X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/bb793d5c6918efee6a86de442463a7c9aaa4ecdd..59ecf21e36b2332f6adf2a568ef555283d8c119a:/lunaix-os/kernel/process/signal.c

diff --git a/lunaix-os/kernel/process/signal.c b/lunaix-os/kernel/process/signal.c
index 8c4322f..9989425 100644
--- a/lunaix-os/kernel/process/signal.c
+++ b/lunaix-os/kernel/process/signal.c
@@ -6,15 +6,19 @@
 #include <lunaix/syscall.h>
 #include <lunaix/syslog.h>
 
-LOG_MODULE("SIG")
-
 #include <klibc/string.h>
 
+#include <sys/mm/mempart.h>
+
+LOG_MODULE("SIG")
+
 extern struct scheduler sched_ctx; /* kernel/sched.c */
 
 #define UNMASKABLE (sigset(SIGKILL) | sigset(SIGTERM))
 #define TERMSIG (sigset(SIGSEGV) | sigset(SIGINT) | UNMASKABLE)
 #define CORE (sigset(SIGSEGV))
+#define within_kstack(addr)                                                    \
+    (KERNEL_STACK <= (addr) && (addr) <= KERNEL_STACK_END)
 
 static inline void
 signal_terminate(int errcode)
@@ -57,7 +61,7 @@ signal_dispatch()
 
     ptr_t ustack = __current->ustack_top;
 
-    if ((int)(ustack - USTACK_END) < (int)sizeof(struct proc_sig)) {
+    if ((int)(ustack - USR_STACK) < (int)sizeof(struct proc_sig)) {
         // 用户栈没有空间存放信号上下文
         return 0;
     }
@@ -107,7 +111,7 @@ signal_send(pid_t pid, int signum)
     } else if (!pid) {
         proc = __current;
         goto send_grp;
-    } else if (pid < -1) {
+    } else if (pid < 0) {
         proc = get_process(-pid);
         goto send_grp;
     } else {