Initial creation of sourceware repositorygdb-4_18-branchpoint

2 files changed, 237 insertions, 0 deletions

diff --git a/gdb/config/fr30/fr30.mt b/gdb/config/fr30/fr30.mt
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+++ b/gdb/config/fr30/fr30.mt
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+# Target: Fujitsu FR30 processor
+TDEPFILES= fr30-tdep.o
+TM_FILE= tm-fr30.h
+SIM_OBS = remote-sim.o
+SIM = ../sim/fr30/libsim.a
diff --git a/gdb/config/fr30/tm-fr30.h b/gdb/config/fr30/tm-fr30.h
new file mode 100644
index 0000000..ea32792
--- /dev/null
+++ b/gdb/config/fr30/tm-fr30.h
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+/* Parameters for execution on a Fujitsu FR30 processor.
+
+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.  */
+
+#define FR30_GENREGS		16
+#define FR30_DEDICATEDREGS	8
+#define FR30_REGSIZE		4	/* bytes */
+
+#define NUM_REGS (FR30_GENREGS + FR30_DEDICATEDREGS)
+#define REGISTER_BYTES ((FR30_GENREGS + FR30_DEDICATEDREGS)*FR30_REGSIZE)
+
+/* Index within `registers' of the first byte of the space for
+   register N.  */
+#define REGISTER_BYTE(N) ((N) * FR30_REGSIZE)
+
+/* Initializer for an array of names of registers.
+   There should be NUM_REGS strings in this initializer.  */
+#define REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \
+  "r9", "r10", "r11", "r12", "r13", "r14", "r15", \
+  "pc", "ps", "tbr", "rp", "ssp", "usp", "mdh", "mdl" }
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
+#define FUNCTION_START_OFFSET 0
+
+/* Amount PC must be decremented by after a breakpoint.
+   This is often the number of bytes in BREAKPOINT
+   but not always.  */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* Stack grows downward.  */
+
+#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
+
+#define TARGET_BYTE_ORDER BIG_ENDIAN
+
+#define R0_REGNUM  0
+#define R1_REGNUM  1
+#define R2_REGNUM  2
+#define R3_REGNUM  3
+#define R4_REGNUM  4
+#define R5_REGNUM  5
+#define R6_REGNUM  6
+#define R7_REGNUM  7
+#define R8_REGNUM  8
+#define R9_REGNUM  9
+#define R10_REGNUM  10
+#define R11_REGNUM  11
+#define R12_REGNUM  12
+#define R13_REGNUM  13
+#define FP_REGNUM 14		/* Frame pointer */
+#define SP_REGNUM 15		/* Stack pointer */
+#define PC_REGNUM 16		/* Program counter */
+#define RP_REGNUM 19		/* Return pointer */
+
+#define FIRST_ARGREG	R4_REGNUM	/* first arg (or struct ret val addr) */
+#define LAST_ARGREG	R7_REGNUM	/* fourth (or third arg) */
+#define RETVAL_REG	R4_REGNUM	/* return vaue */
+
+/* Say how long (ordinary) registers are.  This is a piece of bogosity
+   used in push_word and a few other places; REGISTER_RAW_SIZE is the
+   real way to know how big a register is.  */
+#define REGISTER_SIZE FR30_REGSIZE
+
+/* Number of bytes of storage in the actual machine representation
+   for register N.  */
+#define REGISTER_RAW_SIZE(N) FR30_REGSIZE
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+#define MAX_REGISTER_RAW_SIZE FR30_REGSIZE 
+
+/* Number of bytes of storage in the program's representation
+   for register N.  */
+#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+#define MAX_REGISTER_VIRTUAL_SIZE FR30_REGSIZE
+
+extern void fr30_pop_frame PARAMS ((void));
+#define POP_FRAME fr30_pop_frame()
+
+#define USE_GENERIC_DUMMY_FRAMES
+#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 PUSH_RETURN_ADDRESS(PC, SP)  (write_register(RP_REGNUM, CALL_DUMMY_ADDRESS()), SP)
+#define PUSH_DUMMY_FRAME	generic_push_dummy_frame ()
+
+/* Number of bytes at start of arglist that are not really args.  */
+#define FRAME_ARGS_SKIP 0
+
+/* Return the GDB type object for the "standard" data type
+   of data in register N.  */
+#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
+
+/* Extract from an array REGBUF containing the (raw) register state
+   a function return value of type TYPE, and copy that, in virtual format,
+   into VALBUF.  */
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+    memcpy (VALBUF, REGBUF + REGISTER_BYTE(RETVAL_REG) +  \
+	(TYPE_LENGTH(TYPE) < 4 ? 4 - TYPE_LENGTH(TYPE) : 0), TYPE_LENGTH (TYPE))
+
+/* Extract from an array REGBUF containing the (raw) register state
+   the address in which a function should return its structure value,
+   as a CORE_ADDR (or an expression that can be used as one).  */
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
+  extract_address (REGBUF + REGISTER_BYTE (RETVAL_REG), \
+		   REGISTER_RAW_SIZE (RETVAL_REG))
+
+#define STORE_STRUCT_RETURN(ADDR, SP) \
+  { write_register (RETVAL_REG, (ADDR)); }
+
+#define FRAME_ARGS_ADDRESS(fi) (fi->frame)
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+
+/* Return number of args passed to a frame.
+   Can return -1, meaning no way to tell.  */
+#define FRAME_NUM_ARGS(numargs, fi) (numargs = -1)
+
+#ifdef __STDC__		/* Forward decls for prototypes */
+struct frame_info;
+struct frame_saved_regs;
+struct type;
+struct value;
+#endif
+
+#define EXTRA_FRAME_INFO \
+  struct frame_saved_regs fsr;  \
+  int framesize;		\
+  int frameoffset;		\
+  int framereg;
+
+extern CORE_ADDR fr30_frame_chain PARAMS ((struct frame_info *fi));
+#define FRAME_CHAIN(fi) fr30_frame_chain (fi)
+
+extern CORE_ADDR fr30_frame_saved_pc   PARAMS ((struct frame_info *));
+#define FRAME_SAVED_PC(fi) (fr30_frame_saved_pc (fi))
+
+#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
+
+extern CORE_ADDR fr30_skip_prologue PARAMS ((CORE_ADDR pc));
+#define SKIP_PROLOGUE(pc) pc = fr30_skip_prologue (pc)
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+    write_register_bytes (0, VALBUF, TYPE_LENGTH (TYPE))
+
+/* Put here the code to store, into a struct frame_saved_regs,
+   the addresses of the saved registers of frame described by FRAME_INFO.
+   This includes special registers such as pc and fp saved in special
+   ways in the stack frame.  sp is even more special:
+   the address we return for it IS the sp for the next frame.  */
+#define FRAME_FIND_SAVED_REGS(fi, regaddr) regaddr = fi->fsr
+
+/* Use INT #BREAKPOINT_INTNUM instruction for breakpoint */
+#define FR30_BREAKOP	0x1f	/* opcode, type D instruction */
+#define BREAKPOINT_INTNUM 9	/* one of the reserved traps */
+#define BREAKPOINT {FR30_BREAKOP, BREAKPOINT_INTNUM}
+
+/* Define this for Wingdb */
+#define TARGET_FR30
+
+/* IEEE format floating point */
+#define IEEE_FLOAT
+
+/* Define other aspects of the stack frame.  */
+
+/* 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.  */
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+{							\
+  CORE_ADDR func_start, after_prologue;			\
+  func_start = (get_pc_function_start ((FI)->pc) +	\
+		FUNCTION_START_OFFSET);			\
+  after_prologue = func_start;				\
+  SKIP_PROLOGUE (after_prologue);			\
+  (FRAMELESS) = (after_prologue == func_start);		\
+}
+
+extern void fr30_init_extra_frame_info PARAMS ((struct frame_info *fi));
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) fr30_init_extra_frame_info (fi)
+
+#define FRAME_CHAIN_VALID(FP, FI)	generic_frame_chain_valid (FP, FI)
+
+extern CORE_ADDR
+fr30_push_arguments PARAMS ((int nargs, struct value **args, CORE_ADDR sp,
+			     int struct_return,
+			     CORE_ADDR struct_addr));
+#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
+  (SP) = fr30_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
+
+#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP)
+
+/* Fujitsu's ABI requires all structs to be passed using a pointer.
+   That is obviously not very efficient, so I am leaving the definitions
+   to make gdb work with GCC style struct passing, in case we decide
+   to go for better performance, rather than for compatibility with
+   Fujitsu (just change STRUCT_ALWAYS_BY_ADDR to 0) */
+
+#define STRUCT_ALWAYS_BY_ADDR	1
+
+#if(STRUCT_ALWAYS_BY_ADDR)
+#define REG_STRUCT_HAS_ADDR(gcc_p,type)		1
+#else
+/* more standard GCC (optimized) */
+#define REG_STRUCT_HAS_ADDR(gcc_p,type)		\
+		((TYPE_LENGTH(type) > 4) && (TYPE_LENGTH(type) & 0x3))
+#endif
+/* alway return struct by value by input pointer */
+#define USE_STRUCT_CONVENTION(GCC_P, TYPE)	1