patch-2.4.19 linux-2.4.19/include/asm-mips64/exception.h

• Lines: 77
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-mips64/exception.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-mips64/exception.h linux-2.4.19/include/asm-mips64/exception.h
@@ -0,0 +1,76 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1994 - 1999 by Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics
+ *
+ * Low level exception handling
+ */
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/fpregdef.h>
+#include <asm/mipsregs.h>
+#include <asm/stackframe.h>
+
+	.macro	__build_clear_none
+	.endm
+
+	.macro	__build_clear_sti
+	STI
+	.endm
+
+	.macro	__build_clear_cli
+	CLI
+	.endm
+
+	.macro	__build_clear_fpe
+	cfc1	a1, fcr31
+	li	a2, ~(0x3f << 12)
+	and	a2, a1
+	ctc1	a2, fcr31
+	STI
+	.endm
+
+	.macro	__build_clear_ade
+	dmfc0	t0, CP0_BADVADDR
+	sd	t0, PT_BVADDR(sp)
+	KMODE
+	.endm
+
+	.macro	__BUILD_silent exception
+	.endm
+
+	/* Gas tries to parse the PRINT argument as a string containing
+	   string escapes and emits bogus warnings if it believes to
+	   recognize an unknown escape code.  So make the arguments
+	   start with an n and gas will believe \n is ok ...  */
+	.macro	__BUILD_verbose	nexception
+	ld	a1, PT_EPC(sp)
+	PRINT("Got \nexception at %016lx\012")
+	.endm
+
+	.macro	__BUILD_count exception
+	.set	reorder
+	ld	t0,exception_count_\exception
+	daddiu	t0, 1
+	sd	t0,exception_count_\exception
+	.set	noreorder
+	.comm	exception_count\exception, 8, 8
+	.endm
+
+	.macro	BUILD_HANDLER exception handler clear verbose
+	.align	5
+	NESTED(handle_\exception, PT_SIZE, sp)
+	.set	noat
+	SAVE_ALL
+	__BUILD_clear_\clear
+	.set	at
+	__BUILD_\verbose \exception
+	move	a0, sp
+	jal	do_\handler
+	j	ret_from_sys_call
+	 nop
+	END(handle_\exception)
+	.endm