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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/dispatch.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/dispatch.c')
| -rw-r--r-- | common/uapi/dispatch.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/common/uapi/dispatch.c b/common/uapi/dispatch.c index d071db3..a9caa1e 100644 --- a/common/uapi/dispatch.c +++ b/common/uapi/dispatch.c @@ -23,7 +23,7 @@ SYSCALL_DEFINE0(noop)(struct tcb *t) { info("sys_noop\n"); - set_args(t, SYS_RET1(OK)); + set_args1(t, OK); } /** @@ -37,7 +37,7 @@ SYSCALL_DEFINE0(noop)(struct tcb *t) SYSCALL_DEFINE1(putch)(struct tcb *t, sys_arg_t a) { dbg("%c", (char)a); - set_args(t, SYS_RET1(OK)); + set_args1(t, OK); } void handle_syscall(sys_arg_t syscall, sys_arg_t a, sys_arg_t b, @@ -79,7 +79,7 @@ void handle_syscall(sys_arg_t syscall, sys_arg_t a, sys_arg_t b, default: error("Syscall %zu outside allowed range [0 - %i]\n", syscall, SYS_NUM - 1); - set_args(t, SYS_RET1(ERR_INVAL)); + set_args1(t, ERR_INVAL); }; if (check_canary(t)) { |