import gdb-1999-08-09 snapshot

3 files changed, 188 insertions, 7 deletions

diff --git a/gdb/config/arm/tm-arm.h b/gdb/config/arm/tm-arm.h
index 8a3553f..4fbeafd 100644
--- a/gdb/config/arm/tm-arm.h
+++ b/gdb/config/arm/tm-arm.h
@@ -290,8 +290,10 @@ extern use_struct_convention_fn arm_use_struct_convention;
   int frameoffset;		\
   int framereg;
 
-extern void arm_init_extra_frame_info PARAMS ((struct frame_info * fi));
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) arm_init_extra_frame_info (fi)
+extern void arm_init_extra_frame_info PARAMS ((int fromleaf,
+					       struct frame_info *fi));
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
+  arm_init_extra_frame_info (fromleaf, fi)
 
 /* Return the frame address.  On ARM, it is R11; on Thumb it is R7.  */
 CORE_ADDR arm_target_read_fp PARAMS ((void));
@@ -314,11 +316,25 @@ extern int arm_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
 
 /* Define other aspects of the stack frame.  */
 
-/* An expression that tells us whether the function invocation represented
-   by FI does not have a frame on the stack associated with it. */
-extern int arm_frameless_function_invocation PARAMS ((struct frame_info * frame));
-#define FRAMELESS_FUNCTION_INVOCATION(FI) (arm_frameless_function_invocation (FI))
-
+/* A macro that tells us whether the function invocation represented
+   by FI does not have a frame on the stack associated with it.  If it
+   does not, FRAMELESS is set to 1, else 0.
+
+   Sometimes we have functions that do a little setup (like saving the vN
+   registers with the stmdb instruction, but DO NOT set up a frame.
+   The symbol table will report this as a prologue.  However, it is
+   important not to try to parse these partial frames as frames, or we 
+   will get really confused.
+
+   So I will demand 3 instructions between the start & end of the prologue
+   before I call it a real prologue, i.e. at least
+         mov ip, sp,
+	 stmdb sp!, {}
+	 sub sp, ip, #4. */
+
+#define FRAMELESS_FUNCTION_INVOCATION(FI) \
+(arm_frameless_function_invocation (FI))
+     
 /* Saved Pc.  */
 
 #define FRAME_SAVED_PC(FRAME)	arm_frame_saved_pc (FRAME)
diff --git a/gdb/config/mcore/mcore.mt b/gdb/config/mcore/mcore.mt
new file mode 100644
index 0000000..ed9a923
--- /dev/null
+++ b/gdb/config/mcore/mcore.mt
@@ -0,0 +1,5 @@
+# Target: Motorola MCore processor
+TDEPFILES= mcore-tdep.o  mcore-rom.o monitor.o dsrec.o
+TM_FILE= tm-mcore.h
+SIM_OBS = remote-sim.o
+SIM = ../sim/mcore/libsim.a
diff --git a/gdb/config/mcore/tm-mcore.h b/gdb/config/mcore/tm-mcore.h
new file mode 100644
index 0000000..aab7b74
--- /dev/null
+++ b/gdb/config/mcore/tm-mcore.h
@@ -0,0 +1,160 @@
+/* Parameters for execution on a Motorola MCore.
+   Copyright (C) 1995 Free Software Foundation, Inc.
+
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA. */
+
+/* The mcore is big endian */
+#define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN
+
+/* All registers are 32 bits */
+#define REGISTER_SIZE 4
+#define MAX_REGISTER_RAW_SIZE 4
+
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+
+#define REGISTER_BYTE(REG) ((REG) * REGISTER_SIZE)
+#define REGISTER_VIRTUAL_SIZE(REG) 4
+#define REGISTER_RAW_SIZE(REG) 4
+
+#define MAX_REGISTER_VIRTUAL_SIZE 4
+
+#define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
+
+extern char *mcore_register_names[];
+#define REGISTER_NAME(I) mcore_register_names[I]
+
+/* Registers. The Motorola MCore contains:
+
+   16 32-bit general purpose registers (r0-r15)
+   16 32-bit alternate file registers (ar0-ar15)
+   32 32-bit control registers (cr0-cr31)
+   + 1 pc
+   ------
+   65 registers */
+#define NUM_REGS 65
+#define PC_REGNUM 64
+#define SP_REGNUM 0
+#define FP_REGNUM (SP_REGNUM)
+#define PR_REGNUM 15
+#define FIRST_ARGREG 2
+#define LAST_ARGREG 7
+#define RETVAL_REGNUM 2
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
+#define FUNCTION_START_OFFSET 0
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* BREAKPOINT_FROM_PC uses the program counter value to determine
+   the breakpoint that should be used. */
+extern breakpoint_from_pc_fn mcore_breakpoint_from_pc;
+#define BREAKPOINT_FROM_PC(PCPTR, LENPTR) mcore_breakpoint_from_pc (PCPTR, LENPTR)
+
+#define INNER_THAN(LHS,RHS) ((LHS) < (RHS))
+
+#define SAVED_PC_AFTER_CALL(FRAME)  read_register (PR_REGNUM)
+
+struct frame_info;
+struct type;
+struct value;
+
+extern void mcore_init_extra_frame_info (struct frame_info *fi);
+#define INIT_EXTRA_FRAME_INFO(FROMLEAF, FI) mcore_init_extra_frame_info ((FI))
+#define INIT_FRAME_PC		/* Not necessary */
+#define FRAME_INIT_SAVED_REGS(FI)	/* handled by init_extra_frame_info */
+
+extern CORE_ADDR mcore_frame_chain (struct frame_info *fi);
+#define FRAME_CHAIN(FI) mcore_frame_chain ((FI))
+#define FRAME_CHAIN_VALID(FP, FI) generic_frame_chain_valid ((FP), (FI))
+
+extern CORE_ADDR mcore_frame_saved_pc (struct frame_info *);
+#define FRAME_SAVED_PC(FI) (mcore_frame_saved_pc ((FI)))
+
+/* Extracting/storing return values. */
+extern void mcore_store_return_value (struct type *type, char *valbuf);
+#define STORE_RETURN_VALUE(TYPE, VALBUF) mcore_store_return_value ((TYPE), (VALBUF))
+
+extern void mcore_extract_return_value (struct type *type, char *regbut, char *valbuf);
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+    mcore_extract_return_value ((TYPE), (REGBUF), (VALBUF));
+
+#define STORE_STRUCT_RETURN(ADDR, SP)	/* handled by mcore_push_arguments */
+
+extern CORE_ADDR mcore_extract_struct_value_address (char *regbuf);
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+    mcore_extract_struct_value_address (REGBUF)
+
+extern CORE_ADDR mcore_skip_prologue (CORE_ADDR pc);
+#define SKIP_PROLOGUE(PC) (PC) = mcore_skip_prologue ((PC))
+
+#define FRAME_ARGS_SKIP 0
+extern CORE_ADDR mcore_frame_args_address (struct frame_info *fi);
+#define FRAME_ARGS_ADDRESS(FI) mcore_frame_args_address ((FI))
+extern CORE_ADDR mcore_frame_locals_address (struct frame_info *fi);
+#define FRAME_LOCALS_ADDRESS(FI) mcore_frame_locals_address ((FI))
+#define FRAME_NUM_ARGS(FI) (-1)
+
+
+extern void mcore_pop_frame (struct frame_info *fi);
+#define POP_FRAME mcore_pop_frame (get_current_frame ())
+
+#define USE_GENERIC_DUMMY_FRAMES 1
+#define CALL_DUMMY                   {0}
+#define CALL_DUMMY_START_OFFSET      (0)
+#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
+#define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
+#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
+#define CALL_DUMMY_ADDRESS()         entry_point_address ()
+#define SIZEOF_CALL_DUMMY_WORDS      0
+
+extern CORE_ADDR mcore_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
+#define PUSH_RETURN_ADDRESS(PC, SP)  mcore_push_return_address (PC, SP)
+
+#define PUSH_DUMMY_FRAME	generic_push_dummy_frame ()
+
+extern CORE_ADDR mcore_push_arguments PARAMS ((int, struct value **, CORE_ADDR,
+					       unsigned char, CORE_ADDR));
+#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
+  (SP) = mcore_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
+
+#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
+
+/* MCore will never pass a sturcture by reference. It will always be split
+   between registers and stack. */
+#define REG_STRUCT_HAS_ADDR(GCC_P, TYPE) 0
+
+extern use_struct_convention_fn mcore_use_struct_convention;
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE) mcore_use_struct_convention (GCC_P, TYPE)
+
+/* override the default get_saved_register function with
+   one that takes account of generic CALL_DUMMY frames */
+#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
+    generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
+
+/* Cons up virtual frame pointer for trace */
+extern void mcore_virtual_frame_pointer PARAMS ((CORE_ADDR, long *, long *));
+#define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
+	mcore_virtual_frame_pointer ((PC), (REGP), (OFFP))
+
+/* MCore can be bi-endian. */
+#define TARGET_BYTE_ORDER_SELECTABLE_P 1
+
+/* For PE, gcc will tell us what th real type of
+   arguments are when it promotes arguments. */
+#define BELIEVE_PCC_PROMOTION 1