procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

MAINTAINERS: Add Nick Clifton and DJ Delorie as msp430 maintainers.

Browse source 
* MAINTAINERS: Add Nick Clifton and DJ Delorie as msp430
maintainers.

[gcc]
* config/msp430/: New port.
* config.gcc (msp430): Added.
* doc/invoke.texi: Document MSP430 options.
* doc/install.texi: Document msp430-elf
* doc/md.texi: Document msp430-elf
* doc/contrib.texi: Document msp430-elf

[libgcc]
* config.host (msp*-*-elf): New.
* config/msp430/: New port.

[contrib]
* config-list.mk: Add msp430-elf.

From-SVN: r202535
This commit is contained in:
DJ Delorie 2013-09-12 13:52:41 -04:00 • committed by DJ Delorie
parent 8369f38a6f
commit f6a83b4a9f
43 changed files with 4915 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
ChangeLog
View file

@ -1,3 +1,8 @@
2013-09-12 DJ Delorie <dj@redhat.com>
* MAINTAINERS: Add Nick Clifton and DJ Delorie as msp430
maintainers.
2013-09-03 Richard Biener <rguenther@suse.de>
* configure.ac: Also allow ISL 0.12.

2
MAINTAINERS
View file

@ -87,6 +87,8 @@ mmix port Hans-Peter Nilsson hp@bitrange.com
mn10300 port Jeff Law law@redhat.com
mn10300 port Alexandre Oliva aoliva@redhat.com
moxie port Anthony Green green@moxielogic.com
msp430 port DJ Delorie dj@redhat.com
msp430 port Nick Clifton nickc@redhat.com
nds32 port Chung-Ju Wu jasonwucj@gmail.com
nds32 port Shiva Chen shiva0217@gmail.com
pdp11 port Paul Koning ni1d@arrl.net

4
contrib/ChangeLog
View file

@ -1,3 +1,7 @@
2013-09-12 DJ Delorie <dj@redhat.com>
* config-list.mk: Add msp430-elf.
2013-08-31 Diego Novillo <dnovillo@google.com>
* testsuite-management/x86_64-unknown-linux-gnu.xfail: Update.

1
contrib/config-list.mk
View file

@ -44,6 +44,7 @@ LIST = aarch64-elf aarch64-linux-gnu \
mipsel-elf mips64-elf mips64vr-elf mips64orion-elf mips-rtems \
mips-wrs-vxworks mipstx39-elf mmix-knuth-mmixware mn10300-elf moxie-elf \
moxie-uclinux moxie-rtems pdp11-aout picochip-elfOPT-enable-obsolete \
msp430-elf \
powerpc-darwin8 \
powerpc-darwin7 powerpc64-darwin powerpc-freebsd6 powerpc-netbsd \
powerpc-eabispe powerpc-eabisimaltivec powerpc-eabisim ppc-elf \

7
gcc/ChangeLog
View file

@ -1,5 +1,12 @@
2013-09-12 DJ Delorie <dj@redhat.com>
* config/msp430/: New port.
* config.gcc (msp430): Added.
* doc/invoke.texi: Document MSP430 options.
* doc/install.texi: Document msp430-elf
* doc/md.texi: Document msp430-elf
* doc/contrib.texi: Document msp430-elf
* cfgexpand.c (expand_debug_expr): Avoid sign-extending SImode to
PSImode.

7
gcc/config.gcc
View file

@ -2030,6 +2030,13 @@ mn10300-*-*)
use_collect2=no
use_gcc_stdint=wrap
;;
msp430*-*-*)
tm_file="dbxelf.h elfos.h newlib-stdint.h ${tm_file}"
c_target_objs="msp430-c.o"
cxx_target_objs="msp430-c.o"
target_has_targetm_common=no
tmake_file="${tmake_file} msp430/t-msp430"
;;
pdp11-*-*)
tm_file="${tm_file} newlib-stdint.h"
use_gcc_stdint=wrap

7
gcc/config/msp430/README.txt Normal file
View file

@ -0,0 +1,7 @@
Random Notes
------------
The MSP430 port does not use leading underscores. However, the
assembler has no way of differentiating between, for example, register
R12 and symbol R12. So, if you do "int r12;" in your C program, you
may get an assembler error, and will certainly have runtime problems.

74
gcc/config/msp430/constraints.md Normal file
View file

@ -0,0 +1,74 @@
;; Machine Description for TI MSP43* processors
;; Copyright (C) 2013 Free Software Foundation, Inc.
;; Contributed by Red Hat.
;; 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
;; <http://www.gnu.org/licenses/>.
(define_register_constraint "R12" "R12_REGS"
"Register R12.")
(define_register_constraint "R13" "R13_REGS"
"Register R13.")
(define_constraint "K"
"Integer constant 1."
(and (match_code "const_int")
(match_test "IN_RANGE (ival, 1, 1)")))
(define_constraint "L"
"Integer constant -1^20..1^19."
(and (match_code "const_int")
(match_test "IN_RANGE (ival, -1 << 20, 1 << 19)")))
(define_constraint "M"
"Integer constant 1-4."
(and (match_code "const_int")
(match_test "IN_RANGE (ival, 1, 4)")))
;; We do not allow arbitrary constants, eg symbols or labels,
;; because their address may be above the 16-bit address limit
;; supported by the offset used in the MOVA instruction.
(define_constraint "Ya"
"Memory reference, any type, but restricted range of constants"
(and (match_code "mem")
(ior (match_code "reg" "0")
(and (match_code "plus" "0")
(match_code "reg" "00")
(match_test ("CONST_INT_P (XEXP (XEXP (op, 0), 1))")))
(match_test "CONSTANT_P (XEXP (op, 0))")
)))
(define_constraint "Yl"
"Memory reference, labels only."
(and (match_code "mem")
(match_code "label_ref" "0")))
;; These are memory references that are safe to use with the X suffix,
;; because we know/assume they need not index across the 64k boundary.
(define_constraint "Ys"
"Memory reference, stack only."
(and (match_code "mem")
(ior
(and (match_code "plus" "0")
(and (match_code "reg" "00")
(match_test ("CONST_INT_P (XEXP (XEXP (op, 0), 1))"))
(match_test ("IN_RANGE (INTVAL (XEXP (XEXP (op, 0), 1)), -1 << 15, (1 << 15)-1)"))))
(match_code "reg" "0")
)))

36
gcc/config/msp430/msp430-c.c Normal file
View file

@ -0,0 +1,36 @@
/* MSP430 C-specific support
Copyright (C) 2013 Free Software Foundation, Inc.
Contributed by Red Hat, 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
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "c-family/c-common.h"
#include "msp430-protos.h"
/* Implements REGISTER_TARGET_PRAGMAS. */
void
msp430_register_pragmas (void)
{
c_register_addr_space ("__near", ADDR_SPACE_NEAR);
if (msp430x)
c_register_addr_space ("__far", ADDR_SPACE_FAR);
}

3
gcc/config/msp430/msp430-modes.def Normal file
View file

@ -0,0 +1,3 @@
/* 20-bit address */
PARTIAL_INT_MODE (SI);

44
gcc/config/msp430/msp430-protos.h Normal file
View file

@ -0,0 +1,44 @@
/* Exported function prototypes from the TI MSP430 backend.
Copyright (C) 2012-2013 Free Software Foundation, Inc.
Contributed by Red Hat.
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
<http://www.gnu.org/licenses/>. */
#ifndef GCC_MSP430_PROTOS_H
#define GCC_MSP430_PROTOS_H
void msp430_expand_eh_return (rtx);
void msp430_expand_epilogue (int);
void msp430_expand_helper (rtx *operands, const char *, bool);
void msp430_expand_prologue (void);
const char * msp430x_extendhisi (rtx *);
void msp430_fixup_compare_operands (enum machine_mode, rtx *);
int msp430_hard_regno_mode_ok (int, enum machine_mode);
int msp430_hard_regno_nregs (int, enum machine_mode);
rtx msp430_incoming_return_addr_rtx (void);
void msp430_init_cumulative_args (CUMULATIVE_ARGS *, tree, rtx, tree, int);
int msp430_initial_elimination_offset (int, int);
const char * msp430x_logical_shift_right (rtx);
void msp430_output_labelref (FILE *, const char *);
void msp430_register_pragmas (void);
rtx msp430_return_addr_rtx (int);
void msp430_split_movsi (rtx *);
rtx msp430_subreg (enum machine_mode, rtx, enum machine_mode, int);
rtx msp430_eh_return_stackadj_rtx (void);
bool msp430_modes_tieable_p (enum machine_mode, enum machine_mode);
#endif /* GCC_MSP430_PROTOS_H */

1746
gcc/config/msp430/msp430.c Normal file
View file

File diff suppressed because it is too large Load diff

399
gcc/config/msp430/msp430.h Normal file
View file

@ -0,0 +1,399 @@
/* GCC backend definitions for the TI MSP430 Processor
Copyright (C) 2012 Free Software Foundation, Inc.
Contributed by Red Hat.
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
<http://www.gnu.org/licenses/>. */
/* Run-time Target Specification */
/* True if the MSP430x extensions are enabled. */
#ifndef IN_LIBGCC2
extern bool msp430x;
#endif
#define TARGET_CPU_CPP_BUILTINS() \
do \
{ \
builtin_define ("__MSP430__"); \
if (msp430x) \
{ \
builtin_define ("__MSP430X__"); \
builtin_assert ("cpu=MSP430X"); \
if (TARGET_LARGE) \
builtin_define ("__MSP430X_LARGE__"); \
} \
else \
builtin_assert ("cpu=MSP430"); \
} \
while (0)
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:crt0.o%s} crtbegin.o%s"
/* -lgcc is included because crtend.o needs __mspabi_func_epilog_1. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC "crtend.o%s crtn.o%s -lgcc"
#define ASM_SPEC "-mP " /* Enable polymorphic instructions. */ \
"%{mmcu=msp430x:-mmcu=msp430X;mmcu=*:-mmcu=%*} " /* Pass the MCU type on to the assembler. */ \
"%{mrelax=-mQ} " /* Pass the relax option on to the assembler. */ \
"%{mlarge:-ml} " /* Tell the assembler if we are building for the LARGE pointer model. */ \
"%{ffunction-sections:-gdwarf-sections}" /* If function sections are being created then create DWARF line number sections as well. */
/* Enable linker section garbage collection by default, unless we
are creating a relocatable binary (gc does not work) or debugging
is enabled (the GDB testsuite relies upon unused entities not being deleted). */
#define LINK_SPEC "%{mrelax:--relax} %{mlarge:%{!r:%{!g:--gc-sections}}}"
#undef LIB_SPEC
#define LIB_SPEC " \
--start-group \
-lc \
-lgcc \
%{msim:-lsim} \
%{!msim:-lnosys} \
--end-group \
%{!T*: %{msim: %{mlarge:%Tmsp430xl-sim.ld}%{!mlarge:%Tmsp430-sim.ld}}%{!msim:%Tmsp430.ld}} \
"
/* Storage Layout */
#define BITS_BIG_ENDIAN 0
#define BYTES_BIG_ENDIAN 0
#define WORDS_BIG_ENDIAN 0
#ifdef IN_LIBGCC2
/* This is to get correct SI and DI modes in libgcc2.c (32 and 64 bits). */
#define UNITS_PER_WORD 4
/* We have a problem with libgcc2. It only defines two versions of
each function, one for "int" and one for "long long". Ie it assumes
that "sizeof (int) == sizeof (long)". For the MSP430 this is not true
and we need a third set of functions. We explicitly define
LIBGCC2_UNITS_PER_WORD here so that it is clear that we are expecting
to get the SI and DI versions from the libgcc2.c sources, and we
provide our own set of HI functions, which is why this
definition is surrounded by #ifndef..#endif. */
#ifndef LIBGCC2_UNITS_PER_WORD
#define LIBGCC2_UNITS_PER_WORD 4
#endif
#else
/* Actual width of a word, in units (bytes). */
#define UNITS_PER_WORD 2
#endif
#define SHORT_TYPE_SIZE 16
#define INT_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 /*DOUBLE_TYPE_SIZE*/
#define LIBGCC2_HAS_DF_MODE 1
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#define DEFAULT_SIGNED_CHAR 0
#define STRICT_ALIGNMENT 1
#define FUNCTION_BOUNDARY 16
#define BIGGEST_ALIGNMENT 16
#define STACK_BOUNDARY 16
#define PARM_BOUNDARY 8
#define PCC_BITFIELD_TYPE_MATTERS 1
#define STACK_GROWS_DOWNWARD 1
#define FRAME_GROWS_DOWNWARD 1
#define FIRST_PARM_OFFSET(FNDECL) 0
#define MAX_REGS_PER_ADDRESS 1
#define Pmode (TARGET_LARGE ? PSImode : HImode)
/* Note: 32 is a lie. Large pointers are actually 20-bits wide. But gcc
thinks that any non-power-of-2 pointer size equates to BLKmode, which
causes all kinds of problems... */
#define POINTER_SIZE (TARGET_LARGE ? 32 : 16)
#define POINTERS_EXTEND_UNSIGNED 1
#define ADDR_SPACE_NEAR 1
#define ADDR_SPACE_FAR 2
#define REGISTER_TARGET_PRAGMAS() msp430_register_pragmas()
#if 1 /* XXX */
/* Define this macro if it is advisable to hold scalars in registers
in a wider mode than that declared by the program. In such cases,
the value is constrained to be within the bounds of the declared
type, but kept valid in the wider mode. The signedness of the
extension may differ from that of the type. */
#define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE) \
if (GET_MODE_CLASS (MODE) == MODE_INT \
&& GET_MODE_SIZE (MODE) < 2) \
(MODE) = HImode;
#endif
/* Layout of Source Language Data Types */
#undef SIZE_TYPE
#define SIZE_TYPE (TARGET_LARGE ? "long unsigned int" : "unsigned int")
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE (TARGET_LARGE ? "long int" : "int")
#undef WCHAR_TYPE
#define WCHAR_TYPE "long int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE BITS_PER_WORD
#define FUNCTION_MODE HImode
#define CASE_VECTOR_MODE Pmode
#define HAS_LONG_COND_BRANCH 0
#define HAS_LONG_UNCOND_BRANCH 0
#define LOAD_EXTEND_OP(M) ZERO_EXTEND
/*#define WORD_REGISTER_OPERATIONS 1*/
#define MOVE_MAX 8
#define STARTING_FRAME_OFFSET 0
#define INCOMING_RETURN_ADDR_RTX \
msp430_incoming_return_addr_rtx ()
#define RETURN_ADDR_RTX(COUNT, FA) \
msp430_return_addr_rtx (COUNT)
#define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
#define SLOW_BYTE_ACCESS 0
/* Register Usage */
/* gas doesn't recognize PC (R0), SP (R1), and SR (R2) as register
names. */
#define REGISTER_NAMES \
{ \
"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", \
"R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15", \
"argptr" \
}
enum reg_class
{
NO_REGS,
R12_REGS,
R13_REGS,
GEN_REGS,
ALL_REGS,
LIM_REG_CLASSES
};
#define REG_CLASS_NAMES \
{ \
"NO_REGS", \
"R12_REGS", \
"R13_REGS", \
"GEN_REGS", \
"ALL_REGS" \
}
#define REG_CLASS_CONTENTS \
{ \
0x00000000, \
0x00001000, \
0x00002000, \
0x0000fff2, \
0x0001ffff \
}
#define GENERAL_REGS GEN_REGS
#define BASE_REG_CLASS GEN_REGS
#define INDEX_REG_CLASS GEN_REGS
#define N_REG_CLASSES (int) LIM_REG_CLASSES
#define PC_REGNUM 0
#define STACK_POINTER_REGNUM 1
#define CC_REGNUM 2
#define FRAME_POINTER_REGNUM 4 /* not usually used, call preserved */
#define ARG_POINTER_REGNUM 16
#define STATIC_CHAIN_REGNUM 5 /* FIXME */
#define FIRST_PSEUDO_REGISTER 17
#define REGNO_REG_CLASS(REGNO) ((REGNO) < 17 \
? GEN_REGS : NO_REGS)
#define TRAMPOLINE_SIZE 4 /* FIXME */
#define TRAMPOLINE_ALIGNMENT 16 /* FIXME */
#define ELIMINABLE_REGS \
{{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \
{ ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM }, \
{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }}
#define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
(OFFSET) = msp430_initial_elimination_offset ((FROM), (TO))
#define FUNCTION_ARG_REGNO_P(N) ((N) >= 8 && (N) < ARG_POINTER_REGNUM)
#define DEFAULT_PCC_STRUCT_RETURN 0
/* 1 == register can't be used by gcc, in general
0 == register can be used by gcc, in general */
#define FIXED_REGISTERS \
{ \
1,0,1,1, 0,0,0,0, \
0,0,0,0, 0,0,0,0, \
1, \
}
/* 1 == value changes across function calls
0 == value is the same after a call */
/* R4 through R10 are callee-saved */
#define CALL_USED_REGISTERS \
{ \
1,0,1,1, 0,0,0,0, \
0,0,0,1, 1,1,1,1, \
1, \
}
#define REG_ALLOC_ORDER \
{ 12, 13, 14, 15, 10, 9, 8, 7, 6, 5, 4, 11, 0, 1, 2, 3, 16 }
/* { 11, 15, 14, 13, 12, 10, 9, 8, 7, 6, 5, 4, 0, 1, 2, 3, 16 }*/
#define REGNO_OK_FOR_BASE_P(regno) 1
#define REGNO_OK_FOR_INDEX_P(regno) 1
typedef struct {
/* These two are the current argument status. */
char reg_used[4];
#define CA_FIRST_REG 12
char can_split;
/* These two are temporaries used internally. */
char start_reg;
char reg_count;
char mem_count;
char special_p;
} CUMULATIVE_ARGS;
#define INIT_CUMULATIVE_ARGS(CA, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
msp430_init_cumulative_args (&CA, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS)
/* FIXME */
#define NO_PROFILE_COUNTERS 1
#define PROFILE_BEFORE_PROLOGUE 1
#define FUNCTION_PROFILER(FILE, LABELNO) \
fprintf (FILE, "\tcall\t__mcount\n");
#define HARD_REGNO_NREGS(REGNO, MODE) \
msp430_hard_regno_nregs (REGNO, MODE)
#define HARD_REGNO_MODE_OK(REGNO, MODE) \
msp430_hard_regno_mode_ok (REGNO, MODE)
#define MODES_TIEABLE_P(MODE1, MODE2) \
msp430_modes_tieable_p (MODE1, MODE2)
/* Exception Handling */
/* R12,R13,R14 - EH data
R15 - stack adjustment */
#define EH_RETURN_DATA_REGNO(N) \
(((N) < 3) ? ((N) + 12) : INVALID_REGNUM)
#define EH_RETURN_HANDLER_RTX \
gen_rtx_MEM(Pmode, gen_rtx_PLUS (Pmode, gen_rtx_REG(Pmode, SP_REGNO), gen_rtx_REG (Pmode, 15)))
#define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 15)
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_udata4
/* Stack Layout and Calling Conventions */
/* Addressing Modes */
#define TEXT_SECTION_ASM_OP ".text"
#define DATA_SECTION_ASM_OP ".data"
#define BSS_SECTION_ASM_OP "\t.section .bss"
#define ASM_COMMENT_START " ;"
#define ASM_APP_ON ""
#define ASM_APP_OFF ""
#define LOCAL_LABEL_PREFIX ".L"
#undef USER_LABEL_PREFIX
#define USER_LABEL_PREFIX ""
#define GLOBAL_ASM_OP "\t.global\t"
#define ASM_OUTPUT_LABELREF(FILE, SYM) msp430_output_labelref ((FILE), (SYM))
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
fprintf (FILE, "\t.long .L%d\n", VALUE)
/* This is how to output an element of a case-vector that is relative.
Note: The local label referenced by the "3b" below is emitted by
the tablejump insn. */
#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
fprintf (FILE, "\t.long .L%d - 1b\n", VALUE)
#define ASM_OUTPUT_ALIGN(STREAM, LOG) \
do \
{ \
if ((LOG) == 0) \
break; \
fprintf (STREAM, "\t.balign %d\n", 1 << (LOG)); \
} \
while (0)
#define JUMP_TABLES_IN_TEXT_SECTION 1
#undef DWARF2_ADDR_SIZE
#define DWARF2_ADDR_SIZE 4
#define INCOMING_FRAME_SP_OFFSET (POINTER_SIZE / BITS_PER_UNIT)
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#define DWARF2_ASM_LINE_DEBUG_INFO 1
/* Prevent reload (and others) from choosing HImode stack slots
when spilling hard registers when they may contain PSImode values. */
#define HARD_REGNO_CALLER_SAVE_MODE(REGNO,NREGS,MODE) \
((TARGET_LARGE && ((NREGS) <= 2)) ? PSImode : choose_hard_reg_mode ((REGNO), (NREGS), false))
/* Also stop GCC from thinking that it can eliminate (SUBREG:PSI (SI)). */
#define CANNOT_CHANGE_MODE_CLASS(FROM,TO,CLASS) \
( ((TO) == PSImode && (FROM) == SImode) \
|| ((TO) == SImode && (FROM) == PSImode) \
|| ((TO) == DImode && (FROM) == PSImode) \
|| ((TO) == PSImode && (FROM) == DImode) \
)
#define ACCUMULATE_OUTGOING_ARGS 1

1229
gcc/config/msp430/msp430.md Normal file
View file

File diff suppressed because it is too large Load diff

26
gcc/config/msp430/msp430.opt Normal file
View file

@ -0,0 +1,26 @@
msim
Target
Use simulator runtime
masm-hex
Target Mask(ASM_HEX)
Force assembly output to always use hex constants
mmcu=
Target Joined RejectNegative Var(target_cpu)
Specify the cpu to build for. If the name begins with 'msp430x' then the 430X instructions are enabled
mlarge
Target Mask(LARGE) RejectNegative
Select large model - 20-bit addresses/pointers
msmall
Target InverseMask(LARGE) RejectNegative
Select small model - 16-bit addresses/pointers (default)
mrelax
Target Report
Optimize opcode sizes at link time
mOs
Target Undocumented Mask(OPT_SPACE)

80
gcc/config/msp430/predicates.md Normal file
View file

@ -0,0 +1,80 @@
;; Machine Description for TI MSP43* processors
;; Copyright (C) 2013 Free Software Foundation, Inc.
;; Contributed by Red Hat.
;; 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
;; <http://www.gnu.org/licenses/>.
(define_predicate "msp_volatile_memory_operand"
(and (match_code "mem")
(match_test ("memory_address_addr_space_p (GET_MODE (op), XEXP (op, 0), MEM_ADDR_SPACE (op))")))
)
; TRUE for any valid general operand. We do this because
; general_operand refuses to match volatile memory refs.
(define_predicate "msp_general_operand"
(ior (match_operand 0 "general_operand")
(match_operand 0 "msp_volatile_memory_operand"))
)
; Likewise for nonimmediate_operand.
(define_predicate "msp_nonimmediate_operand"
(ior (match_operand 0 "nonimmediate_operand")
(match_operand 0 "msp_volatile_memory_operand"))
)
(define_predicate "ubyte_operand"
(and (match_code "const_int")
(match_test "IN_RANGE (INTVAL (op), 0, 255)")))
; TRUE for comparisons we support.
(define_predicate "msp430_cmp_operator"
(match_code "eq,ne,lt,ltu,ge,geu"))
; TRUE for comparisons we need to reverse.
(define_predicate "msp430_reversible_cmp_operator"
(match_code "gt,gtu,le,leu"))
; TRUE for constants the constant generator can produce
(define_predicate "msp430_constgen_operator"
(and (match_code "const_int")
(match_test (" INTVAL (op) == 0
|| INTVAL (op) == 1
|| INTVAL (op) == 2
|| INTVAL (op) == 4
|| INTVAL (op) == 8
|| INTVAL (op) == -1 "))))
; TRUE for constants the constant generator can produce
(define_predicate "msp430_inv_constgen_operator"
(and (match_code "const_int")
(match_test (" INTVAL (op) == ~0
|| INTVAL (op) == ~1
|| INTVAL (op) == ~2
|| INTVAL (op) == ~4
|| INTVAL (op) == ~8
|| INTVAL (op) == ~(-1) "))))
(define_predicate "msp430_nonsubreg_operand"
(match_code "reg,mem"))
; TRUE for constants which are bit positions for zero_extract
(define_predicate "msp430_bitpos"
(and (match_code "const_int")
(match_test (" INTVAL (op) >= 0
&& INTVAL (op) <= 15 "))))

43
gcc/config/msp430/t-msp430 Normal file
View file

@ -0,0 +1,43 @@
# Makefile fragment for building GCC for the TI MSP430 target.
# Copyright (C) 2012-2013 Free Software Foundation, Inc.
# Contributed by Red Hat.
#
# 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
# <http://www.gnu.org/licenses/>.
# Enable multilibs:
MULTILIB_OPTIONS = mmcu=msp430x mlarge
MULTILIB_DIRNAMES = 430x large
# Match msp430X with msp430x.
MULTILIB_MATCHES = mmcu?msp430x=mmcu?msp430X
# each supported MCU needs a line like this:
# MULTILIB_MATCHES += mmcu?msp430x123=mmcu?msp430x
# The only way I figured this out was to hack the script to SHOW me
# what it's doing. It's non-obvious, but it matches the directory
# structure of the multilib tree, but using the options, not the
# directory names. A shell CASE statement is generated from these, so
# the usual CASE wildcards are supported.
MULTILIB_EXCEPTIONS = mlarge
MULTILIB_EXTRA_OPTS =
msp430-c.o: $(srcdir)/config/msp430/msp430-c.c $(RTL_H) $(TREE_H) $(CONFIG_H) $(TM_H)
$(COMPILER) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<

4
gcc/doc/contrib.texi
View file

@ -176,7 +176,7 @@ The @uref{http://www.gnu.org/software/classpath/,,GNU Classpath project}
for all of their merged runtime code.
@item
Nick Clifton for arm, mcore, fr30, v850, m32r, rx work,
Nick Clifton for arm, mcore, fr30, v850, m32r, msp430 rx work,
@option{--help}, and other random hacking.
@item
@ -218,7 +218,7 @@ Mo DeJong for GCJ and libgcj bug fixes.
@item
DJ Delorie for the DJGPP port, build and libiberty maintenance,
various bug fixes, and the M32C, MeP, and RL78 ports.
various bug fixes, and the M32C, MeP, MSP430, and RL78 ports.
@item
Arnaud Desitter for helping to debug GNU Fortran.

7
gcc/doc/install.texi
View file

@ -3989,6 +3989,13 @@ the O32 ABI.
@heading @anchor{moxie-x-elf}moxie-*-elf
The moxie processor.
@html
<hr />
@end html
@heading @anchor{msp430-x-elf}msp430-*-elf
TI MSP430 processor.
This configuration is intended for embedded systems.
@html
<hr />
@end html

46
gcc/doc/invoke.texi
View file

@ -804,6 +804,9 @@ Objective-C and Objective-C++ Dialects}.
@emph{Moxie Options}
@gccoptlist{-meb -mel -mno-crt0}
@emph{MSP430 Options}
@gccoptlist{-msim -masm-hex -mmcu= -mlarge -msmall -mrelax}
@emph{PDP-11 Options}
@gccoptlist{-mfpu -msoft-float -mac0 -mno-ac0 -m40 -m45 -m10 @gol
-mbcopy -mbcopy-builtin -mint32 -mno-int16 @gol
@ -11036,6 +11039,7 @@ platform.
* MMIX Options::
* MN10300 Options::
* Moxie Options::
* MSP430 Options::
* PDP-11 Options::
* picoChip Options::
* PowerPC Options::
@ -16026,7 +16030,7 @@ Link the SDRAM-based runtime instead of the default ROM-based runtime.
@item -msim
@opindex msim
Link the simulator runtime libraries.
Link the simulator run-time libraries.
@item -msimnovec
@opindex msimnovec
@ -17290,6 +17294,46 @@ Do not link in the C run-time initialization object file.
@end table
@node MSP430 Options
@subsection MSP430 Options
@cindex MSP430 Options
These options are defined for the MSP430:
@table @gcctabopt
@item -msim
@opindex msim
Link the simulator runtime libraries.
@item -masm-hex
@opindex masm-hex
Force assembly output to always use hex constants. Normally such
constants are signed decimals, but this option is available for
testsuite and/or aesthetic purposes.
@item -mmcu=
@opindex mmcu=
Select the MCU to target. Note that there are two ``generic'' MCUs,
@code{msp430} and @code{msp430x}, which should be used most of the
time. This option is also passed to the assembler.
@item -mlarge
@opindex mlarge
Use large-model addressing (20-bit pointers, 32-bit @code{size_t}).
@item -msmall
@opindex msmall
Use small-model addressing (16-bit pointers, 16-bit @code{size_t}).
@item -mrelax
@opindex mrelax
This option is passed to the assembler and linker, and allows the
linker to perform certain optimizations that cannot be done until
the final link.
@end table
@node PDP-11 Options
@subsection PDP-11 Options
@cindex PDP-11 Options

29
gcc/doc/md.texi
View file

@ -3063,6 +3063,35 @@ A constant in the range of 0 to @minus{}255.
@end table
@item MSP430--@file{config/msp430/constraints.md}
@table @code
@item R12
Register R12.
@item R13
Register R13.
@item K
Integer constant 1.
@item L
Integer constant -1^20..1^19.
@item M
Integer constant 1-4.
@item Ya
Memory references which do not require an extended MOVX instruction.
@item Yl
Memory reference, labels only.
@item Ys
Memory reference, stack only.
@end table
@item PDP-11---@file{config/pdp11/constraints.md}
@table @code
@item a

5
libgcc/ChangeLog
View file

@ -1,3 +1,8 @@
2013-09-12 DJ Delorie <dj@redhat.com>
* config.host (msp*-*-elf): New.
* config/msp430/: New port.
2013-08-18 Iain Sandoe <iain@codesourcery.com>
PR gcov-profile/58127

3
libgcc/config.host
View file

@ -831,6 +831,9 @@ moxie-*-rtems*)
# Don't use default.
extra_parts=
;;
msp430*-*-elf)
tmake_file="$tm_file t-crtstuff t-fdpbit msp430/t-msp430"
;;
pdp11-*-*)
tmake_file="pdp11/t-pdp11 t-fdpbit"
;;

19
libgcc/config/msp430/cmpd.c Normal file
View file

@ -0,0 +1,19 @@
/* Public domain. */
int
__mspabi_cmpf (float x, float y)
{
if (x < y)
return -1;
if (x > y)
return 1;
return 0;
}
int
__mspabi_cmpd (double x, double y)
{
if (x < y)
return -1;
if (x > y)
return 1;
return 0;
}

98
libgcc/config/msp430/cmpsi2.S Normal file
View file

@ -0,0 +1,98 @@
; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
; Contributed by Red Hat.
;
; 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
; <http://www.gnu.org/licenses/>.
#ifdef __MSP430X_LARGE__
#define ret_ RETA
#else
#define ret_ RET
#endif
.text
;; int __cmpsi2 (signed long A, signed long B)
;;
;; Performs a signed comparison of A and B.
;; If A is less than B it returns 0. If A is greater
;; than B it returns 2. If they are equal it returns 1.
;; Note - this code is also used by the __ucmpsi2 routine below.
.global __cmpsi2
.type __cmpsi2, @function
__cmpsi2:
;; A is in r12 (low), r13 (high)
;; B is in r14 (low), r15 (high)
;; Result put in r12
cmp.w r13, r15
jeq .L_compare_low
jge .L_less_than
.L_greater_than:
mov.w #2, r12
ret_
.L_less_than:
mov.w #0, r12
ret_
.L_compare_low:
cmp.w r12, r14
jl .L_greater_than
jne .L_less_than
mov.w #1, r12
ret_
.size __cmpsi2, . - __cmpsi2
;; int __ucmpsi2 (unsigned long A, unsigned long B)
;;
;; Performs an unsigned comparison of A and B.
;; If A is less than B it returns 0. If A is greater
;; than B it returns 2. If they are equal it returns 1.
;;; Note - this function branches into the __cmpsi2 code above.
.global __ucmpsi2
.type __ucmpsi2, @function
__ucmpsi2:
;; A is in r12 (low), r13 (high)
;; B is in r14 (low), r15 (high)
;; Result put in r12
tst r13
jn .L_top_bit_set_in_A
tst r15
;;; If the top bit of B is set, but A's is clear we know that A < B.
jn .L_less_than
;;; Neither A nor B has their top bit set so we can use the __cmpsi2 routine.
;;; Note we use Jc rather than BR as that saves two bytes. The TST insn always
;;; sets the C bit.
jc __cmpsi2
.L_top_bit_set_in_A:
tst r15
;;; If both A and B have their top bit set we can use the __cmpsi2 routine.
jn __cmpsi2
;;; Otherwise A has its top bit set and B does not so A > B.
jc .L_greater_than
.size __ucmpsi2, . - __ucmpsi2

51
libgcc/config/msp430/epilogue.S Normal file
View file

@ -0,0 +1,51 @@
; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
; Contributed by Red Hat.
;
; 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
; <http://www.gnu.org/licenses/>.
.text
.global __mspabi_func_epilog_7
.global __mspabi_func_epilog_6
.global __mspabi_func_epilog_5
.global __mspabi_func_epilog_4
.global __mspabi_func_epilog_3
.global __mspabi_func_epilog_2
.global __mspabi_func_epilog_1
__mspabi_func_epilog_7:
POP R4
__mspabi_func_epilog_6:
POP R5
__mspabi_func_epilog_5:
POP R6
__mspabi_func_epilog_4:
POP R7
__mspabi_func_epilog_3:
POP R8
__mspabi_func_epilog_2:
POP R9
__mspabi_func_epilog_1:
POP R10
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif

8
libgcc/config/msp430/floathidf.c Normal file
View file

@ -0,0 +1,8 @@
/* Public domain. */
extern double __floatsidf (long);
double
__floathidf (int u)
{
return __floatsidf ((long)u);
}

11
libgcc/config/msp430/floathisf.c Normal file
View file

@ -0,0 +1,11 @@
/* Public domain. */
typedef int HItype __attribute__ ((mode (HI)));
typedef float SFtype __attribute__ ((mode (SF)));
extern SFtype __floatsisf (unsigned long);
SFtype
__floathisf (HItype u)
{
return __floatsisf ((unsigned long)u);
}

12
libgcc/config/msp430/floatunhidf.c Normal file
View file

@ -0,0 +1,12 @@
/* Public domain. */
typedef int HItype __attribute__ ((mode (HI)));
typedef unsigned int UHItype __attribute__ ((mode (HI)));
typedef float DFtype __attribute__ ((mode (DF)));
extern DFtype __floatunsidf (unsigned long);
DFtype
__floatunhidf (UHItype u)
{
return __floatunsidf ((unsigned long)u);
}

12
libgcc/config/msp430/floatunhisf.c Normal file
View file

@ -0,0 +1,12 @@
/* Public domain. */
typedef int HItype __attribute__ ((mode (HI)));
typedef unsigned int UHItype __attribute__ ((mode (HI)));
typedef float SFtype __attribute__ ((mode (SF)));
extern SFtype __floatunsisf (unsigned long);
SFtype
__floatunhisf (UHItype u)
{
return __floatunsisf ((unsigned long)u);
}

50
libgcc/config/msp430/lib2bitcountHI.c Normal file
View file

@ -0,0 +1,50 @@
/* libgcc routines for MSP430
Copyright (C) 2012
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
typedef int sint32_type __attribute__ ((mode (SI)));
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
typedef int sint16_type __attribute__ ((mode (HI)));
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
typedef int sint08_type __attribute__ ((mode (QI)));
typedef unsigned int uint08_type __attribute__ ((mode (QI)));
typedef int word_type __attribute__ ((mode (__word__)));
#define C3B(a,b,c) a##b##c
#define C3(a,b,c) C3B(a,b,c)
/* See the comment by the definition of LIBGCC2_UNITS_PER_WORD in
msp430.h for why we are creating extra versions of some of the
functions defined in libgcc2.c. */
#define LIBGCC2_UNITS_PER_WORD 2
#define L_clzsi2
#define L_ctzsi2
#define L_ffssi2
#define L_paritysi2
#define L_popcountsi2
#include "libgcc2.c"

43
libgcc/config/msp430/lib2divHI.c Normal file
View file

@ -0,0 +1,43 @@
/* HI mode divide routines for libgcc for MSP430
Copyright (C) 2012
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
typedef int sint32_type __attribute__ ((mode (SI)));
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
typedef int sint16_type __attribute__ ((mode (HI)));
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
typedef int sint08_type __attribute__ ((mode (QI)));
typedef unsigned int uint08_type __attribute__ ((mode (QI)));
typedef int word_type __attribute__ ((mode (__word__)));
#define C3B(a,b,c) a##b##c
#define C3(a,b,c) C3B(a,b,c)
#define UINT_TYPE uint16_type
#define SINT_TYPE sint16_type
#define BITS_MINUS_1 15
#define NAME_MODE hi
#include "msp430-divmod.h"

44
libgcc/config/msp430/lib2divQI.c Normal file
View file

@ -0,0 +1,44 @@
/* QI mode divide routines for libgcc for MSP430
Copyright (C) 2012
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
typedef int sint32_type __attribute__ ((mode (SI)));
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
typedef int sint16_type __attribute__ ((mode (HI)));
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
typedef int sint08_type __attribute__ ((mode (QI)));
typedef unsigned int uint08_type __attribute__ ((mode (QI)));
typedef int word_type __attribute__ ((mode (__word__)));
#define C3B(a,b,c) a##b##c
#define C3(a,b,c) C3B(a,b,c)
#define UINT_TYPE uint08_type
#define SINT_TYPE sint08_type
#define BITS_MINUS_1 7
#define NAME_MODE qi
#include "msp430-divmod.h"

43
libgcc/config/msp430/lib2divSI.c Normal file
View file

@ -0,0 +1,43 @@
/* SI mode divide routines for libgcc for MSP430
Copyright (C) 2012
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
typedef int sint32_type __attribute__ ((mode (SI)));
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
typedef int sint16_type __attribute__ ((mode (HI)));
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
typedef int sint08_type __attribute__ ((mode (QI)));
typedef unsigned int uint08_type __attribute__ ((mode (QI)));
typedef int word_type __attribute__ ((mode (__word__)));
#define C3B(a,b,c) a##b##c
#define C3(a,b,c) C3B(a,b,c)
#define UINT_TYPE uint32_type
#define SINT_TYPE sint32_type
#define BITS_MINUS_1 31
#define NAME_MODE si
#include "msp430-divmod.h"

59
libgcc/config/msp430/lib2mul.c Normal file
View file

@ -0,0 +1,59 @@
/* libgcc routines for MSP430
Copyright (C) 2005, 2009, 2011
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
typedef unsigned int uint08_type __attribute__ ((mode (QI)));
#define C3B(a,b,c) a##b##c
#define C3(a,b,c) C3B(a,b,c)
#define UINT_TYPE uint16_type
#define BITS_MINUS_1 15
#define NAME_MODE hi
#include "msp430-mul.h"
#undef UINT_TYPE
#undef BITS_MINUS_1
#undef NAME_MODE
#define UINT_TYPE uint08_type
#define BITS_MINUS_1 7
#define NAME_MODE qi
#include "msp430-mul.h"
#undef UINT_TYPE
#undef BITS_MINUS_1
#undef NAME_MODE
#define UINT_TYPE uint32_type
#define BITS_MINUS_1 31
#define NAME_MODE si
#include "msp430-mul.h"

113
libgcc/config/msp430/lib2shift.c Normal file
View file

@ -0,0 +1,113 @@
/* Shift functions for the GCC support library for the MSP430
Copyright (C) 2011 Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
typedef int sint32_type __attribute__ ((mode (SI)));
typedef unsigned int uint32_type __attribute__ ((mode (SI)));
typedef int sint16_type __attribute__ ((mode (HI)));
typedef unsigned int uint16_type __attribute__ ((mode (HI)));
uint32_type __ashlsi3 (uint32_type in, char bit);
sint32_type __ashrsi3 (sint32_type in, char bit);
int __clrsbhi2 (sint16_type x);
extern int __clrsbsi2 (sint32_type x);
typedef struct
{
union
{
uint32_type u;
uint16_type h[2];
} u;
} dd;
uint32_type
__ashlsi3 (uint32_type in, char bit)
{
uint16_type h, l;
dd d;
if (bit > 32)
return 0;
if (bit < 0)
return in;
d.u.u = in;
h = d.u.h[1];
l = d.u.h[0];
if (bit > 15)
{
h = l;
l = 0;
bit -= 16;
}
while (bit)
{
h = (h << 1) | (l >> 15);
l <<= 1;
bit --;
}
d.u.h[1] = h;
d.u.h[0] = l;
return d.u.u;
}
sint32_type
__ashrsi3 (sint32_type in, char bit)
{
sint16_type h;
uint16_type l;
dd d;
if (bit > 32)
return 0;
if (bit < 0)
return in;
d.u.u = in;
h = d.u.h[1];
l = d.u.h[0];
while (bit)
{
l = (h << 15) | (l >> 1);
h >>= 1;
bit --;
}
d.u.h[1] = h;
d.u.h[0] = l;
return d.u.u;
}
int
__clrsbhi2 (sint16_type x)
{
if (x == 0)
return 15;
return __clrsbsi2 ((sint32_type) x) - 16;
}

15
libgcc/config/msp430/mpy.c Normal file
View file

@ -0,0 +1,15 @@
/* Public domain. */
extern int __mulhi3 (int, int);
int
__mulhi3 (int x, int y)
{
volatile int rv = 0;
while (y > 0)
{
rv += x;
y --;
}
return rv;
}

118
libgcc/config/msp430/msp430-divmod.h Normal file
View file

@ -0,0 +1,118 @@
/* libgcc routines for MSP430
Copyright (C) 2005, 2009, 2011
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
UINT_TYPE C3(udivmod,NAME_MODE,4) (UINT_TYPE, UINT_TYPE, word_type);
SINT_TYPE C3(__div,NAME_MODE,3) (SINT_TYPE, SINT_TYPE);
SINT_TYPE C3(__mod,NAME_MODE,3) (SINT_TYPE, SINT_TYPE);
UINT_TYPE C3(__udiv,NAME_MODE,3) (UINT_TYPE, UINT_TYPE);
UINT_TYPE C3(__umod,NAME_MODE,3) (UINT_TYPE, UINT_TYPE);
UINT_TYPE
C3(udivmod,NAME_MODE,4) (UINT_TYPE num, UINT_TYPE den, word_type modwanted)
{
UINT_TYPE bit = 1;
UINT_TYPE res = 0;
while (den < num && bit && !(den & (1L << BITS_MINUS_1)))
{
den <<= 1;
bit <<= 1;
}
while (bit)
{
if (num >= den)
{
num -= den;
res |= bit;
}
bit >>= 1;
den >>= 1;
}
if (modwanted)
return num;
return res;
}
SINT_TYPE
C3(__div,NAME_MODE,3) (SINT_TYPE a, SINT_TYPE b)
{
word_type neg = 0;
SINT_TYPE res;
if (a < 0)
{
a = -a;
neg = !neg;
}
if (b < 0)
{
b = -b;
neg = !neg;
}
res = C3(udivmod,NAME_MODE,4) (a, b, 0);
if (neg)
res = -res;
return res;
}
SINT_TYPE
C3(__mod,NAME_MODE,3) (SINT_TYPE a, SINT_TYPE b)
{
word_type neg = 0;
SINT_TYPE res;
if (a < 0)
{
a = -a;
neg = 1;
}
if (b < 0)
b = -b;
res = C3(udivmod,NAME_MODE,4) (a, b, 1);
if (neg)
res = -res;
return res;
}
UINT_TYPE
C3(__udiv,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)
{
return C3(udivmod,NAME_MODE,4) (a, b, 0);
}
UINT_TYPE
C3(__umod,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)
{
return C3(udivmod,NAME_MODE,4) (a, b, 1);
}

43
libgcc/config/msp430/msp430-mul.h Normal file
View file

@ -0,0 +1,43 @@
/* libgcc routines for RL78
Copyright (C) 2005, 2009, 2011
Free Software Foundation, Inc.
Contributed by Red Hat.
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/>. */
UINT_TYPE C3(__mul,NAME_MODE,3) (UINT_TYPE, UINT_TYPE);
UINT_TYPE
C3(__mul,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)
{
UINT_TYPE rv = 0;
char bit;
for (bit=0; b && bit<sizeof(UINT_TYPE)*8; bit++)
{
if (b & 1)
rv += a;
a <<= 1;
b >>= 1;
}
return rv;
}

108
libgcc/config/msp430/slli.S Normal file
View file

@ -0,0 +1,108 @@
; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
; Contributed by Red Hat.
;
; 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
; <http://www.gnu.org/licenses/>.
.text
/* Logical Left Shift - R12 -> R12 */
.macro _slli n
.global __mspabi_slli_\n
__mspabi_slli_\n:
ADD.W R12,R12
.endm
_slli 15
_slli 14
_slli 13
_slli 12
_slli 11
_slli 10
_slli 9
_slli 8
_slli 7
_slli 6
_slli 5
_slli 4
_slli 3
_slli 2
_slli 1
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
1: ADD.W #-1,R13
ADD.W R12,R12
.global __mspabi_slli
__mspabi_slli:
CMP #0,R13
JNZ 1b
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
/* Logical Left Shift - R12:R13 -> R12:R13 */
.macro _slll n
.global __mspabi_slll_\n
__mspabi_slll_\n:
ADD.W R12,R12
ADDC.W R13,R13
.endm
_slll 15
_slll 14
_slll 13
_slll 12
_slll 11
_slll 10
_slll 9
_slll 8
_slll 7
_slll 6
_slll 5
_slll 4
_slll 3
_slll 2
_slll 1
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
1: ADD.W #-1,R14
ADD.W R12,R12
ADDC.W R13,R13
.global __mspabi_slll
__mspabi_slll:
CMP #0,R14
JNZ 1b
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif

106
libgcc/config/msp430/srai.S Normal file
View file

@ -0,0 +1,106 @@
; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
; Contributed by Red Hat.
;
; 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
; <http://www.gnu.org/licenses/>.
.text
.macro _srai n
.global __mspabi_srai_\n
__mspabi_srai_\n:
RRA.W R12
.endm
/* Logical Right Shift - R12 -> R12 */
_srai 15
_srai 14
_srai 13
_srai 12
_srai 11
_srai 10
_srai 9
_srai 8
_srai 7
_srai 6
_srai 5
_srai 4
_srai 3
_srai 2
_srai 1
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
1: ADD.W #-1,R13
RRA.W R12,R12
.global __mspabi_srai
__mspabi_srai:
CMP #0,R13
JNZ 1b
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
/* Logical Right Shift - R12:R13 -> R12:R13 */
.macro _sral n
.global __mspabi_sral_\n
__mspabi_sral_\n:
RRA.W R13
RRC.W R12
.endm
_sral 15
_sral 14
_sral 13
_sral 12
_sral 11
_sral 10
_sral 9
_sral 8
_sral 7
_sral 6
_sral 5
_sral 4
_sral 3
_sral 2
_sral 1
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
1: ADD.W #-1,R14
RRA.W R13
RRC.W R12
.global __mspabi_sral
__mspabi_sral:
CMP #0,R14
JNZ 1b
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif

110
libgcc/config/msp430/srli.S Normal file
View file

@ -0,0 +1,110 @@
; Copyright (C) 2012, 2013 Free Software Foundation, Inc.
; Contributed by Red Hat.
;
; 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
; <http://www.gnu.org/licenses/>.
.text
.macro _srli n
.global __mspabi_srli_\n
__mspabi_srli_\n:
CLRC
RRC.W R12
.endm
/* Logical Right Shift - R12 -> R12 */
_srli 15
_srli 14
_srli 13
_srli 12
_srli 11
_srli 10
_srli 9
_srli 8
_srli 7
_srli 6
_srli 5
_srli 4
_srli 3
_srli 2
_srli 1
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
1: ADD.W #-1,R13
CLRC
RRC.W R12,R12
.global __mspabi_srli
__mspabi_srli:
CMP #0,R13
JNZ 1b
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
/* Logical Right Shift - R12:R13 -> R12:R13 */
.macro _srll n
.global __mspabi_srll_\n
__mspabi_srll_\n:
CLRC
RRC.W R13
RRC.W R12
.endm
_srll 15
_srll 14
_srll 13
_srll 12
_srll 11
_srll 10
_srll 9
_srll 8
_srll 7
_srll 6
_srll 5
_srll 4
_srll 3
_srll 2
_srll 1
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif
1: ADD.W #-1,R14
CLRC
RRC.W R13
RRC.W R12
.global __mspabi_srll
__mspabi_srll:
CMP #0,R14
JNZ 1b
#ifdef __MSP430X_LARGE__
RETA
#else
RET
#endif

48
libgcc/config/msp430/t-msp430 Normal file
View file

@ -0,0 +1,48 @@
# Makefile fragment for building LIBGCC for the TI MSP430 processor.
# Copyright (C) 2011 Free Software Foundation, Inc.
# Contributed by Red Hat.
#
# 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
# <http://www.gnu.org/licenses/>.
# Note - we have separate versions of the lib2div<mode> files
# as the functions are quite large and we do not want to pull
# in unneeded division routines.
LIB2ADD = \
$(srcdir)/config/msp430/lib2divQI.c \
$(srcdir)/config/msp430/lib2divHI.c \
$(srcdir)/config/msp430/lib2divSI.c \
$(srcdir)/config/msp430/lib2bitcountHI.c \
$(srcdir)/config/msp430/lib2mul.c \
$(srcdir)/config/msp430/lib2shift.c \
$(srcdir)/config/msp430/epilogue.S \
$(srcdir)/config/msp430/mpy.c \
$(srcdir)/config/msp430/slli.S \
$(srcdir)/config/msp430/srai.S \
$(srcdir)/config/msp430/srli.S \
$(srcdir)/config/msp430/cmpsi2.S \
$(srcdir)/config/msp430/floatunhisf.c \
$(srcdir)/config/msp430/floatunhidf.c \
$(srcdir)/config/msp430/floathidf.c \
$(srcdir)/config/msp430/floathisf.c \
$(srcdir)/config/msp430/cmpd.c
HOST_LIBGCC2_CFLAGS += -Os -ffunction-sections -fdata-sections
# Local Variables:
# mode: Makefile
# End: