X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Ftestsuite%2Fgdb.base%2Fcallfuncs.exp;h=e3f49f98b1752a2dcab103d5cd7a097aaf873014;hb=ecb33a79498ac5cdf7f284b64585e343bd1bbba3;hp=1f0ca64ea1e1ebceb0f77bacc48bf78892642b2e;hpb=787f6220773d9174a9675dedd3bbfc8f070511a6;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/testsuite/gdb.base/callfuncs.exp b/gdb/testsuite/gdb.base/callfuncs.exp index 1f0ca64ea1..e3f49f98b1 100644 --- a/gdb/testsuite/gdb.base/callfuncs.exp +++ b/gdb/testsuite/gdb.base/callfuncs.exp @@ -1,90 +1,54 @@ -# Copyright (C) 92, 96, 1997 Free Software Foundation, Inc. +# Copyright 1992-2013 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. - -# Please email any bugs, comments, and/or additions to this file to: -# bug-gdb@prep.ai.mit.edu +# along with this program. If not, see . # This file was written by Fred Fish. (fnf@cygnus.com) # and modified by Bob Manson. (manson@cygnus.com) -if $tracelevel then { - strace $tracelevel +standard_testfile + +set compile_flags {debug} +if [support_complex_tests] { + lappend compile_flags "additional_flags=-DTEST_COMPLEX" } -set prms_id 0 -set bug_id 0 - -set testfile "callfuncs" -set srcfile ${testfile}.c -set binfile ${objdir}/${subdir}/${testfile} - -set prototypes 1 -if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { - set prototypes 0; - # built the second test case since we can't use prototypes - warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES" - if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DNO_PROTOTYPES}] != "" } { - perror "Couldn't compile ${testfile}.c" - return -1 - } +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $compile_flags] != "" } { + 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 ${binfile}] { - return -1; +if [get_compiler_info] { + return -1 +} + +if {$hp_aCC_compiler} { + set prototypes 1 +} else { + set prototypes 0 } -# The a29k can't call functions, so don't even bother with this test. +# 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 prompt - - send_gdb "set language c\n" - expect { - -re ".*$prompt $" {} - timeout { fail "set language c (timeout)" ; return 0 } - } - - send_gdb "show language\n" - expect { - -re ".* source language is \"c\".*$prompt $" { - pass "set language to \"c\"" - return 1 - } - -re ".*$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. @@ -94,7 +58,14 @@ proc set_lang_c {} { proc do_function_calls {} { global prototypes - global gcc_compiled + global gdb_prompt + + # We need to up this because this can be really slow on some boards. + set timeout 60 + + # If any of these calls segv we don't want to affect subsequent tests. + # E.g., we want to ensure register values are restored. + gdb_test_no_output "set unwindonsignal on" gdb_test "p t_char_values(0,0)" " = 0" gdb_test "p t_char_values('a','b')" " = 1" @@ -120,31 +91,79 @@ proc do_function_calls {} { gdb_test "p t_long_values(789,long_val2)" " = 1" gdb_test "p t_long_values(long_val1,-321)" " = 1" - gdb_test "p t_float_values(0.0,0.0)" " = 0" - gdb_test "p t_float_values(3.14159,-2.3765)" " = 1" - gdb_test "p t_float_values(float_val1,float_val2)" " = 1" - gdb_test "p t_float_values(3.14159,float_val2)" " = 1" - 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 $prototypes then { - setup_xfail "hppa*-*-*" "sparc-*-*" "mips*-*-*" 5318 - if {!$gcc_compiled} then { - setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318 + 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. + # These tests also fail for RealView, because GDB can not tell that + # the function is unprototyped. + setup_xfail "mn10300-*-*" + if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" } + gdb_test "p t_float_values(3.14159,-2.3765)" " = 1" + setup_xfail "mn10300-*-*" + if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" } + gdb_test "p t_float_values(float_val1,float_val2)" " = 1" + setup_xfail "mn10300-*-*" + if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" } + gdb_test "p t_float_values(3.14159,float_val2)" " = 1" + setup_xfail "mn10300-*-*" + if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" } + 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_float_many_args (float_val1, float_val2, float_val3, float_val4, float_val5, float_val6, float_val7, float_val8, float_val9, float_val10, float_val11, float_val12, float_val13, float_val14, float_val15)" " = 1" "Call function with many float arguments." + + 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_many_args (double_val1, double_val2, double_val3, double_val4, double_val5, double_val6, double_val7, double_val8, double_val9, double_val10, double_val11, double_val12, double_val13, double_val14, double_val15)" " = 1" "Call function with many double arguments." + + 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_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" + if [support_complex_tests] { + gdb_test "p t_float_complex_values(fc1, fc2)" " = 1" + gdb_test "p t_float_complex_values(fc3, fc4)" " = 0" + + gdb_test "p t_float_complex_many_args(fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4, fc1, fc2, fc3, fc4)" " = 1" + gdb_test "p t_float_complex_many_args(fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1, fc1)" " = 0" + + gdb_test "p t_double_complex_values(dc1, dc2)" " = 1" + gdb_test "p t_double_complex_values(dc3, dc4)" " = 0" + + gdb_test "p t_double_complex_many_args(dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4, dc1, dc2, dc3, dc4)" " = 1" + gdb_test "p t_double_complex_many_args(dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1, dc1)" " = 0" + + gdb_test "p t_long_double_complex_values(ldc1, ldc2)" " = 1" + gdb_test "p t_long_double_complex_values(ldc3, ldc4)" " = 0" + gdb_test "p t_long_double_complex_many_args(ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4, ldc1, ldc2, ldc3, ldc4)" " = 1" + gdb_test "p t_long_double_complex_many_args(ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1,ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1, ldc1)" " = 0" + } gdb_test "p t_string_values(string_val2,string_val1)" " = 0" gdb_test "p t_string_values(string_val1,string_val2)" " = 1" @@ -163,26 +182,28 @@ proc do_function_calls {} { gdb_test "p t_func_values(func_val2,func_val1)" " = 0" gdb_test "p t_func_values(func_val1,func_val2)" " = 1" - # On the rs6000, we need to pass the address of the trampoline routine, - # not the address of add itself. I don't know how to go from add to - # the address of the trampoline. Similar problems exist on the HPPA, - # and in fact can present an unsolvable problem as the stubs may not - # even exist in the user's program. We've slightly recoded t_func_values - # to avoid such problems in the common case. This may or may not help - # the RS6000. - setup_xfail "rs6000*-*-*" - setup_xfail "powerpc*-*-*" + gdb_test "p function_struct.func(5)" " = 10" + gdb_test "p function_struct_ptr->func(10)" " = 20" + + # 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 gdb/1457 "rs6000*-*-aix*" + setup_kfail gdb/1457 "powerpc*-*-aix*" + setup_kfail gdb/1457 hppa*-*-hpux* gdb_test "p t_func_values(add,func_val2)" " = 1" - - setup_xfail "rs6000*-*-*" - setup_xfail "powerpc*-*-*" + setup_kfail gdb/1457 "rs6000*-*-aix*" + setup_kfail gdb/1457 "powerpc*-*-aix*" + setup_kfail gdb/1457 hppa*-*-hpux* gdb_test "p t_func_values(func_val1,doubleit)" " = 1" - - gdb_test "p t_call_add(func_val1,3,4)" " = 7" - - setup_xfail "rs6000*-*-*" - setup_xfail "powerpc*-*-*" + setup_kfail gdb/1457 "rs6000*-*-aix*" + setup_kfail gdb/1457 "powerpc*-*-aix*" + setup_kfail gdb/1457 hppa*-*-hpux* 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" @@ -196,27 +217,141 @@ proc do_function_calls {} { 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" + "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" - setup_xfail "i*86-*-*" - gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \ - "call inferior func with struct - returns float" - setup_xfail "i*86-*-*" - 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 *" + if ![target_info exists gdb,skip_float_tests] { + 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" + } + + if [support_complex_tests] { + + gdb_test "p t_structs_fc(struct_val1)" ".*= 3 \\+ 3 \\* I" \ + "call inferior func with struct - returns float _Complex" + + gdb_test "p t_structs_dc(struct_val1)" ".*= 4 \\+ 4 \\* I" \ + "call inferior func with struct - returns double _Complex" + + gdb_test "p t_structs_ldc(struct_val1)" "= 5 \\+ 5 \\* I" \ + "call inferior func with struct - returns long double _Complex" + } + + gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )? \"foo\"" \ + "call inferior func with struct - returns char *" + + # Restore default value. + gdb_test_no_output "set unwindonsignal off" +} + +# Procedure to get current content of all registers. +proc fetch_all_registers {test} { + global gdb_prompt + + set all_registers_lines {} + set bad -1 + # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer + # corrupting the next matches. + 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 "^last_break\[ \t\]+\[^\r\n\]+\r\n" { + if [istarget "s390*-*-*"] { + # Filter out last_break which is read-only, + # 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 +} + +proc rerun_and_prepare {} { + global hp_aCC_compiler + + 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_no_output "set overload-resolution 0" + } else { + if { ![runto_main] } { + gdb_suppress_tests + } + gdb_test_no_output "set language c" + } + + 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" } + # Start with a fresh gdb. gdb_exit @@ -224,18 +359,182 @@ gdb_start gdb_reinitialize_dir $srcdir/$subdir gdb_load ${binfile} -gdb_test "set print sevenbit-strings" "" -gdb_test "set print address off" "" -gdb_test "set width 0" "" +gdb_test_no_output "set print sevenbit-strings" +gdb_test_no_output "set print address off" +gdb_test_no_output "set width 0" + +rerun_and_prepare + +# Save all register contents. +set old_reg_content [fetch_all_registers "retrieve original register contents"] -if [set_lang_c] then { - if [runto_main] then { - gdb_test "next" ".*" - do_function_calls +# Perform function calls. +do_function_calls + +# Check if all registers still have the same value. +set new_reg_content [fetch_all_registers \ + "register contents after gdb function calls"] +if {$old_reg_content == $new_reg_content} then { + pass "gdb function calls preserve register contents" +} else { + set old_reg_content $new_reg_content + fail "gdb function calls preserve register contents" +} + +rerun_and_prepare +# Save all register contents. +set old_reg_content [fetch_all_registers "retrieve original register contents"] + +# Set breakpoint at a function we will call from gdb. +gdb_breakpoint add + +# Call function (causing a breakpoint hit in the call dummy) and do a continue, +# make sure we are back at main and still have the same register contents. +gdb_test "print add(4,5)" \ + "The program being debugged stopped while.*" \ + "stop at breakpoint in call dummy function" +gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint" +if ![gdb_test "bt 2" \ + "#0 main.*" \ + "bt after continuing from call dummy breakpoint"] then { + set new_reg_content [fetch_all_registers \ + "register contents after stop in call dummy"] + if {$old_reg_content == $new_reg_content} then { + pass "continue after stop in call dummy preserves register contents" + } else { + fail "continue after stop in call dummy preserves register contents" + } +} + +rerun_and_prepare +# Set breakpoint at a function we will call from gdb. +gdb_breakpoint add +# Save all register contents. +set old_reg_content [fetch_all_registers "retrieve original register contents"] + +# Call function (causing a breakpoint hit in the call dummy) and do a finish, +# make sure we are back at main and still have the same register contents. +gdb_test "print add(4,5)" "The program being debugged stopped while.*" \ + "call function causing a breakpoint then do a finish" +gdb_test "finish" \ + "Value returned is .* = 9" \ + "finish from call dummy breakpoint returns correct value" +if ![gdb_test "bt 2" \ + "#0 main.*" \ + "bt after finishing from call dummy breakpoint"] then { + set new_reg_content [fetch_all_registers \ + "register contents after finish in call dummy"] + if {$old_reg_content == $new_reg_content} then { + pass "finish after stop in call dummy preserves register contents" + } else { + fail "finish after stop in call dummy preserves register contents" + } +} + +rerun_and_prepare +# Set breakpoint at a function we will call from gdb. +gdb_breakpoint add +# Save all register contents. +set old_reg_content [fetch_all_registers "retrieve original register contents"] + +# Call function (causing a breakpoint hit in the call dummy) and do a return +# with a value, make sure we are back at main with the same register contents. +gdb_test "print add(4,5)" "The program being debugged stopped while.*" \ + "call function causing a breakpoint and then do a return" +if ![gdb_test "return 7" \ + "#0 main.*" \ + "back at main after return from call dummy breakpoint" \ + "Make add return now. .y or n.*" \ + "y"] then { + set new_reg_content [fetch_all_registers \ + "register contents after return in call dummy"] + if {$old_reg_content == $new_reg_content} then { + pass "return after stop in call dummy preserves register contents" } else { - fail "C function calling tests suppressed" + fail "return after stop in call dummy preserves register contents" } +} + +rerun_and_prepare +# Set breakpoint at a function we will call from gdb. +gdb_breakpoint add +set old_reg_content [fetch_all_registers "retrieve original 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 .*\#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 .*\#2 add \\(a=2, b=3\\).*\#3 .*\#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 .*\#2 add \\(a=4, b=5\\).*\#3 .*\#4 add \\(a=2, b=3\\).*\#5 .*\#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 .*\#4 add \\(a=4, b=5\\).*\#5 .*\#6 add \\(a=2, b=3\\).*\#7 .*\#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 .*\#2 add \\(a=4, b=5\\).*\#3 .*\#4 add \\(a=2, b=3\\).*\#5 .*\#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 .*\#2 add \\(a=2, b=3\\).*\#3 .*\#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 .*\#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 "C function calling tests suppressed" + fail "nested call dummies preserve register contents" } -return 0 + +# GDB should not crash by internal error on $sp underflow during the inferior +# call. It is OK it will stop on some: Cannot access memory at address 0x$hex. + +if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} { + gdb_test {set $old_sp = $sp} + + gdb_test {set $sp = 0} + gdb_test "call doubleit (1)" ".*" "sp == 0: call doubleit (1)" + + gdb_test {set $sp = -1} + gdb_test "call doubleit (1)" ".*" "sp == -1: call doubleit (1)" + + gdb_test {set $sp = $old_sp} +} + +# Test function descriptor resolution - the separate debug info .opd section +# handling vs. local labels `.L'... as `Lcallfunc' starts with `L'. + +gdb_test "print callfunc (Lcallfunc, 5)" " = 12" + +# Regression test for function pointer cast. +gdb_test "print *((int *(*) (void)) voidfunc)()" " = 23"