diff options
Diffstat (limited to 'nptl/sysdeps/x86_64/tls.h')
| -rw-r--r-- | nptl/sysdeps/x86_64/tls.h | 59 |
1 files changed, 6 insertions, 53 deletions
diff --git a/nptl/sysdeps/x86_64/tls.h b/nptl/sysdeps/x86_64/tls.h index b6385b135c..3d6111f4e3 100644 --- a/nptl/sysdeps/x86_64/tls.h +++ b/nptl/sysdeps/x86_64/tls.h @@ -1,5 +1,5 @@ /* Definition for thread-local data handling. nptl/x86_64 version. - Copyright (C) 2002,2003,2004,2005,2006,2007 Free Software Foundation, Inc. + Copyright (C) 2002, 2003 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 @@ -20,9 +20,8 @@ #ifndef _TLS_H #define _TLS_H 1 +#include <asm/prctl.h> /* For ARCH_SET_FS. */ #ifndef __ASSEMBLER__ -# include <asm/prctl.h> /* For ARCH_SET_FS. */ -# include <stdbool.h> # include <stddef.h> # include <stdint.h> # include <stdlib.h> @@ -32,11 +31,7 @@ typedef union dtv { size_t counter; - struct - { - void *val; - bool is_static; - } pointer; + void *pointer; } dtv_t; @@ -47,10 +42,6 @@ typedef struct dtv_t *dtv; void *self; /* Pointer to the thread descriptor. */ int multiple_threads; - int gscope_flag; - uintptr_t sysinfo; - uintptr_t stack_guard; - uintptr_t pointer_guard; } tcbhead_t; #else /* __ASSEMBLER__ */ @@ -86,13 +77,11 @@ typedef struct # endif #endif -/* This is the size of the initial TCB. Can't be just sizeof (tcbhead_t), - because NPTL getpid, __libc_alloca_cutoff etc. need (almost) the whole - struct pthread even when not linked with -lpthread. */ -# define TLS_INIT_TCB_SIZE sizeof (struct pthread) +/* 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__ (struct pthread) +# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) /* This is the size of the TCB. */ # define TLS_TCB_SIZE sizeof (struct pthread) @@ -324,42 +313,6 @@ typedef struct __res; }) -/* Set the stack guard field in TCB head. */ -# define THREAD_SET_STACK_GUARD(value) \ - THREAD_SETMEM (THREAD_SELF, header.stack_guard, value) -# define THREAD_COPY_STACK_GUARD(descr) \ - ((descr)->header.stack_guard \ - = THREAD_GETMEM (THREAD_SELF, header.stack_guard)) - - -/* Set the pointer guard field in the TCB head. */ -#define THREAD_SET_POINTER_GUARD(value) \ - THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value) -#define THREAD_COPY_POINTER_GUARD(descr) \ - ((descr)->header.pointer_guard \ - = THREAD_GETMEM (THREAD_SELF, header.pointer_guard)) - - -/* Get and set the global scope generation counter in the TCB head. */ -#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; \ - asm volatile ("xchgl %0, %%fs:%P1" \ - : "=r" (__res) \ - : "i" (offsetof (struct pthread, header.gscope_flag)), \ - "0" (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() \ - THREAD_SETMEM (THREAD_SELF, header.gscope_flag, THREAD_GSCOPE_FLAG_USED) -#define THREAD_GSCOPE_WAIT() \ - GL(dl_wait_lookup_done) () - #endif /* __ASSEMBLER__ */ #endif /* tls.h */ |