[llvm-commits] CVS: llvm/runtime/GCCLibraries/libc/COPYING.LIB LICENSE.TXT LICENSES Makefile README.txt atox.c io.c qsort.c remove.c string.c
Reid Spencer
reid at x10sys.com
Thu Nov 16 19:33:09 PST 2006
Changes in directory llvm/runtime/GCCLibraries/libc:
COPYING.LIB updated: 1.2 -> 1.3
LICENSE.TXT updated: 1.5 -> 1.6
LICENSES updated: 1.2 -> 1.3
Makefile updated: 1.9 -> 1.10
README.txt updated: 1.2 -> 1.3
atox.c updated: 1.3 -> 1.4
io.c updated: 1.2 -> 1.3
qsort.c updated: 1.6 -> 1.7
remove.c updated: 1.3 -> 1.4
string.c updated: 1.10 -> 1.11
---
Log message:
Undo removal of the runtime libraries. While this may have been a bit
premature, these libraries will be going away for the 2.0 release. Other
arrangements for profiling, gc, etc. should be made in the next few months.
---
Diffs of the changes: (+1389 -0)
COPYING.LIB | 510 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
LICENSE.TXT | 17 ++
LICENSES | 219 +++++++++++++++++++++++++
Makefile | 19 ++
README.txt | 4
atox.c | 118 +++++++++++++
io.c | 18 ++
qsort.c | 261 ++++++++++++++++++++++++++++++
remove.c | 51 ++++++
string.c | 172 ++++++++++++++++++++
10 files changed, 1389 insertions(+)
Index: llvm/runtime/GCCLibraries/libc/COPYING.LIB
diff -u /dev/null llvm/runtime/GCCLibraries/libc/COPYING.LIB:1.3
--- /dev/null Thu Nov 16 21:32:44 2006
+++ llvm/runtime/GCCLibraries/libc/COPYING.LIB Thu Nov 16 21:32:33 2006
@@ -0,0 +1,510 @@
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Index: llvm/runtime/GCCLibraries/libc/LICENSE.TXT
diff -u /dev/null llvm/runtime/GCCLibraries/libc/LICENSE.TXT:1.6
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/LICENSE.TXT Thu Nov 16 21:32:33 2006
@@ -0,0 +1,17 @@
+libc
+------------------------------------------------------------------------------
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Index: llvm/runtime/GCCLibraries/libc/LICENSES
diff -u /dev/null llvm/runtime/GCCLibraries/libc/LICENSES:1.3
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/LICENSES Thu Nov 16 21:32:33 2006
@@ -0,0 +1,219 @@
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+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+The DNS resolver code, taken from BIND 4.9.5, is copyrighted both by
+UC Berkeley and by Digital Equipment Corporation. The DEC portions
+are under the following license:
+
+Portions Copyright (C) 1993 by Digital Equipment Corporation.
+
+Permission to use, copy, modify, and distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies, and
+that the name of Digital Equipment Corporation not be used in
+advertising or publicity pertaining to distribution of the document or
+software without specific, written prior permission.
+
+THE SOFTWARE IS PROVIDED ``AS IS'' AND DIGITAL EQUIPMENT CORP.
+DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+The Sun RPC support (from rpcsrc-4.0) is covered by the following
+license:
+
+Copyright (C) 1984, Sun Microsystems, Inc.
+
+Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+unrestricted use provided that this legend is included on all tape media
+and as a part of the software program in whole or part. Users may copy
+or modify Sun RPC without charge, but are not authorized to license or
+distribute it to anyone else except as part of a product or program
+developed by the user.
+
+SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+
+Sun RPC is provided with no support and without any obligation on the
+part of Sun Microsystems, Inc. to assist in its use, correction,
+modification or enhancement.
+
+SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+OR ANY PART THEREOF.
+
+In no event will Sun Microsystems, Inc. be liable for any lost revenue
+or profits or other special, indirect and consequential damages, even if
+Sun has been advised of the possibility of such damages.
+
+
+The following CMU license covers some of the support code for Mach,
+derived from Mach 3.0:
+
+Mach Operating System
+Copyright (C) 1991,1990,1989 Carnegie Mellon University
+All Rights Reserved.
+
+Permission to use, copy, modify and distribute this software and its
+documentation is hereby granted, provided that both the copyright
+notice and this permission notice appear in all copies of the
+software, derivative works or modified versions, and any portions
+thereof, and that both notices appear in supporting documentation.
+
+CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS ``AS IS''
+CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+
+Carnegie Mellon requests users of this software to return to
+
+ Software Distribution Coordinator
+ School of Computer Science
+ Carnegie Mellon University
+ Pittsburgh PA 15213-3890
+
+or Software.Distribution at CS.CMU.EDU any improvements or
+extensions that they make and grant Carnegie Mellon the rights to
+redistribute these changes.
+
+The file if_ppp.h is under the following CMU license:
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ 3. Neither the name of the University nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY AND
+ CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The following license covers the files from Intel's "Highly Optimized
+Mathematical Functions for Itanium" collection:
+
+Intel License Agreement
+
+Copyright (c) 2000, Intel Corporation
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+* The name of Intel Corporation may not be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The files inet/getnameinfo.c and sysdeps/posix/getaddrinfo.c are copyright
+(C) by Craig Metz and are distributed under the following license:
+
+/* The Inner Net License, Version 2.00
+
+ The author(s) grant permission for redistribution and use in source and
+binary forms, with or without modification, of the software and documentation
+provided that the following conditions are met:
+
+0. If you receive a version of the software that is specifically labelled
+ as not being for redistribution (check the version message and/or README),
+ you are not permitted to redistribute that version of the software in any
+ way or form.
+1. All terms of the all other applicable copyrights and licenses must be
+ followed.
+2. Redistributions of source code must retain the authors' copyright
+ notice(s), this list of conditions, and the following disclaimer.
+3. Redistributions in binary form must reproduce the authors' copyright
+ notice(s), this list of conditions, and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+4. [The copyright holder has authorized the removal of this clause.]
+5. Neither the name(s) of the author(s) nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY ITS AUTHORS AND CONTRIBUTORS ``AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ If these license terms cause you a real problem, contact the author. */
Index: llvm/runtime/GCCLibraries/libc/Makefile
diff -u /dev/null llvm/runtime/GCCLibraries/libc/Makefile:1.10
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/Makefile Thu Nov 16 21:32:33 2006
@@ -0,0 +1,19 @@
+##===- runtime/GCCLibraries/libc/Makefile ------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file was developed by the LLVM research group and is distributed under
+# the University of Illinois Open Source License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../../..
+BYTECODE_LIBRARY = 1
+DONT_BUILD_RELINKED = 1
+LIBRARYNAME = c
+BYTECODE_DESTINATION = $(CFERuntimeLibDir)
+
+include $(LEVEL)/Makefile.common
+
+CompileCommonOpts := $(filter-out -pedantic,$(CompileCommonOpts))
+CompileCommonOpts := $(filter-out -Wno-long-long,$(CompileCommonOpts))
Index: llvm/runtime/GCCLibraries/libc/README.txt
diff -u /dev/null llvm/runtime/GCCLibraries/libc/README.txt:1.3
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/README.txt Thu Nov 16 21:32:33 2006
@@ -0,0 +1,4 @@
+This directory contains source files to build the LLVM version of libc.
+
+Currently it is hacked together on a by-demand basis, but someday a proper
+port of libc would be very nice.
Index: llvm/runtime/GCCLibraries/libc/atox.c
diff -u /dev/null llvm/runtime/GCCLibraries/libc/atox.c:1.4
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/atox.c Thu Nov 16 21:32:33 2006
@@ -0,0 +1,118 @@
+//===-- atox.c - Ascii string parsers for LLVM libc Library -------*- C -*-===//
+//
+// A lot of this code is ripped gratuitously from glibc and libiberty.
+//
+//===----------------------------------------------------------------------===//
+
+
+#define isspace(x) ((x) == ' ' || (x) == '\t' || (x) == '\n')
+#define isdigit(x) ((x) >= '0' && (x) <= '9')
+#define isupper(x) ((x) >= 'A' && (x) <= 'Z')
+#define islower(x) ((x) >= 'a' && (x) <= 'z')
+#define isalpha(x) (isupper(x) || islower(x))
+
+#ifndef ULONG_MAX
+#define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF */
+#endif
+
+#ifndef LONG_MAX
+#define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF */
+#endif
+
+#ifndef LONG_MIN
+#define LONG_MIN ((long)(~LONG_MAX)) /* 0x80000000 */
+#endif
+
+#if 0
+/*
+ * Convert a string to a long integer.
+ *
+ * Ignores `locale' stuff. Assumes that the upper and lower case
+ * alphabets and digits are each contiguous.
+ */
+long strtol(const char *nptr, char **endptr, int base) {
+ register const char *s = nptr;
+ register unsigned long acc;
+ register int c;
+ register unsigned long cutoff;
+ register int neg = 0, any, cutlim;
+
+ /*
+ * Skip white space and pick up leading +/- sign if any.
+ * If base is 0, allow 0x for hex and 0 for octal, else
+ * assume decimal; if base is already 16, allow 0x.
+ */
+ do {
+ c = *s++;
+ } while (isspace(c));
+ if (c == '-') {
+ neg = 1;
+ c = *s++;
+ } else if (c == '+')
+ c = *s++;
+ if ((base == 0 || base == 16) &&
+ c == '0' && (*s == 'x' || *s == 'X')) {
+ c = s[1];
+ s += 2;
+ base = 16;
+ }
+ if (base == 0)
+ base = c == '0' ? 8 : 10;
+
+ /*
+ * Compute the cutoff value between legal numbers and illegal
+ * numbers. That is the largest legal value, divided by the
+ * base. An input number that is greater than this value, if
+ * followed by a legal input character, is too big. One that
+ * is equal to this value may be valid or not; the limit
+ * between valid and invalid numbers is then based on the last
+ * digit. For instance, if the range for longs is
+ * [-2147483648..2147483647] and the input base is 10,
+ * cutoff will be set to 214748364 and cutlim to either
+ * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
+ * a value > 214748364, or equal but the next digit is > 7 (or 8),
+ * the number is too big, and we will return a range error.
+ *
+ * Set any if any `digits' consumed; make it negative to indicate
+ * overflow.
+ */
+ cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX;
+ cutlim = cutoff % (unsigned long)base;
+ cutoff /= (unsigned long)base;
+ for (acc = 0, any = 0;; c = *s++) {
+ if (isdigit(c))
+ c -= '0';
+ else if (isalpha(c))
+ c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
+ any = -1;
+ else {
+ any = 1;
+ acc *= base;
+ acc += c;
+ }
+ }
+ if (any < 0) {
+ acc = neg ? LONG_MIN : LONG_MAX;
+ } else if (neg)
+ acc = -acc;
+ if (endptr != 0)
+ *endptr = (char *) (any ? s - 1 : nptr);
+ return (acc);
+}
+
+
+/* Convert a string to an int. */
+int atoi(const char *nptr) {
+ return (int)strtol(nptr, 0, 10);
+}
+
+/* Convert a string to a long int. */
+long int atol(const char *nptr) {
+ return strtol(nptr, 0, 10);
+}
+#endif
Index: llvm/runtime/GCCLibraries/libc/io.c
diff -u /dev/null llvm/runtime/GCCLibraries/libc/io.c:1.3
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/io.c Thu Nov 16 21:32:33 2006
@@ -0,0 +1,18 @@
+//===-- io.c - IO routines for LLVM libc Library ------------------*- C -*-===//
+//
+// A lot of this code is ripped gratuitously from glibc and libiberty.
+//
+//===----------------------------------------------------------------------===//
+
+int putchar(int);
+
+// The puts() function writes the string pointed to by s, followed by a
+// NEWLINE character, to the standard output stream stdout. On success the
+// number of characters written is returned; otherwise they return EOF.
+//
+int puts(const char *S) {
+ const char *Str = S;
+ while (*Str) putchar(*Str++);
+ putchar('\n');
+ return Str+1-S;
+}
Index: llvm/runtime/GCCLibraries/libc/qsort.c
diff -u /dev/null llvm/runtime/GCCLibraries/libc/qsort.c:1.7
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/qsort.c Thu Nov 16 21:32:33 2006
@@ -0,0 +1,261 @@
+//===-- qsort.c - The qsort function for the LLVM libc Library ----*- C -*-===//
+//
+// This code is a modified form of the qsort() function from the GNU C
+// library.
+//
+// Modifications:
+// 2003/05/29 - Code disabled for compilation. Line wrapping changed.
+//
+//===----------------------------------------------------------------------===//
+
+/* Copyright (C) 1991, 1992, 1996, 1997, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Written by Douglas C. Schmidt (schmidt at ics.uci.edu).
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* If you consider tuning this algorithm, you should consult first:
+ Engineering a sort function; Jon Bentley and M. Douglas McIlroy;
+ Software - Practice and Experience; Vol. 23 (11), 1249-1265, 1993. */
+
+#if 0
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Byte-wise swap two items of size SIZE. */
+#define SWAP(a, b, size) \
+ do \
+ { \
+ register size_t __size = (size); \
+ register char *__a = (a), *__b = (b); \
+ do \
+ { \
+ char __tmp = *__a; \
+ *__a++ = *__b; \
+ *__b++ = __tmp; \
+ } while (--__size > 0); \
+ } while (0)
+
+/* Discontinue quicksort algorithm when partition gets below this size.
+ This particular magic number was chosen to work best on a Sun 4/260. */
+#define MAX_THRESH 4
+
+/* Stack node declarations used to store unfulfilled partition obligations. */
+typedef struct
+ {
+ char *lo;
+ char *hi;
+ } stack_node;
+
+/* The next 4 #defines implement a very fast in-line stack abstraction. */
+/* The stack needs log (total_elements) entries (we could even subtract
+ log(MAX_THRESH)). Since total_elements has type size_t, we get as
+ upper bound for log (total_elements):
+ bits per byte (CHAR_BIT) * sizeof(size_t). */
+#define STACK_SIZE (CHAR_BIT * sizeof(size_t))
+#define PUSH(low, high) ((void) ((top->lo = (low)), (top->hi = (high)), ++top))
+#define POP(low, high) ((void) (--top, (low = top->lo), (high = top->hi)))
+#define STACK_NOT_EMPTY (stack < top)
+
+
+/* Order size using quicksort. This implementation incorporates
+ four optimizations discussed in Sedgewick:
+
+ 1. Non-recursive, using an explicit stack of pointer that store the
+ next array partition to sort. To save time, this maximum amount
+ of space required to store an array of SIZE_MAX is allocated on the
+ stack. Assuming a 32-bit (64 bit) integer for size_t, this needs
+ only 32 * sizeof(stack_node) == 256 bytes (for 64 bit: 1024 bytes).
+ Pretty cheap, actually.
+
+ 2. Chose the pivot element using a median-of-three decision tree.
+ This reduces the probability of selecting a bad pivot value and
+ eliminates certain extraneous comparisons.
+
+ 3. Only quicksorts TOTAL_ELEMS / MAX_THRESH partitions, leaving
+ insertion sort to order the MAX_THRESH items within each partition.
+ This is a big win, since insertion sort is faster for small, mostly
+ sorted array segments.
+
+ 4. The larger of the two sub-partitions is always pushed onto the
+ stack first, with the algorithm then concentrating on the
+ smaller partition. This *guarantees* no more than log (total_elems)
+ stack size is needed (actually O(1) in this case)! */
+
+typedef int(*__compar_fn_t)(const void *, const void *);
+void
+qsort (void *const pbase, size_t total_elems, size_t size,
+ __compar_fn_t cmp)
+{
+ register char *base_ptr = (char *) pbase;
+
+ const size_t max_thresh = MAX_THRESH * size;
+
+ if (total_elems == 0)
+ /* Avoid lossage with unsigned arithmetic below. */
+ return;
+
+ if (total_elems > MAX_THRESH)
+ {
+ char *lo = base_ptr;
+ char *hi = &lo[size * (total_elems - 1)];
+ stack_node stack[STACK_SIZE];
+ stack_node *top = stack + 1;
+
+ while (STACK_NOT_EMPTY)
+ {
+ char *left_ptr;
+ char *right_ptr;
+
+ /* Select median value from among LO, MID, and HI. Rearrange
+ LO and HI so the three values are sorted. This lowers the
+ probability of picking a pathological pivot value and
+ skips a comparison for both the LEFT_PTR and RIGHT_PTR in
+ the while loops. */
+
+ char *mid = lo + size * ((hi - lo) / size >> 1);
+
+ if ((*cmp) ((void *) mid, (void *) lo) < 0)
+ SWAP (mid, lo, size);
+ if ((*cmp) ((void *) hi, (void *) mid) < 0)
+ SWAP (mid, hi, size);
+ else
+ goto jump_over;
+ if ((*cmp) ((void *) mid, (void *) lo) < 0)
+ SWAP (mid, lo, size);
+ jump_over:;
+
+ left_ptr = lo + size;
+ right_ptr = hi - size;
+
+ /* Here's the famous ``collapse the walls'' section of quicksort.
+ Gotta like those tight inner loops! They are the main reason
+ that this algorithm runs much faster than others. */
+ do
+ {
+ while ((*cmp) ((void *) left_ptr, (void *) mid) < 0)
+ left_ptr += size;
+
+ while ((*cmp) ((void *) mid, (void *) right_ptr) < 0)
+ right_ptr -= size;
+
+ if (left_ptr < right_ptr)
+ {
+ SWAP (left_ptr, right_ptr, size);
+ if (mid == left_ptr)
+ mid = right_ptr;
+ else if (mid == right_ptr)
+ mid = left_ptr;
+ left_ptr += size;
+ right_ptr -= size;
+ }
+ else if (left_ptr == right_ptr)
+ {
+ left_ptr += size;
+ right_ptr -= size;
+ break;
+ }
+ }
+ while (left_ptr <= right_ptr);
+
+ /* Set up pointers for next iteration. First determine whether
+ left and right partitions are below the threshold size. If so,
+ ignore one or both. Otherwise, push the larger partition's
+ bounds on the stack and continue sorting the smaller one. */
+
+ if ((size_t) (right_ptr - lo) <= max_thresh)
+ {
+ if ((size_t) (hi - left_ptr) <= max_thresh)
+ /* Ignore both small partitions. */
+ POP (lo, hi);
+ else
+ /* Ignore small left partition. */
+ lo = left_ptr;
+ }
+ else if ((size_t) (hi - left_ptr) <= max_thresh)
+ /* Ignore small right partition. */
+ hi = right_ptr;
+ else if ((right_ptr - lo) > (hi - left_ptr))
+ {
+ /* Push larger left partition indices. */
+ PUSH (lo, right_ptr);
+ lo = left_ptr;
+ }
+ else
+ {
+ /* Push larger right partition indices. */
+ PUSH (left_ptr, hi);
+ hi = right_ptr;
+ }
+ }
+ }
+
+ /* Once the BASE_PTR array is partially sorted by quicksort the rest
+ is completely sorted using insertion sort, since this is efficient
+ for partitions below MAX_THRESH size. BASE_PTR points to the beginning
+ of the array to sort, and END_PTR points at the very last element in
+ the array (*not* one beyond it!). */
+
+#define min(x, y) ((x) < (y) ? (x) : (y))
+
+ {
+ char *const end_ptr = &base_ptr[size * (total_elems - 1)];
+ char *tmp_ptr = base_ptr;
+ char *thresh = min(end_ptr, base_ptr + max_thresh);
+ register char *run_ptr;
+
+ /* Find smallest element in first threshold and place it at the
+ array's beginning. This is the smallest array element,
+ and the operation speeds up insertion sort's inner loop. */
+
+ for (run_ptr = tmp_ptr + size; run_ptr <= thresh; run_ptr += size)
+ if ((*cmp) ((void *) run_ptr, (void *) tmp_ptr) < 0)
+ tmp_ptr = run_ptr;
+
+ if (tmp_ptr != base_ptr)
+ SWAP (tmp_ptr, base_ptr, size);
+
+ /* Insertion sort, running from left-hand-side up to right-hand-side. */
+
+ run_ptr = base_ptr + size;
+ while ((run_ptr += size) <= end_ptr)
+ {
+ tmp_ptr = run_ptr - size;
+ while ((*cmp) ((void *) run_ptr, (void *) tmp_ptr) < 0)
+ tmp_ptr -= size;
+
+ tmp_ptr += size;
+ if (tmp_ptr != run_ptr)
+ {
+ char *trav;
+
+ trav = run_ptr + size;
+ while (--trav >= run_ptr)
+ {
+ char c = *trav;
+ char *hi, *lo;
+
+ for (hi = lo = trav; (lo -= size) >= tmp_ptr; hi = lo)
+ *hi = *lo;
+ *hi = c;
+ }
+ }
+ }
+ }
+}
+#endif
Index: llvm/runtime/GCCLibraries/libc/remove.c
diff -u /dev/null llvm/runtime/GCCLibraries/libc/remove.c:1.4
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/remove.c Thu Nov 16 21:32:33 2006
@@ -0,0 +1,51 @@
+//===-- remove.c - The remove function for the LLVM libc Library --*- C -*-===//
+//
+// This code is a modified form of the remove() function from the GNU C
+// library.
+//
+// Modifications:
+// 2005/11/28 - Added to LLVM tree. Functions renamed to allow compilation.
+// Code to control symbol linkage types removed.
+//
+//===----------------------------------------------------------------------===//
+
+/* ANSI C `remove' function to delete a file or directory. POSIX.1 version.
+ Copyright (C) 1995,96,97,2002 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 Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int
+remove (const char * file)
+{
+ int save;
+
+ save = errno;
+ if (rmdir (file) == 0)
+ return 0;
+ else if (errno == ENOTDIR && unlink (file) == 0)
+ {
+ errno = (save);
+ return 0;
+ }
+
+ return -1;
+}
+
Index: llvm/runtime/GCCLibraries/libc/string.c
diff -u /dev/null llvm/runtime/GCCLibraries/libc/string.c:1.11
--- /dev/null Thu Nov 16 21:33:09 2006
+++ llvm/runtime/GCCLibraries/libc/string.c Thu Nov 16 21:32:33 2006
@@ -0,0 +1,172 @@
+//===-- string.c - String functions for the LLVM libc Library -----*- C -*-===//
+//
+// A lot of this code is ripped gratuitously from glibc and libiberty.
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef strlen
+#undef strlen
+#endif
+size_t strlen(const char *Str) {
+ size_t Count = 0;
+ while (*Str) { ++Count; ++Str; }
+ return Count;
+}
+
+#ifdef strdup
+#undef strdup
+#endif
+char *strdup(const char *str) {
+ size_t Len = strlen(str);
+ char *Result = (char*)malloc((Len+1)*sizeof(char));
+ memcpy(Result, str, Len+1);
+ return Result;
+}
+
+#ifdef strndup
+#undef strndup
+#endif
+char *strndup(const char *str, size_t n) {
+ size_t Len = strlen(str);
+ if (Len > n) Len = n;
+ char *Result = (char*)malloc((Len+1)*sizeof(char));
+ memcpy(Result, str, Len);
+ Result[Len] = 0;
+ return Result;
+}
+
+#ifdef strcpy
+#undef strcpy
+#endif
+char *strcpy(char *s1, const char *s2) {
+ char *dest = s1;
+ while ((*s1++ = *s2++));
+ return dest;
+}
+
+#ifdef strncpy
+#undef strncpy
+#endif
+char *strncpy(char *s1, const char *s2, size_t n) {
+ char *dest = s1;
+ while (n-- && (*s1++ = *s2++));
+ return dest;
+}
+
+#ifdef strcat
+#undef strcat
+#endif
+char *strcat(char *s1, const char *s2) {
+ strcpy(s1+strlen(s1), s2);
+ return s1;
+}
+
+
+#ifdef strcmp
+#undef strcmp
+#endif
+/* Compare S1 and S2, returning less than, equal to or
+ greater than zero if S1 is lexicographically less than,
+ equal to or greater than S2. */
+int strcmp (const char *p1, const char *p2) {
+ register const unsigned char *s1 = (const unsigned char *) p1;
+ register const unsigned char *s2 = (const unsigned char *) p2;
+ unsigned char c1, c2;
+
+ do
+ {
+ c1 = (unsigned char) *s1++;
+ c2 = (unsigned char) *s2++;
+ if (c1 == '\0')
+ return c1 - c2;
+ }
+ while (c1 == c2);
+
+ return c1 - c2;
+}
+
+// http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sysdeps/generic/?cvsroot=glibc
+#if 0
+typedef unsigned int op_t;
+#define OPSIZ 4
+
+void *memset (void *dstpp, int c, size_t len) {
+ long long int dstp = (long long int) dstpp;
+
+ if (len >= 8)
+ {
+ size_t xlen;
+ op_t cccc;
+
+ cccc = (unsigned char) c;
+ cccc |= cccc << 8;
+ cccc |= cccc << 16;
+ if (OPSIZ > 4)
+ /* Do the shift in two steps to avoid warning if long has 32 bits. */
+ cccc |= (cccc << 16) << 16;
+
+ /* There are at least some bytes to set.
+ No need to test for LEN == 0 in this alignment loop. */
+ while (dstp % OPSIZ != 0)
+ {
+ ((unsigned char *) dstp)[0] = c;
+ dstp += 1;
+ len -= 1;
+ }
+
+ /* Write 8 `op_t' per iteration until less than 8 `op_t' remain. */
+ xlen = len / (OPSIZ * 8);
+ while (xlen > 0)
+ {
+ ((op_t *) dstp)[0] = cccc;
+ ((op_t *) dstp)[1] = cccc;
+ ((op_t *) dstp)[2] = cccc;
+ ((op_t *) dstp)[3] = cccc;
+ ((op_t *) dstp)[4] = cccc;
+ ((op_t *) dstp)[5] = cccc;
+ ((op_t *) dstp)[6] = cccc;
+ ((op_t *) dstp)[7] = cccc;
+ dstp += 8 * OPSIZ;
+ xlen -= 1;
+ }
+ len %= OPSIZ * 8;
+
+ /* Write 1 `op_t' per iteration until less than OPSIZ bytes remain. */
+ xlen = len / OPSIZ;
+ while (xlen > 0)
+ {
+ ((op_t *) dstp)[0] = cccc;
+ dstp += OPSIZ;
+ xlen -= 1;
+ }
+ len %= OPSIZ;
+ }
+
+ /* Write the last few bytes. */
+ while (len > 0)
+ {
+ ((unsigned char *) dstp)[0] = c;
+ dstp += 1;
+ len -= 1;
+ }
+
+ return dstpp;
+}
+#endif
+
+#ifdef memcpy
+#undef memcpy
+#endif
+void *memcpy(void *dstpp, const void *srcpp, size_t len) {
+ char *dstp = (char*)dstpp;
+ char *srcp = (char*) srcpp;
+ unsigned i;
+
+ for (i = 0; i < len; ++i)
+ dstp[i] = srcp[i];
+
+ return dstpp;
+}
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