2011-01-24 Pedro Alves <pedro@codesourcery.com>

	Don't lose embedded_offset in printing routines throughout.

	gdb/
	* valprint.h (val_print_array_elements): Change prototype.
	* valprint.c (val_print_array_elements): Add `embedded_offset'
	parameter, and adjust to pass it down to val_print, while passing
	`valaddr' or `address' unmodified.  Take embedded_offset into
	account when checking repetitions.
	* c-valprint.c (c_val_print): Pass embedded_offset to
	val_print_array_elements instead of adjusting `valaddr' and
	`address'.
	* m2-valprint.c (m2_print_array_contents, m2_val_print): Pass
	embedded_offset to val_print_array_elements instead of adjusting
	`valaddr'.
	* p-lang.h (pascal_object_print_value_fields): Adjust prototype.
	* p-valprint.c (pascal_val_print): Pass embedded_offset to
	val_print_array_elements and pascal_object_print_value_fields
	instead of adjusting `valaddr'.
	(pascal_object_print_value_fields): Add `offset' parameter, and
	adjust to use it.
	(pascal_object_print_value): Add `offset' parameter, and adjust to
	use it.
	(pascal_object_print_static_field): Use
	value_contents_for_printing/value_embedded_offset, rather than
	value_contents.
	* ada-valprint.c (val_print_packed_array_elements): Add `offset'
	parameter, and adjust to use it.  Use
	value_contents_for_printing/value_embedded_offset, rather than
	value_contents.
	(ada_val_print): Rename `valaddr0' parameter to `valaddr'.
	(ada_val_print_array): Add `offset' parameter, and adjust to use
	it.
	(ada_val_print_1): Rename `valaddr0' parameter to `valaddr', and
	`embedded_offset' to `offset'.  Don't re-adjust `valaddr'.
	Instead work with offsets.  Use
	value_contents_for_printing/value_embedded_offset, rather than
	value_contents.  Change `defer_val_int' local type to CORE_ADDR,
	and use value_from_pointer to extract a target pointer, rather
	than value_from_longest.
	(print_variant_part): Add `offset' parameter.  Replace
	`outer_valaddr' parameter by a new `outer_offset' parameter.
	Don't re-adjust `valaddr'.  Instead pass down adjusted offsets.
	(ada_value_print): Use
	value_contents_for_printing/value_embedded_offset, rather than
	value_contents.
	(print_record): Add `offset' parameter, and adjust to pass it
	down.
	(print_field_values): Add `offset' parameter.  Replace
	`outer_valaddr' parameter by a new `outer_offset' parameter.
	Don't re-adjust `valaddr'.  Instead pass down adjusted offsets.
	Use value_contents_for_printing/value_embedded_offset, rather than
	value_contents.
	* d-valprint.c (dynamic_array_type): Use
	value_contents_for_printing/value_embedded_offset, rather than
	value_contents.
	* jv-valprint.c (java_print_value_fields): Add `offset' parameter.
	Don't re-adjust `valaddr'.  Instead pass down adjusted offsets.
	(java_print_value_fields): Take `offset' into account.  Don't
	re-adjust `valaddr'.  Instead pass down adjusted offsets.
	(java_val_print): Take `embedded_offset' into account.  Pass it to
	java_print_value_fields.
	* f-valprint.c (f77_print_array_1): Add `embedded_offset'
	parameter.  Don't re-adjust `valaddr' or `address'.  Instead pass
	down adjusted offsets.
	(f77_print_array): Add `embedded_offset' parameter.  Pass it down.
	(f_val_print): Take `embedded_offset' into account.

	gdb/testsuite/
	* gdb.base/printcmds.c (some_struct): New struct and instance.
	* gdb.base/printcmds.exp (test_print_repeats_embedded_array): New
	procedure.
	<global scope>: Call it.

2 files changed, 35 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/printcmds.c b/gdb/testsuite/gdb.base/printcmds.c
index 2d6668a..b3841ae 100644
--- a/gdb/testsuite/gdb.base/printcmds.c
+++ b/gdb/testsuite/gdb.base/printcmds.c
@@ -96,6 +96,28 @@ enum some_volatile_enum { enumvolval1, enumvolval2 };
    name.  See PR11827.  */
 volatile enum some_volatile_enum some_volatile_enum = enumvolval1;
 
+/* A structure with an embedded array at an offset > 0.  The array has
+   all elements with the same repeating value, which must not be the
+   same as the value of the preceding fields in the structure for the
+   test to be effective.  This tests whether GDB uses the correct
+   element content offsets (relative to the complete `some_struct'
+   value) when counting value repetitions.  */
+struct some_struct
+{
+  int a;
+  int b;
+  unsigned char array[20];
+} some_struct = {
+  0x12345678,
+  0x87654321,
+  {
+    0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+    0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+    0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+    0xaa, 0xaa, 0xaa, 0xaa, 0xaa
+  }
+};
+
 /* -- */
 
 int main ()
diff --git a/gdb/testsuite/gdb.base/printcmds.exp b/gdb/testsuite/gdb.base/printcmds.exp
index d3ea9a5..89705ee 100644
--- a/gdb/testsuite/gdb.base/printcmds.exp
+++ b/gdb/testsuite/gdb.base/printcmds.exp
@@ -474,6 +474,18 @@ proc test_print_repeats_10 {} {
     }
 }
 
+# This tests whether GDB uses the correct element content offsets
+# (relative to the complete `some_struct' value) when counting value
+# repetitions.
+
+proc test_print_repeats_embedded_array {} {
+    global gdb_prompt
+
+    gdb_test_escape_braces "p/x some_struct" \
+	"= {a = 0x12345678, b = 0x87654321, array = {0xaa <repeats 20 times>}}" \
+	"correct element repeats in array embedded at offset > 0"
+}
+
 proc test_print_strings {} {
     global gdb_prompt
 
@@ -818,6 +830,7 @@ test_float_rejected
 test_character_literals_accepted
 test_print_all_chars
 test_print_repeats_10
+test_print_repeats_embedded_array
 test_print_strings
 test_print_int_arrays
 test_print_typedef_arrays