Skip to content
Navigation Menu
Toggle navigation
Sign in
In this repository
All GitHub Enterprise
↵
Jump to
↵
No suggested jump to results
In this repository
All GitHub Enterprise
↵
Jump to
↵
In this organization
All GitHub Enterprise
↵
Jump to
↵
In this repository
All GitHub Enterprise
↵
Jump to
↵
Sign in
Reseting focus
You signed in with another tab or window.
Reload
to refresh your session.
You signed out in another tab or window.
Reload
to refresh your session.
You switched accounts on another tab or window.
Reload
to refresh your session.
Dismiss alert
{{ message }}
git-mirror
/
glibc
Public
Notifications
You must be signed in to change notification settings
Fork
0
Star
0
Code
Pull requests
0
Actions
Projects
0
Security
Insights
Additional navigation options
Code
Pull requests
Actions
Projects
Security
Insights
Files
027dc27
abilist
aout
argp
assert
bits
c_stubs
catgets
conf
conform
crypt
csu
ctype
debug
dirent
dlfcn
elf
fedora
gmon
gnulib
grp
hesiod
hurd
iconv
iconvdata
include
inet
intl
io
libidn
libio
locale
localedata
login
mach
malloc
manual
math
misc
nis
nptl
sysdeps
alpha
i386
ia64
powerpc
Makefile
pthread_spin_lock.c
pthread_spin_trylock.c
pthreaddef.h
tcb-offsets.sym
tls.h
pthread
s390
sh
sparc
unix
x86_64
ANNOUNCE
Banner
ChangeLog
DESIGN-barrier.txt
DESIGN-condvar.txt
DESIGN-rwlock.txt
DESIGN-sem.txt
Makeconfig
Makefile
TODO
TODO-kernel
TODO-testing
Versions
alloca_cutoff.c
allocatestack.c
cancellation.c
cleanup.c
cleanup_compat.c
cleanup_defer.c
cleanup_defer_compat.c
cleanup_routine.c
cond-perf.c
configure
descr.h
eintr.c
errno-loc.c
events.c
forward.c
herrno.c
init.c
libc-cancellation.c
lowlevellock.h
old_pthread_atfork.c
old_pthread_cond_broadcast.c
old_pthread_cond_destroy.c
old_pthread_cond_init.c
old_pthread_cond_signal.c
old_pthread_cond_timedwait.c
old_pthread_cond_wait.c
perf.c
pt-allocrtsig.c
pt-cleanup.c
pt-raise.c
pt-system.c
pthread-errnos.sym
pthreadP.h
pthread_atfork.c
pthread_attr_destroy.c
pthread_attr_getdetachstate.c
pthread_attr_getguardsize.c
pthread_attr_getinheritsched.c
pthread_attr_getschedparam.c
pthread_attr_getschedpolicy.c
pthread_attr_getscope.c
pthread_attr_getstack.c
pthread_attr_getstackaddr.c
pthread_attr_getstacksize.c
pthread_attr_init.c
pthread_attr_setdetachstate.c
pthread_attr_setguardsize.c
pthread_attr_setinheritsched.c
pthread_attr_setschedparam.c
pthread_attr_setschedpolicy.c
pthread_attr_setscope.c
pthread_attr_setstack.c
pthread_attr_setstackaddr.c
pthread_attr_setstacksize.c
pthread_barrier_destroy.c
pthread_barrier_init.c
pthread_barrier_wait.c
pthread_barrierattr_destroy.c
pthread_barrierattr_getpshared.c
pthread_barrierattr_init.c
pthread_barrierattr_setpshared.c
pthread_cancel.c
pthread_clock_gettime.c
pthread_clock_settime.c
pthread_cond_broadcast.c
pthread_cond_destroy.c
pthread_cond_init.c
pthread_cond_signal.c
pthread_cond_timedwait.c
pthread_cond_wait.c
pthread_condattr_destroy.c
pthread_condattr_getclock.c
pthread_condattr_getpshared.c
pthread_condattr_init.c
pthread_condattr_setclock.c
pthread_condattr_setpshared.c
pthread_create.c
pthread_detach.c
pthread_equal.c
pthread_exit.c
pthread_getattr_np.c
pthread_getconcurrency.c
pthread_getcpuclockid.c
pthread_getschedparam.c
pthread_getspecific.c
pthread_join.c
pthread_key_create.c
pthread_key_delete.c
pthread_kill_other_threads.c
pthread_mutex_consistent.c
pthread_mutex_destroy.c
pthread_mutex_getprioceiling.c
pthread_mutex_init.c
pthread_mutex_lock.c
pthread_mutex_setprioceiling.c
pthread_mutex_timedlock.c
pthread_mutex_trylock.c
pthread_mutex_unlock.c
pthread_mutexattr_destroy.c
pthread_mutexattr_getprioceiling.c
pthread_mutexattr_getprotocol.c
pthread_mutexattr_getpshared.c
pthread_mutexattr_getrobust.c
pthread_mutexattr_gettype.c
pthread_mutexattr_init.c
pthread_mutexattr_setprioceiling.c
pthread_mutexattr_setprotocol.c
pthread_mutexattr_setpshared.c
pthread_mutexattr_setrobust.c
pthread_mutexattr_settype.c
pthread_once.c
pthread_rwlock_destroy.c
pthread_rwlock_init.c
pthread_rwlock_rdlock.c
pthread_rwlock_timedrdlock.c
pthread_rwlock_timedwrlock.c
pthread_rwlock_tryrdlock.c
pthread_rwlock_trywrlock.c
pthread_rwlock_unlock.c
pthread_rwlock_wrlock.c
pthread_rwlockattr_destroy.c
pthread_rwlockattr_getkind_np.c
pthread_rwlockattr_getpshared.c
pthread_rwlockattr_init.c
pthread_rwlockattr_setkind_np.c
pthread_rwlockattr_setpshared.c
pthread_self.c
pthread_setcancelstate.c
pthread_setcanceltype.c
pthread_setconcurrency.c
pthread_setegid.c
pthread_seteuid.c
pthread_setgid.c
pthread_setregid.c
pthread_setresgid.c
pthread_setresuid.c
pthread_setreuid.c
pthread_setschedparam.c
pthread_setschedprio.c
pthread_setspecific.c
pthread_setuid.c
pthread_spin_destroy.c
pthread_spin_init.c
pthread_spin_unlock.c
pthread_testcancel.c
pthread_timedjoin.c
pthread_tryjoin.c
res.c
sem_close.c
sem_destroy.c
sem_getvalue.c
sem_init.c
sem_open.c
sem_unlink.c
semaphore.h
semaphoreP.h
shlib-versions
sigaction.c
sockperf.c
tpp.c
tst-_res1.c
tst-_res1mod1.c
tst-_res1mod2.c
tst-align.c
tst-align2.c
tst-align3.c
tst-atfork1.c
tst-atfork2.c
tst-atfork2mod.c
tst-attr1.c
tst-attr2.c
tst-attr3.c
tst-backtrace1.c
tst-barrier1.c
tst-barrier2.c
tst-barrier3.c
tst-barrier4.c
tst-basic1.c
tst-basic2.c
tst-basic3.c
tst-basic4.c
tst-basic5.c
tst-basic6.c
tst-cancel-wrappers.sh
tst-cancel1.c
tst-cancel10.c
tst-cancel11.c
tst-cancel12.c
tst-cancel13.c
tst-cancel14.c
tst-cancel15.c
tst-cancel16.c
tst-cancel17.c
tst-cancel18.c
tst-cancel19.c
tst-cancel2.c
tst-cancel20.c
tst-cancel21.c
tst-cancel22.c
tst-cancel23.c
tst-cancel24.cc
tst-cancel25.c
tst-cancel3.c
tst-cancel4.c
tst-cancel5.c
tst-cancel6.c
tst-cancel7.c
tst-cancel8.c
tst-cancel9.c
tst-cancelx1.c
tst-cancelx10.c
tst-cancelx11.c
tst-cancelx12.c
tst-cancelx13.c
tst-cancelx14.c
tst-cancelx15.c
tst-cancelx16.c
tst-cancelx17.c
tst-cancelx18.c
tst-cancelx2.c
tst-cancelx20.c
tst-cancelx21.c
tst-cancelx3.c
tst-cancelx4.c
tst-cancelx5.c
tst-cancelx6.c
tst-cancelx7.c
tst-cancelx8.c
tst-cancelx9.c
tst-cleanup0.c
tst-cleanup0.expect
tst-cleanup1.c
tst-cleanup2.c
tst-cleanup3.c
tst-cleanup4.c
tst-cleanup4aux.c
tst-cleanupx0.c
tst-cleanupx0.expect
tst-cleanupx1.c
tst-cleanupx2.c
tst-cleanupx3.c
tst-cleanupx4.c
tst-clock1.c
tst-clock2.c
tst-cond1.c
tst-cond10.c
tst-cond11.c
tst-cond12.c
tst-cond13.c
tst-cond14.c
tst-cond15.c
tst-cond16.c
tst-cond17.c
tst-cond18.c
tst-cond19.c
tst-cond2.c
tst-cond20.c
tst-cond21.c
tst-cond22.c
tst-cond3.c
tst-cond4.c
tst-cond5.c
tst-cond6.c
tst-cond7.c
tst-cond8.c
tst-cond9.c
tst-context1.c
tst-detach1.c
tst-dlsym1.c
tst-eintr1.c
tst-eintr2.c
tst-eintr3.c
tst-eintr4.c
tst-eintr5.c
tst-exec1.c
tst-exec2.c
tst-exec3.c
tst-exec4.c
tst-execstack-mod.c
tst-execstack.c
tst-exit1.c
tst-exit2.c
tst-exit3.c
tst-fini1.c
tst-fini1mod.c
tst-flock1.c
tst-flock2.c
tst-fork1.c
tst-fork2.c
tst-fork3.c
tst-fork4.c
tst-getpid1.c
tst-getpid2.c
tst-getpid3.c
tst-initializers1-c89.c
tst-initializers1-c99.c
tst-initializers1-gnu89.c
tst-initializers1-gnu99.c
tst-initializers1.c
tst-join1.c
tst-join2.c
tst-join3.c
tst-join4.c
tst-join5.c
tst-join6.c
tst-key1.c
tst-key2.c
tst-key3.c
tst-key4.c
tst-kill1.c
tst-kill2.c
tst-kill3.c
tst-kill4.c
tst-kill5.c
tst-kill6.c
tst-locale1.c
tst-locale2.c
tst-mutex1.c
tst-mutex2.c
tst-mutex3.c
tst-mutex4.c
tst-mutex5.c
tst-mutex5a.c
tst-mutex6.c
tst-mutex7.c
tst-mutex7a.c
tst-mutex8.c
tst-mutex9.c
tst-mutexpi1.c
tst-mutexpi2.c
tst-mutexpi3.c
tst-mutexpi4.c
tst-mutexpi5.c
tst-mutexpi5a.c
tst-mutexpi6.c
tst-mutexpi7.c
tst-mutexpi7a.c
tst-mutexpi8.c
tst-mutexpi9.c
tst-mutexpp1.c
tst-mutexpp10.c
tst-mutexpp6.c
tst-oddstacklimit.c
tst-once1.c
tst-once2.c
tst-once3.c
tst-once4.c
tst-oncex3.c
tst-oncex4.c
tst-popen1.c
tst-raise1.c
tst-robust1.c
tst-robust2.c
tst-robust3.c
tst-robust4.c
tst-robust5.c
tst-robust6.c
tst-robust7.c
tst-robust8.c
tst-robust9.c
tst-robustpi1.c
tst-robustpi2.c
tst-robustpi3.c
tst-robustpi4.c
tst-robustpi5.c
tst-robustpi6.c
tst-robustpi7.c
tst-robustpi8.c
tst-robustpi9.c
tst-rwlock1.c
tst-rwlock10.c
tst-rwlock11.c
tst-rwlock12.c
tst-rwlock13.c
tst-rwlock14.c
tst-rwlock2.c
tst-rwlock3.c
tst-rwlock4.c
tst-rwlock5.c
tst-rwlock6.c
tst-rwlock7.c
tst-rwlock8.c
tst-rwlock9.c
tst-sched1.c
tst-sem1.c
tst-sem10.c
tst-sem2.c
tst-sem3.c
tst-sem4.c
tst-sem5.c
tst-sem6.c
tst-sem7.c
tst-sem8.c
tst-sem9.c
tst-setuid1-static.c
tst-setuid1.c
tst-signal1.c
tst-signal2.c
tst-signal3.c
tst-signal4.c
tst-signal5.c
tst-signal6.c
tst-signal7.c
tst-spin1.c
tst-spin2.c
tst-spin3.c
tst-stack1.c
tst-stack2.c
tst-stack3.c
tst-stackguard1-static.c
tst-stackguard1.c
tst-stdio1.c
tst-stdio2.c
tst-sysconf.c
tst-tls1.c
tst-tls2.c
tst-tls3.c
tst-tls3mod.c
tst-tls4.c
tst-tls4moda.c
tst-tls4modb.c
tst-tls5.c
tst-tls5.h
tst-tls5mod.c
tst-tls5moda.c
tst-tls5modb.c
tst-tls5modc.c
tst-tls5modd.c
tst-tls5mode.c
tst-tls5modf.c
tst-tls6.sh
tst-tpp.h
tst-tsd1.c
tst-tsd2.c
tst-tsd3.c
tst-tsd4.c
tst-tsd5.c
tst-typesizes.c
tst-umask1.c
tst-unload.c
tst-vfork1.c
tst-vfork1x.c
tst-vfork2.c
tst-vfork2x.c
unwind.c
vars.c
version.c
nptl_db
nscd
nss
po
posix
powerpc-cpu
pwd
resolv
resource
rt
rtkaio
scripts
setjmp
shadow
signal
socket
soft-fp
stdio-common
stdlib
streams
string
sunrpc
sysdeps
sysvipc
termios
time
timezone
wcsmbs
wctype
.cvsignore
BUGS
CANCEL-FCT-WAIVE
CANCEL-FILE-WAIVE
CONFORMANCE
COPYING
COPYING.LIB
ChangeLog
ChangeLog.1
ChangeLog.10
ChangeLog.11
ChangeLog.12
ChangeLog.13
ChangeLog.14
ChangeLog.15
ChangeLog.16
ChangeLog.2
ChangeLog.3
ChangeLog.4
ChangeLog.5
ChangeLog.6
ChangeLog.7
ChangeLog.8
ChangeLog.9
FAQ
FAQ.in
INSTALL
LICENSES
Makeconfig
Makefile
Makefile.in
Makerules
NAMESPACE
NEWS
NOTES
PROJECTS
README
README.libm
README.template
Rules
Versions.def
WUR-REPORT
abi-tags
aclocal.m4
config-name.in
config.h.in
config.make.in
configure
configure.in
cppflags-iterator.mk
extra-lib.mk
extra-modules.mk
o-iterator.mk
shlib-versions
test-skeleton.c
tls.make.c
version.h
Breadcrumbs
glibc
/
nptl
/
sysdeps
/
powerpc
/
tls.h
Blame
Blame
Latest commit
History
History
208 lines (168 loc) · 6.98 KB
Breadcrumbs
glibc
/
nptl
/
sysdeps
/
powerpc
/
tls.h
Top
File metadata and controls
Code
Blame
208 lines (168 loc) · 6.98 KB
Raw
/* Definition for thread-local data handling. NPTL/PowerPC version. Copyright (C) 2003, 2005, 2006, 2007 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #ifndef _TLS_H #define _TLS_H 1 # include <dl-sysdep.h> #ifndef __ASSEMBLER__ # include <stdbool.h> # include <stddef.h> # include <stdint.h> /* Type for the dtv. */ typedef union dtv { size_t counter; struct { void *val; bool is_static; } pointer; } dtv_t; #else /* __ASSEMBLER__ */ # include <tcb-offsets.h> #endif /* __ASSEMBLER__ */ /* We require TLS support in the tools. */ #ifndef HAVE_TLS_SUPPORT # error "TLS support is required." #endif #ifndef __ASSEMBLER__ /* Get system call information. */ # include <sysdep.h> /* The TP points to the start of the thread blocks. */ # define TLS_DTV_AT_TP 1 /* We use the multiple_threads field in the pthread struct */ #define TLS_MULTIPLE_THREADS_IN_TCB 1 /* Get the thread descriptor definition. */ # include <nptl/descr.h> /* The stack_guard is accessed directly by GCC -fstack-protector code, so it is a part of public ABI. The dtv and pointer_guard fields are private. */ typedef struct { uintptr_t pointer_guard; uintptr_t stack_guard; dtv_t *dtv; } tcbhead_t; /* This is the size of the initial TCB. */ # define TLS_INIT_TCB_SIZE 0 /* Alignment requirements for the initial TCB. */ # define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread) /* This is the size of the TCB. */ # define TLS_TCB_SIZE 0 /* Alignment requirements for the TCB. */ # define TLS_TCB_ALIGN __alignof__ (struct pthread) /* This is the size we need before TCB. */ # define TLS_PRE_TCB_SIZE \ (sizeof (struct pthread) \ + ((sizeof (tcbhead_t) + TLS_TCB_ALIGN - 1) & ~(TLS_TCB_ALIGN - 1))) # ifndef __powerpc64__ /* Register r2 (tp) is reserved by the ABI as "thread pointer". */ register void *__thread_register __asm__ ("r2"); # define PT_THREAD_POINTER PT_R2 # else /* Register r13 (tp) is reserved by the ABI as "thread pointer". */ register void *__thread_register __asm__ ("r13"); # define PT_THREAD_POINTER PT_R13 # endif /* The following assumes that TP (R2 or R13) points to the end of the TCB + 0x7000 (per the ABI). This implies that TCB address is TP - 0x7000. As we define TLS_DTV_AT_TP we can assume that the pthread struct is allocated immediately ahead of the TCB. This implies that the pthread_descr address is TP - (TLS_PRE_TCB_SIZE + 0x7000). */ # define TLS_TCB_OFFSET 0x7000 /* Install the dtv pointer. The pointer passed is to the element with index -1 which contain the length. */ # define INSTALL_DTV(tcbp, dtvp) \ ((tcbhead_t *) (tcbp))[-1].dtv = dtvp + 1 /* Install new dtv for current thread. */ # define INSTALL_NEW_DTV(dtv) (THREAD_DTV() = (dtv)) /* Return dtv of given thread descriptor. */ # define GET_DTV(tcbp) (((tcbhead_t *) (tcbp))[-1].dtv) /* Code to initially initialize the thread pointer. This might need special attention since 'errno' is not yet available and if the operation can cause a failure 'errno' must not be touched. */ # define TLS_INIT_TP(tcbp, secondcall) \ (__thread_register = (void *) (tcbp) + TLS_TCB_OFFSET, NULL) /* Return the address of the dtv for the current thread. */ # define THREAD_DTV() \ (((tcbhead_t *) (__thread_register - TLS_TCB_OFFSET))[-1].dtv) /* Return the thread descriptor for the current thread. */ # define THREAD_SELF \ ((struct pthread *) (__thread_register \ - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE)) /* Magic for libthread_db to know how to do THREAD_SELF. */ # define DB_THREAD_SELF \ REGISTER (32, 32, PT_THREAD_POINTER * 4, \ - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE) \ REGISTER (64, 64, PT_THREAD_POINTER * 8, \ - TLS_TCB_OFFSET - TLS_PRE_TCB_SIZE) /* Read member of the thread descriptor directly. */ # define THREAD_GETMEM(descr, member) ((void)(descr), (THREAD_SELF)->member) /* Same as THREAD_GETMEM, but the member offset can be non-constant. */ # define THREAD_GETMEM_NC(descr, member, idx) \ ((void)(descr), (THREAD_SELF)->member[idx]) /* Set member of the thread descriptor directly. */ # define THREAD_SETMEM(descr, member, value) \ ((void)(descr), (THREAD_SELF)->member = (value)) /* Same as THREAD_SETMEM, but the member offset can be non-constant. */ # define THREAD_SETMEM_NC(descr, member, idx, value) \ ((void)(descr), (THREAD_SELF)->member[idx] = (value)) /* Set the stack guard field in TCB head. */ # define THREAD_SET_STACK_GUARD(value) \ (((tcbhead_t *) ((char *) __thread_register \ - TLS_TCB_OFFSET))[-1].stack_guard = (value)) # define THREAD_COPY_STACK_GUARD(descr) \ (((tcbhead_t *) ((char *) (descr) \ + TLS_PRE_TCB_SIZE))[-1].stack_guard \ = ((tcbhead_t *) ((char *) __thread_register \ - TLS_TCB_OFFSET))[-1].stack_guard) /* Set the stack guard field in TCB head. */ # define THREAD_GET_POINTER_GUARD() \ (((tcbhead_t *) ((char *) __thread_register \ - TLS_TCB_OFFSET))[-1].pointer_guard) # define THREAD_SET_POINTER_GUARD(value) \ (THREAD_GET_POINTER_GUARD () = (value)) # define THREAD_COPY_POINTER_GUARD(descr) \ (((tcbhead_t *) ((char *) (descr) \ + TLS_PRE_TCB_SIZE))[-1].pointer_guard \ = THREAD_GET_POINTER_GUARD()) /* l_tls_offset == 0 is perfectly valid on PPC, so we have to use some different value to mean unset l_tls_offset. */ # define NO_TLS_OFFSET -1 /* Get and set the global scope generation counter in struct pthread. */ #define THREAD_GSCOPE_FLAG_UNUSED 0 #define THREAD_GSCOPE_FLAG_USED 1 #define THREAD_GSCOPE_FLAG_WAIT 2 #define THREAD_GSCOPE_RESET_FLAG() \ do \ { int __res \ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ THREAD_GSCOPE_FLAG_UNUSED); \ if (__res == THREAD_GSCOPE_FLAG_WAIT) \ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1); \ } \ while (0) #define THREAD_GSCOPE_SET_FLAG() \ do \ { \ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ atomic_write_barrier (); \ } \ while (0) #define THREAD_GSCOPE_WAIT() \ GL(dl_wait_lookup_done) () #endif /* __ASSEMBLER__ */ #endif /* tls.h */
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
You can’t perform that action at this time.