LENGTH (arg_type) + 3) & ~3;
 
       sp -= container_len;
       write_memory (sp, value_contents (args[i]), container_len);

gdb/cris-tdep.c

@@ -657,13 +657,13 @@ static CORE_ADDR crisv32_scan_prologue (CORE_ADDR pc,
 
 struct stack_item
 {
-  int len;
+  ssize_t len;
   struct stack_item *prev;
   gdb_byte *data;
 };
 
 static struct stack_item *
-push_stack_item (struct stack_item *prev, const gdb_byte *contents, int len)
+push_stack_item (struct stack_item *prev, const gdb_byte *contents, ssize_t len)
 {
   struct stack_item *si = XNEW (struct stack_item);
   si->data = (gdb_byte *) xmalloc (len);
@@ -814,13 +814,13 @@ cris_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   for (argnum = 0; argnum < nargs; argnum++)
     {
-      int len;
+      ssize_t len;
       const gdb_byte *val;
-      int reg_demand;
-      int i;
+      ssize_t reg_demand;
+      ssize_t i;
 
-      len = TYPE_LENGTH (value_type (args[argnum]));
       val = value_contents (args[argnum]);
+      len = TYPE_LENGTH (value_type (args[argnum]));
 
       /* How may registers worth of storage do we need for this argument?  */
       reg_demand = (len / 4) + (len % 4 != 0 ? 1 : 0);

gdb/h8300-tdep.c

@@ -619,7 +619,7 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 		       CORE_ADDR struct_addr)
 {
   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
-  int stack_alloc = 0, stack_offset = 0;
+  LONGEST stack_alloc = 0, stack_offset = 0;
   int wordsize = BINWORD (gdbarch);
   int reg = E_ARG0_REGNUM;
   int argument;
@@ -645,11 +645,11 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   for (argument = 0; argument < nargs; argument++)
     {
       struct type *type = value_type (args[argument]);
-      int len = TYPE_LENGTH (type);
+      ssize_t len = TYPE_LENGTH (type);
       char *contents = (char *) value_contents (args[argument]);
 
       /* Pad the argument appropriately.  */
-      int padded_len = align_up (len, wordsize);
+      ssize_t padded_len = align_up (len, wordsize);
       /* Use std::vector here to get zero initialization.  */
       std::vector<gdb_byte> padded (padded_len);
 
@@ -678,7 +678,7 @@ h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 	      /* Heavens to Betsy --- it's really going in registers!
 	         Note that on the h8/300s, there are gaps between the
 	         registers in the register file.  */
-	      int offset;
+	      ssize_t offset;
 
 	      for (offset = 0; offset < padded_len; offset += wordsize)
 		{

gdb/hppa-tdep.c

@@ -985,7 +985,7 @@ hppa64_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
     {
       struct value *arg = args[i];
       struct type *type = value_type (arg);
-      int len = TYPE_LENGTH (type);
+      LONGEST len = TYPE_LENGTH (type);
       const bfd_byte *valbuf;
       bfd_byte fptrbuf[8];
       int regnum;
@@ -1178,7 +1178,7 @@ hppa64_return_value (struct gdbarch *gdbarch, struct value *function,
 		     struct type *type, struct regcache *regcache,
 		     gdb_byte *readbuf, const gdb_byte *writebuf)
 {
-  int len = TYPE_LENGTH (type);
+  LONGEST len = TYPE_LENGTH (type);
   int regnum, offset;
 
   if (len > 16)

gdb/i386-darwin-tdep.c

@@ -167,7 +167,7 @@ i386_darwin_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
 
   for (write_pass = 0; write_pass < 2; write_pass++)
     {
-      int args_space = 0;
+      LONGEST args_space = 0;
       int num_m128 = 0;
 
       if (return_method == return_method_struct)