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/*
 * This test tries to raise each type of synchronous signal and prints
 * out the siginfo.si_addr field.  The test can be run under Pin to test
 * whether that field has the same value when run natively.
 */

#include <signal.h>
#include <stdio.h>
#include <setjmp.h>
#include <sys/prctl.h>


static sigjmp_buf JumpBuffer;
static unsigned int TestNumber = 0;

static void handle(int, siginfo_t*, void*);

extern void DoSIGSEGV();
extern void DoSIGBUS();
extern void DoSIGILL();
extern void DoSIGFPE();
extern void DoSIGTRAP();


int main()
{
    struct sigaction sigact;

    sigact.sa_sigaction = handle;
    sigemptyset(&sigact.sa_mask);
    sigact.sa_flags = SA_SIGINFO;
    if (sigaction(SIGSEGV, &sigact, 0) == -1)
    {
        fprintf(stderr, "Unable handle SIGSEGV\n");
        return 1;
    }
    if (sigaction(SIGBUS, &sigact, 0) == -1)
    {
        fprintf(stderr, "Unable handle SIGBUS\n");
        return 1;
    }
    if (sigaction(SIGILL, &sigact, 0) == -1)
    {
        fprintf(stderr, "Unable handle SIGILL\n");
        return 1;
    }
    if (sigaction(SIGFPE, &sigact, 0) == -1)
    {
        fprintf(stderr, "Unable handle SIGSEGV\n");
        return 1;
    }
    if (sigaction(SIGTRAP, &sigact, 0) == -1)
    {
        fprintf(stderr, "Unable handle SIGTRAP\n");
        return 1;
    }

    sigsetjmp(JumpBuffer, 1);

    for (;;)
    {
        switch (TestNumber)
        {
        case 0:
            printf("Raising SIGSEGV ...\n");
            DoSIGSEGV();
            printf("Failed to raise signal\n");
            TestNumber++;
            break;

        case 1:
            printf("Raising SIGBUS ...\n");
            if (prctl(PR_SET_UNALIGN, PR_UNALIGN_SIGBUS) != 0)
                printf("Can't set unaligned\n");
            DoSIGBUS();
            printf("Failed to raise signal\n");
            TestNumber++;
            break;

        case 2:
            printf("Raising SIGILL ...\n");
            DoSIGILL();
            printf("Failed to raise signal\n");
            TestNumber++;
            break;

        case 3:
            printf("Raising SIGFPE ...\n");
            DoSIGFPE();
            printf("Failed to raise signal\n");
            TestNumber++;
            break;

        case 4:
            printf("Raising SIGTRAP ...\n");
            DoSIGTRAP();
            printf("Failed to raise signal\n");
            TestNumber++;
            break;

        default:
            return 0;
        }
    }
}

static void handle(int sig, siginfo_t* info, void* vctxt)
{
    printf("Got signal %d, si_addr is 0x%lx\n", sig, (unsigned long)info->si_addr);
    TestNumber++;
    siglongjmp(JumpBuffer, 1);
}