feat: lib seaHEADmain

1 files changed, 34 insertions, 0 deletions

diff --git a/sysroot/usr/include/sys/syscall.h b/sysroot/usr/include/sys/syscall.h
new file mode 100644
index 0000000..4a23a53
--- /dev/null
+++ b/sysroot/usr/include/sys/syscall.h
@@ -0,0 +1,34 @@
+#ifndef _SYS_SYSCALL_H
+#define _SYS_SYSCALL_H
+
+#define SYS_exit  0
+#define SYS_write 1
+#define SYS_read  2
+#define SYS_open  7
+#define SYS_close 8
+#define SYS_lseek 9
+#define SYS_brk   10
+#define SYS_sbrk  11
+
+static inline long __syscall1(long number, long a1)
+{
+    long result;
+    __asm__ volatile("int $0x80" : "=a"(result) : "a"(number), "D"(a1) : "memory");
+    return result;
+}
+
+static inline long __syscall2(long number, long a1, long a2)
+{
+    long result;
+    __asm__ volatile("int $0x80" : "=a"(result) : "a"(number), "D"(a1), "S"(a2) : "memory");
+    return result;
+}
+
+static inline long __syscall3(long number, long a1, long a2, long a3)
+{
+    long result;
+    __asm__ volatile("int $0x80" : "=a"(result) : "a"(number), "D"(a1), "S"(a2), "d"(a3) : "memory");
+    return result;
+}
+
+#endif