Subversion Repositories openrisc_2011-10-31

/crti.asm

/moxie.md

/sfp-machine.h

sfp-machine.h Property changes : Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: t-moxie-softfp =================================================================== --- t-moxie-softfp (nonexistent) +++ t-moxie-softfp (revision 338) @@ -0,0 +1,9 @@ +softfp_float_modes := sf df +softfp_int_modes := si di +softfp_extensions := sfdf +softfp_truncations := dfsf +softfp_machine_header := moxie/sfp-machine.h +softfp_exclude_libgcc2 := y + +# softfp seems to be missing a whole bunch of prototypes. +TARGET_LIBGCC2_CFLAGS += -Wno-missing-prototypes Index: moxie.c =================================================================== --- moxie.c (nonexistent) +++ moxie.c (revision 338) @@ -0,0 +1,547 @@ +/* Target Code for moxie + Copyright (C) 2008, 2009, 2010 Free Software Foundation + Contributed by Anthony Green. + + This file is part of GCC. + + GCC 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 3, or (at your + option) any later version. + + GCC 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 GCC; see the file COPYING3. If not see + . */ + +#include "config.h" +#include "system.h" +#include "coretypes.h" +#include "tm.h" +#include "rtl.h" +#include "regs.h" +#include "hard-reg-set.h" +#include "real.h" +#include "insn-config.h" +#include "conditions.h" +#include "insn-flags.h" +#include "output.h" +#include "insn-attr.h" +#include "flags.h" +#include "recog.h" +#include "reload.h" +#include "toplev.h" +#include "obstack.h" +#include "tree.h" +#include "expr.h" +#include "optabs.h" +#include "except.h" +#include "function.h" +#include "ggc.h" +#include "target.h" +#include "target-def.h" +#include "tm_p.h" +#include "langhooks.h" +#include "df.h" + +#define LOSE_AND_RETURN(msgid, x) \ + do \ + { \ + moxie_operand_lossage (msgid, x); \ + return; \ + } while (0) + +/* Worker function for TARGET_RETURN_IN_MEMORY. */ + +static bool +moxie_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) +{ + const HOST_WIDE_INT size = int_size_in_bytes (type); + return (size == -1 || size > 2 * UNITS_PER_WORD); +} + +/* Define how to find the value returned by a function. + VALTYPE is the data type of the value (as a tree). + If the precise function being called is known, FUNC is its + FUNCTION_DECL; otherwise, FUNC is 0. + + We always return values in register $r0 for moxie. */ + +rtx +moxie_function_value (const_tree valtype, + const_tree fntype_or_decl ATTRIBUTE_UNUSED, + bool outgoing ATTRIBUTE_UNUSED) +{ + return gen_rtx_REG (TYPE_MODE (valtype), MOXIE_R0); +} + +/* Emit an error message when we're in an asm, and a fatal error for + "normal" insns. Formatted output isn't easily implemented, since we + use output_operand_lossage to output the actual message and handle the + categorization of the error. */ + +static void +moxie_operand_lossage (const char *msgid, rtx op) +{ + debug_rtx (op); + output_operand_lossage ("%s", msgid); +} + +/* The PRINT_OPERAND_ADDRESS worker. */ + +void +moxie_print_operand_address (FILE *file, rtx x) +{ + switch (GET_CODE (x)) + { + case REG: + fprintf (file, "(%s)", reg_names[REGNO (x)]); + break; + + case PLUS: + switch (GET_CODE (XEXP (x, 1))) + { + case CONST_INT: + fprintf (file, "%ld(%s)", + INTVAL(XEXP (x, 1)), reg_names[REGNO (XEXP (x, 0))]); + break; + case SYMBOL_REF: + output_addr_const (file, XEXP (x, 1)); + fprintf (file, "(%s)", reg_names[REGNO (XEXP (x, 0))]); + break; + case CONST: + { + rtx plus = XEXP (XEXP (x, 1), 0); + if (GET_CODE (XEXP (plus, 0)) == SYMBOL_REF + && CONST_INT_P (XEXP (plus, 1))) + { + output_addr_const(file, XEXP (plus, 0)); + fprintf (file,"+%ld(%s)", INTVAL (XEXP (plus, 1)), + reg_names[REGNO (XEXP (x, 0))]); + } + else + abort(); + } + break; + default: + abort(); + } + break; + + default: + output_addr_const (file, x); + break; + } +} + +/* The PRINT_OPERAND worker. */ + +void +moxie_print_operand (FILE *file, rtx x, int code) +{ + rtx operand = x; + + /* New code entries should just be added to the switch below. If + handling is finished, just return. If handling was just a + modification of the operand, the modified operand should be put in + "operand", and then do a break to let default handling + (zero-modifier) output the operand. */ + + switch (code) + { + case 0: + /* No code, print as usual. */ + break; + + default: + LOSE_AND_RETURN ("invalid operand modifier letter", x); + } + + /* Print an operand as without a modifier letter. */ + switch (GET_CODE (operand)) + { + case REG: + if (REGNO (operand) > MOXIE_R13) + internal_error ("internal error: bad register: %d", REGNO (operand)); + fprintf (file, "%s", reg_names[REGNO (operand)]); + return; + + case MEM: + output_address (XEXP (operand, 0)); + return; + + default: + /* No need to handle all strange variants, let output_addr_const + do it for us. */ + if (CONSTANT_P (operand)) + { + output_addr_const (file, operand); + return; + } + + LOSE_AND_RETURN ("unexpected operand", x); + } +} + +/* Per-function machine data. */ +struct GTY(()) machine_function + { + /* Number of bytes saved on the stack for callee saved registers. */ + int callee_saved_reg_size; + + /* Number of bytes saved on the stack for local variables. */ + int local_vars_size; + + /* The sum of 2 sizes: locals vars and padding byte for saving the + * registers. Used in expand_prologue () and expand_epilogue(). */ + int size_for_adjusting_sp; + }; + +/* Zero initialization is OK for all current fields. */ + +static struct machine_function * +moxie_init_machine_status (void) +{ + return GGC_CNEW (struct machine_function); +} + + +/* The OVERRIDE_OPTIONS worker. + All this curently does is set init_machine_status. */ +void +moxie_override_options (void) +{ + /* Set the per-function-data initializer. */ + init_machine_status = moxie_init_machine_status; +} + +/* Compute the size of the local area and the size to be adjusted by the + * prologue and epilogue. */ + +static void +moxie_compute_frame (void) +{ + /* For aligning the local variables. */ + int stack_alignment = STACK_BOUNDARY / BITS_PER_UNIT; + int padding_locals; + int regno; + + /* Padding needed for each element of the frame. */ + cfun->machine->local_vars_size = get_frame_size (); + + /* Align to the stack alignment. */ + padding_locals = cfun->machine->local_vars_size % stack_alignment; + if (padding_locals) + padding_locals = stack_alignment - padding_locals; + + cfun->machine->local_vars_size += padding_locals; + + cfun->machine->callee_saved_reg_size = 0; + + /* Save callee-saved registers. */ + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (df_regs_ever_live_p (regno) && (! call_used_regs[regno])) + cfun->machine->callee_saved_reg_size += 4; + + cfun->machine->size_for_adjusting_sp = + crtl->args.pretend_args_size + + cfun->machine->local_vars_size + + (ACCUMULATE_OUTGOING_ARGS ? crtl->outgoing_args_size : 0); +} + +void +moxie_expand_prologue (void) +{ + int regno; + rtx insn; + + moxie_compute_frame (); + + /* Save callee-saved registers. */ + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + { + if (!fixed_regs[regno] && df_regs_ever_live_p (regno) && !call_used_regs[regno]) + { + insn = emit_insn (gen_movsi_push (gen_rtx_REG (Pmode, regno))); + RTX_FRAME_RELATED_P (insn) = 1; + } + } + + if (cfun->machine->size_for_adjusting_sp > 0) + { + int i = cfun->machine->size_for_adjusting_sp; + while (i > 255) + { + insn = emit_insn (gen_subsi3 (stack_pointer_rtx, + stack_pointer_rtx, + GEN_INT (255))); + RTX_FRAME_RELATED_P (insn) = 1; + i -= 255; + } + if (i > 0) + { + insn = emit_insn (gen_subsi3 (stack_pointer_rtx, + stack_pointer_rtx, + GEN_INT (i))); + RTX_FRAME_RELATED_P (insn) = 1; + } + } +} + +void +moxie_expand_epilogue (void) +{ + int regno; + rtx insn, reg, cfa_restores = NULL; + + if (cfun->machine->callee_saved_reg_size != 0) + { + reg = gen_rtx_REG (Pmode, MOXIE_R5); + if (cfun->machine->callee_saved_reg_size <= 255) + { + emit_move_insn (reg, hard_frame_pointer_rtx); + emit_insn (gen_subsi3 + (reg, reg, + GEN_INT (cfun->machine->callee_saved_reg_size))); + } + else + { + emit_move_insn (reg, + GEN_INT (-cfun->machine->callee_saved_reg_size)); + emit_insn (gen_addsi3 (reg, reg, hard_frame_pointer_rtx)); + } + for (regno = FIRST_PSEUDO_REGISTER; regno-- > 0; ) + if (!fixed_regs[regno] && !call_used_regs[regno] + && df_regs_ever_live_p (regno)) + { + rtx preg = gen_rtx_REG (Pmode, regno); + insn = emit_insn (gen_movsi_pop (reg, preg)); + } + } + + emit_jump_insn (gen_returner ()); +} + +/* Implements the macro INITIAL_ELIMINATION_OFFSET, return the OFFSET. */ + +int +moxie_initial_elimination_offset (int from, int to) +{ + int ret; + + if ((from) == FRAME_POINTER_REGNUM && (to) == HARD_FRAME_POINTER_REGNUM) + { + /* Compute this since we need to use cfun->machine->local_vars_size. */ + moxie_compute_frame (); + ret = -cfun->machine->callee_saved_reg_size; + } + else if ((from) == ARG_POINTER_REGNUM && (to) == HARD_FRAME_POINTER_REGNUM) + ret = 0x00; + else + abort (); + + return ret; +} + +/* Worker function for TARGET_SETUP_INCOMING_VARARGS. */ + +static void +moxie_setup_incoming_varargs (CUMULATIVE_ARGS *cum, + enum machine_mode mode ATTRIBUTE_UNUSED, + tree type ATTRIBUTE_UNUSED, + int *pretend_size, int no_rtl) +{ + int regno; + int regs = 8 - *cum; + + *pretend_size = regs < 0 ? 0 : GET_MODE_SIZE (SImode) * regs; + + if (no_rtl) + return; + + for (regno = *cum; regno < 8; regno++) + { + rtx reg = gen_rtx_REG (SImode, regno); + rtx slot = gen_rtx_PLUS (Pmode, + gen_rtx_REG (SImode, ARG_POINTER_REGNUM), + GEN_INT (UNITS_PER_WORD * (3 + (regno-2)))); + + emit_move_insn (gen_rtx_MEM (SImode, slot), reg); + } +} + + +/* Return the fixed registers used for condition codes. */ + +static bool +moxie_fixed_condition_code_regs (unsigned int *p1, unsigned int *p2) +{ + *p1 = CC_REG; + *p2 = INVALID_REGNUM; + return true; +} + +/* Return the next register to be used to hold a function argument or + NULL_RTX if there's no more space. */ + +rtx +moxie_function_arg (CUMULATIVE_ARGS cum, enum machine_mode mode, + tree type ATTRIBUTE_UNUSED, int named ATTRIBUTE_UNUSED) +{ + if (cum < 8) + return gen_rtx_REG (mode, cum); + else + return NULL_RTX; +} + +/* Return non-zero if the function argument described by TYPE is to be + passed by reference. */ + +static bool +moxie_pass_by_reference (CUMULATIVE_ARGS *cum ATTRIBUTE_UNUSED, + enum machine_mode mode, const_tree type, + bool named ATTRIBUTE_UNUSED) +{ + unsigned HOST_WIDE_INT size; + + if (type) + { + if (AGGREGATE_TYPE_P (type)) + return true; + size = int_size_in_bytes (type); + } + else + size = GET_MODE_SIZE (mode); + + return size > 4*6; +} + +/* Some function arguments will only partially fit in the registers + that hold arguments. Given a new arg, return the number of bytes + that fit in argument passing registers. */ + +static int +moxie_arg_partial_bytes (CUMULATIVE_ARGS *cum, + enum machine_mode mode, + tree type, bool named) +{ + int bytes_left, size; + + if (*cum >= 8) + return 0; + + if (moxie_pass_by_reference (cum, mode, type, named)) + size = 4; + else if (type) + { + if (AGGREGATE_TYPE_P (type)) + return 0; + size = int_size_in_bytes (type); + } + else + size = GET_MODE_SIZE (mode); + + bytes_left = (4 * 6) - ((*cum - 2) * 4); + + if (size > bytes_left) + return bytes_left; + else + return 0; +} + +/* Worker function for TARGET_STATIC_CHAIN. */ + +static rtx +moxie_static_chain (const_tree fndecl, bool incoming_p) +{ + rtx addr, mem; + + if (!DECL_STATIC_CHAIN (fndecl)) + return NULL; + + if (incoming_p) + addr = plus_constant (arg_pointer_rtx, 2 * UNITS_PER_WORD); + else + addr = plus_constant (stack_pointer_rtx, -UNITS_PER_WORD); + + mem = gen_rtx_MEM (Pmode, addr); + MEM_NOTRAP_P (mem) = 1; + + return mem; +} + +/* Worker function for TARGET_ASM_TRAMPOLINE_TEMPLATE. */ + +static void +moxie_asm_trampoline_template (FILE *f) +{ + fprintf (f, "\tpush $sp, $r0\n"); + fprintf (f, "\tldi.l $r0, 0x0\n"); + fprintf (f, "\tsto.l 0x8($fp), $r0\n"); + fprintf (f, "\tpop $sp, $r0\n"); + fprintf (f, "\tnop\n"); + fprintf (f, "\tjmpa 0x0\n"); +} + +/* Worker function for TARGET_TRAMPOLINE_INIT. */ + +static void +moxie_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value) +{ + rtx mem, fnaddr = XEXP (DECL_RTL (fndecl), 0); + + emit_block_move (m_tramp, assemble_trampoline_template (), + GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL); + + mem = adjust_address (m_tramp, SImode, 4); + emit_move_insn (mem, chain_value); + mem = adjust_address (m_tramp, SImode, 20); + emit_move_insn (mem, fnaddr); +} + +/* The Global `targetm' Variable. */ + +/* Initialize the GCC target structure. */ + +#undef TARGET_PROMOTE_PROTOTYPES +#define TARGET_PROMOTE_PROTOTYPES hook_bool_const_tree_true + +#undef TARGET_RETURN_IN_MEMORY +#define TARGET_RETURN_IN_MEMORY moxie_return_in_memory +#undef TARGET_MUST_PASS_IN_STACK +#define TARGET_MUST_PASS_IN_STACK must_pass_in_stack_var_size +#undef TARGET_PASS_BY_REFERENCE +#define TARGET_PASS_BY_REFERENCE moxie_pass_by_reference +#undef TARGET_ARG_PARTIAL_BYTES +#define TARGET_ARG_PARTIAL_BYTES moxie_arg_partial_bytes + + +#undef TARGET_SETUP_INCOMING_VARARGS +#define TARGET_SETUP_INCOMING_VARARGS moxie_setup_incoming_varargs + +#undef TARGET_FIXED_CONDITION_CODE_REGS +#define TARGET_FIXED_CONDITION_CODE_REGS moxie_fixed_condition_code_regs + +/* Define this to return an RTX representing the place where a + function returns or receives a value of data type RET_TYPE, a tree + node node representing a data type. */ +#undef TARGET_FUNCTION_VALUE +#define TARGET_FUNCTION_VALUE moxie_function_value + +#undef TARGET_FRAME_POINTER_REQUIRED +#define TARGET_FRAME_POINTER_REQUIRED hook_bool_void_true + +#undef TARGET_STATIC_CHAIN +#define TARGET_STATIC_CHAIN moxie_static_chain +#undef TARGET_ASM_TRAMPOLINE_TEMPLATE +#define TARGET_ASM_TRAMPOLINE_TEMPLATE moxie_asm_trampoline_template +#undef TARGET_TRAMPOLINE_INIT +#define TARGET_TRAMPOLINE_INIT moxie_trampoline_init + +struct gcc_target targetm = TARGET_INITIALIZER; + +#include "gt-moxie.h"

moxie.c Property changes : Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: predicates.md =================================================================== --- predicates.md (nonexistent) +++ predicates.md (revision 338) @@ -0,0 +1,55 @@ +;; Predicate definitions for Moxie +;; Copyright (C) 2009 Free Software Foundation, Inc. +;; Contributed by Anthony Green + +;; This file is part of GCC. + +;; GCC 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 3, or (at your +;; option) any later version. + +;; GCC 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 GCC; see the file COPYING3. If not see +;; . + +;; ------------------------------------------------------------------------- +;; Predicates +;; ------------------------------------------------------------------------- + +;; Nonzero if OP can be source of a simple move operation. + +(define_predicate "moxie_general_movsrc_operand" + (match_code "mem,const_int,reg,subreg,symbol_ref,label_ref,const") +{ + /* Any (MEM LABEL_REF) is OK. That is a pc-relative load. */ + if (MEM_P (op) && GET_CODE (XEXP (op, 0)) == LABEL_REF) + return 1; + + if (MEM_P (op) + && GET_CODE (XEXP (op, 0)) == PLUS + && GET_CODE (XEXP (XEXP (op, 0), 0)) == REG + && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST) + return 1; + + return general_operand (op, mode); +}) + +;; Nonzero if OP can be an operand to an add/inc/dec instruction. + +(define_predicate "moxie_add_operand" + (ior (match_code "reg") + (and (match_code "const_int") + (match_test "IN_RANGE (INTVAL (op), -255, 255)")))) + +;; Nonzero if OP can be an operand to an sub/dec instruction. + +(define_predicate "moxie_sub_operand" + (ior (match_code "reg") + (and (match_code "const_int") + (match_test "IN_RANGE (INTVAL (op), 0, 255)")))) \ No newline at end of file Index: t-moxie =================================================================== --- t-moxie (nonexistent) +++ t-moxie (revision 338) @@ -0,0 +1,20 @@ +# Target Makefile Fragment for moxie +# Copyright (C) 2008 Free Software Foundation, Inc. +# Contributed by Anthony Green. +# +# This file is part of GCC. +# +# GCC 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 3, or (at your +# option) any later version. +# +# GCC 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 GCC; see the file COPYING3. If not see +# . + Index: crtn.asm =================================================================== --- crtn.asm (nonexistent) +++ crtn.asm (revision 338) @@ -0,0 +1,34 @@ +# crtn.asm for moxie +# +# Copyright (C) 2009 Free Software Foundation +# +# This file 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 3, or (at your option) any +# later version. +# +# This file 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. +# +# Under Section 7 of GPL version 3, you are granted additional +# permissions described in the GCC Runtime Library Exception, version +# 3.1, as published by the Free Software Foundation. +# +# You should have received a copy of the GNU General Public License and +# a copy of the GCC Runtime Library Exception along with this program; +# see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +# . + +# This file just makes sure that the .fini and .init sections do in +# fact return. Users may put any desired instructions in those sections. +# This file is the last thing linked into any executable. + + .file "crtn.asm" + + .section ".init" + ret + + .section ".fini" + ret Index: constraints.md =================================================================== --- constraints.md (nonexistent) +++ constraints.md (revision 338) @@ -0,0 +1,56 @@ +;; Constraint definitions for Moxie +;; Copyright (C) 2009 Free Software Foundation, Inc. +;; Contributed by Anthony Green + +;; This file is part of GCC. + +;; GCC 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 3, or (at your +;; option) any later version. + +;; GCC 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 GCC; see the file COPYING3. If not see +;; . + +;; ------------------------------------------------------------------------- +;; Constraints +;; ------------------------------------------------------------------------- + +(define_constraint "A" + "An absolute address." + (and (match_code "mem") + (ior (match_test "GET_CODE (XEXP (op, 0)) == SYMBOL_REF") + (match_test "GET_CODE (XEXP (op, 0)) == LABEL_REF") + (match_test "GET_CODE (XEXP (op, 0)) == CONST")))) + +(define_constraint "B" + "An offset address." + (and (match_code "mem") + (match_test "GET_CODE (XEXP (op, 0)) == PLUS"))) + +(define_constraint "W" + "A register indirect memory operand." + (and (match_code "mem") + (match_test "REG_P (XEXP (op, 0)) + && REGNO_OK_FOR_BASE_P (REGNO (XEXP (op, 0)))"))) + +(define_constraint "O" + "The constant zero" + (and (match_code "const_int") + (match_test "ival == 0"))) + +(define_constraint "I" + "An 8-bit constant (0..255)" + (and (match_code "const_int") + (match_test "ival >= 0 && ival <= 255"))) + +(define_constraint "N" + "A constant -(0..255)" + (and (match_code "const_int") + (match_test "ival >= -255 && ival <= 0"))) Index: moxie.h =================================================================== --- moxie.h (nonexistent) +++ moxie.h (revision 338) @@ -0,0 +1,521 @@ +/* Target Definitions for moxie. + Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. + Contributed by Anthony Green. + + This file is part of GCC. + + GCC 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 3, or (at your + option) any later version. + + GCC 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 GCC; see the file COPYING3. If not see + . */ + +#ifndef GCC_MOXIE_H +#define GCC_MOXIE_H + +/* This is defined by svr4.h, which is included prior to this file. + However, we should undefine it for moxie-elf, since we don't provide + functions like access() and mkdir() in newlib. This will have to + be defined again for a Linux port. */ +#undef TARGET_POSIX_IO + +/* Another C string constant used much like `LINK_SPEC'. The difference + between the two is that `STARTFILE_SPEC' is used at the very beginning of + the command given to the linker. + + If this macro is not defined, a default is provided that loads the standard + C startup file from the usual place. See `gcc.c'. + + Defined in svr4.h. */ +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "crt0%O%s crti.o%s crtbegin.o%s" + +/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own + magical crtend.o file (see crtstuff.c) which provides part of the + support for getting C++ file-scope static object constructed before + entering `main', followed by the normal svr3/svr4 "finalizer" file, + which is either `gcrtn.o' or `crtn.o'. */ + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "crtend.o%s crtn.o%s" + +/* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default + standard C library (unless we are building a shared library) and + the simulator BSP code. */ + +#undef LIB_SPEC +#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}" + +/* Layout of Source Language Data Types */ + +#define INT_TYPE_SIZE 32 +#define SHORT_TYPE_SIZE 16 +#define LONG_TYPE_SIZE 32 +#define LONG_LONG_TYPE_SIZE 64 + +#define FLOAT_TYPE_SIZE 32 +#define DOUBLE_TYPE_SIZE 64 +#define LONG_DOUBLE_TYPE_SIZE 64 + +#define DEFAULT_SIGNED_CHAR 1 + +/* Registers... + + $fp - frame pointer + $sp - stack pointer + $r0 - general purpose 32-bit register. + $r1 - general purpose 32-bit register. + $r2 - general purpose 32-bit register. + $r3 - general purpose 32-bit register. + $r4 - general purpose 32-bit register. + $r5 - general purpose 32-bit register. + $r6 - general purpose 32-bit register. + $r7 - general purpose 32-bit register. + $r8 - general purpose 32-bit register. + $r9 - general purpose 32-bit register. + $r10 - general purpose 32-bit register. + $r11 - general purpose 32-bit register. + $r12 - general purpose 32-bit register. + $r13 - reserved for execution environment. + + Special Registers... + + $pc - 32-bit program counter. + +*/ + +#define REGISTER_NAMES { \ + "$fp", "$sp", "$r0", "$r1", \ + "$r2", "$r3", "$r4", "$r5", \ + "$r6", "$r7", "$r8", "$r9", \ + "$r10", "$r11", "$r12", "$r13", \ + "?fp", "?ap", "$pc", "?cc" } + +#define MOXIE_FP 0 +#define MOXIE_SP 1 +#define MOXIE_R0 2 +#define MOXIE_R1 3 +#define MOXIE_R2 4 +#define MOXIE_R3 5 +#define MOXIE_R4 6 +#define MOXIE_R5 7 +#define MOXIE_R6 8 +#define MOXIE_R7 9 +#define MOXIE_R8 10 +#define MOXIE_R9 11 +#define MOXIE_R10 12 +#define MOXIE_R11 13 +#define MOXIE_R12 14 +#define MOXIE_R13 15 +#define MOXIE_QFP 16 +#define MOXIE_QAP 17 +#define MOXIE_PC 18 +#define MOXIE_CC 19 + +#define FIRST_PSEUDO_REGISTER 20 + +enum reg_class +{ + NO_REGS, + GENERAL_REGS, + SPECIAL_REGS, + CC_REGS, + ALL_REGS, + LIM_REG_CLASSES +}; + + +/* The following macro defines cover classes for Integrated Register + Allocator. Cover classes is a set of non-intersected register + classes covering all hard registers used for register allocation + purpose. Any move between two registers of a cover class should be + cheaper than load or store of the registers. The macro value is + array of register classes with LIM_REG_CLASSES used as the end + marker. */ +#define IRA_COVER_CLASSES { GENERAL_REGS, LIM_REG_CLASSES } + +#define REG_CLASS_CONTENTS \ +{ { 0x00000000 }, /* Empty */ \ + { 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \ + { 0x00040000 }, /* $pc */ \ + { 0x00080000 }, /* ?cc */ \ + { 0x000FFFFF } /* All registers */ \ +} + +#define N_REG_CLASSES LIM_REG_CLASSES + +#define REG_CLASS_NAMES {\ + "NO_REGS", \ + "GENERAL_REGS", \ + "SPECIAL_REGS", \ + "CC_REGS", \ + "ALL_REGS" } + +#define FIXED_REGISTERS { 1, 1, 0, 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, 0, \ + 0, 0, 0, 1, \ + 1, 1, 1, 1 } + +#define CALL_USED_REGISTERS { 1, 1, 1, 1, \ + 1, 1, 1, 1, \ + 0, 0, 0, 0, \ + 0, 0, 1, 1, \ + 1, 1, 1, 1 } + +/* We can't copy to or from our CC register. */ +#define AVOID_CCMODE_COPIES 1 + +/* A C expression that is nonzero if it is permissible to store a + value of mode MODE in hard register number REGNO (or in several + registers starting with that one). All gstore registers are + equivalent, so we can set this to 1. */ +#define HARD_REGNO_MODE_OK(R,M) 1 + +/* A C expression whose value is a register class containing hard + register REGNO. */ +#define REGNO_REG_CLASS(R) ((R < MOXIE_PC) ? GENERAL_REGS : \ + (R == MOXIE_CC ? CC_REGS : SPECIAL_REGS)) + +/* A C expression for the number of consecutive hard registers, + starting at register number REGNO, required to hold a value of mode + MODE. */ +#define HARD_REGNO_NREGS(REGNO, MODE) \ + ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) \ + / UNITS_PER_WORD) + +/* A C expression that is nonzero if a value of mode MODE1 is + accessible in mode MODE2 without copying. */ +#define MODES_TIEABLE_P(MODE1, MODE2) 1 + +/* A C expression for the maximum number of consecutive registers of + class CLASS needed to hold a value of mode MODE. */ +#define CLASS_MAX_NREGS(CLASS, MODE) \ + ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) + +/* A C expression that places additional restrictions on the register + class to use when it is necessary to copy value X into a register + in class CLASS. */ +#define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS + +/* The Overall Framework of an Assembler File */ + +#undef ASM_SPEC +#define ASM_COMMENT_START "#" +#define ASM_APP_ON "" +#define ASM_APP_OFF "" + +#define FILE_ASM_OP "\t.file\n" + +/* Switch to the text or data segment. */ +#define TEXT_SECTION_ASM_OP "\t.text" +#define DATA_SECTION_ASM_OP "\t.data" + +/* Assembler Commands for Alignment */ + +#define ASM_OUTPUT_ALIGN(STREAM,POWER) \ + fprintf (STREAM, "\t.p2align\t%d\n", POWER); + +/* A C compound statement to output to stdio stream STREAM the + assembler syntax for an instruction operand X. */ +#define PRINT_OPERAND(STREAM, X, CODE) moxie_print_operand (STREAM, X, CODE) + +#define PRINT_OPERAND_ADDRESS(STREAM ,X) moxie_print_operand_address (STREAM, X) + +/* Output and Generation of Labels */ + +#define GLOBAL_ASM_OP "\t.global\t" + +/* Passing Arguments in Registers */ + +/* A C expression that controls whether a function argument is passed + in a register, and which register. */ +#define FUNCTION_ARG(CUM,MODE,TYPE,NAMED) \ + moxie_function_arg(CUM,MODE,TYPE,NAMED) + +/* A C type for declaring a variable that is used as the first + argument of `FUNCTION_ARG' and other related values. */ +#define CUMULATIVE_ARGS unsigned int + +/* If defined, the maximum amount of space required for outgoing arguments + will be computed and placed into the variable + `current_function_outgoing_args_size'. No space will be pushed + onto the stack for each call; instead, the function prologue should + increase the stack frame size by this amount. */ +#define ACCUMULATE_OUTGOING_ARGS 1 + +/* A C statement (sans semicolon) for initializing the variable CUM + for the state at the beginning of the argument list. + For moxie, the first arg is passed in register 2 (aka $r0). */ +#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,FNDECL,N_NAMED_ARGS) \ + (CUM = MOXIE_R0) + +#define MOXIE_FUNCTION_ARG_SIZE(MODE, TYPE) \ + ((MODE) != BLKmode ? GET_MODE_SIZE (MODE) \ + : (unsigned) int_size_in_bytes (TYPE)) + +#define FUNCTION_ARG_ADVANCE(CUM,MODE,TYPE,NAMED) \ + (CUM = (CUM < MOXIE_R6 ? \ + CUM + ((3 + MOXIE_FUNCTION_ARG_SIZE(MODE,TYPE))/4) : CUM )) + +/* How Scalar Function Values Are Returned */ + +/* These macros are deprecated, but we still need them for now since + the version of gcc we're using doesn't fully support + TARGET_FUNCTION_VALUE. */ +#define FUNCTION_VALUE(VALTYPE, FUNC) \ + moxie_function_value (VALTYPE, FUNC, 0) +#define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) \ + moxie_function_value (VALTYPE, FUNC, 1) + +/* A C expression to create an RTX representing the place where a + library function returns a value of mode MODE. */ +#define LIBCALL_VALUE(MODE) gen_rtx_REG (MODE, 2) + +/* STACK AND CALLING */ + +/* Define this macro if pushing a word onto the stack moves the stack + pointer to a smaller address. */ +#define STACK_GROWS_DOWNWARD + +#define INITIAL_FRAME_POINTER_OFFSET(DEPTH) (DEPTH) = 0 + +/* Offset from the frame pointer to the first local variable slot to + be allocated. */ +#define STARTING_FRAME_OFFSET 0 + +/* Define this if the above stack space is to be considered part of the + space allocated by the caller. */ +#define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 +#define STACK_PARMS_IN_REG_PARM_AREA + +/* Define this if it is the responsibility of the caller to allocate + the area reserved for arguments passed in registers. */ +#define REG_PARM_STACK_SPACE(FNDECL) (6 * UNITS_PER_WORD) + +/* Offset from the argument pointer register to the first argument's + address. On some machines it may depend on the data type of the + function. */ +#define FIRST_PARM_OFFSET(F) 12 + +/* Define this macro to nonzero value if the addresses of local variable slots + are at negative offsets from the frame pointer. */ +#define FRAME_GROWS_DOWNWARD 1 + +/* Define this macro as a C expression that is nonzero for registers that are + used by the epilogue or the return pattern. The stack and frame + pointer registers are already assumed to be used as needed. */ +#define EPILOGUE_USES(R) (R == MOXIE_R5) + +#define OVERRIDE_OPTIONS moxie_override_options () + +/* Storage Layout */ + +#define BITS_BIG_ENDIAN 0 +#define BYTES_BIG_ENDIAN 1 +#define WORDS_BIG_ENDIAN 1 + +/* Alignment required for a function entry point, in bits. */ +#define FUNCTION_BOUNDARY 16 + +/* Define this macro as a C expression which is nonzero if accessing + less than a word of memory (i.e. a `char' or a `short') is no + faster than accessing a word of memory. */ +#define SLOW_BYTE_ACCESS 1 + +/* Number of storage units in a word; normally the size of a + general-purpose register, a power of two from 1 or 8. */ +#define UNITS_PER_WORD 4 + +/* Define this macro to the minimum alignment enforced by hardware + for the stack pointer on this machine. The definition is a C + expression for the desired alignment (measured in bits). */ +#define STACK_BOUNDARY 32 + +/* Normal alignment required for function parameters on the stack, in + bits. All stack parameters receive at least this much alignment + regardless of data type. */ +#define PARM_BOUNDARY 32 + +/* Alignment of field after `int : 0' in a structure. */ +#define EMPTY_FIELD_BOUNDARY 32 + +/* No data type wants to be aligned rounder than this. */ +#define BIGGEST_ALIGNMENT 32 + +/* The best alignment to use in cases where we have a choice. */ +#define FASTEST_ALIGNMENT 32 + +/* Every structures size must be a multiple of 8 bits. */ +#define STRUCTURE_SIZE_BOUNDARY 8 + +/* Look at the fundamental type that is used for a bit-field and use + that to impose alignment on the enclosing structure. + struct s {int a:8}; should have same alignment as "int", not "char". */ +#define PCC_BITFIELD_TYPE_MATTERS 1 + +/* Largest integer machine mode for structures. If undefined, the default + is GET_MODE_SIZE(DImode). */ +#define MAX_FIXED_MODE_SIZE 32 + +/* Make strings word-aligned so strcpy from constants will be faster. */ +#define CONSTANT_ALIGNMENT(EXP, ALIGN) \ + ((TREE_CODE (EXP) == STRING_CST \ + && (ALIGN) < FASTEST_ALIGNMENT) \ + ? FASTEST_ALIGNMENT : (ALIGN)) + +/* Make arrays of chars word-aligned for the same reasons. */ +#define DATA_ALIGNMENT(TYPE, ALIGN) \ + (TREE_CODE (TYPE) == ARRAY_TYPE \ + && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ + && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) + +/* Set this nonzero if move instructions will actually fail to work + when given unaligned data. */ +#define STRICT_ALIGNMENT 1 + +/* Generating Code for Profiling */ +#define FUNCTION_PROFILER(FILE,LABELNO) (abort (), 0) + +/* Trampolines for Nested Functions. */ +#define TRAMPOLINE_SIZE (2 + 6 + 6 + 2 + 2 + 6) + +/* Alignment required for trampolines, in bits. */ +#define TRAMPOLINE_ALIGNMENT 32 + +/* An alias for the machine mode for pointers. */ +#define Pmode SImode + +/* An alias for the machine mode used for memory references to + functions being called, in `call' RTL expressions. */ +#define FUNCTION_MODE QImode + +/* The register number of the stack pointer register, which must also + be a fixed register according to `FIXED_REGISTERS'. */ +#define STACK_POINTER_REGNUM MOXIE_SP + +/* The register number of the frame pointer register, which is used to + access automatic variables in the stack frame. */ +#define FRAME_POINTER_REGNUM MOXIE_QFP + +/* The register number of the arg pointer register, which is used to + access the function's argument list. */ +#define ARG_POINTER_REGNUM MOXIE_QAP + +#define HARD_FRAME_POINTER_REGNUM MOXIE_FP + +#define ELIMINABLE_REGS \ +{{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ + { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} + +/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It + specifies the initial difference between the specified pair of + registers. This macro must be defined if `ELIMINABLE_REGS' is + defined. */ +#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ + do { \ + (OFFSET) = moxie_initial_elimination_offset ((FROM), (TO)); \ + } while (0) + +/* A C expression that is nonzero if REGNO is the number of a hard + register in which function arguments are sometimes passed. */ +#define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R5) + +/* A C expression that is nonzero if REGNO is the number of a hard + register in which the values of called function may come back. */ +#define FUNCTION_VALUE_REGNO_P(r) (r == MOXIE_R0) + +/* A macro whose definition is the name of the class to which a valid + base register must belong. A base register is one used in an + address which is the register value plus a displacement. */ +#define BASE_REG_CLASS GENERAL_REGS + +#define INDEX_REG_CLASS NO_REGS + +#define HARD_REGNO_OK_FOR_BASE_P(NUM) \ + ((NUM) >= 0 && (NUM) < FIRST_PSEUDO_REGISTER \ + && (REGNO_REG_CLASS(NUM) == GENERAL_REGS \ + || (NUM) == HARD_FRAME_POINTER_REGNUM)) + +/* A C expression which is nonzero if register number NUM is suitable + for use as a base register in operand addresses. */ +#ifdef REG_OK_STRICT +#define REGNO_OK_FOR_BASE_P(NUM) \ + (HARD_REGNO_OK_FOR_BASE_P(NUM) \ + || HARD_REGNO_OK_FOR_BASE_P(reg_renumber[(NUM)])) +#else +#define REGNO_OK_FOR_BASE_P(NUM) \ + ((NUM) >= FIRST_PSEUDO_REGISTER || HARD_REGNO_OK_FOR_BASE_P(NUM)) +#endif + +/* A C expression which is nonzero if register number NUM is suitable + for use as an index register in operand addresses. */ +#define REGNO_OK_FOR_INDEX_P(NUM) MOXIE_FP + +/* The maximum number of bytes that a single instruction can move + quickly between memory and registers or between two memory + locations. */ +#define MOVE_MAX 4 +#define TRULY_NOOP_TRUNCATION(op,ip) 1 + +/* All load operations zero extend. */ +#define LOAD_EXTEND_OP(MEM) ZERO_EXTEND + +#define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0 + +/* A C expression that is nonzero if X is a legitimate constant for + an immediate operand on the target machine. */ +#define LEGITIMATE_CONSTANT_P(X) 1 + +/* A number, the maximum number of registers that can appear in a + valid memory address. */ +#define MAX_REGS_PER_ADDRESS 1 + +#define TRULY_NOOP_TRUNCATION(op,ip) 1 + +/* An alias for a machine mode name. This is the machine mode that + elements of a jump-table should have. */ +#define CASE_VECTOR_MODE SImode + +/* A C compound statement with a conditional `goto LABEL;' executed + if X (an RTX) is a legitimate memory address on the target machine + for a memory operand of mode MODE. */ +#define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL) \ + do { \ + if (GET_CODE(X) == PLUS) \ + { \ + rtx op1,op2; \ + op1 = XEXP(X,0); \ + op2 = XEXP(X,1); \ + if (GET_CODE(op1) == REG \ + && CONSTANT_ADDRESS_P(op2) \ + && REGNO_OK_FOR_BASE_P(REGNO(op1))) \ + goto LABEL; \ + } \ + if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X))) \ + goto LABEL; \ + if (GET_CODE (X) == SYMBOL_REF \ + || GET_CODE (X) == LABEL_REF \ + || GET_CODE (X) == CONST) \ + goto LABEL; \ + } while (0) + +/* Run-time Target Specification */ + +#define TARGET_CPU_CPP_BUILTINS() \ + { \ + builtin_define_std ("moxie"); \ + builtin_define_std ("MOXIE"); \ + } + +#define HAS_LONG_UNCOND_BRANCH true + +#endif /* GCC_MOXIE_H */

moxie.h Property changes : Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: moxie-protos.h =================================================================== --- moxie-protos.h (nonexistent) +++ moxie-protos.h (revision 338) @@ -0,0 +1,31 @@ +/* Prototypes for moxie.c functions used in the md file & elsewhere. + Copyright (C) 2009 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC 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 3, or (at your option) +any later version. + +GCC 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 GCC; see the file COPYING3. If not see +. */ + +extern void moxie_override_options (void); +extern void moxie_expand_prologue (void); +extern void moxie_expand_epilogue (void); +extern int moxie_initial_elimination_offset (int, int); +extern rtx moxie_function_value (const_tree, const_tree, + bool ATTRIBUTE_UNUSED); +extern void moxie_print_operand (FILE *, rtx, int); +extern void moxie_print_operand_address (FILE *, rtx); +#ifdef RTX_CODE +extern rtx moxie_function_arg (CUMULATIVE_ARGS, + enum machine_mode, tree, int); +#endif /* RTX_CODE */

moxie-protos.h Property changes : Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property Index: uclinux.h =================================================================== --- uclinux.h (nonexistent) +++ uclinux.h (revision 338) @@ -0,0 +1,39 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC 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 3, or (at your option) any later +version. + +GCC 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. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC \ + "%{!shared: crt1%O%s} crti%O%s crtbegin%O%s" + +#undef LINK_SPEC +#define LINK_SPEC "-elf2flt" + +#define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS() + +/* Like the definition in gcc.c, but for purposes of uClinux, every link is + static. */ +#define MFWRAP_SPEC " %{fmudflap|fmudflapth: \ + --wrap=malloc --wrap=free --wrap=calloc --wrap=realloc\ + --wrap=mmap --wrap=munmap --wrap=alloca\ + %{fmudflapth: --wrap=pthread_create\ +}} %{fmudflap|fmudflapth: --wrap=main}"

uclinux.h Property changes : Added: svn:eol-style ## -0,0 +1 ## +native \ No newline at end of property Added: svn:keywords ## -0,0 +1 ## +Id \ No newline at end of property