/*****************************************************************************/ /* test 'nodata_wanted' data output suppression */ /*-* test 1: initializer not computable 1 */ void foo() { if (1) { static short w = (int)&foo; /* error */ } } /*-* test 2: initializer not computable 2 */ void foo() { if (0) { static short w = (int)&foo; /* error */ } } /*-* test 3: initializer not computable 3 */ void foo(); static short w = (int)&foo; /* error */ /*-* test 4: 2 cast warnings */ void foo() { short w = &foo; /* no error */ } /*-* test 5; nodata_wanted test */ #include #define DATA_LBL(s) \ __asm__(".global d"#s",t"#s"\n.data\nd"#s":\n.text\nt"#s":\n"); \ extern char d##s[],t##s[]; #define PROG \ static void *p = (void*)&main;\ static char cc[] = "static string";\ static double d = 8.0;\ static struct __attribute__((packed)) {\ unsigned x : 12;\ unsigned char y : 7;\ unsigned z : 28, a: 4, b: 5;\ } s = { 0x333,0x44,0x555555,6,7 };\ printf(" static data: %d - %.1f - %.1f - %s - %s\n",\ sizeof 8.0, 8.0, d, __FUNCTION__, cc);\ printf(" static bitfields: %x %x %x %x %x\n", s.x, s.y, s.z, s.a, s.b); int main() { printf("suppression off\n"); DATA_LBL(s1); if (1) { PROG } DATA_LBL(e1); printf(" data length is %s\n", de1 - ds1 ? "not 0":"0"); //printf(" text length is %s\n", te1 - ts1 ? "not 0":"0"); printf("suppression on\n"); DATA_LBL(s2); if (0) { PROG } DATA_LBL(e2); printf(" data length is %x\n", de2 - ds2); //printf(" text length is %X\n", te2 - ts2); return 0; } /*-* test 6: some test */ int main() { return 34; }