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Leonmmcoset
2026-04-13 22:37:39 +08:00
parent f9e0190abe
commit d1d514c16a
13 changed files with 514 additions and 58 deletions
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41
clks/kernel/syscall.c
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@@ -19,6 +19,7 @@
#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_USER_TRACE_BUDGET 128ULL
struct clks_syscall_frame {
u64 rax;
@@ -46,6 +47,8 @@ struct clks_syscall_frame {
};
static clks_bool clks_syscall_ready = CLKS_FALSE;
static clks_bool clks_syscall_user_trace_active = CLKS_FALSE;
static u64 clks_syscall_user_trace_budget = 0ULL;
static clks_bool clks_syscall_copy_user_string(u64 src_addr, char *dst, usize dst_size) {
const char *src = (const char *)src_addr;
@@ -375,8 +378,43 @@ static u64 clks_syscall_log_journal_read(u64 arg0, u64 arg1, u64 arg2) {
return 1ULL;
}
static void clks_syscall_trace_user_program(u64 id) {
clks_bool user_program_running =
(clks_exec_is_running() == CLKS_TRUE && clks_exec_current_path_is_user() == CLKS_TRUE)
? CLKS_TRUE
: CLKS_FALSE;
if (user_program_running == CLKS_FALSE) {
if (clks_syscall_user_trace_active == CLKS_TRUE) {
clks_log(CLKS_LOG_DEBUG, "SYSCALL", "USER_TRACE_END");
}
clks_syscall_user_trace_active = CLKS_FALSE;
clks_syscall_user_trace_budget = 0ULL;
return;
}
if (clks_syscall_user_trace_active == CLKS_FALSE) {
clks_syscall_user_trace_active = CLKS_TRUE;
clks_syscall_user_trace_budget = CLKS_SYSCALL_USER_TRACE_BUDGET;
clks_log(CLKS_LOG_DEBUG, "SYSCALL", "USER_TRACE_BEGIN");
clks_log_hex(CLKS_LOG_DEBUG, "SYSCALL", "PID", clks_exec_current_pid());
}
if (clks_syscall_user_trace_budget > 0ULL) {
clks_log_hex(CLKS_LOG_DEBUG, "SYSCALL", "USER_ID", id);
clks_syscall_user_trace_budget--;
if (clks_syscall_user_trace_budget == 0ULL) {
clks_log(CLKS_LOG_DEBUG, "SYSCALL", "USER_TRACE_BUDGET_EXHAUSTED");
}
}
}
void clks_syscall_init(void) {
clks_syscall_ready = CLKS_TRUE;
clks_syscall_user_trace_active = CLKS_FALSE;
clks_syscall_user_trace_budget = 0ULL;
clks_log(CLKS_LOG_INFO, "SYSCALL", "INT80 FRAMEWORK ONLINE");
}
@@ -389,6 +427,7 @@ u64 clks_syscall_dispatch(void *frame_ptr) {
}
id = frame->rax;
clks_syscall_trace_user_program(id);
switch (id) {
case CLKS_SYSCALL_LOG_WRITE:
@@ -506,4 +545,4 @@ u64 clks_syscall_invoke_kernel(u64 id, u64 arg0, u64 arg1, u64 arg2) {
);
return ret;
}
}