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authorAlistair Francis2019-09-18 09:28:51 -0700
committerDenys Vlasenko2019-10-08 16:31:54 +0200
commitad27d44ebe950335616f37e36863469dc181b455 (patch)
tree2b7908945364f3106f94678f06259742b3c68321
parent902d3992922fc8db8495d5fb30a4581711b60c62 (diff)
downloadbusybox-ad27d44ebe950335616f37e36863469dc181b455.zip
busybox-ad27d44ebe950335616f37e36863469dc181b455.tar.gz
runsv: Use 64 prefix syscall if we have to
Some 32-bit architectures no longer have the 32-bit time_t syscalls. Instead they have suffixed syscalls that returns a 64-bit time_t. If the architecture doesn't have the non-suffixed syscall and is using a 64-bit time_t let's use the suffixed syscall instead. This fixes build issues when building for RISC-V 32-bit with 5.1+ kernel headers. If an architecture only supports the suffixed syscalls, but is still using a 32-bit time_t report a compilation error. This avoids us have to deal with converting between 64-bit and 32-bit values. There are currently no architectures where this is the case. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--runit/runsv.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/runit/runsv.c b/runit/runsv.c
index ccc762d..737909b 100644
--- a/runit/runsv.c
+++ b/runit/runsv.c
@@ -55,7 +55,14 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* typically requiring -lrt. We just skip all this mess */
static void gettimeofday_ns(struct timespec *ts)
{
+#if defined(__NR_clock_gettime)
syscall(__NR_clock_gettime, CLOCK_REALTIME, ts);
+#elif __TIMESIZE == 64
+ syscall(__NR_clock_gettime64, CLOCK_REALTIME, ts);
+#else
+# error "We currently don't support architectures without " \
+ "the __NR_clock_gettime syscall and 32-bit time_t"
+#endif
}
#else
static void gettimeofday_ns(struct timespec *ts)