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| author | Kimplul <kimi.h.kuparinen@gmail.com> | 2023-07-27 20:29:28 +0300 |
|---|---|---|
| committer | Kimplul <kimi.h.kuparinen@gmail.com> | 2023-07-27 20:29:28 +0300 |
| commit | 3212707a9ab549119ad0ad6441a07fe774c99f3b (patch) | |
| tree | 9df1e69c92dabfea37202008f77f8a100c0a7de4 /common/uapi/timers.c | |
| parent | a26fb216729ba7a7d0fbfc97c2082c9db512aa36 (diff) | |
| download | kmi-3212707a9ab549119ad0ad6441a07fe774c99f3b.tar.gz kmi-3212707a9ab549119ad0ad6441a07fe774c99f3b.zip | |
use nifty variable argument count trick
+ Found it in newlib. This allows the compiler to more effectively
optimize away unnecessary register operations. Applied to both kernel
and init.c for a slight speed increase.
I really should move init.c to some other repository though, the
binary files are starting to get annoying
Diffstat (limited to 'common/uapi/timers.c')
| -rw-r--r-- | common/uapi/timers.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/common/uapi/timers.c b/common/uapi/timers.c index 0d0ac50..b119fcc 100644 --- a/common/uapi/timers.c +++ b/common/uapi/timers.c @@ -43,9 +43,9 @@ SYSCALL_DEFINE0(timebase)(struct tcb *t) { ticks_t tm = secs_to_ticks(1); #if defined(_LP64) - return_args(t, SYS_RET2(OK, tm)); + return_args2(t, OK, tm); #else - return_args(t, SYS_RET3(OK, tm >> 32, tm)); + return_args3(t, OK, tm >> 32, tm); #endif } @@ -64,9 +64,9 @@ SYSCALL_DEFINE0(ticks)(struct tcb *t) { ticks_t tm = current_ticks(); #if defined(_LP64) - return_args(t, SYS_RET2(OK, tm)); + return_args2(t, OK, tm); #else - return_args(t, SYS_RET3(OK, tm >> 32, tm)); + return_args3(t, OK, tm >> 32, tm); #endif } @@ -84,9 +84,7 @@ SYSCALL_DEFINE0(ticks)(struct tcb *t) */ SYSCALL_DEFINE2(req_rel_timer)(struct tcb *t, sys_arg_t ticks, sys_arg_t mult) { - return_args(t, - SYS_RET2(OK, - new_rel_timer(t->tid, scaled_ticks(ticks, mult)))); + return_args2(t, OK, new_rel_timer(t->tid, scaled_ticks(ticks, mult))); } /** @@ -100,9 +98,7 @@ SYSCALL_DEFINE2(req_rel_timer)(struct tcb *t, sys_arg_t ticks, sys_arg_t mult) */ SYSCALL_DEFINE2(req_abs_timer)(struct tcb *t, sys_arg_t ticks, sys_arg_t mult) { - return_args(t, - SYS_RET2(OK, - new_abs_timer(t->tid, scaled_ticks(ticks, mult)))); + return_args2(t, OK, new_abs_timer(t->tid, scaled_ticks(ticks, mult))); } /** @@ -117,8 +113,8 @@ SYSCALL_DEFINE1(free_timer)(struct tcb *t, sys_arg_t cid) { struct timer *timer = find_timer(cid); if (!timer) - return_args(t, SYS_RET1(ERR_NF)); + return_args1(t, ERR_NF); remove_timer(timer); - return_args(t, SYS_RET1(OK)); + return_args1(t, OK); } |