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fd子系统

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Leonmmcoset
2026-04-17 22:23:14 +08:00
parent 56bfa58e56
commit 59b1b05e0d
7 changed files with 561 additions and 3 deletions
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46
clks/kernel/syscall.c
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@@ -32,7 +32,7 @@
#define CLKS_SYSCALL_KDBG_STACK_WINDOW_BYTES (128ULL * 1024ULL)
#define CLKS_SYSCALL_KERNEL_SYMBOL_FILE "/system/kernel.sym"
#define CLKS_SYSCALL_KERNEL_ADDR_BASE 0xFFFF800000000000ULL
#define CLKS_SYSCALL_STATS_MAX_ID CLKS_SYSCALL_STATS_RECENT_ID
#define CLKS_SYSCALL_STATS_MAX_ID CLKS_SYSCALL_FD_DUP
#define CLKS_SYSCALL_STATS_RING_SIZE 256U
struct clks_syscall_frame {
@@ -210,6 +210,40 @@ static u64 clks_syscall_kbd_get_char(void) {
return (u64)(u8)ch;
}
static u64 clks_syscall_fd_open(u64 arg0, u64 arg1, u64 arg2) {
char path[CLKS_SYSCALL_PATH_MAX];
if (clks_syscall_copy_user_string(arg0, path, sizeof(path)) == CLKS_FALSE) {
return (u64)-1;
}
return clks_exec_fd_open(path, arg1, arg2);
}
static u64 clks_syscall_fd_read(u64 arg0, u64 arg1, u64 arg2) {
if (arg2 > 0ULL && arg1 == 0ULL) {
return (u64)-1;
}
return clks_exec_fd_read(arg0, (void *)arg1, arg2);
}
static u64 clks_syscall_fd_write(u64 arg0, u64 arg1, u64 arg2) {
if (arg2 > 0ULL && arg1 == 0ULL) {
return (u64)-1;
}
return clks_exec_fd_write(arg0, (const void *)arg1, arg2);
}
static u64 clks_syscall_fd_close(u64 arg0) {
return clks_exec_fd_close(arg0);
}
static u64 clks_syscall_fd_dup(u64 arg0) {
return clks_exec_fd_dup(arg0);
}
static clks_bool clks_syscall_procfs_is_root(const char *path) {
return (path != CLKS_NULL && clks_strcmp(path, "/proc") == 0) ? CLKS_TRUE : CLKS_FALSE;
}
@@ -1786,6 +1820,16 @@ u64 clks_syscall_dispatch(void *frame_ptr) {
return clks_syscall_stats_recent_window();
case CLKS_SYSCALL_STATS_RECENT_ID:
return clks_syscall_stats_recent_id(frame->rbx);
case CLKS_SYSCALL_FD_OPEN:
return clks_syscall_fd_open(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_FD_READ:
return clks_syscall_fd_read(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_FD_WRITE:
return clks_syscall_fd_write(frame->rbx, frame->rcx, frame->rdx);
case CLKS_SYSCALL_FD_CLOSE:
return clks_syscall_fd_close(frame->rbx);
case CLKS_SYSCALL_FD_DUP:
return clks_syscall_fd_dup(frame->rbx);
default:
return (u64)-1;
}