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1829 Commits

Author SHA1 Message Date
Joseph Huber
10445acfa6 [libc] Efficiently implement 'realloc' for AMDGPU devices (#145960) 
Summary:
Now that we have `malloc` we can implement `realloc` efficiently. This
uses the known chunk sizes to avoid unnecessary allocations. We just
return nullptr for NVPTX. I'd remove the list for the entrypoint but
then the libc++ code would stop working. When someone writes the NVPTX
support this will be trivial.
 2025-06-30 08:39:40 -05:00
sribee8
f58caed1bc [libc] Changed CharacterConverter returns (#146130) 
changed internal CharacterConverter returns to return errno macro when
necessary for consistency.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-27 21:50:09 +00:00
sribee8
ac7e391035 [libc] Implemented wcsnlen (#145610) 
Implemented wcsnlen and tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-27 16:51:37 +00:00
sribee8
bd86fc9252 [libc] Error fixes for mbrtowc and wcrtomb (#145785) 
Invalid mbstate_t should set errno to EINVAL.
Changed Error return for the internal functions and added tests for the
public functions.

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-25 21:37:41 +00:00
Uzair Nawaz
2db0289abe [libc] Implemented wctomb (#145554) 
Implemented wctomb by calling internal wcrtomb function
Added tests
 2025-06-25 13:23:47 -07:00
Uzair Nawaz
1c56d101a2 [libc] Added isValidState to CharacterConverter class to ensure a provided mbstate is valid (#145564) 
Added isValidState to CharacterConverter class to ensure a provided
mbstate is valid
 2025-06-25 12:06:22 -07:00
sribee8
bc5e5c0114 [libc] wcpncpy implementation (#145430) 
Implemented wcpncpy and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-23 23:35:28 +00:00
sribee8
10d46cf0d5 [libc] mbtowc implementation (#145405) 
Implemented mbtowcs and tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-23 23:25:13 +00:00
sribee8
b215c8e18f [libc] wcpcpy implementation (#144802) 
Implemented wcpcpy and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-23 18:31:13 +00:00
Uzair Nawaz
a911543437 [libc] Implemented wcrtomb internal function and public libc function (#144596) 
Implemented internal wcrtomb function using the CharacterConverter class
public libc function calls this internal function to perform the
conversion
 2025-06-20 14:43:00 -07:00
sribee8
d078ce7c98 [libc] mbrtowc implementation (#144760) 
implemented the internal and public mbrtowc as well as tests for the
public function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-20 20:00:59 +00:00
Uzair Nawaz
8d6e29d0d3 [libc] Reworked CharacterConverter isComplete into isFull and isEmpty (#144799) 
isComplete previously meant different things for different conversion
directions.
Refactored bytes_processed to bytes_stored which now consistently
increments on every push and decrements on pop making both directions
more consistent with each other
 2025-06-20 16:59:30 +00:00
Aly ElAshram
5645d67109 Implement sigsetjmp and siglongjmp for darwin/aarch64 (#139555) 2025-06-19 09:15:59 -04:00
Alexey Samsonov
7ea710fafa Fix/reapply "[libc] Migrate stdio tests to ErrnoCheckingTest. (#144134) 
This reverts commit 92a116c4ef with a fix
for fgets test - convert nullptr to fgets return type (char*), since the
matcher is pedantic.
 2025-06-17 10:44:21 -07:00
sribee8
e6a41399cb Reland "[libc] utf8 to 32 CharacterConverter" (#144450) 
Reverts llvm/llvm-project#144446
Figured out the issue, so creating a new pull request.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-17 16:24:01 +00:00
sribee8
6e12442354 Revert "[libc] utf8 to 32 CharacterConverter" (#144446) 
Reverts llvm/llvm-project#143973
This merge broke the build and I'm currently looking into the issue to
fix it.
 2025-06-16 22:33:32 +00:00
sribee8
98eee4b554 [libc] utf8 to 32 CharacterConverter (#143973) 
Implemented push and pop for utf8 to 32 conversion and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-16 22:20:08 +00:00
Uzair Nawaz
8adccaee2a [libc] Implemented CharacterConverter push/pop for utf32->utf8 conversions (#143971) 
Implemented CharacterConverter methods for conversion between utf32 ->
utf8
Added tests

---------

Co-authored-by: Michael Jones <michaelrj@google.com>
 2025-06-16 20:06:46 +00:00
sribee8
4cd3e41bce [libc] Removed public function calls in table.h (#144168) 
Removed strcmp, strlen, and memset calls from table.h and replaced them
with internal functions.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-16 18:03:21 +00:00
William Huynh
473dea9b0b [libc] Output all headers with LIBC_CONF_OUTPUT_ALL_HEADERS (#144114) 
Following discussion from
https://discourse.llvm.org/t/missing-declarations-in-header-files/86678,
we decided to add a flag to output all headers. Requires #144049.

- Allows outputting all headers
- Minor whitespace change for alignment

---------

Co-authored-by: Michael Jones <michaelrj@google.com>
 2025-06-13 14:37:25 -07:00
Alexey Samsonov
92a116c4ef Revert "Fix/reapply "[libc] Migrate stdio tests to ErrnoCheckingTest."" (#144129) 
Reverts llvm/llvm-project#143972 - matcher seems to be pedantic for
fgets tests, reverting to verify and fix.
 2025-06-13 10:48:34 -07:00
William Huynh
fd432151a6 [libc] Fix bugs found when testing with all headers (#144049) 
Fixes a couple of bugs found when building. The PR to enable the headers
can be found here: #144114.

- math.yaml: float128 guard
- wchar.yaml: __restrict keyword order
 2025-06-13 10:26:40 -07:00
Alexey Samsonov
c609112a53 Fix/reapply "[libc] Migrate stdio tests to ErrnoCheckingTest." (#143972) 
This reverts commit a93e55e57e and fixes
build and test failures:

* Proper include added to setvbuf_test.cpp
* fgetc/fgetc_unlocked/fgets tests are ported to ErrnoSetterMatcher and
are made more precise. This fixes inconsistencies between expectations
in regular and GPU builds - ErrnoSetterMatcher is configured to omit
errno matching on GPUs, as fgetc implementation on GPU doesn't set
errno, in contrast to Linux.
 2025-06-13 10:25:26 -07:00
Uzair Nawaz
b184672ec7 [libc] Implemented wmemmove (#142245) 
Implemented wmemmove and added tests
 2025-06-13 16:48:24 +00:00
Michael Jones
5a6a4b6ba6 [libc] Implement perror (#143624) 
The perror function writes an error message directly to stderr. This
patch adds an implementation, tests, and header generation details.
 2025-06-12 10:45:47 -07:00
Michael Jones
ae7ea6e3a2 [libc] Fix ioctl errno inclusion (#143928) 
Since errno was moved in
https://github.com/llvm/llvm-project/pull/143187 the code including it
in https://github.com/llvm/llvm-project/pull/141393 was rendered
incorrect. This patch fixes the include and the cmake depends.
 2025-06-12 09:38:43 -07:00
W. Turner Abney
4039fdb7ba [libc] add ioctl (#141393) 
Closes #85275
Closes #90317
Updates #97191

---------

Co-authored-by: Joseph Huber <huberjn@outlook.com>
Co-authored-by: Michael Jones <michaelrj@google.com>
 2025-06-12 09:20:32 -07:00
Alexey Samsonov
a93e55e57e Revert "[libc] Migrate stdio tests to ErrnoCheckingTest." (#143829) 
Reverts llvm/llvm-project#143802. Follow-up fix
3c7af175e5 wasn't robust enough and itself
got reverted.
 2025-06-11 21:33:46 -07:00
Kewen12
a71210e5ab Revert "[libc] Fix stdio tests after #143802" (#143824) 
Reverts llvm/llvm-project#143810 

This PR breaks our buildbot:
https://lab.llvm.org/buildbot/#/builders/10/builds/7159 revert to
unblock downstream merge.
 2025-06-11 23:24:56 -04:00
Michael Jones
3c7af175e5 [libc] Fix stdio tests after #143802 (#143810) 
In #143802 the stdio test cleanup missed a few places where errno was
being set to a failing value, and one where the framework needed to
included.
 2025-06-11 16:52:21 -07:00
Alexey Samsonov
1ecd108cb7 [libc] Migrate stdio tests to ErrnoCheckingTest. (#143802) 
Reduce the direct use of libc_errno in stdio unit tests by adopting
ErrnoCheckingTest where appropriate.

Also removes the libc_errno.h inclusions from stdlib.h tests that were
accidentally added in d87eea35fa
 2025-06-11 16:22:17 -07:00
lntue
d87eea35fa [libc] Move libc_errno.h to libc/src/__support and make LIBC_ERRNO_MODE_SYSTEM to be header-only. (#143187) 
This is the first step in preparation for:
https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
 2025-06-11 16:25:27 -04:00
Alexey Samsonov
5dafe9dca8 [libc] Reduce direct use of errno in src/stdlib and src/__support tests. (#143767) 
* Get rid of libc_errno assignments in str_to_* __support tests, since
those API have been migrated to return error in a struct instead.
* Migrate tests for atof and to strto* functions from <stdlib.h> and for
strdup from <string.h> to use ErrnoCheckingTest harness.
 2025-06-11 12:23:17 -07:00
Amy Huang
1bf4702d2b Disable prctl test when building for arm or riscv. (#143627) 
I'm setting up a buildbot for arm32 using qemu and qemu doesn't support
PR_GET_THP_DISABLE.
Disable the test for now while we figure out what to do about that.

Also disable for riscv because we may do the same for riscv buildbots.
 2025-06-10 16:18:53 -07:00
Joseph Huber
356dc628cb [libc] Missing include in RPC test 2025-06-06 15:45:22 -05:00
lntue
891a0abfc2 [libc] Correct x86_64 architecture for string(s) tests. (#143150) 2025-06-06 11:18:55 -04:00
Aly ElAshram
ff844df719 [libc] Expand usage of libc null checks. (#116262) 
Fixes #111546

---------

Co-authored-by: alyyelashram <150528548+alyyelashram@users.noreply.github.com>
 2025-06-04 13:08:27 -04:00
sribee8
22dd9a2483 [libc] wmemchr implementation (#142640) 
Implemented wmemchr and tests.
Fixes: #121183

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-03 17:05:14 -07:00
sribee8
2ff2a076cc [libc] wcsncpy implementation (#142237) 
Implemented wcsncpy and tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-03 16:37:14 -07:00
sribee8
3887c23059 [libc] wcscat implementation (#142243) 
Implemented wcscat and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-03 09:58:08 -07:00
Uzair Nawaz
c8741851d1 [libc] Implemented wcsncmp (#142429) 
Implemented wcsncmp and added tests
 2025-06-02 16:05:47 -07:00
sribee8
e3d1a33b7e [libc] wcsstr implementation (#142440) 
Implemented wcsstr and tests.
fixes #124348

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-02 16:05:12 -07:00
Uzair Nawaz
45c297428a [libc] added nullptr checks for wcspbrk (#142216) 
Added CRASH_ON_NULLPTR macro to wcspbrk function and related test
 2025-06-02 15:20:53 -07:00
sribee8
9422abf9eb [libc] wcsncat implementation (#142431) 
Implemented wcsncat and tests.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-02 15:20:10 -07:00
Uzair Nawaz
dabe983e7e [libc] Implemented wcsrchr (#142436) 
fixes #124347 
Implemented wcsrchr and added tests
 2025-06-02 15:18:44 -07:00
Uzair Nawaz
62af2a5ae2 [libc] Implemented wcscmp (#142423) 
Implemented wcscmp and added tests
 2025-06-02 15:16:14 -07:00
Uzair Nawaz
c80c452525 [libc] Implemented wmempcpy (#142067) 
Implemented wmempcpy and added tests
 2025-06-02 15:00:46 -07:00
sribee8
e38375310e [libc] wcscpy implementation (#142228) 
Implemented wcscpy as well as tests for the function.

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-06-02 11:20:25 -07:00
wldfngrs
573545c712 [libc][math][c23] Add atanf16() function (#141612) 
- Implementation of atan (tan inverse) function for 16-bit inputs.
- Exhaustive tests across the 16-bit input range
 2025-06-01 13:36:16 +02:00
sribee8
328f40f408 [libc] wmemcmp nullptr handling (#142058) 
Added nullptr handling for wmemcmp

---------

Co-authored-by: Sriya Pratipati <sriyap@google.com>
 2025-05-30 14:38:01 -07:00