[libc][NFC] Make all top of file comments consistent.

Summary:
Made all header files consistent based of this documentation: https://llvm.org/docs/CodingStandards.html#file-headers.
And did the same for all source files top of file comments.

Reviewers: sivachandra, abrachet

Reviewed By: sivachandra, abrachet

Subscribers: MaskRay, tschuett, libc-commits

Tags: #libc-project

Differential Revision: https://reviews.llvm.org/D77533

Author: PaulkaToast

libc/config/linux/errno.h.in

@@ -1,4 +1,4 @@
-//===---------------- Linux specific errno.h definitions ------------------===//
+//===-- Linux specific errno.h definitions --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/config/linux/signal.h.in

@@ -1,4 +1,4 @@
-//===---------------- Linux specific signal.h definitions -----------------===//
+//===-- Linux specific signal.h definitions -------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/config/linux/threads.h.in

@@ -1,4 +1,4 @@
-//===--------- Linux specific definitions of types from threads.h ---------===//
+//===-- Linux specific definitions of types from threads.h ----------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/fuzzing/string/strcpy_fuzz.cpp

@@ -1,4 +1,4 @@
-//===--------------------- strcpy_fuzz.cpp --------------------------------===//
+//===-- strcpy_fuzz.cpp ---------------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/__llvm-libc-common.h

@@ -1,4 +1,4 @@
-//===------- Common definitions for LLVM-libc public header files- --------===//
+//===-- Common definitions for LLVM-libc public header files --------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/__posix-types.h

@@ -1,4 +1,4 @@
-//===----------------- Definitions of common POSIX types ------------------===//
+//===-- Definitions of common POSIX types ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/assert.h.def

@@ -1,4 +1,4 @@
-//===---------------- C standard library header assert.h ------------------===//
+//===-- C standard library header assert.h --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/ctype.h

@@ -1,4 +1,4 @@
-//===---------------- C standard library header ctype.h -----------------*-===//
+//===-- C standard library header ctype.h ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/errno.h.def

@@ -1,4 +1,4 @@
-//===---------------- C standard library header errno.h ------------------===//
+//===-- C standard library header errno.h ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/math.h.def

@@ -1,4 +1,4 @@
-//===----------------- C standard library header math.h -----------------*-===//
+//===-- C standard library header math.h ----------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/signal.h.def

@@ -1,4 +1,4 @@
-//===---------------- C standard library header signal.h ------------------===//
+//===-- C standard library header signal.h --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/stdlib.h.def

@@ -1,4 +1,4 @@
-//===---------------- C standard library header stdlib.h ------------------===//
+//===-- C standard library header stdlib.h --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/string.h.def

@@ -1,4 +1,4 @@
-//===---------------- C standard library header string.h ------------------===//
+//===-- C standard library header string.h --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/sys/mman.h.def

@@ -1,4 +1,4 @@
-//===------------------------- POSIX header mman.h ------------------------===//
+//===-- POSIX header mman.h -----------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/sys/syscall.h.def

@@ -1,4 +1,4 @@
-//===---------------------- Linux like sys/syscall.h ----------------------===//
+//===-- Linux like sys/syscall.h ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/include/threads.h.def

@@ -1,4 +1,4 @@
-//===---------------- C standard library header threads.h -----------------===//
+//===-- C standard library header threads.h -------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/loader/linux/x86_64/start.cpp

@@ -1,4 +1,4 @@
-//===------------------ Implementation of crt for x86_64 ------------------===//
+//===-- Implementation of crt for x86_64 ----------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/__support/common.h.def

@@ -1,4 +1,4 @@
-//===-------------------- Common internal contructs ---------------------*-===//
+//===-- Common internal contructs -----------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/assert/__assert_fail.cpp

@@ -1,4 +1,4 @@
-//===----------------- Implementation of __assert_fail --------------------===//
+//===-- Implementation of __assert_fail -----------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/assert/assert.h

@@ -1,4 +1,4 @@
-//===-------------------- Internal header for assert ----------*- C++ -*---===//
+//===-- Internal header for assert ------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/errno/errno_location.cpp

@@ -1,4 +1,4 @@
-//===----------------- Implementation of __errno_location -----------------===//
+//===-- Implementation of __errno_location --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/errno/llvmlibc_errno.h

@@ -1,4 +1,4 @@
-//===------------------ Implementation header for errno -------------------===//
+//===-- Implementation header for errno -------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/math/round.cpp

@@ -1,4 +1,4 @@
-//===---------------------- Implementation of round -----------------------===//
+//===-- Implementation of round -------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/math/round.h

@@ -1,4 +1,4 @@
-//===------------------ Implementation header for round -------------------===//
+//===-- Implementation header for round -------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/math/round_redirector.cpp

@@ -1,4 +1,4 @@
-//===----------------  Implementation of round redirector -----------------===//
+//===-- Implementation of round redirector --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/__restore.cpp

@@ -1,4 +1,4 @@
-//===----------------- Linux implementation of __restore_rt ---------------===//
+//===-- Linux implementation of __restore_rt ------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/raise.cpp

@@ -1,4 +1,4 @@
-//===------------------ Linux implementation of signal --------------------===//
+//===-- Linux implementation of signal ------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/sigaction.cpp

@@ -1,4 +1,4 @@
-//===----------------- Linux implementation of sigaction ------------------===//
+//===-- Linux implementation of sigaction ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/sigaddset.cpp

@@ -1,4 +1,4 @@
-//===----------------- Linux implementation of sigaddset ------------------===//
+//===-- Linux implementation of sigaddset ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/sigdelset.cpp

@@ -1,4 +1,4 @@
-//===----------------- Linux implementation of sigdelset ------------------===//
+//===-- Linux implementation of sigdelset ---------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/sigemptyset.cpp

@@ -1,4 +1,4 @@
-//===--------------- Linux implementation of sigemptyset ------------------===//
+//===-- Linux implementation of sigemptyset -------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/sigfillset.cpp

@@ -1,4 +1,4 @@
-//===----------------- Linux implementation of sigfillset -----------------===//
+//===-- Linux implementation of sigfillset --------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/signal.cpp

@@ -1,4 +1,4 @@
-//===------------------ Linux implementation of signal --------------------===//
+//===-- Linux implementation of signal ------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/signal.h

@@ -1,4 +1,4 @@
-//===----------------- Internal header for Linux signals ------------------===//
+//===-- Internal header for Linux signals -----------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/linux/sigprocmask.cpp

@@ -1,4 +1,4 @@
-//===--------------- Linux implementation of sigprocmask ------------------===//
+//===-- Linux implementation of sigprocmask -------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/raise.h

@@ -1,4 +1,4 @@
-//===------------- Implementation header for raise function ------ *-C++-* ===//
+//===-- Implementation header for raise function ----------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/sigaction.h

@@ -1,4 +1,4 @@
-//===------------ Implementation header for sigaction --------*- C++ -*--===//
+//===-- Implementation header for sigaction ---------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/sigaddset.h

@@ -1,4 +1,4 @@
-//===------------- Implementation header for sigaddset ---------*- C++ -*--===//
+//===-- Implementation header for sigaddset ---------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/sigdelset.h

@@ -1,4 +1,4 @@
-//===------------- Implementation header for sigdelset ---------*- C++ -*--===//
+//===-- Implementation header for sigdelset ---------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/sigemptyset.h

@@ -1,4 +1,4 @@
-//===------------ Implementation header for sigemptyset --------*- C++ -*--===//
+//===-- Implementation header for sigemptyset -------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/sigfillset.h

@@ -1,4 +1,4 @@
-//===------------- Implementation header for sigfillset --------*- C++ -*--===//
+//===-- Implementation header for sigfillset --------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/signal.h

@@ -1,4 +1,4 @@
-//===------------- Implementation header for signal ------------*- C++ -*--===//
+//===-- Implementation header for signal ------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/signal/sigprocmask.h

@@ -1,4 +1,4 @@
-//===------------ Implementation header for sigprocmask --------*- C++ -*--===//
+//===-- Implementation header for sigprocmask -------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/stdlib/_Exit.h

@@ -1,4 +1,4 @@
-//===----------------- Implementation header for _Exit ---------*- C++ -*--===//
+//===-- Implementation header for _Exit -------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/stdlib/abort.cpp

@@ -1,4 +1,4 @@
-//===---------------------- Implementation of abort -----------------------===//
+//===-- Implementation of abort -------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/stdlib/abort.h

@@ -1,4 +1,4 @@
-//===----------------- Implementation header for abort ---------*- C++ -*--===//
+//===-- Implementation header for abort -------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/memcpy.cpp

@@ -1,4 +1,4 @@
-//===--------------------- Implementation of memcpy -----------------------===//
+//===-- Implementation of memcpy ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/memcpy.h

@@ -1,4 +1,4 @@
-//===----------------- Implementation header for memcpy -------------------===//
+//===-- Implementation header for memcpy ------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/memcpy_arch_specific.h.def

@@ -1,4 +1,4 @@
-//===-------------- Implementation of arch specific memcpy ----------------===//
+//===-- Implementation of arch specific memcpy ----------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/memory_utils/cacheline_size.h.def

@@ -1,4 +1,4 @@
-//===---------------------- Cacheline Size Constant -----------------------===//
+//===-- Cacheline Size Constant -------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/memory_utils/memcpy_utils.h

@@ -1,4 +1,4 @@
-//===---------------------------- Memcpy utils ----------------------------===//
+//===-- Memcpy utils --------------------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/memory_utils/utils.h

@@ -1,4 +1,4 @@
-//===---------------------------- Memory utils ----------------------------===//
+//===-- Memory utils --------------------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/strcat.cpp

@@ -1,4 +1,4 @@
-//===-------------------- Implementation of strcat -----------------------===//
+//===-- Implementation of strcat ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/strcat.h

@@ -1,4 +1,4 @@
-//===----------------- Implementation header for strcat -------------------===//
+//===-- Implementation header for strcat ------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/strcpy.cpp

@@ -1,4 +1,4 @@
-//===-------------------- Implementation of strcpy -----------------------===//
+//===-- Implementation of strcpy ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/strcpy.h

@@ -1,4 +1,4 @@
-//===----------------- Implementation header for strcpy -------------------===//
+//===-- Implementation header for strcpy ------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/strlen.cpp

@@ -1,4 +1,4 @@
-//===-------------------- Implementation of strlen ------------------------===//
+//===-- Implementation of strlen ------------------------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/string/strlen.h

@@ -1,4 +1,4 @@
-//===----------------- Implementation header for strlen -------------------===//
+//===-- Implementation header for strlen ------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/sys/mman/mmap.h

@@ -1,4 +1,4 @@
-//===-------------- Implementation header for mmap function ------ *-C++-* ===//
+//===-- Implementation header for mmap function -----------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/sys/mman/munmap.h

@@ -1,4 +1,4 @@
-//===-------------- Implementation header for mumap function ----- *-C++-* ===//
+//===-- Implementation header for mumap function ----------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/threads/linux/mtx_init.cpp

@@ -1,4 +1,4 @@
-//===----------- Linux implementation of the mtx_init function ------------===//
+//===-- Linux implementation of the mtx_init function ---------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.

libc/src/threads/linux/mtx_lock.cpp

@@ -1,4 +1,4 @@
-//===----------- Linux implementation of the mtx_lock function ------------===//
+//===-- Linux implementation of the mtx_lock function ---------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.