[CMake] Remove HAVE_DLFCN_H and HAVE_DLADDR (#123879)

It is sufficient to just use `HAVE_DLOPEN`.

[CMake] Remove some unneeded HAVE_*_H

Pull Request: https://github.com/llvm/llvm-project/pull/123282

[CMake] Remove some always-true HAVE_XXX_H

These are unneeded even on AIX, PURE_WINDOWS, and ZOS (per #104706)

* HAVE_ERRNO_H: introduced by 1a93330ffa2ae2aa0b49461f05e6f0d51e8443f8 (2009) but unne

[CMake] Remove some always-true HAVE_XXX_H

These are unneeded even on AIX, PURE_WINDOWS, and ZOS (per #104706)

* HAVE_ERRNO_H: introduced by 1a93330ffa2ae2aa0b49461f05e6f0d51e8443f8 (2009) but unneeded.
The guarded ABI is unconditionally used by lldb.
* HAVE_FCNTL_H
* HAVE_FENV_H
* HAVE_SYS_STAT_H

Pull Request: https://github.com/llvm/llvm-project/pull/123087

show more ...

[llvm] Unix.h - Replace report_fatal_error(std::string) with report_fatal_error(Twine)

As described on D111049, we're trying to remove the <string> dependency from error handling and replace uses of

[llvm] Unix.h - Replace report_fatal_error(std::string) with report_fatal_error(Twine)

As described on D111049, we're trying to remove the <string> dependency from error handling and replace uses of report_fatal_error(const std::string&) with the Twine() variant which can be forward declared.

show more ...

[llvm] Replace LLVM_ATTRIBUTE_NORETURN with C++11 [[noreturn]]

[[noreturn]] can be used since Oct 2016 when the minimum compiler requirement was bumped to GCC 4.8/MSVC 2015.

Note: the definition of

[llvm] Replace LLVM_ATTRIBUTE_NORETURN with C++11 [[noreturn]]

[[noreturn]] can be used since Oct 2016 when the minimum compiler requirement was bumped to GCC 4.8/MSVC 2015.

Note: the definition of LLVM_ATTRIBUTE_NORETURN is kept for now.

show more ...

Stop including sys/param.h from Unix.h

Reland "[Support] Add a way to run a function on a detached thread""

This reverts commit 7bc7fe6b789d25d48d6dc71d533a411e9e981237.
The immediate callers have been fixed to pass nullopt where appropr

Reland "[Support] Add a way to run a function on a detached thread""

This reverts commit 7bc7fe6b789d25d48d6dc71d533a411e9e981237.
The immediate callers have been fixed to pass nullopt where appropriate.

show more ...

Revert "[Support] Add a way to run a function on a detached thread"

This reverts commit 40668abca4d307e02b33345cfdb7271549ff48d0.
This causes clang tests to fail, as stacksize=0 is being explicitly

Revert "[Support] Add a way to run a function on a detached thread"

This reverts commit 40668abca4d307e02b33345cfdb7271549ff48d0.
This causes clang tests to fail, as stacksize=0 is being explicitly passed and
is no longer a no-op.

show more ...

[Support] Add a way to run a function on a detached thread

This roughly mimics `std::thread(...).detach()` except it allows to
customize the stack size. Required for https://reviews.llvm.org/D50993.

[Support] Add a way to run a function on a detached thread

This roughly mimics `std::thread(...).detach()` except it allows to
customize the stack size. Required for https://reviews.llvm.org/D50993.

I've decided against reusing the existing `llvm_execute_on_thread` because
it's not obvious what to do with the ownership of the passed
function/arguments:

1. If we pass possibly owning functions data to `llvm_execute_on_thread`,
we'll lose the ability to pass small non-owning non-allocating functions
for the joining case (as it's used now). Is it important enough?
2. If we use the non-owning interface in the new use case, we'll force
clients to transfer ownership to the spawned thread manually, but
similar code would still have to exist inside
`llvm_execute_on_thread(_async)` anyway (as we can't just pass the same
non-owning pointer to pthreads and Windows implementations, and would be
forced to wrap it in some structure, and deal with its ownership.

Patch by Dmitry Kozhevnikov!

Differential Revision: https://reviews.llvm.org/D51103

show more ...

Remove some autoconf references from docs and comments

The autoconf build system support has been removed a while ago, remove
some outdated references.

Differential Revision: https://reviews.llvm.o

Remove some autoconf references from docs and comments

The autoconf build system support has been removed a while ago, remove
some outdated references.

Differential Revision: https://reviews.llvm.org/D63608

llvm-svn: 365013

show more ...

Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the ne

Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636

show more ...

Remove @brief commands from doxygen comments, too.

This is a follow-up to r331272.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into

Remove @brief commands from doxygen comments, too.

This is a follow-up to r331272.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by
for i in $(git grep -l '\@brief'); do perl -pi -e 's/\@brief //g' $i & done

https://reviews.llvm.org/D46290

llvm-svn: 331275

show more ...

Remove TimeValue usage from llvm/Support

Summary:
This is a follow-up to D25416. It removes all usages of TimeValue from
llvm/Support library (except for the actual TimeValue declaration), and repla

Remove TimeValue usage from llvm/Support

Summary:
This is a follow-up to D25416. It removes all usages of TimeValue from
llvm/Support library (except for the actual TimeValue declaration), and replaces
them with appropriate usages of std::chrono. To facilitate this, I have added
small utility functions for converting time points and durations into appropriate
OS-specific types (FILETIME, struct timespec, ...).

Reviewers: zturner, mehdi_amini

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D25730

llvm-svn: 284966

show more ...

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://revi

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

llvm-svn: 279807

show more ...

Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes."

This reverts commit r265454 since it broke the build. E.g.:

http://lab.llvm.org:8080/green/jo

Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes."

This reverts commit r265454 since it broke the build. E.g.:

http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental_build/22413/

llvm-svn: 265459

show more ...

Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes.

Some Include What You Use suggestions were used too.

Use anonymous namespaces in source files.

Different

Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes.

Some Include What You Use suggestions were used too.

Use anonymous namespaces in source files.

Differential revision: http://reviews.llvm.org/D18778

llvm-svn: 265454

show more ...

Remove the configure and cmake checks for sys/wait.h

If we don't have sys/wait.h and we're on a unix system there's no way
that several of the llvm tools work at all. This includes clang.

Just remo

Remove the configure and cmake checks for sys/wait.h

If we don't have sys/wait.h and we're on a unix system there's no way
that several of the llvm tools work at all. This includes clang.

Just remove the configure and cmake checks entirely - we'll get a
build error instead of building something broken now.

llvm-svn: 243957

show more ...

Canonicalize header guards into a common format.

Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we deci

Canonicalize header guards into a common format.

Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

llvm-svn: 215558

show more ...

Fix build on Solaris 11.

Patch by Vladimir Voskresensky. The erros were:

Path.inc:274:3: error: ‘Dl_info’ was not declared in this scope
...

and

usr/include/spawn.h:52:14: error: expected ‘,’ or

Fix build on Solaris 11.

Patch by Vladimir Voskresensky. The erros were:

Path.inc:274:3: error: ‘Dl_info’ was not declared in this scope
...

and

usr/include/spawn.h:52:14: error: expected ‘,’ or ‘...’ before ‘argv’

llvm-svn: 192185

show more ...

Remove dead or useless header checks from cmake and autoconf

On Windows, this improves clean cmake configuration time on my
workstation from 1m58s to 1m32s, which is pretty significant. There's
pro

Remove dead or useless header checks from cmake and autoconf

On Windows, this improves clean cmake configuration time on my
workstation from 1m58s to 1m32s, which is pretty significant. There's
probably more that can be done here, but this is the low hanging fruit.

Eric volunteered to regenerate ./configure for me.

llvm-svn: 187209

show more ...

Sort includes for all of the .h files under the 'lib' tree. These were
missed in the first pass because the script didn't yet handle include
guards.

Note that the script is now able to handle all of

Sort includes for all of the .h files under the 'lib' tree. These were
missed in the first pass because the script didn't yet handle include
guards.

Note that the script is now able to handle all of these headers without
manual edits. =]

llvm-svn: 169224

show more ...

[Support/Unix] Unconditionally include time.h.

When building LLVM on Linux with libc++ with CMake TIME_WITH_SYS_TIME is
undefined, and HAVE_SYS_TIME_H is defined. This ends up including
sys/time.h b

[Support/Unix] Unconditionally include time.h.

When building LLVM on Linux with libc++ with CMake TIME_WITH_SYS_TIME is
undefined, and HAVE_SYS_TIME_H is defined. This ends up including
sys/time.h but not time.h. Unix/TimeValue.inc requires time.h for asctime_r
and localtime. libstdc++ seems to include time.h anyway, but libc++ does
not.

Fix this by always including time.h

llvm-svn: 155382

show more ...

Now to chant the magical incantation that will exorcise the System library
from LLVM forever:

grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'

llvm-svn: 120314

Missed a spot.

llvm-svn: 120301

Merge System into Support.

llvm-svn: 120298