diff options
author | sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> | 2011-08-23 07:35:42 +0000 |
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committer | sewardj <sewardj@a5019735-40e9-0310-863c-91ae7b9d1cf9> | 2011-08-23 07:35:42 +0000 |
commit | 70d71c7de8d70615d17be7bcd3b0e047d455fbfb (patch) | |
tree | 1ed3329e3f5e21006b4b39939b728deb6dba44ef | |
parent | 25f8a7e47d4901f9e03a30245b3982692be14bf4 (diff) |
Fix link error for 32-bit build on OSX 10.7 (Lion). This is the
failure referred to in #275168 comment 0.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12000 a5019735-40e9-0310-863c-91ae7b9d1cf9
-rw-r--r-- | coregrind/m_main.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/coregrind/m_main.c b/coregrind/m_main.c index f0134b6a..ca82eb47 100644 --- a/coregrind/m_main.c +++ b/coregrind/m_main.c @@ -3208,6 +3208,104 @@ Long __moddi3 (Long u, Long v) return r; } +/* ------------------------------------------------ + ld_classic: Undefined symbols: + ___fixunsdfdi + ------------------------------------------------ +*/ + +/* ===-- fixunsdfdi.c - Implement __fixunsdfdi -----------------------------=== + * + * The LLVM Compiler Infrastructure + * + * This file is dual licensed under the MIT and the University of Illinois Open + * Source Licenses. See LICENSE.TXT for details. + * + * ===----------------------------------------------------------------------=== + * + * This file implements __fixunsdfdi for the compiler_rt library. + * + * ===----------------------------------------------------------------------=== + */ + +/* As per http://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses, + + the "NCSA/University of Illinois Open Source License" is compatible + with the GPL (both version 2 and 3). What is claimed to be + compatible is this + + http://www.opensource.org/licenses/UoI-NCSA.php + + and the LLVM documentation at + + http://www.llvm.org/docs/DeveloperPolicy.html#license + + says all the code in LLVM is available under the University of + Illinois/NCSA Open Source License, at this URL + + http://www.opensource.org/licenses/UoI-NCSA.php + + viz, the same one that the FSF pages claim is compatible. So I + think it's OK to include it. +*/ + +/* Returns: convert a to a unsigned long long, rounding toward zero. + * Negative values all become zero. + */ + +/* Assumption: double is a IEEE 64 bit floating point type + * du_int is a 64 bit integral type + * value in double is representable in du_int or is negative + * (no range checking performed) + */ + +/* seee eeee eeee mmmm mmmm mmmm mmmm mmmm | mmmm mmmm mmmm mmmm mmmm mmmm mmmm mmmm */ + +typedef unsigned long long du_int; +typedef unsigned su_int; + +typedef union +{ + du_int all; + struct + { +#if VG_LITTLEENDIAN + su_int low; + su_int high; +#else + su_int high; + su_int low; +#endif /* VG_LITTLEENDIAN */ + }s; +} udwords; + +typedef union +{ + udwords u; + double f; +} double_bits; + +du_int __fixunsdfdi(double a); + +du_int +__fixunsdfdi(double a) +{ + double_bits fb; + fb.f = a; + int e = ((fb.u.s.high & 0x7FF00000) >> 20) - 1023; + if (e < 0 || (fb.u.s.high & 0x80000000)) + return 0; + udwords r; + r.s.high = (fb.u.s.high & 0x000FFFFF) | 0x00100000; + r.s.low = fb.u.s.low; + if (e > 52) + r.all <<= (e - 52); + else + r.all >>= (52 - e); + return r.all; +} + + #endif |