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serenity/Userland/Libraries/LibC
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Daniel Bertalan 08c459e495 LibELF: Add support for IFUNCs 
IFUNC is a GNU extension to the ELF standard that allows a function to
have multiple implementations. A resolver function has to be called at
load time to choose the right one to use. The PLT will contain the entry
to the resolved function, so branching and more indirect jumps can be
avoided at run-time.

This mechanism is usually used when a routine can be made faster using
CPU features that are available in only some models, and a fallback
implementation has to exist for others.

We will use this feature to have two separate memset implementations for
CPUs with and without ERMS (Enhanced REP MOVSB/STOSB) support.
2022-05-01 12:42:01 +02:00
..
arch LibC: Implement _setjmp and _longjmp 2021-12-24 05:26:21 -08:00
arpa Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
bits LibC: Implement __fseterr 2022-04-03 19:15:14 +02:00
net LibC+LibDl: Declare functions taking no arguments as taking void 2022-01-08 19:22:00 +01:00
netinet LibC: Add TCP_MAXSEG to tcp.h 2022-03-02 11:40:37 +01:00
sys LibC: Add MIN, MAX and howmany macros to sys/param.h 2022-04-29 22:01:27 +02:00
alloca.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
assert.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
assert.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
byteswap.h Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
CMakeLists.txt DynamicLoader+LibC+LibTimeZone: Include LibTimeZone sources in LibC 2022-01-23 12:48:26 +00:00
crt0.cpp LibCore+LibC: Enforce the global event loop ban in code 2022-01-23 15:21:10 +01:00
crt0_shared.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
ctype.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ctype.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
cxxabi.cpp LibC: Avoid unnecessary mprotect during program finalization 2021-11-11 09:20:35 +01:00
dirent.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
dirent.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
dlfcn.cpp LibC+LibELF: Implement dladdr() 2021-06-06 22:16:11 +02:00
elf.h LibELF: Add support for IFUNCs 2022-05-01 12:42:01 +02:00
endian.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
errno.h LibC: Implement errno via a __errno_location() function 2022-04-21 11:49:48 +02:00
errno_codes.h Kernel: Remove EWHYTHO error code :^) 2022-01-08 20:10:58 +01:00
fcntl.cpp LibC: Implement posix_fadvise() (as a harmless no-op) 2022-04-29 22:01:30 +02:00
fcntl.h LibC: Add all the POSIX_FADV_* constants 2022-04-30 16:22:40 +02:00
fd_set.h LibC: Remove semicolon in definition of FD_ZERO 2022-03-06 13:00:42 +01:00
fenv.cpp LibC: Actually set the FPU environment instead of its pointer 2022-04-29 22:01:06 +02:00
fenv.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
float.h LibC+LibDl: Declare functions taking no arguments as taking void 2022-01-08 19:22:00 +01:00
fnmatch.cpp Everywhere: Fix more Copyright header inconsistencies 2021-10-04 11:10:09 +01:00
fnmatch.h Everywhere: Fix more Copyright header inconsistencies 2021-10-04 11:10:09 +01:00
getopt.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
getopt.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
grp.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
grp.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
iconv.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ifaddrs.cpp Kernel+LibC: Stub out getifaddrs() and freeifaddrs() 2021-12-22 00:02:36 -08:00
ifaddrs.h Kernel+LibC: Stub out getifaddrs() and freeifaddrs() 2021-12-22 00:02:36 -08:00
inttypes.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
inttypes.h LibC: Use correct inttypes.h format strings on Aarch64 2022-04-23 10:43:32 -07:00
ioctl.cpp LibC: Don't truncate arguments for ioctl() on x86_64 2021-07-22 04:18:39 +04:30
langinfo.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
langinfo.h Everywhere: Fix more Copyright header inconsistencies 2021-10-04 11:10:09 +01:00
libcinit.cpp LibC: Implement errno via a __errno_location() function 2022-04-21 11:49:48 +02:00
libgen.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
libgen.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
limits.h LibC: Unconditionally include bits/posix1_lim.h from limits.h 2022-04-23 10:43:32 -07:00
link.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
link.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
locale.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
locale.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
malloc.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
mallocdefs.h LibC: Increase alignment for malloc() BigAllocationBlocks to 16 bytes 2022-03-02 11:40:37 +01:00
memory.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
mntent.cpp LibC: Remove TODO() macros to not break mc port 2022-01-13 18:46:22 +01:00
mntent.h LibC: Add mntent stub functions 2022-01-07 18:38:32 +01:00
net.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
netdb.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
netdb.h LibC: Make nameinfo (NI_*) constants bitfield-friendly 2022-04-21 11:50:38 +02:00
nl_types.h Everywhere: Fix more Copyright header inconsistencies 2021-10-04 11:10:09 +01:00
paths.h Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
poll.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
poll.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
priority.cpp LibC: Add getpriority() and setpriority() stubs 2021-09-23 18:51:21 +02:00
pthread_forward.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
pthread_integration.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
pthread_tls.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
pty.cpp LibC: Remove debug spam from openpty() 2021-10-26 08:47:06 +02:00
pty.h LibC: Remove 'int* aslave' parameter from forkpty() 2021-05-06 13:52:46 +01:00
pwd.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
pwd.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
qsort.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
regex.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
regex.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
resolv.cpp Everywhere: Fix more Copyright header inconsistencies 2021-10-04 11:10:09 +01:00
resolv.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
scanf.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
sched.cpp LibC: Add POSIX spec comments for sched APIs 2021-12-21 18:16:48 -08:00
sched.h LibC+LibDl: Declare functions taking no arguments as taking void 2022-01-08 19:22:00 +01:00
search.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
search.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
serenity.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
serenity.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
setjmp.h LibC: Implement _setjmp and _longjmp 2021-12-24 05:26:21 -08:00
shadow.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
shadow.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
signal.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
signal.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
signal_numbers.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
spawn.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
spawn.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ssp.cpp Everywhere: Make some symbols __attribute__((used)) for LTO 2021-10-17 17:09:58 +01:00
stat.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
stdarg.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
stddef.h LibC: Define offsetof in stddef.h instead of sys/cdefs.h 2022-02-28 20:28:01 -08:00
stdint.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
stdio.cpp LibC: Implement __fseterr 2022-04-03 19:15:14 +02:00
stdio.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
stdio_ext.h LibC: Implement __fseterr 2022-04-03 19:15:14 +02:00
stdlib.cpp LibC: Stub out posix_memalign() 2022-04-21 11:50:38 +02:00
stdlib.h LibC: Stub out posix_memalign() 2022-04-21 11:50:38 +02:00
string.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
string.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
strings.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
strings.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
stubs.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
sysexits.h LibC: Use EX_IOERR instead of EX_IOER 2021-06-10 20:21:08 +01:00
syslog.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
syslog.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
termcap.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
termcap.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
termios.cpp LibC: Stub out tcsendbreak(..) and tcdrain(..) 2021-12-29 03:17:41 -08:00
termios.h LibC: Stub out tcsendbreak(..) and tcdrain(..) 2021-12-29 03:17:41 -08:00
time.cpp LibC: Return early in time_to_tm for large time_t 2022-04-19 10:06:23 -04:00
time.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
times.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
ulimit.cpp LibC: Add a wrapper for the getrusage syscall 2022-02-28 20:09:37 +01:00
ulimit.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
unistd.cpp Kernel+LibC+LibCore: Implement the unlinkat(2) syscall 2022-04-23 10:43:32 -07:00
unistd.h LibC: Add more _POSIX_FOO constants to unistd.h 2022-04-29 22:01:27 +02:00
utime.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
utime.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
utmp.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
utsname.cpp Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
wchar.cpp LibC: Add POSIX spec links to all applicable wide character functions 2021-12-21 21:24:36 +03:30
wchar.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
wctype.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
wctype.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
wstdio.cpp LibC: Automatically append null terminator in vswprintf 2022-03-20 08:40:36 -04:00