# Copyright 1998-1999, 2003-2004, 2006-2012 Free Software Foundation, # Inc. # This file is part of the gdb testsuite # 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 . # Tests for pointer-to-member support # Written by Satish Pai 1997-08-19 # Rewritten by Michael Chastain 2004-01-11 set vhn "\\$\[0-9\]+" if { [skip_cplus_tests] } { continue } standard_testfile .cc if [get_compiler_info "c++"] { return -1 } if {[prepare_for_testing $testfile.exp $testfile $srcfile {debug c++}]} { return -1 } if ![runto_main] then { perror "couldn't run to breakpoint" continue } gdb_breakpoint [gdb_get_line_number "Breakpoint 1 here"] gdb_continue_to_breakpoint "continue to pmi = NULL" # ====================== # pointer to member data # ====================== # ptype on pointer to data member set name "ptype pmi (A::j)" gdb_test_multiple "ptype pmi" $name { -re "type = int A::\\*\r\n$gdb_prompt $" { pass $name } } # print pointer to data member set name "print pmi (A::j) " gdb_test_multiple "print pmi" $name { -re "$vhn = &A::j\r\n$gdb_prompt $" { pass $name } -re "$vhn = \\(int ?\\( ?A::\\*\\)\\) &A::j\r\n$gdb_prompt $" { pass $name } -re "$vhn = \\(int ?\\( ?A::\\*\\)\\) ?&A::j ?\\+ ?1 bytes\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 kfail "gdb/NNNN" $name } -re "$vhn = &A::j ?\\+ ?1 bytes\r\n$gdb_prompt $" { # gcc 2.95.3 -gstabs+ kfail "gdb/NNNN" $name } -re "$vhn = not implemented: member type in c_val_print\r\n$gdb_prompt $" { # gcc HEAD 2004-01-11 05:33:21 -gdwarf-2 # gcc HEAD 2004-01-11 05:33:21 -gstabs+ kfail "gdb/NNNN" $name } -re "$vhn = \\(int ?\\( A::\\*\\)\\) 536870920\r\n$gdb_prompt $" { # the value is 0x20000008 hex. 0x20000000 is an internal flag. # Use '|' to add in more values as needed. # hpacc A.03.45 kfail "gdb/NNNN" $name } } # print dereferenced pointer to data member set name "print a.*pmi (A::j)" gdb_test_multiple "print a.*pmi" $name { -re "$vhn = 121\r\n$gdb_prompt $" { pass $name } -re "$vhn = 855638016\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ kfail "gdb/NNNN" $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # print dereferenced pointer to data member # this time, dereferenced through a pointer set name "print a_p->*pmi (A::j)" gdb_test_multiple "print a_p->*pmi" $name { -re "$vhn = 121\r\n$gdb_prompt $" { pass $name } -re "$vhn = 855638016\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ kfail "gdb/NNNN" $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # set the pointer to a different data member set name "set var pmi = &A::jj" gdb_test_multiple "set var pmi = &A::jj" $name { -re "Invalid cast.\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } -re "set var pmi = &A::jj\r\n$gdb_prompt $" { # I have to match the echo'ed input explicitly here. # If I leave it out, the pattern becomes too general # and matches anything that ends in "$gdb_prompt $". pass $name } } # print the pointer again set name "print pmi (A::jj)" gdb_test_multiple "print pmi" $name { -re "$vhn = &A::jj\r\n$gdb_prompt $" { pass $name } -re "$vhn = \\(int ?\\( ?A::\\*\\)\\) &A::jj\r\n$gdb_prompt $" { pass $name } -re "$vhn = not implemented: member type in c_val_print\r\n$gdb_prompt $" { # gcc HEAD 2004-01-11 05:33:21 -gdwarf-2 # gcc HEAD 2004-01-11 05:33:21 -gstabs+ kfail "gdb/NNNN" $name } -re "$vhn = \\(int ?\\( A::\\*\\)\\) 536870924\r\n$gdb_prompt $" { # the value is 0x20000008 hex. 0x20000000 is an internal flag. # Use '|' to add in more values as needed. # hpacc A.03.45 kfail "gdb/NNNN" $name } } # print dereferenced pointer to data member again set name "print a.*pmi (A::jj)" gdb_test_multiple "print a.*pmi" $name { -re "$vhn = 1331\r\n$gdb_prompt $" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # set the pointer to data member back to A::j set name "set var pmi = &A::j" gdb_test_multiple "set var pmi = &A::j" $name { -re "Invalid cast.\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } -re "set var pmi = &A::j\r\n$gdb_prompt $" { # I have to match the echo'ed input explicitly here. # If I leave it out, the pattern becomes too general # and matches anything that ends in "$gdb_prompt $". pass $name } } # print dereferenced pointer to data member yet again (extra check, why not) set name "print a.*pmi (A::j) (again)" gdb_test_multiple "print a.*pmi" $name { -re "$vhn = 121\r\n$gdb_prompt $" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Set the data member pointed to. set name "print a.*pmi = 33" gdb_test_multiple "print a.*pmi = 33" $name { -re "$vhn = 33\r\n$gdb_prompt $" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Now check that the data really was changed set name "print a.*pmi (A::j) (33)" gdb_test_multiple "print a.*pmi" $name { -re "$vhn = 33\r\n$gdb_prompt $" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Double-check by printing a. set name "print a (j = 33)" gdb_test_multiple "print a" $name { -re "$vhn = \{c = 120 'x', j = 33, jj = 1331, (static|static int) s = 10, (_vptr.A|_vptr\\$) = ($hex|$hex )\}\r\n$gdb_prompt $" { pass $name } -re "$vhn = \{c = 120 'x', j = 33, jj = 1331, (static|static int) s = 10, Virtual table at $hex\}\r\n$gdb_prompt $" { pass $name } -re "$vhn = \{(_vptr.A|_vptr\\$) = ${hex}( )?, c = 120 'x', j = 33, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" { pass $name } -re "$vhn = \{(_vptr.A|_vptr\\$) = $hex, c = 120 'x', j = 121, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Set the data member pointed to, using ->* set name "print a_p->*pmi = 44" gdb_test_multiple "print a_p->*pmi = 44" $name { -re "$vhn = 44\r\n$gdb_prompt $" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Check that the data really was changed set name "print a_p->*pmi (44)" gdb_test_multiple "print a_p->*pmi" $name { -re "$vhn = 44\r\n$gdb_prompt $" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Double-check by printing a. set name "print a (j = 44)" gdb_test_multiple "print a" $name { -re "$vhn = \{c = 120 'x', j = 44, jj = 1331, (static|static int) s = 10, (_vptr.A|_vptr\\$) = ($hex|$hex )\}\r\n$gdb_prompt $" { pass $name } -re "$vhn = \{c = 120 'x', j = 44, jj = 1331, (static|static int) s = 10, Virtual table at $hex\}\r\n$gdb_prompt $" { pass $name } -re "$vhn = \{(_vptr.A|_vptr\\$) = ${hex}( ), c = 120 'x', j = 44, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" { pass $name } -re "$vhn = \{(_vptr.A|_vptr\\$) = $hex, c = 120 'x', j = 121, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # ptype the dereferenced pointer to member. set name "ptype a.*pmi" gdb_test_multiple "ptype a.*pmi" $name { -re "type = int\r\n$gdb_prompt" { pass $name } -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" { # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # dereference the pointer to data member without any object # this is not allowed: a pmi must be bound to an object to dereference set name "print *pmi" gdb_test_multiple "print *pmi" $name { -re "Attempt to dereference pointer to member without an object\r\n$gdb_prompt $" { pass $name } -re "Cannot access memory at address 0x4\r\n$gdb_prompt $" { # gcc 2.95.3 -gstabs+ kfail "gdb/NNNN" $name } -re "Cannot access memory at address 0x8\r\n$gdb_prompt $" { # gcc 3.3.2 -gdwarf-2 # gcc 3.3.2 -gstabs+ kfail "gdb/NNNN" $name } } # dereference the pointer to data member without any object # this is not allowed: a pmi must be bound to an object to dereference set name "ptype *pmi" gdb_test_multiple "ptype *pmi" $name { -re "Attempt to dereference pointer to member without an object\r\n$gdb_prompt $" { pass $name } -re "type = int A::\r\n$gdb_prompt $" { # gcc 2.95.3 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Check cast of pointer to member to integer. # This is similar to "offset-of". # such as "A a; print (size_t) &A.j - (size_t) &A". set name "print (int) pmi" gdb_test_multiple "print (int) pmi" $name { -re "$vhn = (4|8|12)\r\n$gdb_prompt" { pass $name } } # Check "(int) pmi" explicitly for equality. set name "print ((int) pmi) == ((char *) &a.j - (char *) &a)" gdb_test_multiple "print ((int) pmi) == ((char *) &a.j - (char *) & a)" $name { -re "$vhn = true\r\n$gdb_prompt" { pass $name } } # Check pointers to data members, which are themselves pointers to # functions. These behave like data members, not like pointers to # member functions. gdb_test "ptype diamond_pfunc_ptr" \ "type = int \\(\\*Diamond::\\*\\)\\(int\\)" gdb_test "ptype diamond.*diamond_pfunc_ptr" \ "type = int \\(\\*\\)\\(int\\)" # This one is invalid; () binds more tightly than .*, so it tries to # call the member pointer as a normal pointer-to-function. gdb_test "print diamond.*diamond_pfunc_ptr (20)" \ "Invalid data type for function to be called." # With parentheses, it is valid. gdb_test "print (diamond.*diamond_pfunc_ptr) (20)" \ "$vhn = 39" # Make sure that we do not interpret this as either a member pointer # call or a member function call. gdb_test "print diamond.func_ptr (20)" \ "$vhn = 39" # ========================== # pointer to member function # ========================== # ptype a pointer to a method set name "ptype pmf" gdb_test_multiple "ptype pmf" $name { -re "type = int \\( ?A::\\*\\)\\(A \\*( const)?, int\\)\r\n$gdb_prompt $" { pass $name } -re "type = int \\( ?A::\\*\\)\\(void\\)\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "type = struct \{.*\}\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.2.2 -gdwarf-2 # gcc 3.2.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # print a pointer to a method set name "print pmf" gdb_test_multiple "print pmf" $name { -re "$vhn = \\(int \\(A::\\*\\)\\(A \\*( const)?, int\\)\\) $hex \r\n$gdb_prompt $" { pass $name } -re "$vhn = .*not supported with HP aCC.*\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "$vhn = \{.*\}\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.2.2 -gdwarf-2 # gcc 3.2.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # ptype a pointer to a pointer to a method set name "ptype pmf_p" gdb_test_multiple "ptype pmf_p" $name { -re "type = int \\( ?A::\\*\\*\\)\\(A \\*( const)?, int\\)\r\n$gdb_prompt $" { pass $name } -re "type = int \\( ?A::\\*\\*\\)\\(void\\)\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "type = struct \{.*\} \\*\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.2.2 -gdwarf-2 # gcc 3.2.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # print a pointer to a pointer to a method set name "print pmf_p" gdb_test_multiple "print pmf_p" $name { -re "$vhn = \\(int \\( ?A::\\*\\*\\)\\)\\(int\\)\\) $hex\r\n$gdb_prompt $" { pass $name } -re "$vhn = \\(PMF \\*\\) $hex\r\n$gdb_prompt $" { pass "gdb/NNNN" } -re "$vhn = \\(int \\( ?A::\\*\\*\\)\\(void\\)\\) $hex\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "$vhn = \\(struct \{.*\} \\*\\) $hex\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 kfail "gdb/NNNN" $name } } # print dereferenced pointer to method set name "print a.*pmf" gdb_test_multiple "print a.*pmf" $name { -re "$vhn = {int \\(A \\*( const)?, int\\)} $hex \r\n$gdb_prompt $" { pass $name } -re "Pointers to methods not supported with HP aCC\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "Value can't be converted to integer.\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.2.2 -gdwarf-2 # gcc 3.2.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # print dereferenced pointer to method, using ->* set name "print a_p->*pmf" gdb_test_multiple "print a_p->*pmf" $name { -re "$vhn = {int \\(A \\*( const)?, int\\)} $hex \r\n$gdb_prompt $" { pass $name } -re "Pointers to methods not supported with HP aCC\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "Value can't be converted to integer.\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.2.2 -gdwarf-2 # gcc 3.2.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # set the pointer to data member set name "set var pmf = &A::foo" gdb_test_multiple "set var pmf = &A::foo" $name { -re "set var pmf = &A::foo\r\n$gdb_prompt $" { # I have to match the echo'ed input explicitly here. # If I leave it out, the pattern becomes too general # and matches anything that ends in "$gdb_prompt $". pass $name } -re "Invalid cast.\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.2.2 -gdwarf-2 # gcc 3.2.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } -re "Assignment to pointers to methods not implemented with HP aCC\r\n$gdb_prompt $" { kfail "gdb/NNNN" $name } } # dereference the pointer to data member without any object # this is not allowed: a pmf must be bound to an object to dereference set name "print *pmf" gdb_test_multiple "print *pmf" $name { -re "Attempt to dereference pointer to member without an object\r\n$gdb_prompt $" { pass $name } -re "Structure has no component named operator\\*.\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.3.2 -gdwarf-2 # gcc 3.3.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # dereference the pointer to data member without any object # this is not allowed: a pmf must be bound to an object to dereference set name "ptype *pmf" gdb_test_multiple "ptype *pmf" $name { -re "Attempt to dereference pointer to member without an object\r\n$gdb_prompt $" { pass $name } -re "Structure has no component named operator\\*.\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.3.2 -gdwarf-2 # gcc 3.3.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } # Call a function through a pmf. set name "print (a.*pmf)(3)" gdb_test_multiple "print (a.*pmf)(3)" $name { -re "$vhn = 50\r\n$gdb_prompt $" { pass $name } -re "Not implemented: function invocation through pointer to method with HP aCC\r\n$gdb_prompt $" { # hpacc A.03.45 kfail "gdb/NNNN" $name } -re "Value can't be converted to integer.\r\n$gdb_prompt $" { # gcc 2.95.3 -gdwarf-2 # gcc 2.95.3 -gstabs+ # gcc 3.3.2 -gdwarf-2 # gcc 3.3.2 -gstabs+ # gcc HEAD 2004-01-10 -gdwarf-2 # gcc HEAD 2004-01-10 -gstabs+ kfail "gdb/NNNN" $name } } gdb_test "ptype a.*pmf" "type = int \\(A \\*( const)?, int\\)" gdb_test "ptype (a.*pmf)(3)" "type = int" # Print out a pointer to data member which requires looking into # a base class. gdb_test "print diamond_pmi" "$vhn = &Base::x" gdb_test "print diamond.*diamond_pmi" "$vhn = 77" # Examine some more complicated pmfs, which require adjusting "this" # and looking through virtual tables. # These two have a different object adjustment, but call the same method. gdb_test "print diamond.*left_pmf" \ "$vhn = {int \\(Diamond \\*( const)?\\)} $hex " gdb_test "print diamond.*right_pmf" \ "$vhn = {int \\(Diamond \\*( const)?\\)} $hex " gdb_test "print (diamond.*left_pmf) ()" "$vhn = 77" gdb_test "print (diamond.*right_pmf) ()" "$vhn = 88" # These two point to different methods, although they have the same # virtual table offsets. gdb_test "print diamond.*left_vpmf" \ "$vhn = {int \\(Diamond \\*( const)?\\)} $hex " gdb_test "print diamond.*right_vpmf" \ "$vhn = {int \\(Diamond \\*( const)?\\)} $hex " gdb_test "print (diamond.*left_vpmf) ()" "$vhn = 177" gdb_test "print (diamond.*left_base_vpmf) ()" "$vhn = 2077" gdb_test "print (diamond.*right_vpmf) ()" "$vhn = 288" # We should be able to figure out left_vpmf even without an object, # because it comes from a non-virtual base. The same for right_vpmf. gdb_test "print left_vpmf" "$vhn = &virtual Left::vget\\(\\)" gdb_test "print right_vpmf" "$vhn = &virtual Right::vget\\(\\)" # But we should gracefully fail to figure out base_vpmf, because # its runtime type is more derived than its static type. This # is a valid but unspecified cast (it is value preserving, i.e. # can be casted back to the correct type and used). gdb_test "print base_vpmf" \ "$vhn = &virtual table offset \[0-9\]*, this adjustment -\[0-9\]*" # Make sure we parse this correctly; it's invalid. gdb_test "print diamond.*left_vpmf ()" \ "Invalid data type for function to be called\\." # NULL pointer to member tests. gdb_test "print null_pmi" "$vhn = NULL" gdb_test "print null_pmi = &A::j" "$vhn = &A::j" gdb_test "print null_pmi = 0" "$vhn = NULL" gdb_test "print null_pmf" "$vhn = NULL" gdb_test "print null_pmf = &A::foo" "$vhn = \\(int \\(A::\\*\\)\\(A \\*( const)?, int\\)\\) $hex " gdb_test "print null_pmf = 0" "$vhn = NULL"