scc

commit 8f703c5646e41a78a2b3ae9d305e479f765ae43c
parent 10179858ebe703a0245279a17c08f97109510f45
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Tue,  7 Mar 2017 08:43:56 +0100

[libc-amd64-linux] Add syscall script

Diffstat:
A
libc/src/sys/amd64-linux/Makefile
 | 
14
++++++++++++++
A
libc/src/sys/amd64-linux/syscall.awk
 | 
4
++++
A
libc/src/sys/amd64-linux/syscall.lst
 | 
8
++++++++

3 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/libc/src/sys/amd64-linux/Makefile b/libc/src/sys/amd64-linux/Makefile
@@ -0,0 +1,14 @@
+
+OBJ = _brk.o _close.o _exit.o _lseek.o _open.o _read.o _write.o
+SRC = $(OBJ:.o=.s)
+
+all: $(OBJ)
+
+.s.o:
+	$(AS) $< -o $@
+
+$(SRC):
+	awk -f syscall.awk < syscall.lst
+
+clean:
+	rm -f *.s *.o
diff --git a/libc/src/sys/amd64-linux/syscall.awk b/libc/src/sys/amd64-linux/syscall.awk
@@ -0,0 +1,4 @@
+/^#/	{next}
+	{name=$2 ".s"
+	 printf "%s:\n\tmov\t%d,%%rax\n\tsyscall\n\tret\n",$2, $1 > name
+	 close(name)}
diff --git a/libc/src/sys/amd64-linux/syscall.lst b/libc/src/sys/amd64-linux/syscall.lst
@@ -0,0 +1,8 @@
+#number	#name
+0	_read
+1	_write
+2	_open
+3	_close
+3	_lseek
+12	_brk
+60	_exit