The Linux shminfo fields are '__syscall_ulong_t' (which is 64-bit
for x32). This patch fixes the test to compare againt the correct
type and to only clamp the value if '__syscall_ulong_t' is the same
size of 'unsigned long int'.
Checked on x86_64-linux-gnu-x32.
struct test_shminfo
{
- unsigned long int shmall;
- unsigned long int shmmax;
- unsigned long int shmmni;
+ __syscall_ulong_t shmall;
+ __syscall_ulong_t shmmax;
+ __syscall_ulong_t shmmni;
};
/* It tries to obtain some system-wide SysV shared memory information from
#if LONG_MAX == INT_MAX
/* Kernel explicit clamp the value for shmmax on compat symbol (32-bit
binaries running on 64-bit kernels). */
- if (v > INT_MAX)
+ if (sizeof (__syscall_ulong_t) == sizeof (unsigned long int)
+ && v > INT_MAX)
v = INT_MAX;
#endif
tipcinfo.shmmax = v;