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Diffstat (limited to 'gdb/testsuite/gdb.base/pointers.exp')
| -rw-r--r-- | gdb/testsuite/gdb.base/pointers.exp | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.base/pointers.exp b/gdb/testsuite/gdb.base/pointers.exp new file mode 100644 index 00000000000..7a0e44f3574 --- /dev/null +++ b/gdb/testsuite/gdb.base/pointers.exp @@ -0,0 +1,358 @@ +# Copyright (C) 1998 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 2 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, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +# Please email any bugs, comments, and/or additions to this file to: +# bug-gdb@prep.ai.mit.edu + +# This file was written by Elena Zannoni (ezannoni@cygnus.com) + +# This file is part of the gdb testsuite +# +# tests for pointer arithmetic and pointer dereferencing +# with integer type variables and pointers to integers +# + +if $tracelevel then { + strace $tracelevel + } + +# +# test running programs +# +set prms_id 0 +set bug_id 0 + +set testfile "pointers" +set srcfile ${testfile}.c +set binfile ${objdir}/${subdir}/${testfile} + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } { + gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail." + } + + +gdb_exit +gdb_start +gdb_reinitialize_dir $srcdir/$subdir +gdb_load ${binfile} + + +# +# set it up at a breakpoint so we can play with the variable values +# + +if ![runto_main] then { + perror "couldn't run to breakpoint" + continue +} + +gdb_test "next" "return 0;" "continuing after dummy()" + + +# +# let's see if gdb catches some illegal operations on pointers +# +# I must comment these out because strict type checking is not +# supported in this version of GDB. I do not really know +# what the expected gdb reply is. +# + +#send_gdb "print v_int_pointer2 = &v_int_pointer\n" +#gdb_expect { +# -re ".*.*$gdb_prompt $" { +# pass "illegal pointer assignment rejected" +# } +# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" } +# timeout { fail "(timeout) illegal pointer assignment rejected" } +# } + + +#send_gdb "print v_unsigned_int_pointer = &v_int\n" +#gdb_expect { +# -re ".*.*$gdb_prompt $" { +# pass "illegal pointer assignment rejected" +# } +# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" } +# timeout { fail "(timeout) ilegal pointer assignment rejected" } +# } + +#send_gdb "print v_unsigned_int_pointer == v_double_pointer\n" +#gdb_expect { +# -re ".*.*$gdb_prompt $" { +# pass "illegal pointer operation (+) rejected" +# } +# -re ".*$gdb_prompt $" { fail "illegal pointer operation (+) rejected" } +# timeout { fail "(timeout) illegal pointer operation (+) rejected" } +# } + + +#send_gdb "print v_unsigned_int_pointer * v_double_pointer\n" +#gdb_expect { +# -re ".*Argument to arithmetic operation not a number or boolean.*$gdb_prompt $" { +# pass "illegal pointer operation (*) rejected" +# } +# -re ".*$gdb_prompt $" { fail "illegal pointer operation (*) rejected" } +# timeout { fail "(timeout) illegal pointer operation (*) rejected" } +# } + + +#send_gdb "print v_unsigned_int_pointer = v_double_pointer\n" +#gdb_expect { +# -re ".*.*$gdb_prompt $" { +# pass "ilegal pointer assignment rejected" +# } +# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" } +# timeout { fail "(timeout) illegal pointer assignment rejected" } +# } + + +#send_gdb "print v_unsigned_int_pointer = v_unsigned_int\n" +#gdb_expect { +# -re ".*.*$gdb_prompt $" { +# pass "illegal pointer assignment rejected" +# } +# -re ".*$gdb_prompt $" { fail "illegal pointer assignment rejected" } +# timeout { fail "(timeout) illegal pointer assignment rejected" } +# } + +gdb_test "set variable v_int_pointer=&v_int_array\[0\]" "" "set pointer to beginning of array" +gdb_test "set variable v_int_pointer2=&v_int_array\[1\]" "" "set pointer to end of array" + + +send_gdb "print *v_int_pointer\n" +gdb_expect { + -re ".*= 6.*$gdb_prompt $" { + pass "print object pointed to" + } + -re ".*$gdb_prompt $" { fail "print object pointed to" } + timeout { fail "(timeout) print object pointed to" } + } + +send_gdb "print *v_int_pointer2\n" +gdb_expect { + -re ".*= 18.*$gdb_prompt $" { + pass "print object pointed to" + } + -re ".*$gdb_prompt $" { fail "print object pointed to" } + timeout { fail "(timeout) print object pointed to" } + } + + +send_gdb "print v_int_pointer == v_int_pointer2\n" +gdb_expect { + -re ".*= 0.*$gdb_prompt $" { + pass "pointer1==pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1==pointer2" } + timeout { fail "(timeout) pointer1==pointer2" } + } + +send_gdb "print v_int_pointer != v_int_pointer2\n" +gdb_expect { + -re ".*= 1.*$gdb_prompt $" { + pass "pointer1!=pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1!=pointer2" } + timeout { fail "(timeout) pointer1!=pointer2" } + } + + +send_gdb "print v_int_pointer <= v_int_pointer2\n" +gdb_expect { + -re ".*= 1.*$gdb_prompt $" { + pass "pointer1<=pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1<=pointer2" } + timeout { fail "(timeout) pointer1<=pointer2" } + } + + +send_gdb "print v_int_pointer >= v_int_pointer2\n" +gdb_expect { + -re ".*= 0.*$gdb_prompt $" { + pass "pointer1>=pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1>=pointer2" } + timeout { fail "(timeout) pointer1>=pointer2" } + } + + +send_gdb "print v_int_pointer < v_int_pointer2\n" +gdb_expect { + -re ".*= 1.*$gdb_prompt $" { + pass "pointer1<pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1<pointer2" } + timeout { fail "(timeout) pointer1<pointer2" } + } + +send_gdb "print v_int_pointer > v_int_pointer2\n" +gdb_expect { + -re ".*= 0.*$gdb_prompt $" { + pass "pointer1>pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1>pointer2" } + timeout { fail "(timeout) pointer1>pointer2" } + } + + +gdb_test "set variable y = *v_int_pointer++" "" "set y = *v_int_pointer++" +send_gdb "print y\n" +gdb_expect { + -re ".*= 6.*$gdb_prompt $" { + send_gdb "print *v_int_pointer\n" + gdb_expect { + -re ".*= 18.*$gdb_prompt $" { + pass "pointer assignment and increment" + } + -re ".*$gdb_prompt $" { fail "pointer assignment and increment" } + timeout { fail "(timeout) pointer assignment and increment" } + } + } + -re ".*$gdb_prompt $" { fail "pointer assignment and increment" } + timeout { fail "(timeout) pointer assignment and increment" } + } + + + + +gdb_test "set variable y = *--v_int_pointer2" "" "set y = *--v_int_pointer2" +send_gdb "print y\n" +gdb_expect { + -re ".*= 6.*$gdb_prompt $" { + send_gdb "print *v_int_pointer2\n" + gdb_expect { + -re ".*= 6.*$gdb_prompt $" { + pass "pointer decrement and assignment" + } + -re ".*$gdb_prompt $" { fail "pointer decrement and assignment" } + timeout { fail "(timeout) pointer decrement and assignment" } + } + } + -re ".*$gdb_prompt $" { fail "pointer decrement and assignment" } + timeout { fail "(timeout) pointer decrement and assignment" } + } + +gdb_test "set variable y =v_int_pointer-v_int_pointer2" "" "set y =v_int_pointer-v_int_pointer2" +send_gdb "print y\n" +gdb_expect { + -re ".*= 1.*$gdb_prompt $" { + pass "pointer1-pointer2" + } + -re ".*$gdb_prompt $" { fail "pointer1-pointer2" } + timeout { fail "(timeout) pointer1-pointer2" } + } + +gdb_test "set variable v_int_pointer=v_int_array" "" "set v_int_pointer=v_int_array" +send_gdb "print *v_int_pointer\n" +gdb_expect { + -re ".*= 6.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + + +send_gdb "print *(v_int_pointer+1)\n" +gdb_expect { + -re ".*= 18.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + +# test print elements of array through pointers + +send_gdb "print (*rptr)\[0\]\n" +gdb_expect { + -re ".*= 0.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + +send_gdb "print (*rptr)\[1\]\n" +gdb_expect { + -re ".*= 1.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + + +send_gdb "print (*rptr)\[2\]\n" +gdb_expect { + -re ".*= 2.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + +gdb_test "set variable rptr = rptr+1" "" "increment rptr" + +send_gdb "print (*rptr)\[0\]\n" +gdb_expect { + -re ".*= 3.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + + +send_gdb "print (*rptr)\[1\]\n" +gdb_expect { + -re ".*= 4.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + + +send_gdb "print (*rptr)\[2\]\n" +gdb_expect { + -re ".*= 5.*$gdb_prompt $" { + pass "print array element through pointer" + } + -re ".*$gdb_prompt $" { fail "print array element through pointer" } + timeout { fail "(timeout) print array element through pointer" } + } + + +send_gdb "print *( *(matrix+1) +2)\n" +gdb_expect { + -re ".*= 5.*$gdb_prompt $" { + pass "print array element w/ pointer arithmetic" + } + -re ".*$gdb_prompt $" { fail "print array element w/ pointer arithemtic" } + timeout { fail "(timeout) print array element w/ pointer arithmetic" } + } + + +send_gdb "print **ptr_to_ptr_to_float\n" +gdb_expect { + -re ".*= 100.*$gdb_prompt $" { + pass "print through ptr to ptr" + } + -re ".*$gdb_prompt $" { fail "print through ptr to ptr" } + timeout { fail "(timeout) print through ptr to ptr" } + } |