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Merge "Delete obsolete debuggerd references." am: 1193f3bff6

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Josh Gao 2017-10-28 01:19:04 +00:00 • committed by android-build-merger
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190
debuggerd/NOTICE
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@ -1,190 +0,0 @@
Copyright (c) 2005-2008, 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.
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.
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
"Licensor" shall mean the copyright owner or entity authorized by
the copyright owner that is granting the License.
"Legal Entity" shall mean the union of the acting entity and all
other entities that control, are controlled by, or are under common
control with that entity. For the purposes of this definition,
"control" means (i) the power, direct or indirect, to cause the
direction or management of such entity, whether by contract or
otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
"Source" form shall mean the preferred form for making modifications,
including but not limited to software source code, documentation
source, and configuration files.
"Object" form shall mean any form resulting from mechanical
transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
(an example is provided in the Appendix below).
"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
editorial revisions, annotations, elaborations, or other modifications
represent, as a whole, an original work of authorship. For the purposes
of this License, Derivative Works shall not include works that remain
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"Contribution" shall mean any work of authorship, including
the original version of the Work and any modifications or additions
to that Work or Derivative Works thereof, that is intentionally
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means any form of electronic, verbal, or written communication sent
to the Licensor or its representatives, including but not limited to
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
on behalf of whom a Contribution has been received by Licensor and
subsequently incorporated within the Work.
2. Grant of Copyright License. Subject to the terms and conditions of
this License, each Contributor hereby grants to You a perpetual,
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright license to reproduce, prepare Derivative Works of,
publicly display, publicly perform, sublicense, and distribute the
Work and such Derivative Works in Source or Object form.
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this License, each Contributor hereby grants to You a perpetual,
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(except as stated in this section) patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Work,
where such license applies only to those patent claims licensable
by such Contributor that are necessarily infringed by their
Contribution(s) alone or by combination of their Contribution(s)
with the Work to which such Contribution(s) was submitted. If You
institute patent litigation against any entity (including a
cross-claim or counterclaim in a lawsuit) alleging that the Work
or a Contribution incorporated within the Work constitutes direct
or contributory patent infringement, then any patent licenses
granted to You under this License for that Work shall terminate
as of the date such litigation is filed.
4. Redistribution. You may reproduce and distribute copies of the
Work or Derivative Works thereof in any medium, with or without
modifications, and in Source or Object form, provided that You
meet the following conditions:
(a) You must give any other recipients of the Work or
Derivative Works a copy of this License; and
(b) You must cause any modified files to carry prominent notices
stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
that You distribute, all copyright, patent, trademark, and
attribution notices from the Source form of the Work,
excluding those notices that do not pertain to any part of
the Derivative Works; and
(d) If the Work includes a "NOTICE" text file as part of its
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include a readable copy of the attribution notices contained
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of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
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or as an addendum to the NOTICE text from the Work, provided
that such additional attribution notices cannot be construed
as modifying the License.
You may add Your own copyright statement to Your modifications and
may provide additional or different license terms and conditions
for use, reproduction, or distribution of Your modifications, or
for any such Derivative Works as a whole, provided Your use,
reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
this License, without any additional terms or conditions.
Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
with Licensor regarding such Contributions.
6. Trademarks. This License does not grant permission to use the trade
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unless required by applicable law (such as deliberate and grossly
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END OF TERMS AND CONDITIONS

183
debuggerd/signal_sender.cpp
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@ -1,183 +0,0 @@
/*
* Copyright (C) 2016 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.
*/
#define LOG_TAG "debuggerd-signal"
#include <errno.h>
#include <pthread.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <log/log.h>
#include "signal_sender.h"
static int signal_fd = -1;
static pid_t signal_pid;
struct signal_message {
pid_t pid;
pid_t tid;
int signal;
};
static void set_signal_sender_process_name() {
#if defined(__LP64__)
static constexpr char long_process_name[] = "debuggerd64:signaller";
static constexpr char short_process_name[] = "debuggerd64:sig";
static_assert(sizeof(long_process_name) <= sizeof("/system/bin/debuggerd64"), "");
#else
static constexpr char long_process_name[] = "debuggerd:signaller";
static constexpr char short_process_name[] = "debuggerd:sig";
static_assert(sizeof(long_process_name) <= sizeof("/system/bin/debuggerd"), "");
#endif
// pthread_setname_np has a maximum length of 16 chars, including null terminator.
static_assert(sizeof(short_process_name) <= 16, "");
pthread_setname_np(pthread_self(), short_process_name);
char* progname = const_cast<char*>(getprogname());
if (strlen(progname) <= strlen(long_process_name)) {
ALOGE("debuggerd: unexpected progname %s", progname);
return;
}
memset(progname, 0, strlen(progname));
strcpy(progname, long_process_name);
}
// Fork a process to send signals for the worker processes to use after they've dropped privileges.
bool start_signal_sender() {
if (signal_pid != 0) {
ALOGE("debuggerd: attempted to start signal sender multiple times");
return false;
}
int sfd[2];
if (socketpair(AF_UNIX, SOCK_SEQPACKET | SOCK_CLOEXEC, 0, sfd) != 0) {
ALOGE("debuggerd: failed to create socketpair for signal sender: %s", strerror(errno));
return false;
}
pid_t parent = getpid();
pid_t fork_pid = fork();
if (fork_pid == -1) {
ALOGE("debuggerd: failed to initialize signal sender: fork failed: %s", strerror(errno));
return false;
} else if (fork_pid == 0) {
close(sfd[1]);
set_signal_sender_process_name();
while (true) {
signal_message msg;
int rc = TEMP_FAILURE_RETRY(read(sfd[0], &msg, sizeof(msg)));
if (rc < 0) {
ALOGE("debuggerd: signal sender failed to read from socket");
break;
} else if (rc != sizeof(msg)) {
ALOGE("debuggerd: signal sender read unexpected number of bytes: %d", rc);
break;
}
// Report success after sending a signal
int err = 0;
if (msg.tid > 0) {
if (syscall(SYS_tgkill, msg.pid, msg.tid, msg.signal) != 0) {
err = errno;
}
} else {
if (kill(msg.pid, msg.signal) != 0) {
err = errno;
}
}
if (TEMP_FAILURE_RETRY(write(sfd[0], &err, sizeof(err))) < 0) {
ALOGE("debuggerd: signal sender failed to write: %s", strerror(errno));
}
}
// Our parent proably died, but if not, kill them.
if (getppid() == parent) {
kill(parent, SIGKILL);
}
_exit(1);
} else {
close(sfd[0]);
signal_fd = sfd[1];
signal_pid = fork_pid;
return true;
}
}
bool stop_signal_sender() {
if (signal_pid <= 0) {
return false;
}
if (kill(signal_pid, SIGKILL) != 0) {
ALOGE("debuggerd: failed to kill signal sender: %s", strerror(errno));
return false;
}
close(signal_fd);
signal_fd = -1;
int status;
waitpid(signal_pid, &status, 0);
signal_pid = 0;
return true;
}
bool send_signal(pid_t pid, pid_t tid, int signal) {
if (signal_fd == -1) {
ALOGE("debuggerd: attempted to send signal before signal sender was started");
errno = EHOSTUNREACH;
return false;
}
signal_message msg = {.pid = pid, .tid = tid, .signal = signal };
if (TEMP_FAILURE_RETRY(write(signal_fd, &msg, sizeof(msg))) < 0) {
ALOGE("debuggerd: failed to send message to signal sender: %s", strerror(errno));
errno = EHOSTUNREACH;
return false;
}
int response;
ssize_t rc = TEMP_FAILURE_RETRY(read(signal_fd, &response, sizeof(response)));
if (rc == 0) {
ALOGE("debuggerd: received EOF from signal sender");
errno = EHOSTUNREACH;
return false;
} else if (rc < 0) {
ALOGE("debuggerd: failed to receive response from signal sender: %s", strerror(errno));
errno = EHOSTUNREACH;
return false;
}
if (response == 0) {
return true;
}
errno = response;
return false;
}

1
rootdir/Android.mk
View file

@ -62,7 +62,6 @@ SANITIZE_ASAN_OPTIONS_FOR := \
cameraserver \ cameraserver \
cnd \ cnd \
debuggerd \ debuggerd \
debuggerd64 \
dex2oat \ dex2oat \
drmserver \ drmserver \
fingerprintd \ fingerprintd \