binutils-gdb/gdb/testsuite/gdb.base/macscp1.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

116 lines
2.1 KiB
C

#include <stdio.h>
#define SPLICE(a, b) INNER_SPLICE(a, b)
#define INNER_SPLICE(a, b) a ## b
#define STRINGIFY(a) INNER_STRINGIFY(a)
#define INNER_STRINGIFY(a) #a
#define FIFTY_SEVEN 57
#define FORTY_EIGHT 48
#undef FORTY_EIGHT
struct outer
{
struct fields
{
struct fault
{
int addr;
} fault;
} fields;
};
struct outer address;
#define addr fields.fault.addr
/* A macro named UNTIL_<func> is #defined until just before the
definition of the function <func>.
A macro named BEFORE_<func> is not #defined until just before the
definition of <func>.
The macro WHERE is redefined before each function <func> to the
token list ``before <func>''.
The macscp IN_MACSCP2_H and IN_MACSCP3_H are defined while
processing those header files; macscp4.h uses them to choose
appropriate function names, output strings, and macro definitions. */
#define UNTIL_MACSCP1_1
#define UNTIL_MACSCP2_1
#define UNTIL_MACSCP4_1_FROM_MACSCP2
#define UNTIL_MACSCP4_2_FROM_MACSCP2
#define UNTIL_MACSCP2_2
#define UNTIL_MACSCP1_2
#define UNTIL_MACSCP3_1
#define UNTIL_MACSCP4_1_FROM_MACSCP3
#define UNTIL_MACSCP4_2_FROM_MACSCP3
#define UNTIL_MACSCP3_2
#define UNTIL_MACSCP1_3
#define WHERE before macscp1_1
#define BEFORE_MACSCP1_1
#undef UNTIL_MACSCP1_1
void
macscp1_1 ()
{
puts ("macscp1_1");
}
#include "macscp2.h"
#undef WHERE
#define WHERE before macscp1_2
#define BEFORE_MACSCP1_2
#undef UNTIL_MACSCP1_2
void
macscp1_2 ()
{
puts ("macscp1_2");
}
#include "macscp3.h"
#undef WHERE
#define WHERE before macscp1_3
#define BEFORE_MACSCP1_3
#undef UNTIL_MACSCP1_3
void
macscp1_3 ()
{
puts ("macscp1_3");
}
void
macscp_expr (void)
{
int foo = -1;
foo = 0; /* set breakpoint here */
#define MACRO_TO_EXPAND foo
foo = 1; /* set second breakpoint here */
#undef MACRO_TO_EXPAND
foo = 2; /* stopping point for line test */
}
#define TWENTY_THREE 23
int
main (int argc, char **argv)
{
macscp1_1 ();
macscp2_1 ();
macscp4_1_from_macscp2 ();
macscp4_2_from_macscp2 ();
macscp2_2 ();
macscp1_2 ();
macscp3_1 ();
macscp4_1_from_macscp3 ();
macscp4_2_from_macscp3 ();
macscp3_2 ();
macscp1_3 ();
macscp_expr ();
return 0;
}