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bbcdab2baabbaf5a72ab01f40944498743466d69
ladybird/Libraries/LibC
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Brian Gianforcaro bbc7e8429b LibC: Remove duplicate gs touch during gettid()/getpid() fast path 
While profiling I noticed that gettid() was hitting gs register
twice, once for the initial fetch of s_cache_tid out of TLS for
the initialization check, and then again when we return the actual
value.

Optimize the implementation to cache the value so we avoid the
double fetch during the 99% case where it's already set. With
this change gettid() goes from being the 3rd most sampled function
in test-js, to pretty much disappearing into  ~20th place.

Additionally add the same optimization to getpid().
2020-07-23 12:28:11 +02:00
..
arpa
LibC: Add inet_aton, based on inet_pton
2020-05-11 09:50:42 +02:00
bits
Meta: Add a script check the presence of "#pragma once" in header files
2020-05-29 07:59:45 +02:00
net
Meta: Add a script check the presence of "#pragma once" in header files
2020-05-29 07:59:45 +02:00
netinet
LibC: Add IPPORT_RESERVED and IPPORT_USERRESERVED
2020-06-08 21:50:45 +02:00
sys
LibC: add mkfifo(3)
2020-07-19 11:46:37 +02:00
alloca.h
…
assert.cpp
LibC: Remove endless loop after abort() call
2020-05-26 14:35:10 +02:00
assert.h
AK+LibC: Add TODO() as an alternative to ASSERT_NOT_REACHED()
2020-05-30 11:31:49 +02:00
byteswap.h
Meta: Add missing copyright headers
2020-04-06 11:09:01 +02:00
CMakeLists.txt
Toolchain: Allow building using CMake on macOS
2020-07-13 08:46:44 +02:00
crt0.cpp
…
crti.S
…
crtn.S
…
ctype.cpp
Revert "LibC: Implement isblank()"
2020-02-16 10:47:54 +01:00
ctype.h
LibC: Don't let ctype isfoo() helpers access array out of bounds
2020-05-17 22:35:25 +02:00
cxxabi.cpp
Revert "LibC: Implement Itanium C++ ABI for static variable guards"
2020-05-20 16:24:26 +02:00
dirent.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
dirent.h
…
dlfcn.cpp
AK: Rename FileSystemPath -> LexicalPath
2020-05-26 14:35:10 +02:00
dlfcn.h
…
endian.h
LibC: Fix big endian definitions
2020-02-19 16:08:28 +01:00
errno_numbers.h
Kernel+LibC: Remove ESUCCESS
2020-04-10 13:09:35 +02:00
errno.h
…
fcntl.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
fcntl.h
Kernel+LibC: Switch isatty() to use a fcntl()
2020-05-20 08:31:31 +02:00
fd_set.h
…
float.h
Meta: Add a script check the presence of "#pragma once" in header files
2020-05-29 07:59:45 +02:00
getopt.cpp
Meta: Scale back overly informal user-facing strings
2020-06-17 18:35:49 +02:00
getopt.h
LibC: Rewrite getopt()
2020-05-30 15:01:18 +02:00
grp.cpp
AK: Make string-to-number conversion helpers return Optional
2020-06-12 21:28:55 +02:00
grp.h
…
iconv.h
…
inttypes.h
LibC: Add some missing macros to inttypes.h
2020-02-20 06:51:16 +01:00
ioctl.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
libcinit.cpp
LibWeb: Move everything into the Web namespace
2020-03-07 10:27:02 +01:00
libgen.cpp
…
libgen.h
…
limits.h
LibC: Use more flexible digit parsing code, deduplicate
2020-05-11 10:52:24 +02:00
locale.cpp
…
locale.h
…
malloc.cpp
LibC: Make sure malloc chunks are 8-byte aligned
2020-07-21 22:48:17 +02:00
mallocdefs.h
…
memory.h
Meta: Add a script check the presence of "#pragma once" in header files
2020-05-29 07:59:45 +02:00
mman.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
mman.h
Kernel+LibC: Add minherit() and MAP_INHERIT_ZERO
2020-04-12 20:22:26 +02:00
mntent.cpp
…
mntent.h
…
netdb.cpp
AK: Make string-to-number conversion helpers return Optional
2020-06-12 21:28:55 +02:00
netdb.h
LibC: getprotoent() family of functions
2020-04-18 10:11:55 +02:00
poll.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
poll.h
LibC+Kernel: Implement ppoll
2020-06-23 14:12:20 +02:00
pwd.cpp
AK: Make string-to-number conversion helpers return Optional
2020-06-12 21:28:55 +02:00
pwd.h
LibC: Implement putpwent()
2020-02-02 10:58:45 +01:00
qsort.cpp
LibC: Replace Berkley's qsort() with AK::dual_pivot_quick_sort() wrapper
2020-07-03 19:29:36 +02:00
scanf.cpp
…
sched.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
sched.h
…
serenity.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
serenity.h
LibC: Communicate malloc() and free() operations to UserspaceEmulator
2020-07-15 23:25:20 +02:00
setjmp.h
…
setjmp.S
…
signal_numbers.h
…
signal.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
signal.h
LibC: Declare pthread_sigmask() in signal.h.
2020-06-16 09:34:00 +02:00
spawn.cpp
LibC: In posix_spawn(), use _exit instead of exit on child error
2020-06-20 14:43:27 +02:00
spawn.h
Add manpages for posix_spawn
2020-07-06 10:01:14 +02:00
stat.cpp
LibC: add mkfifo(3)
2020-07-19 11:46:37 +02:00
stdarg.h
Kernel: Absorb LibBareMetal back into the kernel
2020-05-16 12:00:04 +02:00
stdbool.h
…
stddef.h
LibC: Move ssize_t from <stddef.h> to <sys/types.h>
2020-05-23 17:03:41 +02:00
stdint.h
…
stdio.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
stdio.h
Kernel+LibC: Fix various build issues introduced by ssize_t
2020-05-23 15:27:33 +02:00
stdlib.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
stdlib.h
LibC: Add posix_openpt(), grantpt() and unlockpt()
2020-02-05 21:17:41 +01:00
string.cpp
LibC: Implement strchrnul()
2020-02-22 21:36:54 +01:00
string.h
LibC: Implement strchrnul()
2020-02-22 21:36:54 +01:00
strings.cpp
…
strings.h
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syslog.cpp
AK: Add a forward declaration header
2020-02-14 23:31:18 +01:00
syslog.h
…
termcap.cpp
…
termcap.h
…
termios.cpp
LibC: Implement tcflush(3)
2020-07-11 11:33:33 +02:00
termios.h
LibC: Implement cf{g,s}et{i,o}speed
2020-07-04 10:49:36 +02:00
time.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
time.h
LibC: Add nanosleep() wrapper around clock_nanosleep(CLOCK_REALTIME)
2020-06-08 21:53:41 +02:00
times.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
ulimit.cpp
LibC: Log calls to getrusage
2020-05-07 23:32:11 +02:00
ulimit.h
…
unistd.cpp
LibC: Remove duplicate gs touch during gettid()/getpid() fast path
2020-07-23 12:28:11 +02:00
unistd.h
LibC+Kernel: Start implementing sysconf
2020-07-15 00:07:20 +02:00
utime.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
utime.h
…
utmp.h
LibC: Add missing <sys/time.h> include in <utmp.h>
2020-05-11 09:50:42 +02:00
utsname.cpp
Kernel: Move headers intended for userspace use into Kernel/API/
2020-07-04 17:22:23 +02:00
wchar.cpp
…
wchar.h
…