These libraries are used for Clang runtime analysis support with
flags like `-fsanitize=memory` and are not actually implicitly
linked libraries.
Fixes#16194.
This commit fixes the following warning originally introduced in
1325260 (Add macros cmake_push/pop_check_state() as discussed on the list.)
Argument not separated from preceding token by whitespace.
The new `%s` format specifier is substituted by file()/string()
`TIMESTAMP` sub-commands with the number of seconds since unix-epoch
(1970-01-01 00:00:00 UTC).
Co-Author: Nils Gladitz <nilsgladitz@gmail.com>
When compiling with
LDFLAGS='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld'
the compiler output includes a line like
COLLECT_GCC_OPTIONS='-specs=/usr/lib/rpm/redhat/redhat-hardened-ld' ...
that our link line regex matches due to an argument ending in "-ld".
Since it is not really the link line no implicit link information is
dectected. Exclude "VAR=..." lines from consideration as link lines to
fix this.
Move failure cases from the CMake.{If,List,While,GetProperty} tests over
to the RunCMake.{if,list,while,get_property} tests to use the more
modern infrastructure. This also avoids using REGEX_ESCAPE_STRING to
try to regex-match full paths.
Since the build tree will populate content under the source tree
the test cannot reliably check that the source tree is pristine.
Simply skip most of the test in this case.
When the cmake sources are all set to read-only (e.g. after importing
into perforce), the CMake.ELF test fails because the copy of the binary
is also read-only and cannot be modified. Fix this by copying the
binary without source permissions.
Move the test cases from Tests/CMakeTests/ConfigureFileTest.cmake.in
over to use the RunCMake.configure_file infrastructure. This does much
more robust verification of CMake output for each test case, and would
have caught the regression fixed in our parent commit.
string SUBSTRING command now ignores length if it points
past end of string and uses end of string instead.
String SUBSTRING tests now cover more corner cases.
The matches have already been calculated and can simply be taken from
CMAKE_MATCH_n variables. This avoids multiple compilations of the same or very
similar regular expressions.
Since commit 7d47c693 (Drop compatibility with CMake < 2.4, 2013-10-08)
we no longer need to use the configure_file IMMEDIATE option to support
compatibility modes less than 2.0.
Add the CMake.PolicyCheck test.
This test uses "git grep" to look for policies added in a "dated"
version of CMake. It will fail if a policy is added as of,
for example, CMake 2.8.11.20130828.
The intent is to prevent such constructs from making it into an
"official" release. Three instances actually appeared in the first
attempted release candidate for 2.8.12.
This test may sometimes yield false positives. After all, it's just
using a regular expression to detect this condition, and something
in a comment could possibly match it. As of right now, that's not
true, but it's easy to imagine such a comment being added.
The new test may also not catch all future problems of this sort.
However, it will catch problems of this sort for all code that follows
the present layout style in Source/cmPolicies.cxx.
Expose the internal system information API to the CMake language. For
example, it is useful to see how much memory the system has available to
estimate an upper limit of tests that can run in parallel.
Checkout [1] as an example of the test failures. In that particular cases, the
failures is caused by the plus sign in the path being pass unescaped
(buildd-cmake_2.8.9-1~bpo60+1-armel-3Lvkef) to the regexp.
In addition to failures in the log, the following new tests also fail in 2.8.11:
243 - CTestTestMemcheckUnknown (Failed)
244 - CTestTestMemcheckUnknownQuoted (Failed)
248 - CTestTestMemcheckDummyValgrindFailPre (Failed)
249 - CTestTestMemcheckDummyValgrindFailPost (Failed)
250 - CTestTestMemcheckDummyPurify (Failed)
251 - CTestTestMemcheckDummyBC (Failed)
253 - CMake.List (Failed)
[1] https://buildd.debian.org/status/fetch.php?pkg=cmake&arch=armel&ver=2.8.9-1~bpo60%2B1&stamp=1369243896
Teach CMakeParseImplicitLinkInfo to convert the CMAKE_LINKER file name
to a regular expression that matches only the original name. Escape
special characters like '+' so they are not treated as regex syntax.
Extend the ImplicitLinkInfoTest to test handling of a CMAKE_LINKER value
with many special characters.
Teach CMakeParseImplicitLinkInfo to convert implicit link library full
paths to a canonical form. This makes them more reproducible in case
different language compiler front-ends add the same library by different
paths e.g. ".../libA.a" and "...//libA.a".
Add a case to the CMake.ImplicitLinkInfo test to cover removal of extra
slashes from both library and directory paths.
Previously we hard-coded a list of implicit framework directories but
did not account for CMAKE_OSX_SYSROOT or for changes to the list across
OS X versions. Instead we should automatically detect the framework
directories for the active toolchain.
The parent commit added the "-Wl,-v" option to ask "ld" to print its
implicit directories. It displays a block such as:
Framework search paths:
/...
Parse this block to extract the list of framework directories.
Detection may fail on toolchains that do not list their framework
directories, such as older OS X linkers. Always treat the paths
<sdk>/Library/Frameworks
<sdk>/System/Library/Frameworks
<sdk>/Network/Library/Frameworks # Older OS X only
/System/Library/Frameworks
as implicit. Note that /System/Library/Frameworks should always be
considered implicit so that frameworks CMake finds there will not
override the SDK copies.
We detect the implicit link directories for the toolchain by adding a
flag to get verbose output from the compiler front-end while linking the
ABI detection binary. Newer OS X toolchains based on Clang do not add
the implicit link directories with -L options to their internal
invocation of "ld". Instead they use a linker that comes with the
toolchain and is already configured with the proper directories.
Add the "-Wl,-v" option to ask "ld" to print its implicit directories.
It displays them in a block such as:
Library search paths:
/...
Parse this block to extract the implicit link directories.
While at it, remove the checks introduced by commit efaf335b (Skip
implicit link information on Xcode, 2009-07-23) and commit 5195a664
(Skip implicit link info for multiple OS X archs, 2009-09-22). Discard
the non-system link directories added by Xcode. Discard all detected
implicit libraries in the multi-architecture case but keep the
directories. The directories are still useful without the libraries
just to suppress addition of explicit -L options for them.
The file command requires at least two arguments, so guarding the GLOB and
MAKE_DIRECTORY command is not necessary. Changed it for an assert to keep the
protection.
Make the EXPECTED_HASH option take only a single value instead of two to
avoid handling sub-keyword arguments. This is also consistent with
URL_HASH in ExternalProject.
Extend the number of components tested by
if(... VERSION_LESS ...)
if(... VERSION_EQUAL ...)
if(... VERSION_GREATER ...)
from 4 to 8. The latter is a more extreme maximum.
Brad King
Ruslan Baratov
Chuck Atkins
Daniel Pfeifer
Jean-Christophe Fillion-Robin
Jose-Luis Blanco-Claraco
Bill Newcomb
Domen Vrankar
Rolf Eike Beer
Matt McCormick
Daniele E. Domenichelli
David Cole
Nils Gladitz
Modestas Vainius
David Cole
Nils Gladitz
Petr Kmoch
Amine Chadly
Bill Hoffman