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add personality() system call.

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Change-Id: Ie899def8ea1d705930ed83adae1343c1353e7c57
This commit is contained in:
Nick Kralevich 2012-01-13 14:03:01 -08:00
parent ecd0e95a02
commit f44de270bb
10 changed files with 161 additions and 0 deletions
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1
libc/SYSCALLS.TXT
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@ -251,6 +251,7 @@ int init_module(void *, unsigned long, const char *) 128
int delete_module(const char*, unsigned int) 129
int klogctl:syslog(int, char *, int) 103
int sysinfo(struct sysinfo *) 116
int personality(unsigned long) 136
# futex
int futex(void *, int, int, void *, void *, int) 240

1
libc/arch-arm/syscalls.mk
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@ -169,6 +169,7 @@ syscall_src += arch-arm/syscalls/init_module.S
syscall_src += arch-arm/syscalls/delete_module.S
syscall_src += arch-arm/syscalls/klogctl.S
syscall_src += arch-arm/syscalls/sysinfo.S
syscall_src += arch-arm/syscalls/personality.S
syscall_src += arch-arm/syscalls/futex.S
syscall_src += arch-arm/syscalls/epoll_create.S
syscall_src += arch-arm/syscalls/epoll_ctl.S

14
libc/arch-arm/syscalls/personality.S Normal file
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@ -0,0 +1,14 @@
/* autogenerated by gensyscalls.py */
#include <machine/asm.h>
#include <sys/linux-syscalls.h>
ENTRY(personality)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_personality
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(personality)

1
libc/arch-sh/syscalls.mk
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@ -158,6 +158,7 @@ syscall_src += arch-sh/syscalls/init_module.S
syscall_src += arch-sh/syscalls/delete_module.S
syscall_src += arch-sh/syscalls/klogctl.S
syscall_src += arch-sh/syscalls/sysinfo.S
syscall_src += arch-sh/syscalls/personality.S
syscall_src += arch-sh/syscalls/futex.S
syscall_src += arch-sh/syscalls/epoll_create.S
syscall_src += arch-sh/syscalls/epoll_ctl.S

32
libc/arch-sh/syscalls/personality.S Normal file
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@ -0,0 +1,32 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type personality, @function
.globl personality
.align 4
personality:
/* invoke trap */
mov.l 0f, r3 /* trap num */
trapa #(1 + 0x10)
/* check return value */
cmp/pz r0
bt __NR_personality_end
/* keep error number */
sts.l pr, @-r15
mov.l 1f, r1
jsr @r1
mov r0, r4
lds.l @r15+, pr
__NR_personality_end:
rts
nop
.align 2
0: .long __NR_personality
1: .long __set_syscall_errno

1
libc/arch-x86/syscalls.mk
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@ -172,6 +172,7 @@ syscall_src += arch-x86/syscalls/init_module.S
syscall_src += arch-x86/syscalls/delete_module.S
syscall_src += arch-x86/syscalls/klogctl.S
syscall_src += arch-x86/syscalls/sysinfo.S
syscall_src += arch-x86/syscalls/personality.S
syscall_src += arch-x86/syscalls/futex.S
syscall_src += arch-x86/syscalls/epoll_create.S
syscall_src += arch-x86/syscalls/epoll_ctl.S

23
libc/arch-x86/syscalls/personality.S Normal file
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@ -0,0 +1,23 @@
/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type personality, @function
.globl personality
.align 4
personality:
pushl %ebx
mov 8(%esp), %ebx
movl $__NR_personality, %eax
int $0x80
cmpl $-129, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno
addl $4, %esp
orl $-1, %eax
1:
popl %ebx
ret

1
libc/include/sys/linux-syscalls.h
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@ -132,6 +132,7 @@
#define __NR_delete_module (__NR_SYSCALL_BASE + 129)
#define __NR_syslog (__NR_SYSCALL_BASE + 103)
#define __NR_sysinfo (__NR_SYSCALL_BASE + 116)
#define __NR_personality (__NR_SYSCALL_BASE + 136)
#define __NR_futex (__NR_SYSCALL_BASE + 240)
#define __NR_poll (__NR_SYSCALL_BASE + 168)

1
libc/include/sys/linux-unistd.h
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@ -199,6 +199,7 @@ int init_module (void *, unsigned long, const char *);
int delete_module (const char*, unsigned int);
int klogctl (int, char *, int);
int sysinfo (struct sysinfo *);
int personality (unsigned long);
int futex (void *, int, int, void *, void *, int);
int epoll_create (int size);
int epoll_ctl (int epfd, int op, int fd, struct epoll_event *event);

86
libc/include/sys/personality.h Normal file
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@ -0,0 +1,86 @@
/*
* Copyright (C) 2012 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SYS_PERSONALITY_H_
#define _SYS_PERSONALITY_H_
__BEGIN_DECLS
/* constants taken from linux-3.0.4/include/linux/personality.h */
enum {
UNAME26 = 0x0020000,
ADDR_NO_RANDOMIZE = 0x0040000,
FDPIC_FUNCPTRS = 0x0080000,
MMAP_PAGE_ZERO = 0x0100000,
ADDR_COMPAT_LAYOUT = 0x0200000,
READ_IMPLIES_EXEC = 0x0400000,
ADDR_LIMIT_32BIT = 0x0800000,
SHORT_INODE = 0x1000000,
WHOLE_SECONDS = 0x2000000,
STICKY_TIMEOUTS = 0x4000000,
ADDR_LIMIT_3GB = 0x8000000,
};
#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \
ADDR_NO_RANDOMIZE | \
ADDR_COMPAT_LAYOUT | \
MMAP_PAGE_ZERO)
enum {
PER_LINUX = 0x0000,
PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS |
WHOLE_SECONDS | SHORT_INODE,
PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
PER_BSD = 0x0006,
PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
PER_LINUX32 = 0x0008,
PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,
PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,
PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,
PER_RISCOS = 0x000c,
PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
PER_OSF4 = 0x000f,
PER_HPUX = 0x0010,
PER_MASK = 0x00ff,
};
extern int personality (unsigned long persona);
__END_DECLS
#endif /* _SYS_PERSONALITY_H_ */