funcargs.c

gdb-6.8 Linux下的调试程序 最新版本

/*  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 */


#ifdef PROTOTYPES
void call0a (char c, short s, int i, long l)
#else
call0a (c, s, i, l)
char c; short s; int i; long l;
#endif
{
  c = 'a';
  s = 5;
  i = 6;
  l = 7;
}

#ifdef PROTOTYPES
void call0b (short s, int i, long l, char c)
#else
call0b (s, i, l, c)
short s; int i; long l; char c;
#endif
{
  s = 6; i = 7; l = 8; c = 'j';
}

#ifdef PROTOTYPES
void call0c (int i, long l, char c, short s)
#else
call0c (i, l, c, s)
int i; long l; char c; short s;
#endif
{
  i = 3; l = 4; c = 'k'; s = 5;
}

#ifdef PROTOTYPES
void call0d (long l, char c, short s, int i)
#else
call0d (l, c, s, i)
long l; char c; short s; int i;
#endif
{
  l = 7; c = 'z'; s = 8; i = 9;
}

#ifdef PROTOTYPES
void call0e (char c1, long l, char c2, int i, char c3, short s, char c4, char c5)
#else
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;
#endif
{
  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 */


#ifdef PROTOTYPES
void call1a (unsigned char uc, unsigned short us, unsigned int ui, unsigned long ul)
#else
call1a (uc, us, ui, ul)
unsigned char uc; unsigned short us; unsigned int ui; unsigned long ul;
#endif
{
  uc = 5; us = 6; ui = 7; ul = 8;
}

#ifdef PROTOTYPES
void call1b (unsigned short us, unsigned int ui, unsigned long ul, unsigned char uc)
#else
call1b (us, ui, ul, uc)
unsigned short us; unsigned int ui; unsigned long ul; unsigned char uc;
#endif
{
  uc = 5; us = 6; ui = 7; ul = 8;
}

#ifdef PROTOTYPES
void call1c (unsigned int ui, unsigned long ul, unsigned char uc, unsigned short us)
#else
call1c (ui, ul, uc, us)
unsigned int ui; unsigned long ul; unsigned char uc; unsigned short us;
#endif
{
  uc = 5; us = 6; ui = 7; ul = 8;
}

#ifdef PROTOTYPES
void call1d (unsigned long ul, unsigned char uc, unsigned short us, unsigned int ui)
#else
call1d (ul, uc, us, ui)
unsigned long ul; unsigned char uc; unsigned short us; unsigned int ui;
#endif
{
  uc = 5; us = 6; ui = 7; ul = 8;
}

#ifdef PROTOTYPES
void call1e (unsigned char uc1, unsigned long ul, unsigned char uc2, unsigned int ui, unsigned char uc3, unsigned short us, unsigned char uc4, unsigned char uc5)
#else
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;
#endif
{
  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. */


#ifdef PROTOTYPES
void call2a (char c, float f1, short s, double d1, int i, float f2, long l, double d2)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2b (float f1, short s, double d1, int i, float f2, long l, double d2, char c)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2c (short s, double d1, int i, float f2, long l, double d2, char c, float f1)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2d (double d1, int i, float f2, long l, double d2, char c, float f1, short s)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2e (int i, float f2, long l, double d2, char c, float f1, short s, double d1)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2f (float f2, long l, double d2, char c, float f1, short s, double d1, int i)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2g (long l, double d2, char c, float f1, short s, double d1, int i, float f2)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2h (double d2, char c, float f1, short s, double d1, int i, float f2, long l)
#else
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;
#endif
{
  c = 'a'; f1 = 0.0; s = 5; d1 = 0.0; i = 6; f2 = 0.1; l = 7; d2 = 0.2;
}

#ifdef PROTOTYPES
void call2i (char c1, float f1, char c2, char c3, double d1, char c4, char c5, char c6, float f2, short s, char c7, double d2)
#else
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;
#endif
{
  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. */


#ifdef PROTOTYPES
void call3a (char *cp, short *sp, int *ip, long *lp)
#else
call3a (cp, sp, ip, lp)
char *cp; short *sp; int *ip; long *lp;
#endif
{
  cp = 0; sp = 0; ip = 0; lp = 0;
}

#ifdef PROTOTYPES
void call3b (unsigned char *ucp, unsigned short *usp, unsigned int *uip, unsigned long *ulp)
#else
call3b (ucp, usp, uip, ulp)
unsigned char *ucp; unsigned short *usp; unsigned int *uip;
unsigned long *ulp;
#endif
{
  ucp = 0; usp = 0; uip = 0; ulp = 0;
}

#ifdef PROTOTYPES
void call3c (float *fp, double *dp)
#else
call3c (fp, dp)
float *fp; double *dp;
#endif
{
  fp = 0; dp = 0;
}


/* Test passing structures and unions by reference. */


#ifdef PROTOTYPES
void call4a (struct stag *stp)
#else
call4a (stp)
struct stag *stp;
#endif
{stp = 0;}

#ifdef PROTOTYPES
void call4b (union utag *unp)
#else
call4b (unp)
union utag *unp;
#endif
{
  unp = 0;
}


/* Test passing structures and unions by value. */


#ifdef PROTOTYPES
void call5a (struct stag st)
#else
call5a (st)
struct stag st;
#endif
{st.s1 = 5;}

#ifdef PROTOTYPES
void call5b (union utag un)
#else
call5b (un)
union utag un;
#endif
{un.u1 = 7;}


/* Test shuffling of args */


void call6k ()
{
}

#ifdef PROTOTYPES
void call6j (unsigned long ul)
#else
call6j (ul)
unsigned long ul;
#endif
{
  ul = ul;
    call6k ();
}

#ifdef PROTOTYPES
void call6i (unsigned int ui, unsigned long ul)
#else
call6i (ui, ul)
unsigned int ui; unsigned long ul;
#endif
{
  ui = ui;
    call6j (ul);
}

#ifdef PROTOTYPES
void call6h (unsigned short us, unsigned int ui, unsigned long ul)
#else
call6h (us, ui, ul)
unsigned short us; unsigned int ui; unsigned long ul;
#endif
{
  us = us;
    call6i (ui, ul);
}

#ifdef PROTOTYPES
void call6g (unsigned char uc, unsigned short us, unsigned int ui, unsigned long ul)