Hello,
> So stat, lstat, and all other related function will return -EOVERFLOW
> unless their 64 bits stat64, lstat64 counterpart is used.
>
> So I think this means that one cannot build the Guix bootstrap toolchain on an
> NVME disk.
After further investigations I think that it is needed to patch GNU Mes
to fix this bug.
We would need to add three new syscalls for x86:
--8<---------------cut here---------------start------------->8---
#define SYS_stat64 0xc3
#define SYS_lstat64 0xc4
#define SYS_fstat64 0xc5
--8<---------------cut here---------------end--------------->8---
lib/linux/stat.c should be modified this way:
--8<---------------cut here---------------start------------->8---
#if __i386__
#define STAT_SYSCALL SYS_stat64
#else
#define STAT_SYSCALL SYS_stat
#endif
int
stat (char const *file_name, struct stat *statbuf)
{
struct stat64 statbuf64;
int ret;
ret = _sys_call2 (STAT_SYSCALL, (long) file_name, (long) &statbuf64);
#if __i386__
stat64_to_32(&statbuf64, statbuf);
#else
*statbuf = statbuf64;
#endif
return ret;
}
--8<---------------cut here---------------end--------------->8---
Then we would need to create stat64_to_32 which could be inspired from
__xstat64_conv from the glibc. Then, lstat and fstat64 would need to be
patched the same way.
This way, we would replicate the glibc behavior.
Thanks,
Mathieu
