Commit Graph

9 Commits

Author SHA1 Message Date
Zachary Turner
9a4e15cb76 Mark all library options as hidden.
These command line options are not intended for public use, and often
don't even make sense in the context of a particular tool anyway. About
90% of them are already hidden, but when people add new options they
forget to hide them, so if you were to make a brand new tool today, link
against one of LLVM's libraries, and run tool -help you would get a
bunch of junk that doesn't make sense for the tool you're writing.

This patch hides these options. The real solution is to not have
libraries defining command line options, but that's a much larger effort
and not something I'm prepared to take on.

Differential Revision: https://reviews.llvm.org/D40674

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@319505 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-01 00:53:10 +00:00
Zachary Turner
be78316854 [Support] Fix undefined behavior in RandomNumberGenerator.
This has existed pretty much forever AFAICT, but the code was
never being exercised because nobody was using the class.  A
user of this class surfaced, and now we're breaking with UB.
The code was obviously wrong, so it's fixed here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283912 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-11 18:17:26 +00:00
Mehdi Amini
6a59bc7c7d Make RandomNumberGenerator compatible with <random>
LLVM's RandomNumberGenerator wasn't compatible with
the random distribution from <random>.

Fixes PR25105

Patch by: Serge Guelton <serge.guelton@telecom-bretagne.eu>

Differential Revision: https://reviews.llvm.org/D25443

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283854 91177308-0d34-0410-b5e6-96231b3b80d8
2016-10-11 07:13:01 +00:00
Eugene Leviant
e21267a9a4 Implement getRandomBytes() function
This function allows getting arbitrary sized block of random bytes.
Primary motivation is support for --build-id=uuid in lld.

Differential revision: https://reviews.llvm.org/D23671


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@279807 91177308-0d34-0410-b5e6-96231b3b80d8
2016-08-26 08:14:54 +00:00
Benjamin Kramer
2fa206d48a Add missing include that MSVC complains about.
Also reorder includes a bit, NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232980 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-23 18:19:41 +00:00
JF Bastien
544f63e84a Random Number Generator Refactoring (removing from Module)
This patch removes the RNG from Module. Passes should instead create a new RNG for their use as needed.

Patch by Stephen Crane @rinon.

Differential revision: http://reviews.llvm.org/D4377

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224444 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-17 18:12:10 +00:00
JF Bastien
b4840d7a4d Random Number Generator (llvm)
Provides an abstraction for a random number generator (RNG) that produces a stream of pseudo-random numbers.
The current implementation uses C++11 facilities and is therefore not cryptographically secure.

The RNG is salted with the text of the current command line invocation.
In addition, a user may specify a seed (reproducible builds).

In clang, the seed can be set via

-frandom-seed=X
In the back end, the seed can be set via

-rng-seed=X
This is the llvm part of the patch.
clang part: D3391

URL: http://reviews.llvm.org/D3390
Author: yln

I'm landing this for the second time, it broke Windows bots the first time around.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211705 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-25 15:21:42 +00:00
JF Bastien
02b4e6e7ab Revert "Random Number Generator (llvm)"
This reverts commit cccba093090d127e0b6d17473b14c264c14c5259.

It causes build breakage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211146 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-18 06:33:23 +00:00
JF Bastien
1d04a2324c Random Number Generator (llvm)
Summary:
Provides an abstraction for a random number generator (RNG) that produces a stream of pseudo-random numbers.
The current implementation uses C++11 facilities and is therefore not cryptographically secure.

The RNG is salted with the text of the current command line invocation.
In addition, a user may specify a seed (reproducible builds).

In clang, the seed can be set via
  -frandom-seed=X
In the back end, the seed can be set via
  -rng-seed=X

This is the llvm part of the patch.
clang part: D3391

Reviewers: ahomescu, rinon, nicholas, jfb

Reviewed By: jfb

Subscribers: jfb, perl

Differential Revision: http://reviews.llvm.org/D3390

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211145 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-18 06:23:25 +00:00