Lev Rumyantsev | c6f684a | 2020-06-19 16:53:08 -0700 | [diff] [blame] | 1 | // |
| 2 | // Copyright (C) 2017 The Android Open Source Project |
| 3 | // |
| 4 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | // you may not use this file except in compliance with the License. |
| 6 | // You may obtain a copy of the License at |
| 7 | // |
| 8 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | // |
| 10 | // Unless required by applicable law or agreed to in writing, software |
| 11 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | // See the License for the specific language governing permissions and |
| 14 | // limitations under the License. |
| 15 | // |
| 16 | |
| 17 | .text |
| 18 | .globl native_bridge_trace |
| 19 | .type native_bridge_trace, #function |
| 20 | native_bridge_trace: |
| 21 | ldr r3, =0 |
| 22 | bx r3 |
| 23 | |
| 24 | .text |
Evgeny Eltsin | 1b935b1 | 2020-08-01 15:20:43 +0200 | [diff] [blame] | 25 | .globl native_bridge_intercept_symbol |
| 26 | .type native_bridge_intercept_symbol, #function |
| 27 | native_bridge_intercept_symbol: |
Lev Rumyantsev | c6f684a | 2020-06-19 16:53:08 -0700 | [diff] [blame] | 28 | ldr r3, =0 |
| 29 | bx r3 |
| 30 | |
| 31 | .text |
| 32 | .globl native_bridge_post_init |
| 33 | .type native_bridge_post_init, #function |
| 34 | native_bridge_post_init: |
| 35 | ldr r3, =0 |
| 36 | bx r3 |
| 37 | |
| 38 | .text |
| 39 | // Symbol to set guest return address to when guest function is called from the runtime. |
| 40 | // Provides unwind info that corresponds to ScopedHostCallFrame. |
| 41 | // Provides 1 readable insn before and 2 after. |
| 42 | // TODO(eaeltsin): may be change insns to what actual signal frame unwinder expects? |
| 43 | // See bionic/libc/arch-arm/bionic/__restore.S |
| 44 | .text |
| 45 | .fnstart |
| 46 | .save {r4, r5, lr, pc} |
| 47 | .movsp r4 |
| 48 | nop |
| 49 | .globl native_bridge_call_guest |
| 50 | .type native_bridge_call_guest, #function |
| 51 | native_bridge_call_guest: |
| 52 | nop |
| 53 | nop |
| 54 | ldr r3, =0 |
| 55 | bx r3 |
| 56 | .fnend |