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Leonmmcoset
2026-04-16 22:29:08 +08:00
parent 2d843a100e
commit 589a83cb07
29 changed files with 1397 additions and 49 deletions
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134
clks/kernel/syscall.c
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@@ -22,6 +22,9 @@
#define CLKS_SYSCALL_TTY_MAX_LEN 512U
#define CLKS_SYSCALL_FS_IO_MAX_LEN 65536U
#define CLKS_SYSCALL_JOURNAL_MAX_LEN 256U
#define CLKS_SYSCALL_ARG_LINE_MAX 256U
#define CLKS_SYSCALL_ENV_LINE_MAX 512U
#define CLKS_SYSCALL_ITEM_MAX 128U
#define CLKS_SYSCALL_USER_TRACE_BUDGET 128ULL
struct clks_syscall_frame {
@@ -87,6 +90,19 @@ static clks_bool clks_syscall_copy_user_string(u64 src_addr, char *dst, usize ds
return CLKS_TRUE;
}
static clks_bool clks_syscall_copy_user_optional_string(u64 src_addr, char *dst, usize dst_size) {
if (dst == CLKS_NULL || dst_size == 0U) {
return CLKS_FALSE;
}
if (src_addr == 0ULL) {
dst[0] = '\0';
return CLKS_TRUE;
}
return clks_syscall_copy_user_string(src_addr, dst, dst_size);
}
static u64 clks_syscall_log_write(u64 arg0, u64 arg1) {
const char *src = (const char *)arg0;
u64 len = arg1;
@@ -218,6 +234,31 @@ static u64 clks_syscall_exec_path(u64 arg0) {
return status;
}
static u64 clks_syscall_exec_pathv(u64 arg0, u64 arg1, u64 arg2) {
char path[CLKS_SYSCALL_PATH_MAX];
char argv_line[CLKS_SYSCALL_ARG_LINE_MAX];
char env_line[CLKS_SYSCALL_ENV_LINE_MAX];
u64 status = (u64)-1;
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_syscall_copy_user_optional_string(arg1, argv_line, sizeof(argv_line)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_syscall_copy_user_optional_string(arg2, env_line, sizeof(env_line)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_exec_run_pathv(path, argv_line, env_line, &status) == CLKS_FALSE) {
return (u64)-1;
}
return status;
}
static u64 clks_syscall_getpid(void) {
return clks_exec_current_pid();
}
@@ -237,6 +278,31 @@ static u64 clks_syscall_spawn_path(u64 arg0) {
return pid;
}
static u64 clks_syscall_spawn_pathv(u64 arg0, u64 arg1, u64 arg2) {
char path[CLKS_SYSCALL_PATH_MAX];
char argv_line[CLKS_SYSCALL_ARG_LINE_MAX];
char env_line[CLKS_SYSCALL_ENV_LINE_MAX];
u64 pid = (u64)-1;
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_syscall_copy_user_optional_string(arg1, argv_line, sizeof(argv_line)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_syscall_copy_user_optional_string(arg2, env_line, sizeof(env_line)) == CLKS_FALSE) {
return (u64)-1;
}
if (clks_exec_spawn_pathv(path, argv_line, env_line, &pid) == CLKS_FALSE) {
return (u64)-1;
}
return pid;
}
static u64 clks_syscall_waitpid(u64 arg0, u64 arg1) {
u64 status = (u64)-1;
u64 wait_ret = clks_exec_wait_pid(arg0, &status);
@@ -248,6 +314,54 @@ static u64 clks_syscall_waitpid(u64 arg0, u64 arg1) {
return wait_ret;
}
static u64 clks_syscall_proc_argc(void) {
return clks_exec_current_argc();
}
static u64 clks_syscall_proc_argv(u64 arg0, u64 arg1, u64 arg2) {
if (arg1 == 0ULL || arg2 == 0ULL) {
return 0ULL;
}
if (arg2 > CLKS_SYSCALL_ITEM_MAX) {
arg2 = CLKS_SYSCALL_ITEM_MAX;
}
return (clks_exec_copy_current_argv(arg0, (char *)arg1, (usize)arg2) == CLKS_TRUE) ? 1ULL : 0ULL;
}
static u64 clks_syscall_proc_envc(void) {
return clks_exec_current_envc();
}
static u64 clks_syscall_proc_env(u64 arg0, u64 arg1, u64 arg2) {
if (arg1 == 0ULL || arg2 == 0ULL) {
return 0ULL;
}
if (arg2 > CLKS_SYSCALL_ITEM_MAX) {
arg2 = CLKS_SYSCALL_ITEM_MAX;
}
return (clks_exec_copy_current_env(arg0, (char *)arg1, (usize)arg2) == CLKS_TRUE) ? 1ULL : 0ULL;
}
static u64 clks_syscall_proc_last_signal(void) {
return clks_exec_current_signal();
}
static u64 clks_syscall_proc_fault_vector(void) {
return clks_exec_current_fault_vector();
}
static u64 clks_syscall_proc_fault_error(void) {
return clks_exec_current_fault_error();
}
static u64 clks_syscall_proc_fault_rip(void) {
return clks_exec_current_fault_rip();
}
static u64 clks_syscall_exit(u64 arg0) {
return (clks_exec_request_exit(arg0) == CLKS_TRUE) ? 1ULL : 0ULL;
}
@@ -530,6 +644,8 @@ u64 clks_syscall_dispatch(void *frame_ptr) {
return clks_syscall_fs_read(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_EXEC_PATH:
return clks_syscall_exec_path(frame->rbx);
case CLKS_SYSCALL_EXEC_PATHV:
return clks_syscall_exec_pathv(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_EXEC_REQUESTS:
return clks_exec_request_count();
case CLKS_SYSCALL_EXEC_SUCCESS:
@@ -587,8 +703,26 @@ u64 clks_syscall_dispatch(void *frame_ptr) {
return clks_syscall_getpid();
case CLKS_SYSCALL_SPAWN_PATH:
return clks_syscall_spawn_path(frame->rbx);
case CLKS_SYSCALL_SPAWN_PATHV:
return clks_syscall_spawn_pathv(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_WAITPID:
return clks_syscall_waitpid(frame->rbx, frame->rcx);
case CLKS_SYSCALL_PROC_ARGC:
return clks_syscall_proc_argc();
case CLKS_SYSCALL_PROC_ARGV:
return clks_syscall_proc_argv(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_PROC_ENVC:
return clks_syscall_proc_envc();
case CLKS_SYSCALL_PROC_ENV:
return clks_syscall_proc_env(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_PROC_LAST_SIGNAL:
return clks_syscall_proc_last_signal();
case CLKS_SYSCALL_PROC_FAULT_VECTOR:
return clks_syscall_proc_fault_vector();
case CLKS_SYSCALL_PROC_FAULT_ERROR:
return clks_syscall_proc_fault_error();
case CLKS_SYSCALL_PROC_FAULT_RIP:
return clks_syscall_proc_fault_rip();
case CLKS_SYSCALL_EXIT:
return clks_syscall_exit(frame->rbx);
case CLKS_SYSCALL_SLEEP_TICKS: