2018-01-01 00:32:25 +00:00
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/* Copyright (C) 2005-2018 Free Software Foundation, Inc.
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2012-11-09 17:53:51 +00:00
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _LINUX_AARCH64_SYSDEP_H
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#define _LINUX_AARCH64_SYSDEP_H 1
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#include <sysdeps/unix/sysdep.h>
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#include <sysdeps/aarch64/sysdep.h>
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#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
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/* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO. */
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#include <dl-sysdep.h>
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#include <tls.h>
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/* In order to get __set_errno() definition in INLINE_SYSCALL. */
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#ifndef __ASSEMBLER__
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#include <errno.h>
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#endif
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/* For Linux we can use the system call table in the header file
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/usr/include/asm/unistd.h
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of the kernel. But these symbols do not follow the SYS_* syntax
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so we have to redefine the `SYS_ify' macro here. */
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#undef SYS_ify
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#define SYS_ify(syscall_name) (__NR_##syscall_name)
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#ifdef __ASSEMBLER__
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/* Linux uses a negative return value to indicate syscall errors,
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unlike most Unices, which use the condition codes' carry flag.
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Since version 2.1 the return value of a system call might be
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negative even if the call succeeded. E.g., the `lseek' system call
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might return a large offset. Therefore we must not anymore test
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for < 0, but test for a real error by making sure the value in R0
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is a real error number. Linus said he will make sure the no syscall
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returns a value in -1 .. -4095 as a valid result so we can safely
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test with -4095. */
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# undef PSEUDO
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# define PSEUDO(name, syscall_name, args) \
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.text; \
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ENTRY (name); \
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DO_CALL (syscall_name, args); \
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2014-05-20 18:40:22 +00:00
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cmn x0, #4095; \
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b.cs .Lsyscall_error;
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2012-11-09 17:53:51 +00:00
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# undef PSEUDO_END
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# define PSEUDO_END(name) \
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SYSCALL_ERROR_HANDLER \
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END (name)
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# undef PSEUDO_NOERRNO
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# define PSEUDO_NOERRNO(name, syscall_name, args) \
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.text; \
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ENTRY (name); \
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DO_CALL (syscall_name, args);
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# undef PSEUDO_END_NOERRNO
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# define PSEUDO_END_NOERRNO(name) \
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END (name)
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2014-05-29 16:14:49 +00:00
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# define ret_NOERRNO ret
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2012-11-09 17:53:51 +00:00
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/* The function has to return the error code. */
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# undef PSEUDO_ERRVAL
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# define PSEUDO_ERRVAL(name, syscall_name, args) \
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.text; \
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ENTRY (name) \
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DO_CALL (syscall_name, args); \
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neg x0, x0
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# undef PSEUDO_END_ERRVAL
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# define PSEUDO_END_ERRVAL(name) \
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END (name)
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2014-05-29 16:14:49 +00:00
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# define ret_ERRVAL ret
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2012-11-09 17:53:51 +00:00
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2014-11-24 09:33:45 +00:00
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# if !IS_IN (libc)
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2014-05-20 18:40:22 +00:00
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# define SYSCALL_ERROR .Lsyscall_error
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2012-11-09 17:53:51 +00:00
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# if RTLD_PRIVATE_ERRNO
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# define SYSCALL_ERROR_HANDLER \
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2014-05-20 18:40:22 +00:00
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.Lsyscall_error: \
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2012-11-09 17:53:51 +00:00
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adrp x1, C_SYMBOL_NAME(rtld_errno); \
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neg w0, w0; \
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2014-05-21 15:36:03 +00:00
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str w0, [x1, :lo12:C_SYMBOL_NAME(rtld_errno)]; \
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2012-11-09 17:53:51 +00:00
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mov x0, -1; \
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RET;
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# else
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# define SYSCALL_ERROR_HANDLER \
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2014-05-20 18:40:22 +00:00
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.Lsyscall_error: \
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2014-05-20 20:34:59 +00:00
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adrp x1, :gottprel:errno; \
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neg w2, w0; \
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2017-02-08 18:30:43 +00:00
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ldr PTR_REG(1), [x1, :gottprel_lo12:errno]; \
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2014-05-20 20:34:59 +00:00
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mrs x3, tpidr_el0; \
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2012-11-09 17:53:51 +00:00
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mov x0, -1; \
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2014-05-20 20:34:59 +00:00
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str w2, [x1, x3]; \
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2012-11-09 17:53:51 +00:00
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RET;
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# endif
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# else
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# define SYSCALL_ERROR __syscall_error
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2014-05-20 18:40:22 +00:00
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# define SYSCALL_ERROR_HANDLER \
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.Lsyscall_error: \
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b __syscall_error;
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2012-11-09 17:53:51 +00:00
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# endif
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/* Linux takes system call args in registers:
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2014-05-25 16:33:00 +00:00
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syscall number x8
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2012-11-09 17:53:51 +00:00
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arg 1 x0
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arg 2 x1
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arg 3 x2
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arg 4 x3
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arg 5 x4
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arg 6 x5
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arg 7 x6
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The compiler is going to form a call by coming here, through PSEUDO, with
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arguments
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syscall number in the DO_CALL macro
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arg 1 x0
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arg 2 x1
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arg 3 x2
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arg 4 x3
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arg 5 x4
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arg 6 x5
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arg 7 x6
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*/
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# undef DO_CALL
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# define DO_CALL(syscall_name, args) \
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mov x8, SYS_ify (syscall_name); \
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2014-05-22 15:38:05 +00:00
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svc 0
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2012-11-09 17:53:51 +00:00
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#else /* not __ASSEMBLER__ */
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/* List of system calls which are supported as vsyscalls. */
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# define HAVE_CLOCK_GETRES_VSYSCALL 1
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# define HAVE_CLOCK_GETTIME_VSYSCALL 1
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2015-04-17 14:48:51 +00:00
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# define HAVE_GETTIMEOFDAY_VSYSCALL 1
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2012-11-09 17:53:51 +00:00
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2017-03-06 14:13:03 +00:00
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/* Previously AArch64 used the generic version without the libc_hidden_def
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which lead in a non existent __send symbol in libc.so. */
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# undef HAVE_INTERNAL_SEND_SYMBOL
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Linux: Consolidate {RTLD_}SINGLE_THREAD_P definition
Current GLIBC has two ways to implement the single thread optimization
on syscalls to avoid calling the cancellation path: either by using
global variables (__{libc,pthread}_multiple_thread) or by accessing
the TCB field (defined by TLS_MULTIPLE_THREADS_IN_TCB). Both the
variables and the macros to acces its value are defined in the
architecture sysdep-cancel.h header.
This patch consolidates its definition on only one header,
sysdeps/unix/sysv/linux/sysdep-cancel.h, and adds a new define
(SINGLE_THREAD_BY_GLOBAL) which the architecture defines if it prefer
to use the global variables instead of the TCB field. This is an
optimization, so if the architecture does not define it, the TCB
method will be used as default.
Checked on x86_64-linux-gnu and on a build with major touched
ABIs (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabihf,
hppa-linux-gnu, i686-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu,
mips-linux-gnu, mips64-linux-gnu, powerpc-linux-gnu,
powerpc64le-linux-gnu, s390-linux-gnu, s390x-linux-gnu, sh4-linux-gnu,
sparcv9-linux-gnu, sparc64-linux-gnu, tilegx-linux-gnu).
* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Remove file.
* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/nios2/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
(SINGLE_THREAD_BY_GLOBAL): Define.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
Likewise.
* sysdeps/unix/sysv/linux/alpha/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
Likewise.
* sysdeps/unix/sysv/linux/arm/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
Likewise.
* sysdeps/unix/sysv/linux/hppa/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
Likewise.
* sysdeps/unix/sysv/linux/microblaze/sysdep.h
(SINGLE_THREAD_BY_GLOBAL): Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (SINGLE_THREAD_BY_GLOBAL):
Likewise.
2017-08-03 22:27:27 +00:00
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# define SINGLE_THREAD_BY_GLOBAL 1
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2012-11-09 17:53:51 +00:00
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/* Define a macro which expands into the inline wrapper code for a system
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call. */
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# undef INLINE_SYSCALL
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# define INLINE_SYSCALL(name, nr, args...) \
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({ unsigned long _sys_result = INTERNAL_SYSCALL (name, , nr, args); \
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if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result, ), 0))\
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{ \
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__set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result, )); \
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_sys_result = (unsigned long) -1; \
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} \
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(long) _sys_result; })
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# undef INTERNAL_SYSCALL_DECL
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# define INTERNAL_SYSCALL_DECL(err) do { } while (0)
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# undef INTERNAL_SYSCALL_RAW
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# define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \
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2014-05-22 20:57:20 +00:00
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({ long _sys_result; \
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2012-11-09 17:53:51 +00:00
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{ \
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LOAD_ARGS_##nr (args) \
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register long _x8 asm ("x8") = (name); \
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asm volatile ("svc 0 // syscall " # name \
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2014-05-22 20:57:20 +00:00
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: "=r" (_x0) : "r"(_x8) ASM_ARGS_##nr : "memory"); \
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2012-11-09 17:53:51 +00:00
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_sys_result = _x0; \
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} \
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2014-05-22 20:57:20 +00:00
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_sys_result; })
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2012-11-09 17:53:51 +00:00
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# undef INTERNAL_SYSCALL
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# define INTERNAL_SYSCALL(name, err, nr, args...) \
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INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args)
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# undef INTERNAL_SYSCALL_AARCH64
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# define INTERNAL_SYSCALL_AARCH64(name, err, nr, args...) \
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INTERNAL_SYSCALL_RAW(__ARM_NR_##name, err, nr, args)
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# undef INTERNAL_SYSCALL_ERROR_P
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# define INTERNAL_SYSCALL_ERROR_P(val, err) \
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((unsigned long) (val) >= (unsigned long) -4095)
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# undef INTERNAL_SYSCALL_ERRNO
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# define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
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# define LOAD_ARGS_0() \
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register long _x0 asm ("x0");
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# define LOAD_ARGS_1(x0) \
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long _x0tmp = (long) (x0); \
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LOAD_ARGS_0 () \
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_x0 = _x0tmp;
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# define LOAD_ARGS_2(x0, x1) \
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long _x1tmp = (long) (x1); \
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LOAD_ARGS_1 (x0) \
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register long _x1 asm ("x1") = _x1tmp;
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# define LOAD_ARGS_3(x0, x1, x2) \
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long _x2tmp = (long) (x2); \
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LOAD_ARGS_2 (x0, x1) \
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register long _x2 asm ("x2") = _x2tmp;
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# define LOAD_ARGS_4(x0, x1, x2, x3) \
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long _x3tmp = (long) (x3); \
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LOAD_ARGS_3 (x0, x1, x2) \
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register long _x3 asm ("x3") = _x3tmp;
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# define LOAD_ARGS_5(x0, x1, x2, x3, x4) \
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long _x4tmp = (long) (x4); \
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LOAD_ARGS_4 (x0, x1, x2, x3) \
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register long _x4 asm ("x4") = _x4tmp;
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# define LOAD_ARGS_6(x0, x1, x2, x3, x4, x5) \
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long _x5tmp = (long) (x5); \
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LOAD_ARGS_5 (x0, x1, x2, x3, x4) \
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register long _x5 asm ("x5") = _x5tmp;
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# define LOAD_ARGS_7(x0, x1, x2, x3, x4, x5, x6)\
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long _x6tmp = (long) (x6); \
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LOAD_ARGS_6 (x0, x1, x2, x3, x4, x5) \
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register long _x6 asm ("x6") = _x6tmp;
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2014-05-22 20:57:20 +00:00
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# define ASM_ARGS_0
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# define ASM_ARGS_1 , "r" (_x0)
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# define ASM_ARGS_2 ASM_ARGS_1, "r" (_x1)
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# define ASM_ARGS_3 ASM_ARGS_2, "r" (_x2)
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# define ASM_ARGS_4 ASM_ARGS_3, "r" (_x3)
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# define ASM_ARGS_5 ASM_ARGS_4, "r" (_x4)
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# define ASM_ARGS_6 ASM_ARGS_5, "r" (_x5)
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2012-11-09 17:53:51 +00:00
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# define ASM_ARGS_7 ASM_ARGS_6, "r" (_x6)
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# undef INTERNAL_SYSCALL_NCS
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# define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
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INTERNAL_SYSCALL_RAW (number, err, nr, args)
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#endif /* __ASSEMBLER__ */
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2014-01-01 17:47:14 +00:00
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/* Pointer mangling is supported for AArch64. */
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2014-11-20 15:39:43 +00:00
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#if (IS_IN (rtld) || \
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2014-11-24 09:33:45 +00:00
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(!defined SHARED && (IS_IN (libc) \
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2014-11-20 08:52:40 +00:00
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|| IS_IN (libpthread))))
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2014-01-01 17:47:14 +00:00
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# ifdef __ASSEMBLER__
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Partial ILP32 support for aarch64.
* sysdeps/aarch64/crti.S: Add include of sysdep.h.
(call_weak_fn): Use PTR_REG to get correct reg name in ILP32.
* sysdeps/aarch64/dl-irel.h: Add include of sysdep.h.
(elf_irela): Use AARCH64_R macro to get correct relocation in ILP32.
* sysdeps/aarch64/dl-machine.h: Add include of sysdep.h.
(elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START,
elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela,
elf_machine_lazy_rel): Add ifdef's for ILP32 support.
* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return,
_dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic,
_dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG
to get correct reg name for ILP32.
* sysdeps/aarch64/dl-trampoline.S (ip01): New Macro.
(RELA_SIZE): New Macro.
(_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG
to support ILP32.
* sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add
cast for ILP32 mode.
* sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode.
* sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto.
* sysdeps/aarch64/memset.S (__memset): Ditto.
* sysdeps/aarch64/strchr.S (strchr): Ditto.
* sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto.
* sysdeps/aarch64/strcmp.S (strcmp): Ditto.
* sysdeps/aarch64/strcpy.S (strcpy): Ditto.
* sysdeps/aarch64/strlen.S (__strlen): Ditto.
* sysdeps/aarch64/strncmp.S (strncmp): Ditto.
* sysdeps/aarch64/strnlen.S (strnlen): Ditto.
* sysdeps/aarch64/strrchr.S (strrchr): Ditto.
* sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto.
* sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto.
* sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto.
* sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32,
change PTR_MANGLE call to use register numbers instead of names.
* sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto.
* sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for
ILP32 mode, change PTR_MANGLE calls to use register numbers.
* sysdeps/aarch64/start.S (_start): Ditto.
* sysdeps/aarch64/nptl/bits/pthreadtypes.h
(__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define.
(__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T,
__SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T,
__SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T,
__SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T,
__SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T):
Make defined values dependent on __ILP32__.
* sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define.
(sem_t): Change __align type.
* sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE,
PTR_SIZE): New Macros.
(LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG.
* sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE):
Set when in ILP32 mode.
(F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode.
* sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID):
Set elf flags for ILP32.
(add_system_dir): Set ILP32 library directories.
* sysdeps/unix/sysv/linux/aarch64/init-first.c
(_libc_vdso_platform_setup): Set minimum kernel version for ILP32.
* sysdeps/unix/sysv/linux/aarch64/ldconfig.h
(SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names.
* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC):
New Macros.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
2016-11-28 17:01:23 +00:00
|
|
|
/* Note, dst, src, guard, and tmp are all register numbers rather than
|
|
|
|
register names so they will work with both ILP32 and LP64. */
|
2014-01-01 17:47:14 +00:00
|
|
|
# define PTR_MANGLE(dst, src, guard, tmp) \
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|
LDST_PCREL (ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard_local)); \
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PTR_MANGLE2 (dst, src, guard)
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|
|
|
/* Use PTR_MANGLE2 for efficiency if guard is already loaded. */
|
|
|
|
# define PTR_MANGLE2(dst, src, guard)\
|
Partial ILP32 support for aarch64.
* sysdeps/aarch64/crti.S: Add include of sysdep.h.
(call_weak_fn): Use PTR_REG to get correct reg name in ILP32.
* sysdeps/aarch64/dl-irel.h: Add include of sysdep.h.
(elf_irela): Use AARCH64_R macro to get correct relocation in ILP32.
* sysdeps/aarch64/dl-machine.h: Add include of sysdep.h.
(elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START,
elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela,
elf_machine_lazy_rel): Add ifdef's for ILP32 support.
* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return,
_dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic,
_dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG
to get correct reg name for ILP32.
* sysdeps/aarch64/dl-trampoline.S (ip01): New Macro.
(RELA_SIZE): New Macro.
(_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG
to support ILP32.
* sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add
cast for ILP32 mode.
* sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode.
* sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto.
* sysdeps/aarch64/memset.S (__memset): Ditto.
* sysdeps/aarch64/strchr.S (strchr): Ditto.
* sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto.
* sysdeps/aarch64/strcmp.S (strcmp): Ditto.
* sysdeps/aarch64/strcpy.S (strcpy): Ditto.
* sysdeps/aarch64/strlen.S (__strlen): Ditto.
* sysdeps/aarch64/strncmp.S (strncmp): Ditto.
* sysdeps/aarch64/strnlen.S (strnlen): Ditto.
* sysdeps/aarch64/strrchr.S (strrchr): Ditto.
* sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto.
* sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto.
* sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto.
* sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32,
change PTR_MANGLE call to use register numbers instead of names.
* sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto.
* sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for
ILP32 mode, change PTR_MANGLE calls to use register numbers.
* sysdeps/aarch64/start.S (_start): Ditto.
* sysdeps/aarch64/nptl/bits/pthreadtypes.h
(__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define.
(__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T,
__SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T,
__SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T,
__SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T,
__SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T):
Make defined values dependent on __ILP32__.
* sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define.
(sem_t): Change __align type.
* sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE,
PTR_SIZE): New Macros.
(LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG.
* sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE):
Set when in ILP32 mode.
(F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode.
* sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID):
Set elf flags for ILP32.
(add_system_dir): Set ILP32 library directories.
* sysdeps/unix/sysv/linux/aarch64/init-first.c
(_libc_vdso_platform_setup): Set minimum kernel version for ILP32.
* sysdeps/unix/sysv/linux/aarch64/ldconfig.h
(SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names.
* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC):
New Macros.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
2016-11-28 17:01:23 +00:00
|
|
|
eor x##dst, x##src, x##guard
|
2014-01-01 17:47:14 +00:00
|
|
|
# define PTR_DEMANGLE(dst, src, guard, tmp)\
|
|
|
|
PTR_MANGLE (dst, src, guard, tmp)
|
|
|
|
# define PTR_DEMANGLE2(dst, src, guard)\
|
|
|
|
PTR_MANGLE2 (dst, src, guard)
|
|
|
|
# else
|
|
|
|
extern uintptr_t __pointer_chk_guard_local attribute_relro attribute_hidden;
|
|
|
|
# define PTR_MANGLE(var) \
|
|
|
|
(var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local)
|
|
|
|
# define PTR_DEMANGLE(var) PTR_MANGLE (var)
|
|
|
|
# endif
|
|
|
|
#else
|
|
|
|
# ifdef __ASSEMBLER__
|
Partial ILP32 support for aarch64.
* sysdeps/aarch64/crti.S: Add include of sysdep.h.
(call_weak_fn): Use PTR_REG to get correct reg name in ILP32.
* sysdeps/aarch64/dl-irel.h: Add include of sysdep.h.
(elf_irela): Use AARCH64_R macro to get correct relocation in ILP32.
* sysdeps/aarch64/dl-machine.h: Add include of sysdep.h.
(elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START,
elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela,
elf_machine_lazy_rel): Add ifdef's for ILP32 support.
* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return,
_dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic,
_dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG
to get correct reg name for ILP32.
* sysdeps/aarch64/dl-trampoline.S (ip01): New Macro.
(RELA_SIZE): New Macro.
(_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG
to support ILP32.
* sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add
cast for ILP32 mode.
* sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode.
* sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto.
* sysdeps/aarch64/memset.S (__memset): Ditto.
* sysdeps/aarch64/strchr.S (strchr): Ditto.
* sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto.
* sysdeps/aarch64/strcmp.S (strcmp): Ditto.
* sysdeps/aarch64/strcpy.S (strcpy): Ditto.
* sysdeps/aarch64/strlen.S (__strlen): Ditto.
* sysdeps/aarch64/strncmp.S (strncmp): Ditto.
* sysdeps/aarch64/strnlen.S (strnlen): Ditto.
* sysdeps/aarch64/strrchr.S (strrchr): Ditto.
* sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto.
* sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto.
* sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto.
* sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32,
change PTR_MANGLE call to use register numbers instead of names.
* sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto.
* sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for
ILP32 mode, change PTR_MANGLE calls to use register numbers.
* sysdeps/aarch64/start.S (_start): Ditto.
* sysdeps/aarch64/nptl/bits/pthreadtypes.h
(__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define.
(__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T,
__SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T,
__SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T,
__SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T,
__SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T):
Make defined values dependent on __ILP32__.
* sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define.
(sem_t): Change __align type.
* sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE,
PTR_SIZE): New Macros.
(LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG.
* sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE):
Set when in ILP32 mode.
(F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode.
* sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID):
Set elf flags for ILP32.
(add_system_dir): Set ILP32 library directories.
* sysdeps/unix/sysv/linux/aarch64/init-first.c
(_libc_vdso_platform_setup): Set minimum kernel version for ILP32.
* sysdeps/unix/sysv/linux/aarch64/ldconfig.h
(SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names.
* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC):
New Macros.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
2016-11-28 17:01:23 +00:00
|
|
|
/* Note, dst, src, guard, and tmp are all register numbers rather than
|
|
|
|
register names so they will work with both ILP32 and LP64. */
|
2014-01-01 17:47:14 +00:00
|
|
|
# define PTR_MANGLE(dst, src, guard, tmp) \
|
|
|
|
LDST_GLOBAL (ldr, guard, tmp, C_SYMBOL_NAME(__pointer_chk_guard)); \
|
|
|
|
PTR_MANGLE2 (dst, src, guard)
|
|
|
|
/* Use PTR_MANGLE2 for efficiency if guard is already loaded. */
|
|
|
|
# define PTR_MANGLE2(dst, src, guard)\
|
Partial ILP32 support for aarch64.
* sysdeps/aarch64/crti.S: Add include of sysdep.h.
(call_weak_fn): Use PTR_REG to get correct reg name in ILP32.
* sysdeps/aarch64/dl-irel.h: Add include of sysdep.h.
(elf_irela): Use AARCH64_R macro to get correct relocation in ILP32.
* sysdeps/aarch64/dl-machine.h: Add include of sysdep.h.
(elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START,
elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela,
elf_machine_lazy_rel): Add ifdef's for ILP32 support.
* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return,
_dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic,
_dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG
to get correct reg name for ILP32.
* sysdeps/aarch64/dl-trampoline.S (ip01): New Macro.
(RELA_SIZE): New Macro.
(_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG
to support ILP32.
* sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add
cast for ILP32 mode.
* sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode.
* sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto.
* sysdeps/aarch64/memset.S (__memset): Ditto.
* sysdeps/aarch64/strchr.S (strchr): Ditto.
* sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto.
* sysdeps/aarch64/strcmp.S (strcmp): Ditto.
* sysdeps/aarch64/strcpy.S (strcpy): Ditto.
* sysdeps/aarch64/strlen.S (__strlen): Ditto.
* sysdeps/aarch64/strncmp.S (strncmp): Ditto.
* sysdeps/aarch64/strnlen.S (strnlen): Ditto.
* sysdeps/aarch64/strrchr.S (strrchr): Ditto.
* sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto.
* sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto.
* sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto.
* sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32,
change PTR_MANGLE call to use register numbers instead of names.
* sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto.
* sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for
ILP32 mode, change PTR_MANGLE calls to use register numbers.
* sysdeps/aarch64/start.S (_start): Ditto.
* sysdeps/aarch64/nptl/bits/pthreadtypes.h
(__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define.
(__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T,
__SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T,
__SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T,
__SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T,
__SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T):
Make defined values dependent on __ILP32__.
* sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define.
(sem_t): Change __align type.
* sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE,
PTR_SIZE): New Macros.
(LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG.
* sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE):
Set when in ILP32 mode.
(F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode.
* sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID):
Set elf flags for ILP32.
(add_system_dir): Set ILP32 library directories.
* sysdeps/unix/sysv/linux/aarch64/init-first.c
(_libc_vdso_platform_setup): Set minimum kernel version for ILP32.
* sysdeps/unix/sysv/linux/aarch64/ldconfig.h
(SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names.
* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC):
New Macros.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
2016-11-28 17:01:23 +00:00
|
|
|
eor x##dst, x##src, x##guard
|
2014-01-01 17:47:14 +00:00
|
|
|
# define PTR_DEMANGLE(dst, src, guard, tmp)\
|
|
|
|
PTR_MANGLE (dst, src, guard, tmp)
|
|
|
|
# define PTR_DEMANGLE2(dst, src, guard)\
|
|
|
|
PTR_MANGLE2 (dst, src, guard)
|
|
|
|
# else
|
|
|
|
extern uintptr_t __pointer_chk_guard attribute_relro;
|
|
|
|
# define PTR_MANGLE(var) \
|
|
|
|
(var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard)
|
|
|
|
# define PTR_DEMANGLE(var) PTR_MANGLE (var)
|
|
|
|
# endif
|
|
|
|
#endif
|
2012-11-09 17:53:51 +00:00
|
|
|
|
|
|
|
#endif /* linux/aarch64/sysdep.h */
|