trace output buffers for clock_gettime

Reviewed By: jasonwhite

Differential Revision: D40946575

fbshipit-source-id: 5ca05f7d38ebd1eb7e031f017482ef8358bf1f2d

Author: VladimirMakaev

reverie-syscalls/src/args/time.rs

@@ -76,6 +76,16 @@ impl From<Timespec> for libc::timeval {
     }
 }
 
+impl std::fmt::Display for Timespec {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+        write!(
+            f,
+            "{{ tv_sec: {}, tv_nsec: {} }}",
+            self.tv_sec, self.tv_nsec
+        )
+    }
+}
+
 /// A serializable version of `libc::timeval`.
 #[derive(Serialize, Deserialize)]
 #[derive(Default, Copy, Clone, Eq, PartialEq, Debug, Hash)]
@@ -107,5 +117,7 @@ pub struct Timezone {
 }
 
 crate::impl_displayable!(Display Timeval);
+crate::impl_displayable!(Display Timespec);
 
 crate::displayable_ptr!(TimevalMutPtr, AddrMut<Timeval>);
+crate::displayable_ptr!(TimespecMutPtr, AddrMut<Timespec>);

reverie-syscalls/src/syscalls/mod.rs

@@ -39,6 +39,7 @@ use crate::args::StatPtr;
 use crate::args::StatxMask;
 use crate::args::StatxPtr;
 use crate::args::Timespec;
+use crate::args::TimespecMutPtr;
 use crate::args::TimevalMutPtr;
 use crate::args::Timezone;
 use crate::display::Displayable;
@@ -2297,7 +2298,7 @@ typed_syscall! {
 typed_syscall! {
     pub struct ClockGettime {
         clockid: ClockId,
-        tp: Option<AddrMut<Timespec>>,
+        tp: Option<TimespecMutPtr>,
     }
 }