1 /* 2 * Copyright (C) 2015 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 /* 18 * Implements ADB tracing inside the emulator. 19 */ 20 21 #include <stdarg.h> 22 23 #include "sysdeps.h" 24 #include "qemu_tracing.h" 25 26 /* 27 * Redefine open and write for qemu_pipe.h that contains inlined references 28 * to those routines. We will redifine them back after qemu_pipe.h inclusion. 29 */ 30 31 #undef open 32 #undef write 33 #define open adb_open 34 #define write adb_write 35 #include <hardware/qemu_pipe.h> 36 #undef open 37 #undef write 38 #define open ___xxx_open 39 #define write ___xxx_write 40 41 /* A handle to adb-debug qemud service in the emulator. */ 42 int adb_debug_qemu = -1; 43 44 /* Initializes connection with the adb-debug qemud service in the emulator. */ 45 int adb_qemu_trace_init(void) 46 { 47 char con_name[32]; 48 49 if (adb_debug_qemu >= 0) { 50 return 0; 51 } 52 53 /* adb debugging QEMUD service connection request. */ 54 snprintf(con_name, sizeof(con_name), "qemud:adb-debug"); 55 adb_debug_qemu = qemu_pipe_open(con_name); 56 return (adb_debug_qemu >= 0) ? 0 : -1; 57 } 58 59 void adb_qemu_trace(const char* fmt, ...) 60 { 61 va_list args; 62 va_start(args, fmt); 63 char msg[1024]; 64 65 if (adb_debug_qemu >= 0) { 66 vsnprintf(msg, sizeof(msg), fmt, args); 67 adb_write(adb_debug_qemu, msg, strlen(msg)); 68 } 69 } 70
