Hi all
There may be some other bugs in tcc related to nocode_wanted
Check commit 78c076a70f5
The following check in tccgen.c is removed
if (nocode_wanted)
tcc_error("statement expression in global scope");
This check is introduced in commit 5bcc3eed7b93 and breaks compilation
of the linux 2.4.26 kernel.
commit 5bcc3ee
Author: Thomas Preud'homme
Add some missing nocode_wanted guard
A test program related to this issue:
=========================
typedef unsigned int __u32;
struct romfs_super_block {
__u32 word0;
__u32 word1;
__u32 size;
__u32 checksum;
char name[0];
};
int main() {
struct romfs_super_block *romfsb;
int nblocks = ((__builtin_constant_p((__u32)((romfsb->size))) ?
({ __u32 __x = (((romfsb->size))); ((__u32)( (((__u32)(__x) &
(__u32)0x000000ffUL) << 24)
| (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) |
(((__u32)(__x) & (__u32)0x00ff0000UL) >> 8)
| (((__u32)(__x) & (__u32)0xff000000UL) >> 24) )); })
: __fswab32(((romfsb->size))))+(1<<10)-1)>>10;
}
======================
typedef unsigned int __u32;
struct romfs_super_block {
__u32 word0;
__u32 word1;
__u32 size;
__u32 checksum;
char name[0];
};
int main() {
struct romfs_super_block *romfsb;
int nblocks = ((__builtin_constant_p((__u32)((romfsb->size))) ?
({ __u32 __x = (((romfsb->size))); ((__u32)( (((__u32)(__x) & (__u32)0x000000ffUL) << 24)
| (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | (((__u32)(__x) & (__u32)0x00ff0000UL) >> 8)
| (((__u32)(__x) & (__u32)0xff000000UL) >> 24) )); })
: __fswab32(((romfsb->size))))+(1<<10)-1)>>10;
}
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