-# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 1996, 1997, 1999, 2003, 2004, 2007, 2008
+# 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
+# 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, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu
-# This file was written by Jeff Law. (law@cygnus.com)
-
if $tracelevel then {
strace $tracelevel
}
set prms_id 0
set bug_id 0
-set prototypes 1
+# Some targets can't call functions, so don't even bother with this
+# test.
+
+if [target_info exists gdb,cannot_call_functions] {
+ setup_xfail "*-*-*"
+ fail "This target can not call functions"
+ continue
+}
+
set testfile "structs"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
-# build the first test case
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
- # built the second test case since we can't use prototypes
- warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES"
-if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DNO_PROTOTYPES}] != "" } {
- gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
- }
- set prototypes 0
-}
+# Create and source the file that provides information about the
+# compiler used to compile the test case.
-# Create and source the file that provides information about the compiler
-# used to compile the test case.
if [get_compiler_info ${binfile}] {
return -1;
}
-# The a29k can't call functions, so don't even bother with this test.
-if [istarget "a29k-*-udi"] then {
- setup_xfail "a29k-*-udi" 2416
- fail "a29k-*-udi can not call functions"
- continue
-}
+# Compile a variant of structs.c using TYPES to specify the type of
+# the first N struct elements (the remaining elements take the type of
+# the last TYPES field). Run the compmiled program up to "main".
+# Also updates the global "testfile" to reflect the most recent build.
-# FIXME: Before calling this proc, we should probably verify that
-# we can call inferior functions and get a valid integral value
-# returned.
-# Note that it is OK to check for 0 or 1 as the returned values, because C
-# specifies that the numeric value of a relational or logical expression
-# (computed in the inferior) is 1 for true and 0 for false.
-
-proc do_function_calls {} {
- global prototypes
- global gcc_compiled
+proc start_structs_test { types } {
+ global testfile
+ global srcfile
+ global binfile
+ global objdir
+ global subdir
+ global srcdir
global gdb_prompt
- # First, call the "fun" functions and examine the value they return.
- gdb_test "p fun1()" " = {a = 49 '1'}"
- gdb_test "p fun2()" " = {a = 97 'a', b = 98 'b'}"
- gdb_test "p fun3()" " = {a = 65 'A', b = 66 'B', c = 67 'C'}"
- gdb_test "p fun4()" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4'}"
- gdb_test "p fun5()" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e'}"
- gdb_test "p fun6()" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F'}"
- gdb_test "p fun7()" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7'}"
- gdb_test "p fun8()" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8'}"
- gdb_test "p fun9()" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i'}"
- gdb_test "p fun10()" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J'}"
- gdb_test "p fun11()" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8', i = 57 '9', j = 65 'A', k = 66 'B'}"
- gdb_test "p fun12()" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J', k = 75 'K', l = 76 'L'}"
- gdb_test "p fun16()" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i', j = 106 'j', k = 107 'k', l = 108 'l', m = 109 'm', n = 110 'n', o = 111 'o', p = 112 'p'}"
-
- # Now call the Fun functions to set the L* variables. This
- # tests that gdb properly passes structures to functions.
- gdb_test "p Fun1(foo1)" " = (void|0)"
- gdb_test "p Fun2(foo2)" " = (void|0)"
- gdb_test "p Fun3(foo3)" " = (void|0)"
- gdb_test "p Fun4(foo4)" " = (void|0)"
- gdb_test "p Fun5(foo5)" " = (void|0)"
- gdb_test "p Fun6(foo6)" " = (void|0)"
- gdb_test "p Fun7(foo7)" " = (void|0)"
- gdb_test "p Fun8(foo8)" " = (void|0)"
- gdb_test "p Fun9(foo9)" " = (void|0)"
- gdb_test "p Fun10(foo10)" " = (void|0)"
- gdb_test "p Fun11(foo11)" " = (void|0)"
- gdb_test "p Fun12(foo12)" " = (void|0)"
- gdb_test "p Fun16(foo16)" " = (void|0)"
-
- # Now print the L* variables and examine their values.
- gdb_test "p L1" " = {a = 49 '1'}"
- gdb_test "p L2" " = {a = 97 'a', b = 98 'b'}"
- gdb_test "p L3" " = {a = 65 'A', b = 66 'B', c = 67 'C'}"
- gdb_test "p L4" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4'}"
- if {$gcc_compiled} then {
- setup_xfail "hppa*-*-*"
+ # Create the additional flags
+ set flags "debug"
+ set testfile "structs"
+ set n 0
+ for {set n 0} {$n<[llength ${types}]} {incr n} {
+ set m [I2A ${n}]
+ set t [lindex ${types} $n]
+ lappend flags "additional_flags=-Dt${m}=${t}"
+ append testfile "-" "$t"
}
- gdb_test "p L5" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e'}"
- if {$gcc_compiled} then {
- setup_xfail "hppa*-*-*"
+
+ set binfile ${objdir}/${subdir}/${testfile}
+ if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "${flags}"] != "" } {
+ # built the second test case since we can't use prototypes
+ warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES"
+ if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable "${flags} additional_flags=-DNO_PROTOTYPES"] != "" } {
+ untested structs.exp
+ return -1
+ }
}
- gdb_test "p L6" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F'}"
- if {$gcc_compiled} then {
- setup_xfail "hppa*-*-*"
+
+ # Start with a fresh gdb.
+ gdb_exit
+ gdb_start
+ gdb_reinitialize_dir $srcdir/$subdir
+ gdb_load ${binfile}
+
+ # Make certain that the output is consistent
+ gdb_test "set print sevenbit-strings" "" \
+ "set print sevenbit-strings; ${testfile}"
+ gdb_test "set print address off" "" \
+ "set print address off; ${testfile}"
+ gdb_test "set width 0" "" \
+ "set width 0; ${testfile}"
+
+ # Advance to main
+ if { ![runto_main] } then {
+ gdb_suppress_tests;
}
- gdb_test "p L7" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7'}"
- gdb_test "p L8" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8'}"
- gdb_test "p L9" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i'}"
- gdb_test "p L10" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J'}"
- gdb_test "p L11" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8', i = 57 '9', j = 65 'A', k = 66 'B'}"
- gdb_test "p L12" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J', k = 75 'K', l = 76 'L'}"
- gdb_test "p L16" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i', j = 106 'j', k = 107 'k', l = 108 'l', m = 109 'm', n = 110 'n', o = 111 'o', p = 112 'p'}"
+
+ # Get the debug format
+ get_debug_format
+
+ # check that at the struct containing all the relevant types is correct
+ set foo_t "type = struct struct[llength ${types}] \{"
+ for {set n 0} {$n<[llength ${types}]} {incr n} {
+ append foo_t "\[\r\n \]+[lindex ${types} $n] [i2a $n];"
+ }
+ append foo_t "\[\r\n \]+\}"
+ gdb_test "ptype foo[llength ${types}]" "${foo_t}" \
+ "ptype foo[llength ${types}]; ${testfile}"
}
-# Start with a fresh gdb.
-gdb_start
-gdb_reinitialize_dir $srcdir/$subdir
-gdb_load ${binfile}
+# The expected value for fun${n}, L${n} and foo${n}. First element is
+# empty to make indexing easier. "foo" returns the modified value,
+# "zed" returns the invalid value.
-gdb_test "set print sevenbit-strings" "" ""
-gdb_test "set print address off" "" ""
-gdb_test "set width 0" "" ""
+proc foo { n } {
+ return [lindex {
+ "{}"
+ "{a = 49 '1'}"
+ "{a = 97 'a', b = 50 '2'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C', m = 109 'm', n = 69 'E'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D', n = 110 'n', o = 70 'F'}"
+ "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C', m = 109 'm', n = 69 'E', o = 111 'o', p = 71 'G'}"
+ "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D', n = 110 'n', o = 70 'F', p = 112 'p', q = 72 'H'}"
+ } $n]
+}
-if [target_info exists gdb,cannot_call_functions] {
- setup_xfail "*-*-*" 2416
- fail "This target can not call functions"
- return 0
+proc zed { n } {
+ return [lindex {
+ "{}"
+ "{a = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z', p = 90 'Z'}"
+ "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z', p = 90 'Z', q = 90 'Z'}"
+ } $n]
+}
+
+proc any { n } {
+ return [lindex {
+ "{}"
+ "{a = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*, o = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*, o = \[^,\}\]*, p = \[^,\}\]*}"
+ "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*, o = \[^,\}\]*, p = \[^,\}\]*, q = \[^,\}\]*}"
+ } $n]
}
-if { ![runto_main] } then {
- gdb_suppress_tests;
+# Given N (0..25), return the corresponding alphabetic letter in lower
+# or upper case. This is ment to be i18n proof.
+
+proc i2a { n } {
+ return [string range "abcdefghijklmnopqrstuvwxyz" $n $n]
+}
+
+proc I2A { n } {
+ return [string toupper [i2a $n]]
+}
+
+
+# Use the file name, compiler and tuples to set up any needed KFAILs.
+
+proc setup_kfails { file tuples bug } {
+ global testfile
+ if [string match $file $testfile] {
+ foreach f $tuples { setup_kfail $f $bug }
+ }
+}
+
+proc setup_compiler_kfails { file compiler format tuples bug } {
+ global testfile
+ if {[string match $file $testfile] && [test_compiler_info $compiler] && [test_debug_format $format]} {
+ foreach f $tuples { setup_kfail $f $bug }
+ }
+}
+
+# Test GDB's ability to make inferior function calls to functions
+# returning (or passing in a single structs.
+
+# N identifies the number of elements in the struct that will be used
+# for the test case. FAILS is a list of target tuples that will fail
+# this test.
+
+# start_structs_test() will have previously built a program with a
+# specified combination of types for those elements. To ensure
+# robustness of the output, "p/c" is used.
+
+# This tests the code paths "which return-value convention?" and
+# "extract return-value from registers" called by "infcall.c".
+
+proc test_struct_calls { n } {
+ global testfile
+ global gdb_prompt
+
+ # Check that GDB can always extract a struct-return value from an
+ # inferior function call. Since GDB always knows the location of an
+ # inferior function call's return value these should never fail
+
+ # Implemented by calling the parameterless function "fun$N" and then
+ # examining the return value printed by GDB.
+
+ set tests "call $n ${testfile}"
+
+ # Call fun${n}, checking the printed return-value.
+ setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
+ setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
+ gdb_test "p/c fun${n}()" "[foo ${n}]" "p/c fun<n>(); ${tests}"
+
+ # Check that GDB can always pass a structure to an inferior function.
+ # This test can never fail.
+
+ # Implemented by calling the one parameter function "Fun$N" which
+ # stores its parameter in the global variable "L$N". GDB then
+ # examining that global to confirm that the value is as expected.
+
+ gdb_test "call Fun${n}(foo${n})" "" "call Fun<n>(foo<n>); ${tests}"
+ setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
+ setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455
+ gdb_test "p/c L${n}" [foo ${n}] "p/c L<n>; ${tests}"
+}
+
+# Test GDB's ability to both return a function (with "return" or
+# "finish") and correctly extract/store any corresponding
+# return-value.
+
+# Check that GDB can consistently extract/store structure return
+# values. There are two cases - returned in registers and returned in
+# memory. For the latter case, the return value can't be found and a
+# failure is "expected". However GDB must still both return the
+# function and display the final source and line information.
+
+# N identifies the number of elements in the struct that will be used
+# for the test case. FAILS is a list of target tuples that will fail
+# this test.
+
+# This tests the code paths "which return-value convention?", "extract
+# return-value from registers", and "store return-value in registers".
+# Unlike "test struct calls", this test is expected to "fail" when the
+# return-value is in memory (GDB can't find the location). The test
+# is in three parts: test "return"; test "finish"; check that the two
+# are consistent. GDB can sometimes work for one command and not the
+# other.
+
+proc test_struct_returns { n } {
+ global gdb_prompt
+ global testfile
+
+ set tests "return $n ${testfile}"
+
+
+ # Check that "return" works.
+
+ # GDB must always force the return of a function that has
+ # a struct result. Dependant on the ABI, it may, or may not be
+ # possible to store the return value in a register.
+
+ # The relevant code looks like "L{n} = fun{n}()". The test forces
+ # "fun{n}" to "return" with an explicit value. Since that code
+ # snippet will store the the returned value in "L{n}" the return
+ # is tested by examining "L{n}". This assumes that the
+ # compiler implemented this as fun{n}(&L{n}) and hence that when
+ # the value isn't stored "L{n}" remains unchanged. Also check for
+ # consistency between this and the "finish" case.
+
+ # Get into a call of fun${n}
+ gdb_test "advance fun${n}" \
+ "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
+ "advance to fun<n> for return; ${tests}"
+
+ # Check that the program invalidated the relevant global.
+ gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for return; ${tests}"
+
+ # Force the "return". This checks that the return is always
+ # performed, and that GDB correctly reported this to the user.
+ # GDB 6.0 and earlier, when the return-value's location wasn't
+ # known, both failed to print a final "source and line" and misplaced
+ # the frame ("No frame").
+
+ # The test is writen so that it only reports one FAIL/PASS for the
+ # entire operation. The value returned is checked further down.
+ # "return_value_known", if non-zero, indicates that GDB knew where
+ # the return value was located.
+
+ set test "return foo<n>; ${tests}"
+ set return_value_known 1
+ set return_value_unimplemented 0
+ gdb_test_multiple "return foo${n}" "${test}" {
+ -re "The location" {
+ # Ulgh, a struct return, remember this (still need prompt).
+ set return_value_known 0
+ exp_continue
+ }
+ -re "A structure or union" {
+ # Ulgh, a struct return, remember this (still need prompt).
+ set return_value_known 0
+ # Double ulgh. Architecture doesn't use return_value and
+ # hence hasn't implemented small structure return.
+ set return_value_unimplemented 1
+ exp_continue
+ }
+ -re "Make fun${n} return now.*y or n. $" {
+ gdb_test_multiple "y" "${test}" {
+ -re "L${n} *= fun${n}.*${gdb_prompt} $" {
+ # Need to step off the function call
+ gdb_test "next" "L.* *= fun.*" "${test}"
+ }
+ -re "L[expr ${n} + 1] *= fun[expr ${n} + 1].*${gdb_prompt} $" {
+ pass "${test}"
+ }
+ }
+ }
+ }
+
+ # Check that the return-value is as expected. At this stage we're
+ # just checking that GDB has returned a value consistent with
+ # "return_value_known" set above.
+ #
+ # Note that, when return_value_known is false, we can't make any
+ # assumptions at all about the value L<n>:
+ #
+ # - If the caller passed the address of L<n> directly as fun<n>'s
+ # return value buffer, then L<n> will be unchanged, because we
+ # forced fun<n> to return before it could store anything in it.
+ #
+ # - If the caller passed the address of some temporary buffer to
+ # fun<n>, and then copied the buffer into L<n>, then L<n> will
+ # have been overwritten with whatever garbage was in the
+ # uninitialized buffer.
+ #
+ # - However, if the temporary buffer just happened to have the
+ # "right" value of foo<n> in it, then L<n> will, in fact, have
+ # the value you'd expect to see if the 'return' had worked!
+ # This has actually been observed to happen on the Renesas M32C.
+ #
+ # So, really, anything is acceptable unless return_value_known is
+ # true.
+
+ set test "value foo<n> returned; ${tests}"
+ gdb_test_multiple "p/c L${n}" "${test}" {
+ -re " = [foo ${n}].*${gdb_prompt} $" {
+ # This answer is okay regardless of whether GDB claims to
+ # have set the return value: if it did, then this is what
+ # we expected; and if it didn't, then any answer is okay.
+ pass "${test}"
+ }
+ -re " = [any $n].*${gdb_prompt} $" {
+ if $return_value_known {
+ # This contradicts the above claim that GDB knew
+ # the location of the return value.
+ fail "${test}"
+ } else {
+ # We expected L${n} to be set to garbage, so any
+ # answer is acceptable.
+ pass "${test}"
+ }
+ }
+ -re ".*${gdb_prompt} $" {
+ if $return_value_unimplemented {
+ # What a suprize. The architecture hasn't implemented
+ # return_value, and hence has to fail.
+ kfail "$test" gdb/1444
+ } else {
+ fail "$test"
+ }
+ }
+ }
+
+ # Check that a "finish" works.
+
+ # This is almost but not quite the same as "call struct funcs".
+ # Architectures can have subtle differences in the two code paths.
+
+ # The relevant code snippet is "L{n} = fun{n}()". The program is
+ # advanced into a call to "fun{n}" and then that function is
+ # finished. The returned value that GDB prints, reformatted using
+ # "p/c", is checked.
+
+ # Get into "fun${n}()".
+ gdb_test "advance fun${n}" \
+ "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
+ "advance to fun<n> for finish; ${tests}"
+
+ # Check that the program invalidated the relevant global.
+ gdb_test "p/c L${n}" " = [zed $n]" "zed L<n> for finish; ${tests}"
+
+ # Finish the function, set 'finish_value_known" to non-empty if
+ # the return-value was found.
+
+ set test "finish foo<n>; ${tests}"
+ set finish_value_known 1
+ gdb_test_multiple "finish" "${test}" {
+ -re "Value returned is .*${gdb_prompt} $" {
+ pass "${test}"
+ }
+ -re "Cannot determine contents.*${gdb_prompt} $" {
+ # Expected bad value. For the moment this is ok.
+ set finish_value_known 0
+ pass "${test}"
+ }
+ }
+
+ # Re-print the last (return-value) using the more robust
+ # "p/c". If no return value was found, the 'Z' from the previous
+ # check that the variable was cleared, is printed.
+ set test "value foo<n> finished; ${tests}"
+ gdb_test_multiple "p/c" "${test}" {
+ -re "[foo ${n}]\[\r\n\]+${gdb_prompt} $" {
+ if $finish_value_known {
+ pass "${test}"
+ } else {
+ # This contradicts the above claim that GDB didn't
+ # know the location of the return-value.
+ fail "${test}"
+ }
+ }
+ -re "[zed ${n}]\[\r\n\]+${gdb_prompt} $" {
+ # The value didn't get found. This is "expected".
+ if $finish_value_known {
+ # This contradicts the above claim that GDB did
+ # know the location of the return-value.
+ fail "${test}"
+ } else {
+ pass "${test}"
+ }
+ }
+ }
+
+ # Finally, check that "return" and finish" have consistent
+ # behavior.
+
+ # Since "finish" works in more cases than "return" (see
+ # RETURN_VALUE_ABI_RETURNS_ADDRESS and
+ # RETURN_VALUE_ABI_PRESERVES_ADDRESS), the "return" value being
+ # known implies that the "finish" value is known (but not the
+ # reverse).
+
+ set test "return value known implies finish value known; ${tests}"
+ if {$return_value_known && ! $finish_value_known} {
+ kfail gdb/1444 "${test}"
+ } else {
+ pass "${test}"
+ }
}
-do_function_calls;
+# ABIs pass anything >8 or >16 bytes in memory but below that things
+# randomly use register and/and structure conventions. Check all
+# possible sized char structs in that range. But only a restricted
+# range of the other types.
+
+# NetBSD/PPC returns "unnatural" (3, 5, 6, 7) sized structs in memory.
+
+# d10v is weird. 5/6 byte structs go in memory. 2 or more char
+# structs go in memory. Everything else is in a register!
+
+# Test every single char struct from 1..17 in size. This is what the
+# original "structs" test was doing.
+
+start_structs_test { tc }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_calls 6
+test_struct_calls 7
+test_struct_calls 8
+test_struct_calls 9
+test_struct_calls 10
+test_struct_calls 11
+test_struct_calls 12
+test_struct_calls 13
+test_struct_calls 14
+test_struct_calls 15
+test_struct_calls 16
+test_struct_calls 17
+test_struct_returns 1
+test_struct_returns 2
+test_struct_returns 3
+test_struct_returns 4
+test_struct_returns 5
+test_struct_returns 6
+test_struct_returns 7
+test_struct_returns 8
+
+
+# Let the fun begin.
+
+# Assuming that any integer struct larger than 8 bytes goes in memory,
+# come up with many and varied combinations of a return struct. For
+# "struct calls" test just beyond that 8 byte boundary, for "struct
+# returns" test up to that boundary.
+
+# For floats, assumed that up to two struct elements can be stored in
+# floating point registers, regardless of their size.
+
+# The approx size of each structure it is computed assumed that tc=1,
+# ts=2, ti=4, tl=4, tll=8, tf=4, td=8, tld=16, and that all fields are
+# naturally aligned. Padding being added where needed. Note that
+# these numbers are just approx, the d10v has ti=2, a 64-bit has has
+# tl=8.
+
+# Approx size: 2, 4, ...
+start_structs_test { ts }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_returns 1
+test_struct_returns 2
+test_struct_returns 3
+test_struct_returns 4
+
+# Approx size: 4, 8, ...
+start_structs_test { ti }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_calls 3
+test_struct_returns 1
+test_struct_returns 2
+
+# Approx size: 4, 8, ...
+start_structs_test { tl }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_calls 3
+test_struct_returns 1
+test_struct_returns 2
+
+# Approx size: 8, 16, ...
+start_structs_test { tll }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_returns 1
+
+# Approx size: 4, 8, ...
+start_structs_test { tf }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_calls 3
+test_struct_returns 1
+test_struct_returns 2
+
+# Approx size: 8, 16, ...
+start_structs_test { td }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_returns 1
+
+# Approx size: 16, 32, ...
+start_structs_test { tld }
+test_struct_calls 1
+test_struct_calls 2
+test_struct_returns 1
+
+# Approx size: 2+1=3, 4, ...
+start_structs_test { ts tc }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_calls 6
+test_struct_calls 7
+test_struct_calls 8
+test_struct_returns 2
+
+# Approx size: 4+1=5, 6, ...
+start_structs_test { ti tc }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_calls 6
+test_struct_returns 2
+
+# Approx size: 4+1=5, 6, ...
+start_structs_test { tl tc }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_calls 6
+test_struct_returns 2
+
+# Approx size: 8+1=9, 10, ...
+start_structs_test { tll tc }
+test_struct_calls 2
+
+# Approx size: 4+1=5, 6, ...
+start_structs_test { tf tc }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_calls 6
+test_struct_returns 2
+
+# Approx size: 8+1=9, 10, ...
+start_structs_test { td tc }
+test_struct_calls 2
+
+# Approx size: 16+1=17, 18, ...
+start_structs_test { tld tc }
+test_struct_calls 2
+
+# Approx size: (1+1)+2=4, 6, ...
+start_structs_test { tc ts }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_calls 5
+test_struct_calls 6
+test_struct_returns 2
+
+# Approx size: (1+3)+4=8, 12, ...
+start_structs_test { tc ti }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_returns 2
+
+# Approx size: (1+3)+4=8, 12, ...
+start_structs_test { tc tl }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+test_struct_returns 2
+
+# Approx size: (1+7)+8=16, 24, ...
+start_structs_test { tc tll }
+test_struct_calls 2
+
+# Approx size: (1+3)+4=8, 12, ...
+start_structs_test { tc tf }
+test_struct_calls 2
+test_struct_calls 3
+test_struct_calls 4
+
+# Approx size: (1+7)+8=16, 24, ...
+start_structs_test { tc td }
+test_struct_calls 2
+
+# Approx size: (1+15)+16=32, 48, ...
+start_structs_test { tc tld }
+test_struct_calls 2
+
+# Some float combinations
+
+# Approx size: 8+4=12, 16, ...
+# d10v: 4+4=8, 12, ...
+start_structs_test { td tf }
+test_struct_calls 2
+test_struct_returns 2
-gdb_stop_suppressing_tests;
+# Approx size: (4+4)+8=16, 32, ...
+# d10v: 4+4=8, 12, ...
+start_structs_test { tf td }
+test_struct_calls 2
+test_struct_returns 2
return 0
projects / thirdparty / binutils-gdb.git / blobdiff