binutils-gdb/gdb/testsuite/gdb.base/cvexpr.c
Pedro Alves dc3a371e83 gdb/testsuite: Explicitly return from main
I've been playing with a board file that forces every testcase to
include a header file that does something like:

  #define main __gdb_testcase_main

and then links an actual main() function that does some
initialization and then jumps to __gdb_testcase_main.

That runs into a number of testcases relying on main not having an
explicit return statement, like e.g.,:

 gdb/build/gdb/testsuite/../../../src/gdb/testsuite/gdb.base/catch-follow-exec.c:27:1: warning: non-void function does not return a value [-Wreturn-type]
 gdb/build/gdb/testsuite/../../../src/gdb/testsuite/gdb.base/catch-signal.c:47:1: warning: non-void function does not return a value [-Wreturn-type]

We don't get those warnings without my board because it is valid to
not explicitly return from main.  There's an implicit "return 0;".

Since it doesn't hurt to be explicit, I've went ahead and added the
explicit return statements.

Also, a couple testcases either don't explicitly specify main's return
type, or return void.  Those are tweaked to explicitly return int.

gdb/testsuite/ChangeLog:

	* gdb.base/catch-follow-exec.c (main): Add explicit return
	statement.
	* gdb.base/catch-signal.c (main): Likewise.
	* gdb.base/condbreak-call-false.c (main): Likewise.
	* gdb.base/consecutive.c (main): Add explicit return
	statement and return type.
	* gdb.base/cursal.c (main): Add explicit return statement.
	* gdb.base/cvexpr.c (main): Likewise.
	* gdb.base/display.c (main): Add explicit return statement and
	return type.
	* gdb.base/dprintf-detach.c (main): Add explicit return statement.
	* gdb.base/endianity.c (main): Likewise.
	* gdb.base/execd-prog.c (main): Likewise.
	* gdb.base/gdb1090.c (main): Likewise.
	* gdb.base/info_qt.c (main): Likewise.
	* gdb.base/lineinc.c (main): Likewise.
	* gdb.base/load-command.c (main): Likewise.
	* gdb.base/macscp1.c (main): Likewise.
	* gdb.base/pr10179-a.c (main): Likewise.
	* gdb.base/quit-live.c (main): Likewise.
	* gdb.base/scope0.c (main): Likewise.
	* gdb.base/settings.c (main): Likewise.
	* gdb.base/stack-checking.c (main): Return int.
	* gdb.base/varargs.c (main): Add explicit return statement.
	* gdb.cp/ambiguous.cc (main): Likewise.
	* gdb.cp/anon-struct.cc (main): Likewise.
	* gdb.cp/anon-union.cc (main): Likewise.
	* gdb.cp/bool.cc (main): Likewise.
	* gdb.cp/bs15503.cc (main): Likewise.
	* gdb.cp/cplusfuncs.cc (main): Likewise.
	* gdb.cp/cttiadd.cc (main): Likewise.
	* gdb.cp/extern-c.cc (main): Likewise.
	* gdb.cp/filename.cc (main): Likewise.
	* gdb.cp/formatted-ref.cc (main): Likewise.
	* gdb.cp/mb-ctor.cc (main): Likewise.
	* gdb.cp/member-ptr.cc (main): Likewise.
	* gdb.cp/minsym-fallback-main.cc (main): Likewise.
	* gdb.cp/overload-const.cc (main): Likewise.
	* gdb.cp/paren-type.cc (main): Likewise.
	* gdb.cp/parse-lang.cc (main): Likewise.
	* gdb.cp/pr-1023.cc (main): Likewise.
	* gdb.cp/psmang1.cc (main): Likewise.
	* gdb.cp/readnow-language.cc (main): Likewise.
	* gdb.cp/ref-params.cc (main): Likewise.
	* gdb.cp/rvalue-ref-params.cc (main): Likewise.
	* gdb.cp/virtbase2.cc (main): Likewise.
	* gdb.dwarf2/dw2-abs-hi-pc.c (main): Likewise.
	* gdb.dwarf2/dw2-namespaceless-anonymous.c (main): Likewise.
	* gdb.dwarf2/dw4-toplevel-types.cc (main): Likewise.
	* gdb.mi/mi-console.c (main): Likewise.
	* gdb.mi/mi-read-memory.c (main): Likewise.
	* gdb.modula2/multidim.c (main): Likewise.
	* gdb.opt/inline-small-func.c (main): Likewise.
	* gdb.python/py-rbreak.c (main): Likewise.
	* gdb.stabs/exclfwd1.c (main): Likewise.
	* gdb.trace/qtro.c (main): Likewise.
2020-09-13 22:47:01 +01:00

433 lines
10 KiB
C

/* Copyright (C) 2001-2020 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/>. */
/*
* Initial set of typed variables borrowed from ptype.c
*/
#if !defined (__STDC__) && !defined (_AIX)
#define signed /**/
#endif
char v_char;
signed char v_signed_char;
unsigned char v_unsigned_char;
short v_short;
signed short v_signed_short;
unsigned short v_unsigned_short;
int v_int;
signed int v_signed_int;
unsigned int v_unsigned_int;
long v_long;
signed long v_signed_long;
unsigned long v_unsigned_long;
long long v_long_long;
signed long long v_signed_long_long;
unsigned long long v_unsigned_long_long;
float v_float;
double v_double;
/*
* Now some derived types, which are arrays, functions-returning,
* pointers, structures, unions, and enumerations.
*/
/**** arrays *******/
char v_char_array[2];
signed char v_signed_char_array[2];
unsigned char v_unsigned_char_array[2];
short v_short_array[2];
signed short v_signed_short_array[2];
unsigned short v_unsigned_short_array[2];
int v_int_array[2];
signed int v_signed_int_array[2];
unsigned int v_unsigned_int_array[2];
long v_long_array[2];
signed long v_signed_long_array[2];
unsigned long v_unsigned_long_array[2];
float v_float_array[2];
double v_double_array[2];
/* PR 3742 */
typedef char t_char_array[];
/**** pointers *******/
char *v_char_pointer;
signed char *v_signed_char_pointer;
unsigned char *v_unsigned_char_pointer;
short *v_short_pointer;
signed short *v_signed_short_pointer;
unsigned short *v_unsigned_short_pointer;
int *v_int_pointer;
signed int *v_signed_int_pointer;
unsigned int *v_unsigned_int_pointer;
long *v_long_pointer;
signed long *v_signed_long_pointer;
unsigned long *v_unsigned_long_pointer;
float *v_float_pointer;
double *v_double_pointer;
char **v_char_pointer_pointer;
signed char **v_signed_char_pointer_pointer;
unsigned char **v_unsigned_char_pointer_pointer;
short **v_short_pointer_pointer;
signed short **v_signed_short_pointer_pointer;
unsigned short **v_unsigned_short_pointer_pointer;
int **v_int_pointer_pointer;
signed int **v_signed_int_pointer_pointer;
unsigned int **v_unsigned_int_pointer_pointer;
long **v_long_pointer_pointer;
signed long **v_signed_long_pointer_pointer;
unsigned long **v_unsigned_long_pointer_pointer;
float **v_float_pointer_pointer;
double **v_double_pointer_pointer;
/**** pointers to arrays, arrays of pointers *******/
char *v_char_array_pointer[2];
signed char *v_signed_char_array_pointer[2];
unsigned char *v_unsigned_char_array_pointer[2];
short *v_short_array_pointer[2];
signed short *v_signed_short_array_pointer[2];
unsigned short *v_unsigned_short_array_pointer[2];
int *v_int_array_pointer[2];
signed int *v_signed_int_array_pointer[2];
unsigned int *v_unsigned_int_array_pointer[2];
long *v_long_array_pointer[2];
signed long *v_signed_long_array_pointer[2];
unsigned long *v_unsigned_long_array_pointer[2];
float *v_float_array_pointer[2];
double *v_double_array_pointer[2];
char (*v_char_pointer_array)[2];
signed char (*v_signed_char_pointer_array)[2];
unsigned char (*v_unsigned_char_pointer_array)[2];
short (*v_short_pointer_array)[2];
signed short (*v_signed_short_pointer_array)[2];
unsigned short (*v_unsigned_short_pointer_array)[2];
int (*v_int_pointer_array)[2];
signed int (*v_signed_int_pointer_array)[2];
unsigned int (*v_unsigned_int_pointer_array)[2];
long (*v_long_pointer_array)[2];
signed long (*v_signed_long_pointer_array)[2];
unsigned long (*v_unsigned_long_pointer_array)[2];
float (*v_float_pointer_array)[2];
double (*v_double_pointer_array)[2];
/**** structs *******/
struct t_struct {
char v_char_member;
short v_short_member;
int v_int_member;
long v_long_member;
float v_float_member;
double v_double_member;
} v_struct1;
struct t_struct *v_t_struct_p;
struct {
char v_char_member;
short v_short_member;
int v_int_member;
long v_long_member;
float v_float_member;
double v_double_member;
} v_struct2;
/* typedef'd struct without a tag. */
typedef struct {
double v_double_member;
int v_int_member;
} t_struct3;
/* GCC seems to want a variable of this type, or else it won't put out
a symbol. */
t_struct3 v_struct3;
/**** unions *******/
union t_union {
char v_char_member;
short v_short_member;
int v_int_member;
long v_long_member;
float v_float_member;
double v_double_member;
} v_union;
union {
char v_char_member;
short v_short_member;
int v_int_member;
long v_long_member;
float v_float_member;
double v_double_member;
} v_union2;
/* typedef'd union without a tag. */
typedef union {
double v_double_member;
int v_int_member;
} t_union3;
/* GCC seems to want a variable of this type, or else it won't put out
a symbol. */
t_union3 v_union3;
/**** Enumerations *******/
enum
/* Work around the bug for compilers which don't put out the right stabs. */
#if __GNUC__ < 2 && !defined (_AIX)
primary1_tag
#endif
{red1, green1, blue1} primary1;
enum {red, green, blue} primary;
enum colors {yellow, purple, pink} nonprimary;
enum {chevy, ford} clunker;
enum cars {bmw, porsche} sportscar;
#undef FALSE
#undef TRUE
typedef enum {FALSE, TRUE} boolean;
boolean v_boolean;
/*note: aCC has bool type predefined with 'false' and 'true'*/
typedef enum bvals {my_false, my_true} boolean2;
boolean2 v_boolean2;
enum misordered {two = 2, one = 1, zero = 0, three = 3};
/* Seems like we need a variable of this type to get the type to be put
in the executable, at least for AIX xlc. */
enum misordered v_misordered = three;
/**** Function pointers *******/
char (*v_char_func) (int, int*);
signed char (*v_signed_char_func) (int, int*);
unsigned char (*v_unsigned_char_func) (int, int*);
short (*v_short_func) (int, int*);
signed short (*v_signed_short_func) (int, int*);
unsigned short (*v_unsigned_short_func) (int, int*);
int (*v_int_func) (int, int*);
signed int (*v_signed_int_func) (int, int*);
unsigned int (*v_unsigned_int_func) (int, int*);
long (*v_long_func) (int, int*);
signed long (*v_signed_long_func) (int, int*);
unsigned long (*v_unsigned_long_func) (int, int*);
long long (*v_long_long_func) (int, int*);
signed long long (*v_signed_long_long_func) (int, int*);
unsigned long long (*v_unsigned_long_long_func) (int, int*);
float (*v_float_func) (int, int*);
double (*v_double_func) (int, int*);
void use (void *p)
{
}
int main ()
{
use (&v_char);
use (&v_signed_char);
use (&v_unsigned_char);
use (&v_short);
use (&v_signed_short);
use (&v_unsigned_short);
use (&v_int);
use (&v_signed_int);
use (&v_unsigned_int);
use (&v_long);
use (&v_signed_long);
use (&v_unsigned_long);
use (&v_long_long);
use (&v_signed_long_long);
use (&v_unsigned_long_long);
use (&v_float);
use (&v_double);
use (v_char_array);
use (v_signed_char_array);
use (v_unsigned_char_array);
use (v_short_array);
use (v_signed_short_array);
use (v_unsigned_short_array);
use (v_int_array);
use (v_signed_int_array);
use (v_unsigned_int_array);
use (v_long_array);
use (v_signed_long_array);
use (v_unsigned_long_array);
use (v_float_array);
use (v_double_array);
use (v_char_pointer);
use (v_signed_char_pointer);
use (v_unsigned_char_pointer);
use (v_short_pointer);
use (v_signed_short_pointer);
use (v_unsigned_short_pointer);
use (v_int_pointer);
use (v_signed_int_pointer);
use (v_unsigned_int_pointer);
use (v_long_pointer);
use (v_signed_long_pointer);
use (v_unsigned_long_pointer);
use (v_float_pointer);
use (v_double_pointer);
use (v_char_pointer_pointer);
use (v_signed_char_pointer_pointer);
use (v_unsigned_char_pointer_pointer);
use (v_short_pointer_pointer);
use (v_signed_short_pointer_pointer);
use (v_unsigned_short_pointer_pointer);
use (v_int_pointer_pointer);
use (v_signed_int_pointer_pointer);
use (v_unsigned_int_pointer_pointer);
use (v_long_pointer_pointer);
use (v_signed_long_pointer_pointer);
use (v_unsigned_long_pointer_pointer);
use (v_float_pointer_pointer);
use (v_double_pointer_pointer);
use (v_char_array_pointer);
use (v_signed_char_array_pointer);
use (v_unsigned_char_array_pointer);
use (v_short_array_pointer);
use (v_signed_short_array_pointer);
use (v_unsigned_short_array_pointer);
use (v_int_array_pointer);
use (v_signed_int_array_pointer);
use (v_unsigned_int_array_pointer);
use (v_long_array_pointer);
use (v_signed_long_array_pointer);
use (v_unsigned_long_array_pointer);
use (v_float_array_pointer);
use (v_double_array_pointer);
use (v_char_pointer_array);
use (v_signed_char_pointer_array);
use (v_unsigned_char_pointer_array);
use (v_short_pointer_array);
use (v_signed_short_pointer_array);
use (v_unsigned_short_pointer_array);
use (v_int_pointer_array);
use (v_signed_int_pointer_array);
use (v_unsigned_int_pointer_array);
use (v_long_pointer_array);
use (v_signed_long_pointer_array);
use (v_unsigned_long_pointer_array);
use (v_float_pointer_array);
use (v_double_pointer_array);
use (&v_struct1);
use (&v_struct2);
use (&v_struct3);
use (&v_union);
use (&v_union2);
use (&v_union3);
use (&v_boolean);
use (&v_boolean2);
use (&v_misordered);
use (&v_char_func);
use (&v_signed_char_func);
use (&v_unsigned_char_func);
use (&v_short_func);
use (&v_signed_short_func);
use (&v_unsigned_short_func);
use (&v_int_func);
use (&v_signed_int_func);
use (&v_unsigned_int_func);
use (&v_long_func);
use (&v_signed_long_func);
use (&v_unsigned_long_func);
use (&v_long_long_func);
use (&v_signed_long_long_func);
use (&v_unsigned_long_long_func);
use (&v_float_func);
use (&v_double_func);
return 0;
}