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am fb8ce528: am 8fb977ba: Merge "Add arch-x86_64/bionic."

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* commit 'fb8ce528373555a4b2782343e0b19e0b074e8e92':
  Add arch-x86_64/bionic.
This commit is contained in:
Elliott Hughes 2013-10-04 15:06:24 -07:00 committed by Android Git Automerger
commit 12e62b4fe7
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 # IMPORTANT: Even though <sys/prctl.h> declares prctl(int, ...), the syscall stub must take 6 arguments
# to match the kernel implementation. # to match the kernel implementation.
int prctl(int option, unsigned int arg2, unsigned int arg3, unsigned int arg4, unsigned int arg5) all 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 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 capset(cap_user_header_t header, const cap_user_data_t data) all
int sigaltstack(const stack_t*, stack_t*) 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
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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_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
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@ -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/setregid.S
syscall_src += arch-x86_64/syscalls/chroot.S syscall_src += arch-x86_64/syscalls/chroot.S
syscall_src += arch-x86_64/syscalls/prctl.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/capget.S
syscall_src += arch-x86_64/syscalls/capset.S syscall_src += arch-x86_64/syscalls/capset.S
syscall_src += arch-x86_64/syscalls/sigaltstack.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 <linux/err.h>
#include <machine/asm.h> #include <machine/asm.h>
ENTRY(arch_prctl) ENTRY(__arch_prctl)
movl $__NR_arch_prctl, %eax movl $__NR_arch_prctl, %eax
syscall syscall
cmpq $-MAX_ERRNO, %rax cmpq $-MAX_ERRNO, %rax
@ -14,4 +14,4 @@ ENTRY(arch_prctl)
orq $-1, %rax orq $-1, %rax
1: 1:
ret 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 := \ _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/clone.S \
arch-x86_64/bionic/_exit_with_stack_teardown.S \ arch-x86_64/bionic/_exit_with_stack_teardown.S \
arch-x86_64/bionic/futex_x86_64.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/_setjmp.S \
arch-x86_64/bionic/sigsetjmp.S \ arch-x86_64/bionic/setjmp.S \
arch-x86_64/bionic/syscall.S \ arch-x86_64/bionic/__set_tls.c \
arch-x86_64/bionic/sigprocmask.c \
arch-x86_64/bionic/sigaction.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/sigsuspend.c \
arch-x86_64/bionic/syscall.S \
_LIBC_ARCH_STATIC_SRC_FILES := \ _LIBC_ARCH_STATIC_SRC_FILES := \
bionic/dl_iterate_phdr_static.c \ bionic/dl_iterate_phdr_static.c \