diff options
Diffstat (limited to 'libc/arch-arm/bionic')
| -rw-r--r-- | libc/arch-arm/bionic/__get_pc.S | 33 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/__get_sp.S | 33 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/_exit_with_stack_teardown.S | 55 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/_setjmp.S | 106 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/atomics_arm.S | 178 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/clone.S | 74 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/crtbegin_dynamic.S | 92 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/crtbegin_static.S | 92 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/crtend.S | 40 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/exidx_dynamic.c | 47 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/exidx_static.c | 45 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/ffs.S | 82 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/kill.S | 53 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/memcmp.S | 285 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/memcmp16.S | 236 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/memcpy.S | 387 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/memset.S | 117 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/setjmp.S | 136 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/sigsetjmp.S | 62 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/strlen.c | 129 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/syscall.S | 71 | ||||
| -rw-r--r-- | libc/arch-arm/bionic/tkill.S | 53 |
22 files changed, 0 insertions, 2406 deletions
diff --git a/libc/arch-arm/bionic/__get_pc.S b/libc/arch-arm/bionic/__get_pc.S deleted file mode 100644 index d1377c7..0000000 --- a/libc/arch-arm/bionic/__get_pc.S +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -.global __get_pc - -__get_pc: - mov r0, pc - bx lr - diff --git a/libc/arch-arm/bionic/__get_sp.S b/libc/arch-arm/bionic/__get_sp.S deleted file mode 100644 index 9acaf3d..0000000 --- a/libc/arch-arm/bionic/__get_sp.S +++ /dev/null @@ -1,33 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -.global __get_sp - -__get_sp: - mov r0, sp - bx lr - diff --git a/libc/arch-arm/bionic/_exit_with_stack_teardown.S b/libc/arch-arm/bionic/_exit_with_stack_teardown.S deleted file mode 100644 index 89f6c90..0000000 --- a/libc/arch-arm/bionic/_exit_with_stack_teardown.S +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (C) 2008 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> - -.text -.type _exit_with_stack_teardown, #function -.globl _exit_with_stack_teardown -.align 4 - -@ void _exit_with_stack_teardown(void * stackBase, int stackSize, int retCode) - -_exit_with_stack_teardown: - -#if __ARM_EABI__ - mov lr, r2 - ldr r7, =__NR_munmap - swi #0 @ the stack is destroyed by this call - mov r0, lr - ldr r7, =__NR_exit - swi #0 -#else - mov lr, r2 - swi # __NR_munmap @ the stack is destroyed by this call - mov r0, lr - swi # __NR_exit -#endif - - @ exit() should never return, cause a crash if it does - mov r0, #0 - ldr r0, [r0] diff --git a/libc/arch-arm/bionic/_setjmp.S b/libc/arch-arm/bionic/_setjmp.S deleted file mode 100644 index 6a27af2..0000000 --- a/libc/arch-arm/bionic/_setjmp.S +++ /dev/null @@ -1,106 +0,0 @@ -/* $OpenBSD: _setjmp.S,v 1.2 2004/02/01 05:40:52 drahn Exp $ */ -/* $NetBSD: _setjmp.S,v 1.5 2003/04/05 23:08:51 bjh21 Exp $ */ - -/* - * Copyright (c) 1997 Mark Brinicombe - * All rights reserved. - * - * 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 by Mark Brinicombe - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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> -#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. - * - * Note: r0 is the return value - * r1-r3 are scratch registers in functions - */ - -ENTRY(_setjmp) - ldr r1, .L_setjmp_magic - str r1, [r0], #4 -#ifdef SOFTFLOAT - add r0, r0, #52 -#else - /* Store fp registers */ - sfm f4, 4, [r0], #48 - /* Store fpsr */ - rfs r1 - str r1, [r0], #0x0004 -#endif /* SOFTFLOAT */ - /* Store integer registers */ - stmia r0, {r4-r14} - - mov r0, #0x00000000 - bx lr - -.L_setjmp_magic: - .word _JB_MAGIC__SETJMP - -ENTRY(_longjmp) - ldr r2, .L_setjmp_magic - ldr r3, [r0], #4 - teq r2, r3 - bne botch - -#ifdef SOFTFLOAT - add r0, r0, #52 -#else - /* Restore fp registers */ - lfm f4, 4, [r0], #48 - /* Restore fpsr */ - ldr r4, [r0], #0x0004 - wfs r4 -#endif /* SOFTFLOAT */ - /* Restore integer registers */ - ldmia r0, {r4-r14} - - /* Validate sp and r14 */ - teq sp, #0 - teqne r14, #0 - beq botch - - /* Set return value */ - mov r0, r1 - teq r0, #0x00000000 - moveq r0, #0x00000001 - bx lr - - /* validation failed, die die die. */ -botch: - bl PIC_SYM(_C_LABEL(longjmperror), PLT) - bl PIC_SYM(_C_LABEL(abort), PLT) - b . - 8 /* Cannot get here */ diff --git a/libc/arch-arm/bionic/atomics_arm.S b/libc/arch-arm/bionic/atomics_arm.S deleted file mode 100644 index b2da09f..0000000 --- a/libc/arch-arm/bionic/atomics_arm.S +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Copyright (C) 2008 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 <sys/linux-syscalls.h> - -.global __atomic_cmpxchg -.global __atomic_swap -.global __atomic_dec -.global __atomic_inc -.global __futex_wait -.global __futex_wake - -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 - -#if 1 - .equ kernel_cmpxchg, 0xFFFF0FC0 - .equ kernel_atomic_base, 0xFFFF0FFF -__atomic_dec: - stmdb sp!, {r4, lr} - mov r2, r0 -1: @ atomic_dec - ldr r0, [r2] - mov r3, #kernel_atomic_base - add lr, pc, #4 - sub r1, r0, #1 - add pc, r3, #(kernel_cmpxchg - kernel_atomic_base) - bcc 1b - add r0, r1, #1 - ldmia sp!, {r4, lr} - bx lr - -__atomic_inc: - stmdb sp!, {r4, lr} - mov r2, r0 -1: @ atomic_inc - ldr r0, [r2] - mov r3, #kernel_atomic_base - add lr, pc, #4 - add r1, r0, #1 - add pc, r3, #(kernel_cmpxchg - kernel_atomic_base) - bcc 1b - sub r0, r1, #1 - ldmia sp!, {r4, lr} - bx lr - -/* r0(old) r1(new) r2(addr) -> r0(zero_if_succeeded) */ -__atomic_cmpxchg: - stmdb sp!, {r4, lr} - mov r4, r0 /* r4 = save oldvalue */ -1: @ atomic_cmpxchg - mov r3, #kernel_atomic_base - add lr, pc, #4 - mov r0, r4 /* r0 = oldvalue */ - add pc, r3, #(kernel_cmpxchg - kernel_atomic_base) - bcs 2f /* swap was made. we're good, return. */ - ldr r3, [r2] /* swap not made, see if it's because *ptr!=oldvalue */ - cmp r3, r4 - beq 1b -2: @ atomic_cmpxchg - ldmia sp!, {r4, lr} - bx lr -#else -#define KUSER_CMPXCHG 0xffffffc0 - -/* r0(old) r1(new) r2(addr) -> r0(zero_if_succeeded) */ -__atomic_cmpxchg: - stmdb sp!, {r4, lr} - mov r4, r0 /* r4 = save oldvalue */ -1: add lr, pc, #4 - mov r0, r4 /* r0 = oldvalue */ - mov pc, #KUSER_CMPXCHG - bcs 2f /* swap was made. we're good, return. */ - ldr r3, [r2] /* swap not made, see if it's because *ptr!=oldvalue */ - cmp r3, r4 - beq 1b -2: ldmia sp!, {r4, lr} - bx lr - -/* r0(addr) -> r0(old) */ -__atomic_dec: - stmdb sp!, {r4, lr} - mov r2, r0 /* address */ -1: ldr r0, [r2] /* oldvalue */ - add lr, pc, #4 - sub r1, r0, #1 /* newvalue = oldvalue - 1 */ - mov pc, #KUSER_CMPXCHG - bcc 1b /* no swap, try again until we get it right */ - mov r0, ip /* swapped, return the old value */ - ldmia sp!, {r4, lr} - bx lr - -/* r0(addr) -> r0(old) */ -__atomic_inc: - stmdb sp!, {r4, lr} - mov r2, r0 /* address */ -1: ldr r0, [r2] /* oldvalue */ - add lr, pc, #4 - add r1, r0, #1 /* newvalue = oldvalue + 1 */ - mov pc, #KUSER_CMPXCHG - bcc 1b /* no swap, try again until we get it right */ - mov r0, ip /* swapped, return the old value */ - ldmia sp!, {r4, lr} - bx lr -#endif - -/* r0(new) r1(addr) -> r0(old) */ -__atomic_swap: - swp r0, r0, [r1] - bx lr - -/* __futex_wait(*ftx, val, *timespec) */ -/* __futex_syscall(*ftx, op, val, *timespec, *addr2, val3) */ - -#if __ARM_EABI__ - -__futex_wait: - .fnstart - stmdb sp!, {r4, r7} - .save {r4, r7} - mov r3, r2 - mov r2, r1 - mov r1, #FUTEX_WAIT - ldr r7, =__NR_futex - swi #0 - ldmia sp!, {r4, r7} - bx lr - .fnend - -__futex_wake: - stmdb sp!, {r4, r7} - mov r2, r1 - mov r1, #FUTEX_WAKE - ldr r7, =__NR_futex - swi #0 - ldmia sp!, {r4, r7} - bx lr - -#else - -__futex_wait: - mov r3, r2 - mov r2, r1 - mov r1, #FUTEX_WAIT - swi #__NR_futex - bx lr - -__futex_wake: - mov r2, r1 - mov r1, #FUTEX_WAKE - swi #__NR_futex - bx lr - -#endif diff --git a/libc/arch-arm/bionic/clone.S b/libc/arch-arm/bionic/clone.S deleted file mode 100644 index 791c73d..0000000 --- a/libc/arch-arm/bionic/clone.S +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Copyright (C) 2008 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 <sys/linux-syscalls.h> - - .text - .type __pthread_clone, #function - .global __pthread_clone - .align 4 - -__pthread_clone: - @ insert the args onto the new stack - str r0, [r1, #-4] - str r3, [r1, #-8] - - @ do the system call - @ get flags - - mov r0, r2 - - @ new sp is already in r1 - -#if __ARM_EABI__ - stmfd sp!, {r4, r7} - ldr r7, =__NR_clone - swi #0 -#else - swi #__NR_clone -#endif - - movs r0, r0 -#if __ARM_EABI__ - ldmnefd sp!, {r4, r7} -#endif - blt __error - bxne lr - - - @ pick the function arg and call address off the stack and jump - @ to the C __thread_entry function which does some setup and then - @ calls the thread's start function - - ldr r0, [sp, #-4] - ldr r1, [sp, #-8] - mov r2, sp @ __thread_entry needs the TLS pointer - b __thread_entry - -__error: - mov r0, #-1 - bx lr diff --git a/libc/arch-arm/bionic/crtbegin_dynamic.S b/libc/arch-arm/bionic/crtbegin_dynamic.S deleted file mode 100644 index e265923..0000000 --- a/libc/arch-arm/bionic/crtbegin_dynamic.S +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - .text - .align 4 - .type _start,#function - .globl _start - -# this is the small startup code that is first run when -# any executable that is statically-linked with Bionic -# runs. -# -# it's purpose is to call __libc_init with appropriate -# arguments, which are: -# -# - the address of the raw data block setup by the Linux -# kernel ELF loader -# -# - address of an "onexit" function, not used on any -# platform supported by Bionic -# -# - address of the "main" function of the program. We -# can't hard-code it in the adr pseudo instruction -# so we use a tiny trampoline that will get relocated -# by the dynamic linker before this code runs -# -# - address of the constructor list -# -_start: - mov r0, sp - mov r1, #0 - adr r2, 0f - adr r3, 1f - b __libc_init - -0: b main - -1: .long __PREINIT_ARRAY__ - .long __INIT_ARRAY__ - .long __FINI_ARRAY__ - .long __CTOR_LIST__ - -# the .ctors section contains a list of pointers to "constructor" -# functions that need to be called in order during C library initialization, -# just before the program is being run. This is a C++ requirement -# -# the last entry shall be 0, and is defined in crtend.S -# - .section .preinit_array, "aw" - .globl __PREINIT_ARRAY__ -__PREINIT_ARRAY__: - .long -1 - - .section .init_array, "aw" - .globl __INIT_ARRAY__ -__INIT_ARRAY__: - .long -1 - - .section .fini_array, "aw" - .globl __FINI_ARRAY__ -__FINI_ARRAY__: - .long -1 - - .section .ctors, "aw" - .globl __CTOR_LIST__ -__CTOR_LIST__: - .long -1 - diff --git a/libc/arch-arm/bionic/crtbegin_static.S b/libc/arch-arm/bionic/crtbegin_static.S deleted file mode 100644 index e265923..0000000 --- a/libc/arch-arm/bionic/crtbegin_static.S +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - .text - .align 4 - .type _start,#function - .globl _start - -# this is the small startup code that is first run when -# any executable that is statically-linked with Bionic -# runs. -# -# it's purpose is to call __libc_init with appropriate -# arguments, which are: -# -# - the address of the raw data block setup by the Linux -# kernel ELF loader -# -# - address of an "onexit" function, not used on any -# platform supported by Bionic -# -# - address of the "main" function of the program. We -# can't hard-code it in the adr pseudo instruction -# so we use a tiny trampoline that will get relocated -# by the dynamic linker before this code runs -# -# - address of the constructor list -# -_start: - mov r0, sp - mov r1, #0 - adr r2, 0f - adr r3, 1f - b __libc_init - -0: b main - -1: .long __PREINIT_ARRAY__ - .long __INIT_ARRAY__ - .long __FINI_ARRAY__ - .long __CTOR_LIST__ - -# the .ctors section contains a list of pointers to "constructor" -# functions that need to be called in order during C library initialization, -# just before the program is being run. This is a C++ requirement -# -# the last entry shall be 0, and is defined in crtend.S -# - .section .preinit_array, "aw" - .globl __PREINIT_ARRAY__ -__PREINIT_ARRAY__: - .long -1 - - .section .init_array, "aw" - .globl __INIT_ARRAY__ -__INIT_ARRAY__: - .long -1 - - .section .fini_array, "aw" - .globl __FINI_ARRAY__ -__FINI_ARRAY__: - .long -1 - - .section .ctors, "aw" - .globl __CTOR_LIST__ -__CTOR_LIST__: - .long -1 - diff --git a/libc/arch-arm/bionic/crtend.S b/libc/arch-arm/bionic/crtend.S deleted file mode 100644 index 2f3b1ed..0000000 --- a/libc/arch-arm/bionic/crtend.S +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - - .section .preinit_array, "aw" - .long 0 - - .section .init_array, "aw" - .long 0 - - .section .fini_array, "aw" - .long 0 - - .section .ctors, "aw" - .long 0 - diff --git a/libc/arch-arm/bionic/exidx_dynamic.c b/libc/arch-arm/bionic/exidx_dynamic.c deleted file mode 100644 index 962606f..0000000 --- a/libc/arch-arm/bionic/exidx_dynamic.c +++ /dev/null @@ -1,47 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -typedef long unsigned int *_Unwind_Ptr; - -/* Stubbed out in libdl and defined in the dynamic linker. - * Same semantics as __gnu_Unwind_Find_exidx(). - */ -extern _Unwind_Ptr dl_unwind_find_exidx(_Unwind_Ptr pc, int *pcount); - -/* For a given PC, find the .so that it belongs to. - * Returns the base address of the .ARM.exidx section - * for that .so, and the number of 8-byte entries - * in that section (via *pcount). - * - * libgcc declares __gnu_Unwind_Find_exidx() as a weak symbol, with - * the expectation that libc will define it and call through to - * a differently-named function in the dynamic linker. - */ -_Unwind_Ptr __gnu_Unwind_Find_exidx(_Unwind_Ptr pc, int *pcount) -{ - return dl_unwind_find_exidx(pc, pcount); -} diff --git a/libc/arch-arm/bionic/exidx_static.c b/libc/arch-arm/bionic/exidx_static.c deleted file mode 100644 index e79e951..0000000 --- a/libc/arch-arm/bionic/exidx_static.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -typedef long unsigned int *_Unwind_Ptr; - -/* Find the .ARM.exidx section (which in the case of a static executable - * can be identified through its start and end symbols), and return its - * beginning and numbe of entries to the caller. Note that for static - * executables we do not need to use the value of the PC to find the - * EXIDX section. - */ - -extern unsigned __exidx_end; -extern unsigned __exidx_start; - -_Unwind_Ptr __gnu_Unwind_Find_exidx(_Unwind_Ptr pc __attribute__((unused)), - int *pcount) -{ - *pcount = (__exidx_end-__exidx_start)/8; - return (_Unwind_Ptr)__exidx_start; -} diff --git a/libc/arch-arm/bionic/ffs.S b/libc/arch-arm/bionic/ffs.S deleted file mode 100644 index f11141c..0000000 --- a/libc/arch-arm/bionic/ffs.S +++ /dev/null @@ -1,82 +0,0 @@ -/* $NetBSD: ffs.S,v 1.5 2003/04/05 23:08:52 bjh21 Exp $ */ -/* - * Copyright (c) 2001 Christopher Gilbert - * All rights reserved. - * - * 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. The name of the company nor the name of the author may be used to - * endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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> - -/* - * ffs - find first set bit, this algorithm isolates the first set - * bit, then multiplies the number by 0x0450fbaf which leaves the top - * 6 bits as an index into the table. This algorithm should be a win - * over the checking each bit in turn as per the C compiled version. - * - * under ARMv5 there's an instruction called CLZ (count leading Zero's) that - * could be used - * - * This is the ffs algorithm devised by d.seal and posted to comp.sys.arm on - * 16 Feb 1994. - */ - -ENTRY(ffs) - /* Standard trick to isolate bottom bit in r0 or 0 if r0 = 0 on entry */ - rsb r1, r0, #0 - ands r0, r0, r1 -#ifndef __ARM_ARCH_5__ - /* - * now r0 has at most one set bit, call this X - * if X = 0, all further instructions are skipped - */ - adrne r2, .L_ffs_table - orrne r0, r0, r0, lsl #4 /* r0 = X * 0x11 */ - orrne r0, r0, r0, lsl #6 /* r0 = X * 0x451 */ - rsbne r0, r0, r0, lsl #16 /* r0 = X * 0x0450fbaf */ - - /* now lookup in table indexed on top 6 bits of r0 */ - ldrneb r0, [ r2, r0, lsr #26 ] - - bx lr - -.text; -.type .L_ffs_table, _ASM_TYPE_OBJECT; -.L_ffs_table: -/* 0 1 2 3 4 5 6 7 */ - .byte 0, 1, 2, 13, 3, 7, 0, 14 /* 0- 7 */ - .byte 4, 0, 8, 0, 0, 0, 0, 15 /* 8-15 */ - .byte 11, 5, 0, 0, 9, 0, 0, 26 /* 16-23 */ - .byte 0, 0, 0, 0, 0, 22, 28, 16 /* 24-31 */ - .byte 32, 12, 6, 0, 0, 0, 0, 0 /* 32-39 */ - .byte 10, 0, 0, 25, 0, 0, 21, 27 /* 40-47 */ - .byte 31, 0, 0, 0, 0, 24, 0, 20 /* 48-55 */ - .byte 30, 0, 23, 19, 29, 18, 17, 0 /* 56-63 */ -#else - clzne r0, r0 - rsbne r0, r0, #32 - bx lr -#endif - diff --git a/libc/arch-arm/bionic/kill.S b/libc/arch-arm/bionic/kill.S deleted file mode 100644 index 2954091..0000000 --- a/libc/arch-arm/bionic/kill.S +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -/* unlike our auto-generated syscall stubs, this code saves lr - on the stack, as well as a few other registers. this makes - our stack unwinder happy, when we generate debug stack - traces after the C library or other parts of the system - abort due to a fatal runtime error (e.g. detection - of a corrupted malloc heap). -*/ -#include <sys/linux-syscalls.h> - -#ifndef __NR_kill -#define __NR_kill 37 -#endif - - .text - .type kill, #function - .globl kill - .align 4 - -kill: - stmfd sp!, {r4-r7, ip, lr} - ldr r7, =__NR_kill - swi #0 - ldmfd sp!, {r4-r7, ip, lr} - movs r0, r0 - bxpl lr - b __set_syscall_errno diff --git a/libc/arch-arm/bionic/memcmp.S b/libc/arch-arm/bionic/memcmp.S deleted file mode 100644 index f45b56b..0000000 --- a/libc/arch-arm/bionic/memcmp.S +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright (C) 2008 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/cpu-features.h> - - .text - - .global memcmp - .type memcmp, %function - .align 4 - -/* - * Optimized memcmp() for ARM9. - * This would not be optimal on XScale or ARM11, where more prefetching - * and use of PLD will be needed. - * The 2 major optimzations here are - * (1) The main loop compares 16 bytes at a time - * (2) The loads are scheduled in a way they won't stall - */ - -memcmp: - PLD (r0, #0) - PLD (r1, #0) - - /* take of the case where length is 0 or the buffers are the same */ - cmp r0, r1 - cmpne r2, #0 - moveq r0, #0 - bxeq lr - - /* save registers */ - stmfd sp!, {r4, lr} - - PLD (r0, #32) - PLD (r1, #32) - - /* since r0 hold the result, move the first source - * pointer somewhere else - */ - - mov r4, r0 - - /* make sure we have at least 8+4 bytes, this simplify things below - * and avoid some overhead for small blocks - */ - cmp r2, #(8+4) - bmi 8f - - /* align first pointer to word boundary - * offset = -src & 3 - */ - rsb r3, r4, #0 - ands r3, r3, #3 - beq 0f - - /* align first pointer */ - sub r2, r2, r3 -1: ldrb r0, [r4], #1 - ldrb ip, [r1], #1 - subs r0, r0, ip - bne 9f - subs r3, r3, #1 - bne 1b - - -0: /* here the first pointer is aligned, and we have at least 4 bytes - * to process. - */ - - /* see if the pointers are congruent */ - eor r0, r4, r1 - ands r0, r0, #3 - bne 5f - - /* congruent case, 32 bytes per iteration - * We need to make sure there are at least 32+4 bytes left - * because we effectively read ahead one word, and we could - * read past the buffer (and segfault) if we're not careful. - */ - - ldr ip, [r1] - subs r2, r2, #(32 + 4) - bmi 1f - -0: PLD (r4, #64) - PLD (r1, #64) - ldr r0, [r4], #4 - ldr lr, [r1, #4]! - eors r0, r0, ip - ldreq r0, [r4], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - ldreq r0, [r4], #4 - ldreq lr, [r1, #4]! - eoreqs r0, r0, ip - ldreq r0, [r4], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - ldreq r0, [r4], #4 - ldreq lr, [r1, #4]! - eoreqs r0, r0, ip - ldreq r0, [r4], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - ldreq r0, [r4], #4 - ldreq lr, [r1, #4]! - eoreqs r0, r0, ip - ldreq r0, [r4], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - bne 2f - subs r2, r2, #32 - bhs 0b - - /* do we have at least 4 bytes left? */ -1: adds r2, r2, #(32 - 4 + 4) - bmi 4f - - /* finish off 4 bytes at a time */ -3: ldr r0, [r4], #4 - ldr ip, [r1], #4 - eors r0, r0, ip - bne 2f - subs r2, r2, #4 - bhs 3b - - /* are we done? */ -4: adds r2, r2, #4 - moveq r0, #0 - beq 9f - - /* finish off the remaining bytes */ - b 8f - -2: /* the last 4 bytes are different, restart them */ - sub r4, r4, #4 - sub r1, r1, #4 - mov r2, #4 - - /* process the last few bytes */ -8: ldrb r0, [r4], #1 - ldrb ip, [r1], #1 - // stall - subs r0, r0, ip - bne 9f - subs r2, r2, #1 - bne 8b - -9: /* restore registers and return */ - ldmfd sp!, {r4, lr} - bx lr - - - - - -5: /*************** non-congruent case ***************/ - and r0, r1, #3 - cmp r0, #2 - bne 4f - - /* here, offset is 2 (16-bits aligned, special cased) */ - - /* make sure we have at least 16 bytes to process */ - subs r2, r2, #16 - addmi r2, r2, #16 - bmi 8b - - /* align the unaligned pointer */ - bic r1, r1, #3 - ldr lr, [r1], #4 - -6: PLD (r1, #64) - PLD (r4, #64) - mov ip, lr, lsr #16 - ldr lr, [r1], #4 - ldr r0, [r4], #4 - orr ip, ip, lr, lsl #16 - eors r0, r0, ip - moveq ip, lr, lsr #16 - ldreq lr, [r1], #4 - ldreq r0, [r4], #4 - orreq ip, ip, lr, lsl #16 - eoreqs r0, r0, ip - moveq ip, lr, lsr #16 - ldreq lr, [r1], #4 - ldreq r0, [r4], #4 - orreq ip, ip, lr, lsl #16 - eoreqs r0, r0, ip - moveq ip, lr, lsr #16 - ldreq lr, [r1], #4 - ldreq r0, [r4], #4 - orreq ip, ip, lr, lsl #16 - eoreqs r0, r0, ip - bne 7f - subs r2, r2, #16 - bhs 6b - sub r1, r1, #2 - /* are we done? */ - adds r2, r2, #16 - moveq r0, #0 - beq 9b - /* finish off the remaining bytes */ - b 8b - -7: /* fix up the 2 pointers and fallthrough... */ - sub r1, r1, #(4+2) - sub r4, r4, #4 - mov r2, #4 - b 8b - - -4: /*************** offset is 1 or 3 (less optimized) ***************/ - - stmfd sp!, {r5, r6, r7} - - // r5 = rhs - // r6 = lhs - // r7 = scratch - - mov r5, r0, lsl #3 /* r5 = right shift */ - rsb r6, r5, #32 /* r6 = left shift */ - - /* align the unaligned pointer */ - bic r1, r1, #3 - ldr r7, [r1], #4 - sub r2, r2, #8 - -6: mov ip, r7, lsr r5 - ldr r7, [r1], #4 - ldr r0, [r4], #4 - orr ip, ip, r7, lsl r6 - eors r0, r0, ip - moveq ip, r7, lsr r5 - ldreq r7, [r1], #4 - ldreq r0, [r4], #4 - orreq ip, ip, r7, lsl r6 - eoreqs r0, r0, ip - bne 7f - subs r2, r2, #8 - bhs 6b - - sub r1, r1, r6, lsr #3 - ldmfd sp!, {r5, r6, r7} - - /* are we done? */ - adds r2, r2, #8 - moveq r0, #0 - beq 9b - - /* finish off the remaining bytes */ - b 8b - -7: /* fix up the 2 pointers and fallthrough... */ - sub r1, r1, #4 - sub r1, r1, r6, lsr #3 - sub r4, r4, #4 - mov r2, #4 - ldmfd sp!, {r5, r6, r7} - b 8b diff --git a/libc/arch-arm/bionic/memcmp16.S b/libc/arch-arm/bionic/memcmp16.S deleted file mode 100644 index 38d8b62..0000000 --- a/libc/arch-arm/bionic/memcmp16.S +++ /dev/null @@ -1,236 +0,0 @@ -/* - * Copyright (C) 2008 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/cpu-features.h> - - .text - - .global __memcmp16 - .type __memcmp16, %function - .align 4 - -/* - * Optimized memcmp16() for ARM9. - * This would not be optimal on XScale or ARM11, where more prefetching - * and use of PLD will be needed. - * The 2 major optimzations here are - * (1) The main loop compares 16 bytes at a time - * (2) The loads are scheduled in a way they won't stall - */ - -__memcmp16: - PLD (r0, #0) - PLD (r1, #0) - - /* take of the case where length is nul or the buffers are the same */ - cmp r0, r1 - cmpne r2, #0 - moveq r0, #0 - bxeq lr - - /* since r0 hold the result, move the first source - * pointer somewhere else - */ - - mov r3, r0 - - /* make sure we have at least 12 words, this simplify things below - * and avoid some overhead for small blocks - */ - - cmp r2, #12 - bpl 0f - - /* small blocks (less then 12 words) */ - PLD (r0, #32) - PLD (r1, #32) - -1: ldrh r0, [r3], #2 - ldrh ip, [r1], #2 - subs r0, r0, ip - bxne lr - subs r2, r2, #1 - bne 1b - bx lr - - - /* save registers */ -0: stmfd sp!, {r4, lr} - - /* align first pointer to word boundary */ - tst r3, #2 - beq 0f - - ldrh r0, [r3], #2 - ldrh ip, [r1], #2 - sub r2, r2, #1 - subs r0, r0, ip - /* restore registers and return */ - ldmnefd sp!, {r4, lr} - bxne lr - - - -0: /* here the first pointer is aligned, and we have at least 3 words - * to process. - */ - - /* see if the pointers are congruent */ - eor r0, r3, r1 - ands r0, r0, #2 - bne 5f - - /* congruent case, 16 half-words per iteration - * We need to make sure there are at least 16+2 words left - * because we effectively read ahead one long word, and we could - * read past the buffer (and segfault) if we're not careful. - */ - - ldr ip, [r1] - subs r2, r2, #(16 + 2) - bmi 1f - -0: - PLD (r3, #64) - PLD (r1, #64) - ldr r0, [r3], #4 - ldr lr, [r1, #4]! - eors r0, r0, ip - ldreq r0, [r3], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - ldreq r0, [r3], #4 - ldreq lr, [r1, #4]! - eoreqs r0, r0, ip - ldreq r0, [r3], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - ldreq r0, [r3], #4 - ldreq lr, [r1, #4]! - eoreqs r0, r0, ip - ldreq r0, [r3], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - ldreq r0, [r3], #4 - ldreq lr, [r1, #4]! - eoreqs r0, r0, ip - ldreq r0, [r3], #4 - ldreq ip, [r1, #4]! - eoreqs r0, r0, lr - bne 2f - subs r2, r2, #16 - bhs 0b - - /* do we have at least 2 words left? */ -1: adds r2, r2, #(16 - 2 + 2) - bmi 4f - - /* finish off 2 words at a time */ -3: ldr r0, [r3], #4 - ldr ip, [r1], #4 - eors r0, r0, ip - bne 2f - subs r2, r2, #2 - bhs 3b - - /* are we done? */ -4: adds r2, r2, #2 - bne 8f - /* restore registers and return */ - mov r0, #0 - ldmfd sp!, {r4, lr} - bx lr - -2: /* the last 2 words are different, restart them */ - ldrh r0, [r3, #-4] - ldrh ip, [r1, #-4] - subs r0, r0, ip - ldreqh r0, [r3, #-2] - ldreqh ip, [r1, #-2] - subeqs r0, r0, ip - /* restore registers and return */ - ldmfd sp!, {r4, lr} - bx lr - - /* process the last few words */ -8: ldrh r0, [r3], #2 - ldrh ip, [r1], #2 - subs r0, r0, ip - bne 9f - subs r2, r2, #1 - bne 8b - -9: /* restore registers and return */ - ldmfd sp!, {r4, lr} - bx lr - - -5: /*************** non-congruent case ***************/ - - /* align the unaligned pointer */ - bic r1, r1, #3 - ldr lr, [r1], #4 - sub r2, r2, #8 - -6: - PLD (r3, #64) - PLD (r1, #64) - mov ip, lr, lsr #16 - ldr lr, [r1], #4 - ldr r0, [r3], #4 - orr ip, ip, lr, lsl #16 - eors r0, r0, ip - moveq ip, lr, lsr #16 - ldreq lr, [r1], #4 - ldreq r0, [r3], #4 - orreq ip, ip, lr, lsl #16 - eoreqs r0, r0, ip - moveq ip, lr, lsr #16 - ldreq lr, [r1], #4 - ldreq r0, [r3], #4 - orreq ip, ip, lr, lsl #16 - eoreqs r0, r0, ip - moveq ip, lr, lsr #16 - ldreq lr, [r1], #4 - ldreq r0, [r3], #4 - orreq ip, ip, lr, lsl #16 - eoreqs r0, r0, ip - bne 7f - subs r2, r2, #8 - bhs 6b - sub r1, r1, #2 - /* are we done? */ - adds r2, r2, #8 - moveq r0, #0 - beq 9b - /* finish off the remaining bytes */ - b 8b - -7: /* fix up the 2 pointers and fallthrough... */ - sub r1, r1, #2 - b 2b diff --git a/libc/arch-arm/bionic/memcpy.S b/libc/arch-arm/bionic/memcpy.S deleted file mode 100644 index fcb58cd..0000000 --- a/libc/arch-arm/bionic/memcpy.S +++ /dev/null @@ -1,387 +0,0 @@ -/* - * Copyright (C) 2008 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/cpu-features.h> - - .text - - .global memcpy - .type memcpy, %function - .align 4 - - /* - * Optimized memcpy() for ARM. - * - * note that memcpy() always returns the destination pointer, - * so we have to preserve R0. - */ - -memcpy: - /* The stack must always be 64-bits aligned to be compliant with the - * ARM ABI. Since we have to save R0, we might as well save R4 - * which we can use for better pipelining of the reads below - */ - .fnstart - .save {r0, r4, lr} - stmfd sp!, {r0, r4, lr} - /* Making room for r5-r11 which will be spilled later */ - .pad #28 - sub sp, sp, #28 - - // preload the destination because we'll align it to a cache line - // with small writes. Also start the source "pump". - PLD (r0, #0) - PLD (r1, #0) - PLD (r1, #32) - - /* it simplifies things to take care of len<4 early */ - cmp r2, #4 - blo copy_last_3_and_return - - /* compute the offset to align the source - * offset = (4-(src&3))&3 = -src & 3 - */ - rsb r3, r1, #0 - ands r3, r3, #3 - beq src_aligned - - /* align source to 32 bits. We need to insert 2 instructions between - * a ldr[b|h] and str[b|h] because byte and half-word instructions - * stall 2 cycles. - */ - movs r12, r3, lsl #31 - sub r2, r2, r3 /* we know that r3 <= r2 because r2 >= 4 */ - ldrmib r3, [r1], #1 - ldrcsb r4, [r1], #1 - ldrcsb r12,[r1], #1 - strmib r3, [r0], #1 - strcsb r4, [r0], #1 - strcsb r12,[r0], #1 - -src_aligned: - - /* see if src and dst are aligned together (congruent) */ - eor r12, r0, r1 - tst r12, #3 - bne non_congruent - - /* Use post-incriment mode for stm to spill r5-r11 to reserved stack - * frame. Don't update sp. - */ - stmea sp, {r5-r11} - - /* align the destination to a cache-line */ - rsb r3, r0, #0 - ands r3, r3, #0x1C - beq congruent_aligned32 - cmp r3, r2 - andhi r3, r2, #0x1C - - /* conditionnaly copies 0 to 7 words (length in r3) */ - movs r12, r3, lsl #28 - ldmcsia r1!, {r4, r5, r6, r7} /* 16 bytes */ - ldmmiia r1!, {r8, r9} /* 8 bytes */ - stmcsia r0!, {r4, r5, r6, r7} - stmmiia r0!, {r8, r9} - tst r3, #0x4 - ldrne r10,[r1], #4 /* 4 bytes */ - strne r10,[r0], #4 - sub r2, r2, r3 - -congruent_aligned32: - /* - * here source is aligned to 32 bytes. - */ - -cached_aligned32: - subs r2, r2, #32 - blo less_than_32_left - - /* - * We preload a cache-line up to 64 bytes ahead. On the 926, this will - * stall only until the requested world is fetched, but the linefill - * continues in the the background. - * While the linefill is going, we write our previous cache-line - * into the write-buffer (which should have some free space). - * When the linefill is done, the writebuffer will - * start dumping its content into memory - * - * While all this is going, we then load a full cache line into - * 8 registers, this cache line should be in the cache by now - * (or partly in the cache). - * - * This code should work well regardless of the source/dest alignment. - * - */ - - // Align the preload register to a cache-line because the cpu does - // "critical word first" (the first word requested is loaded first). - bic r12, r1, #0x1F - add r12, r12, #64 - -1: ldmia r1!, { r4-r11 } - PLD (r12, #64) - subs r2, r2, #32 - - // NOTE: if r12 is more than 64 ahead of r1, the following ldrhi - // for ARM9 preload will not be safely guarded by the preceding subs. - // When it is safely guarded the only possibility to have SIGSEGV here - // is because the caller overstates the length. - ldrhi r3, [r12], #32 /* cheap ARM9 preload */ - stmia r0!, { r4-r11 } - bhs 1b - - add r2, r2, #32 - - - - -less_than_32_left: - /* - * less than 32 bytes left at this point (length in r2) - */ - - /* skip all this if there is nothing to do, which should - * be a common case (if not executed the code below takes - * about 16 cycles) - */ - tst r2, #0x1F - beq 1f - - /* conditionnaly copies 0 to 31 bytes */ - movs r12, r2, lsl #28 - ldmcsia r1!, {r4, r5, r6, r7} /* 16 bytes */ - ldmmiia r1!, {r8, r9} /* 8 bytes */ - stmcsia r0!, {r4, r5, r6, r7} - stmmiia r0!, {r8, r9} - movs r12, r2, lsl #30 - ldrcs r3, [r1], #4 /* 4 bytes */ - ldrmih r4, [r1], #2 /* 2 bytes */ - strcs r3, [r0], #4 - strmih r4, [r0], #2 - tst r2, #0x1 - ldrneb r3, [r1] /* last byte */ - strneb r3, [r0] - - /* we're done! restore everything and return */ -1: ldmfd sp!, {r5-r11} - ldmfd sp!, {r0, r4, lr} - bx lr - - /********************************************************************/ - -non_congruent: - /* - * here source is aligned to 4 bytes - * but destination is not. - * - * in the code below r2 is the number of bytes read - * (the number of bytes written is always smaller, because we have - * partial words in the shift queue) - */ - cmp r2, #4 - blo copy_last_3_and_return - - /* Use post-incriment mode for stm to spill r5-r11 to reserved stack - * frame. Don't update sp. - */ - stmea sp, {r5-r11} - - /* compute shifts needed to align src to dest */ - rsb r5, r0, #0 - and r5, r5, #3 /* r5 = # bytes in partial words */ - mov r12, r5, lsl #3 /* r12 = right */ - rsb lr, r12, #32 /* lr = left */ - - /* read the first word */ - ldr r3, [r1], #4 - sub r2, r2, #4 - - /* write a partial word (0 to 3 bytes), such that destination - * becomes aligned to 32 bits (r5 = nb of words to copy for alignment) - */ - movs r5, r5, lsl #31 - strmib r3, [r0], #1 - movmi r3, r3, lsr #8 - strcsb r3, [r0], #1 - movcs r3, r3, lsr #8 - strcsb r3, [r0], #1 - movcs r3, r3, lsr #8 - - cmp r2, #4 - blo partial_word_tail - - /* Align destination to 32 bytes (cache line boundary) */ -1: tst r0, #0x1c - beq 2f - ldr r5, [r1], #4 - sub r2, r2, #4 - orr r4, r3, r5, lsl lr - mov r3, r5, lsr r12 - str r4, [r0], #4 - cmp r2, #4 - bhs 1b - blo partial_word_tail - - /* copy 32 bytes at a time */ -2: subs r2, r2, #32 - blo less_than_thirtytwo - - /* Use immediate mode for the shifts, because there is an extra cycle - * for register shifts, which could account for up to 50% of - * performance hit. - */ - - cmp r12, #24 - beq loop24 - cmp r12, #8 - beq loop8 - -loop16: - ldr r12, [r1], #4 -1: mov r4, r12 - ldmia r1!, { r5,r6,r7, r8,r9,r10,r11} - PLD (r1, #64) - subs r2, r2, #32 - ldrhs r12, [r1], #4 - orr r3, r3, r4, lsl #16 - mov r4, r4, lsr #16 - orr r4, r4, r5, lsl #16 - mov r5, r5, lsr #16 - orr r5, r5, r6, lsl #16 - mov r6, r6, lsr #16 - orr r6, r6, r7, lsl #16 - mov r7, r7, lsr #16 - orr r7, r7, r8, lsl #16 - mov r8, r8, lsr #16 - orr r8, r8, r9, lsl #16 - mov r9, r9, lsr #16 - orr r9, r9, r10, lsl #16 - mov r10, r10, lsr #16 - orr r10, r10, r11, lsl #16 - stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10} - mov r3, r11, lsr #16 - bhs 1b - b less_than_thirtytwo - -loop8: - ldr r12, [r1], #4 -1: mov r4, r12 - ldmia r1!, { r5,r6,r7, r8,r9,r10,r11} - PLD (r1, #64) - subs r2, r2, #32 - ldrhs r12, [r1], #4 - orr r3, r3, r4, lsl #24 - mov r4, r4, lsr #8 - orr r4, r4, r5, lsl #24 - mov r5, r5, lsr #8 - orr r5, r5, r6, lsl #24 - mov r6, r6, lsr #8 - orr r6, r6, r7, lsl #24 - mov r7, r7, lsr #8 - orr r7, r7, r8, lsl #24 - mov r8, r8, lsr #8 - orr r8, r8, r9, lsl #24 - mov r9, r9, lsr #8 - orr r9, r9, r10, lsl #24 - mov r10, r10, lsr #8 - orr r10, r10, r11, lsl #24 - stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10} - mov r3, r11, lsr #8 - bhs 1b - b less_than_thirtytwo - -loop24: - ldr r12, [r1], #4 -1: mov r4, r12 - ldmia r1!, { r5,r6,r7, r8,r9,r10,r11} - PLD (r1, #64) - subs r2, r2, #32 - ldrhs r12, [r1], #4 - orr r3, r3, r4, lsl #8 - mov r4, r4, lsr #24 - orr r4, r4, r5, lsl #8 - mov r5, r5, lsr #24 - orr r5, r5, r6, lsl #8 - mov r6, r6, lsr #24 - orr r6, r6, r7, lsl #8 - mov r7, r7, lsr #24 - orr r7, r7, r8, lsl #8 - mov r8, r8, lsr #24 - orr r8, r8, r9, lsl #8 - mov r9, r9, lsr #24 - orr r9, r9, r10, lsl #8 - mov r10, r10, lsr #24 - orr r10, r10, r11, lsl #8 - stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10} - mov r3, r11, lsr #24 - bhs 1b - - -less_than_thirtytwo: - /* copy the last 0 to 31 bytes of the source */ - rsb r12, lr, #32 /* we corrupted r12, recompute it */ - add r2, r2, #32 - cmp r2, #4 - blo partial_word_tail - -1: ldr r5, [r1], #4 - sub r2, r2, #4 - orr r4, r3, r5, lsl lr - mov r3, r5, lsr r12 - str r4, [r0], #4 - cmp r2, #4 - bhs 1b - -partial_word_tail: - /* we have a partial word in the input buffer */ - movs r5, lr, lsl #(31-3) - strmib r3, [r0], #1 - movmi r3, r3, lsr #8 - strcsb r3, [r0], #1 - movcs r3, r3, lsr #8 - strcsb r3, [r0], #1 - - /* Refill spilled registers from the stack. Don't update sp. */ - ldmfd sp, {r5-r11} - -copy_last_3_and_return: - movs r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */ - ldrmib r2, [r1], #1 - ldrcsb r3, [r1], #1 - ldrcsb r12,[r1] - strmib r2, [r0], #1 - strcsb r3, [r0], #1 - strcsb r12,[r0] - - /* we're done! restore sp and spilled registers and return */ - add sp, sp, #28 - ldmfd sp!, {r0, r4, lr} - bx lr - .fnend - diff --git a/libc/arch-arm/bionic/memset.S b/libc/arch-arm/bionic/memset.S deleted file mode 100644 index d52d622..0000000 --- a/libc/arch-arm/bionic/memset.S +++ /dev/null @@ -1,117 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ - .text - - .global memset - .type memset, %function - - .global bzero - .type bzero, %function - - .align - - /* - * Optimized memset() for ARM. - * - * memset() returns its first argument. - */ - -bzero: - mov r2, r1 - mov r1, #0 - -memset: - /* compute the offset to align the destination - * offset = (4-(src&3))&3 = -src & 3 - */ - .fnstart - .save {r0, r4-r7, lr} - stmfd sp!, {r0, r4-r7, lr} - rsb r3, r0, #0 - ands r3, r3, #3 - cmp r3, r2 - movhi r3, r2 - - /* splat r1 */ - mov r1, r1, lsl #24 - orr r1, r1, r1, lsr #8 - orr r1, r1, r1, lsr #16 - - movs r12, r3, lsl #31 - strcsb r1, [r0], #1 /* can't use strh (alignment unknown) */ - strcsb r1, [r0], #1 - strmib r1, [r0], #1 - subs r2, r2, r3 - ldmlsfd sp!, {r0, r4-r7, lr} /* return */ - bxls lr - - /* align the destination to a cache-line */ - mov r12, r1 - mov lr, r1 - mov r4, r1 - mov r5, r1 - mov r6, r1 - mov r7, r1 - - rsb r3, r0, #0 - ands r3, r3, #0x1C - beq aligned32 - cmp r3, r2 - andhi r3, r2, #0x1C - sub r2, r2, r3 - - /* conditionnaly writes 0 to 7 words (length in r3) */ - movs r3, r3, lsl #28 - stmcsia r0!, {r1, lr} - stmcsia r0!, {r1, lr} - stmmiia r0!, {r1, lr} - movs r3, r3, lsl #2 - strcs r1, [r0], #4 - -aligned32: - subs r2, r2, #32 - mov r3, r1 - bmi 2f -1: subs r2, r2, #32 - stmia r0!, {r1,r3,r4,r5,r6,r7,r12,lr} - bhs 1b -2: add r2, r2, #32 - - /* conditionnaly stores 0 to 31 bytes */ - movs r2, r2, lsl #28 - stmcsia r0!, {r1,r3,r12,lr} - stmmiia r0!, {r1, lr} - movs r2, r2, lsl #2 - strcs r1, [r0], #4 - strmih r1, [r0], #2 - movs r2, r2, lsl #2 - strcsb r1, [r0] - ldmfd sp!, {r0, r4-r7, lr} - bx lr - .fnend - diff --git a/libc/arch-arm/bionic/setjmp.S b/libc/arch-arm/bionic/setjmp.S deleted file mode 100644 index a9f6ea4..0000000 --- a/libc/arch-arm/bionic/setjmp.S +++ /dev/null @@ -1,136 +0,0 @@ -/* $OpenBSD: setjmp.S,v 1.2 2004/02/01 05:40:52 drahn Exp $ */ -/* $NetBSD: setjmp.S,v 1.5 2003/04/05 23:08:51 bjh21 Exp $ */ - -/* - * Copyright (c) 1997 Mark Brinicombe - * All rights reserved. - * - * 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 by Mark Brinicombe - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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> -#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) - /* Block all signals and retrieve the old signal mask */ - stmfd sp!, {r0, r14} - mov r0, #0x00000000 - - bl PIC_SYM(_C_LABEL(sigblock), PLT) - mov r1, r0 - - ldmfd sp!, {r0, r14} - - /* Store signal mask */ - str r1, [r0, #(25 * 4)] - - ldr r1, .Lsetjmp_magic - str r1, [r0], #4 - -#ifdef SOFTFLOAT - add r0, r0, #52 -#else - /* Store fp registers */ - sfm f4, 4, [r0], #48 - /* Store fpsr */ - rfs r1 - str r1, [r0], #0x0004 -#endif /*SOFTFLOAT*/ - /* Store integer registers */ - stmia r0, {r4-r14} - mov r0, #0x00000000 - bx lr - -.Lsetjmp_magic: - .word _JB_MAGIC_SETJMP - - -ENTRY(longjmp) - ldr r2, .Lsetjmp_magic - ldr r3, [r0] - teq r2, r3 - bne botch - - /* Fetch signal mask */ - ldr r2, [r0, #(25 * 4)] - - /* Set signal mask */ - stmfd sp!, {r0, r1, r14} - sub sp, sp, #4 /* align the stack */ - - mov r0, r2 - bl PIC_SYM(_C_LABEL(sigsetmask), PLT) - - add sp, sp, #4 /* unalign the stack */ - ldmfd sp!, {r0, r1, r14} - - add r0, r0, #4 -#ifdef SOFTFLOAT - add r0, r0, #52 -#else - /* Restore fp registers */ - lfm f4, 4, [r0], #48 - /* Restore FPSR */ - ldr r4, [r0], #0x0004 - wfs r4 -#endif /* SOFTFLOAT */ - /* Restore integer registers */ - ldmia r0, {r4-r14} - - /* Validate sp and r14 */ - teq sp, #0 - teqne r14, #0 - beq botch - - /* Set return value */ - - mov r0, r1 - teq r0, #0x00000000 - moveq r0, #0x00000001 - bx lr -#ifdef __ARM_26__ - mov r15, r14 -#else - mov r15, r14 -#endif - - /* validation failed, die die die. */ -botch: - bl PIC_SYM(_C_LABEL(longjmperror), PLT) - bl PIC_SYM(_C_LABEL(abort), PLT) - b . - 8 /* Cannot get here */ diff --git a/libc/arch-arm/bionic/sigsetjmp.S b/libc/arch-arm/bionic/sigsetjmp.S deleted file mode 100644 index 50e6429..0000000 --- a/libc/arch-arm/bionic/sigsetjmp.S +++ /dev/null @@ -1,62 +0,0 @@ -/* $OpenBSD: sigsetjmp.S,v 1.2 2004/02/01 05:40:52 drahn Exp $ */ -/* $NetBSD: sigsetjmp.S,v 1.3 2002/08/17 19:54:30 thorpej Exp $ */ - -/* - * Copyright (c) 1997 Mark Brinicombe - * All rights reserved. - * - * 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 by Mark Brinicombe - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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> -#include <machine/setjmp.h> - -/* - * C library -- sigsetjmp, siglongjmp - * - * longjmp(a,v) - * will generate a "return(v)" from the last call to - * setjmp(a, m) - * by restoring registers from the stack. - * The previous signal state is restored. - */ - -ENTRY(sigsetjmp) - teq r1, #0 - beq PIC_SYM(_C_LABEL(_setjmp), PLT) - b PIC_SYM(_C_LABEL(setjmp), PLT) - -.L_setjmp_magic: - .word _JB_MAGIC__SETJMP - -ENTRY(siglongjmp) - ldr r2, .L_setjmp_magic - ldr r3, [r0] - teq r2, r3 - beq PIC_SYM(_C_LABEL(_longjmp), PLT) - b PIC_SYM(_C_LABEL(longjmp), PLT) diff --git a/libc/arch-arm/bionic/strlen.c b/libc/arch-arm/bionic/strlen.c deleted file mode 100644 index 01632e3..0000000 --- a/libc/arch-arm/bionic/strlen.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright (C) 2008 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 <string.h> -#include <stdint.h> -#include <machine/cpu-features.h> - -size_t strlen(const char *s) -{ - __builtin_prefetch(s); - __builtin_prefetch(s+32); - - union { - const char *b; - const uint32_t *w; - uintptr_t i; - } u; - - // these are some scratch variables for the asm code below - uint32_t v, t; - - // initialize the string length to zero - size_t l = 0; - - // align the pointer to a 32-bit word boundary - u.b = s; - while (u.i & 0x3) { - if (__builtin_expect(*u.b++ == 0, 0)) { - goto done; - } - l++; - } - - // loop for each word, testing if it contains a zero byte - // if so, exit the loop and update the length. - // We need to process 32 bytes per loop to schedule PLD properly - // and achieve the maximum bus speed. - asm( - "ldr %[v], [ %[s] ], #4 \n" - "sub %[l], %[l], %[s] \n" - "0: \n" -#if __ARM_HAVE_PLD - "pld [ %[s], #64 ] \n" -#endif - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" -#if !defined(__OPTIMIZE_SIZE__) - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" - "bne 1f \n" - "sub %[t], %[v], %[mask], lsr #7\n" - "and %[t], %[t], %[mask] \n" - "bics %[t], %[t], %[v] \n" - "ldreq %[v], [ %[s] ], #4 \n" -#endif - "beq 0b \n" - "1: \n" - "add %[l], %[l], %[s] \n" - "tst %[v], #0xFF \n" - "beq 2f \n" - "add %[l], %[l], #1 \n" - "tst %[v], #0xFF00 \n" - "beq 2f \n" - "add %[l], %[l], #1 \n" - "tst %[v], #0xFF0000 \n" - "addne %[l], %[l], #1 \n" - "2: \n" - : [l]"=&r"(l), [v]"=&r"(v), [t]"=&r"(t), [s]"=&r"(u.b) - : "%[l]"(l), "%[s]"(u.b), [mask]"r"(0x80808080UL) - : "cc" - ); - -done: - return l; -} diff --git a/libc/arch-arm/bionic/syscall.S b/libc/arch-arm/bionic/syscall.S deleted file mode 100644 index ada12a6..0000000 --- a/libc/arch-arm/bionic/syscall.S +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (C) 2008 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 <sys/linux-syscalls.h> - - - .text - .align 4 - .type syscall,#function - .globl syscall - - .text - .align - -#if __ARM_EABI__ - -syscall: - mov ip, sp - stmfd sp!, {r4, r5, r6, r7} - mov r7, r0 - mov r0, r1 - mov r1, r2 - mov r2, r3 - ldmfd ip, {r3, r4, r5, r6} - swi #0 - ldmfd sp!, {r4, r5, r6, r7} - movs r0, r0 - bxpl lr - b __set_syscall_errno - -#else - -#ifndef __NR_syscall -#define __NR_syscall 113 -#endif - -syscall: - stmfd sp!, {r4, r5, lr} - ldr r4, [sp, #12] - ldr r5, [sp, #16] - swi __NR_syscall - ldmfd sp!, {r4, r5, lr} - movs r0, r0 - bxpl lr - b __set_syscall_errno - -#endif diff --git a/libc/arch-arm/bionic/tkill.S b/libc/arch-arm/bionic/tkill.S deleted file mode 100644 index 7b3301a..0000000 --- a/libc/arch-arm/bionic/tkill.S +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -/* unlike our auto-generated syscall stubs, this code saves lr - on the stack, as well as a few other registers. this makes - our stack unwinder happy, when we generate debug stack - traces after the C library or other parts of the system - abort due to a fatal runtime error (e.g. detection - of a corrupted malloc heap). -*/ -#include <sys/linux-syscalls.h> - -#ifndef __NR_tkill -#define __NR_tkill 238 -#endif - - .text - .type tkill, #function - .globl tkill - .align 4 - -tkill: - stmfd sp!, {r4-r7, ip, lr} - ldr r7, =__NR_tkill - swi #0 - ldmfd sp!, {r4-r7, ip, lr} - movs r0, r0 - bxpl lr - b __set_syscall_errno |