gdb/fortran: Use TYPE_CODE_CHAR for character types

Switch to using TYPE_CODE_CHAR for character types.  This appears to
have little impact on the test results as gFortran uses the
DW_TAG_string_type to represent all character variables (as far as I
can see).  The only place this has an impact is when the user casts a
variable to a character type, in which case GDB does now use the CHAR
type, and prints the variable as both a value and a character, for
example, before:

    (gdb) p ((character) 97)
    $1 = 97

and after:

    (gdb) p ((character) 97)
    $1 = 97 'a'

gdb/ChangeLog:

	* f-lang.c (build_fortran_types): Use TYPE_CODE_CHAR for character
	types.

gdb/testsuite/ChangeLog:

	* gdb.fortran/type-kinds.exp: Update expected results.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b0d0edb..e1fdda0 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2019-03-06  Andrew Burgess  <andrew.burgess@embecosm.com>
 
+       * f-lang.c (build_fortran_types): Use TYPE_CODE_CHAR for character
+       types.
+
+2019-03-06  Andrew Burgess  <andrew.burgess@embecosm.com>
+
        * f-exp.y (convert_to_kind_type): Handle integer (kind=8).
        * f-lang.c (build_fortran_types): Setup builtin_integer_s8.
        * f-lang.h (struct builtin_f_type): Add builtin_integer_s8 field.

diff --git a/gdb/f-lang.c b/gdb/f-lang.c
index f27eb0d..c329d60 100644 (file)
--- a/gdb/f-lang.c
+++ b/gdb/f-lang.c
@@ -366,7 +366,7 @@ build_fortran_types (struct gdbarch *gdbarch)
     = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "VOID");
 
   builtin_f_type->builtin_character
-    = arch_integer_type (gdbarch, TARGET_CHAR_BIT, 0, "character");
+    = arch_type (gdbarch, TYPE_CODE_CHAR, TARGET_CHAR_BIT, "character");
 
   builtin_f_type->builtin_logical_s1
     = arch_boolean_type (gdbarch, TARGET_CHAR_BIT, 1, "logical*1");

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index b5599e4..87c491f 100644 (file)
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2019-03-06  Andrew Burgess  <andrew.burgess@embecosm.com>
 
+       * gdb.fortran/type-kinds.exp: Update expected results.
+
+2019-03-06  Andrew Burgess  <andrew.burgess@embecosm.com>
+
        * gdb.fortran/type-kinds.exp: Test new integer type kind.
 
 2019-03-06  Andrew Burgess  <andrew.burgess@embecosm.com>

diff --git a/gdb/testsuite/gdb.fortran/type-kinds.exp b/gdb/testsuite/gdb.fortran/type-kinds.exp
index 198ac58..b5d4e7b 100644 (file)
--- a/gdb/testsuite/gdb.fortran/type-kinds.exp
+++ b/gdb/testsuite/gdb.fortran/type-kinds.exp
@@ -38,7 +38,7 @@ proc test_cast_1_to_type_kind {base_type type_kind cast_result size_result} {
 
 # Test parsing of `(kind=N)` type modifiers.
 proc test_basic_parsing_of_type_kinds {} {
-    test_cast_1_to_type_kind "character" "1" "1" "1"
+    test_cast_1_to_type_kind "character" "1" "1 '\\\\001'" "1"
 
     test_cast_1_to_type_kind "complex" "4" "\\(1,0\\)" "8"
     test_cast_1_to_type_kind "complex" "8" "\\(1,0\\)" "16"