diff options
Diffstat (limited to 'libpthread/nptl/sysdeps')
38 files changed, 780 insertions, 492 deletions
diff --git a/libpthread/nptl/sysdeps/i386/Makefile.arch b/libpthread/nptl/sysdeps/i386/Makefile.arch new file mode 100644 index 000000000..2b9a2dc7c --- /dev/null +++ b/libpthread/nptl/sysdeps/i386/Makefile.arch @@ -0,0 +1,53 @@ +# Makefile for uClibc NPTL +# +# Copyright (C) 2005 Steven J. Hill <sjhill@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +libpthread_CSRC = pthread_spin_lock.c +libpthread_SSRC = i486/pthread_spin_trylock.S + +CFLAGS-pthread_spin_lock.c += -D_GNU_SOURCE + +CFLAGS-i386 = $(SSP_ALL_CFLAGS) +#CFLAGS:=$(CFLAGS:-O1=-O2) + +PTHREAD_ARCH_DIR := $(top_srcdir)libpthread/nptl/sysdeps/i386/ +PTHREAD_ARCH_OUT := $(top_builddir)libpthread/nptl/sysdeps/i386/ +PTHREAD_ARCH_OBJ := $(patsubst %.S,$(PTHREAD_ARCH_OUT)/%.o,$(libpthread_SSRC)) +PTHREAD_ARCH_OBJ += $(patsubst %.c,$(PTHREAD_ARCH_OUT)/%.o,$(libpthread_CSRC)) + +ifeq ($(DOPIC),y) +libpthread-a-y += $(PTHREAD_ARCH_OBJ:.o=.os) +else +libpthread-a-y += $(PTHREAD_ARCH_OBJ) +endif +libpthread-so-y += $(PTHREAD_ARCH_OBJ:.o=.oS) + +libpthread-nomulti-y += $(PTHREAD_ARCH_OBJ) + +objclean-y += nptl_arch_clean +headers_clean-y += nptl_arch_headers_clean + +# +# Create 'tcb-offsets.h' header file. +# +CFLAGS-tcb-offsets.c = -S + +$(PTHREAD_ARCH_OUT)/tcb-offsets.c: $(PTHREAD_ARCH_DIR)/tcb-offsets.sym + $(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@ + +$(PTHREAD_ARCH_OUT)/tcb-offsets.s: $(PTHREAD_ARCH_OUT)/tcb-offsets.c + $(compile.c) + +$(PTHREAD_ARCH_OUT)/tcb-offsets.h: $(PTHREAD_ARCH_OUT)/tcb-offsets.s + @sed -n "s/^.*@@@name@@@\([^@]*\)@@@value@@@[^0-9Xxa-fA-F-]*\([0-9Xxa-fA-F-][0-9Xxa-fA-F-]*\).*@@@end@@@.*$\/#define \1 \2/p" $< > $@ + +nptl_arch_headers: $(PTHREAD_ARCH_OUT)/tcb-offsets.h + +nptl_arch_headers_clean: + $(do_rm) $(addprefix $(PTHREAD_ARCH_OUT)/tcb-offsets., c s h) + +nptl_arch_clean: + $(do_rm) $(addprefix $(PTHREAD_ARCH_OUT)/*., o os oS) diff --git a/libpthread/nptl/sysdeps/i386/pthread_spin_lock.c b/libpthread/nptl/sysdeps/i386/pthread_spin_lock.c index b41174e5f..da859cc9f 100644 --- a/libpthread/nptl/sysdeps/i386/pthread_spin_lock.c +++ b/libpthread/nptl/sysdeps/i386/pthread_spin_lock.c @@ -32,7 +32,7 @@ int pthread_spin_lock (lock) pthread_spinlock_t *lock; { - asm ("\n" + __asm__ ("\n" "1:\t" LOCK_PREFIX "decl %0\n\t" "jne 2f\n\t" ".subsection 1\n\t" diff --git a/libpthread/nptl/sysdeps/i386/pthreaddef.h b/libpthread/nptl/sysdeps/i386/pthreaddef.h index 43b771c6d..81456a4fc 100644 --- a/libpthread/nptl/sysdeps/i386/pthreaddef.h +++ b/libpthread/nptl/sysdeps/i386/pthreaddef.h @@ -41,8 +41,8 @@ #define __exit_thread_inline(val) \ while (1) { \ if (__builtin_constant_p (val) && (val) == 0) \ - asm volatile ("xorl %%ebx, %%ebx; int $0x80" :: "a" (__NR_exit)); \ + __asm__ volatile ("xorl %%ebx, %%ebx; int $0x80" :: "a" (__NR_exit)); \ else \ - asm volatile ("movl %1, %%ebx; int $0x80" \ + __asm__ volatile ("movl %1, %%ebx; int $0x80" \ :: "a" (__NR_exit), "r" (val)); \ } diff --git a/libpthread/nptl/sysdeps/i386/sysdep.h b/libpthread/nptl/sysdeps/i386/sysdep.h new file mode 100644 index 000000000..e03a8e926 --- /dev/null +++ b/libpthread/nptl/sysdeps/i386/sysdep.h @@ -0,0 +1,167 @@ +/* Assembler macros for i386. + Copyright (C) 1991-93,95,96,98,2002,2003,2005,2006 + 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. */ + +#include <sysdeps/generic/sysdep.h> + +#ifdef __ASSEMBLER__ + +/* Syntactic details of assembler. */ + +#ifdef HAVE_ELF + +/* ELF uses byte-counts for .align, most others use log2 of count of bytes. */ +#define ALIGNARG(log2) 1<<log2 +/* For ELF we need the `.type' directive to make shared libs work right. */ +#define ASM_TYPE_DIRECTIVE(name,typearg) .type name,typearg; +#define ASM_SIZE_DIRECTIVE(name) .size name,.-name; + +/* In ELF C symbols are asm symbols. */ +#undef NO_UNDERSCORES +#define NO_UNDERSCORES + +#else + +#define ALIGNARG(log2) log2 +#define ASM_TYPE_DIRECTIVE(name,type) /* Nothing is specified. */ +#define ASM_SIZE_DIRECTIVE(name) /* Nothing is specified. */ + +#endif + + +/* Define an entry point visible from C. + + There is currently a bug in gdb which prevents us from specifying + incomplete stabs information. Fake some entries here which specify + the current source file. */ +#define ENTRY(name) \ + STABS_CURRENT_FILE1("") \ + STABS_CURRENT_FILE(name) \ + ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \ + ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name),@function) \ + .align ALIGNARG(4); \ + STABS_FUN(name) \ + C_LABEL(name) \ + cfi_startproc; \ + CALL_MCOUNT + +#undef END +#define END(name) \ + cfi_endproc; \ + ASM_SIZE_DIRECTIVE(name) \ + STABS_FUN_END(name) + +#ifdef HAVE_CPP_ASM_DEBUGINFO +/* Disable that goop, because we just pass -g through to the assembler + and it generates proper line number information directly. */ +# define STABS_CURRENT_FILE1(name) +# define STABS_CURRENT_FILE(name) +# define STABS_FUN(name) +# define STABS_FUN_END(name) +#else +/* Remove the following two lines once the gdb bug is fixed. */ +#define STABS_CURRENT_FILE(name) \ + STABS_CURRENT_FILE1 (#name) +#define STABS_CURRENT_FILE1(name) \ + 1: .stabs name,100,0,0,1b; +/* Emit stabs definition lines. We use F(0,1) and define t(0,1) as `int', + the same way gcc does it. */ +#define STABS_FUN(name) STABS_FUN2(name, name##:F(0,1)) +#define STABS_FUN2(name, namestr) \ + .stabs "int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,0,0; \ + .stabs #namestr,36,0,0,name; +#define STABS_FUN_END(name) \ + 1: .stabs "",36,0,0,1b-name; +#endif + +/* If compiled for profiling, call `mcount' at the start of each function. */ +#ifdef PROF +/* The mcount code relies on a normal frame pointer being on the stack + to locate our caller, so push one just for its benefit. */ +#define CALL_MCOUNT \ + pushl %ebp; cfi_adjust_cfa_offset (4); movl %esp, %ebp; \ + cfi_def_cfa_register (ebp); call JUMPTARGET(mcount); \ + popl %ebp; cfi_def_cfa (esp, 4); +#else +#define CALL_MCOUNT /* Do nothing. */ +#endif + +#ifdef NO_UNDERSCORES +/* Since C identifiers are not normally prefixed with an underscore + on this system, the asm identifier `syscall_error' intrudes on the + C name space. Make sure we use an innocuous name. */ +#define syscall_error __syscall_error +#define mcount _mcount +#endif + +#define PSEUDO(name, syscall_name, args) \ + .globl syscall_error; \ +lose: SYSCALL_PIC_SETUP \ + jmp JUMPTARGET(syscall_error); \ + ENTRY (name) \ + DO_CALL (syscall_name, args); \ + jb lose + +#undef PSEUDO_END +#define PSEUDO_END(name) \ + END (name) + +#undef JUMPTARGET +#ifdef PIC +#define JUMPTARGET(name) name##@PLT +#define SYSCALL_PIC_SETUP \ + pushl %ebx; \ + cfi_adjust_cfa_offset (4); \ + call 0f; \ +0: popl %ebx; \ + cfi_adjust_cfa_offset (-4); \ + addl $_GLOBAL_OFFSET_TABLE+[.-0b], %ebx; + +# define SETUP_PIC_REG(reg) \ + .ifndef __i686.get_pc_thunk.reg; \ + .section .gnu.linkonce.t.__i686.get_pc_thunk.reg,"ax",@progbits; \ + .globl __i686.get_pc_thunk.reg; \ + .hidden __i686.get_pc_thunk.reg; \ + .type __i686.get_pc_thunk.reg,@function; \ +__i686.get_pc_thunk.reg: \ + movl (%esp), %e##reg; \ + ret; \ + .size __i686.get_pc_thunk.reg, . - __i686.get_pc_thunk.reg; \ + .previous; \ + .endif; \ + call __i686.get_pc_thunk.reg + +# define LOAD_PIC_REG(reg) \ + SETUP_PIC_REG(reg); addl $_GLOBAL_OFFSET_TABLE_, %e##reg + +#else +#define JUMPTARGET(name) name +#define SYSCALL_PIC_SETUP /* Nothing. */ +#endif + +/* Local label name for asm code. */ +#ifndef L +#ifdef HAVE_ELF +#define L(name) .L##name +#else +#define L(name) name +#endif +#endif + +#endif /* __ASSEMBLER__ */ diff --git a/libpthread/nptl/sysdeps/i386/tls.h b/libpthread/nptl/sysdeps/i386/tls.h index ac6084879..52bde9eec 100644 --- a/libpthread/nptl/sysdeps/i386/tls.h +++ b/libpthread/nptl/sysdeps/i386/tls.h @@ -59,9 +59,9 @@ typedef struct /* We require TLS support in the tools. */ -#ifndef HAVE_TLS_SUPPORT -# error "TLS support is required." -#endif +#define HAVE_TLS_SUPPORT +#define HAVE___THREAD 1 +#define HAVE_TLS_MODEL_ATTRIBUTE 1 /* Signal that TLS support is available. */ #define USE_TLS 1 @@ -99,9 +99,6 @@ union user_desc_init }; -/* Get the thread descriptor definition. */ -# include <nptl/descr.h> - /* 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. */ @@ -116,6 +113,9 @@ union user_desc_init /* Alignment requirements for the TCB. */ # define TLS_TCB_ALIGN __alignof__ (struct pthread) +/* Get the thread descriptor definition. */ +#include <descr.h> + /* 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 @@ -141,11 +141,11 @@ union user_desc_init /* Macros to load from and store into segment registers. */ # ifndef TLS_GET_GS # define TLS_GET_GS() \ - ({ int __seg; __asm ("movw %%gs, %w0" : "=q" (__seg)); __seg & 0xffff; }) + ({ int __seg; __asm__ ("movw %%gs, %w0" : "=q" (__seg)); __seg & 0xffff; }) # endif # ifndef TLS_SET_GS # define TLS_SET_GS(val) \ - __asm ("movw %w0, %%gs" :: "q" (val)) + __asm__ ("movw %w0, %%gs" :: "q" (val)) # endif @@ -220,7 +220,7 @@ union user_desc_init _segdescr.vals[3] = 0x51; \ \ /* Install the TLS. */ \ - asm volatile (TLS_LOAD_EBX \ + __asm__ volatile (TLS_LOAD_EBX \ "int $0x80\n\t" \ TLS_LOAD_EBX \ : "=a" (_result), "=m" (_segdescr.desc.entry_number) \ @@ -256,7 +256,7 @@ union user_desc_init do not get optimized away. */ # define THREAD_SELF \ ({ struct pthread *__self; \ - asm ("movl %%gs:%c1,%0" : "=r" (__self) \ + __asm__ ("movl %%gs:%c1,%0" : "=r" (__self) \ : "i" (offsetof (struct pthread, header.self))); \ __self;}) @@ -270,11 +270,11 @@ union user_desc_init # define THREAD_GETMEM(descr, member) \ ({ __typeof (descr->member) __value; \ if (sizeof (__value) == 1) \ - asm volatile ("movb %%gs:%P2,%b0" \ + __asm__ volatile ("movb %%gs:%P2,%b0" \ : "=q" (__value) \ : "0" (0), "i" (offsetof (struct pthread, member))); \ else if (sizeof (__value) == 4) \ - asm volatile ("movl %%gs:%P1,%0" \ + __asm__ volatile ("movl %%gs:%P1,%0" \ : "=r" (__value) \ : "i" (offsetof (struct pthread, member))); \ else \ @@ -284,7 +284,7 @@ union user_desc_init 4 or 8. */ \ abort (); \ \ - asm volatile ("movl %%gs:%P1,%%eax\n\t" \ + __asm__ volatile ("movl %%gs:%P1,%%eax\n\t" \ "movl %%gs:%P2,%%edx" \ : "=A" (__value) \ : "i" (offsetof (struct pthread, member)), \ @@ -297,12 +297,12 @@ union user_desc_init # define THREAD_GETMEM_NC(descr, member, idx) \ ({ __typeof (descr->member[0]) __value; \ if (sizeof (__value) == 1) \ - asm volatile ("movb %%gs:%P2(%3),%b0" \ + __asm__ volatile ("movb %%gs:%P2(%3),%b0" \ : "=q" (__value) \ : "0" (0), "i" (offsetof (struct pthread, member[0])), \ "r" (idx)); \ else if (sizeof (__value) == 4) \ - asm volatile ("movl %%gs:%P1(,%2,4),%0" \ + __asm__ volatile ("movl %%gs:%P1(,%2,4),%0" \ : "=r" (__value) \ : "i" (offsetof (struct pthread, member[0])), \ "r" (idx)); \ @@ -313,7 +313,7 @@ union user_desc_init 4 or 8. */ \ abort (); \ \ - asm volatile ("movl %%gs:%P1(,%2,8),%%eax\n\t" \ + __asm__ volatile ("movl %%gs:%P1(,%2,8),%%eax\n\t" \ "movl %%gs:4+%P1(,%2,8),%%edx" \ : "=&A" (__value) \ : "i" (offsetof (struct pthread, member[0])), \ @@ -325,11 +325,11 @@ union user_desc_init /* 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,%%gs:%P1" : \ + __asm__ volatile ("movb %b0,%%gs:%P1" : \ : "iq" (value), \ "i" (offsetof (struct pthread, member))); \ else if (sizeof (descr->member) == 4) \ - asm volatile ("movl %0,%%gs:%P1" : \ + __asm__ volatile ("movl %0,%%gs:%P1" : \ : "ir" (value), \ "i" (offsetof (struct pthread, member))); \ else \ @@ -339,7 +339,7 @@ union user_desc_init 4 or 8. */ \ abort (); \ \ - asm volatile ("movl %%eax,%%gs:%P1\n\t" \ + __asm__ volatile ("movl %%eax,%%gs:%P1\n\t" \ "movl %%edx,%%gs:%P2" : \ : "A" (value), \ "i" (offsetof (struct pthread, member)), \ @@ -350,12 +350,12 @@ union user_desc_init /* 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,%%gs:%P1(%2)" : \ + __asm__ volatile ("movb %b0,%%gs:%P1(%2)" : \ : "iq" (value), \ "i" (offsetof (struct pthread, member)), \ "r" (idx)); \ else if (sizeof (descr->member[0]) == 4) \ - asm volatile ("movl %0,%%gs:%P1(,%2,4)" : \ + __asm__ volatile ("movl %0,%%gs:%P1(,%2,4)" : \ : "ir" (value), \ "i" (offsetof (struct pthread, member)), \ "r" (idx)); \ @@ -366,7 +366,7 @@ union user_desc_init 4 or 8. */ \ abort (); \ \ - asm volatile ("movl %%eax,%%gs:%P1(,%2,8)\n\t" \ + __asm__ volatile ("movl %%eax,%%gs:%P1(,%2,8)\n\t" \ "movl %%edx,%%gs:4+%P1(,%2,8)" : \ : "A" (value), \ "i" (offsetof (struct pthread, member)), \ @@ -379,7 +379,7 @@ union user_desc_init ({ __typeof (descr->member) __ret; \ __typeof (oldval) __old = (oldval); \ if (sizeof (descr->member) == 4) \ - asm volatile (LOCK_PREFIX "cmpxchgl %2, %%gs:%P3" \ + __asm__ volatile (LOCK_PREFIX "cmpxchgl %2, %%gs:%P3" \ : "=a" (__ret) \ : "0" (__old), "r" (newval), \ "i" (offsetof (struct pthread, member))); \ @@ -392,7 +392,7 @@ union user_desc_init /* Atomic set bit. */ #define THREAD_ATOMIC_BIT_SET(descr, member, bit) \ (void) ({ if (sizeof ((descr)->member) == 4) \ - asm volatile (LOCK_PREFIX "orl %1, %%gs:%P0" \ + __asm__ volatile (LOCK_PREFIX "orl %1, %%gs:%P0" \ :: "i" (offsetof (struct pthread, member)), \ "ir" (1 << (bit))); \ else \ @@ -404,7 +404,7 @@ union user_desc_init #define CALL_THREAD_FCT(descr) \ ({ void *__res; \ int __ignore1, __ignore2; \ - asm volatile ("pushl %%eax\n\t" \ + __asm__ volatile ("pushl %%eax\n\t" \ "pushl %%eax\n\t" \ "pushl %%eax\n\t" \ "pushl %%gs:%P4\n\t" \ diff --git a/libpthread/nptl/sysdeps/pthread/Makefile.in b/libpthread/nptl/sysdeps/pthread/Makefile.in index 23e8ffb01..2a825329a 100644 --- a/libpthread/nptl/sysdeps/pthread/Makefile.in +++ b/libpthread/nptl/sysdeps/pthread/Makefile.in @@ -22,7 +22,13 @@ libpthread_CSRC = pthread_barrier_wait.c pthread_cond_broadcast.c \ ifeq ($(TARGET_ARCH),i386) -libpthread_CSRC += pthread_once.c +X86_PTHREAD_EXCLUDE_LIST = pthread_spin_unlock.c pthread_spin_init.c \ + pthread_cond_wait.c pthread_barrier_wait.c pthread_cond_broadcast.c \ + pthread_cond_signal.c pthread_cond_timedwait.c pthread_rwlock_timedrdlock.c \ + pthread_rwlock_timedwrlock.c pthread_rwlock_unlock.c pthread_rwlock_wrlock.c \ + pthread_rwlock_rdlock.c + +libpthread_CSRC := $(filter-out $(X86_PTHREAD_EXCLUDE_LIST),$(libpthread_CSRC)) endif ifeq ($(TARGET_ARCH),sh) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/Makefile.in b/libpthread/nptl/sysdeps/unix/sysv/linux/Makefile.in index 56c177066..743bc20ea 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/Makefile.in +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/Makefile.in @@ -58,6 +58,11 @@ SH_PTHREAD_SPECIFIC := sem_post.c sem_wait.c sem_timedwait.c sem_trywait.c libpthread_CSRC := $(filter-out $(SH_PTHREAD_SPECIFIC),$(libpthread_CSRC)) endif +ifeq ($(TARGET_ARCH),i386) +X86_PTHREAD_SPECIFIC := sem_post.c sem_wait.c sem_timedwait.c sem_trywait.c +libpthread_CSRC := $(filter-out $(X86_PTHREAD_SPECIFIC),$(libpthread_CSRC)) +endif + ifeq ($(TARGET_ARCH),x86_64) librt_CSRC := mq_notify.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S index f739eb105..b9d1ef768 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S @@ -35,5 +35,5 @@ cmp r0, #0; /* If we are the parent... */ \ strne r3, [r2, #PID_OFFSET] /* ... restore the saved PID. */ -#include <../../../../../../../libc/sysdeps/linux/arm/vfork.S> +#INCLUDE <../../../../../../../LIBC/SYSDEPS/LINUX/ARM/VFORK.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile new file mode 100644 index 000000000..43a6fad84 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile @@ -0,0 +1,13 @@ +# Makefile for uClibc NPTL +# +# Copyright (C) 2005 Steven J. Hill <sjhill@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +top_srcdir=../../../../../../../ +top_builddir=../../../../../../../ +all: objs +include $(top_builddir)Rules.mak +include Makefile.arch +include $(top_srcdir)Makerules diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch new file mode 100644 index 000000000..ae7943080 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch @@ -0,0 +1,73 @@ +# Makefile for uClibc NPTL +# +# Copyright (C) 2006 Steven J. Hill <sjhill@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# +LINUX_ARCH_DIR:=$(top_srcdir)libpthread/nptl/sysdeps/unix/sysv/linux/i386 +LINUX_ARCH_OUT:=$(top_builddir)libpthread/nptl/sysdeps/unix/sysv/linux/i386 + + +libpthread_SSRC = pt-vfork.S clone.S pthread_spin_unlock.S pthread_once.S +libpthread_CSRC = pthread_spin_init.c pt-__syscall_error.c + +libc_a_CSRC = fork.c +libc_a_SSRC = clone.S vfork.S + +libpthread_SSRC += i486/lowlevellock.S i486/pthread_barrier_wait.S i486/pthread_cond_signal.S i486/pthread_cond_broadcast.S \ + i486/pthread_cond_timedwait.S i486/pthread_cond_wait.S i486/sem_post.S i486/sem_timedwait.S \ + i486/sem_trywait.S i486/sem_wait.S i486/pthread_rwlock_rdlock.S i486/pthread_rwlock_wrlock.S \ + i486/pthread_rwlock_timedrdlock.S i486/pthread_rwlock_timedwrlock.S i486/pthread_rwlock_unlock.S + +libc_a_SSRC += i486/libc-lowlevellock.S + + +CFLAGS-OMIT-fork.c = -DNOT_IN_libc=1 -DIS_IN_libpthread=1 + +ifeq ($(UCLIBC_HAS_STDIO_FUTEXES),y) +CFLAGS-fork.c = -D__USE_STDIO_FUTEXES__ +endif + +ASFLAGS-pt-vfork.S = -DNOT_IN_libc=1 -DIS_IN_libpthread=1 -D_LIBC_REENTRANT -DUSE___THREAD +ASFLAGS-lowlevellock.S = -DNOT_IN_libc=1 -DIS_IN_libpthread=1 -D_LIBC_REENTRANT -DUSE___THREAD +ASFLAGS-pthread_once.S = -DNOT_IN_libc=1 -DIS_IN_libpthread=1 -D_LIBC_REENTRANT -DUSE___THREAD +ASFLAGS-pthread_spin_unlock.S = -DNOT_IN_libc=1 -DIS_IN_libpthread=1 -D_LIBC_REENTRANT -DUSE___THREAD + + +ASFLAGS-clone.S = -D_LIBC_REENTRANT +ASFLAGS-vfork.S = -D_LIBC_REENTRANT +ASFLAGS-libc-lowlevellock.S = -D_LIBC_REENTRANT + +ifeq ($(UCLIBC_HAS_THREADS_NATIVE),y) +#Needed to use the correct SYSCALL_ERROR_HANDLER +ASFLAGS-clone.S += -DUSE___THREAD +ASFLAGS-vfork.S += -DUSE___THREAD +endif + +CFLAGS += $(SSP_ALL_CFLAGS) +#CFLAGS:=$(CFLAGS:-O1=-O2) + +LINUX_ARCH_OBJ:=$(patsubst %.S,$(LINUX_ARCH_OUT)/%.o,$(libpthread_SSRC)) +LINUX_ARCH_OBJ+=$(patsubst %.c,$(LINUX_ARCH_OUT)/%.o,$(libpthread_CSRC)) + +ifeq ($(DOPIC),y) +libpthread-a-y += $(LINUX_ARCH_OBJ:.o=.os) +else +libpthread-a-y += $(LINUX_ARCH_OBJ) +endif +libpthread-so-y += $(LINUX_ARCH_OBJ:.o=.oS) + +libpthread-nomulti-y+=$(LINUX_ARCH_OBJS) + +LIBC_LINUX_ARCH_OBJ:=$(patsubst %.c,$(LINUX_ARCH_OUT)/%.o,$(libc_a_CSRC)) +LIBC_LINUX_ARCH_OBJ+=$(patsubst %.S,$(LINUX_ARCH_OUT)/%.o,$(libc_a_SSRC)) + +libc-static-y+=$(LIBC_LINUX_ARCH_OBJ) +libc-shared-y+=$(LIBC_LINUX_ARCH_OBJ:.o=.oS) + +libc-nomulti-y+=$(LIBC_LINUX_ARCH_OBJ) + +objclean-y+=nptl_linux_arch_clean + +nptl_linux_arch_clean: + $(do_rm) $(addprefix $(LINUX_ARCH_OUT)/*., o os oS) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S index 95c17f18e..9c7c46467 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S @@ -1,2 +1,2 @@ #define RESET_PID -#include <sysdeps/unix/sysv/linux/i386/clone.S> +#include <libc/sysdeps/linux/i386/clone.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c index 37e3d9499..35719be96 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/createthread.c @@ -46,4 +46,4 @@ /* Get the real implementation. */ -#include <nptl/sysdeps/pthread/createthread.c> +#include <sysdeps/pthread/createthread.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S index dc65b709a..955e119ab 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S @@ -30,8 +30,6 @@ # endif #endif -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S index 114284c44..2af9e38cd 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S @@ -20,7 +20,6 @@ #include <sysdep.h> #include <lowlevelbarrier.h> -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S index dc9b2b12a..16b019c4c 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S @@ -18,7 +18,6 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <lowlevelcond.h> #include <bits/kernel-features.h> @@ -28,7 +27,6 @@ # define LOCK lock #endif -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 #define FUTEX_REQUEUE 3 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S index d16f8b60f..11650c8e1 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S @@ -18,7 +18,6 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <lowlevelcond.h> #include <bits/kernel-features.h> @@ -28,7 +27,6 @@ # define LOCK lock #endif -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 #define FUTEX_REQUEUE 3 @@ -110,5 +108,3 @@ __pthread_cond_signal: call __lll_mutex_unlock_wake jmp 6b .size __pthread_cond_signal, .-__pthread_cond_signal -versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, - GLIBC_2_3_2) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S index 699c2cb22..e1f4c6d97 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S @@ -18,7 +18,6 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <lowlevelcond.h> #include <pthread-errnos.h> @@ -28,8 +27,6 @@ # define LOCK lock #endif -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 @@ -468,170 +465,3 @@ __condvar_tw_cleanup: .LENDCODE: .size __condvar_tw_cleanup, .-__condvar_tw_cleanup - - .section .gcc_except_table,"a",@progbits -.LexceptSTART: - .byte 0xff # @LPStart format (omit) - .byte 0xff # @TType format (omit) - .byte 0x0b # call-site format - # DW_EH_PE_sdata4 - .uleb128 .Lcstend-.Lcstbegin -.Lcstbegin: - .long .LcleanupSTART-.LSTARTCODE - .long .Ladd_cond_futex-.LcleanupSTART - .long __condvar_tw_cleanup-.LSTARTCODE - .uleb128 0 - .long .Ladd_cond_futex-.LSTARTCODE - .long .Lsub_cond_futex-.Ladd_cond_futex - .long __condvar_tw_cleanup2-.LSTARTCODE - .uleb128 0 - .long .Lsub_cond_futex-.LSTARTCODE - .long .LcleanupEND-.Lsub_cond_futex - .long __condvar_tw_cleanup-.LSTARTCODE - .uleb128 0 - .long .LcallUR-.LSTARTCODE - .long .LENDCODE-.LcallUR - .long 0 - .uleb128 0 -.Lcstend: - - - .section .eh_frame,"a",@progbits -.LSTARTFRAME: - .long L(ENDCIE)-L(STARTCIE) # Length of the CIE. -.LSTARTCIE: - .long 0 # CIE ID. - .byte 1 # Version number. -#ifdef SHARED - .string "zPLR" # NUL-terminated augmentation - # string. -#else - .string "zPL" # NUL-terminated augmentation - # string. -#endif - .uleb128 1 # Code alignment factor. - .sleb128 -4 # Data alignment factor. - .byte 8 # Return address register - # column. -#ifdef SHARED - .uleb128 7 # Augmentation value length. - .byte 0x9b # Personality: DW_EH_PE_pcrel - # + DW_EH_PE_sdata4 - # + DW_EH_PE_indirect - .long DW.ref.__gcc_personality_v0-. - .byte 0x1b # LSDA Encoding: DW_EH_PE_pcrel - # + DW_EH_PE_sdata4. - .byte 0x1b # FDE Encoding: DW_EH_PE_pcrel - # + DW_EH_PE_sdata4. -#else - .uleb128 6 # Augmentation value length. - .byte 0x0 # Personality: absolute - .long __gcc_personality_v0 - .byte 0x0 # LSDA Encoding: absolute -#endif - .byte 0x0c # DW_CFA_def_cfa - .uleb128 4 - .uleb128 4 - .byte 0x88 # DW_CFA_offset, column 0x8 - .uleb128 1 - .align 4 -.LENDCIE: - - .long .LENDFDE-.LSTARTFDE # Length of the FDE. -.LSTARTFDE: - .long .LSTARTFDE-.LSTARTFRAME # CIE pointer. -#ifdef SHARED - .long .LSTARTCODE-. # PC-relative start address - # of the code -#else - .long .LSTARTCODE # Start address of the code. -#endif - .long .LENDCODE-.LSTARTCODE # Length of the code. - .uleb128 4 # Augmentation size -#ifdef SHARED - .long .LexceptSTART-. -#else - .long .LexceptSTART -#endif - .byte 0x40+.Lpush_ebp-.LSTARTCODE # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 8 - .byte 0x85 # DW_CFA_offset %ebp - .uleb128 2 - .byte 0x40+ .Lpush_edi-.Lpush_ebp # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 12 - .byte 0x87 # DW_CFA_offset %edi - .uleb128 3 - .byte 0x40+.Lpush_esi-.Lpush_edi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16 - .byte 0x86 # DW_CFA_offset %esi - .uleb128 4 - .byte 0x40+.Lpush_ebx-.Lpush_esi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20 - .byte 0x83 # DW_CFA_offset %ebx - .uleb128 5 - .byte 2 # DW_CFA_advance_loc1 - .byte .Lsubl-.Lpush_ebx - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20+FRAME_SIZE - .byte 3 # DW_CFA_advance_loc2 - .2byte .Laddl-.Lsubl - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20 - .byte 0x40+.Lpop_ebx-.Laddl # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16 - .byte 0xc3 # DW_CFA_restore %ebx - .byte 0x40+.Lpop_esi-.Lpop_ebx # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 12 - .byte 0xc6 # DW_CFA_restore %esi - .byte 0x40+.Lpop_edi-.Lpop_esi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 8 - .byte 0xc7 # DW_CFA_restore %edi - .byte 0x40+.Lpop_ebp-.Lpop_edi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 4 - .byte 0xc5 # DW_CFA_restore %ebp - .byte 0x40+.LSbl1-.Lpop_edi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20 - .byte 0x40+.LSbl2-.LSbl1 # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20+FRAME_SIZE - .byte 0x85 # DW_CFA_offset %ebp - .uleb128 2 - .byte 0x87 # DW_CFA_offset %edi - .uleb128 3 - .byte 0x86 # DW_CFA_offset %esi - .uleb128 4 - .byte 0x83 # DW_CFA_offset %ebx - .uleb128 5 - .byte 0x40+.LSbl3-.LSbl2 # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20 -#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS - .byte 0x40+.LSbl4-.LSbl3 # DW_CFA_advance_loc+N -#else - .byte 4 # DW_CFA_advance_loc4 - .long .LSbl5-.LSbl3 -#endif - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 20+FRAME_SIZE - .align 4 -.LENDFDE: - -#ifdef SHARED - .hidden DW.ref.__gcc_personality_v0 - .weak DW.ref.__gcc_personality_v0 - .section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits - .align 4 - .type DW.ref.__gcc_personality_v0, @object - .size DW.ref.__gcc_personality_v0, 4 -DW.ref.__gcc_personality_v0: - .long __gcc_personality_v0 -#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S index d28278515..4cb0073dc 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S @@ -18,7 +18,6 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <lowlevelcond.h> #include <tcb-offsets.h> @@ -28,7 +27,6 @@ # define LOCK lock #endif -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 @@ -359,165 +357,3 @@ __condvar_w_cleanup: .LENDCODE: .size __condvar_w_cleanup, .-__condvar_w_cleanup - - .section .gcc_except_table,"a",@progbits -.LexceptSTART: - .byte 0xff # @LPStart format (omit) - .byte 0xff # @TType format (omit) - .byte 0x0b # call-site format - # DW_EH_PE_sdata4 - .uleb128 .Lcstend-.Lcstbegin -.Lcstbegin: - .long .LcleanupSTART-.LSTARTCODE - .long .Ladd_cond_futex-.LcleanupSTART - .long __condvar_w_cleanup-.LSTARTCODE - .uleb128 0 - .long .Ladd_cond_futex-.LSTARTCODE - .long .Lsub_cond_futex-.Ladd_cond_futex - .long __condvar_w_cleanup2-.LSTARTCODE - .uleb128 0 - .long .Lsub_cond_futex-.LSTARTCODE - .long .LcleanupEND-.Lsub_cond_futex - .long __condvar_w_cleanup-.LSTARTCODE - .uleb128 0 - .long .LcallUR-.LSTARTCODE - .long .LENDCODE-.LcallUR - .long 0 - .uleb128 0 -.Lcstend: - - .section .eh_frame,"a",@progbits -.LSTARTFRAME: - .long L(ENDCIE)-L(STARTCIE) # Length of the CIE. -.LSTARTCIE: - .long 0 # CIE ID. - .byte 1 # Version number. -#ifdef SHARED - .string "zPLR" # NUL-terminated augmentation - # string. -#else - .string "zPL" # NUL-terminated augmentation - # string. -#endif - .uleb128 1 # Code alignment factor. - .sleb128 -4 # Data alignment factor. - .byte 8 # Return address register - # column. -#ifdef SHARED - .uleb128 7 # Augmentation value length. - .byte 0x9b # Personality: DW_EH_PE_pcrel - # + DW_EH_PE_sdata4 - # + DW_EH_PE_indirect - .long DW.ref.__gcc_personality_v0-. - .byte 0x1b # LSDA Encoding: DW_EH_PE_pcrel - # + DW_EH_PE_sdata4. - .byte 0x1b # FDE Encoding: DW_EH_PE_pcrel - # + DW_EH_PE_sdata4. -#else - .uleb128 6 # Augmentation value length. - .byte 0x0 # Personality: absolute - .long __gcc_personality_v0 - .byte 0x0 # LSDA Encoding: absolute -#endif - .byte 0x0c # DW_CFA_def_cfa - .uleb128 4 - .uleb128 4 - .byte 0x88 # DW_CFA_offset, column 0x8 - .uleb128 1 - .align 4 -.LENDCIE: - - .long .LENDFDE-.LSTARTFDE # Length of the FDE. -.LSTARTFDE: - .long .LSTARTFDE-.LSTARTFRAME # CIE pointer. -#ifdef SHARED - .long .LSTARTCODE-. # PC-relative start address - # of the code. -#else - .long .LSTARTCODE # Start address of the code. -#endif - .long .LENDCODE-.LSTARTCODE # Length of the code. - .uleb128 4 # Augmentation size -#ifdef SHARED - .long .LexceptSTART-. -#else - .long .LexceptSTART -#endif - .byte 0x40+.Lpush_edi-.LSTARTCODE # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 8 - .byte 0x87 # DW_CFA_offset %edi - .uleb128 2 - .byte 0x40+.Lpush_esi-.Lpush_edi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 12 - .byte 0x86 # DW_CFA_offset %esi - .uleb128 3 - .byte 0x40+.Lpush_ebx-.Lpush_esi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16 - .byte 0x83 # DW_CFA_offset %ebx - .uleb128 4 - .byte 2 # DW_CFA_advance_loc1 - .byte .Lsubl-.Lpush_ebx - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16+FRAME_SIZE - .byte 2 # DW_CFA_advance_loc1 - .byte .Laddl-.Lsubl - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16 - .byte 0x40+ .Lpop_ebx-.Laddl # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 12 - .byte 0xc3 # DW_CFA_restore %ebx - .byte 0x40+.Lpop_esi-.Lpop_ebx # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 8 - .byte 0xc6 # DW_CFA_restore %esi - .byte 0x40+.Lpop_edi-.Lpop_esi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 4 - .byte 0xc7 # DW_CFA_restore %edi - .byte 0x40+.LSbl1-.Lpop_edi # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16 - .byte 0x87 # DW_CFA_offset %edi - .uleb128 2 - .byte 0x86 # DW_CFA_offset %esi - .uleb128 3 - .byte 0x83 # DW_CFA_offset %ebx - .uleb128 4 - .byte 0x40+.LSbl2-.LSbl1 # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16+FRAME_SIZE - .byte 0x40+.LSbl3-.LSbl2 # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16 - .byte 0x40+.LSbl4-.LSbl3 # DW_CFA_advance_loc+N - .byte 14 # DW_CFA_def_cfa_offset - .uleb128 16+FRAME_SIZE - .align 4 -.LENDFDE: - - -#ifdef PIC - .section .gnu.linkonce.t.__i686.get_pc_thunk.cx,"ax",@progbits - .globl __i686.get_pc_thunk.cx - .hidden __i686.get_pc_thunk.cx - .type __i686.get_pc_thunk.cx,@function -__i686.get_pc_thunk.cx: - movl (%esp), %ecx; - ret - .size __i686.get_pc_thunk.cx,.-__i686.get_pc_thunk.cx -#endif - -#ifdef SHARED - .hidden DW.ref.__gcc_personality_v0 - .weak DW.ref.__gcc_personality_v0 - .section .gnu.linkonce.d.DW.ref.__gcc_personality_v0,"aw",@progbits - .align 4 - .type DW.ref.__gcc_personality_v0, @object - .size DW.ref.__gcc_personality_v0, 4 -DW.ref.__gcc_personality_v0: - .long __gcc_personality_v0 -#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S index db0639d21..aec79f07e 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S @@ -20,9 +20,9 @@ #include <sysdep.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S index eb5665b43..3717d7ef5 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S @@ -20,10 +20,9 @@ #include <sysdep.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S index d9db77ba0..09c9e30ca 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S @@ -20,10 +20,9 @@ #include <sysdep.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S index 64aac3255..597c82fa8 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S @@ -21,7 +21,6 @@ #include <lowlevelrwlock.h> -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S index ea9cc170d..bb384a267 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S @@ -20,9 +20,8 @@ #include <sysdep.h> #include <lowlevelrwlock.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> - -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S index 22f23e9af..85bccd74d 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_post.S @@ -18,7 +18,6 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <pthread-errnos.h> #ifndef UP @@ -27,7 +26,6 @@ # define #endif -#define SYS_futex 240 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S index 318b53a87..f306e400d 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S @@ -18,8 +18,8 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> #ifndef UP # define LOCK lock @@ -27,8 +27,6 @@ # define #endif -#define SYS_gettimeofday __NR_gettimeofday -#define SYS_futex 240 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S index bd5ffad07..b5e3df6b3 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S @@ -18,7 +18,6 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <pthread-errnos.h> #ifndef UP diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S index ec274ba4e..56c4caef7 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/i486/sem_wait.S @@ -18,8 +18,8 @@ 02111-1307 USA. */ #include <sysdep.h> -#include <shlib-compat.h> #include <pthread-errnos.h> +#include <tcb-offsets.h> #ifndef UP # define LOCK lock @@ -27,7 +27,6 @@ # define #endif -#define SYS_futex 240 #define FUTEX_WAKE 1 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h index b86f11c9b..785f2acf2 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/lowlevellock.h @@ -23,16 +23,25 @@ #include <time.h> #include <sys/param.h> #include <bits/pthreadtypes.h> +#include <atomic.h> +#include <sysdep.h> + +/* We have a separate internal lock implementation which is not tied + to binary compatibility. */ + +/* Type for lock object. */ +typedef int lll_lock_t; + +/* Initializers for lock. */ +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) + +#include <tls.h> #ifndef LOCK_INSTR -# ifdef UP -# define LOCK_INSTR /* nothing */ -# else -# define LOCK_INSTR "lock;" -# endif +# define LOCK_INSTR "lock;" #endif -#define SYS_futex 240 #define FUTEX_WAIT 0 #define FUTEX_WAKE 1 @@ -51,47 +60,39 @@ # define LLL_EBX_REG "b" #endif -#ifdef I386_USE_SYSENTER -# ifdef SHARED -# define LLL_ENTER_KERNEL "call *%%gs:%P6\n\t" -# else -# define LLL_ENTER_KERNEL "call *_dl_sysinfo\n\t" -# endif -#else -# define LLL_ENTER_KERNEL "int $0x80\n\t" -#endif +#define LLL_ENTER_KERNEL "int $0x80\n\t" /* Delay in spinlock loop. */ -#define BUSY_WAIT_NOP asm ("rep; nop") +#define BUSY_WAIT_NOP __asm__ ("rep; nop") #define lll_futex_wait(futex, val) \ - do { \ - int __ignore; \ - register __typeof (val) _val asm ("edx") = (val); \ - __asm __volatile (LLL_EBX_LOAD \ + ({ \ + int __ret; \ + register __typeof (val) _val __asm__ ("edx") = (val); \ + __asm__ __volatile (LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ - : "=a" (__ignore) \ + : "=a" (__ret) \ : "0" (SYS_futex), LLL_EBX_REG (futex), "S" (0), \ "c" (FUTEX_WAIT), "d" (_val), \ "i" (offsetof (tcbhead_t, sysinfo))); \ - } while (0) + __ret; }) #define lll_futex_wake(futex, nr) \ - do { \ - int __ignore; \ - register __typeof (nr) _nr asm ("edx") = (nr); \ - __asm __volatile (LLL_EBX_LOAD \ + ({ \ + int __ret; \ + register __typeof (nr) _nr __asm__ ("edx") = (nr); \ + __asm__ __volatile (LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ - : "=a" (__ignore) \ + : "=a" (__ret) \ : "0" (SYS_futex), LLL_EBX_REG (futex), \ "c" (FUTEX_WAKE), "d" (_nr), \ "i" (0) /* phony, to align next arg's number */, \ "i" (offsetof (tcbhead_t, sysinfo))); \ - } while (0) + __ret; }) /* Does not preserve %eax and %ecx. */ @@ -113,7 +114,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) to be nonzero. */ #define lll_mutex_trylock(futex) \ ({ int ret; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ + __asm__ __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ "0" (LLL_MUTEX_LOCK_INITIALIZER) \ @@ -123,7 +124,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) #define lll_mutex_cond_trylock(futex) \ ({ int ret; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ + __asm__ __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (LLL_MUTEX_LOCK_INITIALIZER_WAITERS), \ "m" (futex), "0" (LLL_MUTEX_LOCK_INITIALIZER) \ @@ -133,7 +134,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) #define lll_mutex_lock(futex) \ (void) ({ int ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ + __asm__ __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ "jnz _L_mutex_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_lock_%=,@function\n" \ @@ -153,7 +154,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) always wakeup waiters. */ #define lll_mutex_cond_lock(futex) \ (void) ({ int ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ + __asm__ __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ "jnz _L_mutex_cond_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_cond_lock_%=,@function\n" \ @@ -171,7 +172,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) #define lll_mutex_timedlock(futex, timeout) \ ({ int result, ignore1, ignore2; \ - __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ + __asm__ __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ "jnz _L_mutex_timedlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_timedlock_%=,@function\n" \ @@ -192,7 +193,7 @@ extern int __lll_mutex_unlock_wake (int *__futex) #define lll_mutex_unlock(futex) \ (void) ({ int ignore; \ - __asm __volatile (LOCK_INSTR "subl $1,%0\n\t" \ + __asm__ __volatile (LOCK_INSTR "subl $1,%0\n\t" \ "jne _L_mutex_unlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_unlock_%=,@function\n" \ @@ -212,17 +213,6 @@ extern int __lll_mutex_unlock_wake (int *__futex) (futex != 0) -/* We have a separate internal lock implementation which is not tied - to binary compatibility. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - -/* Initializers for lock. */ -#define LLL_LOCK_INITIALIZER (0) -#define LLL_LOCK_INITIALIZER_LOCKED (1) - - extern int __lll_lock_wait (int val, int *__futex) __attribute ((regparm (2))) attribute_hidden; extern int __lll_unlock_wake (int *__futex) @@ -236,20 +226,19 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; 2 - taken by more users */ -#if defined NOT_IN_libc || defined UP +#if defined NOT_IN_libc # define lll_trylock(futex) lll_mutex_trylock (futex) # define lll_lock(futex) lll_mutex_lock (futex) # define lll_unlock(futex) lll_mutex_unlock (futex) #else /* Special versions of the macros for use in libc itself. They avoid - the lock prefix when the thread library is not used. + the lock prefix when the thread library is not used. */ + - XXX In future we might even want to avoid it on UP machines. */ -# include <tls.h> # define lll_trylock(futex) \ ({ unsigned char ret; \ - __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \ + __asm__ __volatile ("cmpl $0, %%gs:%P5\n\t" \ "je,pt 0f\n\t" \ "lock\n" \ "0:\tcmpxchgl %2, %1; setne %0" \ @@ -263,7 +252,7 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; # define lll_lock(futex) \ (void) ({ int ignore1, ignore2; \ - __asm __volatile ("cmpl $0, %%gs:%P6\n\t" \ + __asm__ __volatile ("cmpl $0, %%gs:%P6\n\t" \ "je,pt 0f\n\t" \ "lock\n" \ "0:\tcmpxchgl %1, %2\n\t" \ @@ -285,7 +274,7 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; # define lll_unlock(futex) \ (void) ({ int ignore; \ - __asm __volatile ("cmpl $0, %%gs:%P3\n\t" \ + __asm__ __volatile ("cmpl $0, %%gs:%P3\n\t" \ "je,pt 0f\n\t" \ "lock\n" \ "0:\tsubl $1,%0\n\t" \ @@ -317,21 +306,21 @@ extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; The macro parameter must not have any side effect. */ #define lll_wait_tid(tid) \ - do { \ - int __ignore; \ - register __typeof (tid) _tid asm ("edx") = (tid); \ + ({ \ + int __ret; \ + register __typeof (tid) _tid __asm__ ("edx") = (tid); \ if (_tid != 0) \ - __asm __volatile (LLL_EBX_LOAD \ + __asm__ __volatile (LLL_EBX_LOAD \ "1:\tmovl %1, %%eax\n\t" \ LLL_ENTER_KERNEL \ "cmpl $0, (%%ebx)\n\t" \ "jne,pn 1b\n\t" \ LLL_EBX_LOAD \ - : "=&a" (__ignore) \ + : "=&a" (__ret) \ : "i" (SYS_futex), LLL_EBX_REG (&tid), "S" (0), \ "c" (FUTEX_WAIT), "d" (_tid), \ "i" (offsetof (tcbhead_t, sysinfo))); \ - } while (0) + __ret; }) extern int __lll_timedwait_tid (int *tid, const struct timespec *abstime) __attribute__ ((regparm (2))) attribute_hidden; diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h index cc3282fbd..5bdba3f51 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/not-cancel.h @@ -26,13 +26,20 @@ extern int __close_nocancel (int) attribute_hidden; extern int __read_nocancel (int, void *, size_t) attribute_hidden; extern int __write_nocancel (int, const void *, size_t) attribute_hidden; extern pid_t __waitpid_nocancel (pid_t, int *, int) attribute_hidden; + +libc_hidden_proto(__open_nocancel) +libc_hidden_proto(__close_nocancel) +libc_hidden_proto(__read_nocancel) +libc_hidden_proto(__write_nocancel) +libc_hidden_proto(__waitpid_nocancel) + #else -#define __open_nocancel(name, ...) __open (name, __VA_ARGS__) -#define __close_nocancel(fd) __close (fd) -#define __read_nocancel(fd, buf, len) __read (fd, buf, len) -#define __write_nocancel(fd, buf, len) __write (fd, buf, len) +#define __open_nocancel(name, ...) open (name, __VA_ARGS__) +#define __close_nocancel(fd) close (fd) +#define __read_nocancel(fd, buf, len) read (fd, buf, len) +#define __write_nocancel(fd, buf, len) write (fd, buf, len) #define __waitpid_nocancel(pid, stat_loc, options) \ - __waitpid (pid, stat_loc, options) + waitpid (pid, stat_loc, options) #endif /* Uncancelable open. */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-__syscall_error.c b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-__syscall_error.c new file mode 100644 index 000000000..620640ad6 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-__syscall_error.c @@ -0,0 +1 @@ +#include <../../../../../../../libc/sysdeps/linux/i386/__syscall_error.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S index 7ab222e1b..939538927 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S @@ -17,10 +17,6 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> #include <tcb-offsets.h> /* Save the PID value. */ @@ -37,32 +33,4 @@ movl %edx, %gs:PID; \ 1: -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - /* Pop the return PC value into ECX. */ - popl %ecx - - SAVE_PID - - /* Stuff the syscall number in EAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - int $0x80 - - RESTORE_PID - - /* Jump to the return PC. Don't jump directly since this - disturbs the branch target cache. Instead push the return - address back on the stack. */ - pushl %ecx - - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ -.Lpseudo_end: - ret -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) +#include <../../../../../../../libc/sysdeps/linux/i386/vfork.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S index 312933c5e..97b4afbf0 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_once.S @@ -26,7 +26,6 @@ # define LOCK #endif -#define SYS_futex 240 #define FUTEX_WAKE 1 .comm __fork_generation, 4, 4 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c index 80c0b5216..d36e5373d 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_init.c @@ -1 +1 @@ -#include <nptl/sysdeps/i386/pthread_spin_init.c> +#include <sysdeps/i386/pthread_spin_init.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S index 41c71f348..8bae0fd31 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pthread_spin_unlock.S @@ -1 +1 @@ -#include <nptl/sysdeps/i386/pthread_spin_unlock.S> +#include <sysdeps/i386/pthread_spin_unlock.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/smp.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/smp.h new file mode 100644 index 000000000..2c0cbe99a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/smp.h @@ -0,0 +1,24 @@ +/* Determine whether the host has multiple processors. SH version. + Copyright (C) 2002 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +static inline int +is_smp_system (void) +{ + return 0; +} diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h index 147f5c847..f32c5bd20 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h @@ -20,7 +20,7 @@ #include <sysdep.h> #include <tls.h> #ifndef __ASSEMBLER__ -# include <nptl/pthreadP.h> +# include <pthreadP.h> #endif #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep.h b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep.h new file mode 100644 index 000000000..6ab05606b --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/sysdep.h @@ -0,0 +1,336 @@ +/* Copyright (C) 1992,1993,1995-2000,2002-2006,2007 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper, <drepper@gnu.org>, August 1995. + + 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 _LINUX_I386_SYSDEP_H +#define _LINUX_I386_SYSDEP_H 1 + +#include <sys/syscall.h> +#include <sysdeps/i386/sysdep.h> + +#ifndef offsetof +# define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) +#endif + +/* For Linux we can use the system call table in the header file + /usr/include/asm/unistd.h + of the kernel. But these symbols do not follow the SYS_* syntax + so we have to redefine the `SYS_ify' macro here. */ +#undef SYS_ify +#define SYS_ify(syscall_name) __NR_##syscall_name + +#if defined USE_DL_SYSINFO \ + && (!defined NOT_IN_libc || defined IS_IN_libpthread) +# define I386_USE_SYSENTER 1 +#else +# undef I386_USE_SYSENTER +#endif + +#ifdef __ASSEMBLER__ + +/* Linux uses a negative return value to indicate syscall errors, + unlike most Unices, which use the condition codes' carry flag. + + Since version 2.1 the return value of a system call might be + negative even if the call succeeded. E.g., the `lseek' system call + might return a large offset. Therefore we must not anymore test + for < 0, but test for a real error by making sure the value in %eax + is a real error number. Linus said he will make sure the no syscall + returns a value in -1 .. -4095 as a valid result so we can savely + test with -4095. */ + +/* We don't want the label for the error handle to be global when we define + it here. */ +#ifdef PIC +# define SYSCALL_ERROR_LABEL 0f +#else +# define SYSCALL_ERROR_LABEL syscall_error +#endif + +#undef PSEUDO +#define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args); \ + cmpl $-4095, %eax; \ + jae SYSCALL_ERROR_LABEL; \ + L(pseudo_end): + +#undef PSEUDO_END +#define PSEUDO_END(name) \ + SYSCALL_ERROR_HANDLER \ + END (name) + +#undef PSEUDO_NOERRNO +#define PSEUDO_NOERRNO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args) + +#undef PSEUDO_END_NOERRNO +#define PSEUDO_END_NOERRNO(name) \ + END (name) + +#define ret_NOERRNO ret + +/* The function has to return the error code. */ +#undef PSEUDO_ERRVAL +#define PSEUDO_ERRVAL(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args); \ + negl %eax + +#undef PSEUDO_END_ERRVAL +#define PSEUDO_END_ERRVAL(name) \ + END (name) + +#define ret_ERRVAL ret + +#ifndef PIC +# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */ +#else + +# if RTLD_PRIVATE_ERRNO +# define SYSCALL_ERROR_HANDLER \ +0:SETUP_PIC_REG(cx); \ + addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ + xorl %edx, %edx; \ + subl %eax, %edx; \ + movl %edx, rtld_errno@GOTOFF(%ecx); \ + orl $-1, %eax; \ + jmp L(pseudo_end); + +# elif defined _LIBC_REENTRANT + +# if USE___THREAD +# ifndef NOT_IN_libc +# define SYSCALL_ERROR_ERRNO __libc_errno +# else +# define SYSCALL_ERROR_ERRNO errno +# endif +# define SYSCALL_ERROR_HANDLER \ +0:SETUP_PIC_REG (cx); \ + addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ + movl SYSCALL_ERROR_ERRNO@GOTNTPOFF(%ecx), %ecx; \ + xorl %edx, %edx; \ + subl %eax, %edx; \ + SYSCALL_ERROR_HANDLER_TLS_STORE (%edx, %ecx); \ + orl $-1, %eax; \ + jmp L(pseudo_end); +# ifndef NO_TLS_DIRECT_SEG_REFS +# define SYSCALL_ERROR_HANDLER_TLS_STORE(src, destoff) \ + movl src, %gs:(destoff) +# else +# define SYSCALL_ERROR_HANDLER_TLS_STORE(src, destoff) \ + addl %gs:0, destoff; \ + movl src, (destoff) +# endif +# else +# define SYSCALL_ERROR_HANDLER \ +0:pushl %ebx; \ + cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (ebx, 0); \ + SETUP_PIC_REG (bx); \ + addl $_GLOBAL_OFFSET_TABLE_, %ebx; \ + xorl %edx, %edx; \ + subl %eax, %edx; \ + pushl %edx; \ + cfi_adjust_cfa_offset (4); \ + call __errno_location@PLT; \ + popl %ecx; \ + cfi_adjust_cfa_offset (-4); \ + popl %ebx; \ + cfi_adjust_cfa_offset (-4); \ + cfi_restore (ebx); \ + movl %ecx, (%eax); \ + orl $-1, %eax; \ + jmp L(pseudo_end); +/* A quick note: it is assumed that the call to `__errno_location' does + not modify the stack! */ +# endif +# else +/* Store (- %eax) into errno through the GOT. */ +# define SYSCALL_ERROR_HANDLER \ +0:SETUP_PIC_REG(cx); \ + addl $_GLOBAL_OFFSET_TABLE_, %ecx; \ + xorl %edx, %edx; \ + subl %eax, %edx; \ + movl errno@GOT(%ecx), %ecx; \ + movl %edx, (%ecx); \ + orl $-1, %eax; \ + jmp L(pseudo_end); +# endif /* _LIBC_REENTRANT */ +#endif /* PIC */ + + +/* The original calling convention for system calls on Linux/i386 is + to use int $0x80. */ +#ifdef I386_USE_SYSENTER +# ifdef SHARED +# define ENTER_KERNEL call *%gs:SYSINFO_OFFSET +# else +# define ENTER_KERNEL call *_dl_sysinfo +# endif +#else +# define ENTER_KERNEL int $0x80 +#endif + +/* Linux takes system call arguments in registers: + + syscall number %eax call-clobbered + arg 1 %ebx call-saved + arg 2 %ecx call-clobbered + arg 3 %edx call-clobbered + arg 4 %esi call-saved + arg 5 %edi call-saved + arg 6 %ebp call-saved + + The stack layout upon entering the function is: + + 24(%esp) Arg# 6 + 20(%esp) Arg# 5 + 16(%esp) Arg# 4 + 12(%esp) Arg# 3 + 8(%esp) Arg# 2 + 4(%esp) Arg# 1 + (%esp) Return address + + (Of course a function with say 3 arguments does not have entries for + arguments 4, 5, and 6.) + + The following code tries hard to be optimal. A general assumption + (which is true according to the data books I have) is that + + 2 * xchg is more expensive than pushl + movl + popl + + Beside this a neat trick is used. The calling conventions for Linux + tell that among the registers used for parameters %ecx and %edx need + not be saved. Beside this we may clobber this registers even when + they are not used for parameter passing. + + As a result one can see below that we save the content of the %ebx + register in the %edx register when we have less than 3 arguments + (2 * movl is less expensive than pushl + popl). + + Second unlike for the other registers we don't save the content of + %ecx and %edx when we have more than 1 and 2 registers resp. + + The code below might look a bit long but we have to take care for + the pipelined processors (i586). Here the `pushl' and `popl' + instructions are marked as NP (not pairable) but the exception is + two consecutive of these instruction. This gives no penalty on + other processors though. */ + +#undef DO_CALL +#define DO_CALL(syscall_name, args) \ + PUSHARGS_##args \ + DOARGS_##args \ + movl $SYS_ify (syscall_name), %eax; \ + ENTER_KERNEL \ + POPARGS_##args + +#define PUSHARGS_0 /* No arguments to push. */ +#define DOARGS_0 /* No arguments to frob. */ +#define POPARGS_0 /* No arguments to pop. */ +#define _PUSHARGS_0 /* No arguments to push. */ +#define _DOARGS_0(n) /* No arguments to frob. */ +#define _POPARGS_0 /* No arguments to pop. */ + +#define PUSHARGS_1 movl %ebx, %edx; L(SAVEBX1): PUSHARGS_0 +#define DOARGS_1 _DOARGS_1 (4) +#define POPARGS_1 POPARGS_0; movl %edx, %ebx; L(RESTBX1): +#define _PUSHARGS_1 pushl %ebx; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (ebx, 0); L(PUSHBX1): _PUSHARGS_0 +#define _DOARGS_1(n) movl n(%esp), %ebx; _DOARGS_0(n-4) +#define _POPARGS_1 _POPARGS_0; popl %ebx; cfi_adjust_cfa_offset (-4); \ + cfi_restore (ebx); L(POPBX1): + +#define PUSHARGS_2 PUSHARGS_1 +#define DOARGS_2 _DOARGS_2 (8) +#define POPARGS_2 POPARGS_1 +#define _PUSHARGS_2 _PUSHARGS_1 +#define _DOARGS_2(n) movl n(%esp), %ecx; _DOARGS_1 (n-4) +#define _POPARGS_2 _POPARGS_1 + +#define PUSHARGS_3 _PUSHARGS_2 +#define DOARGS_3 _DOARGS_3 (16) +#define POPARGS_3 _POPARGS_3 +#define _PUSHARGS_3 _PUSHARGS_2 +#define _DOARGS_3(n) movl n(%esp), %edx; _DOARGS_2 (n-4) +#define _POPARGS_3 _POPARGS_2 + +#define PUSHARGS_4 _PUSHARGS_4 +#define DOARGS_4 _DOARGS_4 (24) +#define POPARGS_4 _POPARGS_4 +#define _PUSHARGS_4 pushl %esi; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (esi, 0); L(PUSHSI1): _PUSHARGS_3 +#define _DOARGS_4(n) movl n(%esp), %esi; _DOARGS_3 (n-4) +#define _POPARGS_4 _POPARGS_3; popl %esi; cfi_adjust_cfa_offset (-4); \ + cfi_restore (esi); L(POPSI1): + +#define PUSHARGS_5 _PUSHARGS_5 +#define DOARGS_5 _DOARGS_5 (32) +#define POPARGS_5 _POPARGS_5 +#define _PUSHARGS_5 pushl %edi; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (edi, 0); L(PUSHDI1): _PUSHARGS_4 +#define _DOARGS_5(n) movl n(%esp), %edi; _DOARGS_4 (n-4) +#define _POPARGS_5 _POPARGS_4; popl %edi; cfi_adjust_cfa_offset (-4); \ + cfi_restore (edi); L(POPDI1): + +#define PUSHARGS_6 _PUSHARGS_6 +#define DOARGS_6 _DOARGS_6 (40) +#define POPARGS_6 _POPARGS_6 +#define _PUSHARGS_6 pushl %ebp; cfi_adjust_cfa_offset (4); \ + cfi_rel_offset (ebp, 0); L(PUSHBP1): _PUSHARGS_5 +#define _DOARGS_6(n) movl n(%esp), %ebp; _DOARGS_5 (n-4) +#define _POPARGS_6 _POPARGS_5; popl %ebp; cfi_adjust_cfa_offset (-4); \ + cfi_restore (ebp); L(POPBP1): + +#endif /* __ASSEMBLER__ */ + + +/* Pointer mangling support. */ +#if defined NOT_IN_libc && defined IS_IN_rtld +/* We cannot use the thread descriptor because in ld.so we use setjmp + earlier than the descriptor is initialized. Using a global variable + is too complicated here since we have no PC-relative addressing mode. */ +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(reg) xorl %gs:POINTER_GUARD, reg; \ + roll $9, reg +# define PTR_DEMANGLE(reg) rorl $9, reg; \ + xorl %gs:POINTER_GUARD, reg +# else +# define PTR_MANGLE(var) asm ("xorl %%gs:%c2, %0\n" \ + "roll $9, %0" \ + : "=r" (var) \ + : "0" (var), \ + "i" (offsetof (tcbhead_t, \ + pointer_guard))) +# define PTR_DEMANGLE(var) asm ("rorl $9, %0\n" \ + "xorl %%gs:%c2, %0" \ + : "=r" (var) \ + : "0" (var), \ + "i" (offsetof (tcbhead_t, \ + pointer_guard))) +# endif +#endif + +#endif /* linux/i386/sysdep.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S index 52336102c..dc7fb2ec4 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S @@ -35,4 +35,4 @@ 1: -#include <sysdeps/unix/sysv/linux/i386/vfork.S> +#include <libc/sysdeps/linux/i386/vfork.S> |