1 files changed, 91 insertions, 0 deletions
diff --git a/libgloss/sparc_leon/crt0.S b/libgloss/sparc_leon/crt0.S
new file mode 100644
index 000000000..7a20a414d
--- /dev/null
+++ b/libgloss/sparc_leon/crt0.S
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2011 Aeroflex Gaisler
+ *
+ * BSD license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+	.text
+	.global _start, main, _end
+
+_start:
+
+#ifndef _FLAT
+	save	%sp, -64, %sp
+#else
+	add	%sp, -72, %sp
+	st	%o7, [%sp+64]
+#endif
+        /* clear the bss */
+ 
+        sethi %hi(__bss_start),%g2
+        or    %g2,%lo(__bss_start),%g2  ! g2 = start of bss
+        sethi %hi(_end),%g3
+        or    %g3,%lo(_end),%g3         ! g3 = end of bss
+        mov   %g0,%g1                   ! so std has two zeros
+	sub   %g3, %g2, %g3
+zerobss:
+	subcc  %g3, 8, %g3
+	bge,a   zerobss
+	std    %g0,[%g2+%g3]
+
+	set    _end, %o0
+	st     %g0,[%o0]
+
+	call	bdinit2
+	 nop
+
+	call	prelibchook
+	 nop
+
+	call	_call_initcalls        /* atexit uses __atexit lock */
+	 nop
+	
+	set	_fini, %o0
+	call	atexit, 1
+	 nop
+	
+	call	_init
+	 nop
+        
+	call    main
+         nop
+	call _exit
+	nop
+#ifndef _FLAT
+	ret
+	restore
+#else
+	ld	[%sp+64], %o7
+	retl
+	add	%sp, 72, %sp
+#endif
+
+        .seg    "data"
+        .global .bdata
+.bdata:
+        .align  8
+        .global _environ
+_environ:
+        .word   1
+ 
+
+