3838 Commits

Author SHA1 Message Date
Tristan Ross
1d0f40ba05
[libc] fix generic __stack_check_fail for fuchsia (#121401) 2024-12-31 19:36:24 -05:00
Tristan Ross
6f3d1d3018
[libc] add __stack_chk_guard to generic (#121121) 2024-12-31 02:34:16 -05:00
Roland McGrath
07e13b764d
[libc] Remove unnecessary subdirectory layers in utils/hdrgen (#121363)
Two extra layers of subdirectory for a handful of single-symbol
Python source files did not improve anything, and it complicated
integration of the hdrgen Python outside the LLVM CMake build.
2024-12-30 17:28:59 -08:00
Roland McGrath
9abcca5e25
[libc] Move hdrgen into utils/ subdirectory (#121256) 2024-12-30 15:36:53 -08:00
Roland McGrath
70c9152f99
[libc] Fix non-calls to cpp::is_complex_type_same (#121257)
Some uses were not actually calls, just references to the name.
2024-12-30 14:35:31 -08:00
Schrodinger ZHU Yifan
0b96f1cf68
Revert "[libc] Improve qsort" (#121303)
Reverts llvm/llvm-project#120450
2024-12-29 16:03:53 -05:00
Lukas Bergdoll
d2e71c92b8
[libc] Improve qsort (#120450) 2024-12-29 14:55:44 -05:00
Prabhuk
7deaed975e
[libc] Reduce binary size for baremetal targets (#121164)
For `math` functions we must choose size optimized implementations.
Removing framepointers will also help with binary size savings.
2024-12-26 15:55:39 -08:00
Shourya Goel
9f75b6664f
[libc][complex] fix buildbot errors (#121141)
Fix buildbot errors due to #121140
2024-12-26 12:57:48 +05:30
Shourya Goel
abd9102344
[libc][complex] add cfloat16 and cfloat128 compiler flags (#121140)
Proper fix for the temporary fix in #114696
2024-12-26 12:50:07 +05:30
Shourya Goel
ff97daadcd
Revert "[libc][complex] enable CFP128 entrypoints on X86_64 (#121111)" (#121113)
This reverts commit dd9c5c118230fc9adde668f2c96323b73a677400.
2024-12-25 20:56:13 +05:30
Shourya Goel
dd9c5c1182
[libc][complex] enable CFP128 entrypoints on X86_64 (#121111) 2024-12-25 20:45:32 +05:30
Joseph Huber
3bbd53ce97
[libc] Remove old RPC host call extension for GPU (#120800)
Summary:
This was originally a hacked together function that served to just
implement some features for OpenMP. That has been moved into OpenMP
itself now that we have exported RPC properly. This can now be deleted.
2024-12-20 19:34:05 -06:00
Alexey Samsonov
6ecedb05b0
[libc] Make a couple of math smoke tests more robust. (#120808)
Make sure to clear out all FE_ALL_EXCEPT bits both before and after
invoking function under test -- otherwise the very first check for the
exception bits in the unit test may fail due to bits set prior to test
invocation.
2024-12-20 16:06:20 -08:00
Michael Jones
0a94ee694f
[libc] update host build docs (#120147)
Update the host build docs to better reflect the current recommended
process.
2024-12-19 13:13:55 -08:00
Nick Desaulniers
d2413d4413
[libc][docs] convert stdio.h to docgen (#120334)
Add info from n3220 and POSIX.1-2024.
2024-12-18 09:05:55 -08:00
Joseph Huber
958de20b30
[libc] Enable 'timespec_get' for the GPU build (#120304)
Summary:
Currently fails to build libc++ because this is missing.
2024-12-17 15:31:07 -06:00
Nick Desaulniers
1d06157b9e
[libc] fix -Wgcc-compat (#120303)
I don't quite recall why I added those in the first place. These tests build
without diagnostics for both clang and GCC with this fix.

Fixes: #114653
2024-12-17 13:30:20 -08:00
Shourya Goel
c98e79d856
[libc][complex] Implement different flavors of the cproj function (#119722)
Refer section 7.3.9.5 of ISO/IEC 9899:2023
2024-12-18 02:04:50 +05:30
Roland McGrath
0b91d77bf4
[libc] Use __attribute__((__nothrow__)) for __NOEXCEPT in C (#114653)
Consistent with glibc headers, where `noexcept` is used in C++
(or `throw()` in older C++ which llvm-libc doesn't support) in
the public function declarations, `__attribute__((__nothrow__))` is
used in C for compilers that support it.
2024-12-17 12:18:37 -08:00
Tristan Ross
7477b61b24
[libc] Add unistd overlay (#119312)
Reverts the revert #119295 of #118882 by expanding #118882 with
additional fixes which made CI unhappy.
2024-12-17 10:40:22 -08:00
Nick Desaulniers
4c5ddc9ed4
[libc][docs] add redirect for math/index.html (#120274)
commit a9aff440d9dd ("[libc][docs] reorganize documentation (#118836)")

moved https://libc.llvm.org/math/index.html to
https://libc.llvm.org/headers/math/index.html which makes links from
various slide decks stale.

There's an extension for sphinx that can generate redirects. Add a dependency
on that, then use it to create a redirect so that those older links still work.

I was able to install this sphinx extension via:

    $ sudo apt install python3-sphinx-reredirects

We may need to install this on whatever server generates the llvm
documentation.
2024-12-17 10:37:21 -08:00
Joseph Huber
f6f4744176
[libc] Install RPC server to shared/rpc.h (#120170)
Summary:
This installs the shared header to the users installation. I couldn't
decide if this should be a standalone thing or use the existing support
in `include/` mostly because this is completely separate from hdrgen
stuff and it's C++.
2024-12-17 07:45:13 -06:00
paperchalice
b07e7b76c5
[cmake] Drop AddFileDependencies and CMakeParseArguments (#120002)
Theses modules are deprecated and have trivial implementations in modern
cmake.
2024-12-17 19:24:32 +08:00
Nick Desaulniers
13449c3de4
[libc][docs] split up platform and arch support (#120125)
Creates a new toctree "Support" under which we have distinct links to arch,
platform, and compiler support.

* Moved "Platform Support" from index landing page to new doc.
* Created explicit "Architecture Support". Requested in https://github.com/llvm/llvm-project/issues/118964#issuecomment-2531503046.
* Moved "Compiler Support" from Status toctree to new Support toctree.

---------

Co-authored-by: Carlo Cabrera <github@carlo.cab>
2024-12-16 15:17:18 -08:00
Petr Hosek
51a0919412
[libc] Exclude FreeListHeap test and fuzzer on GPU (#120137)
FreeListHeap uses the _end symbol which conflicts with the _end symbol
defined by GPU start.cpp files so for now we exclude the test and the
fuzzer on GPU.
2024-12-16 13:28:42 -08:00
Nick Desaulniers
750cb896ca
[libc][docs] Refresh landing page (#120122)
- Replace section on ABI Compatibility with a rephrased warning at the
top of
  the page.
- Add links to the Note.
- Update C and POSIX standards.
- Inline link to fuzzing.
2024-12-16 10:47:37 -08:00
Petr Hosek
7bf3137c39
[libc] Breakup freelist_malloc into separate files (#119806)
This better matches the structure we use for the rest of libc.
2024-12-16 10:30:27 -08:00
Schrodinger ZHU Yifan
f75c84674c
[libc] fix atomic and apply an explicit check on unique object representations (#119715) 2024-12-16 12:04:52 -05:00
Joseph Huber
6d1a51303e
[libc][Docs] Update libc documentation for RPC and others (#120018)
Summary:
A few of these were out of date, update them now that the C library
interface into RPC was deleted.
2024-12-16 09:09:19 -06:00
Joseph Huber
9cb68b4dda
[libc] Make the RPC headers work when included from CUDA or HIP (#120016)
Summary:
In order for this to work with CUDA we need to declare functions as
__host__ and __device__ while also making sure we only call the GPU
functions during the CUDA / HIP compile stage.
2024-12-16 09:09:03 -06:00
wldfngrs
6a865b6d3d
[libc][math][c23] Add cosf16 function (#118785) 2024-12-15 18:58:54 +01:00
Jinsong Ji
e85a9f5540
libc: Prefix RPC Status code to avoid conflict in windows build (#119991)
Somehow conflict with define in wingdi.h.

Fix build failures:

[ 52%] Building CXX object
projects/offload/plugins-nextgen/common/CMakeFiles/PluginCommon.dir/src/RPC.cpp.obj
In file included from
...llvm\offload\plugins-nextgen\common\src\RPC.cpp:16:
...\llvm\libc\shared\rpc.h(48,3): error: expected identifier
   48 |   ERROR = 0x1000,
      |   ^
c:\Program files (x86)\Windows
Kits\10\include\10.0.22000.0\um\wingdi.h(118,29): note: expanded from
macro 'ERROR'
  118 | #define ERROR               0
      |                             ^
...\llvm\offload\plugins-nextgen\common\src\RPC.cpp(75,17): error:
expected unqualified-id
   75 |     return rpc::ERROR;
      |                 ^
c:\Program files (x86)\Windows
Kits\10\include\10.0.22000.0\um\wingdi.h(118,29): note: expanded from
macro 'ERROR'
  118 | #define ERROR               0
      |                             ^
2 errors generated.
2024-12-15 09:35:44 -05:00
lntue
e5ab6e9607
[libc][doc] Add links to LLVM dev meeting talks related to LLVM libc. (#119918) 2024-12-13 15:57:31 -05:00
lntue
4eec286b51
[libc] Add MPFR testing infra for float128. (#119499) 2024-12-13 09:32:38 -05:00
Joseph Huber
bd40421ad9
[libc] Stop installing sys/types.h when not requested (#119765)
Summary:
This is installed unconditionally because of the dependency in the
`hdr/` directory. Remove this so it's only used on the systems that need
it.
2024-12-12 15:39:10 -06:00
Petr Hosek
379cc44f56
Revert "[libc] Breakup freelist_malloc into separate files" (#119749)
Reverts llvm/llvm-project#98784 which broke libc builders.
2024-12-12 13:28:30 -08:00
Nick Desaulniers
88bcf7283b
[libc][docs] move docgen from json to yaml (#119744)
That way it can more easily be integrated into hdrgen.
2024-12-12 13:17:51 -08:00
Petr Hosek
4e2a9e50f6
[libc] Breakup freelist_malloc into separate files (#98784)
This better matches the structure we use for the rest of libc.
2024-12-12 11:24:36 -08:00
Nick Desaulniers
c047a5b3f6
[libc][docgen] simplify posix links (#119595)
Usually posix functions have individual doc pages, and each header has its own
list of required macro definitions. Use a simpler key of "in-latest-posix" to
signal that the URL convention can be followed.

Add support for a "removed-in-posix-2008" key which will link to the 2004 docs
for functions like bcmp, bcopy, bzero, index, and rindex from strings.h.

I don't want to add all of these links for pthreads.h, so automating this will
make documenting these go much faster.
2024-12-12 10:49:55 -08:00
Nick Desaulniers
52db903888 [libc][docs] fix typo
Fixes: #119621
2024-12-12 09:48:59 -08:00
Nick Desaulniers
e17d2b585b
[libc][docgen] support non-top-level headers (#119621)
such as arpa/inet, sys/*
2024-12-12 09:21:04 -08:00
Carlo Cabrera
e84566ff2b
[libc] Fail fast when building standalone (#119426)
Building with the source directory rooted in the libc subdirectory isn't
tested in CI and can lead to subtle build problems (cf. #118871).

Let's fail fast with a helpful error message instead to help users
configure libc correctly.

Co-authored-by: Nick Desaulniers <nickdesaulniers@users.noreply.github.com>
2024-12-12 17:17:17 +08:00
Caslyn Tonelli
36c7d147fc
[libc][test] Adjust header paths in tests (#119623)
Since `index_test.cpp` and `rindex_test.cpp` now reside in /strings,
adjust some header paths accordingly.

Link: #118899
2024-12-11 15:02:47 -08:00
Shourya Goel
d5b7b97034
[libc][complex] Add complex.yaml in hdrgen. (#119609) 2024-12-12 03:12:09 +05:30
Nick Desaulniers
02e39a13c3
[libc][docs] split "String Functions" into string.h, strings.h, stdlib.h, and inttypes.h (#118860)
bcmp, bcopy, and bzero should be moved from libc/src/string/ to
lib/src/strings/ in order for docgen to use existing conventions to find
whether we implement a function or not.

We should add support to docgen for mentioning glibc extensions (mempcpy) or
extensions from other libcs.
2024-12-10 12:59:46 -08:00
Nick Desaulniers
d1d5fc381f
[libc] fix up strings.h entrypoints (#119417)
I typo'd riscv, and the newly added baremetal aarch64 entrypoints had a mid air
collision.

Link: #118691
Link: #118899
2024-12-10 10:14:01 -08:00
Nick Desaulniers
1bf1e5f459
[libc] remove old hdrgen diagram (#119424)
FWICT, it was unused even before #117220.

Link: #117220
2024-12-10 10:12:00 -08:00
Nick Desaulniers
8a25398615
[libc] move pthread macros to dedicated header (#119286)
so that docgen can find our definitions.

Also eliminate the enums. POSIX is careful to call these "symbolic constants"
rather than specifically whether they are preprocessor macro defines or not.
Enums are useful to expressing mutual exclusion when the enum values are in
distinct enums which can improve type safety. Our enum values weren't using
that pattern though; they were all in one big anonymous enum.

Link:
https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/pthread.h.html
Fixes: #88997
2024-12-10 09:00:06 -08:00
Nick Desaulniers
1d7d0051f9
[libc] move src/network to src/arpa/inet (#119273)
So that docgen can find our implementations.

Fixes: #119272
2024-12-10 08:59:39 -08:00