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cosmopolitan/libc/isystem
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Justine Tunney 957c61cbbf
Release Cosmopolitan v3.3 
This change upgrades to GCC 12.3 and GNU binutils 2.42. The GNU linker
appears to have changed things so that only a single de-duplicated str
table is present in the binary, and it gets placed wherever the linker
wants, regardless of what the linker script says. To cope with that we
need to stop using .ident to embed licenses. As such, this change does
significant work to revamp how third party licenses are defined in the
codebase, using `.section .notice,"aR",@progbits`.

This new GCC 12.3 toolchain has support for GNU indirect functions. It
lets us support __target_clones__ for the first time. This is used for
optimizing the performance of libc string functions such as strlen and
friends so far on x86, by ensuring AVX systems favor a second codepath
that uses VEX encoding. It shaves some latency off certain operations.
It's a useful feature to have for scientific computing for the reasons
explained by the test/libcxx/openmp_test.cc example which compiles for
fifteen different microarchitectures. Thanks to the upgrades, it's now
also possible to use newer instruction sets, such as AVX512FP16, VNNI.

Cosmo now uses the %gs register on x86 by default for TLS. Doing it is
helpful for any program that links `cosmo_dlopen()`. Such programs had
to recompile their binaries at startup to change the TLS instructions.
That's not great, since it means every page in the executable needs to
be faulted. The work of rewriting TLS-related x86 opcodes, is moved to
fixupobj.com instead. This is great news for MacOS x86 users, since we
previously needed to morph the binary every time for that platform but
now that's no longer necessary. The only platforms where we need fixup
of TLS x86 opcodes at runtime are now Windows, OpenBSD, and NetBSD. On
Windows we morph TLS to point deeper into the TIB, based on a TlsAlloc
assignment, and on OpenBSD/NetBSD we morph %gs back into %fs since the
kernels do not allow us to specify a value for the %gs register.

OpenBSD users are now required to use APE Loader to run Cosmo binaries
and assimilation is no longer possible. OpenBSD kernel needs to change
to allow programs to specify a value for the %gs register, or it needs
to stop marking executable pages loaded by the kernel as mimmutable().

This release fixes __constructor__, .ctor, .init_array, and lastly the
.preinit_array so they behave the exact same way as glibc.

We no longer use hex constants to define math.h symbols like M_PI.
2024-02-20 13:27:59 -08:00
..
arpa Add libresolv from Musl Libc 2023-12-08 20:04:10 -08:00
linux Reduce header complexity 2023-11-28 14:39:42 -08:00
net Get us closer to building busybox 2023-06-18 04:13:45 -07:00
netinet libc headers: make <complex.h> work, add struct ipv6_mreq (#1100) 2024-02-05 17:22:56 -05:00
sys Release Cosmopolitan v3.3 2024-02-20 13:27:59 -08:00
algorithm Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
alloca.h Remove some dead code 2023-07-03 02:48:29 -07:00
ammintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
any Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ar.h Remove some dead code 2023-07-03 02:48:29 -07:00
arm_acle.h Fix some more issues 2023-09-21 11:41:42 -07:00
arm_bf16.h Fix some more issues 2023-09-21 11:41:42 -07:00
arm_fp16.h Fix some more issues 2023-09-21 11:41:42 -07:00
arm_neon.h Fix some more issues 2023-09-21 11:41:42 -07:00
array Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
assert.h Further improve fatcosmocc 2023-08-13 01:51:39 -07:00
atomic Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
bit Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
bitset Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
byteswap.h Clean up more code 2023-06-18 01:00:05 -07:00
cassert Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ccomplex Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cctype Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cerrno Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cfenv Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cfloat Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
charconv Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
chrono Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cinttypes Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ciso646 Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
climits Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
clocale Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
clzerointrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
cmath Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
codecvt Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
compare Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
complex Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
complex.h Clean up more code 2023-06-18 01:00:05 -07:00
condition_variable Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cosmo.h Remove bool from public headers 2023-11-15 20:58:46 -08:00
cpio.h Clean up more code 2023-06-18 01:00:05 -07:00
cpuid.h Clean up more code 2023-06-18 01:00:05 -07:00
crypt.h Clean up more code 2023-06-18 01:00:05 -07:00
csetjmp Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
csignal Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstdarg Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstdbool Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstddef Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstdint Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstdio Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstdlib Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cstring Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ctgmath Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ctime Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ctype.h Clean up more code 2023-06-18 01:00:05 -07:00
cwchar Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cwctype Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
cxxabi.h libc: Fix cxxabi.h header (#1087) 2024-01-15 11:50:38 -08:00
deque Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
dirent.h Clean up more code 2023-06-18 01:00:05 -07:00
dlfcn.h Introduce dlopen() support 2023-11-03 06:37:18 -07:00
elf.h Clean up more code 2023-06-18 01:00:05 -07:00
emmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
endian.h Clean up more code 2023-06-18 01:00:05 -07:00
err.h Clean up more code 2023-06-18 01:00:05 -07:00
errno.h Clean up more code 2023-06-18 01:00:05 -07:00
exception Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
execution Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
fcntl.h Clean up more code 2023-06-18 01:00:05 -07:00
features.h Clean up more code 2023-06-18 01:00:05 -07:00
fenv.h Clean up more code 2023-06-18 01:00:05 -07:00
filesystem Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
float.h Clean up more code 2023-06-18 01:00:05 -07:00
fnmatch.h Clean up more code 2023-06-18 01:00:05 -07:00
forward_list Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
fstream Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ftw.h Make fixes and improvements 2023-07-09 05:21:11 -07:00
functional Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
future Fixes for building superconfigure (#948) 2023-11-11 22:11:11 -08:00
getopt.h Fix getopt again 2023-08-15 20:06:19 -07:00
glob.h Clean up more code 2023-06-18 01:00:05 -07:00
grp.h Clean up more code 2023-06-18 01:00:05 -07:00
iconv.h Clean up more code 2023-06-18 01:00:05 -07:00
ifaddrs.h Introduce getifaddrs() 2023-11-02 08:33:03 -07:00
immintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
initializer_list Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
inttypes.h Clean up more code 2023-06-18 01:00:05 -07:00
iomanip Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ios Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
iosfwd Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
iostream Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
iso646.h Clean up more code 2023-06-18 01:00:05 -07:00
istream Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
iterator Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
langinfo.h Clean up more code 2023-06-18 01:00:05 -07:00
libgen.h Implement more toolchain fixes 2023-06-18 05:39:31 -07:00
limits Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
limits.h Clean up more code 2023-06-18 01:00:05 -07:00
link.h Add <link.h> for absl 2023-12-08 20:04:10 -08:00
list Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
locale Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
locale.h Clean up more code 2023-06-18 01:00:05 -07:00
malloc.h Clean up more code 2023-06-18 01:00:05 -07:00
map Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
math.h Clean up more code 2023-06-18 01:00:05 -07:00
memory Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
memory.h Clean up more code 2023-06-18 01:00:05 -07:00
mm3dnow.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
mm_malloc.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
mmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
mntent.h Make some foss compatibility improvements 2022-10-14 13:59:34 -07:00
monetary.h Greatly expand system() shell code features 2022-10-11 21:30:31 -07:00
mutex Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
mwaitxintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
netdb.h libc headers: make <complex.h> work, add struct ipv6_mreq (#1100) 2024-02-05 17:22:56 -05:00
new Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
nl_types.h Fold LIBC_UNICODE into LIBC_STR 2022-08-13 08:42:32 -07:00
nmmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
nsync.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_atomic.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_counter.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_cv.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_debug.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_mu.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_mu_wait.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_note.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_once.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_time.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
nsync_waiter.h Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
numeric Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
omp-tools.h Fine tune OpenMP some more 2024-01-30 06:30:24 -08:00
omp.h Fine tune OpenMP some more 2024-01-30 06:30:24 -08:00
ompx.h Fine tune OpenMP some more 2024-01-30 06:30:24 -08:00
optional Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ostream Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
paths.h Initial import 2020-06-15 07:18:57 -07:00
pmmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
poll.h Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
popcntintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
pthread.h Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
pty.h Introduce forkpty() 2023-11-28 19:59:57 -08:00
pwd.h Fix isystem headers including wrong files (#108) 2021-03-06 21:06:29 -08:00
queue Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
random Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ratio Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
regex Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
regex.h Initial import 2020-06-15 07:18:57 -07:00
resolv.h Add libresolv from Musl Libc 2023-12-08 20:04:10 -08:00
sched.h Improve cosmo's conformance to libc-test 2022-10-10 17:52:41 -07:00
scoped_allocator Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
search.h Add tsearch from Musl Libc (#912) 2023-10-15 16:50:54 -07:00
semaphore.h Add posix semaphores support 2022-10-14 09:21:02 -07:00
set Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
setjmp.h Clean up more code 2023-06-18 01:00:05 -07:00
sgxintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
shadow.h Import /etc/shadow support from Musl for Linux 2023-12-07 16:26:04 -08:00
shared_mutex Fix #include <shared_mutex> 2023-11-13 08:30:17 -08:00
signal.h Simplify cosmocc builds (#863) 2023-07-23 11:11:08 -07:00
smmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
span Make some fixes for libcxx 2023-07-07 19:35:58 -07:00
spawn.h Make improvements 2023-09-18 21:04:47 -07:00
sstream Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
stack Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
stdalign.h Clean up more code 2023-06-18 01:00:05 -07:00
stdarg.h Make the Windows Console work better 2023-09-07 18:27:22 -07:00
stdatomic.h Clean up more code 2023-06-18 01:00:05 -07:00
stdbool.h Make fatcosmocc good enough to build ncurses 6.4 2023-08-12 22:30:05 -07:00
stdc-predef.h Initial import 2020-06-15 07:18:57 -07:00
stdckdint.h Clean up more code 2023-06-18 01:00:05 -07:00
stddef.h Clean up more code 2023-06-18 01:00:05 -07:00
stdexcept Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
stdint.h Clean up more code 2023-06-18 01:00:05 -07:00
stdio.h Clean up some code 2023-11-16 17:31:07 -08:00
stdio_ext.h Clean up more code 2023-06-18 01:00:05 -07:00
stdlib.h Clean up some code 2023-11-16 17:31:07 -08:00
stdnoreturn.h Clean up more code 2023-06-18 01:00:05 -07:00
streambuf Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
string Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
string.h Clean up more code 2023-06-18 01:00:05 -07:00
string_view Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
strings.h Clean up more code 2023-06-18 01:00:05 -07:00
strstream Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
syscall.h Release Cosmopolitan v3.3 2024-02-20 13:27:59 -08:00
sysexits.h Clean up more code 2023-06-18 01:00:05 -07:00
syslog.h Clean up more code 2023-06-18 01:00:05 -07:00
system_error Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
termios.h Clean up more code 2023-06-18 01:00:05 -07:00
tgmath.h Reduce header complexity 2023-11-28 14:39:42 -08:00
thread Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
time.h Clean up more code 2023-06-18 01:00:05 -07:00
tmmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
tuple Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
type_traits Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
typeindex Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
typeinfo Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
uchar.h Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
ucontext.h Changes made for cosmocc builds (#908) 2023-10-09 14:39:02 -07:00
uio.h Improve isystem includes and magic numbers 2021-08-14 23:36:36 -07:00
unistd.h Changes made for cosmocc builds (#908) 2023-10-09 14:39:02 -07:00
unordered_map Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
unordered_set Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
unwind.h Make improvements 2024-01-29 16:31:58 -08:00
utility Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
utime.h Clean up more code 2023-06-18 01:00:05 -07:00
utmp.h Clean up more code 2023-06-18 01:00:05 -07:00
utmpx.h Clean up more code 2023-06-18 01:00:05 -07:00
valarray Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
variant Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
vector Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
version Add more missing C / C++ headers 2022-09-04 04:53:52 -07:00
wait.h Clean up more code 2023-06-18 01:00:05 -07:00
wchar.h Add Cosmopolitan to uname() 2023-09-21 23:51:55 -07:00
wctype.h Clean up more code 2023-06-18 01:00:05 -07:00
winternl.h Restore strict header checking 2022-08-13 16:02:01 -07:00
wmmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
x86intrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00
xmmintrin.h Add Intel intrinsics headers 2023-04-27 05:44:38 -07:00