| // Copyright (C) 2015 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| .macro store_reg x, y |
| movq \x, %nacl:\y(%r15, %rdi) |
| .endm |
| |
| #define retq naclret |
| |
| |
| // void BionicInternalSaveRegContext(uint64_t[17]) |
| // Saves register context necessary for traversing the stack in a minidump. |
| .global BionicInternalSaveRegContext |
| .type BionicInternalSaveRegContext, @function |
| BionicInternalSaveRegContext: |
| .cfi_startproc |
| |
| // The ordering matches the one specified in ucontext.h. |
| store_reg %r8, 0x00 |
| store_reg %r9, 0x08 |
| store_reg %r10, 0x10 |
| store_reg %r11, 0x18 |
| store_reg %r12, 0x20 |
| store_reg %r13, 0x28 |
| store_reg %r14, 0x30 |
| store_reg %r15, 0x38 |
| store_reg %rdi, 0x40 |
| store_reg %rsi, 0x48 |
| store_reg %rbp, 0x50 |
| store_reg %rbx, 0x58 |
| store_reg %rdx, 0x60 |
| store_reg %rax, 0x68 |
| store_reg %rcx, 0x70 |
| |
| // Store caller's RSP. |
| leaq 8(%rsp), %rax |
| store_reg %rax, 0x78 |
| |
| // Store caller's RIP. |
| movq 0(%rsp), %rax |
| store_reg %rax, 0x80 |
| |
| retq |
| |
| .cfi_endproc |
| .size BionicInternalSaveRegContext, . - BionicInternalSaveRegContext |
| |
| .section .note.GNU-stack, "", @progbits |
