Commit Graph

27 Commits

Author SHA1 Message Date
Siva Chandra Reddy 3367539010 [libc] Add implementation of pthread_once.
The existing thrd_once function has been refactored so that the
implementation can be shared between thrd_once and pthread_once
functions.

Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D134716
2022-09-28 06:54:48 +00:00
Guillaume Chatelet 1e5b3ce707 [reland][NFC][libc] standardize string_view 2022-08-23 12:40:49 +00:00
Guillaume Chatelet aa59c9810a [libc][NFC] Use STL case for string_view 2022-08-22 15:25:14 +00:00
Michael Jones 0e27dfd560 [libc] add sprintf size comparison
To accurately measure the size of sprintf in a finished binary, the
easiest method is to simply build a binary with and without sprintf.
This patch adds an integration test that can be built with and without
sprintf, as well as targets to build it.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D131735
2022-08-12 11:46:55 -07:00
Siva Chandra Reddy 4a738ee822 [libc] Add implemementations of thread specific data related API.
Specifically, POSIX functions pthread_key_create, pthread_key_delete,
pthread_setspecific and pthread_getspecific have been added. The C
standard equivalents tss_create, tss_delete, tss_set and tss_get have
also been added.

Reviewed By: lntue, michaelrj

Differential Revision: https://reviews.llvm.org/D131647
2022-08-12 05:28:40 +00:00
Siva Chandra Reddy 57afb48057 [libc][Obvious] Fix thrd_join's first arg.
First argument to thrd_join was incorrectly listed as a pointer
to a thrd_t value. It should instead be a thrd_t value argument.
2022-08-11 19:18:11 +00:00
Siva Chandra Reddy 0071a79532 [libc] Add implementation of pthread_exit and thrd_exit.
Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D131451
2022-08-10 06:28:47 +00:00
Siva Chandra Reddy c6dcc359ac [libc] Add __cxa_atexit support to the atexit function.
Reviewed By: abrachet

Differential Revision: https://reviews.llvm.org/D131219
2022-08-09 21:42:41 +00:00
Siva Chandra c9e1ecd46d [libc] Adjust aarch64 startup code to reliably sniff out the start args.
Since this now allows, the init/fini array iteration has been added in
a similar fashion to x86_64 and the corresponding test enabled.

Reviewed By: jeffbailey

Differential Revision: https://reviews.llvm.org/D131133
2022-08-03 23:12:02 -07:00
Siva Chandra f0bb276794 [libc] Disable the loader init_fini_array_test for non-x86_64 targets.
Loader for aarch64 will be extended in a future pass and this test will
be enabled back again.
2022-08-03 12:06:13 -07:00
Siva Chandra Reddy f23076f6c5 [libc] Add init and fini array iteration to the loader.
Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D130966
2022-08-03 17:53:23 +00:00
Siva Chandra Reddy 658c84e415 [libc] Add GNU extension functions pthread_setname_np and pthread_getname_np.
Reviewed By: michaelrj, lntue

Differential Revision: https://reviews.llvm.org/D130872
2022-08-02 01:57:03 +00:00
Siva Chandra Reddy 12df3080fe [libc] Compile integration tests with -ffreestanding to avoid mixup with system libc. 2022-07-30 03:06:08 +00:00
Siva Chandra Reddy 8dc42802f7 [libc] Add implementations of pthread_equal and pthread_self.
Reviewed By: michaelrj, lntue

Differential Revision: https://reviews.llvm.org/D129729
2022-07-14 20:12:35 +00:00
Siva Chandra Reddy 859c189727 [libc] Linux threads - Setup TLS area of a new thread and cleanup at exit.
Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D129543
2022-07-13 20:46:18 +00:00
Siva Chandra Reddy 9b9ff63b03 [libc][NFC] Make thread_detach_test an integration test.
This is simple switch from a unittest to an integration test. It is
being done as a preparatory step to adding TLS support to thread
creation. TLS setup and initialization is tightly coupled with the
loader and hence all thread related tests should be integration tests.
2022-07-11 06:48:54 +00:00
Siva Chandra Reddy 0a537a1299 [libc][NFC] Convert pthread tests which create threads to integration tests. 2022-06-23 20:36:20 +00:00
Siva Chandra Reddy d5475af2f7 [libc][NFC] Convert threads unittests in to integration tests.
This is mostly a mechanical change. In a future pass, all tests from
pthread which create threads will also be converted to integration tests.

Some of thread related features are tightly coupled with the loader. So,
they can only be tested with the in-house loader. Hence, going forward, all
tests which create threads will have to be integration tests.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D128381
2022-06-23 20:32:33 +00:00
Siva Chandra Reddy a5cb6edb47 [libc] Revert: Temporary disable environment tests for PATH variable.
This reverts commit 2846c2bb4f. The reason
for the disable is not relevant anymore.
2022-06-19 21:39:10 +00:00
Tue Ly 2846c2bb4f [libc] Temporary disable environment tests for PATH variable.
This is blocking fullbuild bot.
2022-06-18 23:04:33 -04:00
Siva Chandra be6af89f85 [libc] Add TLS image initialization to aarch64 startup code.
The TLS loader test has been enabled for aarch64.
Handling of PT_TLS' filesz and memsz for x86_64 has also been fixed.

Reviewed By: jeffbailey

Differential Revision: https://reviews.llvm.org/D128032
2022-06-17 22:50:14 -07:00
Siva Chandra Reddy 107ce71849 [libc] Use real objects and archives in integration tests.
Previously, we used empty, non-ELF crti.o, crtn.o, libm.a and libc++.a
files. Instead, we now still use dummies but they are real ELF object
files and archives.
2022-03-24 07:02:33 +00:00
Michael Jones 6d0f5d95ad [libc][obvious] add aligned_alloc as entrypoint
This patch adds aligned_alloc as an entrypoint. Previously it was being
included implicitly.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D122362
2022-03-23 16:44:15 -07:00
Siva Chandra Reddy 316f9fd638 [libc] Link the SCUDO integration tests to a special entrypoint collection.
We were previously linking to libllvmlibc.a. But, with libllvmlibc.a now
including functions which depend on the loader, we will have to use the
LLVM libc loader as well. To avoid this, we will link to a special
library which is just a collection of SCUDO allocator entrypoints.

Reviewed By: michaelrj

Differential Revision: https://reviews.llvm.org/D122360
2022-03-23 23:27:23 +00:00
Siva Chandra Reddy 7fdb50c813 [libc] Add a new rule add_integration_test.
All existing loader tests are switched to an integration test added with
the new rule. Also, the getenv test is now enabled as an integration test.

All loader tests have been moved to test/integration. Also, the simple
checker library for the previous loader tests has been moved to a
separate directory of its own.

A follow up change will perform more cleanup of the loader CMake rules
to eliminate now redundent options.

Reviewed By: lntue, michaelrj

Differential Revision: https://reviews.llvm.org/D122266
2022-03-23 20:57:29 +00:00
Michael Jones 6ce6fa4ad4 [libc] make the scudo integration test run
adds a custom command for libc-scudo-integration-test that makes it run
when it is built.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D108409
2021-08-20 17:51:11 +00:00
Michael Jones 6ed60fb8a2 [libc] add integration tests for scudo in libc
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
2021-08-04 20:06:09 +00:00