* tm-ultra.h: New file, for use on Ultra3 Unix as well as for

remote debugging of Ultra3 kernel.  Includes tm-29k.h and
overrides various things.

1 files changed, 226 insertions, 0 deletions

diff --git a/gdb/tm-ultra3.h b/gdb/tm-ultra3.h
new file mode 100644
index 0000000..2b60f90
--- /dev/null
+++ b/gdb/tm-ultra3.h
@@ -0,0 +1,226 @@
+/* Parameters for NYU Ultracomputer 29000 target, for GDB, the GNU debugger.
+   Copyright 1990, 1991 Free Software Foundation, Inc.
+   Contributed by David Wood @ New York University (wood@nyu.edu). 
+   
+This file is part of GDB.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* This file includes tm-29k.h, but predefines REGISTER_NAMES and
+   related macros.  The file supports a 29k running our flavor of
+   Unix on our Ultra3 PE Boards.  */
+
+/* Byte order is configurable, but this machine runs big-endian.  */
+#define TARGET_BYTE_ORDER BIG_ENDIAN
+
+/* Initializer for an array of names of registers.
+   There should be NUM_REGS strings in this initializer.
+ */
+#define NUM_REGS   (EXO_REGNUM + 1)	
+
+#define REGISTER_NAMES { 						 \
+ "gr1",									 \
+ "gr64", "gr65", "gr66", "gr67", "gr68", "gr69", "gr70", "gr71", "gr72", \
+ "gr73", "gr74", "gr75", "gr76", "gr77", "gr78", "gr79", "gr80", "gr81", \
+ "gr82", "gr83", "gr84", "gr85", "gr86", "gr87", "gr88", "gr89", "gr90", \
+ "gr91", "gr92", "gr93", "gr94", "gr95",				 \
+ "gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \
+ "gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \
+ "gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \
+ "gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127",		 \
+ "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9",   \
+ "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \
+ "lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \
+ "lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \
+ "lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \
+ "lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \
+ "lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \
+ "lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \
+ "lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \
+ "lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \
+ "lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \
+ "lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \
+ "lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \
+ "lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \
+ "lr124", "lr125", "lr126", "lr127",					 \
+ "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr",	 \
+ "pc0", "pc1", "pc2", "mmu", "lru",					 \
+ "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr",			 \
+ "fpe", "int", "fps", "exo" }
+
+
+#ifdef KERNEL_DEBUGGING
+# define	PADDR_U_REGNUM	22		/* gr86 */
+# define	RETURN_REGNUM	GR64_REGNUM	
+#else
+# define	RETURN_REGNUM	GR96_REGNUM	
+#endif	/* KERNEL_DEBUGGING */
+
+
+/* Should rename all GR96_REGNUM to RETURN_REGNUM */ 
+#define GR1_REGNUM 	(0)
+#define GR64_REGNUM	1
+#define GR96_REGNUM 	(GR64_REGNUM + 32)
+/* This needs to be the memory stack pointer, not the register stack pointer,
+   to make call_function work right.  */
+#define SP_REGNUM 	MSP_REGNUM
+
+#define FP_REGNUM 	(LR0_REGNUM + 1)	/* lr1 */
+/* Large Return Pointer  */
+#define LRP_REGNUM (123 - 96 + RETURN_REGNUM)
+/* Static link pointer   */
+#define SLP_REGNUM (124 - 96 + RETURN_REGNUM)
+/* Memory Stack Pointer.  */
+#define MSP_REGNUM (125 - 96 + RETURN_REGNUM)
+/* Register allocate bound.  */
+#define RAB_REGNUM (126 - 96 + RETURN_REGNUM)
+/* Register Free Bound.  */
+#define RFB_REGNUM (127 - 96 + RETURN_REGNUM)
+/* Register Stack Pointer.  */
+#define RSP_REGNUM GR1_REGNUM
+#define LR0_REGNUM ( 32 +  GR96_REGNUM) 
+
+/* Protected Special registers */
+#define VAB_REGNUM (LR0_REGNUM +  128)
+#define OPS_REGNUM (VAB_REGNUM + 1)  
+#define CPS_REGNUM (VAB_REGNUM + 2)  
+#define CFG_REGNUM (VAB_REGNUM + 3)  
+#define CHA_REGNUM (VAB_REGNUM + 4)  
+#define CHD_REGNUM (VAB_REGNUM + 5)  
+#define CHC_REGNUM (VAB_REGNUM + 6)  
+#define RBP_REGNUM (VAB_REGNUM + 7)  
+#define TMC_REGNUM (VAB_REGNUM + 8)  
+#define TMR_REGNUM (VAB_REGNUM + 9)  
+#define NPC_REGNUM (VAB_REGNUM + 10)	/* pc0 */
+#define PC_REGNUM  (VAB_REGNUM + 11)  	/* pc1 */
+#define PC2_REGNUM (VAB_REGNUM + 12)  	/* pc2 */
+#define MMU_REGNUM (VAB_REGNUM + 13)
+#define LRU_REGNUM (VAB_REGNUM + 14)
+	/* Register sequence gap */
+/* Unprotected Special registers */
+#define IPC_REGNUM (LRU_REGNUM + 1) 
+#define IPA_REGNUM (IPC_REGNUM + 1) 
+#define IPB_REGNUM (IPC_REGNUM + 2) 
+#define Q_REGNUM   (IPC_REGNUM + 3) 
+#define ALU_REGNUM (IPC_REGNUM + 4) 
+#define PS_REGNUM  ALU_REGNUM
+#define BP_REGNUM  (IPC_REGNUM + 5) 
+#define FC_REGNUM  (IPC_REGNUM + 6) 
+#define CR_REGNUM  (IPC_REGNUM + 7) 
+	/* Register sequence gap */
+#define FPE_REGNUM (CR_REGNUM  + 1) 
+#define INT_REGNUM (FPE_REGNUM + 1) 
+#define FPS_REGNUM (FPE_REGNUM + 2) 
+	/* Register sequence gap */
+#define EXO_REGNUM (FPS_REGNUM + 1) 
+
+/* Special register #x.  */
+#define SR_REGNUM(x) \
+  ((x) < 15  ? VAB_REGNUM + (x)					 \
+   : (x) >= 128 && (x) < 136 ? IPC_REGNUM + (x-128)		 \
+   : (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x-160)		 \
+   : (x) == 164 ? EXO_REGNUM                                     \
+   : (error ("Internal error in SR_REGNUM"), 0))
+
+#ifndef KERNEL_DEBUGGING
+/*
+ * This macro defines the register numbers (from REGISTER_NAMES) that
+ * are effectively unavailable to the user through ptrace().  It allows 
+ * us to include the whole register set in REGISTER_NAMES (inorder to 
+ * better support remote debugging).  If it is used in 
+ * fetch/store_inferior_registers() gdb will not complain about I/O errors 
+ * on fetching these registers.  If all registers in REGISTER_NAMES
+ * are available, then return false (0).
+ */
+#define CANNOT_STORE_REGISTER(regno)		\
+                  (((regno)>=GR64_REGNUM && (regno)<GR64_REGNUM+32) ||	\
+                   ((regno)==VAB_REGNUM) ||	\
+		   ((regno)==OPS_REGNUM) ||	\
+                   ((regno)>=CFG_REGNUM && (regno)<=TMR_REGNUM)     ||	\
+                   ((regno)==MMU_REGNUM) ||	\
+		   ((regno)==LRU_REGNUM) ||	\
+                   ((regno)>=ALU_REGNUM) ||	\
+                   ((regno)==CR_REGNUM)  ||	\
+		   ((regno)==EXO_REGNUM))
+#define CANNOT_FETCH_REGISTER(regno)	CANNOT_STORE_REGISTER(regno)
+#endif /* KERNEL_DEBUGGING */
+
+/*
+ * Converts an sdb register number to an internal gdb register number.
+ * Currently under gcc, gr96->0...gr128->31...lr0->32...lr127->159, or...
+ * 		  	gr64->0...gr95->31, lr0->32...lr127->159.
+ */
+#define SDB_REG_TO_REGNUM(value) (((value)<32) ? ((value)+RETURN_REGNUM) : \
+		 		                 ((value)-32+LR0_REGNUM))
+
+#ifdef KERNEL_DEBUGGING
+  /* ublock virtual address as defined in our sys/param.h */
+  /* FIXME: Should get this from sys/param.h */
+# define UVADDR	((32*0x100000)-8192)    
+#endif
+
+/*
+ * Are we in sigtramp(), needed in infrun.c.  Specific to ultra3, because
+ * we take off the leading '_'.
+ */
+#if !defined(KERNEL_DEBUGGING)
+#ifdef SYM1
+# define IN_SIGTRAMP(pc, name) name && !strcmp ("sigtramp", name)
+#else
+        Need to define IN_SIGTRAMP() for sym2.
+#endif
+#endif /* !KERNEL_DEBUGGING */
+
+#include "tm-29k.h"
+
+/**** The following are definitions that override those in tm-29k.h ****/
+
+/* This sequence of words is the instructions
+   mtsrim cr, 15
+   loadm 0, 0, lr2, msp     ; load first 16 words of arguments into registers
+   add msp, msp, 16 * 4     ; point to the remaining arguments
+  CONST_INSN:
+   const gr96,inf
+   consth gr96,inf
+   calli lr0, gr96
+   aseq 0x40,gr1,gr1   ; nop
+   asneq 0x50,gr1,gr1  ; breakpoint
+   When KERNEL_DEBUGGIN is defined, msp -> gr93, gr96 -> gr64,
+                                    7d  -> 5d,    60  -> 40
+   */
+
+/* Position of the "const" instruction within CALL_DUMMY in bytes.  */
+#undef CALL_DUMMY
+#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
+#ifdef KERNEL_DEBUGGING /* gr96 -> gr64 */
+#  define CALL_DUMMY {0x0400870f, 0x3600825d, 0x155d5d40, 0x03ff40ff,    \
+                    0x02ff40ff, 0xc8008040, 0x70400101, 0x72500101}
+#else
+#  define CALL_DUMMY {0x0400870f, 0x3600827d, 0x157d7d40, 0x03ff60ff,    \
+                    0x02ff60ff, 0xc8008060, 0x70400101, 0x72500101}
+#endif /* KERNEL_DEBUGGING */
+#else /* Byte order differs.  */
+  you lose
+#endif /* Byte order differs.  */
+
+#if !defined(KERNEL_DEBUGGING)
+# ifdef SYM1
+#  undef  DECR_PC_AFTER_BREAK
+#  define DECR_PC_AFTER_BREAK 0	/* Sym1 kernel does the decrement */
+# else
+    ->"ULTRA3 running other than sym1 OS"!;
+# endif
+#endif /* !KERNEL_DEBUGGING */
+