gdb/testsuite/gdb.base/eh_return.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    It was copied from gcc repo, gcc/testsuite/gcc.target/aarch64/eh_return.c.
   4
   5    Copyright 2020-2023 Free Software Foundation, Inc.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include <stdlib.h>
  21 #include <stdio.h>
  22
  23 int val, test, failed;
  24
  25 int main (void);
  26
  27 void
  28 eh0 (void *p)
  29 {
  30   val = (int)(long)p & 7;
  31   if (val)
  32     abort ();
  33 }
  34
  35 void
  36 eh1 (void *p, int x)
  37 {
  38   void *q = __builtin_alloca (x);
  39   eh0 (q);
  40   __builtin_eh_return (0, p);
  41 }
  42
  43 void
  44 eh2a (int a,int b,int c,int d,int e,int f,int g,int h, void *p)
  45 {
  46   val = a + b + c + d + e + f + g + h +  (int)(long)p & 7;
  47 }
  48
  49 void
  50 eh2 (void *p)
  51 {
  52   eh2a (val, val, val, val, val, val, val, val, p);
  53   __builtin_eh_return (0, p);
  54 }
  55
  56
  57 void
  58 continuation (void)
  59 {
  60   test++;
  61   main ();
  62 }
  63
  64 void
  65 fail (void)
  66 {
  67   failed = 1;
  68   printf ("failed\n");
  69   continuation ();
  70 }
  71
  72 void
  73 do_test1 (void)
  74 {
  75   if (!val)
  76     eh1 (continuation, 100);
  77   fail ();
  78 }
  79
  80 void
  81 do_test2 (void)
  82 {
  83   if (!val)
  84     eh2 (continuation);
  85   fail ();
  86 }
  87
  88 int
  89 main (void)
  90 {
  91   if (test == 0)
  92     do_test1 ();
  93   if (test == 1)
  94     do_test2 ();
  95   if (failed || test != 2)
  96     exit (1);
  97   exit (0);
  98 }