binutils-gdb/gdb/testsuite/gdb.base/funcargs.c

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/* Test passing of arguments to functions. Use various sorts of arguments,
including basic types, pointers to those types, structures, lots of
args, etc, in various combinations. */
/* AIX requires this to be the first thing in the file. */
#ifdef __GNUC__
# define alloca __builtin_alloca
# define HAVE_STACK_ALLOCA 1
#else /* not __GNUC__ */
# ifdef _AIX
#pragma alloca
# define HAVE_STACK_ALLOCA 1
# else /* Not AIX */
# ifdef sparc
# include <alloca.h>
# define HAVE_STACK_ALLOCA 1
# ifdef __STDC__
void *alloca ();
# else
char *alloca ();
# endif /* __STDC__ */
# endif /* sparc */
# endif /* Not AIX */
#endif /* not __GNUC__ */
char c = 'a';
char *cp = &c;
unsigned char uc = 'b';
unsigned char *ucp = &uc;
short s = 1;
short *sp = &s;
unsigned short us = 6;
unsigned short *usp = &us;
int i = 2;
int *ip = &i;
unsigned int ui = 7;
unsigned int *uip = &ui;
long l = 3;
long *lp = &l;
unsigned long ul = 8;
unsigned long *ulp = &ul;
float f = 4.0;
float *fp = &f;
double d = 5.0;
double *dp = &d;
struct stag {
int s1;
int s2;
} st = { 101, 102 };
struct stag *stp = &st;
union utag {
int u1;
long u2;
} un;
union utag *unp = &un;
char carray[] = {'a', 'n', ' ', 'a', 'r', 'r', 'a', 'y', '\0'};
/* Test various permutations and interleaving of integral arguments */
call0a (c, s, i, l)
char c; short s; int i; long l;
{
c = 'a';
s = 5;
i = 6;
l = 7;
}
call0b (s, i, l, c)
short s; int i; long l; char c;
{
s = 6; i = 7; l = 8; c = 'j';
}
call0c (i, l, c, s)
int i; long l; char c; short s;
{
i = 3; l = 4; c = 'k'; s = 5;
}
call0d (l, c, s, i)
long l; char c; short s; int i;
{
l = 7; c = 'z'; s = 8; i = 9;
}
call0e (c1, l, c2, i, c3, s, c4, c5)
char c1; long l; char c2; int i; char c3; short s; char c4; char c5;
{
c1 = 'a'; l = 5; c2 = 'b'; i = 7; c3 = 'c'; s = 7; c4 = 'f'; c5 = 'g';
}
/* Test various permutations and interleaving of unsigned integral arguments */
call1a (uc, us, ui, ul)
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
uc = 5; us = 6; ui = 7; ul = 8;
}
call1b (us, ui, ul, uc)
unsigned short us; unsigned int ui; unsigned long ul; unsigned char uc;
{
uc = 5; us = 6; ui = 7; ul = 8;
}
call1c (ui, ul, uc, us)
unsigned int ui; unsigned long ul; unsigned char uc; unsigned short us;
{
uc = 5; us = 6; ui = 7; ul = 8;
}
call1d (ul, uc, us, ui)
unsigned long ul; unsigned char uc; unsigned short us; unsigned int ui;
{
uc = 5; us = 6; ui = 7; ul = 8;
}
call1e (uc1, ul, uc2, ui, uc3, us, uc4, uc5)
unsigned char uc1; unsigned long ul; unsigned char uc2; unsigned int ui;
unsigned char uc3; unsigned short us; unsigned char uc4; unsigned char uc5;
{
uc1 = 5; ul = 7; uc2 = 8; ui = 9; uc3 = 10; us = 11; uc4 = 12; uc5 = 55;
}
/* Test various permutations and interleaving of integral arguments with
floating point arguments. */
call2a (c, f1, s, d1, i, f2, l, d2)
char c; float f1; short s; double d1; int i; float f2; long l; double d2;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2b (f1, s, d1, i, f2, l, d2, c)
float f1; short s; double d1; int i; float f2; long l; double d2; char c;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2c (s, d1, i, f2, l, d2, c, f1)
short s; double d1; int i; float f2; long l; double d2; char c; float f1;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2d (d1, i, f2, l, d2, c, f1, s)
double d1; int i; float f2; long l; double d2; char c; float f1; short s;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2e (i, f2, l, d2, c, f1, s, d1)
int i; float f2; long l; double d2; char c; float f1; short s; double d1;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2f (f2, l, d2, c, f1, s, d1, i)
float f2; long l; double d2; char c; float f1; short s; double d1; int i;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2g (l, d2, c, f1, s, d1, i, f2)
long l; double d2; char c; float f1; short s; double d1; int i; float f2;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2h (d2, c, f1, s, d1, i, f2, l)
double d2; char c; float f1; short s; double d1; int i; float f2; long l;
{
c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}
call2i (c1, f1, c2, c3, d1, c4, c5, c6, f2, s, c7, d2)
char c1; float f1; char c2; char c3; double d1; char c4; char c5; char c6;
float f2; short s; char c7; double d2;
{
c1 = 'a'; f1 = 0.0; c2 = 5; d1 = 0.0; c3 = 6; f2 = 0.1; c4 = 7; d2 = 0.2;
c5 = 's'; c6 = 'f'; c7 = 'z'; s = 77;
}
/* Test pointers to various integral and floating types. */
call3a (cp, sp, ip, lp)
char *cp; short *sp; int *ip; long *lp;
{
cp = 0; sp = 0; ip = 0; lp = 0;
}
call3b (ucp, usp, uip, ulp)
unsigned char *ucp; unsigned short *usp; unsigned int *uip;
unsigned long *ulp;
{
ucp = 0; usp = 0; uip = 0; ulp = 0;
}
call3c (fp, dp)
float *fp; double *dp;
{
fp = 0; dp = 0;
}
/* Test passing structures and unions by reference. */
call4a (stp)
struct stag *stp; {
stp = 0;}
call4b (unp)
union utag *unp;
{
unp = 0;
}
/* Test passing structures and unions by value. */
call5a (st)
struct stag st; {st.s1 = 5;}
call5b (un)
union utag un; {un.u1 = 7;}
/* Test shuffling of args */
call6a (c, s, i, l, f, d, uc, us, ui, ul)
char c; short s; int i; long l; float f; double d;
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
c = c;
call6b (s, i, l, f, d, uc, us, ui, ul);
}
call6b (s, i, l, f, d, uc, us, ui, ul)
short s; int i; long l; float f; double d;
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
s = s;
call6c (i, l, f, d, uc, us, ui, ul);
}
call6c (i, l, f, d, uc, us, ui, ul)
int i; long l; float f; double d;
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
i = i;
call6d (l, f, d, uc, us, ui, ul);
}
call6d (l, f, d, uc, us, ui, ul)
long l; float f; double d;
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
l = l;
call6e (f, d, uc, us, ui, ul);
}
call6e (f, d, uc, us, ui, ul)
float f; double d;
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
f = f;
call6f (d, uc, us, ui, ul);
}
call6f (d, uc, us, ui, ul)
double d;
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
d = d;
call6g (uc, us, ui, ul);
}
call6g (uc, us, ui, ul)
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
{
uc = uc;
call6h (us, ui, ul);
}
call6h (us, ui, ul)
unsigned short us; unsigned int ui; unsigned long ul;
{
us = us;
call6i (ui, ul);
}
call6i (ui, ul)
unsigned int ui; unsigned long ul;
{
ui = ui;
call6j (ul);
}
call6j (ul)
unsigned long ul;
{
ul = ul;
call6k ();
}
call6k ()
{
}
/* Test shuffling of args, round robin */
call7a (c, i, s, l, f, uc, d, us, ul, ui)
char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui;
{
call7b (i, s, l, f, uc, d, us, ul, ui, c);
}
call7b (i, s, l, f, uc, d, us, ul, ui, c)
int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c;
{
call7c (s, l, f, uc, d, us, ul, ui, c, i);
}
call7c (s, l, f, uc, d, us, ul, ui, c, i)
short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i;
{
call7d (l, f, uc, d, us, ul, ui, c, i, s);
}
call7d (l, f, uc, d, us, ul, ui, c, i, s)
long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s;
{
call7e (f, uc, d, us, ul, ui, c, i, s, l);
}
call7e (f, uc, d, us, ul, ui, c, i, s, l)
float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l;
{
call7f (uc, d, us, ul, ui, c, i, s, l, f);
}
call7f (uc, d, us, ul, ui, c, i, s, l, f)
unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f;
{
call7g (d, us, ul, ui, c, i, s, l, f, uc);
}
call7g (d, us, ul, ui, c, i, s, l, f, uc)
double d; unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc;
{
call7h (us, ul, ui, c, i, s, l, f, uc, d);
}
call7h (us, ul, ui, c, i, s, l, f, uc, d)
unsigned short us; unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; double d;
{
call7i (ul, ui, c, i, s, l, f, uc, d, us);
}
call7i (ul, ui, c, i, s, l, f, uc, d, us)
unsigned long ul; unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us;
{
call7j (ui, c, i, s, l, f, uc, d, us, ul);
}
call7j (ui, c, i, s, l, f, uc, d, us, ul)
unsigned int ui; char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul;
{
call7k (c, i, s, l, f, uc, d, us, ul, ui);
}
call7k (c, i, s, l, f, uc, d, us, ul, ui)
char c; int i; short s; long l; float f; unsigned char uc; double d; unsigned short us; unsigned long ul; unsigned int ui;
{
c = 'a'; i = 7; s = 8; l = 7; f = 0.3; uc = 44; d = 0.44; us = 77;
ul = 43; ui = 33;
}
/* Test printing of structures passed as arguments to recursive functions. */
typedef struct s
{
short s;
int i;
long l;
} SVAL;
hitbottom ()
{
}
void recurse (a, depth)
SVAL a;
int depth;
{
a.s = a.i = a.l = --depth;
if (depth == 0)
hitbottom ();
else
recurse (a, depth);
}
test_struct_args ()
{
SVAL s; s.s = 5; s.i = 5; s.l = 5;
recurse (s, 5);
}
/* On various machines (pa, 29k, and rs/6000, at least), a function which
calls alloca may do things differently with respect to frames. So give
it a try. */
int
localvars_after_alloca (c, s, i, l)
char c;
short s;
int i;
long l;
{
#ifdef HAVE_STACK_ALLOCA
/* No need to use the alloca.c alloca-on-top-of-malloc; it doesn't
test what we are looking for, so if we don't have an alloca which
allocates on the stack, just don't bother to call alloca at all. */
char *z = alloca (s + 50);
#endif
c = 'a';
s = 5;
i = 6;
l = 7;
}
void
call_after_alloca_subr (c, s, i, l, uc, us, ui, ul)
char c; int i; short s; long l; unsigned char uc; unsigned short us; unsigned long ul; unsigned int ui;
{
c = 'a';
i = 7; s = 8; l = 7; uc = 44; us = 77;
ul = 43; ui = 33;
}
int
call_after_alloca (c, s, i, l)
char c;
short s;
int i;
long l;
{
#ifdef HAVE_STACK_ALLOCA
/* No need to use the alloca.c alloca-on-top-of-malloc; it doesn't
test what we are looking for, so if we don't have an alloca which
allocates on the stack, just don't bother to call alloca at all. */
char *z = alloca (s + 50);
#endif
call_after_alloca_subr (c, s, i, l, 'b', 11, 12, (unsigned long)13);
}
/* The point behind this test is the PA will call this indirectly
through dyncall. Unlike the indirect calls to call0a, this test
will require a trampoline between dyncall and this function on the
call path, then another trampoline on between this function and main
on the return path. */
double
call_with_trampolines (d1)
double d1;
{
return d1;
} /* End of call_with_trampolines, this comment is needed by funcargs.exp */
/* Dummy functions which the testsuite can use to run to, etc. */
void
marker_indirect_call () {}
void
marker_call_with_trampolines () {}
main ()
{
int (*pointer_to_call0a) () = call0a;
double (*pointer_to_call_with_trampolines) () = call_with_trampolines;
#ifdef usestubs
set_debug_traps();
breakpoint();
#endif
/* Test calling with basic integer types */
call0a (c, s, i, l);
call0b (s, i, l, c);
call0c (i, l, c, s);
call0d (l, c, s, i);
call0e (c, l, c, i, c, s, c, c);
/* Test calling with unsigned integer types */
call1a (uc, us, ui, ul);
call1b (us, ui, ul, uc);
call1c (ui, ul, uc, us);
call1d (ul, uc, us, ui);
call1e (uc, ul, uc, ui, uc, us, uc, uc);
/* Test calling with integral types mixed with floating point types */
call2a (c, f, s, d, i, f, l, d);
call2b (f, s, d, i, f, l, d, c);
call2c (s, d, i, f, l, d, c, f);
call2d (d, i, f, l, d, c, f, s);
call2e (i, f, l, d, c, f, s, d);
call2f (f, l, d, c, f, s, d, i);
call2g (l, d, c, f, s, d, i, f);
call2h (d, c, f, s, d, i, f, l);
call2i (c, f, c, c, d, c, c, c, f, s, c, d);;
/* Test dereferencing pointers to various integral and floating types */
call3a (cp, sp, ip, lp);
call3b (ucp, usp, uip, ulp);
call3c (fp, dp);
/* Test dereferencing pointers to structs and unions */
call4a (stp);
un.u1 = 1;
call4b (unp);
/* Test calling with structures and unions. */
call5a (st);
un.u1 = 2;
call5b (un);
/* Test shuffling of args */
call6a (c, s, i, l, f, d, uc, us, ui, ul);
call7a (c, i, s, l, f, uc, d, us, ul, ui);
/* Test passing structures recursively. */
test_struct_args ();
localvars_after_alloca (c, s, i, l);
call_after_alloca (c, s, i, l);
/* This is for localvars_in_indirect_call. */
marker_indirect_call ();
/* The comment on the following two lines is used by funcargs.exp,
don't change it. */
(*pointer_to_call0a) (c, s, i, l); /* First step into call0a. */
(*pointer_to_call0a) (c, s, i, l); /* Second step into call0a. */
marker_call_with_trampolines ();
(*pointer_to_call_with_trampolines) (d); /* Test multiple trampolines. */
}