diff options
Diffstat (limited to 'libc/arch-arm64/bionic/_setjmp.S')
| -rw-r--r-- | libc/arch-arm64/bionic/_setjmp.S | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/libc/arch-arm64/bionic/_setjmp.S b/libc/arch-arm64/bionic/_setjmp.S deleted file mode 100644 index 3836899..0000000 --- a/libc/arch-arm64/bionic/_setjmp.S +++ /dev/null @@ -1,111 +0,0 @@ -/* - * 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 <private/bionic_asm.h> -#include <machine/setjmp.h> - -/* - * C library - _setjmp, _longjmp - * - * _longjmp(jmp_buf state, int value) - * will generate a "return(v)" from the last call to _setjmp(state) by restoring - * registers from the stack. The previous signal state is NOT restored. - * - * NOTE: x0 return value - * x9-x15 temporary registers - */ - -ENTRY(_setjmp) - /* store magic number */ - ldr w9, .L_setjmp_magic - str w9, [x0, #(_JB_MAGIC * 4)] - - /* store core registers */ - mov x10, sp - stp x30, x10, [x0, #(_JB_CORE_BASE * 4 + 16 * 0)] - stp x28, x29, [x0, #(_JB_CORE_BASE * 4 + 16 * 1)] - stp x26, x27, [x0, #(_JB_CORE_BASE * 4 + 16 * 2)] - stp x24, x25, [x0, #(_JB_CORE_BASE * 4 + 16 * 3)] - stp x22, x23, [x0, #(_JB_CORE_BASE * 4 + 16 * 4)] - stp x20, x21, [x0, #(_JB_CORE_BASE * 4 + 16 * 5)] - str x19, [x0, #(_JB_CORE_BASE * 4 + 16 * 6)] - - /* store floating point registers */ - stp d14, d15, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 0)] - stp d12, d13, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 1)] - stp d10, d11, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 2)] - stp d8, d9, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 3)] - - mov w0, wzr - ret -END(_setjmp) - -.L_setjmp_magic: - .word _JB_MAGIC__SETJMP - -ENTRY(_longjmp) - /* check magic */ - ldr w9, .L_setjmp_magic - ldr w10, [x0, #(_JB_MAGIC * 4)] - cmp w9, w10 - b.ne .L_fail - - /* restore core registers */ - ldp x30, x10, [x0, #(_JB_CORE_BASE * 4 + 16 * 0)] - mov sp, x10 - ldp x28, x29, [x0, #(_JB_CORE_BASE * 4 + 16 * 1)] - ldp x26, x27, [x0, #(_JB_CORE_BASE * 4 + 16 * 2)] - ldp x24, x25, [x0, #(_JB_CORE_BASE * 4 + 16 * 3)] - ldp x22, x23, [x0, #(_JB_CORE_BASE * 4 + 16 * 4)] - ldp x20, x21, [x0, #(_JB_CORE_BASE * 4 + 16 * 5)] - ldr x19, [x0, #(_JB_CORE_BASE * 4 + 16 * 6)] - - /* restore floating point registers */ - ldp d14, d15, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 0)] - ldp d12, d13, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 1)] - ldp d10, d11, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 2)] - ldp d8, d9, [x0, #(_JB_FLOAT_BASE * 4 + 16 * 3)] - - /* validate sp (sp mod 16 = 0) and lr (lr mod 4 = 0) */ - tst x30, #3 - b.ne .L_fail - mov x10, sp - tst x10, #15 - b.ne .L_fail - - /* set return value */ - cmp w1, wzr - csinc w0, w1, wzr, ne - ret - - /* validation failed, die die die */ -.L_fail: - bl PIC_SYM(longjmperror, PLT) - bl PIC_SYM(abort, PLT) - b . - 8 /* Cannot get here */ -END(_longjmp) |