delta/llvm.git/libc/lib, branch EmptyLineAfterFunctionDefinition

[libc] add malloc funcs as external entrypoints

2021-10-27T17:21:01+00:00

malloc, calloc, realloc, and free are all functions that other libc
functions depend on, but are pulled from external sources, instead of
having an internal implementation. This patch adds a way to include
functions like that as entrypoints in the list of external entrypoints,
and includes the malloc functions using this new path.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D112104

[libc] add integration tests for scudo in libc

2021-08-04T20:06:09+00:00

This change adds tests to make sure that SCUDO is being properly
included with llvm libc. This change also adds the toggles to properly
use SCUDO, as GWP-ASan is enabled by default and must be included for
SCUDO to function.

Reviewed By: sivachandra, hctim

Differential Revision: https://reviews.llvm.org/D106919

[libc] add scudo wrappers to llvm libc

2021-07-26T17:24:52+00:00

The previous patch included the implementations for the scudo allocator,
but not the wrappers. This change fixes that.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D106718

[libc] add option to use SCUDO as the allocator

2021-07-23T17:36:09+00:00

This patch adds LLVM_LIBC_INCLUDE_SCUDO as a flag. When enabled it
should link in the standalone version of SCUDO as the allocator for LLVM
libc.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D106502

Remove `LIBC_INSTALL_PREFIX`

2021-07-21T23:07:36+00:00

This matches the decision made in D99697.

It also shouldn't reintroduce the issue fixed in D99636.

The variable was originally introduced in
b22f448c21e718a3b6219df89169f38d436189c6 but is not essential to that
change.

Once we finish adding `GnuInstallDirs` support in D100810 and D99484,
setting `CMAKE_INSTALL_LIBDIR` would also work to change the
installation directory (though for more than libc).

`GnuInstallDirs` support also brings up an issue which is avoided if
variables like `LIBC_INSTALL_PREFIX` don't exist. Because the
`GnuInstallDirs` variables can be absolute paths, it is a bit unclear
how the per-project prefixes would work: does the project-agnostic
role-specific variable (e.g. `CMAKE_INSTALL_LIBDIR`), or project-specfic
role-agnostic (e.g. `LIBC_INSTALL_PREFIX`) take priority? Each is more
specific than the other on one axis, but not the other.

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D105740

[libc] Add a target "install-llvmlibc" to install LLVM libc static archive.

2021-03-22T04:45:14+00:00

[libc][NFC] Merge llvmlibc and llvmlibm targets in to a single target.

2021-02-24T05:29:06+00:00

The single target is called llvmlibc. We can add back smaller libm and
other targets in future if required.

[libc] Add implementations of round and roundf.

2020-06-10T06:01:20+00:00

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D80779

[libc] Skip entrypoints not present in the entrypoints list.

2020-06-09T21:40:28+00:00

Summary:
If a test depends on a skipped entrypoint, then the test is also
skipped. This setup will be useful as we gradually add support for
more operating systems and target architectures.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D81489

[libc] Add integration tests.

2020-06-02T19:14:07+00:00

Summary:
This patch aims to add integration tests to check the following:
1) Header files are generated as expected.
2) Libc functions have the correct public name.
3) Libc functions have the correct return type and parameter types.
4) Symbols are exposed in the public lib.a files.

Reviewers: sivachandra, abrachet

Reviewed By: sivachandra

Subscribers: aheejin, ecnelises, dxf, mgorny, jfb, tschuett, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D79192