+2011-06-27 Tristan Gingold <gingold@adacore.com>
+
+ * vms-misc.c (vms_time_to_time_t): Adjust overflow detection.
+ Add comment.
+
2011-06-25 H.J. Lu <hongjiu.lu@intel.com>
* elf64-x86-64.c (elf_backend_post_process_headers): Don't
- 100ns granularity
- epoch is Nov 17, 1858.
Here has the constants and the routines used to convert VMS from/to UNIX time.
- The conversion routines don't assume 64 bits arithmetic. */
+ The conversion routines don't assume 64 bits arithmetic.
+
+ Here we assume that the definition of time_t is the UNIX one, ie integer
+ type, expressing seconds since the epoch. */
/* UNIX time granularity for VMS, ie 1s / 100ns. */
#define VMS_TIME_FACTOR 10000000
unsigned int tmp;
unsigned int rlo;
int i;
+ time_t res;
/* First convert to seconds. */
tmp = hi % VMS_TIME_FACTOR;
lo = rlo;
/* Return 0 in case of overflow. */
- if (lo > VMS_TIME_OFFSET && hi > 1)
+ if (hi > 1
+ || (hi == 1 && lo >= VMS_TIME_OFFSET))
return 0;
/* Return 0 in case of underflow. */
- if (lo < VMS_TIME_OFFSET)
+ if (hi == 0 && lo < VMS_TIME_OFFSET)
return 0;
- return lo - VMS_TIME_OFFSET;
+ res = lo - VMS_TIME_OFFSET;
+ if (res <= 0)
+ return 0;
+ return res;
}
/* Convert a time_t to a VMS time. */