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support _POSIX_REALTIME_SIGNALS

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Bug: 18489947
Change-Id: I2e834d68bc10ca5fc7ebde047b517a3074179475
This commit is contained in:
Yabin Cui
2014-12-01 17:41:04 -08:00
parent f64c43ba6c
commit 634816055f
17 changed files with 403 additions and 24 deletions
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3
libc/Android.mk
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@@ -201,8 +201,11 @@ libc_bionic_src_files := \
bionic/signalfd.cpp \
bionic/sigpending.cpp \
bionic/sigprocmask.cpp \
bionic/sigqueue.cpp \
bionic/sigsuspend.cpp \
bionic/sigtimedwait.cpp \
bionic/sigwait.cpp \
bionic/sigwaitinfo.cpp \
bionic/socket.cpp \
bionic/stat.cpp \
bionic/statvfs.cpp \

1
libc/SYSCALLS.TXT
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@@ -223,6 +223,7 @@ int __rt_sigpending:rt_sigpending(sigset_t*, size_t) all
int __rt_sigprocmask:rt_sigprocmask(int, const sigset_t*, sigset_t*, size_t) all
int __rt_sigsuspend:rt_sigsuspend(const sigset_t*, size_t) all
int __rt_sigtimedwait:rt_sigtimedwait(const sigset_t*, struct siginfo_t*, struct timespec_t*, size_t) all
int __rt_sigqueueinfo:rt_sigqueueinfo(pid_t, int, siginfo_t*) all
int __signalfd4:signalfd4(int, const sigset_t*, size_t, int) all
# sockets

14
libc/arch-arm/syscalls/__rt_sigqueueinfo.S Normal file
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@@ -0,0 +1,14 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(__rt_sigqueueinfo)
mov ip, r7
ldr r7, =__NR_rt_sigqueueinfo
swi #0
mov r7, ip
cmn r0, #(MAX_ERRNO + 1)
bxls lr
neg r0, r0
b __set_errno_internal
END(__rt_sigqueueinfo)

15
libc/arch-arm64/syscalls/__rt_sigqueueinfo.S Normal file
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@@ -0,0 +1,15 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(__rt_sigqueueinfo)
mov x8, __NR_rt_sigqueueinfo
svc #0
cmn x0, #(MAX_ERRNO + 1)
cneg x0, x0, hi
b.hi __set_errno_internal
ret
END(__rt_sigqueueinfo)
.hidden __rt_sigqueueinfo

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

26
libc/arch-mips64/syscalls/__rt_sigqueueinfo.S Normal file
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@@ -0,0 +1,26 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(__rt_sigqueueinfo)
.set push
.set noreorder
li v0, __NR_rt_sigqueueinfo
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(__rt_sigqueueinfo)
.hidden __rt_sigqueueinfo

31
libc/arch-x86/syscalls/__rt_sigqueueinfo.S Normal file
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@@ -0,0 +1,31 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <private/bionic_asm.h>
ENTRY(__rt_sigqueueinfo)
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
mov 16(%esp), %ebx
mov 20(%esp), %ecx
mov 24(%esp), %edx
movl $__NR_rt_sigqueueinfo, %eax
int $0x80
cmpl $-MAX_ERRNO, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno_internal
addl $4, %esp
1:
popl %edx
popl %ecx
popl %ebx
ret
END(__rt_sigqueueinfo)

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

46
libc/bionic/sigqueue.cpp Normal file
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@@ -0,0 +1,46 @@
/*
* Copyright (C) 2014 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.
*/
#include <signal.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
extern "C" int __rt_sigqueueinfo(pid_t, int, siginfo_t*);
int sigqueue(pid_t pid, int signo, const sigval value) {
siginfo_t info;
memset(&info, 0, sizeof(siginfo_t));
info.si_signo = signo;
info.si_code = SI_QUEUE;
info.si_pid = getpid();
info.si_uid = getuid();
info.si_value = value;
return __rt_sigqueueinfo(pid, signo, &info);
}

38
libc/bionic/sigtimedwait.cpp Normal file
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@@ -0,0 +1,38 @@
/*
* Copyright (C) 2014 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.
*/
#include <signal.h>
#include "private/kernel_sigset_t.h"
extern "C" int __rt_sigtimedwait(const sigset_t*, siginfo_t*, const timespec*, size_t);
int sigtimedwait(const sigset_t* set, siginfo_t* info, const timespec* timeout) {
kernel_sigset_t sigset(set);
return __rt_sigtimedwait(sigset.get(), info, timeout, sizeof(sigset));
}

33
libc/bionic/sigwaitinfo.cpp Normal file
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@@ -0,0 +1,33 @@
/*
* Copyright (C) 2014 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.
*/
#include <signal.h>
int sigwaitinfo(const sigset_t* set, siginfo_t* info) {
return sigtimedwait(set, info, NULL);
}

2
libc/include/machine/posix_limits.h
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@@ -69,7 +69,7 @@
#define _POSIX_PRIORITIZED_IO -1 /* not implemented */
#define _POSIX_RAW_SOCKETS 200809L
#define _POSIX_READER_WRITER_LOCKS 200809L
#define _POSIX_REALTIME_SIGNALS -1 /* for now, this is not supported */
#define _POSIX_REALTIME_SIGNALS 200809L
#define _POSIX_REGEXP 1
#define _POSIX_RE_DUP_MAX 255
#define _POSIX_SAVED_IDS 1 /* saved user ids is a Linux feature */

5
libc/include/signal.h
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@@ -32,6 +32,7 @@
#include <asm/sigcontext.h>
#include <errno.h>
#include <limits.h>
#include <linux/time.h>
#include <machine/pthread_types.h>
#include <string.h>
#include <sys/cdefs.h>
@@ -133,6 +134,10 @@ extern void psignal(int, const char*);
extern int pthread_kill(pthread_t, int);
extern int pthread_sigmask(int, const sigset_t*, sigset_t*);
extern int sigqueue(pid_t, int, const union sigval);
extern int sigtimedwait(const sigset_t*, siginfo_t*, const struct timespec*);
extern int sigwaitinfo(const sigset_t*, siginfo_t*);
__END_DECLS
#endif /* _SIGNAL_H_ */