mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 06:50:07 +00:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
/* Definition for thread-local data handling. Generic version.
|
|
Copyright (C) 2002-2021 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* An architecture-specific version of this file has to defined a
|
|
number of symbols:
|
|
|
|
TLS_TCB_AT_TP or TLS_DTV_AT_TP
|
|
|
|
The presence of one of these symbols signals which variant of
|
|
the TLS ABI is used. There are in the moment two variants
|
|
available:
|
|
|
|
* the thread pointer points to a thread control block
|
|
|
|
* the thread pointer points to the dynamic thread vector
|
|
|
|
|
|
TLS_TCB_SIZE
|
|
|
|
This is the size of the thread control block structure. How
|
|
this is actually defined depends on the ABI. The thread control
|
|
block could be internal descriptor of the thread library or
|
|
just a data structure which allows finding the DTV.
|
|
|
|
TLS_INIT_TCB_SIZE
|
|
|
|
Similarly, but this value is only used at startup and in the
|
|
dynamic linker itself. There are no threads in use at that time.
|
|
|
|
|
|
TLS_TCB_ALIGN
|
|
|
|
Alignment requirements for the TCB structure.
|
|
|
|
TLS_INIT_TCB_ALIGN
|
|
|
|
Similarly, but for the structure used at startup time.
|
|
|
|
|
|
INSTALL_DTV(tcb, init_dtv)
|
|
|
|
This macro must install the given initial DTV into the thread control
|
|
block TCB. The normal runtime functionality must then be able to
|
|
use the value.
|
|
|
|
|
|
TLS_INIT_TP(tcb)
|
|
|
|
This macro must initialize the thread pointer to enable normal TLS
|
|
operation. The parameter is a pointer to the thread control block.
|
|
ld.so calls this macro once.
|
|
|
|
|
|
THREAD_DTV()
|
|
|
|
This macro returns the address of the DTV of the current thread.
|
|
This normally is done using the thread register which points
|
|
to the dtv or the TCB (from which the DTV can found).
|
|
|
|
|
|
THREAD_GSCOPE_IN_TCB
|
|
|
|
This should be set to 1 if the global scope flag is stored within the TCB.
|
|
When set to 0, GL(_dl_thread_gscope_count) will be defined to store it.
|
|
*/
|