add personality() system call.
Change-Id: Ie899def8ea1d705930ed83adae1343c1353e7c57
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index 46e7b1f..d72d129 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -251,6 +251,7 @@
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
diff --git a/libc/arch-arm/syscalls.mk b/libc/arch-arm/syscalls.mk
index e6c84f6..861cabf 100644
--- a/libc/arch-arm/syscalls.mk
+++ b/libc/arch-arm/syscalls.mk
@@ -169,6 +169,7 @@
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
diff --git a/libc/arch-arm/syscalls/personality.S b/libc/arch-arm/syscalls/personality.S
new file mode 100644
index 0000000..17ac686
--- /dev/null
+++ b/libc/arch-arm/syscalls/personality.S
@@ -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)
diff --git a/libc/arch-sh/syscalls.mk b/libc/arch-sh/syscalls.mk
index 1d87600..6666431 100644
--- a/libc/arch-sh/syscalls.mk
+++ b/libc/arch-sh/syscalls.mk
@@ -158,6 +158,7 @@
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
diff --git a/libc/arch-sh/syscalls/personality.S b/libc/arch-sh/syscalls/personality.S
new file mode 100644
index 0000000..efc2ea3
--- /dev/null
+++ b/libc/arch-sh/syscalls/personality.S
@@ -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
diff --git a/libc/arch-x86/syscalls.mk b/libc/arch-x86/syscalls.mk
index 3b85025..ba85907 100644
--- a/libc/arch-x86/syscalls.mk
+++ b/libc/arch-x86/syscalls.mk
@@ -172,6 +172,7 @@
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
diff --git a/libc/arch-x86/syscalls/personality.S b/libc/arch-x86/syscalls/personality.S
new file mode 100644
index 0000000..af4f912
--- /dev/null
+++ b/libc/arch-x86/syscalls/personality.S
@@ -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
diff --git a/libc/include/sys/linux-syscalls.h b/libc/include/sys/linux-syscalls.h
index 7b74a4b..e33e916 100644
--- a/libc/include/sys/linux-syscalls.h
+++ b/libc/include/sys/linux-syscalls.h
@@ -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)
diff --git a/libc/include/sys/linux-unistd.h b/libc/include/sys/linux-unistd.h
index ae9077f..da57f55 100644
--- a/libc/include/sys/linux-unistd.h
+++ b/libc/include/sys/linux-unistd.h
@@ -199,6 +199,7 @@
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);
diff --git a/libc/include/sys/personality.h b/libc/include/sys/personality.h
new file mode 100644
index 0000000..2199fa7
--- /dev/null
+++ b/libc/include/sys/personality.h
@@ -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_ */
