date and time created 92/03/09 14:07:52 by bostic

SCCS-vsn: lib/csu/mips/crt0.s 5.1

diff --git a/usr/src/lib/csu/mips/crt0.s b/usr/src/lib/csu/mips/crt0.s
new file mode 100644 (file)
index 0000000..268bab8
--- /dev/null
+++ b/usr/src/lib/csu/mips/crt0.s
@@ -0,0 +1,44 @@
+#!/bin/sh -
+#
+# Copyright (c) 1991 The Regents of the University of California.
+# All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Ralph Campbell.
+#
+# %sccs.include.redist.sh%
+#
+#      @(#)crt0.s      5.1 (Berkeley) %G%
+#
+
+#include <machine/regdef.h>
+#include "../libc/mips/DEFS.h"
+
+       .comm   environ, 4
+
+NON_LEAF(__start, 24, ra)
+       li      v0, 45          # illegal ULTRIX system call to switch to BSD
+       syscall                 #   system call numbers.
+       lw      a0, 0(sp)       # get argc from stack
+       la      gp, _gp         # init gp pointer
+       addu    a1, sp, 4       # get pointer to argv
+       addu    a2, a1, 4       # skip null pointer on stack
+       sll     v0, a0, 2       # add number of argv pointers
+       addu    a2, a2, v0      # final pointer to environment list
+       sw      a2, environ     # save environment pointer
+       subu    sp, sp, 24      # allocate standard frame
+       .mask   0x80000000, -4
+       sw      zero, 20(sp)    # clear return address for debugging
+       jal     main            # v0 = main(argc, argv, env);
+       move    a0, v0
+       jal     exit            # exit(v0);
+       break   0
+END(__start)
+
+LEAF(moncontrol)
+       j       ra
+END(moncontrol)
+
+LEAF(_mcount)
+       j       ra
+END(_mcount)