uclibc: Sync patches with OE, fix KERNEL variables to match sysroot changes, add patch to fix alignment problems on armv5e devices

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3795 311d38ba-8fff-0310-9ca6-ca027cbcb966
2026-01-29 21:08:42 +01:00 · 2008-02-14 01:18:44 +00:00
parent b0a6e92f31
commit 54566e6f90
9 changed files with 409 additions and 7 deletions
--- a/meta/packages/uclibc/uclibc-0.9.29/arm_fix_alignment.patch
+++ b/meta/packages/uclibc/uclibc-0.9.29/arm_fix_alignment.patch
@@ -0,0 +1,19 @@
+ARMV5 can use STRD and LDRD access instructions but these accesses need to be 
+8 byte aligned. The dynamic linker's malloc needs to match this so structures
+become 8 byte aligned to void unaligned accesses.
+
+RP - 14/02/2008
+
+Index: uClibc-0.9.29/ldso/ldso/arm/dl-sysdep.h
+===================================================================
+--- uClibc-0.9.29.orig/ldso/ldso/arm/dl-sysdep.h	2008-02-14 00:58:12.000000000 +0000
+++ uClibc-0.9.29/ldso/ldso/arm/dl-sysdep.h	2008-02-14 00:59:19.000000000 +0000
+@@ -15,6 +15,8 @@
+   GOT_BASE[1] = (unsigned long) MODULE; \
+ }
+ 
+#define DL_MALLOC_ALIGN 8  /* EABI needs 8 byte alignment for STRD LDRD*/
+
+ static inline unsigned long arm_modulus(unsigned long m, unsigned long p)
+ {
+ 	unsigned long i,t,inc;
--- a/meta/packages/uclibc/uclibc-0.9.29/cm-x270/uClibc.machine
+++ b/meta/packages/uclibc/uclibc-0.9.29/cm-x270/uClibc.machine
@@ -0,0 +1,70 @@
+#
+# Automatically generated make config: don't edit
+# Sat May 12 23:18:41 2007
+#
+# TARGET_alpha is not set
+TARGET_arm=y
+# TARGET_bfin is not set
+# TARGET_cris is not set
+# TARGET_e1 is not set
+# TARGET_frv is not set
+# TARGET_h8300 is not set
+# TARGET_hppa is not set
+# TARGET_i386 is not set
+# TARGET_i960 is not set
+# TARGET_ia64 is not set
+# TARGET_m68k is not set
+# TARGET_microblaze is not set
+# TARGET_mips is not set
+# TARGET_nios is not set
+# TARGET_nios2 is not set
+# TARGET_powerpc is not set
+# TARGET_sh is not set
+# TARGET_sh64 is not set
+# TARGET_sparc is not set
+# TARGET_v850 is not set
+# TARGET_vax is not set
+# TARGET_x86_64 is not set
+
+#
+# Target Architecture Features and Options
+#
+TARGET_ARCH="arm"
+FORCE_OPTIONS_FOR_ARCH=y
+# CONFIG_ARM_OABI is not set
+CONFIG_ARM_EABI=y
+USE_BX=y
+# CONFIG_GENERIC_ARM is not set
+# CONFIG_ARM610 is not set
+# CONFIG_ARM710 is not set
+# CONFIG_ARM7TDMI is not set
+# CONFIG_ARM720T is not set
+# CONFIG_ARM920T is not set
+# CONFIG_ARM922T is not set
+# CONFIG_ARM926T is not set
+# CONFIG_ARM10T is not set
+# CONFIG_ARM1136JF_S is not set
+# CONFIG_ARM1176JZ_S is not set
+# CONFIG_ARM1176JZF_S is not set
+# CONFIG_ARM_SA110 is not set
+# CONFIG_ARM_SA1100 is not set
+# CONFIG_ARM_XSCALE is not set
+CONFIG_ARM_IWMMXT=y
+TARGET_SUBARCH=""
+
+#
+# Using ELF file format
+#
+ARCH_ANY_ENDIAN=y
+ARCH_LITTLE_ENDIAN=y
+# ARCH_WANTS_BIG_ENDIAN is not set
+ARCH_WANTS_LITTLE_ENDIAN=y
+ARCH_HAS_MMU=y
+ARCH_USE_MMU=y
+UCLIBC_HAS_FLOATS=y
+# UCLIBC_HAS_FPU is not set
+UCLIBC_HAS_SOFT_FLOAT=y
+DO_C99_MATH=y
+KERNEL_HEADERS="/usr/include"
+HAVE_DOT_CONFIG=y
+
--- a/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-001-fix-mmap.patch
+++ b/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-001-fix-mmap.patch
@@ -0,0 +1,91 @@
+--- uClibc-0.9.29.oorig/test/mmap/mmap2.c	(revision 0)
+++ uClibc-0.9.29/test/mmap/mmap2.c	(revision 18616)
+@@ -0,0 +1,41 @@
+/* When trying to map /dev/mem with offset 0xFFFFF000 on the ARM platform, mmap
+ * returns -EOVERFLOW.
+ *
+ * Since off_t is defined as a long int and the sign bit is set in the address,
+ * the shift operation shifts in ones instead of zeroes
+ * from the left. This results the offset sent to the kernel function becomes
+ * 0xFFFFFFFF instead of 0x000FFFFF with MMAP2_PAGE_SHIFT set to 12.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#define FATAL do { fprintf(stderr, "Error at line %d, file %s (%d) [%s]\n", \
+  __LINE__, __FILE__, errno, strerror(errno)); exit(1); } while(0)
+
+#define MAP_SIZE 4096UL
+#define MAP_MASK (MAP_SIZE - 1)
+
+int main(int argc, char **argv) {
+    void* map_base = 0;
+    int fd;
+    off_t target = 0xfffff000;
+    if((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1) FATAL;
+    printf("/dev/mem opened.\n");
+    fflush(stdout);
+
+   /* Map one page */
+    map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+                        fd, target & ~MAP_MASK);
+    if(map_base == (void *) -1) FATAL;
+    printf("Memory mapped at address %p.\n", map_base);
+    fflush(stdout);
+    if(munmap(map_base, MAP_SIZE) == -1) FATAL;
+    close(fd);
+    return 0;
+}
+--- uClibc-0.9.29.oorig/libc/sysdeps/linux/arm/mmap.c	(revision 18615)
+++ uClibc-0.9.29/libc/sysdeps/linux/arm/mmap.c	(revision 18616)
+@@ -27,7 +27,6 @@ __ptr_t mmap(__ptr_t addr, size_t len, i
+ 
+ #elif defined  (__NR_mmap2)
+ #define __NR__mmap __NR_mmap2
+-
+ #ifndef MMAP2_PAGE_SHIFT
+ # define MMAP2_PAGE_SHIFT 12
+ #endif
+@@ -39,9 +38,17 @@ __ptr_t mmap(__ptr_t addr, size_t len, i
+ {
+   /* check if offset is page aligned */
+     if (offset & ((1 << MMAP2_PAGE_SHIFT) - 1))
+    {
+        __set_errno(EINVAL);
+         return MAP_FAILED;
+    }
+#ifdef __USE_FILE_OFFSET64
+  return (__ptr_t) _mmap (addr, len, prot, flags,
+						  fd,((__u_quad_t) offset >> MMAP2_PAGE_SHIFT));
+#else
+   return (__ptr_t) _mmap (addr, len, prot, flags,
+-						  fd,(off_t) (offset >> MMAP2_PAGE_SHIFT));
+                          fd,((__u_long) offset >> MMAP2_PAGE_SHIFT));
+#endif
+ }
+ #elif defined (__NR_mmap)
+ # define __NR__mmap __NR_mmap
+--- uClibc-0.9.29.oorig/libc/sysdeps/linux/common/mmap64.c	(revision 18615)
+++ uClibc-0.9.29/libc/sysdeps/linux/common/mmap64.c	(revision 18616)
+@@ -58,8 +58,13 @@ __ptr_t mmap64(__ptr_t addr, size_t len,
+ 		__set_errno(EINVAL);
+ 		return MAP_FAILED;
+ 	}
+-
+-	return __syscall_mmap2(addr, len, prot, flags, fd, (off_t) (offset >> MMAP2_PAGE_SHIFT));
+#ifdef __USE_FILE_OFFSET64
+  return __syscall_mmap2(addr, len, prot, flags,
+                         fd,((__u_quad_t)offset >> MMAP2_PAGE_SHIFT));
+#else
+   return __syscall_mmap2(addr, len, prot, flags,
+                          fd,((__u_long)offset >> MMAP2_PAGE_SHIFT));
+#endif
+ }
+ 
+ # endif
--- a/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-conditional-sched_affinity.patch
+++ b/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-conditional-sched_affinity.patch
@@ -0,0 +1,53 @@
+diff -ur uClibc-0.9.29/libc/sysdeps/linux/common/sched_getaffinity.c uClibc-0.9.29-patched/libc/sysdeps/linux/common/sched_getaffinity.c
+--- uClibc-0.9.29/libc/sysdeps/linux/common/sched_getaffinity.c	2007-02-12 16:52:32.000000000 -0600
+++ uClibc-0.9.29-patched/libc/sysdeps/linux/common/sched_getaffinity.c	2007-05-09 18:05:09.397411811 -0500
+@@ -29,6 +29,7 @@
+ #include <sys/param.h>
+ #include <sys/types.h>
+ 
+#ifdef __NR_sched_getaffinity
+ libc_hidden_proto(memset)
+ 
+ #define __NR___syscall_sched_getaffinity __NR_sched_getaffinity
+@@ -48,5 +49,15 @@
+ 	}
+ 	return res;
+ }
+#else
+/*
+int sched_getaffinity(pid_t pid, size_t cpusetsize, cpu_set_t *cpuset)
+{
+	__set_errno(ENOSYS);
+	return -1;
+}
+*/
+ #endif
+ #endif
+
+#endif
+diff -ur uClibc-0.9.29/libc/sysdeps/linux/common/sched_setaffinity.c uClibc-0.9.29-patched/libc/sysdeps/linux/common/sched_setaffinity.c
+--- uClibc-0.9.29/libc/sysdeps/linux/common/sched_setaffinity.c	2007-02-12 16:52:32.000000000 -0600
+++ uClibc-0.9.29-patched/libc/sysdeps/linux/common/sched_setaffinity.c	2007-05-09 18:05:09.397411811 -0500
+@@ -31,6 +31,7 @@
+ #include <sys/types.h>
+ #include <alloca.h>
+ 
+#ifdef __NR_sched_setaffinity
+ libc_hidden_proto(getpid)
+ 
+ #define __NR___syscall_sched_setaffinity __NR_sched_setaffinity
+@@ -74,5 +75,14 @@
+ 
+ 	return INLINE_SYSCALL (sched_setaffinity, 3, pid, cpusetsize, cpuset);
+ }
+#else
+/*
+int sched_setaffinity(pid_t pid, size_t cpusetsize, const cpu_set_t *cpuset)
+{
+	__set_errno(ENOSYS);
+	return -1;
+}
+*/
+#endif
+ #endif
+ #endif
--- a/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-fix-gethostent_r-failure-retval.patch
+++ b/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-fix-gethostent_r-failure-retval.patch
@@ -0,0 +1,12 @@
+diff -ur uClibc-0.9.29/libc/inet/resolv.c uClibc-0.9.29-patched/libc/inet/resolv.c
+--- uClibc-0.9.29/libc/inet/resolv.c	2007-04-23 12:01:05.000000000 -0500
+++ uClibc-0.9.29-patched/libc/inet/resolv.c	2007-05-09 18:05:33.563404419 -0500
+@@ -1700,7 +1700,7 @@
+ int gethostent_r(struct hostent *result_buf, char *buf, size_t buflen,
+ 	struct hostent **result, int *h_errnop)
+ {
+-    int ret;
+    int ret = HOST_NOT_FOUND;
+ 
+     __UCLIBC_MUTEX_LOCK(mylock);
+     if (__gethostent_fp == NULL) {
--- a/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-fix-internal_function-definition.patch
+++ b/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-fix-internal_function-definition.patch
@@ -0,0 +1,51 @@
+Index: uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h
+===================================================================
+--- uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h	(revision 18898)
+++ uClibc/libc/sysdeps/linux/i386/bits/uClibc_arch_features.h	(working copy)
+@@ -42,6 +42,8 @@
+ /* define if target supports IEEE signed zero floats */
+ #define __UCLIBC_HAVE_SIGNED_ZERO__
+ 
+#if defined _LIBC
+ #define internal_function __attribute__ ((regparm (3), stdcall))
+#endif
+ 
+ #endif /* _BITS_UCLIBC_ARCH_FEATURES_H */
+Index: uClibc/include/libc-symbols.h
+===================================================================
+--- uClibc/include/libc-symbols.h	(revision 18898)
+++ uClibc/include/libc-symbols.h	(working copy)
+@@ -22,6 +22,16 @@
+ #ifndef _LIBC_SYMBOLS_H
+ #define _LIBC_SYMBOLS_H	1
+ 
+/* This is defined for the compilation of all C library code.  features.h
+   tests this to avoid inclusion of stubs.h while compiling the library,
+   before stubs.h has been generated.  Some library code that is shared
+   with other packages also tests this symbol to see if it is being
+   compiled as part of the C library.  We must define this before including
+   config.h, because it makes some definitions conditional on whether libc
+   itself is being compiled, or just some generator program.  */
+#define _LIBC	1
+
+
+ /* This file's macros are included implicitly in the compilation of every
+    file in the C library by -imacros.
+ 
+@@ -40,16 +50,6 @@
+ 
+ #include <bits/uClibc_arch_features.h>
+ 
+-
+-/* This is defined for the compilation of all C library code.  features.h
+-   tests this to avoid inclusion of stubs.h while compiling the library,
+-   before stubs.h has been generated.  Some library code that is shared
+-   with other packages also tests this symbol to see if it is being
+-   compiled as part of the C library.  We must define this before including
+-   config.h, because it makes some definitions conditional on whether libc
+-   itself is being compiled, or just some generator program.  */
+-#define _LIBC	1
+-
+ /* Enable declarations of GNU extensions, since we are compiling them.  */
+ #define _GNU_SOURCE	1
+ 
--- a/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-rm-whitespace.patch
+++ b/meta/packages/uclibc/uclibc-0.9.29/uClibc-0.9.29-rm-whitespace.patch
@@ -0,0 +1,86 @@
+diff -urN uClibc-0.9.29-0rig/include/assert.h uClibc-0.9.29/include/assert.h
+--- uClibc-0.9.29-0rig/include/assert.h	2005-11-03 23:42:46.000000000 +0100
+++ uClibc-0.9.29/include/assert.h	2007-08-13 19:10:57.000000000 +0200
+@@ -31,7 +31,7 @@
+ #define	_ASSERT_H	1
+ #include <features.h>
+ 
+-#if defined __cplusplus && __GNUC_PREREQ (2,95)
+#if defined __cplusplus && __GNUC_PREREQ(2,95)
+ # define __ASSERT_VOID_CAST static_cast<void>
+ #else
+ # define __ASSERT_VOID_CAST (void)
+@@ -59,13 +59,17 @@
+   (__ASSERT_VOID_CAST ((expr) ? 0 :					      \
+ 		       (__assert (__STRING(expr), __FILE__, __LINE__,    \
+ 				       __ASSERT_FUNCTION), 0)))
+-  
+
+/* Define some temporaries to workaround tinyx makedepend bug */
+#define	__GNUC_PREREQ_2_6	__GNUC_PREREQ(2, 6)
+#define	__GNUC_PREREQ_2_4	__GNUC_PREREQ(2, 4)
+ /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
+    which contains the name of the function currently being defined.
+    This is broken in G++ before version 2.6.
+    C9x has a similar variable called __func__, but prefer the GCC one since
+    it demangles C++ function names.  */
+-# if defined __cplusplus ? __GNUC_PREREQ (2, 6) : __GNUC_PREREQ (2, 4)
+
+# if defined __cplusplus ? __GNUC_PREREQ_2_6 : __GNUC_PREREQ_2_4
+ #   define __ASSERT_FUNCTION	__PRETTY_FUNCTION__
+ # else
+ #  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+diff -urN uClibc-0.9.29-0rig/include/complex.h uClibc-0.9.29/include/complex.h
+--- uClibc-0.9.29-0rig/include/complex.h	2002-05-09 10:15:21.000000000 +0200
+++ uClibc-0.9.29/include/complex.h	2007-08-13 17:55:29.000000000 +0200
+@@ -33,7 +33,7 @@
+ /* We might need to add support for more compilers here.  But since ISO
+    C99 is out hopefully all maintained compilers will soon provide the data
+    types `float complex' and `double complex'.  */
+-#if __GNUC_PREREQ (2, 7) && !__GNUC_PREREQ (2, 97)
+#if __GNUC_PREREQ(2, 7) && !__GNUC_PREREQ(2, 97)
+ # define _Complex __complex__
+ #endif
+ 
+diff -urN uClibc-0.9.29-0rig/include/features.h uClibc-0.9.29/include/features.h
+--- uClibc-0.9.29-0rig/include/features.h	2006-11-29 22:10:04.000000000 +0100
+++ uClibc-0.9.29/include/features.h	2007-08-13 17:55:51.000000000 +0200
+@@ -143,7 +143,7 @@
+ 
+ /* Convenience macros to test the versions of glibc and gcc.
+    Use them like this:
+-   #if __GNUC_PREREQ (2,8)
+   #if __GNUC_PREREQ(2,8)
+    ... code requiring gcc 2.8 or later ...
+    #endif
+    Note - they won't work for gcc1 or glibc1, since the _MINOR macros
+@@ -297,7 +297,7 @@
+ /* uClibc does not support _FORTIFY_SOURCE */
+ #undef _FORTIFY_SOURCE
+ #if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 \
+-    && __GNUC_PREREQ (4, 1) && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
+    && __GNUC_PREREQ(4, 1) && defined __OPTIMIZE__ && __OPTIMIZE__ > 0
+ # if _FORTIFY_SOURCE > 1
+ #  define __USE_FORTIFY_LEVEL 2
+ # else
+@@ -366,7 +366,7 @@
+ #endif	/* !ASSEMBLER */
+ 
+ /* Decide whether we can define 'extern inline' functions in headers.  */
+-#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \
+#if __GNUC_PREREQ(2, 7) && defined __OPTIMIZE__ \
+     && !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__
+ # define __USE_EXTERN_INLINES	1
+ #endif
+diff -urN uClibc-0.9.29-0rig/include/tgmath.h uClibc-0.9.29/include/tgmath.h
+--- uClibc-0.9.29-0rig/include/tgmath.h	2002-05-09 10:15:21.000000000 +0200
+++ uClibc-0.9.29/include/tgmath.h	2007-08-13 17:56:17.000000000 +0200
+@@ -34,7 +34,7 @@
+    do not try this for now and instead concentrate only on GNU CC.  Once
+    we have more information support for other compilers might follow.  */
+ 
+-#if __GNUC_PREREQ (2, 7)
+#if __GNUC_PREREQ(2, 7)
+ 
+ # ifdef __NO_LONG_DOUBLE_MATH
+ #  define __tgml(fct) fct
--- a/meta/packages/uclibc/uclibc.inc
+++ b/meta/packages/uclibc/uclibc.inc
@@ -76,8 +76,8 @@ EXTRA_OEMAKE = "${OEMAKE_NO_CC} 'CC=${CC}'"
 EXTRA_OEMAKE_task_do_populate_staging = "${OEMAKE_NO_CC}"
 EXTRA_OEMAKE_task_do_package = "${OEMAKE_NO_CC}"

-KERNEL_SOURCE = "${CROSS_DIR}/${TARGET_SYS}/include"
-KERNEL_HEADERS = "${CROSS_DIR}/${TARGET_SYS}/include"
+KERNEL_SOURCE = "${STAGING_INCDIR}"
+KERNEL_HEADERS = "${STAGING_INCDIR}"

 # Lets munge this via siteinfo.bbclass as well:
 # ARCH_BIG_ENDIAN=y
@@ -140,15 +140,19 @@ do_configure() {
 		echo "# CONFIG_ARM_EABI is not set"     >> ${S}/.config
 	fi

-	oe_runmake oldconfig
+	yes '' | oe_runmake oldconfig
 }

 do_stage() {
+	# This MUST be done first because we
+	# will install crt1.o in the install_dev stage and gcc needs it
+
+	# Install into the staging dir
 	oe_runmake PREFIX= DEVEL_PREFIX=${UCLIBC_STAGE_PREFIX}/ \
 		RUNTIME_PREFIX=${UCLIBC_STAGE_PREFIX}/ \
 		install_dev install_runtime

-	oe_runmake utils
+	# Install into the staging dir
 	oe_runmake PREFIX= DEVEL_PREFIX=${UCLIBC_STAGE_PREFIX}/ \
 		RUNTIME_PREFIX=${UCLIBC_STAGE_PREFIX}/ \
 		install_utils
@@ -168,8 +172,14 @@ do_stage() {
 }

 do_install() {
+        # Tis MUST be done first because we
+        # will install crt1.o in the install_dev stage and gcc needs it)
+	oe_runmake PREFIX= DEVEL_PREFIX=${UCLIBC_STAGE_PREFIX}/ \
+		RUNTIME_PREFIX=${UCLIBC_STAGE_PREFIX}/ \
+		install_dev install_runtime
+
 	oe_runmake PREFIX=${D} DEVEL_PREFIX=${prefix}/ RUNTIME_PREFIX=/ \
-		install_dev install_runtime install_utils
+		install_dev install_runtime 

 	# We don't really need this in ${includedir}
 	rm -f ${D}${prefix}/include/.cvsignore
@@ -195,5 +205,9 @@ do_install() {
 		mv ${D}/usr/bin/* ${D}${bindir}/
 		rmdir ${D}/usr/bin
 	fi
+
+        oe_runmake utils
+        oe_runmake PREFIX=${D} DEVEL_PREFIX=${prefix}/ RUNTIME_PREFIX=/ \
+                install_utils
 }

--- a/meta/packages/uclibc/uclibc_0.9.29.bb
+++ b/meta/packages/uclibc/uclibc_0.9.29.bb
@@ -7,7 +7,7 @@
 # on whether the base patches apply to the selected (SRCDATE) svn release.
 #
 UCLIBC_BASE ?= "0.9.29"
-PR = "r7"
+PR = "r9"

 require uclibc.inc

@@ -16,7 +16,13 @@ PROVIDES += "virtual/${TARGET_PREFIX}libc-for-gcc"
 SRC_URI += "file://uClibc.machine file://uClibc.distro \
 	    file://errno_values.h.patch;patch=1 \
 	    file://termios.h.patch;patch=1 \
-	   "
+            file://uClibc-0.9.29-001-fix-mmap.patch;patch=1 \
+	    file://uClibc-0.9.29-conditional-sched_affinity.patch;patch=1 \
+	    file://uClibc-0.9.29-fix-gethostent_r-failure-retval.patch;patch=1 \
+	    file://uClibc-0.9.29-fix-internal_function-definition.patch;patch=1 \
+	    file://uClibc-0.9.29-rm-whitespace.patch;patch=1 \
+	    file://arm_fix_alignment.patch;patch=1 \
+	    "

 # mmap-unsigned-shift_bugid1303.patch
 # http://uclibc.org/lists/uclibc-cvs/2007-May/011360.html;patch=1"