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old-cross-binutils/gdb/testsuite/gdb.base/callfuncs.exp
Joel Brobecker e22f8b7c8c Switch the license of all .exp files to GPLv3. 
Switch the license of all .f and .f90 files to GPLv3.
        Switch the license of all .s and .S files to GPLv3.
2007-08-23 18:14:19 +00:00

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# Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
# 2004, 2007 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/>.
# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu
# This file was written by Fred Fish. (fnf@cygnus.com)
# and modified by Bob Manson. (manson@cygnus.com)
if $tracelevel then {
strace $tracelevel
}
set prms_id 0
set bug_id 0
set testfile "callfuncs"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested callfuncs.exp
return -1
}
# Create and source the file that provides information about the compiler
# used to compile the test case.
if [get_compiler_info ${binfile}] {
return -1;
}
if {$hp_aCC_compiler} {
set prototypes 1
} else {
set prototypes 0
}
# Some targets can't do function calls, so don't even bother with this
# test.
if [target_info exists gdb,cannot_call_functions] {
setup_xfail "*-*-*" 2416
fail "This target can not call functions"
continue
}
# Set the current language to C. This counts as a test. If it
# fails, then we skip the other tests.
proc set_lang_c {} {
global gdb_prompt
send_gdb "set language c\n"
gdb_expect {
-re ".*$gdb_prompt $" {}
timeout { fail "set language c (timeout)" ; return 0; }
}
send_gdb "show language\n"
gdb_expect {
-re ".* source language is \"c\".*$gdb_prompt $" {
pass "set language to \"c\""
return 1
}
-re ".*$gdb_prompt $" {
fail "setting language to \"c\""
return 0
}
timeout {
fail "can't show language (timeout)"
return 0
}
}
}
# 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 gdb_prompt
# We need to up this because this can be really slow on some boards.
set timeout 60;
gdb_test "p t_char_values(0,0)" " = 0"
gdb_test "p t_char_values('a','b')" " = 1"
gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
gdb_test "p t_char_values('a',char_val2)" " = 1"
gdb_test "p t_char_values(char_val1,'b')" " = 1"
gdb_test "p t_short_values(0,0)" " = 0"
gdb_test "p t_short_values(10,-23)" " = 1"
gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
gdb_test "p t_short_values(10,short_val2)" " = 1"
gdb_test "p t_short_values(short_val1,-23)" " = 1"
gdb_test "p t_int_values(0,0)" " = 0"
gdb_test "p t_int_values(87,-26)" " = 1"
gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
gdb_test "p t_int_values(87,int_val2)" " = 1"
gdb_test "p t_int_values(int_val1,-26)" " = 1"
gdb_test "p t_long_values(0,0)" " = 0"
gdb_test "p t_long_values(789,-321)" " = 1"
gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
gdb_test "p t_long_values(789,long_val2)" " = 1"
gdb_test "p t_long_values(long_val1,-321)" " = 1"
if ![target_info exists gdb,skip_float_tests] {
gdb_test "p t_float_values(0.0,0.0)" " = 0"
# These next four tests fail on the mn10300.
# The first value is passed in regs, the other in memory.
# Gcc emits different stabs for the two parameters; the first is
# claimed to be a float, the second a double.
# dbxout.c in gcc claims this is the desired behavior.
setup_xfail "mn10300-*-*"
gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
setup_xfail "mn10300-*-*"
gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
setup_xfail "mn10300-*-*"
gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
setup_xfail "mn10300-*-*"
gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"
# Test passing of arguments which might not be widened.
gdb_test "p t_float_values2(0.0,0.0)" " = 0"
# Although PR 5318 mentions SunOS specifically, this seems
# to be a generic problem on quite a few platforms.
if $prototypes then {
setup_xfail "sparc-*-*" "mips*-*-*" 5318
if { ! [test_compiler_info gcc-*-*] } then {
setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
}
}
gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"
gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"
gdb_test "p t_double_values(0.0,0.0)" " = 0"
gdb_test "p t_double_values(45.654,-67.66)" " = 1"
gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
gdb_test "p t_double_values(45.654,double_val2)" " = 1"
gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
gdb_test "p t_double_int(99.0, 1)" " = 0"
gdb_test "p t_double_int(99.0, 99)" " = 1"
gdb_test "p t_int_double(99, 1.0)" " = 0"
gdb_test "p t_int_double(99, 99.0)" " = 1"
}
gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"
gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"
gdb_test "p doubleit(4)" " = 8"
gdb_test "p add(4,5)" " = 9"
gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
gdb_test "p t_func_values(func_val1,func_val2)" " = 1"
# GDB currently screws up the passing of function parameters for
# ABIs that use function descriptors. Instead of passing the
# address of te function descriptor, GDB passes the address of the
# function body. This results in the called function treating the
# first few instructions of the function proper as a descriptor
# and attempting a jump through that (a totally random address).
setup_kfail "rs6000*-*-aix*" gdb/1457
setup_kfail "powerpc*-*-aix*" gdb/1457
setup_kfail hppa*-*-hpux* gdb/1457
gdb_test "p t_func_values(add,func_val2)" " = 1"
setup_kfail "rs6000*-*-aix*" gdb/1457
setup_kfail "powerpc*-*-aix*" gdb/1457
setup_kfail hppa*-*-hpux* gdb/1457
gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
setup_kfail "rs6000*-*-aix*" gdb/1457
setup_kfail "powerpc*-*-aix*" gdb/1457
setup_kfail hppa*-*-hpux* gdb/1457
gdb_test "p t_call_add(add,3,4)" " = 7"
gdb_test "p t_call_add(func_val1,3,4)" " = 7"
gdb_test "p t_enum_value1(enumval1)" " = 1"
gdb_test "p t_enum_value1(enum_val1)" " = 1"
gdb_test "p t_enum_value1(enum_val2)" " = 0"
gdb_test "p t_enum_value2(enumval2)" " = 1"
gdb_test "p t_enum_value2(enum_val2)" " = 1"
gdb_test "p t_enum_value2(enum_val1)" " = 0"
gdb_test "p sum_args(1,{2})" " = 2"
gdb_test "p sum_args(2,{2,3})" " = 5"
gdb_test "p sum_args(3,{2,3,4})" " = 9"
gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"
gdb_test "p cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"
gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
"call inferior func with struct - returns char"
gdb_test "p t_structs_s(struct_val1)" "= 87" \
"call inferior func with struct - returns short"
gdb_test "p t_structs_i(struct_val1)" "= 76" \
"call inferior func with struct - returns int"
gdb_test "p t_structs_l(struct_val1)" "= 51" \
"call inferior func with struct - returns long"
gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
"call inferior func with struct - returns float"
gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
"call inferior func with struct - returns double"
gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
"call inferior func with struct - returns char *"
}
# Procedure to get current content of all registers.
proc fetch_all_registers {test} {
global gdb_prompt
set all_registers_lines {}
set bad -1
if {[gdb_test_multiple "info all-registers" $test {
-re "info all-registers\[\r\n\]+" {
exp_continue
}
-ex "The program has no registers now" {
set bad 1
exp_continue
}
-re "^bspstore\[ \t\]+\[^\r\n\]+\[\r\n\]+" {
if [istarget "ia64-*-*"] {
# Filter out bspstore which is specially tied to bsp,
# giving spurious differences.
} else {
lappend all_registers_lines $expect_out(0,string)
}
exp_continue
}
-re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\[\r\n\]+" {
lappend all_registers_lines $expect_out(0,string)
exp_continue
}
-re ".*$gdb_prompt $" {
incr bad
}
-re "^\[^\r\n\]+\[\r\n\]+" {
if {!$bad} {
warning "Unrecognized output: $expect_out(0,string)"
set bad 1
}
exp_continue
}
}] != 0} {
return {}
}
if {$bad} {
fail $test
return {}
}
pass $test
return $all_registers_lines
}
# Start with a fresh gdb.
gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
gdb_test "set print sevenbit-strings" ""
gdb_test "set print address off" ""
gdb_test "set width 0" ""
if { $hp_aCC_compiler } {
# Do not set language explicitly to 'C'. This will cause aCC
# tests to fail because promotion rules are different. Just let
# the language be set to the default.
if { ![runto_main] } {
gdb_suppress_tests;
}
# However, turn off overload-resolution for aCC. Having it on causes
# a lot of failures.
gdb_test "set overload-resolution 0" ".*"
} else {
if { ![set_lang_c] } {
gdb_suppress_tests;
} else {
if { ![runto_main] } {
gdb_suppress_tests;
}
}
}
get_debug_format
# Make sure that malloc gets called and that the floating point unit
# is initialized via a call to t_double_values.
gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \
"next to t_double_values"
gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \
"next to t_structs_c"
# Save all register contents.
set old_reg_content [fetch_all_registers "retrieve original register contents"]
# Perform function calls.
do_function_calls
# Check if all registers still have the same value.
set new_reg_content [fetch_all_registers \
"register contents after gdb function calls"]
if {$old_reg_content == $new_reg_content} then {
pass "gdb function calls preserve register contents"
} else {
set old_reg_content $new_reg_content
fail "gdb function calls preserve register contents"
}
# Set breakpoint at a function we will call from gdb.
gdb_breakpoint add
# Call function (causing a breakpoint hit in the call dummy) and do a continue,
# make sure we are back at main and still have the same register contents.
gdb_test "print add(4,5)" \
"The program being debugged stopped while.*" \
"stop at breakpoint in call dummy function"
gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"
if ![gdb_test "bt 2" \
"#0 main.*" \
"bt after continuing from call dummy breakpoint"] then {
set new_reg_content [fetch_all_registers \
"register contents after stop in call dummy"]
if {$old_reg_content == $new_reg_content} then {
pass "continue after stop in call dummy preserves register contents"
} else {
fail "continue after stop in call dummy preserves register contents"
}
}
# Call function (causing a breakpoint hit in the call dummy) and do a finish,
# make sure we are back at main and still have the same register contents.
gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
"call function causing a breakpoint then do a finish"
gdb_test "finish" \
"Value returned is .* = 9" \
"finish from call dummy breakpoint returns correct value"
if ![gdb_test "bt 2" \
"#0 main.*" \
"bt after finishing from call dummy breakpoint"] then {
set new_reg_content [fetch_all_registers \
"register contents after finish in call dummy"]
if {$old_reg_content == $new_reg_content} then {
pass "finish after stop in call dummy preserves register contents"
} else {
fail "finish after stop in call dummy preserves register contents"
}
}
# Call function (causing a breakpoint hit in the call dummy) and do a return
# with a value, make sure we are back at main with the same register contents.
gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
"call function causing a breakpoint and then do a return"
if ![gdb_test "return 7" \
"#0 main.*" \
"back at main after return from call dummy breakpoint" \
"Make add return now. .y or n.*" \
"y"] then {
set new_reg_content [fetch_all_registers \
"register contents after return in call dummy"]
if {$old_reg_content == $new_reg_content} then {
pass "return after stop in call dummy preserves register contents"
} else {
fail "return after stop in call dummy preserves register contents"
}
}
# Call function (causing a breakpoint hit in the call dummy), and
# call another function from the call dummy frame (thereby setting up
# several nested call dummy frames). Test that backtrace and finish
# work when several call dummies are nested.
gdb_breakpoint sum10
gdb_breakpoint t_small_values
gdb_test "print add(2,3)" "The program being debugged stopped while.*" \
"stop at nested call level 1"
gdb_test "backtrace" \
"\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
"backtrace at nested call level 1"
gdb_test "print add(4,5)" "The program being debugged stopped while.*" \
"stop at nested call level 2"
gdb_test "backtrace" \
"\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
"backtrace at nested call level 2"
gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \
"The program being debugged stopped while.*" \
"stop at nested call level 3"
gdb_test "backtrace" \
"\#0 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1 <function called from gdb>.*\#2 add \\(a=4, b=5\\).*\#3 <function called from gdb>.*\#4 add \\(a=2, b=3\\).*\#5 <function called from gdb>.*\#6 main.*" \
"backtrace at nested call level 3"
gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \
"The program being debugged stopped while.*" \
"stop at nested call level 4"
gdb_test "backtrace" \
"\#0 t_small_values \\(arg1=1 '.001', arg2=3, arg3=5, arg4=7 '.a', arg5=9, arg6=11 '.v', arg7=13, arg8=15, arg9=17, arg10=19\\).*\#2 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#3 <function called from gdb>.*\#4 add \\(a=4, b=5\\).*\#5 <function called from gdb>.*\#6 add \\(a=2, b=3\\).*\#7 <function called from gdb>.*\#8 main.*" \
"backtrace at nested call level 4"
gdb_test "finish" "Value returned is .* = 100" \
"Finish from nested call level 4"
gdb_test "backtrace" \
"\#0 sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1 <function called from gdb>.*\#2 add \\(a=4, b=5\\).*\#3 <function called from gdb>.*\#4 add \\(a=2, b=3\\).*\#5 <function called from gdb>.*\#6 main.*" \
"backtrace after finish from nested call level 4"
gdb_test "finish" "Value returned is .* = 110" \
"Finish from nested call level 3"
gdb_test "backtrace" \
"\#0 add \\(a=4, b=5\\).*\#1 <function called from gdb>.*\#2 add \\(a=2, b=3\\).*\#3 <function called from gdb>.*\#4 main.*" \
"backtrace after finish from nested call level 3"
gdb_test "finish" "Value returned is .* = 9" \
"Finish from nested call level 2"
gdb_test "backtrace" \
"\#0 add \\(a=2, b=3\\).*\#1 <function called from gdb>.*\#2 main.*" \
"backtrace after finish from nested call level 2"
gdb_test "finish" "Value returned is .* = 5" \
"Finish from nested call level 1"
gdb_test "backtrace" "\#0 main .*" \
"backtrace after finish from nested call level 1"
set new_reg_content [fetch_all_registers \
"register contents after nested call dummies"]
if {$old_reg_content == $new_reg_content} then {
pass "nested call dummies preserve register contents"
} else {
fail "nested call dummies preserve register contents"
}
return 0
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