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patches/mpfr/2.4.1/140-zeta_ui-shift.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 diff -Naurd mpfr-2.4.1-a/PATCHES mpfr-2.4.1-b/PATCHES

     2 --- mpfr-2.4.1-a/PATCHES	2009-03-13 02:50:47.000000000 +0000

     3 +++ mpfr-2.4.1-b/PATCHES	2009-03-13 02:50:48.000000000 +0000

     4 @@ -0,0 +1 @@

     5 +zeta_ui-shift

     6 diff -Naurd mpfr-2.4.1-a/VERSION mpfr-2.4.1-b/VERSION

     7 --- mpfr-2.4.1-a/VERSION	2009-03-10 01:44:40.000000000 +0000

     8 +++ mpfr-2.4.1-b/VERSION	2009-03-13 02:50:48.000000000 +0000

     9 @@ -1 +1 @@

    10 -2.4.1-p4

    11 +2.4.1-p5

    12 diff -Naurd mpfr-2.4.1-a/mpfr.h mpfr-2.4.1-b/mpfr.h

    13 --- mpfr-2.4.1-a/mpfr.h	2009-03-10 01:44:40.000000000 +0000

    14 +++ mpfr-2.4.1-b/mpfr.h	2009-03-13 02:50:48.000000000 +0000

    15 @@ -27,7 +27,7 @@

    16  #define MPFR_VERSION_MAJOR 2

    17  #define MPFR_VERSION_MINOR 4

    18  #define MPFR_VERSION_PATCHLEVEL 1

    19 -#define MPFR_VERSION_STRING "2.4.1-p4"

    20 +#define MPFR_VERSION_STRING "2.4.1-p5"

    21  

    22  /* Macros dealing with MPFR VERSION */

    23  #define MPFR_VERSION_NUM(a,b,c) (((a) << 16L) | ((b) << 8) | (c))

    24 diff -Naurd mpfr-2.4.1-a/version.c mpfr-2.4.1-b/version.c

    25 --- mpfr-2.4.1-a/version.c	2009-03-10 01:44:40.000000000 +0000

    26 +++ mpfr-2.4.1-b/version.c	2009-03-13 02:50:48.000000000 +0000

    27 @@ -25,5 +25,5 @@

    28  const char *

    29  mpfr_get_version (void)

    30  {

    31 -  return "2.4.1-p4";

    32 +  return "2.4.1-p5";

    33  }

    34 diff -Naurd mpfr-2.4.1-a/zeta_ui.c mpfr-2.4.1-b/zeta_ui.c

    35 --- mpfr-2.4.1-a/zeta_ui.c	2009-02-20 09:43:17.000000000 +0000

    36 +++ mpfr-2.4.1-b/zeta_ui.c	2009-03-13 02:50:48.000000000 +0000

    37 @@ -177,7 +177,9 @@

    38                    mpz_mul_ui (t, t, 2 * k - 1);

    39                  }

    40                mpz_div_2exp (t, t, 1);

    41 -              if (n < 1UL << (BITS_PER_MP_LIMB / 2))

    42 +              /* Warning: the test below assumes that an unsigned long

    43 +                 has no padding bits. */

    44 +              if (n < 1UL << ((sizeof(unsigned long) * CHAR_BIT) / 2))

    45                  /* (n - k + 1) * (n + k - 1) < n^2 */

    46                  mpz_divexact_ui (t, t, (n - k + 1) * (n + k - 1));

    47                else
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