1 2 #include <signal.h> 3 #include <stdio.h> 4 #if !defined(_AIX) 5 # include <sys/syscall.h> 6 #endif 7 #include <unistd.h> 8 9 // Reg test for bug #93328: we were using too-big sigset types, and thus 10 // trashing memory when we wrote out the 'oldset' param from sigprocmask(). 11 12 int main(void) 13 { 14 #if defined(__NR_sigprocmask) \ 15 && !defined(__powerpc64__) \ 16 && !defined(_AIX) \ 17 && !defined(__arm__) 18 19 // arm-linux uses rt_sigprocmask, so no sigset mangling takes place 20 21 int x[6], *s, *os, i; 22 23 x[0] = 0x11111111; 24 x[1] = 0x89abcdef; 25 x[2] = 0x22222222; 26 x[3] = 0x33333333; 27 x[4] = 0x0; 28 x[5] = 0x44444444; 29 30 s = &x[1]; 31 os = &x[4]; 32 33 // Make sure the system is in a known state with no signals 34 // blocked as perl has been known to leave some signals blocked 35 // when starting child processes which can cause failures in 36 // this test unless we reset things here. 37 syscall(__NR_sigprocmask, SIG_SETMASK, os, NULL); 38 39 fprintf(stderr, "before\n"); 40 for (i = 0; i < 6; i++) { 41 fprintf(stderr, "%x ", x[i]); 42 } 43 fprintf(stderr, "\n"); 44 45 syscall(__NR_sigprocmask, SIG_BLOCK, s, os); 46 47 fprintf(stderr, "after1\n"); 48 for (i = 0; i < 6; i++) { 49 fprintf(stderr, "%x ", x[i]); 50 } 51 fprintf(stderr, "\n"); 52 53 syscall(__NR_sigprocmask, SIG_BLOCK, s, os); 54 55 fprintf(stderr, "after2\n"); 56 for (i = 0; i < 6; i++) { 57 fprintf(stderr, "%x ", x[i]); 58 } 59 fprintf(stderr, "\n"); 60 61 #else 62 63 fprintf(stderr, "__NR_sigprocmask not supported on this platform\n"); 64 65 #endif 66 67 return(0); 68 } 69
