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| author | Janne Blomqvist <jb@gcc.gnu.org> | 2016-08-19 17:19:51 +0300 |
|---|---|---|
| committer | Janne Blomqvist <jb@gcc.gnu.org> | 2016-08-19 17:19:51 +0300 |
| commit | 09309e09ecfa663cb22c8a210521704df0f18a5d (patch) | |
| tree | 90867836565b9d525c6d273b63d2397a7a3ebed6 /gcc/fortran/trans-openmp.c | |
| parent | 91151a7334543817f1f790310a1bfc4589889cad (diff) | |
| download | gcc-09309e09ecfa663cb22c8a210521704df0f18a5d.zip gcc-09309e09ecfa663cb22c8a210521704df0f18a5d.tar.gz gcc-09309e09ecfa663cb22c8a210521704df0f18a5d.tar.bz2 | |
Use a XOR cipher instead of byte shuffling to protect against bad seeds.
libgfortran:
2016-08-19 Janne Blomqvist <jb@gcc.gnu.org>
* intrinsics/random.c (xor_keys): New array with "secret" keys.
(scramble_seed): XOR given seed with xor_keys array rather than
shuffling bytes.
(unscramble_seed): Remove function.
(random_seed_i4): Use new scramble_seed.
(random_seed_i8): Likewise.
frontend:
2016-08-19 Janne Blomqvist <jb@gcc.gnu.org>
* intrinsics.texi (RANDOM_NUMBER): Remove reference to
init_random_seed in example.
(RANDOM_SEED): Remove warning to not set all seed values to 0.
From-SVN: r239613
Diffstat (limited to 'gcc/fortran/trans-openmp.c')
0 files changed, 0 insertions, 0 deletions