Check that GDB and the C compiler agree about the sizeof a few basic C
types.
This commit is contained in:
Andrew Cagney
parent
5b4cf3f497
commit
2391e11d3a
@ -1,3 +1,13 @@
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Thu Jul 13 11:52:53 2000 Andrew Cagney <cagney@b1.cygnus.com>
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* gdb.base/sizeof.exp, gdb.base/sizeof.c: New files. Compare GDB
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and the compilers sizes.
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Wed Jul 12 18:14:29 2000 Andrew Cagney <cagney@b1.cygnus.com>
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* gdb.base/exprs.exp: Test casts to a pointer including over and
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underflow.
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2000-07-09 Nick Duffek <nsd@redhat.com>
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* gdb.c++/misc.cc (class ClassParam, class_param): Define.
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17
gdb/testsuite/gdb.base/sizeof.c
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17
gdb/testsuite/gdb.base/sizeof.c
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@ -0,0 +1,17 @@
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int
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main ()
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{
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printf ("sizeof (char) == %d\n", sizeof (char));
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printf ("sizeof (short) == %d\n", sizeof (short));
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printf ("sizeof (int) == %d\n", sizeof (int));
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printf ("sizeof (long) == %d\n", sizeof (long));
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printf ("sizeof (long long) == %d\n", sizeof (long long));
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printf ("sizeof (void *) == %d\n", sizeof (void*));
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printf ("sizeof (void (*)(void)) == %d\n", sizeof (void (*)(void)));
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printf ("sizeof (float) == %d\n", sizeof (float));
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printf ("sizeof (double) == %d\n", sizeof (double));
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printf ("sizeof (long double) == %d\n", sizeof (long double));
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return 0;
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}
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145
gdb/testsuite/gdb.base/sizeof.exp
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145
gdb/testsuite/gdb.base/sizeof.exp
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@ -0,0 +1,145 @@
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# Copyright (C) 2000 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# bug-gdb@prep.ai.mit.edu
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if $tracelevel {
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strace $tracelevel
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}
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#
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# test running programs
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#
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set prms_id 0
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set bug_id 0
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set testfile "sizeof"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
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gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
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}
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if [get_compiler_info ${binfile}] {
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return -1;
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}
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gdb_exit
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gdb_start
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gdb_reinitialize_dir $srcdir/$subdir
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gdb_load ${binfile}
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#
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# set it up at a breakpoint so we can play with the variable values
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#
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if ![runto_main] then {
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perror "couldn't run to breakpoint"
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continue
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}
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#
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# Query GDB for the size of various types
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#
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proc get_sizeof { type default } {
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global gdb_prompt
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send_gdb "print/d sizeof (${type})\n"
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gdb_expect {
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-re "\\$\[0-9\]* = (\[0-9\]*).*$gdb_prompt $" {
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set size $expect_out(1,string)
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pass "get sizeof ${type} ($size)"
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}
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timeout {
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set size ${default}
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fail "get sizeof ${type} (timeout)"
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}
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}
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return ${size}
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}
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set sizeof_char [get_sizeof "char" 1]
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set sizeof_short [get_sizeof "short" 2]
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set sizeof_int [get_sizeof "int" 4]
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set sizeof_long [get_sizeof "long" 4]
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set sizeof_long_long [get_sizeof "long long" 8]
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set sizeof_data_ptr [get_sizeof "void *" 4]
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set sizeof_func_ptr [get_sizeof "void (*)(void)" 4]
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set sizeof_float [get_sizeof "float" 4]
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set sizeof_double [get_sizeof "double" 8]
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set sizeof_long_double [get_sizeof "long double" 8]
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#
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# Compare GDB's idea of types with the running program
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#
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proc check_sizeof { type size } {
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global gdb_prompt
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set pat [string_to_regexp ${type}]
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send_gdb "next\n"
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gdb_expect {
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-re "sizeof \\(${pat}\\) == ${size}\[\r\n\].*$gdb_prompt $" {
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pass "check sizeof ${type} == ${size}"
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}
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-re ".*$gdb_prompt $" {
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fail "check sizeof ${type} == ${size}"
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}
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timeout {
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fail "check sizeof ${type} == ${size} (timeout)"
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}
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}
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}
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check_sizeof "char" ${sizeof_char}
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check_sizeof "short" ${sizeof_short}
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check_sizeof "int" ${sizeof_int}
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check_sizeof "long" ${sizeof_long}
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check_sizeof "long long" ${sizeof_long_long}
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check_sizeof "void *" ${sizeof_data_ptr}
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check_sizeof "void (*)(void)" ${sizeof_func_ptr}
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check_sizeof "float" ${sizeof_float}
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check_sizeof "double" ${sizeof_double}
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check_sizeof "long double" ${sizeof_long_double}
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#
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# For reference, dump out the entire architecture
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#
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# The output is very long so use a while loop to consume it
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send_gdb "maint print arch\n"
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set ok 1
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while { $ok } {
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gdb_expect {
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-re ".*dump" {
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#pass "maint print arch $ok"
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#set ok [expr $ok + 1]
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}
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-re "$gdb_prompt $" {
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pass "maint print arch"
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set ok 0
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}
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timeout {
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fail "maint print arch (timeout)"
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set ok 0
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}
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}
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}
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