New stdio core. Should be more maintainable. Fixes a couple of bugs.

  Codepaths streamlined.  Improved performance for nonthreaded apps
  when linked with a thread-enabled libc.
Minor iconv bug and some locale/thread related startup issues fixed.
  These showed up in getting a gcj-compiled java helloworld app running.
Removed some old extension functions... _stdio_fdout and _stdio_fsfopen.

100 files changed, 8657 insertions, 7225 deletions

diff --git a/libc/stdio/Makefile b/libc/stdio/Makefile
index b0ba70ba8..59e80a359 100644
--- a/libc/stdio/Makefile
+++ b/libc/stdio/Makefile
@@ -2,6 +2,7 @@
 #
 # Copyright (C) 2000 by Lineo, inc.
 # Copyright (C) 2000,2001 Erik Andersen <andersen@uclibc.org>
+# Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
 #
 # This program 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
@@ -25,61 +26,96 @@ TOPDIR=../../
 include $(TOPDIR)Rules.mak
 
 # Note: The *64.o objects are empty when compiled without large file support.
-#
 
-# Note: Use the libpthreads of: flockfile.o ftrylockfile.o funlockfile.o
-#       Also, maybe move __fsetlocking.o as well?
-
-MSRC = stdio.c
-MOBJ = fclose.o fflush.o fopen.o freopen.o perror.o remove.o \
-	setbuf.o setvbuf.o fgetc.o fgets.o fputc.o fputs.o \
-	getc.o getchar.o gets.o putc.o putchar.o puts.o \
-	ungetc.o fread.o fwrite.o fgetpos.o fseek.o fsetpos.o ftell.o \
-	rewind.o clearerr.o feof.o ferror.o \
-	fileno.o fdopen.o getw.o putw.o setbuffer.o setlinebuf.o fcloseall.o \
-	fopen64.o freopen64.o ftello64.o fseeko64.o fsetpos64.o fgetpos64.o \
-	__fbufsize.o __freading.o __fwriting.o __freadable.o __fwritable.o \
-	__flbf.o __fpurge.o __fpending.o _flushlbf.o \
-	 fopencookie.o fmemopen.o open_memstream.o \
-	__fsetlocking.o flockfile.o ftrylockfile.o funlockfile.o \
-	_stdio_fopen.o _stdio_fread.o _stdio_fwrite.o _stdio_adjpos.o \
-	_stdio_lseek.o _stdio_init.o \
-	_stdio_fsfopen.o _stdio_fdout.o _uintmaxtostr.o _stdio_strerror_r.o \
-	getdelim.o getline.o ctermid.o
-
-MSRC2= printf.c
-MOBJ2=  vsnprintf.o vdprintf.o vasprintf.o vprintf.o vsprintf.o \
-	fprintf.o  snprintf.o  dprintf.o  asprintf.o  printf.o  sprintf.o \
-	_store_inttype.o _load_inttype.o
-
-MSRC3=scanf.c
-MOBJ3=scanf.o sscanf.o fscanf.o vscanf.o vsscanf.o vfscanf.o \
-	__scan_cookie.o __psfs_parse_spec.o __psfs_do_numeric.o
+# SUSv3 functions
+CSRC = fclose.c fcloseall.c fdopen.c fgetpos.c fopen.c freopen.c \
+	fseeko.c fsetpos.c ftello.c getdelim.c getline.c gets.c getw.c \
+	perror.c puts.c putw.c remove.c rewind.c setbuf.c setbuffer.c \
+	setlinebuf.c setvbuf.c ungetc.c \
+	printf.c vprintf.c vsprintf.c fprintf.c snprintf.c dprintf.c \
+	asprintf.c sprintf.c vasprintf.c vdprintf.c vsnprintf.c \
+	tmpfile.c tmpnam.c tmpnam_r.c popen.c tempnam.c ctermid.c
+
+# getc -> alias for fgetc
+# putc -> alias for fputc
+# rename is a syscall
+
+# Implementation support functions
+CSRC += _READ.c _WRITE.c _adjust_pos.c _fopen.c _fwrite.c \
+	_rfill.c _stdio.c _trans2r.c _trans2w.c _wcommit.c \
+	_load_inttype.c _store_inttype.c _uintmaxtostr.c
+ifeq ($(strip $(UCLIBC_HAS_FLOATS)),y)
+CSRC += _fpmaxtostr.c
+endif
 
-ifeq ($(UCLIBC_HAS_WCHAR),y)
-	MOBJ += _wstdio_fwrite.o
-	MOBJ2 += fwprintf.o wprintf.o swprintf.o vwprintf.o vswprintf.o \
-		vfwprintf.o
-	MOBJ3 += wscanf.o swscanf.o fwscanf.o vwscanf.o vswscanf.o vfwscanf.o
+# stdio_ext.h functions
+CSRC += __fbufsize.c __flbf.c __fpending.c __fpurge.c __freadable.c \
+	__freading.c __fsetlocking.c __fwritable.c __fwriting.c _flushlbf.c
+
+# Other glibc extensions
+CSRC += fopencookie.c fmemopen.c open_memstream.c _cs_funcs.c
+
+# pthread functions
+ifeq ($(strip $(UCLIBC_HAS_THREADS)),y)
+CSRC += flockfile.c ftrylockfile.c funlockfile.c
 endif
 
+# Functions with unlocked versions
+CUSRC = clearerr.c feof.c ferror.c fflush.c fgetc.c fgets.c fileno.c \
+	fputc.c fputs.c fread.c fwrite.c getchar.c putchar.c
+# getc_unlocked -> alias for fgetc_unlocked
+# putc_unlocked -> alias for fputc_unlocked
+
+# Largefile functions
+CLOBJS = fgetpos64.o fopen64.o freopen64.o fseeko64.o fsetpos64.o ftello64.o
+# tmpfile64.o
+
+# vfprintf and support functions
+MSRC2=	vfprintf.c
 ifneq ($(USE_OLD_VFPRINTF),y)
-	MOBJ2 += _ppfs_init.o _ppfs_prepargs.o _ppfs_setargs.o \
-		 _ppfs_parsespec.o vfprintf.o \
-		 register_printf_function.o parse_printf_format.o
+MOBJ2=	vfprintf.o \
+	_ppfs_init.o _ppfs_prepargs.o _ppfs_setargs.o _ppfs_parsespec.o \
+	register_printf_function.o parse_printf_format.o
+else
+MOBJ2=
+CSRC += old_vfprintf.c
+endif
+
+# vfscanf and support functions plus other *scanf funcs
+MSRC3=	scanf.c
+MOBJ3=	vfscanf.o __scan_cookie.o __psfs_parse_spec.o __psfs_do_numeric.o \
+	scanf.o sscanf.o fscanf.o vscanf.o vsscanf.o
+
+MWSRC=  wstdio.c
+MWOBJ=
+
+CWSRC =
+ifeq ($(UCLIBC_HAS_WCHAR),y)
+CWSRC += _wfwrite.c fwprintf.c swprintf.c vswprintf.c vwprintf.c wprintf.c \
+	fwide.c ungetwc.c
+CUSRC += fgetwc.c getwchar.c fgetws.c fputwc.c putwchar.c fputws.c
+# getwc (fgetwc alias) getwc_unlocked (fgetwc_unlocked alias)
+# putwc (fputwc alias) putwc_unlocked (fputwc_unlocked alias)
+MOBJ2 += vfwprintf.o
+MOBJ3 += wscanf.o swscanf.o fwscanf.o vwscanf.o vswscanf.o vfwscanf.o
 endif
 
-ifeq ($(UCLIBC_HAS_FLOATS),y)
-	MOBJ2 += _fpmaxtostr.o
+CSRC += $(CUSRC)
+
+COBJS  = $(patsubst %.c,%.o, $(CSRC))
+CUOBJS = $(patsubst %.c,%_unlocked.o, $(CUSRC))
+CWOBJS = $(patsubst %.c,%.o, $(CWSRC))
+
+ifeq ($(strip $(UCLIBC_HAS_WCHAR)),y)
+COBJS += $(CWOBJS)
 endif
 
-CSRC=popen.c tmpfile.c tmpnam.c tmpnam_r.c tempnam.c
-ifeq ($(USE_OLD_VFPRINTF),y)
-	CSRC += old_vfprintf.c
+OBJS = $(COBJS) $(CUOBJS) $(MOBJ2) $(MOBJ3) $(MWOBJ)
+
+ifeq ($(strip $(UCLIBC_HAS_LFS)),y)
+OBJS += $(CLOBJS)
 endif
-COBJS=$(patsubst %.c,%.o, $(CSRC))
 
-OBJS=$(MOBJ) $(MOBJ2) $(MOBJ3) $(COBJS)
 
 all: $(OBJS) $(LIBC)
 
@@ -88,9 +124,17 @@ $(LIBC): ar-target
 ar-target: $(OBJS)
 	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
 
-$(MOBJ): $(MSRC)
-	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
-	$(STRIPTOOL) -x -R .note -R .comment $*.o
+$(COBJS): %.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $@
+
+%_unlocked.o : %.c
+	$(CC) $(CFLAGS) -D__DO_UNLOCKED -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $@
+
+%64.o : %.c
+	$(CC) $(CFLAGS) -D__DO_LARGEFILE -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $@
 
 $(MOBJ2): $(MSRC2)
 	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
@@ -100,12 +144,12 @@ $(MOBJ3): $(MSRC3)
 	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
 	$(STRIPTOOL) -x -R .note -R .comment $*.o
 
-$(COBJS): %.o : %.c
-	$(CC) $(CFLAGS) -c $< -o $@
+$(MWOBJ): $(MWSRC)
+	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
 	$(STRIPTOOL) -x -R .note -R .comment $*.o
 
 $(OBJ): Makefile
 
 clean:
-	$(RM) *.[oa] *~ core
+	rm -f *.[oa] *~ core
 
diff --git a/libc/stdio/_READ.c b/libc/stdio/_READ.c
new file mode 100644
index 000000000..7d3c38ce6
--- /dev/null
+++ b/libc/stdio/_READ.c
@@ -0,0 +1,66 @@
+/* Copyright (C) 2004       Manuel Novoa III    <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+/* Given a reading stream without its end-of-file indicator set and
+ * with no buffered input or ungots, read at most 'bufsize' bytes
+ * into 'buf' (which may be the stream's __bufstart).
+ * If a read error occurs, set the stream's error indicator.
+ * If EOF is encountered, set the stream's end-of-file indicator.
+ *
+ * Returns the number of bytes read, even in EOF and error cases.
+ *
+ * Notes:
+ *   Calling with bufsize == 0 is NOT permitted (unlike __stdio_WRITE).
+ *   NOT THREADSAFE!  Assumes stream already locked if necessary.
+ */
+
+size_t __stdio_READ(register FILE *stream,
+					unsigned char *buf, size_t bufsize)
+{
+	ssize_t rv = 0;
+
+	__STDIO_STREAM_VALIDATE(stream);
+	assert(stream->__filedes >= -1);
+	assert(__STDIO_STREAM_IS_READING(stream));
+	assert(!__STDIO_STREAM_BUFFER_RAVAIL(stream)); /* Buffer must be empty. */
+	assert(!(stream->__modeflags & __FLAG_UNGOT));
+	assert(bufsize);
+
+	if (!__FEOF_UNLOCKED(stream)) {
+		if (bufsize > SSIZE_MAX) {
+			bufsize = SSIZE_MAX;
+		}
+
+#ifdef __UCLIBC_MJN3_ONLY__
+#warning EINTR?
+#endif
+/* 	RETRY: */
+		if ((rv = __READ(stream, buf, bufsize)) <= 0) {
+			if (rv == 0) {
+				__STDIO_STREAM_SET_EOF(stream);
+			} else {
+/* 				if (errno == EINTR) goto RETRY; */
+				__STDIO_STREAM_SET_ERROR(stream);
+				rv = 0;
+			}
+#ifdef __UCLIBC_MJN3_ONLY__
+#warning TODO: Make custom stream read return check optional.
+#endif
+#ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__
+		} else {
+			assert(rv <= bufsize);
+			if (rv > bufsize) {	/* Read more than bufsize! */
+				abort();
+			}
+#endif
+		}
+	}
+
+	return rv;
+}
diff --git a/libc/stdio/_WRITE.c b/libc/stdio/_WRITE.c
new file mode 100644
index 000000000..d300d3919
--- /dev/null
+++ b/libc/stdio/_WRITE.c
@@ -0,0 +1,100 @@
+/* Copyright (C) 2004       Manuel Novoa III    <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni.  See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+/* Given a writing stream with no buffered output, write the
+ * data in 'buf' (which may be the stream's bufstart) of size
+ * 'bufsize' to the stream.  If a write error occurs, set the
+ * stream's error indicator and (if buffering) buffer as much
+ * data as possible (FBF) or only up to '\n' (LBF) to implement
+ * "as if fputc()" clause in the standard.
+ *
+ * Returns the number of bytes written and/or buffered.
+ *
+ * Notes:
+ *   Calling with bufsize == 0