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patches/uClibc/0.9.30.2/290-blackfin-nommu-fork-stub.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04)
changeset 3271 c65dc9b98841
permissions -rw-r--r--
cc/gcc: diable libsanitizer without NPTL

gcc-4.8 comes with a new library to sanitise memory access:
- heap-, stack-, and global-buffer overflow, use-after-free
- data-races between threads

This library requires some _np parts of the API, which are not
implemented in the (old) LinuxThreads, which is still available
in uClibc.

Since NPTL requires a i486 or above, i386 are stuck with using LT,
which precludes building the libsanitizer.

Disable libsanitizer, a bit like libatomic is.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Niels Penneman <niels@penneman.org> 
     1 From: Jie Zhang <jie.zhang@analog.com>

     2 Date: Mon, 1 Jun 2009 07:25:42 +0000 (+0000)

     3 Subject: Backport UCLIBC_HAS_STUBS config option from the upstream. This option makes uClibc... 

     4 X-Git-Url: http://blackfin.uclinux.org/git/?p=readonly-mirrors%2Ftoolchain.git;a=commitdiff_plain;h=cacea6b12bae6f6cfd08e2bbec536e9b23b342f5

     5 

     6 Backport UCLIBC_HAS_STUBS config option from the upstream. This option makes uClibc provide fork() stub on NOMMU targets. It's default off.

     7 

     8 

     9 git-svn-id: svn://localhost/svn/toolchain/trunk@3417 2adf4935-75e9-4407-93b2-34b21a1880a4

    10 ---

    11 

    12 Index: uClibc-0.9.30.2/libc/unistd/daemon.c

    13 ===================================================================

    14 --- uClibc-0.9.30.2.orig/libc/unistd/daemon.c	2010-01-13 22:22:31.000000000 +0100

    15 +++ uClibc-0.9.30.2/libc/unistd/daemon.c	2010-04-06 22:04:11.000000000 +0200

    16 @@ -55,7 +55,6 @@

    17  libc_hidden_proto(dup2)

    18  libc_hidden_proto(setsid)

    19  libc_hidden_proto(chdir)

    20 -libc_hidden_proto(fork)

    21  

    22  #ifndef __ARCH_USE_MMU__

    23  #include <sys/syscall.h>

    24 @@ -85,6 +84,8 @@

    25  	return ret;

    26  }

    27  #else

    28 +libc_hidden_proto(fork)

    29 +

    30  static inline pid_t fork_parent(void)

    31  {

    32  	switch (fork()) {
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