From c5fcf7179a83ef65c86c6a4a390029149e518649 Mon Sep 17 00:00:00 2001
From: Franciszek Malinka <franciszek.malinka@gmail.com>
Date: Tue, 5 Oct 2021 21:49:54 +0200
Subject: Duzy commit ze smieciami

---
 semestr-4/ask/lista9/gadget.s | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 semestr-4/ask/lista9/gadget.s

(limited to 'semestr-4/ask/lista9/gadget.s')

diff --git a/semestr-4/ask/lista9/gadget.s b/semestr-4/ask/lista9/gadget.s
new file mode 100644
index 0000000..6d60a63
--- /dev/null
+++ b/semestr-4/ask/lista9/gadget.s
@@ -0,0 +1,16 @@
+        .global gadget
+
+        .text
+
+# rax: 0x3c
+# rdi: 0
+# rdx: {NULL, ...}
+# rsi: path + '\n'
+gadget:
+        dec     %rax            # rax: 0x3c -> 0x3b (sys_execve)
+        mov     %rdx, %rsi      # rsi: argv = {NULL}
+        mov     %rdi, %rdx      # rdx: envp = NULL
+        lea     16(%rsp),%rdi   # rdi: path
+        ret
+
+# vim: ft=gas
-- 
cgit v1.2.3