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Merge "Add arch-x86_64/bionic."

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Elliott Hughes 2013-10-04 22:02:06 +00:00 committed by Gerrit Code Review
commit 8fb977ba11
18 changed files with 866 additions and 11 deletions
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2
libc/SYSCALLS.TXT
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@ -94,7 +94,7 @@ int chroot(const char*) all
# IMPORTANT: Even though <sys/prctl.h> declares prctl(int, ...), the syscall stub must take 6 arguments
# to match the kernel implementation.
int prctl(int option, unsigned int arg2, unsigned int arg3, unsigned int arg4, unsigned int arg5) all
long arch_prctl(int, unsigned long) x86_64
long __arch_prctl:arch_prctl(int, unsigned long) x86_64
int capget(cap_user_header_t header, cap_user_data_t data) all
int capset(cap_user_header_t header, const cap_user_data_t data) all
int sigaltstack(const stack_t*, stack_t*) all

34
libc/arch-x86_64/bionic/__get_sp.S Normal file
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@ -0,0 +1,34 @@
/*
* Copyright (C) 2013 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 <machine/asm.h>
ENTRY(__get_sp)
mov %rsp, %rax
ret
END(__get_sp)

33
libc/arch-x86_64/bionic/__get_tls.c Normal file
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@ -0,0 +1,33 @@
/*
* Copyright (C) 2013 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.
*/
void* __get_tls(void) {
void* tls;
asm ("mov %%fs:0, %0" : "=r"(tls));
return tls;
}

36
libc/arch-x86_64/bionic/__rt_sigreturn.S Normal file
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@ -0,0 +1,36 @@
/*
* Copyright (C) 2013 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 <asm/unistd.h>
#include <machine/asm.h>
ENTRY(__rt_sigreturn)
.hidden _C_LABEL(__rt_sigreturn) // TODO: add an ENTRY_PRIVATE macro for x86_64.
movl $__NR_rt_sigreturn, %eax
syscall
END(__rt_sigreturn)

38
libc/arch-x86_64/bionic/__set_tls.c Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (C) 2013 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 <asm/prctl.h>
#include <stdint.h>
extern int __arch_prctl(int, unsigned long);
int __set_tls(void* ptr) {
// We also need to write the location of the tls to ptr[0].
*(void**) ptr = ptr;
return __arch_prctl(ARCH_SET_FS, (uintptr_t) ptr);
}

56
libc/arch-x86_64/bionic/_exit_with_stack_teardown.S Normal file
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@ -0,0 +1,56 @@
/*
* Copyright (C) 2013 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 <asm/unistd.h>
#include <machine/asm.h>
/*
* void _exit_with_stack_teardown(void *stackBase, int stackSize, int *retCode)
*/
ENTRY(_exit_with_stack_teardown)
/* we can trash %rbx here since this call should never return. */
/* We can also take advantage of the fact that the linux syscall trap
* handler saves all the registers, so we don't need a stack to keep
* the retCode argument for exit while doing the munmap */
/* TODO(dmtriyz): No one expects this code to return, so even if
* munmap fails, we have to exit. This should probably be fixed, but
* since ARM side does the same thing, leave it as is.
*/
/* args passed through registers */
mov $__NR_munmap, %eax /* shouldn't change %rdx (retCode) */
syscall
mov %rdx, %rdi /* retrieve the retCode */
mov $__NR_exit, %eax
syscall
/* exit does not return */
/* can't have a ret here since we no longer have a usable stack. Seems
* that presently, 'hlt' will cause the program to segfault.. but this
* should never happen :) */
hlt

82
libc/arch-x86_64/bionic/_setjmp.S Normal file
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@ -0,0 +1,82 @@
/* $OpenBSD: _setjmp.S,v 1.1 2004/01/28 01:44:45 mickey Exp $ */
/* $NetBSD: _setjmp.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Frank van der Linden for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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 <machine/asm.h>
#include <machine/setjmp.h>
/*
* C library -- _setjmp, _longjmp
*
* _longjmp(a,v)
* will generate a "return(v)" from the last call to
* _setjmp(a)
* by restoring registers from the stack.
* The previous signal state is NOT restored.
*/
ENTRY(_setjmp)
movq (%rsp),%r11
movq %rbx,(_JB_RBX * 8)(%rdi)
movq %rbp,(_JB_RBP * 8)(%rdi)
movq %r12,(_JB_R12 * 8)(%rdi)
movq %r13,(_JB_R13 * 8)(%rdi)
movq %r14,(_JB_R14 * 8)(%rdi)
movq %r15,(_JB_R15 * 8)(%rdi)
movq %rsp,(_JB_RSP * 8)(%rdi)
movq %r11,(_JB_PC * 8)(%rdi)
xorl %eax,%eax
ret
ENTRY(_longjmp)
movq (_JB_RBX * 8)(%rdi),%rbx
movq (_JB_RBP * 8)(%rdi),%rbp
movq (_JB_R12 * 8)(%rdi),%r12
movq (_JB_R13 * 8)(%rdi),%r13
movq (_JB_R14 * 8)(%rdi),%r14
movq (_JB_R15 * 8)(%rdi),%r15
movq (_JB_RSP * 8)(%rdi),%rsp
movq (_JB_PC * 8)(%rdi),%r11
movl %esi,%eax
testl %eax,%eax
jnz 1f
incl %eax
1: movq %r11,0(%rsp)
ret

111
libc/arch-x86_64/bionic/clone.S Normal file
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@ -0,0 +1,111 @@
/*
* Copyright (C) 2013 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 <asm/unistd.h>
#include <machine/asm.h>
// int __pthread_clone(void* (*fn)(void*), void* tls, int flags, void* arg);
ENTRY(__pthread_clone)
# save tls
movq %rsi, %r11
# 16-byte alignment on child stack
andq $~15, %rsi
# insert arguments onto the child stack
movq %rdi, -32(%rsi)
movq %rcx, -24(%rsi)
movq %r11, -16(%rsi)
subq $32, %rsi
movq %rdx, %rdi
movl $__NR_clone, %eax
syscall
testl %eax, %eax
jns 1f
# an error occurred, set errno and return -1
negl %eax
movl %eax, %edi
call __set_errno
orl $-1, %eax
jmp 2f
1:
jnz 2f
# we're in the child thread now, call __thread_entry
# with the appropriate arguments on the child stack
# we already placed most of them
call __thread_entry
hlt
2:
ret
/*
* int __bionic_clone(unsigned long clone_flags,
* void* newsp,
* int *parent_tidptr,
* void *new_tls,
* int *child_tidptr,
* int (*fn)(void *),
* void *arg);
*/
ENTRY(__bionic_clone)
# insert arguments onto the child stack
andq $~15, %rsi
movq %r9, -16(%rsi)
# 7th argument (arg) goes through stack
movq 8(%rsp), %rax
movq %rax, -8(%rsi)
subq $16, %rsi
movq %r8, %r10
movq %rcx, %r8
movl $__NR_clone, %eax
syscall
testl %eax, %eax
jns 1f
# an error occurred, set errno and return -1
negl %eax
movl %eax, %edi
call __set_errno
orl $-1, %eax
jmp 2f
1:
jnz 2f
# we're in the child now, call __bionic_clone_entry
# with the appropriate arguments on the child stack
# we already placed most of them
call __bionic_clone_entry
hlt
2:
ret

67
libc/arch-x86_64/bionic/futex_x86_64.S Normal file
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@ -0,0 +1,67 @@
/*
* Copyright (C) 2013 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 <asm/unistd.h>
#include <machine/asm.h>
#define FUTEX_WAIT 0
#define FUTEX_WAKE 1
/*
* int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout)
*/
ENTRY(__futex_wait)
mov %rdx, %r10 /* timeout */
mov %esi, %edx /* val */
mov $FUTEX_WAIT, %esi /* op */
mov $__NR_futex, %eax
syscall
ret
/* int __futex_wake(volatile void *ftx, int count) */
ENTRY(__futex_wake)
mov %esi, %edx
mov $FUTEX_WAKE, %esi
mov $__NR_futex, %eax
syscall
ret
/* int __futex_syscall3(volatile void *ftx, int op, int count) */
ENTRY(__futex_syscall3)
mov $__NR_futex, %eax
syscall
ret
/* int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout) */
ENTRY(__futex_syscall4)
mov %rcx, %r10 /* timeout */
mov $__NR_futex, %eax
syscall
ret

103
libc/arch-x86_64/bionic/setjmp.S Normal file
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@ -0,0 +1,103 @@
/* $OpenBSD: setjmp.S,v 1.3 2012/08/22 17:19:34 pascal Exp $ */
/* $NetBSD: __setjmp14.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Frank van der Linden for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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 <machine/asm.h>
#include <machine/setjmp.h>
/*
* C library -- _setjmp, _longjmp
*
* longjmp(a,v)
* will generate a "return(v)" from the last call to
* setjmp(a)
* by restoring registers from the stack.
* The previous signal state is restored.
*/
ENTRY(setjmp)
pushq %rdi
xorq %rdi,%rdi
#ifdef __PIC__
call PIC_PLT(_C_LABEL(sigblock))
#else
call _C_LABEL(sigblock)
#endif
popq %rdi
movq %rax,(_JB_SIGMASK * 8)(%rdi)
movq (%rsp),%r11
movq %rbx,(_JB_RBX * 8)(%rdi)
movq %rbp,(_JB_RBP * 8)(%rdi)
movq %r12,(_JB_R12 * 8)(%rdi)
movq %r13,(_JB_R13 * 8)(%rdi)
movq %r14,(_JB_R14 * 8)(%rdi)
movq %r15,(_JB_R15 * 8)(%rdi)
movq %rsp,(_JB_RSP * 8)(%rdi)
movq %r11,(_JB_PC * 8)(%rdi)
2: xorl %eax,%eax
ret
ENTRY(longjmp)
movq %rdi,%r12
movl %esi,%r8d
movq (_JB_SIGMASK * 8)(%rdi),%rdi
pushq %r8
#ifdef __PIC__
call PIC_PLT(_C_LABEL(sigsetmask))
#else
call _C_LABEL(sigsetmask)
#endif
popq %r8
movq (_JB_RBX * 8)(%r12),%rbx
movq (_JB_RBP * 8)(%r12),%rbp
movq (_JB_R13 * 8)(%r12),%r13
movq (_JB_R14 * 8)(%r12),%r14
movq (_JB_R15 * 8)(%r12),%r15
movq (_JB_RSP * 8)(%r12),%rsp
movq (_JB_PC * 8)(%r12),%r11
movq (_JB_R12 * 8)(%r12),%r12
movl %r8d,%eax
testl %eax,%eax
jnz 1f
incl %eax
1: movq %r11,0(%rsp)
ret

52
libc/arch-x86_64/bionic/sigaction.c Normal file
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@ -0,0 +1,52 @@
/*
* Copyright (C) 2013 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>
extern void __rt_sigreturn(void);
extern int __rt_sigaction(int, const struct sigaction*, struct sigaction*, size_t);
int sigaction(int sig, const struct sigaction* act, struct sigaction* old_act) {
struct sigaction sa;
if (act != NULL && !(act->sa_flags & SA_RESTORER)) {
sa = *act;
act = &sa;
sa.sa_flags |= SA_RESTORER;
sa.sa_restorer = &__rt_sigreturn;
}
int result = __rt_sigaction(sig, act, old_act, sizeof(sigset_t));
if (old_act != NULL && (old_act->sa_restorer == &__rt_sigreturn)) {
old_act->sa_flags &= ~SA_RESTORER;
}
return result;
}

35
libc/arch-x86_64/bionic/sigprocmask.c Normal file
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@ -0,0 +1,35 @@
/*
* Copyright (C) 2013 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>
extern int __rt_sigprocmask(int, const sigset_t*, sigset_t*, size_t);
int sigprocmask(int how, const sigset_t* set, sigset_t* old_set) {
return __rt_sigprocmask(how, set, old_set, sizeof(sigset_t));
}

107
libc/arch-x86_64/bionic/sigsetjmp.S Normal file
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@ -0,0 +1,107 @@
/* $OpenBSD: sigsetjmp.S,v 1.3 2012/08/22 17:19:34 pascal Exp $ */
/* $NetBSD: __setjmp14.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Frank van der Linden for Wasabi Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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 <machine/asm.h>
#include <machine/setjmp.h>
/*
* C library -- _setjmp, _longjmp
*
* longjmp(a,v)
* will generate a "return(v)" from the last call to
* setjmp(a)
* by restoring registers from the stack.
* The previous signal state is restored.
*/
ENTRY(sigsetjmp)
movl %esi,(_JB_SIGFLAG * 8)(%rdi)
testl %esi,%esi
jz 2f
pushq %rdi
xorq %rdi,%rdi
#ifdef __PIC__
call PIC_PLT(_C_LABEL(sigblock))
#else
call _C_LABEL(sigblock)
#endif
popq %rdi
movq %rax,(_JB_SIGMASK * 8)(%rdi)
2: movq (%rsp),%r11
movq %rbx,(_JB_RBX * 8)(%rdi)
movq %rbp,(_JB_RBP * 8)(%rdi)
movq %r12,(_JB_R12 * 8)(%rdi)
movq %r13,(_JB_R13 * 8)(%rdi)
movq %r14,(_JB_R14 * 8)(%rdi)
movq %r15,(_JB_R15 * 8)(%rdi)
movq %rsp,(_JB_RSP * 8)(%rdi)
movq %r11,(_JB_PC * 8)(%rdi)
2: xorl %eax,%eax
ret
ENTRY(siglongjmp)
movq %rdi,%r12
pushq %rsi
cmpl $0, (_JB_SIGFLAG * 8)(%rdi)
jz 2f
movq (_JB_SIGMASK * 8)(%rdi),%rdi
#ifdef __PIC__
call PIC_PLT(_C_LABEL(sigsetmask))
#else
call _C_LABEL(sigsetmask)
#endif
2: popq %rax
movq (_JB_RBX * 8)(%r12),%rbx
movq (_JB_RBP * 8)(%r12),%rbp
movq (_JB_R13 * 8)(%r12),%r13
movq (_JB_R14 * 8)(%r12),%r14
movq (_JB_R15 * 8)(%r12),%r15
movq (_JB_RSP * 8)(%r12),%rsp
movq (_JB_PC * 8)(%r12),%r11
movq (_JB_R12 * 8)(%r12),%r12
testl %eax,%eax
jnz 1f
incl %eax
1: movq %r11,0(%rsp)
ret

35
libc/arch-x86_64/bionic/sigsuspend.c Normal file
View File

@ -0,0 +1,35 @@
/*
* Copyright (C) 2013 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>
extern int __rt_sigsuspend(const sigset_t*, size_t);
int sigsuspend(const sigset_t* set) {
return __rt_sigsuspend(set, sizeof(sigset_t));
}

65
libc/arch-x86_64/bionic/syscall.S Normal file
View File

@ -0,0 +1,65 @@
/*
* Copyright (C) 2013 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.
*/
/*
* Generic syscall call.
* Upon entry:
* %rax: system call number
* %rdi: arg0 to system call
* %rsi: arg1
* %rdx: arg2
* %rcx: arg3 - syscall expects it at %r10
* %r8: arg4
* %r9: arg5
*/
#include <asm/unistd.h>
#include <linux/err.h>
#include <machine/asm.h>
ENTRY(syscall)
# All arguments are passed via registers.
# (Not all will be valid, depending on the syscall.)
mov %edi, %eax
mov %rsi, %rdi
mov %rdx, %rsi
mov %rcx, %rdx
mov %r8, %r10
mov %r9, %r8
mov 8(%rsp), %r9
# Make the system call.
syscall
cmpq $-MAX_ERRNO, %rax
jb 1f
negl %eax
movl %eax, %edi
call __set_errno
orq $-1, %rax
1:
ret

2
libc/arch-x86_64/syscalls.mk
View File

@ -41,7 +41,7 @@ syscall_src += arch-x86_64/syscalls/vfork.S
syscall_src += arch-x86_64/syscalls/setregid.S
syscall_src += arch-x86_64/syscalls/chroot.S
syscall_src += arch-x86_64/syscalls/prctl.S
syscall_src += arch-x86_64/syscalls/arch_prctl.S
syscall_src += arch-x86_64/syscalls/__arch_prctl.S
syscall_src += arch-x86_64/syscalls/capget.S
syscall_src += arch-x86_64/syscalls/capset.S
syscall_src += arch-x86_64/syscalls/sigaltstack.S

4
libc/arch-x86_64/syscalls/arch_prctl.S → libc/arch-x86_64/syscalls/__arch_prctl.S
View File

@ -3,7 +3,7 @@
#include <linux/err.h>
#include <machine/asm.h>
ENTRY(arch_prctl)
ENTRY(__arch_prctl)
movl $__NR_arch_prctl, %eax
syscall
cmpq $-MAX_ERRNO, %rax
@ -14,4 +14,4 @@ ENTRY(arch_prctl)
orq $-1, %rax
1:
ret
END(arch_prctl)
END(__arch_prctl)

15
libc/arch-x86_64/x86_64.mk
View File

@ -1,17 +1,18 @@
_LIBC_ARCH_COMMON_SRC_FILES := \
arch-x86_64/bionic/__get_sp.S \
arch-x86_64/bionic/__get_tls.c \
arch-x86_64/bionic/__set_tls.c \
arch-x86_64/bionic/clone.S \
arch-x86_64/bionic/_exit_with_stack_teardown.S \
arch-x86_64/bionic/futex_x86_64.S \
arch-x86_64/bionic/setjmp.S \
arch-x86_64/bionic/__get_sp.S \
arch-x86_64/bionic/__get_tls.c \
arch-x86_64/bionic/__rt_sigreturn.S \
arch-x86_64/bionic/_setjmp.S \
arch-x86_64/bionic/sigsetjmp.S \
arch-x86_64/bionic/syscall.S \
arch-x86_64/bionic/sigprocmask.c \
arch-x86_64/bionic/setjmp.S \
arch-x86_64/bionic/__set_tls.c \
arch-x86_64/bionic/sigaction.c \
arch-x86_64/bionic/sigprocmask.c \
arch-x86_64/bionic/sigsetjmp.S \
arch-x86_64/bionic/sigsuspend.c \
arch-x86_64/bionic/syscall.S \
_LIBC_ARCH_STATIC_SRC_FILES := \
bionic/dl_iterate_phdr_static.c \