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Add extended attribute (xattr) system call wrappers to bionic.

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The xattr system calls are required for the SE Android userspace in
order to get and set file security contexts.  In particular, libselinux
requires these calls.

Change-Id: I78f5eb3d8f3384aed0a5e7c6a6f001781d982017
This commit is contained in:
Stephen Smalley
2012-01-13 07:45:16 -05:00
parent e30e909363
commit 5eb686d105
43 changed files with 1062 additions and 0 deletions
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12
libc/arch-arm/syscalls.mk
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@@ -85,6 +85,10 @@ syscall_src += arch-arm/syscalls/mkdirat.S
syscall_src += arch-arm/syscalls/fchownat.S
syscall_src += arch-arm/syscalls/fchmodat.S
syscall_src += arch-arm/syscalls/renameat.S
syscall_src += arch-arm/syscalls/fsetxattr.S
syscall_src += arch-arm/syscalls/fgetxattr.S
syscall_src += arch-arm/syscalls/flistxattr.S
syscall_src += arch-arm/syscalls/fremovexattr.S
syscall_src += arch-arm/syscalls/link.S
syscall_src += arch-arm/syscalls/unlink.S
syscall_src += arch-arm/syscalls/unlinkat.S
@@ -107,6 +111,14 @@ syscall_src += arch-arm/syscalls/access.S
syscall_src += arch-arm/syscalls/symlink.S
syscall_src += arch-arm/syscalls/fchdir.S
syscall_src += arch-arm/syscalls/truncate.S
syscall_src += arch-arm/syscalls/setxattr.S
syscall_src += arch-arm/syscalls/lsetxattr.S
syscall_src += arch-arm/syscalls/getxattr.S
syscall_src += arch-arm/syscalls/lgetxattr.S
syscall_src += arch-arm/syscalls/listxattr.S
syscall_src += arch-arm/syscalls/llistxattr.S
syscall_src += arch-arm/syscalls/removexattr.S
syscall_src += arch-arm/syscalls/lremovexattr.S
syscall_src += arch-arm/syscalls/__statfs64.S
syscall_src += arch-arm/syscalls/pause.S
syscall_src += arch-arm/syscalls/gettimeofday.S

14
libc/arch-arm/syscalls/fgetxattr.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(fgetxattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_fgetxattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(fgetxattr)

14
libc/arch-arm/syscalls/flistxattr.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(flistxattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_flistxattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(flistxattr)

14
libc/arch-arm/syscalls/fremovexattr.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(fremovexattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_fremovexattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(fremovexattr)

16
libc/arch-arm/syscalls/fsetxattr.S Normal file
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@@ -0,0 +1,16 @@
/* autogenerated by gensyscalls.py */
#include <machine/asm.h>
#include <sys/linux-syscalls.h>
ENTRY(fsetxattr)
mov ip, sp
.save {r4, r5, r6, r7}
stmfd sp!, {r4, r5, r6, r7}
ldmfd ip, {r4, r5, r6}
ldr r7, =__NR_fsetxattr
swi #0
ldmfd sp!, {r4, r5, r6, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(fsetxattr)

14
libc/arch-arm/syscalls/getxattr.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(getxattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_getxattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(getxattr)

14
libc/arch-arm/syscalls/lgetxattr.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(lgetxattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_lgetxattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(lgetxattr)

14
libc/arch-arm/syscalls/listxattr.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(listxattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_listxattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(listxattr)

14
libc/arch-arm/syscalls/llistxattr.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(llistxattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_llistxattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(llistxattr)

14
libc/arch-arm/syscalls/lremovexattr.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(lremovexattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_lremovexattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(lremovexattr)

16
libc/arch-arm/syscalls/lsetxattr.S Normal file
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@@ -0,0 +1,16 @@
/* autogenerated by gensyscalls.py */
#include <machine/asm.h>
#include <sys/linux-syscalls.h>
ENTRY(lsetxattr)
mov ip, sp
.save {r4, r5, r6, r7}
stmfd sp!, {r4, r5, r6, r7}
ldmfd ip, {r4, r5, r6}
ldr r7, =__NR_lsetxattr
swi #0
ldmfd sp!, {r4, r5, r6, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(lsetxattr)

14
libc/arch-arm/syscalls/removexattr.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(removexattr)
.save {r4, r7}
stmfd sp!, {r4, r7}
ldr r7, =__NR_removexattr
swi #0
ldmfd sp!, {r4, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(removexattr)

16
libc/arch-arm/syscalls/setxattr.S Normal file
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@@ -0,0 +1,16 @@
/* autogenerated by gensyscalls.py */
#include <machine/asm.h>
#include <sys/linux-syscalls.h>
ENTRY(setxattr)
mov ip, sp
.save {r4, r5, r6, r7}
stmfd sp!, {r4, r5, r6, r7}
ldmfd ip, {r4, r5, r6}
ldr r7, =__NR_setxattr
swi #0
ldmfd sp!, {r4, r5, r6, r7}
movs r0, r0
bxpl lr
b __set_syscall_errno
END(setxattr)