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Merge "Add process_vm_readv and process_vm_writev."

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This commit is contained in:
Elliott Hughes 2015-06-11 01:31:15 +00:00 committed by Gerrit Code Review
commit c910de9d5e
16 changed files with 322 additions and 2 deletions
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3
libc/SYSCALLS.TXT
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@ -308,6 +308,9 @@ int inotify_rm_watch(int, unsigned int) all
int __pselect6:pselect6(int, fd_set*, fd_set*, fd_set*, timespec*, void*) all
int __ppoll:ppoll(pollfd*, unsigned int, timespec*, const sigset_t*, size_t) all
ssize_t process_vm_readv(pid_t, const struct iovec*, unsigned long, const struct iovec*, unsigned long, unsigned long) all
ssize_t process_vm_writev(pid_t, const struct iovec*, unsigned long, const struct iovec*, unsigned long, unsigned long) all
int __set_tid_address:set_tid_address(int*) all
int setfsgid(gid_t) all

22
libc/arch-arm/syscalls/process_vm_readv.S Normal file
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@ -0,0 +1,22 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_readv)
mov ip, sp
stmfd sp!, {r4, r5, r6, r7}
.cfi_def_cfa_offset 16
.cfi_rel_offset r4, 0
.cfi_rel_offset r5, 4
.cfi_rel_offset r6, 8
.cfi_rel_offset r7, 12
ldmfd ip, {r4, r5, r6}
ldr r7, =__NR_process_vm_readv
swi #0
ldmfd sp!, {r4, r5, r6, r7}
.cfi_def_cfa_offset 0
cmn r0, #(MAX_ERRNO + 1)
bxls lr
neg r0, r0
b __set_errno_internal
END(process_vm_readv)

22
libc/arch-arm/syscalls/process_vm_writev.S Normal file
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@ -0,0 +1,22 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_writev)
mov ip, sp
stmfd sp!, {r4, r5, r6, r7}
.cfi_def_cfa_offset 16
.cfi_rel_offset r4, 0
.cfi_rel_offset r5, 4
.cfi_rel_offset r6, 8
.cfi_rel_offset r7, 12
ldmfd ip, {r4, r5, r6}
ldr r7, =__NR_process_vm_writev
swi #0
ldmfd sp!, {r4, r5, r6, r7}
.cfi_def_cfa_offset 0
cmn r0, #(MAX_ERRNO + 1)
bxls lr
neg r0, r0
b __set_errno_internal
END(process_vm_writev)

14
libc/arch-arm64/syscalls/process_vm_readv.S Normal file
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@ -0,0 +1,14 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_readv)
mov x8, __NR_process_vm_readv
svc #0
cmn x0, #(MAX_ERRNO + 1)
cneg x0, x0, hi
b.hi __set_errno_internal
ret
END(process_vm_readv)

14
libc/arch-arm64/syscalls/process_vm_writev.S Normal file
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@ -0,0 +1,14 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_writev)
mov x8, __NR_process_vm_writev
svc #0
cmn x0, #(MAX_ERRNO + 1)
cneg x0, x0, hi
b.hi __set_errno_internal
ret
END(process_vm_writev)

19
libc/arch-mips/syscalls/process_vm_readv.S Normal file
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@ -0,0 +1,19 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_readv)
.set noreorder
.cpload t9
li v0, __NR_process_vm_readv
syscall
bnez a3, 1f
move a0, v0
j ra
nop
1:
la t9,__set_errno_internal
j t9
nop
.set reorder
END(process_vm_readv)

19
libc/arch-mips/syscalls/process_vm_writev.S Normal file
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@ -0,0 +1,19 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_writev)
.set noreorder
.cpload t9
li v0, __NR_process_vm_writev
syscall
bnez a3, 1f
move a0, v0
j ra
nop
1:
la t9,__set_errno_internal
j t9
nop
.set reorder
END(process_vm_writev)

25
libc/arch-mips64/syscalls/process_vm_readv.S Normal file
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@ -0,0 +1,25 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_readv)
.set push
.set noreorder
li v0, __NR_process_vm_readv
syscall
bnez a3, 1f
move a0, v0
j ra
nop
1:
move t0, ra
bal 2f
nop
2:
.cpsetup ra, t1, 2b
LA t9,__set_errno_internal
.cpreturn
j t9
move ra, t0
.set pop
END(process_vm_readv)

25
libc/arch-mips64/syscalls/process_vm_writev.S Normal file
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@ -0,0 +1,25 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_writev)
.set push
.set noreorder
li v0, __NR_process_vm_writev
syscall
bnez a3, 1f
move a0, v0
j ra
nop
1:
move t0, ra
bal 2f
nop
2:
.cpsetup ra, t1, 2b
LA t9,__set_errno_internal
.cpreturn
j t9
move ra, t0
.set pop
END(process_vm_writev)

46
libc/arch-x86/syscalls/process_vm_readv.S Normal file
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@ -0,0 +1,46 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_readv)
pushl %ebx
.cfi_def_cfa_offset 8
.cfi_rel_offset ebx, 0
pushl %ecx
.cfi_adjust_cfa_offset 4
.cfi_rel_offset ecx, 0
pushl %edx
.cfi_adjust_cfa_offset 4
.cfi_rel_offset edx, 0
pushl %esi
.cfi_adjust_cfa_offset 4
.cfi_rel_offset esi, 0
pushl %edi
.cfi_adjust_cfa_offset 4
.cfi_rel_offset edi, 0
pushl %ebp
.cfi_adjust_cfa_offset 4
.cfi_rel_offset ebp, 0
mov 28(%esp), %ebx
mov 32(%esp), %ecx
mov 36(%esp), %edx
mov 40(%esp), %esi
mov 44(%esp), %edi
mov 48(%esp), %ebp
movl $__NR_process_vm_readv, %eax
int $0x80
cmpl $-MAX_ERRNO, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno_internal
addl $4, %esp
1:
popl %ebp
popl %edi
popl %esi
popl %edx
popl %ecx
popl %ebx
ret
END(process_vm_readv)

46
libc/arch-x86/syscalls/process_vm_writev.S Normal file
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@ -0,0 +1,46 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_writev)
pushl %ebx
.cfi_def_cfa_offset 8
.cfi_rel_offset ebx, 0
pushl %ecx
.cfi_adjust_cfa_offset 4
.cfi_rel_offset ecx, 0
pushl %edx
.cfi_adjust_cfa_offset 4
.cfi_rel_offset edx, 0
pushl %esi
.cfi_adjust_cfa_offset 4
.cfi_rel_offset esi, 0
pushl %edi
.cfi_adjust_cfa_offset 4
.cfi_rel_offset edi, 0
pushl %ebp
.cfi_adjust_cfa_offset 4
.cfi_rel_offset ebp, 0
mov 28(%esp), %ebx
mov 32(%esp), %ecx
mov 36(%esp), %edx
mov 40(%esp), %esi
mov 44(%esp), %edi
mov 48(%esp), %ebp
movl $__NR_process_vm_writev, %eax
int $0x80
cmpl $-MAX_ERRNO, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno_internal
addl $4, %esp
1:
popl %ebp
popl %edi
popl %esi
popl %edx
popl %ecx
popl %ebx
ret
END(process_vm_writev)

16
libc/arch-x86_64/syscalls/process_vm_readv.S Normal file
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@ -0,0 +1,16 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_readv)
movq %rcx, %r10
movl $__NR_process_vm_readv, %eax
syscall
cmpq $-MAX_ERRNO, %rax
jb 1f
negl %eax
movl %eax, %edi
call __set_errno_internal
1:
ret
END(process_vm_readv)

16
libc/arch-x86_64/syscalls/process_vm_writev.S Normal file
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@ -0,0 +1,16 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(process_vm_writev)
movq %rcx, %r10
movl $__NR_process_vm_writev, %eax
syscall
cmpq $-MAX_ERRNO, %rax
jb 1f
negl %eax
movl %eax, %edi
call __set_errno_internal
1:
ret
END(process_vm_writev)

9
libc/include/sys/uio.h
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@ -34,8 +34,13 @@
__BEGIN_DECLS
int readv(int, const struct iovec *, int);
int writev(int, const struct iovec *, int);
int readv(int, const struct iovec*, int);
int writev(int, const struct iovec*, int);
#if defined(__USE_GNU)
ssize_t process_vm_readv(pid_t, const struct iovec*, unsigned long, const struct iovec*, unsigned long, unsigned long);
ssize_t process_vm_writev(pid_t, const struct iovec*, unsigned long, const struct iovec*, unsigned long, unsigned long);
#endif
__END_DECLS

1
tests/Android.mk
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@ -106,6 +106,7 @@ libBionicStandardTests_src_files := \
sys_sysinfo_test.cpp \
sys_time_test.cpp \
sys_types_test.cpp \
sys_uio_test.cpp \
sys_vfs_test.cpp \
sys_xattr_test.cpp \
system_properties_test.cpp \

27
tests/sys_uio_test.cpp Normal file
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@ -0,0 +1,27 @@
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <sys/uio.h>
TEST(sys_uio, process_vm_readv_ESRCH) {
ASSERT_EQ(0, process_vm_readv(0, nullptr, 0, nullptr, 0, 0));
}
TEST(sys_uio, process_vm_writev_ESRCH) {
ASSERT_EQ(0, process_vm_writev(0, nullptr, 0, nullptr, 0, 0));
}