# Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004 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 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}] != "" } {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
# 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_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
# APPLE LOCAL: Works on powerpc64-apple-darwin*
#setup_kfail "powerpc64*-*-*" 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
# APPLE LOCAL: Works on powerpc64-apple-darwin*
#setup_kfail "powerpc64*-*-*" 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
# APPLE LOCAL: Works on powerpc64-apple-darwin*
#setup_kfail "powerpc64*-*-*" 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.
global all_registers_content
set all_registers_content ""
proc do_get_all_registers { } {
global gdb_prompt
global expect_out
global all_registers_content
set all_registers_content ""
send_gdb "info all-registers\n"
gdb_expect {
-re "info all-registers\r\n(.*)$gdb_prompt $" {
set all_registers_content $expect_out(1,string)
# APPLE LOCAL: Our GDB occasionally writes out a second \r
# at the end of the line when running under expect (filed
# as #). It's not really relevant to this test-case, and
# intermittent failures are annoying, so let's just strip
# them out here so we won't end up messing up the compares
# later.
regsub -all \r\r $all_registers_content \r all_registers_content
}
default {}
}
}
# 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.
do_get_all_registers
set old_reg_content $all_registers_content
# Perform function calls.
do_function_calls
# Check if all registers still have the same value.
do_get_all_registers
set new_reg_content $all_registers_content
if ![string compare $old_reg_content $new_reg_content] then {
pass "gdb function calls preserve register contents"
} else {
set old_reg_content $all_registers_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 {
do_get_all_registers
set new_reg_content $all_registers_content
if ![string compare $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 {
do_get_all_registers
set new_reg_content $all_registers_content
if ![string compare $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 {
do_get_all_registers
set new_reg_content $all_registers_content
if ![string compare $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"
do_get_all_registers
set new_reg_content $all_registers_content
if ![string compare $old_reg_content $new_reg_content] then {
pass "nested call dummies preserve register contents"
} else {
fail "nested call dummies preserve register contents"
}
return 0