Re: toolchain/53081: __BITMAP_* bitops macros broken with gcc 6.4

[christos%zoulas.com@localhost (Christos Zoulas)]

On Mar 8,  9:30am, martin%NetBSD.org@localhost (martin%NetBSD.org@localhost) wrote:
-- Subject: toolchain/53081: __BITMAP_* bitops macros broken with gcc 6.4

The fix to change the 1 to 1ul is incomplete:

#include <stdio.h>
#include <sys/types.h>
#include <sys/bitops.h>

int
main(void)
{
        __BITMAP_TYPE(,unsigned long long, 256) bitmap;

        // clear the whole bitmap
        __BITMAP_ZERO(&bitmap);

        // set a single bit
        __BITMAP_SET(0, &bitmap);
        __BITMAP_SET(63, &bitmap);

        // show all bits that are set
        for (size_t i = 0; i < 256; i++) {
                if (!__BITMAP_ISSET(i, &bitmap))
                        continue;
                printf("bit %zu is set\n", i);
        }

        // dump whole bitmap for examination
        for (size_t i = 0; i < __arraycount(bitmap._b); i++)
                printf("%zu: %016llx\n", i, bitmap._b[i]);

        return 0;
}

[3:02pm] 1536>cc -m32 bm.c
[3:02pm] 1537>./a.out 
bit 0 is set
bit 32 is set
0: 0000000000000001
1: 0000000000000000
2: 0000000000000000
3: 0000000000000000

christos