kernel: make sure signal handlers get the right GS descriptor

2021-02-16 19:17:44 +09:00 · 2021-02-16 19:17:44 +09:00 · 32c0b670b7
commit 32c0b670b7
parent 97d02d6e23
1 changed files with 1 additions and 0 deletions
--- a/kernel/sys/signal.c
+++ b/kernel/sys/signal.c
@ -24,6 +24,7 @@ void enter_signal_handler(uintptr_t location, int signum, uintptr_t stack) {
 			"mov %%ax, %%ds\n"
 			"mov %%ax, %%es\n"
 			"mov %%ax, %%fs\n"
+			"mov $0x33, %%ax\n"    /* Segment selector */
 			"mov %%ax, %%gs\n"
 			"mov %%esp, %%eax\n"   /* Stack -> EAX */
 			"pushl $0x23\n"        /* Segment selector again */