A few stragglers were missing from bc401f6aac22. I really don’t know how
that’s possible, since I thought I was testing it with the correct SDK.
I guess I wasn’t.
BUG=crashpad:11
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/978883007
The 10.10 SDK deprecates <launch.h>, but this file is still useful and
is used by util/mac/launchd.* and util/mac/service_management.*. Wrap
the <launch.h> functions in versions that ignore the deprecation
warnings.
BUG=crashpad:10
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/989733003
Also, move ProcessArgumentsForPID() into ProcessInfo.
This change prepares for a TaskForPID() implementation that’s capable of
operating correctly in a setuid root executable. TaskForPID() belongs in
util/mach, but for its permission checks, it must access some process
properties that were previously fetched by ProcessReader in snapshot.
util can’t depend on snapshot. The generic util-safe process information
bits (Is64Bit(), ProcessID(), ParentProcessID(), and StartTime()) are
moved from ProcessReader to ProcessInfo (in util), where the current
ProcessReader can use it (as it’s OK for snapshot to depend on util),
and the future TaskForPID() in util can also use it. ProcessInfo also
contains other methods that TaskForPID() will use, providing access to
the credentials that the target process holds. ProcessArgumentsForPID()
is related, and is also now a part of ProcessInfo.
TEST=snapshot_test, util_test
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/727973002
implicit_cast<> only performs a cast in cases where an implicit
conversion would be possible. It’s even safer than static_cast<> It’s an
“explicit implicit” cast, which is not normally necsesary, but is
frequently required when working with the ?: operator, functions like
std::min() and std::max(), and logging and testing macros.
The public style guide does not mention implicit_cast<> only because it
is not part of the standard library, but would otherwise require it in
these situations. Since base does provide implicit_cast<>, it should be
used whenever possible.
The only uses of static_cast<> not converted to implicit_cast<> are
those that require static_cast<>, such as those that assign an integer
constant to a variable of an enum type.
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/700383007
This change was generated mechanically by running:
find . \( -name \*.cc -or -name \*.mm -or -name \*.h \) \
-and -not -path ./third_party/\* -and -not -path ./out/\* \
-exec sed -i '' -E -e 's/(^|[^_])NULL/\1nullptr/g' {} +
Further manual fix-ups were applied to remove casts of nullptr to other
pointer types where possible, to preserve the intentional use of NULL
(as a short form of MACH_PORT_NULL) in exception_port_tool, and to fix
80-column violations.
https://groups.google.com/a/chromium.org/d/topic/chromium-dev/4mijeJHzxLg/discussion
TEST=*_test
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/656703002
This uses THREAD_NULL, TASK_NULL, and HOST_NULL in preference to
MACH_PORT_NULL and kMachPortNull. These constants are correctly-typed
(thread_t, task_t, and host_t) and result in more readable source code,
especially where thread and task parameters appear together as they do
in exc_*_variants.
TEST=util_test
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/649713002
ExpectProcessIsRunning() goes to a lot of trouble to deal with the flaky
{CTL_KERN, KERN_PROCARGS2} API exposed by ProcessArgumentsForPID(). It
retries that call inside an inner loop until it succeeds, because it may
fail while a process is mid-exec(). Once it succeeds, it should use the
argv it obtained. Waiting for success and then attempting to call
ProcessArgumentsForPID() again to get argv can be flaky when the first
attempt succeeds because it’s pre-exec(), and the second one catches the
process in the middle of the exec() and fails.
The existence of the inner loop was intended to protect against this
problem, and the subsequent call outside of the inner loop appears to be
left behind from before the inner loop existed. It should have been
removed when the inner loop was added.
TEST=util_test ServiceManagement.SubmitRemoveJob
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/644473005
This includes ClockMonotonicNanoseconds() and SleepNanoseconds().
SleepNanoseconds() is like base::PlatformThread::Sleep(), but
PlatformThread is not in mini_chromium and I’m not keen on adding it
because I’m not sold on the interface. I’m not convinced Sleep() belongs
there, and I don’t want to have to bring all of base::Time* along for
the ride.
TEST=util_test Clock.*:MachMessageServer.*:ServiceManagement.*
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/597533002
This reverts commit 63fd3ae47d2513ef4390c3d8c0dde3fa95152480.
SMJobRemove() still performs a 1-second sleep() when its |wait|
parameter is true. Radar 18398683 is filed. In the mean time, the
launchd-based implementation of these functions does not have this
undesirable property.
The comments have been revised to not reflect operating systems before
Mac OS X 10.6. Comments describing bugs in earlier 10.10 seeds that have
since been fixed have been removed.
TEST=util_test Launchd.*:ServiceManagement.*
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/579083003
On 10.6, the main executable does not show up at index 0, but appears
elsewhere in the list. Modules are now scanned to ensure that the
MH_EXECUTE one is first in the list. This means that ProcessReader is
now responsible for creating a MachOImageReader object for each module,
rather than having its callers perform that task.
TEST=util_test MachOImageReader.*:ProcessReader.*
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/586123002
exception handler ports.
task_t, thread_t, and exception_handler_t are typedefs for mach_port_t.
They are more descriptive than mach_port_t, and are already in use in
exc_server_variants.
TEST=util_test
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/577293002
This also puts kMachExceptionCodes into mach_extensions.h, because a
form of MACH_EXCEPTION_CODES that’s the right type
(exception_behavior_t) has now shown its use in more than one file.
TEST=util_test ExcClientVariants.UniversalExceptionRaise
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/567283002
MachOImageSymbolTableReader.
This results in a speed boost for MachOImageSymbolTableReader because
it’s able to read the entire string table in one operation, rather than
reading each string from the remote process individually. Copying is
also reduced. In a debug-mode build on my laptop, util_test
MachOImageReader.* has improved from ~1400ms to ~1000ms.
TEST=util_test TaskMemory.*:MachOImageReader.*
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/558313002
This is part of a family of classes whose chief entry point is
MachOImageReader. MachOImageReader depends on this class to read
segments, so this one is landing first. The bulk of this class will be
tested as part of MachOImageReader.
TEST=util_test MachOImageSegmentReader.*
R=rsesek@chromium.org
Review URL: https://codereview.chromium.org/516983003
