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Re: [patch/rfc] Rewrite "structs" testcase
- From: Andrew Cagney <ac131313 at redhat dot com>
- To: Michael Elizabeth Chastain <mec at shout dot net>
- Cc: gdb-patches at sources dot redhat dot com
- Date: Fri, 07 Nov 2003 15:35:18 -0500
- Subject: Re: [patch/rfc] Rewrite "structs" testcase
- References: <200311062044.hA6KiJDA006769@duracef.shout.net>
Ah, this version is much beter.
The results are:
PASS FAIL
gcc 2.95.3 -gdwarf-2 290 3
gcc 2.95.3 -gstabs+ 290 3
gcc 3.3.2 -gdwarf-2 290 3
gcc 3.3.2 -gstabs+ 290 3
The three FAIL results are:
p/c fun1()^M
$1 = {a = 0x08044004c400000000000000}^M
(gdb) FAIL: gdb.base/structs.exp: p/c fun1() for call-tld 1
p/c L1^M
$3 = {a = 0x00004004c400000000000000}^M
(gdb) FAIL: gdb.base/structs.exp: p/c L1 for call-tld 1
p/c L1^M
$1 = {a = 0 '\0'}^M
(gdb) FAIL: gdb.base/structs.exp: p/c L1 for return-tc
All the test names are unique.
Here's today's version (...). The big change is that I've managed to
reduce the number of different programs being built - each variant is
now only built/run once - should help with remote testing.
As for how xfail/kfail are specified, it isn't pretty but it appears to
work :-( See if I can think of a simplification.
Andrew
/* This testcase is part of GDB, the GNU debugger.
Copyright 1996, 1999, 2003 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 */
/* Useful abreviations. */
typedef void t;
typedef char tc;
typedef short ts;
typedef int ti;
typedef long tl;
typedef long long tll;
typedef float tf;
typedef double td;
typedef long double tld;
/* Force the type of each field. */
#ifndef tA
typedef t tA;
#endif
#ifndef tB
typedef tA tB;
#endif
#ifndef tC
typedef tB tC;
#endif
#ifndef tD
typedef tC tD;
#endif
#ifndef tE
typedef tD tE;
#endif
#ifndef tF
typedef tE tF;
#endif
#ifndef tG
typedef tF tG;
#endif
#ifndef tH
typedef tG tH;
#endif
#ifndef tI
typedef tH tI;
#endif
#ifndef tJ
typedef tI tJ;
#endif
#ifndef tK
typedef tJ tK;
#endif
#ifndef tL
typedef tK tL;
#endif
#ifndef tM
typedef tL tM;
#endif
#ifndef tN
typedef tM tN;
#endif
#ifndef tO
typedef tN tO;
#endif
#ifndef tP
typedef tO tP;
#endif
#ifndef tQ
typedef tP tQ;
#endif
#ifndef tR
typedef tQ tR;
#endif
struct struct1 {tA a;};
struct struct2 {tA a; tB b;};
struct struct3 {tA a; tB b; tC c; };
struct struct4 {tA a; tB b; tC c; tD d; };
struct struct5 {tA a; tB b; tC c; tD d; tE e; };
struct struct6 {tA a; tB b; tC c; tD d; tE e; tF f; };
struct struct7 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; };
struct struct8 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; };
struct struct9 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; };
struct struct10 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; };
struct struct11 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; };
struct struct12 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; };
struct struct13 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; tM m; };
struct struct14 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; tM m; tN n; };
struct struct15 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; tM m; tN n; tO o; };
struct struct16 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; tM m; tN n; tO o; tP p; };
struct struct17 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; tM m; tN n; tO o; tP p; tQ q; };
struct struct18 {tA a; tB b; tC c; tD d; tE e; tF f; tG g; tH h; tI i; tJ j; tK k; tL l; tM m; tN n; tO o; tP p; tQ q; tR r; };
struct struct1 foo1 = {'1'}, L1;
struct struct2 foo2 = {'a','2'}, L2;
struct struct3 foo3 = {'1','b','3'}, L3;
struct struct4 foo4 = {'a','2','c','4'}, L4;
struct struct5 foo5 = {'1','b','3','d','5'}, L5;
struct struct6 foo6 = {'a','2','c','4','e','6'}, L6;
struct struct7 foo7 = {'1','b','3','d','5','f','7'}, L7;
struct struct8 foo8 = {'a','2','c','4','e','6','g','8'}, L8;
struct struct9 foo9 = {'1','b','3','d','5','f','7','h','9'}, L9;
struct struct10 foo10 = {'a','2','c','4','e','6','g','8','i','A'}, L10;
struct struct11 foo11 = {'1','b','3','d','5','f','7','h','9','j','B'}, L11;
struct struct12 foo12 = {'a','2','c','4','e','6','g','8','i','A','k','C'}, L12;
struct struct13 foo13 = {'1','b','3','d','5','f','7','h','9','j','B','l','D'}, L13;
struct struct14 foo14 = {'a','2','c','4','e','6','g','8','i','A','k','C','m','E'}, L14;
struct struct15 foo15 = {'1','b','3','d','5','f','7','h','9','j','B','l','D','n','F'}, L15;
struct struct16 foo16 = {'a','2','c','4','e','6','g','8','i','A','k','C','m','E','o','G'}, L16;
struct struct17 foo17 = {'1','b','3','d','5','f','7','h','9','j','B','l','D','n','F','p','H'}, L17;
struct struct18 foo18 = {'a','2','c','4','e','6','g','8','i','A','k','C','m','E','o','G','q','I'}, L18;
struct struct1 fun1()
{
return foo1;
}
struct struct2 fun2()
{
return foo2;
}
struct struct3 fun3()
{
return foo3;
}
struct struct4 fun4()
{
return foo4;
}
struct struct5 fun5()
{
return foo5;
}
struct struct6 fun6()
{
return foo6;
}
struct struct7 fun7()
{
return foo7;
}
struct struct8 fun8()
{
return foo8;
}
struct struct9 fun9()
{
return foo9;
}
struct struct10 fun10()
{
return foo10;
}
struct struct11 fun11()
{
return foo11;
}
struct struct12 fun12()
{
return foo12;
}
struct struct13 fun13()
{
return foo13;
}
struct struct14 fun14()
{
return foo14;
}
struct struct15 fun15()
{
return foo15;
}
struct struct16 fun16()
{
return foo16;
}
struct struct17 fun17()
{
return foo17;
}
struct struct18 fun18()
{
return foo18;
}
#ifdef PROTOTYPES
void Fun1(struct struct1 foo1)
#else
void Fun1(foo1)
struct struct1 foo1;
#endif
{
L1 = foo1;
}
#ifdef PROTOTYPES
void Fun2(struct struct2 foo2)
#else
void Fun2(foo2)
struct struct2 foo2;
#endif
{
L2 = foo2;
}
#ifdef PROTOTYPES
void Fun3(struct struct3 foo3)
#else
void Fun3(foo3)
struct struct3 foo3;
#endif
{
L3 = foo3;
}
#ifdef PROTOTYPES
void Fun4(struct struct4 foo4)
#else
void Fun4(foo4)
struct struct4 foo4;
#endif
{
L4 = foo4;
}
#ifdef PROTOTYPES
void Fun5(struct struct5 foo5)
#else
void Fun5(foo5)
struct struct5 foo5;
#endif
{
L5 = foo5;
}
#ifdef PROTOTYPES
void Fun6(struct struct6 foo6)
#else
void Fun6(foo6)
struct struct6 foo6;
#endif
{
L6 = foo6;
}
#ifdef PROTOTYPES
void Fun7(struct struct7 foo7)
#else
void Fun7(foo7)
struct struct7 foo7;
#endif
{
L7 = foo7;
}
#ifdef PROTOTYPES
void Fun8(struct struct8 foo8)
#else
void Fun8(foo8)
struct struct8 foo8;
#endif
{
L8 = foo8;
}
#ifdef PROTOTYPES
void Fun9(struct struct9 foo9)
#else
void Fun9(foo9)
struct struct9 foo9;
#endif
{
L9 = foo9;
}
#ifdef PROTOTYPES
void Fun10(struct struct10 foo10)
#else
void Fun10(foo10)
struct struct10 foo10;
#endif
{
L10 = foo10;
}
#ifdef PROTOTYPES
void Fun11(struct struct11 foo11)
#else
void Fun11(foo11)
struct struct11 foo11;
#endif
{
L11 = foo11;
}
#ifdef PROTOTYPES
void Fun12(struct struct12 foo12)
#else
void Fun12(foo12)
struct struct12 foo12;
#endif
{
L12 = foo12;
}
#ifdef PROTOTYPES
void Fun13(struct struct13 foo13)
#else
void Fun13(foo13)
struct struct13 foo13;
#endif
{
L13 = foo13;
}
#ifdef PROTOTYPES
void Fun14(struct struct14 foo14)
#else
void Fun14(foo14)
struct struct14 foo14;
#endif
{
L14 = foo14;
}
#ifdef PROTOTYPES
void Fun15(struct struct15 foo15)
#else
void Fun15(foo15)
struct struct15 foo15;
#endif
{
L15 = foo15;
}
#ifdef PROTOTYPES
void Fun16(struct struct16 foo16)
#else
void Fun16(foo16)
struct struct16 foo16;
#endif
{
L16 = foo16;
}
#ifdef PROTOTYPES
void Fun17(struct struct17 foo17)
#else
void Fun17(foo17)
struct struct17 foo17;
#endif
{
L17 = foo17;
}
#ifdef PROTOTYPES
void Fun18(struct struct18 foo18)
#else
void Fun18(foo18)
struct struct18 foo18;
#endif
{
L18 = foo18;
}
zed ()
{
L1.a = L2.a = L3.a = L4.a = L5.a = L6.a = L7.a = L8.a = L9.a = L10.a = L11.a = L12.a = L13.a = L14.a = L15.a = L16.a = L17.a = L18.a = 'Z';
L2.b = L3.b = L4.b = L5.b = L6.b = L7.b = L8.b = L9.b = L10.b = L11.b = L12.b = L13.b = L14.b = L15.b = L16.b = L17.b = L18.b = 'Z';
L3.c = L4.c = L5.c = L6.c = L7.c = L8.c = L9.c = L10.c = L11.c = L12.c = L13.c = L14.c = L15.c = L16.c = L17.c = L18.c = 'Z';
L4.d = L5.d = L6.d = L7.d = L8.d = L9.d = L10.d = L11.d = L12.d = L13.d = L14.d = L15.d = L16.d = L17.d = L18.d = 'Z';
L5.e = L6.e = L7.e = L8.e = L9.e = L10.e = L11.e = L12.e = L13.e = L14.e = L15.e = L16.e = L17.e = L18.e = 'Z';
L6.f = L7.f = L8.f = L9.f = L10.f = L11.f = L12.f = L13.f = L14.f = L15.f = L16.f = L17.f = L18.f = 'Z';
L7.g = L8.g = L9.g = L10.g = L11.g = L12.g = L13.g = L14.g = L15.g = L16.g = L17.g = L18.g = 'Z';
L8.h = L9.h = L10.h = L11.h = L12.h = L13.h = L14.h = L15.h = L16.h = L17.h = L18.h = 'Z';
L9.i = L10.i = L11.i = L12.i = L13.i = L14.i = L15.i = L16.i = L17.i = L18.i = 'Z';
L10.j = L11.j = L12.j = L13.j = L14.j = L15.j = L16.j = L17.j = L18.j = 'Z';
L11.k = L12.k = L13.k = L14.k = L15.k = L16.k = L17.k = L18.k = 'Z';
L12.l = L13.l = L14.l = L15.l = L16.l = L17.l = L18.l = 'Z';
L13.m = L14.m = L15.m = L16.m = L17.m = L18.m = 'Z';
L14.n = L15.n = L16.n = L17.n = L18.n = 'Z';
L15.o = L16.o = L17.o = L18.o = 'Z';
L16.p = L17.p = L18.p = 'Z';
L17.q = L18.q = 'Z';
L18.r = 'Z';
}
int main()
{
#ifdef usestubs
set_debug_traps();
breakpoint();
#endif
/* TEST C FUNCTIONS # 1 */
L1 = fun1();
L2 = fun2();
L3 = fun3();
L4 = fun4();
L5 = fun5();
L6 = fun6();
L7 = fun7();
L8 = fun8();
L9 = fun9();
L10 = fun10();
L11 = fun11();
L12 = fun12();
L13 = fun13();
L14 = fun14();
L15 = fun15();
L16 = fun16();
L17 = fun17();
L18 = fun18();
/* TEST C FUNCTIONS # 2 */
L1 = fun1();
L2 = fun2();
L3 = fun3();
L4 = fun4();
L5 = fun5();
L6 = fun6();
L7 = fun7();
L8 = fun8();
L9 = fun9();
L10 = fun10();
L11 = fun11();
L12 = fun12();
L13 = fun13();
L14 = fun14();
L15 = fun15();
L16 = fun16();
L17 = fun17();
L18 = fun18();
Fun1(foo1);
Fun2(foo2);
Fun3(foo3);
Fun4(foo4);
Fun5(foo5);
Fun6(foo6);
Fun7(foo7);
Fun8(foo8);
Fun9(foo9);
Fun10(foo10);
Fun11(foo11);
Fun12(foo12);
Fun13(foo13);
Fun14(foo14);
Fun15(foo15);
Fun16(foo16);
Fun17(foo17);
Fun18(foo18);
return 0;
}
# This testcase is part of GDB, the GNU debugger.
# Copyright 1996, 1997, 1999, 2003 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
if $tracelevel then {
strace $tracelevel
}
set prms_id 0
set bug_id 0
# Some targets can't call functions, 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 testfile "structs"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
# Create and source the file that provides information about the
# compiler used to compile the test case.
if [get_compiler_info ${binfile}] {
return -1;
}
# Compile a variant of structs.c with TYPES specifying the type of
# each of the first [llength $types] elements of all structures.
proc start_structs_test { types } {
global testfile
global srcfile
global binfile
global objdir
global subdir
global srcdir
# Create the additional flags
set flags "debug"
set name ""
set n 0
for {set n 0} {$n<[llength ${types}]} {incr n} {
set m [I2A ${n}]
set t [lindex ${types} $n]
lappend flags "additional_flags=-Dt${m}=${t}"
append name "-" "$t"
}
set binfile ${objdir}/${subdir}/${testfile}${name}
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"] != "" } {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
}
# Start with a fresh gdb.
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 - ${types}"
gdb_test "set print address off" "" "set print address off - ${types}"
gdb_test "set width 0" "" "set width 0 - ${types}"
# Advance to main
if { ![runto_main] } then {
gdb_suppress_tests;
}
# 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}" "${foo_t} - ${types}"
}
# The expected value for funN, LN and fooN. First element is empty to
# make indexing easier.
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]
}
proc i2a { n } {
return [string range "abcdefghijklmnopqrstuvwxyz" $n $n]
}
proc I2A { n } {
return [string toupper [i2a $n]]
}
# Mark the listed tuples as known failures. It expects strings of the
# form <tuple>[/[xk]fail].
proc setup_fails { fails bug } {
foreach f $fails {
set tuple [split $f /]
switch [lindex $tuple 1] {
kfail { setup_kfail [lindex $tuple 0] $bug }
xfail { setup_xfail [lindex $tuple 0] $bug }
default { setup_kfail [lindex $tuple 0] $bug }
}
}
}
# Check that GDB can always extract a struct-return value from an
# inferior function call. Since GDB always knows the location of an
# inferior function call's return value these should never fail
# Implemented by calling the parameterless function "fun$N" and then
# examining the return value printed by GDB.
proc call_struct_func { types n fails } {
global gdb_prompt
set test "call fun${n} - ${types}"
set result [foo ${n}]
# Call fun${n}, checking the printed return value.
send_gdb "p/c fun${n}()\n"
gdb_expect {
-re "$result\[\r\n\]+$gdb_prompt $" {
pass "${test}"
}
-re "$gdb_prompt $" {
# "Return value of a struct return function lost"
setup_fails $fails gdb/1443
fail "${test}"
}
timeout {
fail "${test} (timeout)"
}
}
}
# Check that GDB can always pass a structure to an inferior function.
# This test can never fail.
# Implemented by calling the one parameter function "Fun$N" which
# stores its parameter in the global variable "L$N". GDB then
# examining that global to confirm that the value is as expected.
proc pass_struct_func { types n fails } {
set test "pass foo${n} - ${types}"
gdb_test "call Fun${n}(foo${n})" "" "call Fun${n}(foo${n}); ${test}"
# "Return value of a struct return function lost"
setup_fails $fails gdb/1443
gdb_test "p/c L${n}" [foo ${n}] "p/c L${n}; ${test}"
}
# Check that GDB can correctly force the return of a function that has
# a struct result. Dependant on the ABI, it may, or may not be
# possible to make this work.
# The relevant code looks like "L{n} = fun{n}()". The test forces
# "fun{n}" to "return" with an explicit value. Since that code
# snippet will store the the returned value in "L{n}", its possible to
# confirm that things work by examining "L{n}".
proc return_struct_func { types n fails } {
global gdb_prompt
set test "return in fun${n} - ${types}"
# Get into a call of fun${n}
gdb_test "advance fun${n}" \
"fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
"advance fun${n}; ${test}"
# Now force a return. Be careful to only produce one PASS/FAIL.
send_gdb "return foo${n}\n"
gdb_expect {
-re "Make fun${n} return now.*y or n. $" {
send_gdb "y\n"
gdb_expect {
-re "L${n} *= fun${n}.*${gdb_prompt} $" {
# Need to step off the function call
gdb_test "next" "L.* *= fun.*" "${test}"
}
-re "${gdb_prompt} $" {
pass "${test}"
}
timeout {
fail "${test} (timeout)"
}
}
}
}
# Finally check that the value returned ended up in "L${n}".
setup_fails ${fails} gdb/1444
gdb_test "p/c L${n}" " = [foo ${n}]" "${test}"
}
# Check that GDB can always finish a struct-return function.
# Dependant on the ABI GDB may or may not be able to find the value
# returned by that function.
# The relevant code snippet is "L{n} = fun{n}()". The program is
# allowed to get into a call to "fun{n}" and that function is then
# finished. The returned value that GDB prints is then checked.
proc finish_struct_func { types n fails } {
set test "finish in fun${n} - ${types}"
# Get into "fun${n}()".
gdb_test "advance fun${n}" \
"fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \
"advance fun${n}; ${test}"
# Finish that function, this puts the return value in a
# convenience variable.
gdb_test "finish" "" "finish; ${test}"
# Finally, print the convenience variable in a consistent way.
# "$" is the most recent history variable.
setup_fails ${fails} gdb/1444
gdb_test {print/c $} [foo ${n}] "${test}"
}
# Test GDB's struct-return code.
# TYPES lists the type of the first N elements of each struct variant
# that is to be tested. TYPES also determines the number of elements
# in the first struct variant that will be tested.
# Structures with an increasing number of elements (the number of
# variants determined by CALLS (inferior function calls) and RETURNS
# (return command, finish command) are then tested.
proc test_structs { types calls returns } {
# Now compile, start and run-to-main the program.
start_structs_test ${types}
# Check that GDB can call a function that returns a structure.
for {set n 0} {$n<[llength $calls]} {incr n} {
set fails [lindex $calls $n]
set elements [expr [llength $types] + $n]
call_struct_func ${types} $elements ${fails}
pass_struct_func ${types} $elements ${fails}
}
# Check that GDB can correctly find a struct return value when a
# function either finishes, or is explicitly returned. Due to ABI
# restrictions, it isn't always possible to exercise this test.
# The above will have modified the L* globals, get
# around this by calling zed which "Z" everything.
gdb_test "call zed()" "" "zed return - ${types}"
gdb_test "p/c L1" " = {a = 90 'Z'}" "zed return ok - ${types}"
# Check that GDB can return a struct func
for {set n 0} {$n<[llength $returns]} {incr n} {
return_struct_func ${types} [expr [llength $types] + $n] [lindex $returns $n]
}
# The above will have modified the L* globals, get
# around this by calling zed which "Z" everything.
gdb_test "call zed()" "" "zed finish - ${types}"
gdb_test "p/c L1" " = {a = 90 'Z'}" "zed finish ok - ${types}"
# Check as many functions as possible
for {set n 0} {$n<[llength $returns]} {incr n} {
finish_struct_func ${types} [expr [llength $types] + $n] [lindex $returns $n]
}
gdb_stop_suppressing_tests;
}
# 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.
# On NetBSD, "unnatural" sized structs get returned in memory.
test_structs { tc } \
{ {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} {} } \
{ {} {} { powerpc-*-netbsd*/xfail } {} { powerpc-*-netbsd*/xfail } { powerpc-*-netbsd*/xfail } { powerpc-*-netbsd*/xfail } {} }
test_structs { ts } \
{ {} {} {} {} {} } \
{ {} {} { powerpc-*-netbsd*/xfail } {} }
test_structs { ti } \
{ {} {} {} } \
{ {} {} }
test_structs { tl } \
{ {} {} {} } \
{ {} {} }
test_structs { tll } \
{ {} {} } \
{ {} }
test_structs { tf } \
{ {} {} {} } \
{ {} {} }
test_structs { td } \
{ {} {} } \
{ {} }
test_structs { tld } \
{ {} } \
{ {} }
test_structs { ts tc } \
{ {} {} {} {} {} {} {} } \
{ {} }
test_structs { ti tc } \
{ {} {} {} {} {} } \
{ {} }
test_structs { tl tc } \
{ {} {} {} {} {} } \
{ {} }
test_structs { tll tc } \
{ {} } \
{ }
test_structs { tf tc } \
{ {} {} {} {} {} } \
{ {} }
test_structs { td tc } \
{ {} } \
{ }
test_structs { tld tc } \
{ {} } \
{ }
test_structs { tc ts } \
{ {} {} {} {} {} } \
{ {} }
test_structs { tc ti } \
{ {} {} {} } \
{ {} }
test_structs { tc tl } \
{ {} {} {} } \
{ {} }
test_structs { tc tll } \
{ {} } \
{ }
test_structs { tc tf } \
{ {} {} {} } \
{ {} }
test_structs { tc td } \
{ {} } \
{ }
test_structs { tc tld } \
{ {} } \
{ }
return 0