From 8bb9fbaeeab32ce61528b39850bb96cc573b5f7a Mon Sep 17 00:00:00 2001 From: Dave Wilkinson II Date: Sat, 3 Apr 2010 03:25:09 -0400 Subject: [PATCH] Adding newlib --- newlib-xomb/newlib/libc/sys/xomb/Makefile.am | 15 + newlib-xomb/newlib/libc/sys/xomb/Makefile.in | 411 ++++++++ newlib-xomb/newlib/libc/sys/xomb/aclocal.m4 | 992 ++++++++++++++++++ newlib-xomb/newlib/libc/sys/xomb/configure.in | 7 + newlib-xomb/newlib/libc/sys/xomb/crt0.c | 23 + newlib-xomb/newlib/libc/sys/xomb/syscalls.c | 199 ++++ 6 files changed, 1647 insertions(+) create mode 100644 newlib-xomb/newlib/libc/sys/xomb/Makefile.am create mode 100644 newlib-xomb/newlib/libc/sys/xomb/Makefile.in create mode 100644 newlib-xomb/newlib/libc/sys/xomb/aclocal.m4 create mode 100644 newlib-xomb/newlib/libc/sys/xomb/configure.in create mode 100644 newlib-xomb/newlib/libc/sys/xomb/crt0.c create mode 100644 newlib-xomb/newlib/libc/sys/xomb/syscalls.c diff --git a/newlib-xomb/newlib/libc/sys/xomb/Makefile.am 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This can happen + # if, for instance, CONFIG_SHELL is bash and it inherits a + # broken ls alias from the environment. This has actually + # happened. Such a system could not be considered "sane". + AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken +alias in your environment]) + fi + + test "$[2]" = conftest.file + ) +then + # Ok. + : +else + AC_MSG_ERROR([newly created file is older than distributed files! +Check your system clock]) +fi +AC_MSG_RESULT(yes)]) + +# Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc. +# +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# AM_PROG_INSTALL_STRIP +# --------------------- +# One issue with vendor `install' (even GNU) is that you can't +# specify the program used to strip binaries. 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We just wanted to have am__tar + # and am__untar set. + test -n "${am_cv_prog_tar_$1}" && break + + # tar/untar a dummy directory, and stop if the command works + rm -rf conftest.dir + mkdir conftest.dir + echo GrepMe > conftest.dir/file + AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) + rm -rf conftest.dir + if test -s conftest.tar; then + AM_RUN_LOG([$am__untar /dev/null 2>&1 && break + fi +done +rm -rf conftest.dir + +AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) +AC_MSG_RESULT([$am_cv_prog_tar_$1])]) +AC_SUBST([am__tar]) +AC_SUBST([am__untar]) +]) # _AM_PROG_TAR + +m4_include([../../../acinclude.m4]) diff --git a/newlib-xomb/newlib/libc/sys/xomb/configure.in b/newlib-xomb/newlib/libc/sys/xomb/configure.in new file mode 100644 index 0000000..9e15348 --- /dev/null +++ b/newlib-xomb/newlib/libc/sys/xomb/configure.in @@ -0,0 +1,7 @@ +AC_PREREQ(2.59) +AC_INIT([newlib], [NEWLIB_VERSION]) +AC_CONFIG_SRCDIR([crt0.c]) +AC_CONFIG_AUX_DIR(../../../..) +NEWLIB_CONFIGURE(../../..) +AC_CONFIG_FILES([Makefile]) +AC_OUTPUT diff --git a/newlib-xomb/newlib/libc/sys/xomb/crt0.c b/newlib-xomb/newlib/libc/sys/xomb/crt0.c new file mode 100644 index 0000000..9f01029 --- /dev/null +++ b/newlib-xomb/newlib/libc/sys/xomb/crt0.c @@ -0,0 +1,23 @@ + +extern int main(int argc, char **argv, char **environ); + +extern char __bss_start, _end; // BSS should be the last think before _end + +// XXX: environment +char *__env[1] = { 0 }; +char **environ = __env; + +_start(){ + char *i; + + // zero BSS + for(i = &__bss_start; i < &_end; i++){ + *i = 0; + } + + + // XXX: get argc and argv + + + exit(main(0,0, __env)); +} diff --git a/newlib-xomb/newlib/libc/sys/xomb/syscalls.c b/newlib-xomb/newlib/libc/sys/xomb/syscalls.c new file mode 100644 index 0000000..ad50d93 --- /dev/null +++ b/newlib-xomb/newlib/libc/sys/xomb/syscalls.c @@ -0,0 +1,199 @@ +#include +#include +#include <_ansi.h> +#include + +// --- Process Control --- + +int +_exit(int val){ + exit(val); + return (-1); +} + +int +execve(char *name, char **argv, char **env) { + errno = ENOMEM; + return -1; +} + +/* + * getpid -- only one process, so just return 1. + */ +#define __MYPID 1 +int +getpid() +{ + return __MYPID; +} + + +int +fork(void) { + errno = ENOTSUP; + return -1; +} + + +/* + * kill -- go out via exit... + */ +int +kill(pid, sig) + int pid; + int sig; +{ + if(pid == __MYPID) + _exit(sig); + + + errno = EINVAL; + return -1; +} + +int +wait(int *status) { + errno = ECHILD; + return -1; +} + +// --- I/O --- + +/* + * 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 +isatty(fd) + int fd; +{ + return (1); +} + + +int +close(int file) { + return -1; +} + +int +link(char *old, char *new) { + errno = EMLINK; + return -1; +} + +int +lseek(int file, int ptr, int dir) { + return 0; +} + +int +open(const char *name, int flags, int mode) { + return -1; +} + +int +read(int file, char *ptr, int len) { + // XXX: keyboard support + + return 0; +} + +int +_stat(int file, struct stat *st) { + st->st_mode = S_IFCHR; + return 0; +} + +int +unlink(char *name) { + errno = ENOENT; + return -1; +} + + +int +write(int file, char *ptr, int len) { + //XXX: write to stdout + + return -1; +} + +// --- Memory --- + +/* _end is set in the linker command file */ +extern caddr_t _end; + +#define PAGE_SIZE 4096ULL +#define PAGE_MASK 0xFFFFFFFFFFFFF000ULL +#define HEAP_ADDR (((unsigned long long)&_end + PAGE_SIZE) & PAGE_MASK) + +/* + * sbrk -- changes heap size size. Get nbytes more + * RAM. We just increment a pointer in what's + * left of memory on the board. + */ +caddr_t +sbrk(int nbytes){ + static caddr_t heap_ptr = NULL; + caddr_t base; + + int temp; + + if(heap_ptr == NULL){ + heap_ptr = (caddr_t)HEAP_ADDR; + } + + base = heap_ptr; + + if(((unsigned long long)heap_ptr & ~PAGE_MASK) != 0ULL){ + temp = (PAGE_SIZE - ((unsigned long long)heap_ptr & ~PAGE_MASK)); + + if( nbytes < temp ){ + heap_ptr += nbytes; + nbytes = 0; + }else{ + heap_ptr += temp; + nbytes -= temp; + } + } + + while(nbytes > PAGE_SIZE){ + allocPage(heap_ptr); + nbytes -= (int) PAGE_SIZE; + heap_ptr = heap_ptr + PAGE_SIZE; + } + + if( nbytes > 0){ + allocPage(heap_ptr); + + heap_ptr += nbytes; + } + + + return base; + /* + static caddr_t heap_ptr = NULL; + caddr_t base; + + if (heap_ptr == NULL) { + heap_ptr = (caddr_t)&_end; + } + + if ((RAMSIZE - heap_ptr) >= 0) { + base = heap_ptr; + heap_ptr += nbytes; + return (base); + } else { + errno = ENOMEM; + return ((caddr_t)-1); + }*/ +} + + +// --- Other --- + +int times(struct tms *buf) { + return -1; +}