Commit Graph

163 Commits

Author SHA1 Message Date
Alex Brachet a499d68056 [libc] Create abort and _Exit
This revision creates abort and _Exit implementations

Differential Revision: https://reviews.llvm.org/D74949
2020-03-05 14:21:18 -05:00
Alex Brachet cd76a02639 [libc] Add sigprocmask
Summary: This patch adds `sigprocmask`, `sigemptyset` and `sigaddset`

Reviewers: sivachandra, MaskRay, gchatelet

Reviewed By: sivachandra

Subscribers: mgorny, tschuett, libc-commits

Differential Revision: https://reviews.llvm.org/D75026
2020-03-02 03:47:21 -05:00
Alex Brachet 0368997402 [libc] [UnitTest] Create death tests
Summary: This patch adds `EXPECT_EXITS` and `EXPECT_DEATH` macros for testing exit codes and deadly signals. They are less convoluted than their analogs in GTEST and don't have matchers but just take an int for either the exit code or the signal respectively. Nor do they have any regex match against the stdout/stderr of the child process.

Reviewers: sivachandra, gchatelet

Reviewed By: sivachandra

Subscribers: mgorny, MaskRay, tschuett, libc-commits

Differential Revision: https://reviews.llvm.org/D74665
2020-02-24 17:53:43 -05:00
Alex Brachet 5d2baa956a [libc] Add Initial Support for Signals
Summary:
This patch adds signal support on Linux. The current implementation gets the SIG* macros and types like `sigset_t` from <linux/signals.h>

This patch also adds raise(3), and internal routines  `block_all_signals` and `restore_signals`

Reviewers: sivachandra, MaskRay, gchatelet

Reviewed By: sivachandra

Subscribers: libc-commits, mgorny, tschuett

Differential Revision: https://reviews.llvm.org/D74528
2020-02-20 14:05:34 -05:00
Alex Brachet 2c73c26666 [libc] Add Convenience syscall Template Function
Summary: This patch adds a convenience template function so we don't need to cast all types to `long` manually when calling `__llvm_libc::syscall`.

Reviewers: sivachandra, MaskRay, gchatelet

Reviewed By: sivachandra

Subscribers: libc-commits, tschuett

Differential Revision: https://reviews.llvm.org/D74530
2020-02-13 14:39:16 -05:00
Guillaume Chatelet 961aeb7a15
Fix unneeded semi column 2020-02-13 11:18:28 +01:00
Siva Chandra Reddy 2a6ef2aecf [libc] Use cpp::Array instead of cpp::ArrayRef in memory/utils_test.
Building with address-sanitizer shows that using ArrayRef ends up
accessing a temporary outside its scope.
2020-01-31 11:45:09 -08:00
Guillaume Chatelet 85314e9b7a [libc] Add utils for memory functions
Summary: This patch adds a few low level functions needed to build libc memory functions.

Reviewers: sivachandra, jfb

Subscribers: mgorny, MaskRay, tschuett, libc-commits, ckennelly

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D73472
2020-01-31 10:15:02 +01:00
Siva Chandra Reddy ec62bf2fd3 [libc] Move the implementation of mmap and munmap into a linux specific area.
This allows us to get rid of the PAGE_SIZE macro and use EXEC_PAGESIZE
from linux/param.h.

Few other points about this change:
1. The linux syscall functions have been moved into a linux specific area
instead of src/unistd/syscall.h. The Linux syscall function from unistd.h
is a public vararg function. What we have currently are linux speciif internal
overloaded C++ functions. So, moving them to a Linux only area is more
meaningful.
2. The implementations of mmap and munmap are now in a 'linux' directory
within src/sys/mman. The idea here is that platform specific
implementations will live in a platform specific subdirectories like these.
Infrastructure common to a platform will live in the platform's config
directory. For example, the linux syscall implementations live in
config/linux.

Reviewers: abrachet

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D73302
2020-01-24 15:42:28 -08:00
Siva Chandra Reddy c7453fad06 [libc] Replace the use of gtest with a new light weight unittest framework.
Header files included wrongly using <...> are now included using the
internal path names as the new unittest framework allows us to do so.

Reviewers: phosek, abrachet

Differential Revision: https://reviews.llvm.org/D72743
2020-01-17 16:24:53 -08:00
Siva Chandra Reddy 880734aebb [libc] Add a convenience CMake rule to add testsuites.
Summary:
This rule helps avoid repeated setting of check-libc's dependency on the
various testsuites.

Reviewers: abrachet

Subscribers: mgorny, MaskRay, tschuett, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D72353
2020-01-07 23:04:52 -08:00
Siva Chandra Reddy 188f72ab20 [libc] Move implementations of strcat and strcpy to the string directory.
Summary:
Now that tests live in separate top-level directory, keeping the
implementations of individual functions in a directory of their own is
not meaningful. Hence, this change moves them into the higher level
string directory.

NFC intended.

Reviewers: MaskRay

Subscribers: mgorny, tschuett, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D72295
2020-01-06 22:20:42 -08:00
Siva Chandra Reddy 5b24c08817 [libc] Move all tests to a top level `test` directory.
A toplevel target, `check-libc` has also been added.

Reviewers: abrachet, phosek

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D72177
2020-01-06 10:14:43 -08:00