- From: Cesar Philippidis <cesar@codesourcery.com>
Date: Tue, 10 Apr 2018 14:43:42 -0700
Subject: [PATCH] nvptx port
This port adds support for Nvidia GPU's, which are primarily used as
offload accelerators in OpenACC and OpenMP.
In preparation for the patch that would allow retargeting of locking
routines, rename all lock objects to follow this pattern:
"__<name>_[recursive_]mutex".
Following locks were renamed:
__dd_hash_lock -> __dd_hash_mutex
__sfp_lock -> __sfp_recursive_mutex
__sinit_lock -> __sinit_recursive_mutex
__atexit_lock -> __atexit_recursive_mutex
_arc4random_mutex -> __arc4random_mutex
__env_lock_object -> __env_recursive_mutex
__malloc_lock_object -> __malloc_recursive_mutex
__atexit_mutex -> __at_quick_exit_mutex
__tz_lock_object -> __tz_mutex
If small reent is enabled (_REENT_SMALL is defined) then malloc() was
used in __register_exitproc() even if user requested it to be disabled
(_ATEXIT_DYNAMIC_ALLOC is defined). With this fix, function fails when
_ATEXIT_DYNAMIC_ALLOC is defined and whole static storage is already
used.
2015-12-21 Freddie Chopin <freddie.chopin@gmail.com>
* libc/stdlib/__atexit.c (__register_exitproc): Fix for
_ATEXIT_DYNAMIC_ALLOC.
2015-12-21 Freddie Chopin <freddie.chopin@gmail.com>
* libc/stdlib/on_exit_args.{c,h}: New files.
* libc/stdlib/Makefile.am: Add new source file.
* libc/stdlib/Makefile.in: Regenerate.
* libc/stdlib/__atexit.c (__register_exitproc): Initialize
_on_exit_args_ptr field of _GLOBAL_ATEXIT on first run.
* libc/stdlib/on_exit.c: Force linking of static instance of
_on_exit_args.
* libc/stdlib/cxa_atexit.c: Likewise.
In some code paths the __atexit_lock held by this function was not
released when returning with an error.
* libc/stdlib/__atexit.c (__register_exitproc): Always release
lock before return.
Lite exit support.
* README: Add information about lite-exit.
* acconfig.h (_LITE_EXIT): New macro.
* configure.in (enable-lite-exit): New option.
(_LITE_EXIT): Define new macro.
* configure: Regenerated.
* newlib.hin (_LITE_EXIT): New macro.
* libc/stdlib/__atexit.c [_LITE_EXIT]: Add dummy explicit
reference to __call_exitprocs.
* libc/stdlib/cxa_atexit.c [_LITE_EXIT]: Make __register_exitproc a
weak reference.
* libc/stdlib/exit.c (exit)[_LITE_EXIT]: Remove TWS and weakly reference
__call_exitprocs.
* libc/include/sys/config.h (_REENT_GLOBAL_ATEXIT): Define for
RTEMS.
* libc/include/sys/reent.h (_reent): Use _REENT_GLOBAL_ATEXIT.
(_global_atexit): Declare if _REENT_GLOBAL_ATEXIT is defined.
* libc/reent/reent.c (_reclaim_reent): Remove atexit cleanup if
_REENT_GLOBAL_ATEXIT is defined.
(_wrapup_reent): Remove atexit handling if _REENT_GLOBAL_ATEXIT
is defined.
* libc/stdlib/__atexit.c (_global_atexit0): Define if
_REENT_GLOBAL_ATEXIT is defined.
* libc/stdlib/__call_atexit.c (_global_atexit): Define if
_REENT_GLOBAL_ATEXIT is defined.
* libc/stdlib/__atexit.c (__atexit_lock): Initialise as recursive
rather than non-recursive lock type.
(__register_exitproc): Use recursive locking APIs on it.
* libc/stdlib/__call_atexit.c (__call_exitprocs): Likewise.
Kazu Hirata <kazu@codesourcery.com>
* libc/stdlib/__atexit.c (__register_exitproc): Use weak reference
to malloc. Allocate dynamically only if it is present.
* libc/stdlib/__call_atexit.c (__call_exitprocs): Use weak
reference to free. Call free only if it is present.
Corinna Vinschen