Completely rearchitected the sysdeps directory.

 -Erik

libc/sysdeps/Makefile

@@ -0,0 +1,10 @@
+all: linux
+
+linux: dummy
+	make -C linux
+
+clean:
+	rm -f *.o
+	make -C linux clean
+
+.PHONY: dummy

libc/sysdeps/README

@@ -0,0 +1,6 @@
+This directory level abstracts out the UN*X-like Operating System dependent
+features of uC-Libc for all UN*X-like operating systems.  If you wanted to port
+uC-Libc to some other UN*X-like OS, this is the place to add that support.
+
+If you want to port uC-Libc to support some non-UN*X-like Operating System, you
+should probably stop using crack.  It is bad for you.  ;-)

libc/sysdeps/linux/Makefile

@@ -0,0 +1,20 @@
+# Figure out what arch to build...
+
+ARCH = $(shell uname -m | sed -e 's/i.86/i386/' | sed -e 's/sparc.*/sparc/')
+
+all: $(ARCH) common
+
+$(ARCH): dummy
+	echo Building for ARCH=$(ARCH)
+	make -C $(ARCH)
+
+common:	dummy
+	echo Building common stuff
+	make -C common
+
+clean:
+	rm -f *.o
+	make -C common clean
+	make -C $(ARCH) clean
+
+.PHONY: dummy

libc/sysdeps/linux/README

@@ -0,0 +1,7 @@
+This directory level abstracts out the Linux Operating System dependent
+features of uC-Libc for suported Linux architectures/CPUs.  If you wanted to
+port uC-Libc to some new Linux architecture (arm, mips, etc), this is the place
+to add that support.
+
+All the common stuff that is not at all dependent on a particular Linux architecture
+goes in the 'common' directory.

libc/sysdeps/linux/common/Makefile

@@ -0,0 +1,24 @@
+# Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
+# This file is part of the Linux-8086 C library and is distributed
+# under the GNU Library General Public License.
+
+TOPDIR=../../../
+include $(TOPDIR)Rules.make
+
+CFLAGS+= -D_GCC_LIMITS_H_
+
+LIBC=$(TOPDIR)libc.a
+
+include makefile.objs
+
+all: $(LIBC)
+
+$(LIBC): $(OBJ)
+	$(AR) $(ARFLAGS) $@ $(OBJ)
+
+transfer:
+	-@rm -f ../include/stdio.h
+	cp -p stdio.h ../include/.
+
+clean:
+	rm -f *.o

libc/sysdeps/linux/common/getdnnm.c

@@ -0,0 +1,24 @@
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+#include <errno.h>
+
+int
+getdomainname(char *name, size_t len)
+{
+  struct utsname uts;
+
+  if (name == NULL) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  if (uname(&uts) == -1) return -1;
+
+  if (strlen(uts.domainname)+1 > len) {
+    errno = EINVAL;
+    return -1;
+  }
+  strcpy(name, uts.domainname);
+  return 0;
+}

libc/sysdeps/linux/common/gethstnm.c

@@ -0,0 +1,24 @@
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+#include <errno.h>
+
+int
+gethostname(char *name, size_t len)
+{
+  struct utsname uts;
+
+  if (name == NULL) {
+    errno = EINVAL;
+    return -1;
+  }
+
+  if (uname(&uts) == -1) return -1;
+
+  if (strlen(uts.nodename)+1 > len) {
+    errno = EINVAL;
+    return -1;
+  }
+  strcpy(name, uts.nodename);
+  return 0;
+}

libc/sysdeps/linux/common/getpagesize.c

@@ -0,0 +1,38 @@
+/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <unistd.h>
+#include <sys/param.h>
+
+/* Return the system page size.  */
+int getpagesize ()
+{
+#ifdef	EXEC_PAGESIZE
+  return EXEC_PAGESIZE;
+#else	/* No EXEC_PAGESIZE.  */
+#ifdef	NBPG
+#ifndef	CLSIZE
+#define	CLSIZE	1
+#endif	/* No CLSIZE.  */
+  return NBPG * CLSIZE;
+#else	/* No NBPG.  */
+  return NBPC;
+#endif	/* NBPG.  */
+#endif	/* EXEC_PAGESIZE.  */
+}
+

libc/sysdeps/linux/common/kernel_version.c

@@ -0,0 +1,95 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <string.h>
+#include <sys/utsname.h>
+#include <sys/param.h>
+
+static int __linux_kernel_version = -1;
+
+static inline int
+asc2int (const char *s)
+{
+  int result = 0;
+
+  for (; *s >= '0' && *s <= '9'; s++)
+  {
+    result = result * 10 + (*s - '0');
+  }
+
+  return result;
+}
+
+static int
+set_linux_kernel_version (void)
+{
+  struct utsname uts;
+  char *version = NULL, *patchlevel = NULL, *sublevel = NULL;
+
+  if (uname (&uts))
+  {
+    __linux_kernel_version = 0;
+    return __linux_kernel_version;
+  }
+
+  version = uts.release;
+  if (version != NULL)
+  {
+    patchlevel = strchr (version, '.');
+    if (patchlevel != NULL)
+    {
+      *patchlevel = '\0';
+      patchlevel++;
+      sublevel = strchr (patchlevel, '.');
+      if (sublevel != NULL)
+      {
+	*sublevel = '\0';
+	sublevel++;
+      }
+    }
+
+    __linux_kernel_version =
+	GET_LINUX_KERNEL_VERSION (asc2int (version));
+    if (patchlevel != NULL)
+    {
+      __linux_kernel_version |=
+	GET_LINUX_KERNEL_PATCHLEVEL (asc2int (patchlevel));
+    }
+    if (sublevel != NULL)
+    {
+      __linux_kernel_version |=
+	GET_LINUX_KERNEL_SUBLEVEL (asc2int (sublevel));
+    }
+  }
+  else
+  {
+    __linux_kernel_version = 0;
+  }
+
+  return __linux_kernel_version;
+}
+
+int
+__get_linux_kernel_version (void)
+{
+  if (__linux_kernel_version != -1)
+    return __linux_kernel_version;
+    
+  return set_linux_kernel_version ();
+}

libc/sysdeps/linux/common/mkfifo.c

@@ -0,0 +1,34 @@
+/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  
+ 
+   June 28, 2000 -- swiped from GNU libc 2.1.3 and adjusted for uC-Libc
+                    by Erik Andersen <andersee@debian.org>
+ */
+
+#include <errno.h>
+#include <stddef.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+/* Create a named pipe (FIFO) named PATH with protections MODE.  */
+int
+mkfifo (const char *path, mode_t mode)
+{
+  dev_t dev = 0;
+  return mknod (path, mode | S_IFIFO, &dev);
+}

libc/sysdeps/linux/common/setegid.c

@@ -0,0 +1,6 @@
+#include <unistd.h>
+
+int setegid(gid_t gid)
+{
+	return __setregid(-1, gid);
+}

libc/sysdeps/linux/common/seteuid.c

@@ -0,0 +1,22 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+
+int seteuid(uid_t uid)
+{
+  switch (sizeof (uid_t))
+  {
+  case 2:
+    if (uid == 65535)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+    break;
+
+  default:
+    fprintf (stderr, "Uknown uid_t size and sign\n");
+  }
+
+  return setreuid(-1, uid);
+}

libc/sysdeps/linux/common/setpgrp.c

@@ -0,0 +1,11 @@
+#include <syscall.h>
+#include <unistd.h>
+
+static inline
+_syscall2(int,setpgid,pid_t,pid,pid_t,pgid);
+
+int
+setpgrp(void)
+{
+	return setpgid(0,0);
+}

libc/sysdeps/linux/common/tell.c

@@ -0,0 +1,15 @@
+#define lseek __normal_lseek
+#include <unistd.h>
+#include <syscall.h>
+#undef lseek
+
+static inline
+_syscall3(off_t,lseek,int,fildes,off_t,offset,int,origin)
+
+off_t tell(int);
+
+off_t
+tell (int fildes)
+{
+  return lseek (fildes, 0, SEEK_CUR);
+}

libc/sysdeps/linux/common/wait.c

@@ -0,0 +1,12 @@
+#include <syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/resource.h>
+
+static inline
+_syscall4(__pid_t,wait4,__pid_t,pid,__WAIT_STATUS,status,int,options,struct rusage *,ru)
+
+__pid_t wait(__WAIT_STATUS wait_stat)
+{
+	return wait4((-1) /* WAIT_ANY */, wait_stat, 0, NULL);
+}

libc/sysdeps/linux/common/wait3.c

@@ -0,0 +1,12 @@
+#include <syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/resource.h>
+
+static inline
+_syscall4(__pid_t,wait4,__pid_t,pid,__WAIT_STATUS,status,int,options,struct rusage *,ru)
+
+__pid_t wait3(__WAIT_STATUS wait_stat, int options, struct rusage *reserved)
+{
+	return wait4((-1) /* WAIT_ANY*/, wait_stat, options, reserved);
+}

libc/sysdeps/linux/common/waitpid.c

@@ -0,0 +1,13 @@
+#include <syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/resource.h>
+
+static inline
+_syscall4(__pid_t,wait4,__pid_t,pid,__WAIT_STATUS,status,int,options,struct rusage *,ru)
+
+__pid_t
+waitpid(__pid_t pid, int *wait_stat, int options)
+{
+	return wait4(pid, (__WAIT_STATUS) wait_stat, options, NULL);
+}

libc/sysdeps/linux/i386/Makefile

@@ -0,0 +1,29 @@
+# Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>
+# This file is part of the Linux-8086 C library and is distributed
+# under the GNU Library General Public License.
+
+TOPDIR=../../../
+include $(TOPDIR)Rules.make
+
+CFLAGS+= -D_GCC_LIMITS_H_
+
+LIBC=$(TOPDIR)libc.a
+
+.S.s:
+	$(CC) $(CFLAGS) -D__ASSEMBLY__ -traditional -E -o $*.s $<
+.S.o:
+	$(CC) $(CFLAGS) -c -o $*.o $<
+
+include makefile.objs
+
+all: $(LIBC)
+
+$(LIBC): $(OBJ)
+	$(AR) $(ARFLAGS) $@ $(OBJ)
+
+transfer:
+	-@rm -f ../include/stdio.h
+	cp -p stdio.h ../include/.
+
+clean:
+	rm -f *.o

libc/sysdeps/linux/i386/setjmp.S

@@ -0,0 +1,88 @@
+/* These are predefined by new versions of GNU cpp.  */
+
+#ifndef __USER_LABEL_PREFIX__
+#define __USER_LABEL_PREFIX__ _
+#endif
+
+#ifndef __REGISTER_PREFIX__
+#define __REGISTER_PREFIX__
+#endif
+
+/* ANSI concatenation macros.  */
+
+#define CONCAT1(a, b) CONCAT2(a, b)
+#define CONCAT2(a, b) a ## b
+
+/* Use the right prefix for global labels.  */
+
+#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
+
+/* Use the right prefix for registers.  */
+
+#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
+
+#define d0 REG (d0)
+#define d1 REG (d1)
+#define d2 REG (d2)
+#define d3 REG (d3)
+#define d4 REG (d4)
+#define d5 REG (d5)
+#define d6 REG (d6)
+#define d7 REG (d7)
+#define a0 REG (a0)
+#define a1 REG (a1)
+#define a2 REG (a2)
+#define a3 REG (a3)
+#define a4 REG (a4)
+#define a5 REG (a5)
+#define a6 REG (a6)
+#define fp REG (fp)
+#define sp REG (sp)
+
+.global SYM (setjmp)
+.global SYM (longjmp)
+
+SYM (setjmp):
+	moveal sp@(4),a0
+	movel sp@(0),a0@(12)
+	movel sp,a0@(8)
+	moveml d2-d7/a2-a6,a0@(20)
+	clrl d0
+	rts
+
+SYM (longjmp):
+	moveal sp@(4),a0
+	movel sp@(8),d0
+	bne 1f
+	movel #1,d0
+1:
+	moveml a0@(20),d2-d7/a2-a6
+	moveal a0@(8),sp
+	movel a0@(12),sp@
+	rts
+
+#ifdef M68881
+.global SYM (setjmp_68881)
+.global SYM (longjmp_68881)
+
+SYM (setjmp_68881):
+	moveal sp@(4),a0
+	movel sp@(0),a0@(12)
+	movel sp,a0@(8)
+	moveml d2-d7/a2-a6,a0@(20)
+	fmovemx fp2-fp7,a0@(64)
+	clrl d0
+	rts
+
+SYM (longjmp_68881):
+	moveal sp@(4),a0
+	fmovemx a0@(64),fp2-fp7
+	movel sp@(8),d0
+	bne 1f
+	movel #1,d0
+1:
+	moveml a0@(20),d2-d7/a2-a6
+	moveal a0@(8),sp
+	movel a0@(12),sp@
+	rts
+#endif