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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:48 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:48 -0800 |
commit | 3bbe5328cd738976443822502e23fb3971c5f87b (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /qemu_tracing | |
parent | 1c83481e3c1a4e0df017147fdfa7d856dd3012ed (diff) | |
download | hardware_libhardware_legacy-3bbe5328cd738976443822502e23fb3971c5f87b.zip hardware_libhardware_legacy-3bbe5328cd738976443822502e23fb3971c5f87b.tar.gz hardware_libhardware_legacy-3bbe5328cd738976443822502e23fb3971c5f87b.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'qemu_tracing')
-rw-r--r-- | qemu_tracing/Android.mk | 4 | ||||
-rw-r--r-- | qemu_tracing/qemu_tracing.c | 86 |
2 files changed, 0 insertions, 90 deletions
diff --git a/qemu_tracing/Android.mk b/qemu_tracing/Android.mk deleted file mode 100644 index 8c5bab0..0000000 --- a/qemu_tracing/Android.mk +++ /dev/null @@ -1,4 +0,0 @@ -# Copyright 2007 The Android Open Source Project - -LOCAL_SRC_FILES += qemu_tracing/qemu_tracing.c - diff --git a/qemu_tracing/qemu_tracing.c b/qemu_tracing/qemu_tracing.c deleted file mode 100644 index 847102c..0000000 --- a/qemu_tracing/qemu_tracing.c +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright (C) 2008 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. - */ -#include <stdio.h> -#include <string.h> -#include <errno.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <fcntl.h> -#include <unistd.h> - -// This is the pathname to the sysfs file that enables and disables -// tracing on the qemu emulator. -#define SYS_QEMU_TRACE_STATE "/sys/qemu_trace/state" - - -// This is the pathname to the sysfs file that adds new (address, symbol) -// pairs to the trace. -#define SYS_QEMU_TRACE_SYMBOL "/sys/qemu_trace/symbol" - -// The maximum length of a symbol name -#define MAX_SYMBOL_NAME_LENGTH (4 * 1024) - -// Allow space in the buffer for the address plus whitespace. -#define MAX_BUF_SIZE (MAX_SYMBOL_NAME_LENGTH + 20) - -// return 0 on success, or an error if the qemu driver cannot be opened -int qemu_start_tracing() -{ - int fd = open(SYS_QEMU_TRACE_STATE, O_WRONLY); - if (fd < 0) - return fd; - write(fd, "1\n", 2); - close(fd); - return 0; -} - -int qemu_stop_tracing() -{ - int fd = open(SYS_QEMU_TRACE_STATE, O_WRONLY); - if (fd < 0) - return fd; - write(fd, "0\n", 2); - close(fd); - return 0; -} - -int qemu_add_mapping(unsigned int addr, const char *name) -{ - char buf[MAX_BUF_SIZE]; - - if (strlen(name) > MAX_SYMBOL_NAME_LENGTH) - return EINVAL; - int fd = open(SYS_QEMU_TRACE_SYMBOL, O_WRONLY); - if (fd < 0) - return fd; - sprintf(buf, "%x %s\n", addr, name); - write(fd, buf, strlen(buf)); - close(fd); - return 0; -} - -int qemu_remove_mapping(unsigned int addr) -{ - char buf[MAX_BUF_SIZE]; - - int fd = open(SYS_QEMU_TRACE_SYMBOL, O_WRONLY); - if (fd < 0) - return fd; - sprintf(buf, "%x\n", addr); - write(fd, buf, strlen(buf)); - close(fd); - return 0; -} |