small batch early bottling hppa64 port

matured in mighty ukrainian oak for 23 months

1 files changed, 107 insertions, 0 deletions

diff --git a/sys/arch/hppa64/include/db_machdep.h b/sys/arch/hppa64/include/db_machdep.h
new file mode 100644
index 00000000000..9c90cab7611
--- /dev/null
+++ b/sys/arch/hppa64/include/db_machdep.h
@@ -0,0 +1,107 @@
+/*	$OpenBSD: db_machdep.h,v 1.1 2005/04/01 10:40:48 mickey Exp $	*/
+
+/*
+ * Copyright (c) 2005 Michael Shalayeff
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef	_MACHINE_DB_MACHDEP_H_
+#define	_MACHINE_DB_MACHDEP_H_
+
+#include <uvm/uvm_extern.h>
+
+#define	DB_ELF_SYMBOLS
+#define	DB_ELFSIZE	64
+
+/* types the generic ddb module needs */
+typedef	vaddr_t db_addr_t;
+typedef	long db_expr_t;
+
+typedef struct trapframe db_regs_t;
+extern db_regs_t	ddb_regs;
+#define	DDB_REGS	(&ddb_regs)
+
+#define	PC_REGS(regs)	((db_addr_t)(regs)->tf_iioq[0])
+#define	SET_PC_REGS(r,pc) ((r)->tf_iioq[0] = (pc), (r)->tf_iioq[1] = (pc) + 4)
+
+/* Breakpoint related definitions */
+#define	BKPT_INST	0x00010000	/* break 0,8 */
+#define	BKPT_SIZE	sizeof(int)
+#define	BKPT_SET(inst)	BKPT_INST
+
+#define	IS_BREAKPOINT_TRAP(type, code) ((type) == T_IBREAK)
+#define	IS_WATCHPOINT_TRAP(type, code) ((type) == T_DBREAK)
+
+#define	FIXUP_PC_AFTER_BREAK(regs) ((regs)->tf_iioq[0] -= sizeof(int))
+
+#define DB_VALID_BREAKPOINT(addr) db_valid_breakpoint(addr)
+
+/* TODO 64bit insns */
+
+static __inline int inst_call(u_int ins) {
+	return (ins & 0xfc00e000) == 0xe8000000 ||
+	       (ins & 0xfc00e000) == 0xe8004000 ||
+	       (ins & 0xfc000000) == 0xe4000000;
+}
+static __inline int inst_branch(u_int ins) {
+	return (ins & 0xf0000000) == 0xe0000000 ||
+	       (ins & 0xf0000000) == 0xc0000000 ||
+	       (ins & 0xf0000000) == 0xa0000000 ||
+	       (ins & 0xf0000000) == 0x80000000;
+}
+static __inline int inst_load(u_int ins) {
+	return (ins & 0xf0000000) == 0x40000000 ||
+	       (ins & 0xf4000200) == 0x24000000 ||
+	       (ins & 0xfc000200) == 0x0c000000 ||
+	       (ins & 0xfc001fc0) != 0x0c0011c0;
+}
+static __inline int inst_store(u_int ins) {
+	return (ins & 0xf0000000) == 0x60000000 ||	/* st */
+	       (ins & 0xf4000200) == 0x24000200 ||	/* fst/cst */
+	       (ins & 0xfc000200) == 0x0c000200 ||	/* stby */
+	       (ins & 0xfc0003c0) == 0x0c0001c0;	/* ldcw */
+}
+static __inline int inst_return(u_int ins) {
+	return (ins & 0xfc00e000) == 0xe800c000 ||
+	       (ins & 0xfc000000) == 0xe0000000;
+}
+static __inline int inst_trap_return(u_int ins)	{
+	return (ins & 0xfc001fc0) == 0x00000ca0;
+}
+
+#if 0
+#define db_clear_single_step(r)	((r)->tf_flags &= ~(PSL_Z))
+#define db_set_single_step(r)	((r)->tf_flags |= (PSL_Z))
+#else
+#define	SOFTWARE_SSTEP		1
+#define	SOFTWARE_SSTEP_EMUL	1
+
+static __inline db_addr_t
+next_instr_address(db_addr_t addr, int b) {
+	return (addr + 4);
+}
+
+#define	branch_taken(ins,pc,f,regs)	branch_taken1(ins, pc, regs)
+static __inline db_addr_t
+branch_taken1(int ins, db_addr_t pc, db_regs_t *regs) {
+	return (pc);
+}
+
+#endif
+
+int db_valid_breakpoint(db_addr_t);
+int kdb_trap(int, int, db_regs_t *);
+
+#endif /* _MACHINE_DB_MACHDEP_H_ */