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Add support for FT32 platform.

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This commit is contained in:
Jeff Johnston 2015-09-04 13:07:00 -04:00
parent 82d7069a5e
commit dc09f27aaa
24 changed files with 5285 additions and 0 deletions
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24
libgloss/ChangeLog
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@ -1,3 +1,27 @@
2015-09-04 James Bowman <james.bowman@ftdichip.com>
* configure.in: Add ft32 support.
* ft32/sbrk.c: New file.
* ft32/sim-close.S: Ditto.
* ft32/sim-exit.S: Ditto.
* ft32/sim-inbyte.c: Ditto.
* ft32/sim.ld: Ditto.
* ft32/sim-lseek.c: Ditto.
* ft32/sim-lseek.S: Ditto.
* ft32/sim-open.S: Ditto.
* ft32/sim-read.S: Ditto.
* ft32/sim-time.c: Ditto.
* ft32/sim-unlink.S: Ditto.
* ft32/sim-write.S: Ditto.
* ft32/stat.c: Ditto.
* ft32/configure.in: Ditto.
* ft32/crt0.S: Ditto.
* ft32/fstat.c: Ditto.
* ft32/getpid.c: Ditto.
* ft32/isatty.c: Ditto.
* ft32/kill.c: Ditto.
* ft32/Makefile.in: Ditto.
2015-08-20 Nick Clifton <nickc@redhat.com>
PR libgloss/18786

3
libgloss/configure.in
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@ -105,6 +105,9 @@ case "${target}" in
frv*-*-*)
AC_CONFIG_SUBDIRS([frv])
;;
ft32*-*-*)
AC_CONFIG_SUBDIRS([ft32])
;;
lm32*-*-*)
AC_CONFIG_SUBDIRS([lm32])
;;

129
libgloss/ft32/Makefile.in Normal file
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@ -0,0 +1,129 @@
# Copyright (C) 2015 FTDI (support@ftdichip.com)
#
# The authors hereby grant permission to use, copy, modify, distribute,
# and license this software and its documentation for any purpose, provided
# that existing copyright notices are retained in all copies and that this
# notice is included verbatim in any distributions. No written agreement,
# license, or royalty fee is required for any of the authorized uses.
# Modifications to this software may be copyrighted by their authors
# and need not follow the licensing terms described here, provided that
# the new terms are clearly indicated on the first page of each file where
# they apply.
# Makefile for libgloss/spro. This is the board support code for the
# ft32 target.
DESTDIR =
VPATH = @srcdir@ @srcdir@/..
srcdir = @srcdir@
objdir = .
srcroot = $(srcdir)/../..
objroot = $(objdir)/../..
prefix = @prefix@
exec_prefix = @exec_prefix@
host_alias = @host_alias@
target_alias = @target_alias@
bindir = @bindir@
libdir = @libdir@
tooldir = $(exec_prefix)/$(target_alias)
# Multilib support variables.
# TOP is used instead of MULTI{BUILD,SRC}TOP.
MULTIDIRS =
MULTISUBDIR =
MULTIDO = true
MULTICLEAN = true
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
SHELL = /bin/sh
CC = @CC@
AS = @AS@
AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
AR_FLAGS = rc
OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \
then echo ${objroot}/../binutils/objdump ; \
else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi`
OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
then echo ${objroot}/../binutils/objcopy ; \
else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
LD_SCRIPTS = ft32-elf-common.ld sim.ld
CRT0 = crt0.o
SIM_BSP = libsim.a
SIM_OBJS = fstat.o \
getpid.o \
isatty.o \
kill.o \
sbrk.o \
sim-close.o \
sim-exit.o \
sim-inbyte.o \
sim-lseek.o \
sim-open.o \
sim-read.o \
sim-time.o \
sim-unlink.o \
sim-write.o \
stat.o
#### Host specific Makefile fragment comes in here.
@host_makefile_frag@
all: $(CRT0) $(SIM_BSP)
$(SIM_BSP): $(SIM_OBJS)
$(AR) $(ARFLAGS) $@ $?
$(RANLIB) $@
fstat.o: $(srcdir)/fstat.c
getpid.o: $(srcdir)/getpid.c
isatty.o: $(srcdir)/isatty.c
kill.o: $(srcdir)/kill.c
putnum.o: $(srcdir)/putnum.c
sbrk.o: $(srcdir)/sbrk.c
sim-close.o: $(srcdir)/sim-close.S
sim-exit.o: $(srcdir)/sim-exit.S
sim-inbyte.o: $(srcdir)/sim-inbyte.c
sim-lseek.o: $(srcdir)/sim-lseek.c
sim-open.o: $(srcdir)/sim-open.S
sim-read.o: $(srcdir)/sim-read.S
sim-time.o: $(srcdir)/sim-time.c
sim-unlink.o: $(srcdir)/sim-unlink.S
sim-write.o: $(srcdir)/sim-write.S
stat.o: $(srcdir)/stat.c
install: $($(CPU)_INSTALL)
$(INSTALL_DATA) $(CRT0) $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/$(CRT0)
$(INSTALL_DATA) $(SIM_BSP) $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/$(SIM_BSP)
for x in ${LD_SCRIPTS}; do \
${INSTALL_DATA} ${srcdir}/$$x $(DESTDIR)${tooldir}/lib/$$x; \
done;
clean mostlyclean:
rm -f *.o *.a
distclean maintainer-clean realclean: clean
rm -f Makefile config.cache config.log config.status
.PHONY: info dvi doc install-info clean-info
info doc dvi:
install-info:
clean-info:
Makefile: Makefile.in config.status @host_makefile_frag_path@
$(SHELL) config.status
config.status: configure
$(SHELL) config.status --recheck

404
libgloss/ft32/aclocal.m4 vendored Normal file
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@ -0,0 +1,404 @@
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3975
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55
libgloss/ft32/configure.in Normal file
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@ -0,0 +1,55 @@
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/* crt0.S -- startup file for FT32
*
* Copyright (c) 2015 FTDI
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
.globl __start
.weak _start
.text
.type __start,@function
__start:
_start:
jmp truestart
jmp truestart
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
reti
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reti
reti
reti
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reti
truestart:
ldk.l $sp, 0xfffc /* set the top of stack */
ldk.l $fp,0 /* zero fp to allow unwinders to stop */
/* Set argc and argv to zero */
ldk.l $r0, 0
ldk.l $r1, 0
sub.l $sp,$sp,24 # room for the args to main
call main
call exit
.Lend:
.size __start,(.Lend-__start)

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/* fstat.c -- get status of a file.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <sys/stat.h>
#include "glue.h"
/*
* fstat -- Since we have no file system, we just return an error.
*/
int
_DEFUN (_fstat, (fd, buf),
int fd _AND
struct stat *buf)
{
buf->st_mode = S_IFCHR; /* Always pretend to be a tty */
buf->st_blksize = 0;
return (0);
}

25
libgloss/ft32/getpid.c Normal file
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/* getpid.c -- get the current process id.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "glue.h"
/*
* getpid -- only one process, so just return 1.
*/
int
_DEFUN (_getpid, (),
)
{
return __MYPID;
}

27
libgloss/ft32/isatty.c Normal file
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/* isatty.c -- chek the terminal device.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "glue.h"
/*
* isatty -- returns 1 if connected to a terminal device,
* returns 0 if not. Since we're hooked up to a
* serial port, we'll say yes _AND return a 1.
*/
int
_DEFUN (_isatty, (fd),
int fd)
{
return (1);
}

30
libgloss/ft32/kill.c Normal file
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/* kill.c -- remove a process.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "glue.h"
extern void _exit (int) __attribute__((__noreturn__));
/*
* kill -- go out via exit...
*/
int
_DEFUN (_kill, (pid, sig),
int pid _AND
int sig)
{
if(pid == __MYPID)
_exit(sig);
return 0;
}

45
libgloss/ft32/sbrk.c Normal file
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/* sbrk.c -- allocate memory dynamically.
*
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <errno.h>
#include "glue.h"
char *__heap_ptr = (char *)&_end;
/*
* sbrk -- changes heap size size. Get nbytes more
* RAM. We just increment a pointer in what's
* left of memory on the board.
*/
char *
_sbrk (nbytes)
int nbytes;
{
char *base;
char *sp;
char canary;
if ((__heap_ptr + nbytes) < (&canary - 2000))
{
base = __heap_ptr;
__heap_ptr += nbytes;
return base;
}
else
{
errno = ENOMEM;
return ((char *)-1);
}
}

37
libgloss/ft32/sim-close.S Normal file
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/*
* sim-close.S -- close interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "syscall.h"
/*
* Input:
* $r0 -- File descriptor to close.
*
* Output:
* $r0 -- 0 or -1.
* errno -- Set if an error
*/
.globl _close
.type _close,@function
.weak close
.text
_close:
close:
# swi SYS_close
return
.Lend:
.size _close,.Lend-_close

34
libgloss/ft32/sim-exit.S Normal file
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/*
* sim-exit.S -- _exit interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "syscall.h"
/*
* Input:
* $r0 -- exit value
*
* Output:
* none
*/
.globl _exit
.type _exit,@function
.text
_exit:
# swi SYS_exit
sta.l 0x1fffc,$r0
.Lend:
.size _exit,.Lend-_exit

26
libgloss/ft32/sim-inbyte.c Normal file
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/*
* sim-inbyte.c -- read a character from standard input.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
int
inbyte ()
{
char c;
if (read (0, &c, 1) <= 0)
return -1;
return c;
}

32
libgloss/ft32/sim-lseek.S Normal file
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/*
* sim-lseek.S -- write interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <sys/types.h>
#include <errno.h>
/*
* lseek -- Since a simulated serial port is non-seekable, we return
* an error.
*/
off_t
_DEFUN (_lseek, (fd, offset, whence),
int fd _AND
off_t offset _AND
int whence)
{
errno = ESPIPE;
return ((off_t)-1);
}

32
libgloss/ft32/sim-lseek.c Normal file
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/*
* sim-lseek.S -- write interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <sys/types.h>
#include <errno.h>
/*
* lseek -- Since a simulated serial port is non-seekable, we return
* an error.
*/
off_t
_DEFUN (_lseek, (fd, offset, whence),
int fd _AND
off_t offset _AND
int whence)
{
/* errno = ESPIPE; */
return ((off_t)-1);
}

39
libgloss/ft32/sim-open.S Normal file
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@ -0,0 +1,39 @@
/*
* sim-open.S -- open interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "syscall.h"
/*
* Input:
* $r0 -- File name to open.
* $r1 -- open mode.
* -0x12($fp) -- optionally, the permission bits to set the file to.
*
* Output:
* $r0 -- file descriptor or -1.
* errno -- Set if an error
*/
.globl _open
.type _open,@function
.weak open
.text
_open:
open:
# swi SYS_open
return
.Lend:
.size _open,.Lend-_open

39
libgloss/ft32/sim-read.S Normal file
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/*
* sim-read.S -- read interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "syscall.h"
/*
* Input:
* $r0 -- File descriptor.
* $r1 -- Buffer to be read into.
* -0x12($fp) -- Length of the buffer.
*
* Output:
* $r0 -- Length read or -1.
* errno -- Set if an error
*/
.globl _read
.type _read,@function
.weak read
.text
_read:
read:
# swi SYS_read
return
.Lend:
.size _read,.Lend-_read

47
libgloss/ft32/sim-time.c Normal file
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/* sim-time.c -- stubs so clock can be linked in.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <errno.h>
#include <sys/time.h>
#include <sys/times.h>
#include "glue.h"
/*
* _times -- no clock, so return an error.
*/
int
_DEFUN (_times, _times (buf),
struct tms *buf)
{
errno = EINVAL;
return (-1);
}
/*
* _gettimeofday -- implement in terms of time, which means we can't return the
* microseconds.
*/
int
_DEFUN (_gettimeofday, _gettimeofday (tv, tz),
struct timeval *tv _AND
void *tzvp)
{
struct timezone *tz = tzvp;
if (tz)
tz->tz_minuteswest = tz->tz_dsttime = 0;
tv->tv_usec = 0;
tv->tv_sec = 0;
return 0;
}

37
libgloss/ft32/sim-unlink.S Normal file
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/*
* sim-unlink.S -- write interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "syscall.h"
.globl _unlink
.type _unlink,@function
.weak unlink
.text
_unlink:
unlink:
return
.Lend:
.size _unlink,.Lend-_unlink
.globl _link
.type _link,@function
.weak link
.text
_link:
link:
return
.Lend1:
.size _link,.Lend1-_link

56
libgloss/ft32/sim-write.S Normal file
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@ -0,0 +1,56 @@
/*
* sim-write.S -- write interface for FT32 simulator
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "syscall.h"
/*
* Input:
* $r0 -- File descriptor.
* $r1 -- String to be printed.
* $r2 -- Length of the string.
*
* Output:
* $r0 -- Length written or -1.
* errno -- Set if an error
*/
.globl _write
.type _write,@function
.weak write
.text
_write:
write:
# LDI.l $r1,$r0,0
# STA.l MAGIC,$r1
# jmp .f
#
# .loop:
# sta.l 0x10000,$r2
# add.l $r0,$r0,1
# .f:
# ldi.b $r2,$r0,0
# cmp.b $r2,0
# jmpc nz,.loop
ldk.l $r3,0x10000
streamout.b $r3,$r1,$r2
move.l $r0,$r2
return
.Lend:
.size _write,.Lend-_write

56
libgloss/ft32/sim.ld Normal file
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@ -0,0 +1,56 @@
OUTPUT_FORMAT("elf32-ft32")
OUTPUT_ARCH(ft32)
SEARCH_DIR(.)
GROUP(-lsim -lc -lgcc -lsim)
MEMORY
{
flash (rx) : ORIGIN = 0, LENGTH = 256K
ram (rw!x) : ORIGIN = 0x800000, LENGTH = 64K
}
SECTIONS
{
.text :
{
*(.text*)
*(.strings)
*(._pm*)
*(.init)
*(.fini)
_etext = . ;
} > flash
.tors :
{
___ctors = . ;
*(.ctors)
___ctors_end = . ;
___dtors = . ;
*(.dtors)
___dtors_end = . ;
} > ram
.data : AT (ADDR (.text) + SIZEOF (.text))
{
*(.data)
*(.rodata)
*(.rodata*)
_edata = . ;
} > ram
.bss SIZEOF(.data) + ADDR(.data) :
{
_bss_start = . ;
*(.bss)
*(COMMON)
_end = . ;
} > ram
__data_load_start = LOADADDR(.data);
__data_load_end = __data_load_start + SIZEOF(.data);
.stab 0 (NOLOAD) :
{
*(.stab)
}
.stabstr 0 (NOLOAD) :
{
*(.stabstr)
}
}

30
libgloss/ft32/stat.c Normal file
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/* stat.c -- Get the status of a file.
*
* Copyright (C) 2015 FTDI (support@ftdichip.com)
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include <sys/stat.h>
#include <errno.h>
#include "glue.h"
/*
* stat -- Since we have no file system, we just return an error.
*/
int
_DEFUN (_stat, (path, buf),
const char *path _AND
struct stat *buf)
{
errno = EIO;
return (-1);
}