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authorEric Andersen <andersen@codepoet.org>2005-05-20 19:02:51 +0000
committerEric Andersen <andersen@codepoet.org>2005-05-20 19:02:51 +0000
commit124af9f4b2b77b1510d88cfc8092c788d7e513c7 (patch)
treeccce720bef4c1c604417e2082cf9997a8d6dd7ab /libpthread/nptl/sysdeps/x86_64
parent8028f35dbe29c5ace3883005e08ac91d873553b2 (diff)
Back out nptl changes, which for now will be done in branches/uClibc-nptl
Diffstat (limited to 'libpthread/nptl/sysdeps/x86_64')
-rw-r--r--libpthread/nptl/sysdeps/x86_64/Makefile28
-rw-r--r--libpthread/nptl/sysdeps/x86_64/jmpbuf-unwind.h31
-rw-r--r--libpthread/nptl/sysdeps/x86_64/pthread_spin_init.c1
-rw-r--r--libpthread/nptl/sysdeps/x86_64/pthread_spin_lock.c1
-rw-r--r--libpthread/nptl/sysdeps/x86_64/pthread_spin_trylock.S40
-rw-r--r--libpthread/nptl/sysdeps/x86_64/pthread_spin_unlock.S31
-rw-r--r--libpthread/nptl/sysdeps/x86_64/pthreaddef.h54
-rw-r--r--libpthread/nptl/sysdeps/x86_64/tcb-offsets.sym12
-rw-r--r--libpthread/nptl/sysdeps/x86_64/tls.h323
9 files changed, 0 insertions, 521 deletions
diff --git a/libpthread/nptl/sysdeps/x86_64/Makefile b/libpthread/nptl/sysdeps/x86_64/Makefile
deleted file mode 100644
index 6e24a26cd..000000000
--- a/libpthread/nptl/sysdeps/x86_64/Makefile
+++ /dev/null
@@ -1,28 +0,0 @@
-# Copyright (C) 2002, 2003, 2004 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.
-
-ifeq ($(subdir),csu)
-gen-as-const-headers += tcb-offsets.sym
-endif
-
-ifeq ($(subdir),nptl)
-# P4s have problems with 4M aliasing. We disturb the allocation of stacks
-# just enough so the subsequent allocations do not use stack address
-# (mod 4M) == 0.
-CFLAGS-pthread_create.c += -DMULTI_PAGE_ALIASING=65536
-endif
diff --git a/libpthread/nptl/sysdeps/x86_64/jmpbuf-unwind.h b/libpthread/nptl/sysdeps/x86_64/jmpbuf-unwind.h
deleted file mode 100644
index 345ed557c..000000000
--- a/libpthread/nptl/sysdeps/x86_64/jmpbuf-unwind.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
-
- 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. */
-
-#include <setjmp.h>
-#include <stdint.h>
-#include <unwind.h>
-
-#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
- _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
-
-#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
- ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_RSP] - (_adj))
-
-/* We use the normal lobngjmp for unwinding. */
-#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/libpthread/nptl/sysdeps/x86_64/pthread_spin_init.c b/libpthread/nptl/sysdeps/x86_64/pthread_spin_init.c
deleted file mode 100644
index 55696204c..000000000
--- a/libpthread/nptl/sysdeps/x86_64/pthread_spin_init.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../i386/pthread_spin_init.c"
diff --git a/libpthread/nptl/sysdeps/x86_64/pthread_spin_lock.c b/libpthread/nptl/sysdeps/x86_64/pthread_spin_lock.c
deleted file mode 100644
index 7cf0e0ecc..000000000
--- a/libpthread/nptl/sysdeps/x86_64/pthread_spin_lock.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../i386/pthread_spin_lock.c"
diff --git a/libpthread/nptl/sysdeps/x86_64/pthread_spin_trylock.S b/libpthread/nptl/sysdeps/x86_64/pthread_spin_trylock.S
deleted file mode 100644
index 9b5133583..000000000
--- a/libpthread/nptl/sysdeps/x86_64/pthread_spin_trylock.S
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- 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. */
-
-#include <pthread-errnos.h>
-
-
-#ifdef UP
-# define LOCK
-#else
-# define LOCK lock
-#endif
-
- .globl pthread_spin_trylock
- .type pthread_spin_trylock,@function
- .align 16
-pthread_spin_trylock:
- movl $1, %eax
- xorl %ecx, %ecx
- LOCK
- cmpxchgl %ecx, (%rdi)
- movl $EBUSY, %eax
- cmovel %ecx, %eax
- retq
- .size pthread_spin_trylock,.-pthread_spin_trylock
diff --git a/libpthread/nptl/sysdeps/x86_64/pthread_spin_unlock.S b/libpthread/nptl/sysdeps/x86_64/pthread_spin_unlock.S
deleted file mode 100644
index d3e13bde9..000000000
--- a/libpthread/nptl/sysdeps/x86_64/pthread_spin_unlock.S
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- 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. */
-
- .globl pthread_spin_unlock
- .type pthread_spin_unlock,@function
- .align 16
-pthread_spin_unlock:
- movl $1, (%rdi)
- xorl %eax, %eax
- retq
- .size pthread_spin_unlock,.-pthread_spin_unlock
-
- /* The implementation of pthread_spin_init is identical. */
- .globl pthread_spin_init
-pthread_spin_init = pthread_spin_unlock
diff --git a/libpthread/nptl/sysdeps/x86_64/pthreaddef.h b/libpthread/nptl/sysdeps/x86_64/pthreaddef.h
deleted file mode 100644
index 27896a445..000000000
--- a/libpthread/nptl/sysdeps/x86_64/pthreaddef.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
-
- 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. */
-
-/* Default stack size. */
-#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
-
-/* Required stack pointer alignment at beginning. SSE requires 16
- bytes. */
-#define STACK_ALIGN 16
-
-/* Minimal stack size after allocating thread descriptor and guard size. */
-#define MINIMAL_REST_STACK 2048
-
-/* Alignment requirement for TCB. */
-#define TCB_ALIGNMENT 16
-
-
-/* Location of current stack frame. The frame pointer is not usable. */
-#define CURRENT_STACK_FRAME \
- ({ char *frame; asm ("movq %%rsp, %0" : "=r" (frame)); frame; })
-
-
-/* We prefer to have the stack allocated in the low 4GB since this
- allows faster context switches. */
-#define ARCH_MAP_FLAGS MAP_32BIT
-
-/* If it is not possible to allocate memory there retry without that
- flag. */
-#define ARCH_RETRY_MMAP(size) \
- mmap (NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, \
- MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)
-
-
-/* XXX Until we have a better place keep the definitions here. */
-
-/* While there is no such syscall. */
-#define __exit_thread_inline(val) \
- asm volatile ("syscall" :: "a" (__NR_exit), "D" (val))
diff --git a/libpthread/nptl/sysdeps/x86_64/tcb-offsets.sym b/libpthread/nptl/sysdeps/x86_64/tcb-offsets.sym
deleted file mode 100644
index 8118d2df8..000000000
--- a/libpthread/nptl/sysdeps/x86_64/tcb-offsets.sym
+++ /dev/null
@@ -1,12 +0,0 @@
-#include <sysdep.h>
-#include <tls.h>
-
-RESULT offsetof (struct pthread, result)
-TID offsetof (struct pthread, tid)
-PID offsetof (struct pthread, pid)
-CANCELHANDLING offsetof (struct pthread, cancelhandling)
-CLEANUP_JMP_BUF offsetof (struct pthread, cleanup_jmp_buf)
-CLEANUP offsetof (struct pthread, cleanup)
-CLEANUP_PREV offsetof (struct _pthread_cleanup_buffer, __prev)
-MUTEX_FUTEX offsetof (pthread_mutex_t, __data.__lock)
-MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads)
diff --git a/libpthread/nptl/sysdeps/x86_64/tls.h b/libpthread/nptl/sysdeps/x86_64/tls.h
deleted file mode 100644
index 12da9dc81..000000000
--- a/libpthread/nptl/sysdeps/x86_64/tls.h
+++ /dev/null
@@ -1,323 +0,0 @@
-/* Definition for thread-local data handling. nptl/x86_64 version.
- Copyright (C) 2002, 2003, 2004 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 <asm/prctl.h> /* For ARCH_SET_FS. */
-#ifndef __ASSEMBLER__
-# include <stdbool.h>
-# include <stddef.h>
-# include <stdint.h>
-# include <stdlib.h>
-
-
-/* Type for the dtv. */
-typedef union dtv
-{
- size_t counter;
- struct
- {
- void *val;
- bool is_static;
- } pointer;
-} dtv_t;
-
-
-typedef struct
-{
- void *tcb; /* Pointer to the TCB. Not necessary the
- thread descriptor used by libpthread. */
- dtv_t *dtv;
- void *self; /* Pointer to the thread descriptor. */
- int multiple_threads;
-} tcbhead_t;
-
-#else /* __ASSEMBLER__ */
-# include <tcb-offsets.h>
-#endif
-
-
-/* We require TLS support in the tools. */
-#ifndef HAVE_TLS_SUPPORT
-# error "TLS support is required."
-#endif
-
-/* Signal that TLS support is available. */
-#define USE_TLS 1
-
-/* Alignment requirement for the stack. */
-#define STACK_ALIGN 16
-
-
-#ifndef __ASSEMBLER__
-/* Get system call information. */
-# include <sysdep.h>
-
-
-/* Get the thread descriptor definition. */
-# include <nptl/descr.h>
-
-#ifndef LOCK_PREFIX
-# ifdef UP
-# define LOCK_PREFIX /* nothing */
-# else
-# define LOCK_PREFIX "lock;"
-# endif
-#endif
-
-/* This is the size of the initial TCB. */
-# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
-
-/* Alignment requirements for the initial TCB. */
-# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t)
-
-/* This is the size of the TCB. */
-# define TLS_TCB_SIZE sizeof (struct pthread)
-
-/* Alignment requirements for the TCB. */
-# define TLS_TCB_ALIGN __alignof__ (struct pthread)
-
-/* The TCB can have any size and the memory following the address the
- thread pointer points to is unspecified. Allocate the TCB there. */
-# define TLS_TCB_AT_TP 1
-
-
-/* Install the dtv pointer. The pointer passed is to the element with
- index -1 which contain the length. */
-# define INSTALL_DTV(descr, dtvp) \
- ((tcbhead_t *) (descr))->dtv = (dtvp) + 1
-
-/* Install new dtv for current thread. */
-# define INSTALL_NEW_DTV(dtvp) \
- ({ struct pthread *__pd; \
- THREAD_SETMEM (__pd, header.dtv, (dtvp)); })
-
-/* Return dtv of given thread descriptor. */
-# define GET_DTV(descr) \
- (((tcbhead_t *) (descr))->dtv)
-
-
-/* Macros to load from and store into segment registers. */
-# define TLS_GET_FS() \
- ({ int __seg; __asm ("movl %%fs, %0" : "=q" (__seg)); __seg; })
-# define TLS_SET_FS(val) \
- __asm ("movl %0, %%fs" :: "q" (val))
-
-
-/* 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.
-
- We have to make the syscall for both uses of the macro since the
- address might be (and probably is) different. */
-# define TLS_INIT_TP(thrdescr, secondcall) \
- ({ void *_thrdescr = (thrdescr); \
- tcbhead_t *_head = _thrdescr; \
- int _result; \
- \
- _head->tcb = _thrdescr; \
- /* For now the thread descriptor is at the same address. */ \
- _head->self = _thrdescr; \
- \
- /* It is a simple syscall to set the %fs value for the thread. */ \
- asm volatile ("syscall" \
- : "=a" (_result) \
- : "0" ((unsigned long int) __NR_arch_prctl), \
- "D" ((unsigned long int) ARCH_SET_FS), \
- "S" (_thrdescr) \
- : "memory", "cc", "r11", "cx"); \
- \
- _result ? "cannot set %fs base address for thread-local storage" : 0; \
- })
-
-
-/* Return the address of the dtv for the current thread. */
-# define THREAD_DTV() \
- ({ struct pthread *__pd; \
- THREAD_GETMEM (__pd, header.dtv); })
-
-
-/* Return the thread descriptor for the current thread.
-
- The contained asm must *not* be marked volatile since otherwise
- assignments like
- pthread_descr self = thread_self();
- do not get optimized away. */
-# define THREAD_SELF \
- ({ struct pthread *__self; \
- asm ("movq %%fs:%c1,%q0" : "=r" (__self) \
- : "i" (offsetof (struct pthread, header.self))); \
- __self;})
-
-/* Magic for libthread_db to know how to do THREAD_SELF. */
-# define DB_THREAD_SELF_INCLUDE <sys/reg.h> /* For the FS constant. */
-# define DB_THREAD_SELF CONST_THREAD_AREA (64, FS)
-
-/* Read member of the thread descriptor directly. */
-# define THREAD_GETMEM(descr, member) \
- ({ __typeof (descr->member) __value; \
- if (sizeof (__value) == 1) \
- asm volatile ("movb %%fs:%P2,%b0" \
- : "=q" (__value) \
- : "0" (0), "i" (offsetof (struct pthread, member))); \
- else if (sizeof (__value) == 4) \
- asm volatile ("movl %%fs:%P1,%0" \
- : "=r" (__value) \
- : "i" (offsetof (struct pthread, member))); \
- else \
- { \
- if (sizeof (__value) != 8) \
- /* There should not be any value with a size other than 1, \
- 4 or 8. */ \
- abort (); \
- \
- asm volatile ("movq %%fs:%P1,%q0" \
- : "=r" (__value) \
- : "i" (offsetof (struct pthread, member))); \
- } \
- __value; })
-
-
-/* Same as THREAD_GETMEM, but the member offset can be non-constant. */
-# define THREAD_GETMEM_NC(descr, member, idx) \
- ({ __typeof (descr->member[0]) __value; \
- if (sizeof (__value) == 1) \
- asm volatile ("movb %%fs:%P2(%q3),%b0" \
- : "=q" (__value) \
- : "0" (0), "i" (offsetof (struct pthread, member[0])), \
- "r" (idx)); \
- else if (sizeof (__value) == 4) \
- asm volatile ("movl %%fs:%P1(,%q2,4),%0" \
- : "=r" (__value) \
- : "i" (offsetof (struct pthread, member[0])), "r" (idx));\
- else \
- { \
- if (sizeof (__value) != 8) \
- /* There should not be any value with a size other than 1, \
- 4 or 8. */ \
- abort (); \
- \
- asm volatile ("movq %%fs:%P1(,%q2,8),%q0" \
- : "=r" (__value) \
- : "i" (offsetof (struct pthread, member[0])), \
- "r" (idx)); \
- } \
- __value; })
-
-
-/* Loading addresses of objects on x86-64 needs to be treated special
- when generating PIC code. */
-#ifdef __pic__
-# define IMM_MODE "nr"
-#else
-# define IMM_MODE "ir"
-#endif
-
-
-/* Same as THREAD_SETMEM, but the member offset can be non-constant. */
-# define THREAD_SETMEM(descr, member, value) \
- ({ if (sizeof (descr->member) == 1) \
- asm volatile ("movb %b0,%%fs:%P1" : \
- : "iq" (value), \
- "i" (offsetof (struct pthread, member))); \
- else if (sizeof (descr->member) == 4) \
- asm volatile ("movl %0,%%fs:%P1" : \
- : IMM_MODE (value), \
- "i" (offsetof (struct pthread, member))); \
- else \
- { \
- if (sizeof (descr->member) != 8) \
- /* There should not be any value with a size other than 1, \
- 4 or 8. */ \
- abort (); \
- \
- asm volatile ("movq %q0,%%fs:%P1" : \
- : IMM_MODE ((unsigned long int) value), \
- "i" (offsetof (struct pthread, member))); \
- }})
-
-
-/* Set member of the thread descriptor directly. */
-# define THREAD_SETMEM_NC(descr, member, idx, value) \
- ({ if (sizeof (descr->member[0]) == 1) \
- asm volatile ("movb %b0,%%fs:%P1(%q2)" : \
- : "iq" (value), \
- "i" (offsetof (struct pthread, member[0])), \
- "r" (idx)); \
- else if (sizeof (descr->member[0]) == 4) \
- asm volatile ("movl %0,%%fs:%P1(,%q2,4)" : \
- : IMM_MODE (value), \
- "i" (offsetof (struct pthread, member[0])), \
- "r" (idx)); \
- else \
- { \
- if (sizeof (descr->member[0]) != 8) \
- /* There should not be any value with a size other than 1, \
- 4 or 8. */ \
- abort (); \
- \
- asm volatile ("movq %q0,%%fs:%P1(,%q2,8)" : \
- : IMM_MODE ((unsigned long int) value), \
- "i" (offsetof (struct pthread, member[0])), \
- "r" (idx)); \
- }})
-
-
-/* Atomic compare and exchange on TLS, returning old value. */
-#define THREAD_ATOMIC_CMPXCHG_VAL(descr, member, newval, oldval) \
- ({ __typeof (descr->member) __ret; \
- __typeof (oldval) __old = (oldval); \
- if (sizeof (descr->member) == 4) \
- asm volatile (LOCK_PREFIX "cmpxchgl %2, %%fs:%P3" \
- : "=a" (__ret) \
- : "0" (__old), "r" (newval), \
- "i" (offsetof (struct pthread, member))); \
- else \
- /* Not necessary for other sizes in the moment. */ \
- abort (); \
- __ret; })
-
-
-/* Atomic set bit. */
-#define THREAD_ATOMIC_BIT_SET(descr, member, bit) \
- (void) ({ if (sizeof ((descr)->member) == 4) \
- asm volatile (LOCK_PREFIX "orl %1, %%fs:%P0" \
- :: "i" (offsetof (struct pthread, member)), \
- "ir" (1 << (bit))); \
- else \
- /* Not necessary for other sizes in the moment. */ \
- abort (); })
-
-
-#define CALL_THREAD_FCT(descr) \
- ({ void *__res; \
- asm volatile ("movq %%fs:%P2, %%rdi\n\t" \
- "callq *%%fs:%P1" \
- : "=a" (__res) \
- : "i" (offsetof (struct pthread, start_routine)), \
- "i" (offsetof (struct pthread, arg)) \
- : "di", "si", "cx", "dx", "r8", "r9", "r10", "r11", \
- "memory", "cc"); \
- __res; })
-
-
-#endif /* __ASSEMBLER__ */
-
-#endif /* tls.h */