SPARC: Added generic support for SPARC architecture.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>

1 files changed, 162 insertions, 0 deletions

diff --git a/include/asm-sparc/stack.h b/include/asm-sparc/stack.h
new file mode 100644
index 0000000..b40a9f3
--- /dev/null
+++ b/include/asm-sparc/stack.h
@@ -0,0 +1,162 @@
+/* SPARC stack layout Macros and structures,
+ * mainly taken from BCC (the Bare C compiler for
+ * SPARC LEON2/3) sources.
+ *
+ * (C) Copyright 2007
+ * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#ifndef __SPARC_STACK_H__
+#define __SPARC_STACK_H__
+
+#include <asm/ptrace.h>
+
+#ifndef __ASSEMBLER__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define PT_REGS_SZ   sizeof(struct pt_regs)
+
+/* A Sparc stack frame */
+	struct sparc_stackframe_regs {
+		unsigned long sf_locals[8];
+		unsigned long sf_ins[6];
+		struct sparc_stackframe_regs *sf_fp;
+		unsigned long sf_callers_pc;
+		char *sf_structptr;
+		unsigned long sf_xargs[6];
+		unsigned long sf_xxargs[1];
+	};
+#define SF_REGS_SZ sizeof(struct sparc_stackframe_regs)
+
+/* A register window */
+	struct sparc_regwindow_regs {
+		unsigned long locals[8];
+		unsigned long ins[8];
+	};
+#define RW_REGS_SZ sizeof(struct sparc_regwindow_regs)
+
+/* A fpu window */
+	struct sparc_fpuwindow_regs {
+		unsigned long locals[32];
+		unsigned long fsr;
+		unsigned long lastctx;
+	};
+#define FW_REGS_SZ sizeof(struct sparc_fpuwindow_regs)
+
+#ifdef __cplusplus
+}
+#endif
+#else
+#define PT_REGS_SZ	0x50	/* 20*4 */
+#define SF_REGS_SZ	0x60	/* 24*4 */
+#define RW_REGS_SZ	0x20	/* 16*4 */
+#define FW_REGS_SZ	0x88	/* 34*4 */
+#endif				/* !ASM */
+
+/* These are for pt_regs. */
+#define PT_PSR		0x0
+#define PT_PC		0x4
+#define PT_NPC		0x8
+#define PT_Y		0xc
+#define PT_G0		0x10
+#define PT_WIM		PT_G0
+#define PT_G1		0x14
+#define PT_G2		0x18
+#define PT_G3		0x1c
+#define PT_G4		0x20
+#define PT_G5		0x24
+#define PT_G6		0x28
+#define PT_G7		0x2c
+#define PT_I0		0x30
+#define PT_I1		0x34
+#define PT_I2		0x38
+#define PT_I3		0x3c
+#define PT_I4		0x40
+#define PT_I5		0x44
+#define PT_I6		0x48
+#define PT_FP		PT_I6
+#define PT_I7		0x4c
+
+/* Stack_frame offsets */
+#define SF_L0		0x00
+#define SF_L1		0x04
+#define SF_L2		0x08
+#define SF_L3		0x0c
+#define SF_L4		0x10
+#define SF_L5		0x14
+#define SF_L6		0x18
+#define SF_L7		0x1c
+#define SF_I0		0x20
+#define SF_I1		0x24
+#define SF_I2		0x28
+#define SF_I3		0x2c
+#define SF_I4		0x30
+#define SF_I5		0x34
+#define SF_FP		0x38
+#define SF_PC		0x3c
+#define SF_RETP		0x40
+#define SF_XARG0	0x44
+#define	SF_XARG1	0x48
+#define	SF_XARG2	0x4c
+#define	SF_XARG3	0x50
+#define	SF_XARG4	0x54
+#define	SF_XARG5	0x58
+#define	SF_XXARG	0x5c
+
+/* Reg_window offsets */
+#define RW_L0		0x00
+#define RW_L1		0x04
+#define RW_L2		0x08
+#define RW_L3		0x0c
+#define RW_L4		0x10
+#define RW_L5		0x14
+#define RW_L6		0x18
+#define RW_L7		0x1c
+#define RW_I0		0x20
+#define RW_I1		0x24
+#define RW_I2		0x28
+#define RW_I3		0x2c
+#define RW_I4		0x30
+#define RW_I5		0x34
+#define RW_I6		0x38
+#define RW_I7		0x3c
+
+/* Fpu_window offsets */
+#define FW_F0		0x00
+#define FW_F2		0x08
+#define FW_F4		0x10
+#define FW_F6		0x18
+#define FW_F8		0x20
+#define FW_F10		0x28
+#define FW_F12		0x30
+#define FW_F14		0x38
+#define FW_F16		0x40
+#define FW_F18		0x48
+#define FW_F20		0x50
+#define FW_F22		0x58
+#define FW_F24		0x60
+#define FW_F26		0x68
+#define FW_F28		0x70
+#define FW_F30		0x78
+#define FW_FSR		0x80
+
+#endif