path: root/src/signal/getitimer.c
diff options
authorRich Felker <>2019-07-29 20:57:05 -0400
committerRich Felker <>2019-07-29 20:57:05 -0400
commit558c01338b0b635632e70af6ec8a484ca70b0328 (patch)
tree1be25aedf065a1d1862cc6f351f9a3ddb88d3916 /src/signal/getitimer.c
parentb74b3eb4a280c7179971a98df94af6f28942a2ad (diff)
setitimer, getitimer: decouple time_t from long
these functions have no new time64 syscall, so the existence of a time64 syscall cannot be used as the condition for the new code. instead, assume the syscall takes timevals as longs, which is true everywhere but x32, and interface with the kernel through long[4] objects. rather than adding new hacks to special-case x32 here, just add x32-specific source files since a trivial syscall wrapper suffices there. the new code paths added in this commit are statically unreachable on all current archs, but will become reachable when 32-bit archs get 64-bit time_t.
Diffstat (limited to 'src/signal/getitimer.c')
1 files changed, 11 insertions, 0 deletions
diff --git a/src/signal/getitimer.c b/src/signal/getitimer.c
index 8a8046a7..36d1eb9d 100644
--- a/src/signal/getitimer.c
+++ b/src/signal/getitimer.c
@@ -3,5 +3,16 @@
int getitimer(int which, struct itimerval *old)
+ if (sizeof(time_t) > sizeof(long)) {
+ long old32[4];
+ int r = __syscall(SYS_getitimer, which, old32);
+ if (!r) {
+ old->it_interval.tv_sec = old32[0];
+ old->it_interval.tv_usec = old32[1];
+ old->it_value.tv_sec = old32[2];
+ old->it_value.tv_usec = old32[3];
+ }
+ return __syscall_ret(r);
+ }
return syscall(SYS_getitimer, which, old);