gdb/testsuite/gdb.base/ctf-ptype.exp

# Copyright 2019-2021 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This file is a subset of ptype.exp written by Rob Savoye. (rob@cygnus.com)

if [skip_ctf_tests] {
    unsupported "no CTF debug format support, or CTF disabled in GDB"
    return 0
}

standard_testfile .c

# Using `-gctf` generates full-fledged CTF debug information.
set opts "additional_flags=-gctf"

if { [prepare_for_testing "failed to prepare" ${testfile} \
	  [list $srcfile] [list $opts nowarnings]] } {
    return 0
}

# Create and source the file that provides information about the compiler
# used to compile the test case.
if [get_compiler_info] {
    return -1
}

# Test ptype of unnamed enumeration members before any action causes
# the partial symbol table to be expanded to full symbols.  This fails
# with stabs compilers which fail to use a nameless stab (such as
# pre-2.4.5 versions of gcc and most non-gcc compilers).

gdb_test_multiple "ptype red1" "ptype unnamed enumeration member" {
    -re "type = enum primary1_tag \{red1, green1, blue1\}.*$gdb_prompt $" {
	# The workaround is in effect.  As this is a compiler, not GDB,
	# bug, we'll make it a PASS but perhaps it should be an XFAIL.
	pass "ptype unnamed enumeration member (worked around)"
    }
    -re "type = enum \{red1, green1, blue1\}.*$gdb_prompt $" {
	pass "ptype unnamed enumeration member"
    }
}

#
# test ptype command with structures
#
# Here and elsewhere, we accept
# "long", "long int", or "int" for long variables (whatis.exp already
# has an XFAIL for "int" (Sun cc bug), so no need to fail it here).
gdb_test "ptype struct t_struct" "type = struct t_struct \{.*\[\r\n\]    (unsigned |)char v_char_member;.*\[\r\n\]    (short|short int) v_short_member;.*\[\r\n\]    int v_int_member;.*\[\r\n\]    (long|long int|int) v_long_member;.*\[\r\n\]    float v_float_member;.*\[\r\n\]    double v_double_member;.*\[\r\n\]\}.*" "ptype structure"


# Test the equivalence between '.' and '->' for struct member references.

if [gdb_test "ptype v_struct1.v_float_member"	"type = float"]<0 then {
    return -1
}
if [gdb_test "ptype v_struct1->v_float_member"	"type = float"]<0 then {
    return -1
}
if [gdb_test "ptype v_t_struct_p.v_float_member"	"type = float"]<0 then {
    return -1
}
if [gdb_test "ptype v_t_struct_p->v_float_member"	"type = float"]<0 then {
    return -1
}

gdb_test "ptype struct link" "type = struct link \{\[\r\n\]+\[ \t\]+struct link \\*next;\[\r\n\]+\[ \t\]+struct link \\*\\(\\*linkfunc\\)\\((struct link \\*, int|void|)\\);\[\r\n\]+\[ \t\]+struct t_struct stuff.3.;\[\r\n\]+\}.*" "ptype linked list structure"

#
# test ptype command with unions
#
gdb_test "ptype union t_union" "type = union t_union \{.*\[\r\n\]    (unsigned |)char v_char_member;.*\[\r\n\]    (short|short int) v_short_member;.*\[\r\n\]    int v_int_member;.*\[\r\n\]    (long|long int|int) v_long_member;.*\[\r\n\]    float v_float_member;.*\[\r\n\]    double v_double_member;.*\[\r\n\]\}.*" "ptype union"

#
# test ptype command with enums
#

gdb_test "ptype primary" "type = enum .red, green, blue.*" "ptype unnamed enumeration"

gdb_test "ptype enum colors" "type = enum colors \{yellow, purple, pink\}.*" "ptype named enumeration"


#
# test ptype command with enums as typedef
#
gdb_test "ptype boolean" "type = enum (boolean |)\{FALSE, TRUE\}.*" "ptype unnamed typedef'd enumeration"

gdb_test "list -q main" ".*"

# Same thing with struct and union.
gdb_test "ptype t_struct3" "type = struct (t_struct3 |)\{.*
 *double v_double_member;.*
 *int v_int_member;.*\}" "printing typedef'd struct"

gdb_test "ptype t_union3" "type = union (t_union3 |)\{.*
 *double v_double_member;.*
 *int v_int_member;.*\}" "printing typedef'd union"

gdb_test "ptype enum bvals" "type = enum bvals \{my_false, my_true\}.*" "ptype named typedef'd enumf'd enum"

#
# test ptype command with out-of-order enum values
#
gdb_test "ptype enum misordered" "type = enum misordered \{two = 2, one = 1, zero = 0, three = 3\}.*" "ptype misordered enumeration"

#
# test ptype command with a named enum's value
#
gdb_test "ptype three" "type = enum misordered \{two = 2, one = 1, zero = 0, three = 3\}.*" "ptype named enumeration member"

gdb_test "ptype red" "type = enum \{red, green, blue\}.*" "ptype unnamed enumeration member #2"

#
# test ptype command with arrays
#
gdb_test "ptype v_char_array" "type = char .2..*" "ptype char array"

gdb_test "ptype v_signed_char_array" "type = (|signed )char .2..*" "ptype signed char array"

gdb_test "ptype v_unsigned_char_array" "type = unsigned char .2..*" "ptype unsigned char array"

gdb_test "ptype v_int_array" "type = int .2..*" "ptype int array"

gdb_test "ptype v_signed_int_array" "type = int .2..*" "ptype signed int array"

gdb_test "ptype v_unsigned_int_array" "type = unsigned int .2..*" "ptype unsigned int array"

gdb_test "ptype v_long_array" "type = (long|int|long int) .2..*" "ptype long array"

gdb_test "ptype v_signed_long_array" "type = (long|int|long int) .2..*" "ptype signed long array"

gdb_test "ptype v_unsigned_long_array" "type = unsigned long .2..*" "ptype unsigned long array"

gdb_test "ptype v_float_array" "type = float .2..*" "ptype float array"

gdb_test "ptype v_double_array" "type = double .2..*" "ptype double array"

gdb_test "ptype pv_char_array" "type = (|unsigned )char \\(\\*\\)\\\[0?\\\]"

#
# test ptype command with pointers
#
gdb_test "ptype v_char_pointer" "type = char \*.*" "ptype char pointer"

gdb_test "ptype v_short_pointer" "type = short \*.*" "ptype short pointer"

gdb_test "ptype v_long_pointer" "type = long \*.*" "ptype long pointer"

gdb_test "ptype v_int_pointer" "type = int \*.*" "ptype int pointer"

gdb_test "ptype v_signed_long_pointer" "type = long \*.*" "ptype signed long pointer"

gdb_test "ptype v_unsigned_long_pointer" "type = unsigned long \*.*" "ptype unsigned long pointer"

gdb_test "ptype v_float_pointer" "type = float \*.*" "ptype float pointer"

gdb_test "ptype v_double_pointer" "type = double \*.*" "ptype double pointer"

#
# test ptype command with basic C types
#
gdb_test "ptype v_short" "type = short(| int).*" "ptype short"

gdb_test "ptype v_int" "type = int.*" "ptype int"

#
# test ptype command with nested structure and union
#
gdb_test "ptype struct outer_struct" "type = struct outer_struct \{.*\[\r\n\]+\
.*int outer_int;.*\[\r\n\]+\
.*(struct|) inner_struct inner_struct_instance;.*\[\r\n\]+\
.*(union|) inner_union inner_union_instance;.*\[\r\n\]+\
.*(long|long int|int) outer_long;.*\[\r\n\]\}.*" "ptype outer structure"

gdb_test "ptype struct inner_struct" "type = struct inner_struct \{.*\[\r\n\]    int inner_int;.*\[\r\n\]    (long|long int|int) inner_long;.*\[\r\n\]\}.*" "ptype inner structure"

gdb_test "ptype union inner_union" "type = union inner_union \{.*\[\r\n\]    int inner_union_int;.*\[\r\n\]    (long|long int|int) inner_union_long;.*\[\r\n\]\}.*" "ptype inner union"

gdb_test "ptype nested_su" "type = struct outer_struct \{.*\[\r\n\]    int outer_int;.*\[\r\n\]    (struct |)inner_struct inner_struct_instance;.*\[\r\n\]    (union |)inner_union inner_union_instance;.*\[\r\n\]    (long|long int|int) outer_long;.*\[\r\n\]\}.*" "ptype nested structure"

gdb_test "ptype nested_su.outer_int" "type = int.*" "ptype outer int"

gdb_test "ptype nested_su.inner_struct_instance" "type = struct inner_struct \{.*\[\r\n\]    int inner_int;.*\[\r\n\]    (long|long int|int) inner_long;.*\[\r\n\]\}.*" "ptype nested structure #2"

gdb_test "ptype nested_su.inner_struct_instance.inner_int" "type = int.*" "ptype inner int"

gdb_test "ptype nested_su.inner_union_instance" "type = union inner_union \{.*\[\r\n\]    int inner_union_int;.*\[\r\n\]    (long|long int|int) inner_union_long;.*\[\r\n\]\}.*" "ptype nested union"

# Print the type description of variable the_highest, and verify that
# the type description for the fields whose type is anonymous are
# correctly printed (at nesting level 1 and 2).

gdb_test "ptype the_highest" \
         "type = struct highest \{.*\[\r\n\] *int a;.*\[\r\n\] *struct \{.*\[\r\n\] *int b;.*\[\r\n\] *struct \{\.\.\.\} anonymous_level_2;.*\[\r\n\] *\} anonymous_level_1;.*\[\r\n\]}.*" \
         "ptype the_highest"

# Print the type descrption for one of the fields of variable the_highest.
# The purpose is to verify that the type of a field that was printed above
# as "struct {...}" is now printed in a more descriptive way (because the
# nesting level is now one level less).

gdb_test "ptype the_highest.anonymous_level_1" \
         "type = struct \{.*\[\r\n\] *int b;.*\[\r\n\] *struct \{.*\[\r\n\] *int c;.*\[\r\n\] *\} anonymous_level_2;.*\[\r\n\]}.*" \
         "ptype the_highest.anonymous_level_1"

# Print the type of the identifier ID, and check the response:
# - Expect to see PROTOTYPED as the type.  PROTOTYPED is not a regular
#   expression; it's a literal string.
# - If we instead see the unprototyped type PLAIN, and we're using STABS
#   generated by GCC, that's an xfail; as of 9 Feb 2002, GCC never emits
#   prototyped function types in STABS.  Like PROTOTYPED, PLAIN is a
#   literal string, not a regular expression.
# - If we see OVERPROTOTYPED, it's an xfail for RealView; RealView
#   does not distinguish prototyped and unprototyped functions, and
#   GDB defaults to prototyped.
# - Otherwise, it's a failure.
proc ptype_maybe_prototyped { id prototyped plain { overprototyped "NO-MATCH" } } {
    global gdb_prompt
    global gcc_compiled

    # Turn the arguments, which are literal strings, into
    # regular expressions by quoting any special characters they contain.
    foreach var { prototyped plain overprototyped } {
	eval "set val \$$var"
	regsub -all "\[\]\[*()\]" $val "\\\\&" val
	regsub -all "short int" $val "short( int)?" val
	regsub -all "long int" $val "long( int)?" val
	eval "set $var \$val"
    }

    gdb_test_multiple "ptype $id" "ptype $id" {
        -re "type = $prototyped\[\r\n\]+$gdb_prompt $" {
            pass "ptype $id"
        }
        -re "type = $plain\[\r\n\]+$gdb_prompt $" {
            if {$gcc_compiled} { setup_xfail_format "stabs" }
            fail "ptype $id (compiler doesn't emit prototyped types)"
        }
        -re "type = $overprototyped\[\r\n\]+$gdb_prompt $" {
            if { [test_compiler_info "armcc-*"] } {
		setup_xfail "*-*-*"
	    }
            fail "ptype $id (compiler doesn't emit unprototyped types)"
        }
    }
}

ptype_maybe_prototyped "func_type" "int (*)(int (*)(int, float), float)" \
                                   "int (*)()"
ptype_maybe_prototyped "old_fptr" "double (*)()" "double (*)()" \
                                  "double (*)(void)"
ptype_maybe_prototyped "new_fptr" "double (*)()" "double (*)()"
ptype_maybe_prototyped "fptr" "int (*)(int, float)" "int (*)()"
ptype_maybe_prototyped "fptr2" "int *(*)(int (*)(int, float), float)" \
                               "int *(*)()"
ptype_maybe_prototyped "xptr" "int (*)(int (*)(), int (*)(), int)" \
                              "int (*)()" \
                              "int (*)(int (*)(void), int (*)(void), int)"
ptype_maybe_prototyped "ffptr" "int (*(*)(char))(short int)" \
                               "int (*(*)())()"
ptype_maybe_prototyped "fffptr" "int (*(*(*)(char))(short int))(long int)" \
                                "int (*(*(*)())())()"

# Test printing type of string constants and array constants, but
# requires a running process.  These call malloc, and can take a long
# time to execute over a slow serial link, so increase the timeout.

if [runto_main] then {

  if [target_info exists gdb,cannot_call_functions] {
    unsupported "this target can not call functions"
    continue
  }

  # We need to up this because this can be really slow on some boards.
  # (malloc() is called as part of the test).
  set prev_timeout $timeout
  set timeout 60

  gdb_test "ptype \"abc\""	"type = char \\\[4\\\]"
  gdb_test "ptype {'a','b','c'}"	"type = char \\\[3\\\]"
  gdb_test "ptype {0,1,2}"		"type = int \\\[3\\\]"
  gdb_test "ptype {(long)0,(long)1,(long)2}"	  "type = long \\\[3\\\]"
  gdb_test "ptype {(float)0,(float)1,(float)2}" "type = float \\\[3\\\]"
  gdb_test "ptype {{0,1,2},{3,4,5}}"	"type = int \\\[2\\\]\\\[3\\\]"
  gdb_test "ptype {4,5,6}\[2\]"	"type = int"
  gdb_test "ptype *&{4,5,6}\[1\]"	"Attempt to take address of value not located in memory."

  set timeout $prev_timeout

  # Test ptype of user register
  gdb_test "ptype \$pc" "void \\(\\*\\)\\(\\)" "ptype \$pc"
}