1 /* Copyright (c) 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
13 #if defined(TEST_sigstack) || defined(TEST_sigaltstack)
14 #include <sys/types.h>
18 #if defined(TEST_makecontext)
28 static volatile char *handler_addr = (char *)0xDEAD;
29 #if defined(TEST_sigstack) || defined(TEST_sigaltstack)
30 static volatile int handler_done = 0;
36 for (i = 0; i < 1024; i++)
38 handler_addr = (char *)&dummy;
43 #if defined(TEST_makecontext)
44 static ucontext_t uc_handler;
45 static ucontext_t uc_main;
51 for (i = 0; i < 1024; i++)
53 handler_addr = (char *)&dummy;
54 swapcontext(&uc_handler, &uc_main);
58 int main(int argc, char *argv[])
67 skbuf = (char *)malloc(sksize*2+2*sizeof(union alltypes));
70 for (i = 0; i < sksize*2+2*sizeof(union alltypes); i++)
72 skaddr = skbuf+sizeof(union alltypes);
73 #if defined(TEST_sigstack) || defined(TEST_sigaltstack)
76 #if defined(TEST_sigstack)
78 #elif defined(TEST_sigaltstack) && defined(HAVE_STACK_T)
81 struct sigaltstack ss;
83 #if defined(TEST_sigstack)
84 ss.ss_sp = (void *)(skaddr + sksize);
86 if (sigstack(&ss, NULL) < 0)
88 #elif defined(TEST_sigaltstack)
89 ss.ss_sp = (void *)(skaddr + sksize);
92 if (sigaltstack(&ss, NULL) < 0)
95 memset((void *)&sa, 0, sizeof(struct sigaction));
96 sa.sa_handler = handler;
97 sa.sa_flags = SA_ONSTACK;
98 sigemptyset(&sa.sa_mask);
99 sigaction(SIGUSR1, &sa, NULL);
100 kill(getpid(), SIGUSR1);
101 while (!handler_done)
105 #if defined(TEST_makecontext)
107 if (getcontext(&uc_handler) != 0)
109 uc_handler.uc_link = NULL;
110 uc_handler.uc_stack.ss_sp = (void *)(skaddr + sksize);
111 uc_handler.uc_stack.ss_size = sksize;
112 uc_handler.uc_stack.ss_flags = 0;
113 makecontext(&uc_handler, handler, 0);
114 swapcontext(&uc_main, &uc_handler);
117 if (handler_addr == (char *)0xDEAD)
119 if (handler_addr < skaddr+sksize) {
120 /* stack was placed into lower area */
121 if (*(skaddr+sksize) != 'A')
122 sprintf(result, "(skaddr)+(sksize)-%d,(sksize)-%d",
123 sizeof(union alltypes), sizeof(union alltypes));
125 strcpy(result, "(skaddr)+(sksize),(sksize)");
128 /* stack was placed into higher area */
129 if (*(skaddr+sksize*2) != 'A')
130 sprintf(result, "(skaddr),(sksize)-%d", sizeof(union alltypes));
132 strcpy(result, "(skaddr),(sksize)");
134 if ((f = fopen("conftestval", "w")) == NULL)
136 fprintf(f, "%s\n", result);