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| author | Luís Marques <luis@luismarques.eu> | 2019-01-05 02:08:06 +0000 |
|---|---|---|
| committer | Andrew Waterman <aswaterman@gmail.com> | 2019-01-04 18:08:06 -0800 |
| commit | 31e531b2b4afe8ec5e08d700727afdbbbe45bf34 (patch) | |
| tree | ab87fa9f201640737681ea1e1b45eeed27e6c7f8 | |
| parent | cb28d01e1dc80ff9a0c599105bc4e97fdc5274e3 (diff) | |
| download | riscv-pk-31e531b2b4afe8ec5e08d700727afdbbbe45bf34.zip riscv-pk-31e531b2b4afe8ec5e08d700727afdbbbe45bf34.tar.gz riscv-pk-31e531b2b4afe8ec5e08d700727afdbbbe45bf34.tar.bz2 | |
Implement clock_gettime syscall (#139)
| -rw-r--r-- | pk/syscall.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/pk/syscall.c b/pk/syscall.c index d944c52..5a86c5c 100644 --- a/pk/syscall.c +++ b/pk/syscall.c @@ -380,6 +380,15 @@ int sys_gettimeofday(long* loc) return 0; } +long sys_clock_gettime(int clk_id, long *loc) +{ + uintptr_t t = rdcycle(); + loc[0] = t / CLOCK_FREQ; + loc[1] = (t % CLOCK_FREQ) / (CLOCK_FREQ / 1000000000); + + return 0; +} + ssize_t sys_writev(int fd, const long* iov, int cnt) { ssize_t ret = 0; @@ -455,7 +464,7 @@ long do_syscall(long a0, long a1, long a2, long a3, long a4, long a5, unsigned l [SYS_readlinkat] = sys_stub_nosys, [SYS_rt_sigprocmask] = sys_stub_success, [SYS_ioctl] = sys_stub_nosys, - [SYS_clock_gettime] = sys_stub_nosys, + [SYS_clock_gettime] = sys_clock_gettime, [SYS_getrusage] = sys_stub_nosys, [SYS_getrlimit] = sys_stub_nosys, [SYS_setrlimit] = sys_stub_nosys, |