+++ /dev/null
-#if defined OSX
-#define _XOPEN_SOURCE
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#if defined(TEST_sigstack) || defined(TEST_sigaltstack)
-#include <sys/types.h>
-#include <signal.h>
-#include <unistd.h>
-#endif
-#if defined(TEST_makecontext)
-#include <ucontext.h>
-#endif
-union alltypes {
- long l;
- double d;
- void *vp;
- void (*fp)(void);
- char *cp;
-};
-static volatile char *handler_addr = (char *)0xDEAD;
-#if defined(TEST_sigstack) || defined(TEST_sigaltstack)
-static volatile int handler_done = 0;
-void handler(int sig)
-{
- char garbage[1024];
- int i;
- auto int dummy;
- for (i = 0; i < 1024; i++)
- garbage[i] = 'X';
- handler_addr = (char *)&dummy;
- handler_done = 1;
- return;
-}
-#endif
-#if defined(TEST_makecontext)
-static ucontext_t uc_handler;
-static ucontext_t uc_main;
-void handler(void)
-{
- char garbage[1024];
- int i;
- auto int dummy;
- for (i = 0; i < 1024; i++)
- garbage[i] = 'X';
- handler_addr = (char *)&dummy;
- swapcontext(&uc_handler, &uc_main);
- return;
-}
-#endif
-int main(int argc, char *argv[])
-{
- FILE *f;
- char *skaddr;
- char *skbuf;
- int sksize;
- char result[1024];
- int i;
- sksize = 32768;
- skbuf = (char *)malloc(sksize*2+2*sizeof(union alltypes));
- if (skbuf == NULL)
- exit(1);
- for (i = 0; i < sksize*2+2*sizeof(union alltypes); i++)
- skbuf[i] = 'A';
- skaddr = skbuf+sizeof(union alltypes);
-#if defined(TEST_sigstack) || defined(TEST_sigaltstack)
- {
- struct sigaction sa;
-#if defined(TEST_sigstack)
- struct sigstack ss;
-#elif defined(TEST_sigaltstack) && defined(HAVE_STACK_T)
- stack_t ss;
-#else
- struct sigaltstack ss;
-#endif
-#if defined(TEST_sigstack)
- ss.ss_sp = (void *)(skaddr + sksize);
- ss.ss_onstack = 0;
- if (sigstack(&ss, NULL) < 0)
- exit(1);
-#elif defined(TEST_sigaltstack)
- ss.ss_sp = (void *)(skaddr + sksize);
- ss.ss_size = sksize;
- ss.ss_flags = 0;
- if (sigaltstack(&ss, NULL) < 0)
- exit(1);
-#endif
- memset((void *)&sa, 0, sizeof(struct sigaction));
- sa.sa_handler = handler;
- sa.sa_flags = SA_ONSTACK;
- sigemptyset(&sa.sa_mask);
- sigaction(SIGUSR1, &sa, NULL);
- kill(getpid(), SIGUSR1);
- while (!handler_done)
- /*nop*/;
- }
-#endif
-#if defined(TEST_makecontext)
- {
- if (getcontext(&uc_handler) != 0)
- exit(1);
- uc_handler.uc_link = NULL;
- uc_handler.uc_stack.ss_sp = (void *)(skaddr + sksize);
- uc_handler.uc_stack.ss_size = sksize;
- uc_handler.uc_stack.ss_flags = 0;
- makecontext(&uc_handler, handler, 0);
- swapcontext(&uc_main, &uc_handler);
- }
-#endif
- if (handler_addr == (char *)0xDEAD)
- exit(1);
- if (handler_addr < skaddr+sksize) {
- /* stack was placed into lower area */
- if (*(skaddr+sksize) != 'A')
- sprintf(result, "(skaddr)+(sksize)-%d,(sksize)-%d",
- sizeof(union alltypes), sizeof(union alltypes));
- else
- strcpy(result, "(skaddr)+(sksize),(sksize)");
- }
- else {
- /* stack was placed into higher area */
- if (*(skaddr+sksize*2) != 'A')
- sprintf(result, "(skaddr),(sksize)-%d", sizeof(union alltypes));
- else
- strcpy(result, "(skaddr),(sksize)");
- }
- if ((f = fopen("conftestval", "w")) == NULL)
- exit(1);
- fprintf(f, "%s\n", result);
- fclose(f);
- exit(0);
- return 1;
-}