summaryrefslogtreecommitdiff
path: root/arch/x86/entry/syscall_64.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/entry/syscall_64.c')
-rw-r--r--arch/x86/entry/syscall_64.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c
index be120eec1fc9..ba8354424860 100644
--- a/arch/x86/entry/syscall_64.c
+++ b/arch/x86/entry/syscall_64.c
@@ -8,11 +8,29 @@
#include <asm/syscall.h>
#define __SYSCALL(nr, sym) extern long __x64_##sym(const struct pt_regs *);
+#define __SYSCALL_NORETURN(nr, sym) extern long __noreturn __x64_##sym(const struct pt_regs *);
#include <asm/syscalls_64.h>
-#undef __SYSCALL
+#undef __SYSCALL
-#define __SYSCALL(nr, sym) __x64_##sym,
+#undef __SYSCALL_NORETURN
+#define __SYSCALL_NORETURN __SYSCALL
-asmlinkage const sys_call_ptr_t sys_call_table[] = {
+/*
+ * The sys_call_table[] is no longer used for system calls, but
+ * kernel/trace/trace_syscalls.c still wants to know the system
+ * call address.
+ */
+#define __SYSCALL(nr, sym) __x64_##sym,
+const sys_call_ptr_t sys_call_table[] = {
#include <asm/syscalls_64.h>
};
+#undef __SYSCALL
+
+#define __SYSCALL(nr, sym) case nr: return __x64_##sym(regs);
+long x64_sys_call(const struct pt_regs *regs, unsigned int nr)
+{
+ switch (nr) {
+ #include <asm/syscalls_64.h>
+ default: return __x64_sys_ni_syscall(regs);
+ }
+};