gcc/testsuite/gcc.dg/sparc-getcontext-1.c

   1 /* PR middle-end/22127 */
   2 /* Testcase by <akr@m17n.org> */
   3
   4 /* [ dg-do run { target sparc*-sun-solaris2.* } } */
   5 /* { dg-require-effective-target ilp32 } */
   6 /* { dg-options "-O" } */
   7
   8 typedef unsigned int size_t;
   9 extern int printf(const char *, ...);
  10 typedef unsigned char uint8_t;
  11 typedef unsigned int uint32_t;
  12 typedef unsigned int uint_t;
  13 typedef char *caddr_t;
  14 typedef int greg_t;
  15 typedef greg_t gregset_t[19];
  16 struct rwindow {
  17  greg_t rw_local[8];
  18  greg_t rw_in[8];
  19 };
  20 typedef struct gwindows {
  21  int wbcnt;
  22  greg_t *spbuf[31];
  23  struct rwindow wbuf[31];
  24 } gwindows_t;
  25 struct fpu {
  26  union {
  27   uint32_t fpu_regs[32];
  28   double fpu_dregs[16];
  29  } fpu_fr;
  30  struct fq *fpu_q;
  31  uint32_t fpu_fsr;
  32  uint8_t fpu_qcnt;
  33  uint8_t fpu_q_entrysize;
  34  uint8_t fpu_en;
  35 };
  36 typedef struct fpu fpregset_t;
  37 typedef struct {
  38  unsigned int xrs_id;
  39  caddr_t xrs_ptr;
  40 } xrs_t;
  41 typedef struct {
  42  gregset_t gregs;
  43  gwindows_t *gwins;
  44  fpregset_t fpregs;
  45  xrs_t xrs;
  46  long filler[19];
  47 } mcontext_t;
  48 typedef struct {
  49  unsigned int __sigbits[4];
  50 } sigset_t;
  51 typedef struct sigaltstack {
  52  void *ss_sp;
  53  size_t ss_size;
  54  int ss_flags;
  55 } stack_t;
  56 typedef struct ucontext ucontext_t;
  57 struct ucontext {
  58  uint_t uc_flags;
  59  ucontext_t *uc_link;
  60  sigset_t uc_sigmask;
  61  stack_t uc_stack;
  62  mcontext_t uc_mcontext;
  63  long uc_filler[23];
  64 };
  65 extern int getcontext(ucontext_t *);
  66 extern int setcontext(const ucontext_t *);
  67
  68 int flag;
  69 ucontext_t cont;
  70 int pad[100];
  71 typedef void (*fun_t)(int);
  72 fun_t p0,p1,p2,p3,p4,p5,p6,p7,p8,p9,p10,p11,p12;
  73
  74 int global;
  75
  76 extern void abort(void);
  77
  78 void h1(int v)
  79 {
  80   global = v;
  81 }
  82
  83 void h2(int v)
  84 {
  85   if (v != 1)
  86     abort();
  87 }
  88
  89 void f(void)
  90 {
  91   flag = 1;
  92   setcontext(&cont);
  93 }
  94
  95 int g(void)
  96 {
  97   int ret;
  98
  99   flag = 0;
 100   getcontext(&cont);
 101   ret = flag;
 102   if (ret == 0) {
 103     h1 (flag);
 104     p0 = p1 = p2 = p3 = p4 = p5 = p6 = p7 = p8 = h1;
 105     f();
 106     p0(ret); p1(ret); p2(ret); p3(ret); p4(ret); p5(ret); p6(ret); p7(ret); p8(ret);
 107   }
 108   else {
 109     h2 (flag);
 110   }
 111   return ret;
 112 }
 113
 114 int main(void)
 115 {
 116   g();
 117   return 0;
 118 }