diff options
Diffstat (limited to 'na/kernel/syscall.cc')
| -rw-r--r-- | na/kernel/syscall.cc | 115 |
1 files changed, 112 insertions, 3 deletions
diff --git a/na/kernel/syscall.cc b/na/kernel/syscall.cc index 4dfbb5d..a5b80ec 100644 --- a/na/kernel/syscall.cc +++ b/na/kernel/syscall.cc @@ -15,6 +15,8 @@ #include <lume/errno.h> #include <lume/kprintf.h> #include <lume/klog.h> +#include <lume/console.h> +#include <arch/cpu.h> /* ====================================================================== * Jump table @@ -30,12 +32,23 @@ static SyscallHandler sys_call_table[kNrSyscalls]; int64 syscall_dispatch(uint64 nr, uint64 args[6]) { - if (nr >= static_cast<uint64>(kNrSyscalls)) + if (nr >= static_cast<uint64>(kNrSyscalls)) { + kprintf("[syscall] nr=%llu out of range\n", nr); return -ENOSYS; + } + + /* Per-syscall entry trace. KLOG_DEBUG keeps it out of the console + * by default; enable via klog_set_level(KLOG_DEBUG) or read the + * ring buffer to investigate. Subsys mask gates this further. */ + pr_debug_s(KLOG_SUBSYS_SYSCALL, + "syscall: nr=%llu a0=%llx a1=%llx a2=%llx a3=%llx\n", + nr, args[0], args[1], args[2], args[3]); SyscallHandler handler = sys_call_table[nr]; - if (!handler) + if (!handler) { + kprintf("[syscall] unimplemented nr=%llu\n", nr); return -ENOSYS; + } return handler(args[0], args[1], args[2], args[3], args[4], args[5]); @@ -57,6 +70,7 @@ int64 sys_wait4_wrapper(uint64, uint64, uint64, uint64, uint64, uint64); int64 sys_set_tid_address(uint64, uint64, uint64, uint64, uint64, uint64); int64 sys_getuid(uint64, uint64, uint64, uint64, uint64, uint64); int64 sys_getgid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_nanosleep(uint64, uint64, uint64, uint64, uint64, uint64); /* sys_mm.cc */ int64 sys_brk(uint64, uint64, uint64, uint64, uint64, uint64); @@ -67,6 +81,52 @@ int64 sys_mprotect(uint64, uint64, uint64, uint64, uint64, uint64); /* sys_info.cc */ int64 sys_uname(uint64, uint64, uint64, uint64, uint64, uint64); +/* sys_fs.cc */ +int64 sys_openat(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_close(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_read(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_write(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_lseek(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_fstat_wrapper(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_getdents64(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_dup(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_dup3(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_getcwd(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_chdir(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_mkdirat(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_unlinkat(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_writev(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_ioctl(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_ppoll(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_pipe2(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_fcntl(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_socket(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_sendto(uint64, uint64, uint64, uint64, uint64, uint64); + +/* sys_signal.cc */ +int64 sys_kill(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_tkill(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_tgkill(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_rt_sigaction(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_rt_sigprocmask(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_rt_sigreturn(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_rt_sigtimedwait(uint64, uint64, uint64, uint64, uint64, uint64); + +/* exec.cc */ +int64 sys_execve_wrapper(uint64, uint64, uint64, uint64, uint64, uint64); + +/* sys_misc.cc */ +int64 sys_reboot(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_prctl(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_setsid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_getsid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_setpgid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_getpgid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_geteuid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_getegid(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_sigaltstack(uint64, uint64, uint64, uint64, uint64, uint64); +int64 sys_clock_gettime(uint64, uint64, uint64, uint64, uint64, uint64); + /* ====================================================================== * syscall_init — register all handlers * ====================================================================== */ @@ -95,5 +155,54 @@ void syscall_init() sys_call_table[SYS_mprotect] = sys_mprotect; sys_call_table[SYS_uname] = sys_uname; - printk(KERN_INFO "init: syscall_init done (16 handlers registered)\n"); + /* Phase 3: filesystem */ + sys_call_table[SYS_openat] = sys_openat; + sys_call_table[SYS_close] = sys_close; + sys_call_table[SYS_read] = sys_read; + sys_call_table[SYS_write] = sys_write; + sys_call_table[SYS_lseek] = sys_lseek; + sys_call_table[SYS_fstat] = sys_fstat_wrapper; + sys_call_table[SYS_getdents64] = sys_getdents64; + sys_call_table[SYS_dup] = sys_dup; + sys_call_table[SYS_dup3] = sys_dup3; + sys_call_table[SYS_getcwd] = sys_getcwd; + sys_call_table[SYS_chdir] = sys_chdir; + sys_call_table[SYS_mkdirat] = sys_mkdirat; + sys_call_table[SYS_unlinkat] = sys_unlinkat; + sys_call_table[SYS_writev] = sys_writev; + sys_call_table[SYS_ioctl] = sys_ioctl; + sys_call_table[SYS_ppoll] = sys_ppoll; + + /* Phase 4: signals */ + sys_call_table[SYS_kill] = sys_kill; + sys_call_table[SYS_tkill] = sys_tkill; + sys_call_table[SYS_tgkill] = sys_tgkill; + sys_call_table[SYS_rt_sigaction] = sys_rt_sigaction; + sys_call_table[SYS_rt_sigprocmask] = sys_rt_sigprocmask; + sys_call_table[SYS_rt_sigreturn] = sys_rt_sigreturn; + sys_call_table[SYS_rt_sigtimedwait] = sys_rt_sigtimedwait; + + /* Phase 5: exec */ + sys_call_table[SYS_execve] = sys_execve_wrapper; + + /* Phase 6: pipe + fcntl */ + sys_call_table[SYS_pipe2] = sys_pipe2; + sys_call_table[SYS_fcntl] = sys_fcntl; + + /* Phase 7: busybox bootstrap */ + sys_call_table[SYS_reboot] = sys_reboot; + sys_call_table[SYS_prctl] = sys_prctl; + sys_call_table[SYS_setsid] = sys_setsid; + sys_call_table[SYS_getsid] = sys_getsid; + sys_call_table[SYS_setpgid] = sys_setpgid; + sys_call_table[SYS_getpgid] = sys_getpgid; + sys_call_table[SYS_geteuid] = sys_geteuid; + sys_call_table[SYS_getegid] = sys_getegid; + sys_call_table[SYS_sigaltstack] = sys_sigaltstack; + sys_call_table[SYS_clock_gettime] = sys_clock_gettime; + sys_call_table[SYS_nanosleep] = sys_nanosleep; + sys_call_table[SYS_socket] = sys_socket; + sys_call_table[SYS_sendto] = sys_sendto; + + printk(KERN_INFO "init: syscall_init done (%d handlers registered)\n", 46); } |