6c3f53c7ba
[libc][NFC] Move test related pieces from FPUtil to util/UnitTest.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D112673
2021-10-29 15:37:30 +00:00
f362aea42d
[libc][NFC] Move utils/CPP to src/__support/CPP.
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The idea is to move all pieces related to the actual libc sources to the
"src" directory. This allows downstream users to ship and build just the
"src" directory.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D112653
2021-10-28 15:50:00 +00:00
00c943a548
[libc] automemcpy
2021-10-28 11:10:15 +00:00
9830518082
[libc][obvious] fix strdup being listed twice
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strdup was being included even if malloc wasn't and that was causing
a build failure.
Differential Revision: https://reviews.llvm.org/D112641
2021-10-27 11:13:08 -07:00
65bb6593e5
[libc] add strdup implementation
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Add an implementation for strdup.
Reviewed By: lntue, sivachandra
Differential Revision: https://reviews.llvm.org/D111584
2021-10-27 10:21:04 -07:00
7dcdbabb3b
[libc] add malloc funcs as external entrypoints
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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
2021-10-27 10:21:01 -07:00
53804d4eb2
[libc] fix strtol returning the wrong length
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Previously, strtol/ll/ul/ull would return a pointer to the end of its
parsing, regardless of if it detected a number. Now it will return a
length of 0 when it doesn't find a number.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D112176
2021-10-25 15:00:45 -07:00
59cf6a7403
[libc][NFC] Remove extra space in libc/CMakeLists.txt
2021-10-25 16:29:14 -04:00
46c82753f6
[libc][NFC] Remove extra slash in path in libc/CMakeLists.txt
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Remove extra `/` in path to match the include filepath from the previous
line.
Differential Revision: https://reviews.llvm.org/D112476
2021-10-25 16:26:49 -04:00
d8e4170b0a
Ensure newlines at the end of files (NFC)
2021-10-23 08:45:29 -07:00
87c016078a
[libc] add atof, strtof and strtod
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Add the string to floating point conversion functions.
Long doubles aren't supported yet, but floats and doubles are. The
primary algorithm used is the Eisel-Lemire ParseNumberF64 algorithm,
with the Simple Decimal Conversion algorithm as backup.
Links for more information on the algorithms:
Number Parsing at a Gigabyte per Second, Software: Practice and
Experience 51 (8), 2021 (https://arxiv.org/abs/2101.11408 )
https://nigeltao.github.io/blog/2020/eisel-lemire.html
https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html
Differential Revision: https://reviews.llvm.org/D109261
2021-10-18 16:10:03 -07:00
4a9bcb605b
[libc] Memory function benchmarks: rename MemcmpConfiguration in MemcmpOrBcmpConfiguration
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This will help make sense of the double use of the same type in https://reviews.llvm.org/D111622#inline-1065560 .
Differential Revision: https://reviews.llvm.org/D111868
2021-10-15 13:42:29 +00:00
db8a88fef8
[libc] add memccpy and mempcpy
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Add an implementation for memccpy and mempcpy. These functions are
posix extensions for the moment.
Reviewed By: lntue
Differential Revision: https://reviews.llvm.org/D111762
2021-10-14 16:38:00 -07:00
9e9803bf82
[libc] Add strncat and fix strcat
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This adds strncat to llvm libc. In addition, an error was found with
strcat and that was fixed.
Reviewed By: lntue
Differential Revision: https://reviews.llvm.org/D111583
2021-10-12 18:18:18 +00:00
ad82fe7b28
[libc] Add rep;movsb as an accelerator under x86
2021-10-08 14:31:55 +00:00
f256c39541
[libc] ifdef guard element architecture implementations
2021-10-08 14:25:26 +00:00
d01ae990e1
Revert "[libc] Add rep;movsb as an accelerator under x86"
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This reverts commit 1c7160300d
2021-10-08 13:44:37 +00:00
1c7160300d
[libc] Add rep;movsb as an accelerator under x86
2021-10-08 13:34:59 +00:00
6f80339b18
[libc][NFC] Add supporting class for atof implementation
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This change adds the High Precision Decimal described here:
https://nigeltao.github.io/blog/2020/parse-number-f64-simple.html
It will be used for the atof implementation later, but is complete and
tested now.
The code is inspired by the golang implmentation of the HPD class, which
can be found here: https://github.com/golang/go/blob/release-branch.go1.16/src/strconv/decimal.go
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D110454
2021-10-04 21:08:02 +00:00
adc18ad6ac
[libc] move benchmark function registration to a different file
2021-09-30 13:11:33 +00:00
b62d72f3c5
[libc] Add support for 128 bit ints in limits.h
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Also, this adds unit tests to check that limits.h complies with the C
standard.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D110643
2021-09-28 23:50:16 +00:00
8379fc4a53
[libc] Add implementations of the C standard condition variable functions.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D108948
2021-09-28 21:18:45 +00:00
5c3c716bb1
[libc] Add FE_DFL_ENV and handle it in fesetenv.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D110611
2021-09-28 18:09:52 +00:00
43c543aab7
[libc][NFC] Make strchr and strrchr more consistent
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Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D110581
2021-09-28 17:42:03 +00:00
5eb6b82729
[libc] Add an implementation of qsort.
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A fuzzer for qsort has also been added.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D110382
2021-09-24 19:22:45 +00:00
8b87c3d573
[libc] Add optimized memset for AArch64
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Differential Revision: https://reviews.llvm.org/D107848
2021-09-23 09:19:47 +01:00
32a5007865
[libc] Add an implementation of bsearch.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D110222
2021-09-22 16:37:03 +00:00
f5b8f1247c
[libc][obvious] Add inttypes.h and stdlib.h as deps to *div functions.
2021-09-20 05:54:32 +00:00
5252aa2981
[libc][obvious] Make *abs and *div functions buildable in default mode.
2021-09-20 05:44:49 +00:00
74670e79b0
[libc] Add implementations of div, ldiv, lldiv and imaxdiv.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D109952
2021-09-20 04:51:42 +00:00
3582828748
[libc][Obvious] Some clean work with memmove.
2021-09-14 17:30:37 +08:00
cc84ce9129
Revert "[libc] Some clean work with memmove."
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This reverts commit b659b789c0
2021-09-13 14:32:08 +00:00
0da5ac1a75
[libc] Add extension functions fedisableexcept, feenableexcept and fegetexcept.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D109613
2021-09-10 18:44:53 +00:00
2fc1913505
[libc] Check signs instead of values in memcmp unittests.
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The C standard only guarantees the sign of return value. The exact return
value is implementation defined.
Reviewed By: gchatelet
Differential Revision: https://reviews.llvm.org/D109588
2021-09-10 18:35:10 +08:00
b659b789c0
[libc] Some clean work with memmove.
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- Replace `move_byte_forward()` with `memcpy`. In `memcpy` implementation,
it copies bytes forward from beginning to end. Otherwise, `memmove` unit
tests will break.
- Make `memmove` unit tests work.
Reviewed By: gchatelet
Differential Revision: https://reviews.llvm.org/D109316
2021-09-10 16:52:42 +08:00
c5cfbe40de
[libc] Skip fenv exception tests on aarch64 if HW doesn't support exceptions.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D109538
2021-09-09 20:47:59 +00:00
219a1d217d
[libc] Fix running benchmarks under msan/asan
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asan/msan intercepts `aligned_malloc` and misbehave when the requested
alignment is greater than 512.
b041b613e6/compiler-rt/lib/asan/asan_allocator.cpp (L430-L431)
2021-09-08 14:43:55 +00:00
2bf8be79b1
[libc][NFC] Add fenv and string headers to x86_64 headers list.
2021-09-07 21:06:39 +00:00
9b015383f1
[libc][Obvious] Reorder CMakelists alphabetically.
2021-09-05 11:01:05 +08:00
7abd8f6c6e
[libc][Obvious] Fix typos
2021-09-05 10:54:52 +08:00
37ce7349f7
[libc] fix strtointeger hex prefix parsing
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Fix edge case where "0x" would be considered a complete hexadecimal
number for purposes of str_end. Now the hexadecimal prefix needs a valid
digit after it, else just the 0 will be counted as the number.
Reviewed By: sivachandra
Differential Revision: https://reviews.llvm.org/D109084
2021-09-03 20:39:15 +00:00
2f4f452f16
[libc] Add a skeleton for C standard condition variable functions.
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This patch adds a skeleton as a preparatory step for the next patch which
adds the actual implementations of the condition variable functions.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D108947
2021-09-01 19:41:52 +00:00
0239adac4a
[libc] Mark return value of memcpy in strcpy as initialized for msan.
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Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D109045
2021-09-01 19:01:25 +00:00
7f2ce19d1c
[libc][nfc][obvious] fix typos in FPUtil
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Fix minor typos in FPUtil comments.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D108952
2021-08-30 22:39:02 +00:00
7a2a765745
[libc] Add mtx_destroy which does nothing.
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There is not cleanup to be done for the mutex type so mtx_destroy does
nothing.
2021-08-30 20:43:46 +00:00
3383ec5fdd
[libc] Ensure the result of the clone syscall is not on stack in thrd_create.
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Also, added a call to munmap on error in thrd_create.
2021-08-30 04:35:40 +00:00
f7e572b4f4
[libc][NFC] Add a check to catch mismatch in internal and public mutex types.
2021-08-30 04:08:35 +00:00
225eb8a22d
[libc][NFC] Fix onre more -Wconversion warning in strtoul test code.
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The last change missed one spot.
Differential Revision: https://reviews.llvm.org/D108845
2021-08-27 14:12:39 -07:00
4e1a164d7b
[libc] Fix various -Wconversion warnings in strto*l test code.
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The Fuchsia build compiles the libc and test code with lots
of warnings enabled, including all the integer conversion warnings.
There was some sloppy type usage here that triggered some of those.
Reviewed By: michaelrj
Differential Revision: https://reviews.llvm.org/D108800
2021-08-27 14:04:00 -07:00
8e284be04f
[libc][Obvious] Add header guards for the generated linux syscall header file.
2021-08-27 16:17:53 +00:00
Siva Chandra Reddy