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Author SHA1 Message Date
lntue
3c2feab7d1 Revert "[libc] implement ioctl" (#88226) 
Reverts llvm/llvm-project#85890

This fails in full build mode:

https://lab.llvm.org/buildbot/#/builders/163/builds/54478/steps/4/logs/stdio
 2024-04-09 23:48:09 -04:00
Nhat Nguyen
289a2c380e [libc] implement ioctl (#85890) 
This PR is to work on the issue #85275
 2024-04-09 23:38:23 -04:00
aniplcc
8ee6ab7f69 [libc][c23][fenv] implement fesetexcept (#87603) 
Closes #87564
 2024-04-05 13:52:57 -07:00
Shourya Goel
9f0758405b reland: [libc] Added transitive bindings for OffsetType (#87680) 
Followup to issues addressed here: #87397
 2024-04-05 12:11:44 -07:00
Vinayak Dev
3b961d113e [libc] Implement roundeven C23 math functions (#87678) 
Implements the functions `roundeven()`, `roundevenf()`, `roundevenl()`
from the roundeven family of functions introduced in C23. Also
implements `roundevenf128()`.
 2024-04-05 08:36:12 -04:00
OverMighty
a8c59750d9 [libc][math][c23] Add exp2m1f C23 math function (#86996) 
Fixes #86502.

cc @lntue
 2024-04-04 08:22:45 -04:00
Gulfem Savrun Yeniceri
e8aaa3eaed Revert "[libc] Added transitive bindings for OffsetType (#87397)" 
This reverts commit 3ee93f4862
because it broke Fuchsia Clang toolchain builders:
https://logs.chromium.org/logs/fuchsia/buildbucket/cr-buildbucket/8751633430491432833/+/u/clang/build/stdout
 2024-04-04 04:12:36 +00:00
Shourya Goel
3ee93f4862 [libc] Added transitive bindings for OffsetType (#87397) 
Adding OffTType to fcntl.h and stdio.h 's Macro lists in libc/spec/posix.td as
mentioned here: #87266
 2024-04-03 14:16:57 -07:00
Joseph Huber
7327014b49 [libc] Implement temporary printf on the GPU (#85331) 
Summary:
This patch adds a temporary implementation that uses a struct-based
interface in lieu of varargs support. Once varargs support exists we
will move this implementation to the "real" printf implementation.

Conceptually, this patch has the client copy over its format string and
arguments to the server. The server will then scan the format string
searching for any specifiers that are actually a string. If it is a
string then we will send the pointer back to the server to tell it to
copy it back. This copied value will then replace the pointer when the
final formatting is done.

This will require a built-in extension to the varargs support to get
access to the underlying struct. The varargs used on the GPU will simply
be a struct wrapped in a varargs ABI.
 2024-04-02 16:25:18 -05:00
Joseph Huber
6335de4a23 [libc] Disable '_exit' on the GPU build 
Summary:
There are other dependencies to enable `unistd.h` on the GPU which
prevented the header from being generated. This is a POSIX extension and
isn't part of the core `libc`, so we can just disable this for now to
get the bots gree.
 2024-04-02 15:24:06 -05:00
aniplcc
82be6e186b [libc][posix] implement _exit (#87185) 
Fixes  #87126.
 2024-04-02 10:37:42 -07:00
lntue
2be722587f [libc][math] Implement atan2f correctly rounded to all rounding modes. (#86716) 
We compute atan2f(y, x) in 2 stages:
- Fast step: perform computations in double precision , with relative
errors < 2^-50
- Accurate step: if the result from the Fast step fails Ziv's rounding
test, then we perform computations in double-double precision, with
relative errors < 2^-100.

On Ryzen 5900X, worst-case latency is ~ 200 clocks, compared to average
latency ~ 60 clocks, and average reciprocal throughput ~ 20 clocks.
 2024-04-01 13:31:07 -04:00
Shourya Goel
55b74030a4 [libc][POSIX] implement fseeko, ftello (#86928) 
Fixes: #85287
 2024-04-01 10:09:28 -07:00
Schrodinger ZHU Yifan
a8b0ecd260 [libc] enable stack protectors and frame pointers on default (#86288) 2024-03-29 20:17:11 -04:00
Nick Desaulniers
8a071678a9 Revert "[libc][math][c23] Add remaining linux/* entrypoints for {,u}fromfp{,x}* (#86692)" 
This reverts commit cd17082b24 because the newly
added tests fail on 32b ARM.

Link: #86692
Link: https://lab.llvm.org/buildbot/#/builders/229/builds/24458
 2024-03-27 13:28:26 -07:00
OverMighty
cd17082b24 [libc][math][c23] Add remaining linux/* entrypoints for {,u}fromfp{,x}* (#86692) 2024-03-27 12:28:27 -07:00
Shourya Goel
19ca79e867 [libc][math][c23] Implement canonicalize functions (#85940) 
Fixes: #85286
 2024-03-26 08:28:22 -04:00
Job Henandez Lara
3e3f0c3175 [libc][math][c23] add c23 floating point fmaximum and fminimum functions. (#86016) 
Fixes https://github.com/llvm/llvm-project/issues/85496.

---------

Co-authored-by: Job Hernandez <h93@protonmail.com>
 2024-03-25 15:19:10 -04:00
Schrodinger ZHU Yifan
05dc5d927b [libc] add statvfs/fstatvfs (#86169) 
fixes #86449
 2024-03-25 13:37:50 -04:00
OverMighty
b282259711 [libc][math][c23] Add {,u}fromfp{,x}{,f,l,f128} functions (#86003) 
Fixes #85279.

cc @lntue
 2024-03-25 10:26:22 -04:00
Vinayak Dev
83e96977cd [libc] Implement strfromd() and strfroml() (#86113) 
Follow up to #85438.

Implements the functions `strfromd()` and `strfroml()` introduced in
C23, and unifies the testing framework for `strfrom*()` functions.
 2024-03-22 11:39:53 -07:00
aniplcc
c04807c84e [libc][c11] Add stdio.h's rename() function (#85068) 
Adds stdio.h's rename() function as defined in n3096. Fixes  #84980.
 2024-03-21 08:21:06 -07:00
Vinayak Dev
5ea152033e [libc]: Implement strfromf() and shared utilities (#85438) 
Fixes #84244.

Implements the function `strfromf()` introduced in C23, and adds shared
utilities for implementation of other `strfrom*()` functions, including
`strfromd()` and `strfroml()`.
 2024-03-20 10:47:35 -07:00
OverMighty
85b6af198f [libc][math][c23] Add linux/* entrypoints for nextup* and nextdown* (#85803) 
See
https://github.com/llvm/llvm-project/pull/85484#discussion_r1526971653.

There already were entrypoints for linux/x86_64. I haven't tested on the other
targets and will rely on the buildbots.
 2024-03-19 12:47:01 -07:00
Joseph Huber
cf835b96b1 [libc] Remove fileno from GPU entrypoints 2024-03-18 14:52:46 -05:00
Nick Desaulniers
27d7bb8616 [libc] fix up fileno tests (#85660) 
Fixes #85628
 2024-03-18 13:35:44 -04:00
Shourya Goel
ca04b56a8b [libc] Implement fileno (#85628) 
fixes: #85150
 2024-03-18 09:26:30 -07:00
Schrodinger ZHU Yifan
f6f42af06f [libc] Add shm_open/shm_unlink (#84974) 2024-03-18 11:40:07 -04:00
Petr Hosek
5a75242bc8 [libc] Include empty remove in baremetal stdio.h (#85336) 
This is required to avoid compilation error in libc++.

See #85335 for more details.
 2024-03-16 23:17:19 -07:00
Petr Hosek
6666b3fca8 [libc] Match baremetal stdlib.h entrypoints with types 
To match the entrypoints and types we need to exclude __atexithandler_t
and __qsortrcompare_t, as well as qsort_r, which is a GNU extension.

This is a reland of llvm/llvm-project#85030.
 2024-03-16 22:29:11 -07:00
Petr Hosek
8f878c5018 [libc] Include time.h in baremetal targets (#85026) 
These types and conversion functions are used in embedded development.

Note that we cannot yet include other entrypoints such as asctime
because `src/time/time_utils.h` unconditionally uses `EOVERFLOW`, which
is only defined in POSIX and not in C standard. This issue is tracked by
#85556.
 2024-03-16 16:11:04 -07:00
OverMighty
a2bad75879 [libc][math][c23] Add nextupl and nextdownl functions (#85484) 
Fixes #85283.

cc @lntue
 2024-03-16 17:21:07 -04:00
Paul Kirth
6c3049cd68 Revert "[libc] Match stdlib.h baremetal entrypoints with types" (#85490) 
Reverts llvm/llvm-project#85030

This patch causes build failures when building runtimes for armv6m
```
FAILED: /b/s/w/ir/x/w/llvm_build/include/armv6m-unknown-eabi/stdlib.h 
cd /b/s/w/ir/x/w/llvm-llvm-project/libc/include && /b/s/w/ir/x/w/llvm_build/bin/libc-hdrgen -o /b/s/w/ir/x/w/llvm_build/include/armv6m-unknown-eabi/stdlib.h --header stdlib.h --def /b/s/w/ir/x/w/llvm-llvm-project/libc/include/stdlib.h.def -I /b/s/w/ir/x/w/llvm-llvm-project/libc --e=__assert_fail --e=isalnum --e=isalpha --e=isascii --e=isblank --e=iscntrl --e=isdigit --e=isgraph --e=islower --e=isprint --e=ispunct --e=isspace --e=isupper --e=isxdigit --e=toascii --e=tolower --e=toupper --e=__stack_chk_fail --e=errno --e=bcmp --e=bcopy --e=bzero --e=index --e=memccpy --e=memchr --e=memcmp --e=memcpy --e=memmem --e=memmove --e=mempcpy --e=memrchr --e=memset --e=memset_explicit --e=rindex --e=stpcpy --e=stpncpy --e=strcasecmp --e=strcasestr --e=strcat --e=strchr --e=strchrnul --e=strcmp --e=strcoll --e=strcpy --e=strcspn --e=strerror --e=strerror_r --e=strlcat --e=strlcpy --e=strlen --e=strncasecmp --e=strncat --e=strncmp --e=strncpy --e=strnlen --e=strpbrk --e=strrchr --e=strsep --e=strspn --e=strstr --e=strtok --e=strtok_r --e=strxfrm --e=imaxabs --e=imaxdiv --e=strtoimax --e=strtoumax --e=sprintf --e=snprintf --e=vsprintf --e=vsnprintf --e=stdc_leading_zeros_uc --e=stdc_leading_zeros_us --e=stdc_leading_zeros_ui --e=stdc_leading_zeros_ul --e=stdc_leading_zeros_ull --e=stdc_leading_ones_uc --e=stdc_leading_ones_us --e=stdc_leading_ones_ui --e=stdc_leading_ones_ul --e=stdc_leading_ones_ull --e=stdc_trailing_zeros_uc --e=stdc_trailing_zeros_us --e=stdc_trailing_zeros_ui --e=stdc_trailing_zeros_ul --e=stdc_trailing_zeros_ull --e=stdc_trailing_ones_uc --e=stdc_trailing_ones_us --e=stdc_trailing_ones_ui --e=stdc_trailing_ones_ul --e=stdc_trailing_ones_ull --e=stdc_first_leading_zero_uc --e=stdc_first_leading_zero_us --e=stdc_first_leading_zero_ui --e=stdc_first_leading_zero_ul --e=stdc_first_leading_zero_ull --e=stdc_first_leading_one_uc --e=stdc_first_leading_one_us --e=stdc_first_leading_one_ui --e=stdc_first_leading_one_ul --e=stdc_first_leading_one_ull --e=stdc_first_trailing_zero_uc --e=stdc_first_trailing_zero_us --e=stdc_first_trailing_zero_ui --e=stdc_first_trailing_zero_ul --e=stdc_first_trailing_zero_ull --e=stdc_first_trailing_one_uc --e=stdc_first_trailing_one_us --e=stdc_first_trailing_one_ui --e=stdc_first_trailing_one_ul --e=stdc_first_trailing_one_ull --e=stdc_count_zeros_uc --e=stdc_count_zeros_us --e=stdc_count_zeros_ui --e=stdc_count_zeros_ul --e=stdc_count_zeros_ull --e=stdc_count_ones_uc --e=stdc_count_ones_us --e=stdc_count_ones_ui --e=stdc_count_ones_ul --e=stdc_count_ones_ull --e=stdc_has_single_bit_uc --e=stdc_has_single_bit_us --e=stdc_has_single_bit_ui --e=stdc_has_single_bit_ul --e=stdc_has_single_bit_ull --e=stdc_bit_width_uc --e=stdc_bit_width_us --e=stdc_bit_width_ui --e=stdc_bit_width_ul --e=stdc_bit_width_ull --e=stdc_bit_floor_uc --e=stdc_bit_floor_us --e=stdc_bit_floor_ui --e=stdc_bit_floor_ul --e=stdc_bit_floor_ull --e=stdc_bit_ceil_uc --e=stdc_bit_ceil_us --e=stdc_bit_ceil_ui --e=stdc_bit_ceil_ul --e=stdc_bit_ceil_ull --e=abort --e=abs --e=atoi --e=atof --e=atol --e=atoll --e=bsearch --e=div --e=labs --e=ldiv --e=llabs --e=lldiv --e=qsort --e=qsort_r --e=rand --e=srand --e=strtod --e=strtof --e=strtol --e=strtold --e=strtoll --e=strtoul --e=strtoull --e=feclearexcept --e=fedisableexcept --e=feenableexcept --e=fegetenv --e=fegetexcept --e=fegetexceptflag --e=fegetround --e=feholdexcept --e=fesetenv --e=fesetexceptflag --e=fesetround --e=feraiseexcept --e=fetestexcept --e=feupdateenv --e=acosf --e=acoshf --e=asinf --e=asinhf --e=atanf --e=atanhf --e=ceil --e=ceilf --e=ceill --e=copysign --e=copysignf --e=copysignl --e=cosf --e=coshf --e=erff --e=exp --e=exp10 --e=exp10f --e=exp2 --e=exp2f --e=expf --e=expm1 --e=expm1f --e=fabs --e=fabsf --e=fabsl --e=fdim --e=fdimf --e=fdiml --e=floor --e=floorf --e=floorl --e=fma --e=fmaf --e=fmax --e=fmaxf --e=fmaxl --e=fmin --e=fminf --e=fminl --e=fmod --e=fmodf --e=fmodl --e=frexp --e=frexpf --e=frexpl --e=hypot --e=hypotf --e=ilogb --e=ilogbf --e=ilogbl --e=ldexp --e=ldexpf --e=ldexpl --e=llogb --e=llogbf --e=llogbl --e=llrint --e=llrintf --e=llrintl --e=llround --e=llroundf --e=llroundl --e=log --e=log10 --e=log10f --e=log1p --e=log1pf --e=log2 --e=log2f --e=logb --e=logbf --e=logbl --e=logf --e=lrint --e=lrintf --e=lrintl --e=lround --e=lroundf --e=lroundl --e=modf --e=modff --e=modfl --e=nan --e=nanf --e=nanl --e=nearbyint --e=nearbyintf --e=nearbyintl --e=nextafter --e=nextafterf --e=nextafterl --e=nexttoward --e=nexttowardf --e=nexttowardl --e=powf --e=remainder --e=remainderf --e=remainderl --e=remquo --e=remquof --e=remquol --e=rint --e=rintf --e=rintl --e=round --e=roundf --e=roundl --e=scalbn --e=scalbnf --e=scalbnl --e=sincosf --e=sinf --e=sinhf --e=sqrt --e=sqrtf --e=sqrtl --e=tanf --e=tanhf --e=trunc --e=truncf --e=truncl --e=abshk --e=abshr --e=absk --e=absr --e=abslk --e=abslr --e=exphk --e=expk --e=roundhk --e=roundhr --e=roundk --e=roundr --e=roundlk --e=roundlr --e=rounduhk --e=rounduhr --e=rounduk --e=roundur --e=roundulk --e=roundulr --e=sqrtuhk --e=sqrtuhr --e=sqrtuk --e=sqrtur --e=sqrtulr --e=uhksqrtus --e=uksqrtui /b/s/w/ir/x/w/llvm-llvm-project/libc/config/baremetal/api.td
error: __qsortrcompare_t not found in any standard spec.
```
Original failure:
https://ci.chromium.org/ui/p/fuchsia/builders/toolchain.ci/clang-linux-x64/b8753376051397217137/overview
I've tested that reverting this commit would make the build green again.

29c31064b1/+/build.proto
 2024-03-15 17:42:04 -07:00
OverMighty
8ff96eb100 [libc][math][c23] Add nextup{,f,f128} and nextdown{,f,f128} functions (#85431) 
See https://github.com/llvm/llvm-project/issues/85283.

I had a test for `nextdownl` that was failing and I thought I should add
`nextupl` and `nextdownl` later and first make a PR for the other
functions.

cc @lntue
 2024-03-15 16:46:48 -04:00
Petr Hosek
d717e7f7be [libc] Include double_t and float_t in math.h on baremetal (#85028) 
This matches other targets.
 2024-03-15 11:00:19 -07:00
Petr Hosek
500e05f5a2 [libc] Match stdlib.h baremetal entrypoints with types (#85030) 
To match the entrypoints and types for baremetal, we need to include
__qsortrcompare_t and omit __atexithandler_t.
 2024-03-15 10:58:14 -07:00
Petr Hosek
d6722bcbd6 [libc] Move EOF macro to stdio-macros.h (#85159) 
libc++ char_traits.h assumes EOF is always available

See #85158 for more details.
 2024-03-15 10:56:39 -07:00
Michael Flanders
b43965adac [libc][math][c23] adds nanf128 (#85201) 
Continuing #84689, this one required more changes than the others, so I
am making it a separate PR.

Extends some stuff in `str_to_float.h`, `str_to_integer.h` to work on
types wider than `unsigned long long` and `uint64_t`.

cc @lntue for review.
 2024-03-15 13:31:50 -04:00
Nick Desaulniers
9a3000cf67 [libc] roll out rest of stdbit.h entrypoints to gpu,linux,baremetal (#84938) 2024-03-13 08:36:49 -07:00
Petr Hosek
a0283987d0 [libc] Include additional baremetal entrypoints (#85020) 
These functions are usable on embedded platforms and are sometimes used
in various baremetal projects.
 2024-03-12 21:33:49 -07:00
Petr Hosek
e25bf70d50 [libc] Add an empty definition of mbstate_t (#84993) 
We expect to eventually provide a complete implementation, but having an
empty definition is necessary to unblock the use of libc++ in embedded
environments.

See #84884 for more details.
 2024-03-12 21:26:58 -07:00
Michael Flanders
15a55486a5 [libc][math] Adds entrypoint and test for nextafterf128 (#84882) 2024-03-12 23:25:05 -04:00
lntue
4d21e75210 [libc][math][c23] Add fmodl and fmodf128 math functions. (#84600) 
- Allow `FMod` template to have different computational types and make
it work for 80-bit long double.
- Switch to use `uint64_t` as the intermediate computational types for
`float`, significantly reduce the latency of `fmodf` when the exponent
difference is large.
 2024-03-11 16:27:42 -04:00
Schrodinger ZHU Yifan
fe1645e25c [libc][mman] Implement msync (#84700) 
Implement `msync` as specified in:

1. https://www.man7.org/linux/man-pages/man2/msync.2.html
2. https://pubs.opengroup.org/onlinepubs/9699919799/
 2024-03-10 19:01:54 -04:00
Michael Flanders
75b0d384fb [libc][stdbit][c23] adds implementation of stdc_bit_ceil functions (#84657) 
Closes #84652.

Based on #84233.
 2024-03-10 12:53:28 -04:00
lntue
99f5e9634b [libc][math][c23] Add modff128 C23 math function. (#84532) 2024-03-09 11:47:22 -05:00
lntue
60d7bf3dbe [libc][math][c23] Add (l|ll)rintf128 and (l|ll)roundf128 math functions. (#84504) 2024-03-08 12:15:02 -05:00
lntue
14171b87a3 [libc][stdfix] Add exp function for short _Accum and _Accum types. (#84391) 2024-03-07 17:58:28 -05:00
lntue
d0b7022798 [libc] Refactor stdfix extension from llvm_libc_ext.td to llvm_libc_stdfix_ext.td. (#84365) 
This fixes runtime build for armv6 baremetal targets:
https://github.com/llvm/llvm-project/pull/83959#issuecomment-1984221249
 2024-03-07 15:23:37 -05:00
Schrodinger ZHU Yifan
57a337378f [libc][c23] add memset_explicit (#83577) 2024-03-07 14:57:35 -05:00