From FEDORA_PATCHES Mon Sep 17 00:00:00 2001

From: Fedora GDB patches <invalid@email.com>

Date: Fri, 27 Oct 2017 21:07:50 +0200

Subject: gdb-rhbz795424-bitpos-25of25.patch

;; Fix `GDB cannot access struct member whose offset is larger than 256MB'

;; (RH BZ 795424).

;;=push

http://sourceware.org/ml/gdb-patches/2012-08/msg00562.html

--MP_/90J7bck2fqDySEX9JkZtaqL

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Hi,

Range bounds for a gdb type can have LONGEST values for low and high

bounds. Fortran range bounds functions however use only int. The larger

ranges don't compile by default on gcc, but it is possible to override

the check in the compiler by using -fno-range-check. As a result, this

check is necessary so that we don't print junk in case of an overflow.

Attached patch does this expansion and also includes a test case that

verifies that the problem is fixed. I have also verified on x86_64 that

this patch does not cause any regressions.

Regards,

Siddhesh

gdb/ChangeLog:

	* f-lang.h (f77_get_upperbound): Return LONGEST.

	(f77_get_lowerbound): Likewise.

	* f-typeprint.c (f_type_print_varspec_suffix): Expand

	UPPER_BOUND and LOWER_BOUND to LONGEST.  Use plongest to format

	print them.

	(f_type_print_base): Expand UPPER_BOUND to LONGEST.  Use

	plongest to format print it.

	* f-valprint.c (f77_get_lowerbound): Return LONGEST.

	(f77_get_upperbound): Likewise.

	(f77_get_dynamic_length_of_aggregate): Expand UPPER_BOUND,

	LOWER_BOUND to LONGEST.

	(f77_create_arrayprint_offset_tbl): Likewise.

testsuite/ChangeLog:

	* gdb.fortran/array-bounds.exp: New test case.

	* gdb.fortran/array-bounds.f: New test case.

--MP_/90J7bck2fqDySEX9JkZtaqL

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diff --git a/gdb/f-lang.h b/gdb/f-lang.h

--- a/gdb/f-lang.h

+++ b/gdb/f-lang.h

@@ -47,9 +47,9 @@ struct common_block

   struct symbol *contents[1];

 };

-extern int f77_get_upperbound (struct type *);

+extern LONGEST f77_get_upperbound (struct type *);

-extern int f77_get_lowerbound (struct type *);

+extern LONGEST f77_get_lowerbound (struct type *);

 extern void f77_get_dynamic_array_length (struct type *);

diff --git a/gdb/f-typeprint.c b/gdb/f-typeprint.c

--- a/gdb/f-typeprint.c

+++ b/gdb/f-typeprint.c

@@ -149,7 +149,7 @@ f_type_print_varspec_suffix (struct type *type, struct ui_file *stream,

 			     int show, int passed_a_ptr, int demangled_args,

 			     int arrayprint_recurse_level, int print_rank_only)

 {

-  int upper_bound, lower_bound;

+  LONGEST upper_bound, lower_bound;

   /* No static variables are permitted as an error call may occur during

      execution of this function.  */

@@ -196,7 +196,7 @@ f_type_print_varspec_suffix (struct type *type, struct ui_file *stream,

 	{

 	  lower_bound = f77_get_lowerbound (type);

 	  if (lower_bound != 1)	/* Not the default.  */

-	    fprintf_filtered (stream, "%d:", lower_bound);

+	    fprintf_filtered (stream, "%s:", plongest (lower_bound));

 	  /* Make sure that, if we have an assumed size array, we

 	       print out a warning and print the upperbound as '*'.  */

@@ -206,7 +206,7 @@ f_type_print_varspec_suffix (struct type *type, struct ui_file *stream,

 	  else

 	    {

 	      upper_bound = f77_get_upperbound (type);

-	      fprintf_filtered (stream, "%d", upper_bound);

+	      fprintf_filtered (stream, "%s", plongest (upper_bound));

 	    }

 	}

@@ -278,7 +278,7 @@ void

 f_type_print_base (struct type *type, struct ui_file *stream, int show,

 		   int level)

 {

-  int upper_bound;

+  LONGEST upper_bound;

   int index;

   QUIT;

@@ -370,7 +370,7 @@ f_type_print_base (struct type *type, struct ui_file *stream, int show,

       else

 	{

 	  upper_bound = f77_get_upperbound (type);

-	  fprintf_filtered (stream, "character*%d", upper_bound);

+	  fprintf_filtered (stream, "character*%s", plongest (upper_bound));

 	}

       break;

diff --git a/gdb/f-valprint.c b/gdb/f-valprint.c

--- a/gdb/f-valprint.c

+++ b/gdb/f-valprint.c

@@ -41,7 +41,7 @@ LONGEST f77_array_offset_tbl[MAX_FORTRAN_DIMS + 1][2];

 /* Array which holds offsets to be applied to get a row's elements

    for a given array.  Array also holds the size of each subarray.  */

-int

+LONGEST

 f77_get_lowerbound (struct type *type)

 {

   if (TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type))

@@ -50,7 +50,7 @@ f77_get_lowerbound (struct type *type)

   return TYPE_ARRAY_LOWER_BOUND_VALUE (type);

 }

-int

+LONGEST

 f77_get_upperbound (struct type *type)

 {

   if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))