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Add x32 getcpu and sched_getcpu

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H.J. Lu 2012-05-15 10:13:55 -07:00
parent 10f74fbcde
commit 085f715e51
5 changed files with 91 additions and 0 deletions
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ChangeLog
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2012-05-15 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/unix/sysv/linux/x86_64/x32/Makefile: New file.
* sysdeps/unix/sysv/linux/x86_64/x32/getcpu.c: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/sched_getcpu-static.c:
Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/sched_getcpu.S: Likewise.
2012-05-15 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/x86_64/stackinfo.h (stackinfo_get_sp): Use RSP_LP.

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sysdeps/unix/sysv/linux/x86_64/x32/Makefile Normal file
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ifeq ($(subdir),posix)
sysdep_routines += getcpu sched_getcpu-static
endif

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sysdeps/unix/sysv/linux/x86_64/x32/getcpu.c Normal file
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/* Copyright (C) 2012 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, see
<http://www.gnu.org/licenses/>. */
#ifdef SHARED
# include <dl-vdso.h>
void *getcpu_ifunc (void) __asm__ ("__getcpu");
void *
getcpu_ifunc (void)
{
PREPARE_VERSION (linux26, "LINUX_2.6", 61765110);
return _dl_vdso_vsym ("__vdso_getcpu", &linux26);
}
__asm (".type __getcpu, %gnu_indirect_function");
#endif

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sysdeps/unix/sysv/linux/x86_64/x32/sched_getcpu-static.c Normal file
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#ifndef SHARED
#include "../../sched_getcpu.c"
#endif

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sysdeps/unix/sysv/linux/x86_64/x32/sched_getcpu.S Normal file
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/* Copyright (C) 2012 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, see
<http://www.gnu.org/licenses/>. */
#ifdef SHARED
#include <sysdep.h>
#include <tls.h>
#define _ERRNO_H 1
#include <bits/errno.h>
ENTRY (sched_getcpu)
/* Align stack and create local variable for result. */
sub $0x8, %esp
cfi_adjust_cfa_offset(8)
mov %esp, %edi
xor %esi, %esi
mov $VGETCPU_CACHE_OFFSET, %edx
add %fs:0, %edx
call __getcpu
cmp $-4095, %eax
jae SYSCALL_ERROR_LABEL
mov (%rsp), %eax
L(pseudo_end):
add $0x8, %esp
cfi_adjust_cfa_offset(-8)
ret
PSEUDO_END(sched_getcpu)
#endif