push/pop r15 when entering/leaving kernel space (fix for bug #53: r15 wasn't propagated during fork())

2014-07-10 13:53:12 +09:00
parent 36cff84e05
commit 31a605f94b
2 changed files with 8 additions and 6 deletions
--- a/arch/x86/kernel/include/registers.h
+++ b/arch/x86/kernel/include/registers.h
@ -136,7 +136,7 @@ struct tss64 {
 } __attribute__((packed));

 struct x86_regs {
-	unsigned long r11, r10, r9, r8;
+	unsigned long r15, r11, r10, r9, r8;
 	unsigned long rdi, rsi, rdx, rcx, rbx, rax, rbp;
 	unsigned long error, rip, cs, rflags, rsp, ss;
 };