503 lines
16 KiB
Plaintext
503 lines
16 KiB
Plaintext
# This test code is part of GDB, the GNU debugger.
|
|
|
|
# Copyright 2003-2013 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/>.
|
|
|
|
# Auxiliary function to check for known problems.
|
|
#
|
|
# EXPECTED_STRING is the string expected by the test.
|
|
#
|
|
# ACTUAL_STRING is the actual string output by gdb.
|
|
#
|
|
# ERRATA_TABLE is a list of lines of the form:
|
|
#
|
|
# { expected-string broken-string {eval-block} }
|
|
#
|
|
# If there is a line for the given EXPECTED_STRING, and if the
|
|
# ACTUAL_STRING output by gdb is the same as the BROKEN_STRING in the
|
|
# table, then I eval the eval-block.
|
|
|
|
proc cp_check_errata { expected_string actual_string errata_table } {
|
|
foreach erratum $errata_table {
|
|
if { "$expected_string" == [lindex $erratum 0]
|
|
&& "$actual_string" == [lindex $erratum 1] } then {
|
|
eval [lindex $erratum 2]
|
|
}
|
|
}
|
|
}
|
|
|
|
# Test ptype of a class.
|
|
#
|
|
# Different C++ compilers produce different output. To accommodate all
|
|
# the variations listed below, I read the output of "ptype" and process
|
|
# each line, matching it to the class description given in the
|
|
# parameters.
|
|
#
|
|
# IN_EXP is the expression to use; the appropriate "ptype" invocation
|
|
# is prepended to it. IN_TESTNAME is the testname for
|
|
# gdb_test_multiple. If IN_TESTNAME is the empty string, then it
|
|
# defaults to "ptype IN_EXP".
|
|
#
|
|
# IN_KEY is "class" or "struct". For now, I ignore it, and allow either
|
|
# "class" or "struct" in the output, as long as the access specifiers all
|
|
# work out okay.
|
|
#
|
|
# IN_TAG is the class tag or structure tag.
|
|
#
|
|
# IN_CLASS_TABLE is a list of class information. Each entry contains a
|
|
# keyword and some values. The keywords and their values are:
|
|
#
|
|
# { base "base-declaration" }
|
|
#
|
|
# the class has a base with the given declaration.
|
|
#
|
|
# { vbase "name" }
|
|
#
|
|
# the class has a virtual base pointer with the given name. this
|
|
# is for gcc 2.95.3, which emits ptype entries for the virtual base
|
|
# pointers. the vbase list includes both indirect and direct
|
|
# virtual base classes (indeed, a virtual base is usually
|
|
# indirect), so this information cannot be derived from the base
|
|
# declarations.
|
|
#
|
|
# { field "access" "declaration" }
|
|
#
|
|
# the class has a data field with the given access type and the
|
|
# given declaration.
|
|
#
|
|
# { method "access" "declaration" }
|
|
#
|
|
# the class has a member function with the given access type
|
|
# and the given declaration.
|
|
#
|
|
# { typedef "access" "declaration" }
|
|
#
|
|
# the class has a typedef with the given access type and the
|
|
# given declaration.
|
|
#
|
|
# If you test the same class declaration more than once, you can specify
|
|
# IN_CLASS_TABLE as "ibid". "ibid" means: look for a previous class
|
|
# table that had the same IN_KEY and IN_TAG, and re-use that table.
|
|
#
|
|
# IN_TAIL is the expected text after the close brace, specifically the "*"
|
|
# in "struct { ... } *". This is an optional parameter. The default
|
|
# value is "", for no tail.
|
|
#
|
|
# IN_ERRATA_TABLE is a list of errata entries. See cp_check_errata for the
|
|
# format of the errata table. Note: the errata entries are not subject to
|
|
# demangler syntax adjustment, so you have to make a bigger table
|
|
# with lines for each output variation.
|
|
#
|
|
# IN_PTYPE_ARG are arguments to pass to ptype. The default is "/r".
|
|
#
|
|
# gdb can vary the output of ptype in several ways:
|
|
#
|
|
# . CLASS/STRUCT
|
|
#
|
|
# The output can start with either "class" or "struct", depending on
|
|
# what the symbol table reader in gdb decides. This is usually
|
|
# unrelated to the original source code.
|
|
#
|
|
# dwarf-2 debug info distinguishes class/struct, but gdb ignores it
|
|
# stabs+ debug info does not distinguish class/struct
|
|
# hp debug info distinguishes class/struct, and gdb honors it
|
|
#
|
|
# I tried to accommodate this with regular expressions such as
|
|
# "((class|struct) A \{ public:|struct A \{)", but that turns into a
|
|
# hairy mess because of optional private virtual base pointers and
|
|
# optional public synthetic operators. This is the big reason I gave
|
|
# up on regular expressions and started parsing the output.
|
|
#
|
|
# . REDUNDANT ACCESS SPECIFIER
|
|
#
|
|
# In "class { private: ... }" or "struct { public: ... }", gdb might
|
|
# or might not emit a redundant initial access specifier, depending
|
|
# on the gcc version.
|
|
#
|
|
# . VIRTUAL BASE POINTERS
|
|
#
|
|
# If a class has virtual bases, either direct or indirect, the class
|
|
# will have virtual base pointers. With gcc 2.95.3, gdb prints lines
|
|
# for these virtual base pointers. This does not happen with gcc
|
|
# 3.3.4, gcc 3.4.1, or hp acc A.03.45.
|
|
#
|
|
# I accept these lines. These lines are optional; but if I see one of
|
|
# these lines, then I expect to see all of them.
|
|
#
|
|
# Note: drow considers printing these lines to be a bug in gdb.
|
|
#
|
|
# . SYNTHETIC METHODS
|
|
#
|
|
# A C++ compiler may synthesize some methods: an assignment
|
|
# operator, a copy constructor, a constructor, and a destructor. The
|
|
# compiler might include debug information for these methods.
|
|
#
|
|
# dwarf-2 gdb does not show these methods
|
|
# stabs+ gdb shows these methods
|
|
# hp gdb does not show these methods
|
|
#
|
|
# I accept these methods. These lines are optional, and any or
|
|
# all of them might appear, mixed in anywhere in the regular methods.
|
|
#
|
|
# With gcc v2, the synthetic copy-ctor and ctor have an additional
|
|
# "int" parameter at the beginning, the "in-charge" flag.
|
|
#
|
|
# . DEMANGLER SYNTAX VARIATIONS
|
|
#
|
|
# Different demanglers produce "int foo(void)" versus "int foo()",
|
|
# "const A&" versus "const A &", and so on.
|
|
#
|
|
# TESTED WITH
|
|
#
|
|
# gcc 2.95.3 -gdwarf-2
|
|
# gcc 2.95.3 -gstabs+
|
|
# gcc 3.3.4 -gdwarf-2
|
|
# gcc 3.3.4 -gstabs+
|
|
# gcc 3.4.1 -gdwarf-2
|
|
# gcc 3.4.1 -gstabs+
|
|
# gcc HEAD 20040731 -gdwarf-2
|
|
# gcc HEAD 20040731 -gstabs+
|
|
#
|
|
# TODO
|
|
#
|
|
# Tagless structs.
|
|
#
|
|
# "A*" versus "A *" and "A&" versus "A &" in user methods.
|
|
#
|
|
# Test with hp ACC.
|
|
#
|
|
# -- chastain 2004-08-07
|
|
|
|
proc cp_test_ptype_class { in_exp in_testname in_key in_tag in_class_table { in_tail "" } { in_errata_table { } } { in_ptype_arg /r } } {
|
|
global gdb_prompt
|
|
set wsopt "\[\r\n\t \]*"
|
|
|
|
# The test name defaults to the command, but without the
|
|
# arguments, for historical reasons.
|
|
|
|
if { "$in_testname" == "" } then { set in_testname "ptype $in_exp" }
|
|
|
|
set in_command "ptype${in_ptype_arg} $in_exp"
|
|
|
|
# Save class tables in a history array for reuse.
|
|
|
|
global cp_class_table_history
|
|
if { $in_class_table == "ibid" } then {
|
|
if { ! [info exists cp_class_table_history("$in_key,$in_tag") ] } then {
|
|
fail "$in_testname // bad ibid"
|
|
return
|
|
}
|
|
set in_class_table $cp_class_table_history("$in_key,$in_tag")
|
|
} else {
|
|
set cp_class_table_history("$in_key,$in_tag") $in_class_table
|
|
}
|
|
|
|
# Split the class table into separate tables.
|
|
|
|
set list_bases { }
|
|
set list_vbases { }
|
|
set list_fields { }
|
|
set list_methods { }
|
|
set list_typedefs { }
|
|
|
|
foreach class_line $in_class_table {
|
|
switch [lindex $class_line 0] {
|
|
"base" { lappend list_bases [lindex $class_line 1] }
|
|
"vbase" { lappend list_vbases [lindex $class_line 1] }
|
|
"field" { lappend list_fields [lrange $class_line 1 2] }
|
|
"method" { lappend list_methods [lrange $class_line 1 2] }
|
|
"typedef" { lappend list_typedefs [lrange $class_line 1 2] }
|
|
default { fail "$in_testname // bad line in class table: $class_line"; return; }
|
|
}
|
|
}
|
|
|
|
# Construct a list of synthetic operators.
|
|
# These are: { count ccess-type regular-expression }.
|
|
|
|
set list_synth { }
|
|
lappend list_synth [list 0 "public" "$in_tag & operator=\\($in_tag const ?&\\);"]
|
|
lappend list_synth [list 0 "public" "$in_tag\\((int,|) ?$in_tag const ?&\\);"]
|
|
lappend list_synth [list 0 "public" "$in_tag\\((int|void|)\\);"]
|
|
|
|
# Actually do the ptype.
|
|
|
|
set parse_okay 0
|
|
gdb_test_multiple "$in_command" "$in_testname // parse failed" {
|
|
-re "type = (struct|class)${wsopt}(\[^ \t\]*)${wsopt}(\\\[with .*\\\]${wsopt})?((:\[^\{\]*)?)${wsopt}\{(.*)\}${wsopt}(\[^\r\n\]*)\[\r\n\]+$gdb_prompt $" {
|
|
set parse_okay 1
|
|
set actual_key $expect_out(1,string)
|
|
set actual_tag $expect_out(2,string)
|
|
set actual_base_string $expect_out(4,string)
|
|
set actual_body $expect_out(6,string)
|
|
set actual_tail $expect_out(7,string)
|
|
}
|
|
}
|
|
if { ! $parse_okay } then { return }
|
|
|
|
# Check the actual key. It would be nice to require that it match
|
|
# the input key, but gdb does not support that. For now, accept any
|
|
# $actual_key as long as the access property of each field/method
|
|
# matches.
|
|
|
|
switch "$actual_key" {
|
|
"class" { set access "private" }
|
|
"struct" { set access "public" }
|
|
default {
|
|
cp_check_errata "class" "$actual_key" $in_errata_table
|
|
cp_check_errata "struct" "$actual_key" $in_errata_table
|
|
fail "$in_testname // wrong key: $actual_key"
|
|
return
|
|
}
|
|
}
|
|
|
|
# Check the actual tag.
|
|
|
|
if { "$actual_tag" != "$in_tag" } then {
|
|
cp_check_errata "$in_tag" "$actual_tag" $in_errata_table
|
|
fail "$in_testname // wrong tag: $actual_tag"
|
|
return
|
|
}
|
|
|
|
# Check the actual bases.
|
|
# First parse them into a list.
|
|
|
|
set list_actual_bases { }
|
|
if { "$actual_base_string" != "" } then {
|
|
regsub "^:${wsopt}" $actual_base_string "" actual_base_string
|
|
set list_actual_bases [split $actual_base_string ","]
|
|
}
|
|
|
|
# Check the base count.
|
|
|
|
if { [llength $list_actual_bases] < [llength $list_bases] } then {
|
|
fail "$in_testname // too few bases"
|
|
return
|
|
}
|
|
if { [llength $list_actual_bases] > [llength $list_bases] } then {
|
|
fail "$in_testname // too many bases"
|
|
return
|
|
}
|
|
|
|
# Check each base.
|
|
|
|
foreach actual_base $list_actual_bases {
|
|
set actual_base [string trim $actual_base]
|
|
set base [lindex $list_bases 0]
|
|
if { "$actual_base" != "$base" } then {
|
|
cp_check_errata "$base" "$actual_base" $in_errata_table
|
|
fail "$in_testname // wrong base: $actual_base"
|
|
return
|
|
}
|
|
set list_bases [lreplace $list_bases 0 0]
|
|
}
|
|
|
|
# Parse each line in the body.
|
|
|
|
set last_was_access 0
|
|
set vbase_match 0
|
|
|
|
foreach actual_line [split $actual_body "\r\n"] {
|
|
|
|
# Chomp the line.
|
|
|
|
set actual_line [string trim $actual_line]
|
|
if { "$actual_line" == "" } then { continue }
|
|
|
|
# Access specifiers.
|
|
|
|
if { [regexp "^(public|protected|private)${wsopt}:\$" "$actual_line" s0 s1] } then {
|
|
set access "$s1"
|
|
if { $last_was_access } then {
|
|
fail "$in_testname // redundant access specifier"
|
|
return
|
|
}
|
|
set last_was_access 1
|
|
continue
|
|
} else {
|
|
set last_was_access 0
|
|
}
|
|
|
|
# Optional virtual base pointer.
|
|
|
|
if { [ llength $list_vbases ] > 0 } then {
|
|
set vbase [lindex $list_vbases 0]
|
|
if { [ regexp "$vbase \\*(_vb.|_vb\\\$|__vb_)\[0-9\]*$vbase;" $actual_line ] } then {
|
|
if { "$access" != "private" } then {
|
|
cp_check_errata "private" "$access" $in_errata_table
|
|
fail "$in_testname // wrong access specifier for virtual base: $access"
|
|
return
|
|
}
|
|
set list_vbases [lreplace $list_vbases 0 0]
|
|
set vbase_match 1
|
|
continue
|
|
}
|
|
}
|
|
|
|
# Data field.
|
|
|
|
if { [llength $list_fields] > 0 } then {
|
|
set field_access [lindex [lindex $list_fields 0] 0]
|
|
set field_decl [lindex [lindex $list_fields 0] 1]
|
|
if { "$actual_line" == "$field_decl" } then {
|
|
if { "$access" != "$field_access" } then {
|
|
cp_check_errata "$field_access" "$access" $in_errata_table
|
|
fail "$in_testname // wrong access specifier for field: $access"
|
|
return
|
|
}
|
|
set list_fields [lreplace $list_fields 0 0]
|
|
continue
|
|
}
|
|
|
|
# Data fields must appear before synths and methods.
|
|
cp_check_errata "$field_decl" "$actual_line" $in_errata_table
|
|
fail "$in_testname // unrecognized line type 1: $actual_line"
|
|
return
|
|
}
|
|
|
|
# Method function.
|
|
|
|
if { [llength $list_methods] > 0 } then {
|
|
set method_access [lindex [lindex $list_methods 0] 0]
|
|
set method_decl [lindex [lindex $list_methods 0] 1]
|
|
if { "$actual_line" == "$method_decl" } then {
|
|
if { "$access" != "$method_access" } then {
|
|
cp_check_errata "$method_access" "$access" $in_errata_table
|
|
fail "$in_testname // wrong access specifier for method: $access"
|
|
return
|
|
}
|
|
set list_methods [lreplace $list_methods 0 0]
|
|
continue
|
|
}
|
|
|
|
# gcc 2.95.3 shows "foo()" as "foo(void)".
|
|
regsub -all "\\(\\)" $method_decl "(void)" method_decl
|
|
if { "$actual_line" == "$method_decl" } then {
|
|
if { "$access" != "$method_access" } then {
|
|
cp_check_errata "$method_access" "$access" $in_errata_table
|
|
fail "$in_testname // wrong access specifier for method: $access"
|
|
return
|
|
}
|
|
set list_methods [lreplace $list_methods 0 0]
|
|
continue
|
|
}
|
|
}
|
|
|
|
# Typedef
|
|
|
|
if {[llength $list_typedefs] > 0} {
|
|
set typedef_access [lindex [lindex $list_typedefs 0] 0]
|
|
set typedef_decl [lindex [lindex $list_typedefs 0] 1]
|
|
if {[string equal $actual_line $typedef_decl]} {
|
|
if {![string equal $access $typedef_access]} {
|
|
cp_check_errata $typedef_access $access $in_errata_table
|
|
fail "$in_testname // wrong access specifier for typedef: $access"
|
|
return
|
|
}
|
|
set list_typedefs [lreplace $list_typedefs 0 0]
|
|
continue
|
|
}
|
|
}
|
|
|
|
# Synthetic operators. These are optional and can be mixed in
|
|
# with the methods in any order, but duplicates are wrong.
|
|
#
|
|
# This test must come after the user methods, so that a user
|
|
# method which matches a synth-method pattern is treated
|
|
# properly as a user method.
|
|
|
|
set synth_match 0
|
|
for { set isynth 0 } { $isynth < [llength $list_synth] } { incr isynth } {
|
|
set synth [lindex $list_synth $isynth]
|
|
set synth_count [lindex $synth 0]
|
|
set synth_access [lindex $synth 1]
|
|
set synth_re [lindex $synth 2]
|
|
|
|
if { [ regexp "$synth_re" "$actual_line" ] } then {
|
|
|
|
if { "$access" != "$synth_access" } then {
|
|
cp_check_errata "$synth_access" "$access" $in_errata_table
|
|
fail "$in_testname // wrong access specifier for synthetic operator: $access"
|
|
return
|
|
}
|
|
|
|
if { $synth_count > 0 } then {
|
|
cp_check_errata "$actual_line" "$actual_line" $in_errata_table
|
|
fail "$in_testname // duplicate synthetic operator: $actual_line"
|
|
}
|
|
|
|
# Update the count in list_synth.
|
|
|
|
incr synth_count
|
|
set synth [list $synth_count $synth_access "$synth_re"]
|
|
set list_synth [lreplace $list_synth $isynth $isynth $synth]
|
|
|
|
# Match found.
|
|
|
|
set synth_match 1
|
|
break
|
|
}
|
|
}
|
|
if { $synth_match } then { continue }
|
|
|
|
# Unrecognized line.
|
|
|
|
if { [llength $list_methods] > 0 } then {
|
|
set method_decl [lindex [lindex $list_methods 0] 1]
|
|
cp_check_errata "$method_decl" "$actual_line" $in_errata_table
|
|
}
|
|
|
|
fail "$in_testname // unrecognized line type 2: $actual_line"
|
|
return
|
|
}
|
|
|
|
# Check for missing elements.
|
|
|
|
if { $vbase_match } then {
|
|
if { [llength $list_vbases] > 0 } then {
|
|
fail "$in_testname // missing virtual base pointers"
|
|
return
|
|
}
|
|
}
|
|
|
|
if { [llength $list_fields] > 0 } then {
|
|
fail "$in_testname // missing fields"
|
|
return
|
|
}
|
|
|
|
if { [llength $list_methods] > 0 } then {
|
|
fail "$in_testname // missing methods"
|
|
return
|
|
}
|
|
|
|
if {[llength $list_typedefs] > 0} {
|
|
fail "$in_testname // missing typedefs"
|
|
return
|
|
}
|
|
|
|
# Check the tail.
|
|
|
|
set actual_tail [string trim $actual_tail]
|
|
if { "$actual_tail" != "$in_tail" } then {
|
|
cp_check_errata "$in_tail" "$actual_tail" $in_errata_table
|
|
fail "$in_testname // wrong tail: $actual_tail"
|
|
return
|
|
}
|
|
|
|
# It all worked!
|
|
|
|
pass "$in_testname"
|
|
return
|
|
}
|