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-rw-r--r--src/_sys.x86-64.s21
1 files changed, 21 insertions, 0 deletions
diff --git a/src/_sys.x86-64.s b/src/_sys.x86-64.s
new file mode 100644
index 00000000..415a8084
--- /dev/null
+++ b/src/_sys.x86-64.s
@@ -0,0 +1,21 @@
+.global __syscall
+__syscall:
+ mov %rdi, %rax
+ mov %rsi, %rdi
+ mov %rdx, %rsi
+ mov %rcx, %rdx
+ mov %r8, %r10
+ mov %r9, %r8
+ mov 8(%rsp), %r9
+ syscall
+ ret
+
+.global _start
+_start:
+ popq %rdi
+ movq %rsp, %rsi
+ call __main
+
+.global __stack_chk_fail
+__stack_chk_fail:
+ ret