toolchain/uClibc: push some upstream patches for uClibc-0.9.31. should resolve isses of #8269

SVN-Revision: 24029
This commit is contained in:
Alexandros C. Couloumbis 2010-11-18 14:58:37 +00:00
parent f9d20beed7
commit eb45bb90d4
6 changed files with 197 additions and 0 deletions

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From d4ede2b0a4727c1f5236dd9308f09cbf7a39761a Mon Sep 17 00:00:00 2001
From: Timo Teräs <timo.teras@iki.fi>
Date: Tue, 13 Apr 2010 06:38:59 +0000
Subject: linuxthreads.new: initialize stdio locking
uClibc requires the threading library to enable locking for
stdio, or the locking is not done at all.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
---
diff --git a/libpthread/linuxthreads/pthread.c b/libpthread/linuxthreads/pthread.c
index 6ae9a10..614cad1 100644
--- a/libpthread/linuxthreads/pthread.c
+++ b/libpthread/linuxthreads/pthread.c
@@ -613,6 +613,17 @@ static void pthread_initialize(void)
#ifdef USE_TLS
GL(dl_init_static_tls) = &__pthread_init_static_tls;
#endif
+
+ /* uClibc-specific stdio initialization for threads. */
+ {
+ FILE *fp;
+ _stdio_user_locking = 0; /* 2 if threading not initialized */
+ for (fp = _stdio_openlist; fp != NULL; fp = fp->__nextopen) {
+ if (fp->__user_locking != 1) {
+ fp->__user_locking = 0;
+ }
+ }
+ }
}
void __pthread_initialize(void)

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From a115ee502fca8b1eb8ce327d764562d3ae669954 Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Mon, 12 Apr 2010 13:09:25 +0000
Subject: attribute_optimize: fix typo with args
curious how 308f5c6e5fd56ea3d1a5512e34388aad788f1180 ever worked.. :P
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 2729d30..4615a6a 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -86,9 +86,9 @@
#endif
#if defined __GNUC__ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-# define attribute_optimize(lvl) __attribute__ ((optimize(x)))
+# define attribute_optimize(x) __attribute__ ((optimize(x)))
#else
-# define attribute_optimize(lvl)
+# define attribute_optimize(x)
#endif
#define attribute_unused __attribute__ ((unused))

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From afd7606ca42a2586b8823c7bd1a4a7cfd2476e3b Mon Sep 17 00:00:00 2001
From: Steven J. Magnani <steve@digidescorp.com>
Date: Wed, 09 Jun 2010 14:02:21 +0000
Subject: malloc-simple: Make calloc() return zeroed memory
The 0.9.31 release included a change to malloc-simple to request
uninitialized memory from noMMU kernels. Unfortunately, the corresponding
calloc() code assumed that memory returned by malloc() was already zeroed,
which leads to all kinds of nastiness.
Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
diff --git a/libc/stdlib/malloc-simple/alloc.c b/libc/stdlib/malloc-simple/alloc.c
index 51da14a..914c89d 100644
--- a/libc/stdlib/malloc-simple/alloc.c
+++ b/libc/stdlib/malloc-simple/alloc.c
@@ -60,11 +60,10 @@ void * calloc(size_t nmemb, size_t lsize)
__set_errno(ENOMEM);
return NULL;
}
- result=malloc(size);
-#if 0
- /* Standard unix mmap using /dev/zero clears memory so calloc
- * doesn't need to actually zero anything....
- */
+ result = malloc(size);
+
+#ifndef __ARCH_USE_MMU__
+ /* mmap'd with MAP_UNINITIALIZE, we have to blank memory ourselves */
if (result != NULL) {
memset(result, 0, size);
}

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From f6651fa449e1d4bbbb466b091f34e6752f6506f9 Mon Sep 17 00:00:00 2001
From: David A Ramos <daramos@gustav.stanford.edu>
Date: Tue, 27 Jul 2010 11:10:15 +0000
Subject: Fix ctime() standard compliance bug
fixes issue2209:
ctime() was updated in 0.9.31 to call localtime_r() instead of
localtime() to
avoid using a static buffer. Unfortunately, this change replaces the
static
buffer (which is zeroed out on initialization) with an uninitialized
local
buffer.
In the common case, this has no effect. However, with a sufficiently
large
time_t value, the value returned differs from that returned by
asctime(localtime(t)), and thus violates the ANSI/ISO standard.
An example input is (on a 64-bit machine):
time_t t = 0x7ffffffffff6c600;
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
diff --git a/libc/misc/time/time.c b/libc/misc/time/time.c
index dfa8c0d..0d12bf3 100644
--- a/libc/misc/time/time.c
+++ b/libc/misc/time/time.c
@@ -479,6 +479,7 @@ char *ctime(const time_t *t)
* localtime's static buffer:
*/
struct tm xtm;
+ memset(&xtm, 0, sizeof(xtm));
return asctime(localtime_r(t, &xtm));
}
diff --git a/test/time/tst-ctime.c b/test/time/tst-ctime.c
new file mode 100644
index 0000000..91d827a
--- a/dev/null
+++ b/test/time/tst-ctime.c
@@ -0,0 +1,44 @@
+/* vi: set sw=4 ts=4: */
+/* testcase for ctime(3) with large time
+ * Copyright (C) 2010 David A Ramos <daramos@gustav.stanford.edu>
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define MAX_POSITIVE(type) (~0 & ~((type) 1 << (sizeof(type)*8 - 1)))
+
+int do_test(int argc, char **argv) {
+ char *correct = 0, *s;
+ int status;
+
+ /* need a very high positive number (e.g., max - 1024) */
+ time_t test = MAX_POSITIVE(time_t) - 1024;
+
+ s = asctime(localtime(&test));
+
+ if (s) {
+ // copy static buffer to heap
+ correct = malloc(strlen(s)+1);
+ strcpy(correct, s);
+ }
+
+ s = ctime(&test);
+
+ printf("ANSI:\t%suClibc:\t%s", correct, s);
+
+ if (s != correct && strcmp(correct, s))
+ status = EXIT_FAILURE;
+ else
+ status = EXIT_SUCCESS;
+
+ if (correct)
+ free(correct);
+
+ return status;
+}
+
+#include <test-skeleton.c>

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From ac86be72f8b01ac3792737f4b67283541cf2c15b Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Tue, 27 Jul 2010 15:05:59 +0000
Subject: remove trailing comma in enum
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
diff --git a/libc/sysdeps/linux/common/bits/confname.h b/libc/sysdeps/linux/common/bits/confname.h
index ec4b72a..97ddd47 100644
--- a/libc/sysdeps/linux/common/bits/confname.h
+++ b/libc/sysdeps/linux/common/bits/confname.h
@@ -527,7 +527,7 @@ enum
_SC_THREAD_ROBUST_PRIO_INHERIT,
#define _SC_THREAD_ROBUST_PRIO_INHERIT _SC_THREAD_ROBUST_PRIO_INHERIT
- _SC_THREAD_ROBUST_PRIO_PROTECT,
+ _SC_THREAD_ROBUST_PRIO_PROTECT
#define _SC_THREAD_ROBUST_PRIO_PROTECT _SC_THREAD_ROBUST_PRIO_PROTECT
};