Bug 1571290 - Allow clock_gettime64 in the 32-bit linux seccomp-bpf profile. r=jld

Differential Revision: https://phabricator.services.mozilla.com/D76351

security/sandbox/linux/SandboxFilter.cpp

@@ -478,6 +478,9 @@ class SandboxPolicyCommon : public SandboxPolicyBase {
         // Timekeeping
       case __NR_clock_nanosleep:
       case __NR_clock_getres:
+#ifdef __NR_clock_gettime64
+      case __NR_clock_gettime64:
+#endif
       case __NR_clock_gettime: {
         // clockid_t can encode a pid or tid to monitor another
         // process or thread's CPU usage (see CPUCLOCK_PID and related