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7f1ab9b1e1
The existing variable 'nocode_wanted' is now used to control
output of static data too. So...
(nocode_wanted == 0)
code and data (normal within functions)
(nocode_wanted < 0)
means: no code, but data (global or static data)
(nocode_wanted > 0)
means: no code and no data (code and data suppressed)
(nocode_wanted & 0xC0000000)
means: we're in declaration of static data
Also: new option '-dT' to be used with -run
tcc -dT -run file.c
This will look in file.c for certain comment-boundaries:
/*-* test-xxx: ...some description */
and then for each test below run it from memory. This way
various features and error messages can be tested with one
single file. See 96_nodata_wanted.c for an example.
Also: tccgen.c: one more bitfield fix
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/*****************************************************************************/
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/* test 'nodata_wanted' data output suppression */
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/*-* test 1: initializer not computable 1 */
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void foo() {
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if (1) {
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static short w = (int)&foo; /* error */
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}
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}
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/*-* test 2: initializer not computable 2 */
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void foo() {
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if (0) {
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static short w = (int)&foo; /* error */
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}
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}
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/*-* test 3: initializer not computable 3 */
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void foo();
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static short w = (int)&foo; /* error */
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/*-* test 4: 2 cast warnings */
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void foo() {
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short w = &foo; /* no error */
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}
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/*-* test 5; nodata_wanted test */
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#include <stdio.h>
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#define DATA_LBL(s) \
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__asm__(".global d"#s",t"#s"\n.data\nd"#s":\n.text\nt"#s":\n"); \
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extern char d##s[],t##s[];
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#define PROG \
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static void *p = (void*)&main;\
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static char cc[] = "static string";\
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static double d = 8.0;\
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static struct __attribute__((packed)) {\
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unsigned x : 12;\
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unsigned char y : 7;\
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unsigned z : 28, a: 4, b: 5;\
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} s = { 0x333,0x44,0x555555,6,7 };\
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printf(" static data: %d - %.1f - %.1f - %s - %s\n",\
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sizeof 8.0, 8.0, d, __FUNCTION__, cc);\
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printf(" static bitfields: %x %x %x %x %x\n", s.x, s.y, s.z, s.a, s.b);
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int main()
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{
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printf("suppression off\n");
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DATA_LBL(s1);
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if (1) {
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PROG
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}
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DATA_LBL(e1);
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printf(" data length is %s\n", de1 - ds1 ? "not 0":"0");
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//printf(" text length is %s\n", te1 - ts1 ? "not 0":"0");
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printf("suppression on\n");
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DATA_LBL(s2);
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if (0) {
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PROG
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}
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DATA_LBL(e2);
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printf(" data length is %x\n", de2 - ds2);
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//printf(" text length is %X\n", te2 - ts2);
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return 0;
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}
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/*-* test 6: some test */
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int main()
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{
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return 34;
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}
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