+2009-07-31 Anthony Green <green@moxielogic.com>
+
+ * config/moxie/moxie.c (moxie_expand_prologue): Use $r5 instead of
+ $r12 in prologue.
+ (moxie_expand_epilogue): Ditto for epilogue.
+ (moxie_setup_incoming_varargs): ABI change. Use 5 registers for
+ incoming arguments.
+ (moxie_function_arg): Ditto.
+ (moxie_pass_by_reference): Ditto.
+ (moxie_arg_partial_bytes): Ditto.
+ * config/moxie/moxie.h (CALL_USED_REGISTERS): Ditto.
+ (FUNCTION_ARG_ADVANCE) Ditto.
+ (REG_PARM_STACK_SPACE) Ditto.
+ (FUNCTION_ARG_REGNO_P) Dito.
+
+ * config.gcc: Add moxie linux config support.
+ * gcc/config/moxie/uclinux.h: New file.
+
2009-07-31 DJ Delorie <dj@redhat.com>
* config/sh/sh.md (UNSPECV_SP_SWITCH_B): New.
extra_parts="crti.o crtn.o crtbegin.o crtend.o"
tmake_file="${tmake_file} moxie/t-moxie moxie/t-moxie-softfp soft-fp/t-softfp"
;;
+moxie-*-uclinux*)
+ gas=yes
+ gnu_ld=yes
+ tm_file="dbxelf.h elfos.h svr4.h ${tm_file} linux.h glibc-stdint.h moxie/uclinux.h"
+ extra_parts="crti.o crtn.o crtbegin.o crtend.o"
+ tmake_file="${tmake_file} moxie/t-moxie moxie/t-moxie-softfp soft-fp/t-softfp"
+ tm_defines="${tm_defines} UCLIBC_DEFAULT=1"
+ extra_options="${extra_options} linux.opt"
+ ;;
h8300-*-rtems*)
tmake_file="h8300/t-h8300 h8300/t-elf t-rtems h8300/t-rtems"
tm_file="h8300/h8300.h dbxelf.h elfos.h h8300/elf.h h8300/rtems.h rtems.h newlib-stdint.h"
{
insn =
emit_insn (gen_movsi
- (gen_rtx_REG (Pmode, MOXIE_R12),
+ (gen_rtx_REG (Pmode, MOXIE_R5),
GEN_INT (-cfun->machine->size_for_adjusting_sp)));
RTX_FRAME_RELATED_P (insn) = 1;
insn = emit_insn (gen_addsi3 (stack_pointer_rtx,
stack_pointer_rtx,
- gen_rtx_REG (Pmode, MOXIE_R12)));
+ gen_rtx_REG (Pmode, MOXIE_R5)));
RTX_FRAME_RELATED_P (insn) = 1;
}
}
if (cfun->machine->callee_saved_reg_size != 0)
{
- reg = gen_rtx_REG (Pmode, MOXIE_R12);
+ reg = gen_rtx_REG (Pmode, MOXIE_R5);
if (cfun->machine->callee_saved_reg_size <= 255)
{
emit_move_insn (reg, hard_frame_pointer_rtx);
int *pretend_size, int no_rtl)
{
int regno;
- int regs = 4 - *cum;
+ int regs = 7 - *cum;
*pretend_size = regs < 0 ? 0 : GET_MODE_SIZE (SImode) * regs;
if (no_rtl)
return;
- for (regno = *cum; regno < 4; regno++)
+ for (regno = *cum; regno < 7; regno++)
{
rtx reg = gen_rtx_REG (SImode, regno);
rtx slot = gen_rtx_PLUS (Pmode,
moxie_function_arg (CUMULATIVE_ARGS cum, enum machine_mode mode,
tree type ATTRIBUTE_UNUSED, int named ATTRIBUTE_UNUSED)
{
- if (cum < 4)
+ if (cum < 7)
return gen_rtx_REG (mode, cum);
else
return NULL_RTX;
else
size = GET_MODE_SIZE (mode);
- return size > 8;
+ return size > 4*5;
}
/* Some function arguments will only partially fit in the registers
{
int bytes_left, size;
- if (*cum >= 4)
+ if (*cum >= 7)
return 0;
if (moxie_pass_by_reference (cum, mode, type, named))
else
size = GET_MODE_SIZE (mode);
- bytes_left = 8 - ((*cum - 2) * 4);
+ bytes_left = (4 * 5) - ((*cum - 2) * 4);
if (size > bytes_left)
return bytes_left;
#define REG_CLASS_CONTENTS \
{ { 0x00000000 }, /* Empty */ \
- { 0x0003FFFF }, /* $fp, $sp, $r0 to $r5, ?fp */ \
+ { 0x0003FFFF }, /* $fp, $sp, $r0 to $r13, ?fp */ \
{ 0x00040000 }, /* $pc */ \
{ 0x00080000 }, /* ?cc */ \
{ 0x000FFFFF } /* All registers */ \
1, 1, 1, 1 }
#define CALL_USED_REGISTERS { 1, 1, 1, 1, \
- 0, 0, 0, 0, \
+ 1, 1, 1, 1, \
0, 0, 0, 0, \
0, 0, 1, 1, \
1, 1, 1, 1 }
: (unsigned) int_size_in_bytes (TYPE))
#define FUNCTION_ARG_ADVANCE(CUM,MODE,TYPE,NAMED) \
- (CUM = (CUM < MOXIE_R2 ? \
+ (CUM = (CUM < MOXIE_R5 ? \
CUM + ((3 + MOXIE_FUNCTION_ARG_SIZE(MODE,TYPE))/4) : CUM ))
/* How Scalar Function Values Are Returned */
/* 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) (2 * UNITS_PER_WORD)
+#define REG_PARM_STACK_SPACE(FNDECL) (5 * 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
/* The register number of the stack pointer register, which must also
be a fixed register according to `FIXED_REGISTERS'. */
-#define STACK_POINTER_REGNUM 1
+#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 HARD_FRAME_POINTER_REGNUM MOXIE_FP
-#if 0
-#define ELIMINABLE_REGS \
-{{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }, \
- { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \
- { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \
- { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }}
-#else
#define ELIMINABLE_REGS \
{{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \
{ ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }}
-#endif
/* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It
specifies the initial difference between the specified pair of
/* 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_R1)
+#define FUNCTION_ARG_REGNO_P(r) (r >= MOXIE_R0 && r <= MOXIE_R4)
/* 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. */
--- /dev/null
+/* 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
+<http://www.gnu.org/licenses/>. */
+
+#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}"