| Commit message (Collapse) | Author | Age | Files | Lines |
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This relands fd0a0d2b7ae9dd3d8a02b6a12e7941f7189fbb6c which was reverted
in 5dad29423e62292c6ff468cabfee4422ba55b18b, with a fix for guarding
kMaxSuffixLength which only used in assert()s with macros which breaks
chromium.mac/ios-device.
Change-Id: I5ee21b7f290517d6e7a0ef90b693b97f92392549
Reviewed-on: https://chromium-review.googlesource.com/751922
Reviewed-by: Mark Mentovai <mark@chromium.org>
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On tvOS, the app fails to shutdown after write.
Allow exit_after_write to be false for tvOS in order to force an exit() after write.
Change-Id: Ib2e1e1d03264a2972f5607b3070f4a6287aa0a98
Reviewed-on: https://chromium-review.googlesource.com/752071
Reviewed-by: Mark Mentovai <mark@chromium.org>
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usages in client/ios/Breakpad.mm."
This reverts commit fd0a0d2b7ae9dd3d8a02b6a12e7941f7189fbb6c.
Reason for revert: Build failures reported at https://chromium-review.googlesource.com/c/chromium/src/+/750591#message-cc4f7dd486fa1da7373ad5d83d56f550d607d429
Failed build on chromium.mac/ios-device: https://build.chromium.org/p/chromium.mac/builders/ios-device/builds/73163, https://logs.chromium.org/v/?s=chromium%2Fbb%2Fchromium.mac%2Fios-device%2F73163%2F%2B%2Frecipes%2Fsteps%2Fcompile%2F0%2Fstdout
[637/3593] CXX obj/third_party/breakpad/client/long_string_dictionary.o
FAILED: obj/third_party/breakpad/client/long_string_dictionary.o
[…]
../../third_party/breakpad/breakpad/src/common/long_string_dictionary.cc:46:16: error: unused variable 'kMaxSuffixLength' [-Werror,-Wunused-const-variable]
const size_t kMaxSuffixLength = 4;
^
1 error generated.
[…]
[641/3593] CXX ios_clang_arm64/obj/third_party/breakpad/client/long_string_dictionary.o
FAILED: ios_clang_arm64/obj/third_party/breakpad/client/long_string_dictionary.o
../../third_party/breakpad/breakpad/src/common/long_string_dictionary.cc:46:16: error: unused variable 'kMaxSuffixLength' [-Werror,-Wunused-const-variable]
const size_t kMaxSuffixLength = 4;
^
1 error generated.
Change-Id: I285eaac6abfcb7d173a0d1e4998b92d5c8dd6ecb
Reviewed-on: https://chromium-review.googlesource.com/751723
Reviewed-by: Mark Mentovai <mark@chromium.org>
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As of Android API level 16 tgkill is declared in the NDK version of
signal.h, which conflicts with the static definition found in
src/client/linux/handler/exception_handler.cc. This change removes
the static tgkill definition and replaces its use with sys_tgkill
from the linux syscall support library.
Bug:
Change-Id: Ic70addd8a064cfa36345d86b7e36409e2089e909
Reviewed-on: https://chromium-review.googlesource.com/738912
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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client/ios/Breakpad.mm.
Bug:
Change-Id: I401028f5d90417d79fb109b510aaa9660a039b44
Reviewed-on: https://chromium-review.googlesource.com/688301
Reviewed-by: Mark Mentovai <mark@chromium.org>
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If the mapping for the main executable needed to be merged (for
example, if it was linked with lld and therefore contains an r mapping
followed by an r/x mapping), we would never reach the code that makes
it the first module. Handle that situation by moving that code into
a separate loop.
This fixes an issue where breakpad_unittests fails on Android devices
when linked with lld. It appears that the glibc dynamic loader
happens to always load executables (or at least the executables that
we create) at a lower address than DSOs, so we never hit this bug on
desktop Linux.
Testing: "make check" with both gold and lld as linker. Also
breakpad_unittests when patched into Chromium on Linux (lld) and
Android (gold and lld).
Bug: chromium:469376
Change-Id: I6329e4afd2f1bf44c25a6c3e684495e21dba83a6
Reviewed-on: https://chromium-review.googlesource.com/722286
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
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memory.h shadows a system header which normally isn't a problem
because of the include paths in Breakpad, but the Firefox build
system winds up with src/common in the include path so we've had
a workaround for this for years. Renaming the file lets us get
rid of that workaround and shouldn't hurt anything.
Change-Id: I3b7c4239dc77f3b2b7cf2b572a0cad88cd7e8522
Reviewed-on: https://chromium-review.googlesource.com/723261
Reviewed-by: Mark Mentovai <mark@chromium.org>
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This exception_handler_no_mach does not use Mach for exception handling
so that clients such as tvOS and watchOS that do not support mach
messages can handle POSIX signals.
Change-Id: I4a4574e58834bc590e110e6ecd1825f8af1437a2
Reviewed-on: https://chromium-review.googlesource.com/714276
Reviewed-by: Mark Mentovai <mark@chromium.org>
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Mostly int<->size_t implicit conversions.
Warning 4366 (The result of the unary '&' operator may be unaligned)
appears in minidump.cc:907, but I don't know why. It looks aligned to me.
Change-Id: I641942adc324f8f9832b20662083dc83498688a8
Reviewed-on: https://chromium-review.googlesource.com/637390
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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This relands
https://chromium.googlesource.com/breakpad/breakpad/src/+/e3035bc406cee8a4d765e59ad46eb828705f17f4,
which was accidentally committed to breakpad/breakpad/src, the read-only
mirror of src in breakpad/breakpad. (Well, it should have been
read-only.) See https://crbug.com/766164.
This fixes issues with glibc-2.26.
See https://bugs.gentoo.org/show_bug.cgi?id=628782 ,
https://sourceware.org/git/?p=glibc.git;h=251287734e89a52da3db682a8241eb6bccc050c9 , and
https://sourceware.org/ml/libc-alpha/2017-08/msg00010.html for context.
Change-Id: Id66f474d636dd2afa450bab925c5514a800fdd6f
Reviewed-on: https://chromium-review.googlesource.com/674304
Reviewed-by: Mark Mentovai <mark@chromium.org>
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The only code using gflags is google_crash_report_sender, and nothing
builds or tests that code currently. Switch it over to using system
versions of gflags so we can drop the local prebuilts. Tested local
builds by hand of the tool.
Bug: google-breakpad:360
Change-Id: I75d79b176468c948773079a54d87e70709feaf87
Reviewed-on: https://chromium-review.googlesource.com/665799
Reviewed-by: Mark Mentovai <mark@chromium.org>
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This will allow us to provide the right information for webview renderer
crashes. At the moment the crash information for the browser process is
captured (from the debuggerd output) instead.
BUG=754715
Change-Id: I409546311b6e38fe1cf804097c18d7bb2a015d83
Reviewed-on: https://chromium-review.googlesource.com/612381
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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1. Fixing ExceptionHandlerTest.FirstChanceHandlerRuns:
exit() is not an async-signal-safe function (http://man7.org/linux/man-pages/man7/signal-safety.7.html)
2. Fixing entry point signature in minidump_dump
Changed "const char* argv[]" to "char* argv[]" to match the standard entry point signature
3. Updating .gitignore to exclude unit test artifacts
Change-Id: I9662898d0bd97769621fb6476a720105821c60f0
Reviewed-on: https://chromium-review.googlesource.com/562356
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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When rolling this into Chrome, we got compile failures due to
DoNullPointerDereference being undefined but the new FirstChanceHandlerRuns
tests depends on this and was still defined.
The fix is to only enable the FirstChanceHandlerRuns test on non-asan builds.
Bug:
Change-Id: I5a3da0a21e2d0dd663ffc01137496d16905293a6
Reviewed-on: https://chromium-review.googlesource.com/544186
Reviewed-by: Mark Mentovai <mark@chromium.org>
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This change adds the option for Breakpad hosts to register a callback
that gets the first chance to handle an exception. The handler will
return true if it handled the exception and false otherwise.
The primary use case is V8's trap-based bounds checking support for
WebAssembly.
Bug:
Change-Id: I5aa5b87d1229f1cef905a00404fa2027ee86be56
Reviewed-on: https://chromium-review.googlesource.com/509994
Reviewed-by: Mark Mentovai <mark@chromium.org>
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The bfd and gold linkers create segments like this: r/x, r/w where
the r/x segment covers the start of the ELF file.
lld's segments look like this: r, r/x, r/w where the r segment covers
the start of the ELF file.
So we cannot rely on the location of the r/x to tell where the start
of the ELF is. But we can still rely on the r and r/x mappings being
adjacent. So what we do is when we see an r segment followed by an r/x,
merge the r into the r/x and claim that it is executable. This way,
the minidump writer will continue to see a single executable segment
covering the entire executable.
Testing: "make check" passes when breakpad is compiled with
lld compiled from trunk (requires bug fix from LLVM r303689).
Also patched change into chromium and tested these builds:
$ cat args.gn
is_chrome_branded = true
is_debug = false
is_official_build = true
use_lld = true
allow_posix_link_time_opt = false
is_cfi = false
$ cat args.gn
target_os = "android"
target_cpu = "arm"
is_debug = false
is_official_build = true
is_chrome_branded = true
With both builds breakpad_unittests passes and
chrome/chrome_modern_public_apk create good minidumps after navigating
to chrome://inducebrowsercrashforrealz (checked that minidump contains
stack trace entry for content::HandleDebugURL).
Bug: chromium:716484
Change-Id: Ib6ed3a8420b83acf4a5962843930fb006734cb95
Reviewed-on: https://chromium-review.googlesource.com/513610
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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Follow up to https://chromium-review.googlesource.com/c/484479/, which
does not compile on arm64.
Bug: chromium:725754
Change-Id: Iaa6fbc332564909a10e2602a1026c14fb25625f4
Reviewed-on: https://chromium-review.googlesource.com/515044
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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The layout of Elf32_Nhdr and Elf64_Nhdr is the same, so remove
templating and code that extracts the elfclass from the ELF file.
Testing: "make check" and breakpad_unittests when patched into
chromium.
Bug: chromium:716484
Change-Id: I41442cfff48afc6ae1a5b604d22b67550a910376
Reviewed-on: https://chromium-review.googlesource.com/514450
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Also adds waits for all child processes spawned in MinidumpWriterTest.
Bug: 725754
Change-Id: I3248925993dede2c113ab1989b322a9d9c8f24bd
Reviewed-on: https://chromium-review.googlesource.com/513480
Reviewed-by: Mark Mentovai <mark@chromium.org>
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When writing a minidump on Linux, we called clone() in
linux/handler/exception_handler.cc with the CLONE_FILES flag. If the
parent process died while the child waited for the continuation signal,
the write side of the pipe 'fdes' stayed open in the child. The child
would not receive a SIGPIPE and would wait forever.
To fix this, we clone without CLONE_FILES and then close the
read-side of fdes in the master before the ptrace call. That way, if the
master dies, the child will receive a SIGPIPE and will die, too.
To test this I added a sleep() call before SendContinueSignalToChild()
and then killed the master, manually observing that the child would die,
too.
Bug: 728
Change-Id: Ifd72de835a34e7d9852ae1a362e707fdc6c96c7e
Reviewed-on: https://chromium-review.googlesource.com/464708
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Try to read the trace's registers by PTRACE_GETREGS if kernel doesn't support PTRACE_GETREGSET.
Bug:
Change-Id: I881f3a868789747ca217f22a93370c6914881f9a
Reviewed-on: https://chromium-review.googlesource.com/484479
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Because we can't determine the top of userspace mappable memory
directly, we rely on the fact that the process stack is allocated at the
top of the address space (minus some randomization). Anything after that
should not count as free space.
BUG=695382
Change-Id: I68453aac9732c2bd4b87236b234518068dec6640
Reviewed-on: https://chromium-review.googlesource.com/446100
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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BUG=703599
Change-Id: I5623705edc41644495aa4f2389056d255e22da8e
Reviewed-on: https://chromium-review.googlesource.com/459617
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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If the crashing thread doesn't reference the principal mapping we can
assume that not only is that thread uninteresting from a debugging
perspective, the whole crash is uninteresting. In that case we should
not generate a minidump at all.
BUG=703599
Change-Id: Ia25bbb8adb79d04dcaf3992c3d2474f3b9b1f796
Reviewed-on: https://chromium-review.googlesource.com/457338
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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This change is fixing LinuxPtraceDumperTest.SanitizeStackCopy
test case.
Change-Id: I1eb3becfd4b3660bc5529b5d2a5e35db0b6eb6e0
Reviewed-on: https://chromium-review.googlesource.com/458277
Reviewed-by: Mark Mentovai <mark@chromium.org>
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If another memory region of interest (e.g. a thread stack) randomly happens
to lie immediately before the page allocated by this test, the memory
regions can be coalesced in the minidump generated. Relax this test so it
correctly handles the case where the expected 256 bytes around the IP aren't
at the start of the minidump memory region.
Alternatively, that could be avoided by reserving the page before the page
used for this test, in which case this test is degenerate with
InstructionPointerMemoryMinBound and can be removed.
BUG=
Change-Id: Ib1bfb242b2c0acaa090df68334a02ac434ad880c
Reviewed-on: https://chromium-review.googlesource.com/456702
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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ExceptionHandlerTest.InvalidParameterMiniDumpTest and
ExceptionHandlerTest.PureVirtualCallMiniDumpTest both also exercise a
feature that if the MiniDumpWithFullMemory MINIDUMP_TYPE is used, both
UUID.dmp and UUID-full.dmp files are written.
This is currently broken, and requesting a minidump with
MiniDumpWithFullMemory MINIDUMP_TYPE fails, as the file handle for the full
dump is not set.
Call GenerateFullDumpFile() if MiniDumpWithFullMemory is requested, to
generate a filename for the full dump file and set the file handle.
Currently GenerateFullDumpFile() also generates another UUID for the full
dump filename, so also make the private method
MinidumpGenerator::GenerateDumpFilePath() idempotent (so the same UUID is
reused)
(Note that calling Generate(|Full)DumpFile() more than once is not
permitted, so there's no behaviour where this changed the UUID to preserve)
BUG=
Change-Id: I74304f38b398f53da1c24f368dedfba8463da9e5
Reviewed-on: https://chromium-review.googlesource.com/452978
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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For iOS apps, product and version information is
now automatically provided as part of the crash
report upload URL to allow for early rejections.
Change-Id: Ia19c490c38023f9e23ec8a537f7a203ff1e642d7
Reviewed-on: https://chromium-review.googlesource.com/436164
Reviewed-by: Roman Margold <rmargold@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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Rather than relying on the process stack having all the things that
should/shouldn't be sanitized, create synthetic stacks to test all of
the important cases.
BUG=664460
Change-Id: I959266390e94d6fb83ca8ef11ac19fac89e68c31
Reviewed-on: https://chromium-review.googlesource.com/446108
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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The address space of every Android Java process is approximately 50%
mapped, which means that sanitization tends to be ineffective because
most string fragments are plausibly pointers into some mapping.
For example, the zygote on 32 bit devices has the following mappings
made by dalvik and this covers all 4 byte strings starting with a
character between 0x13 and 0x52 (which includes all uppercase characters
up to and including 'R').
12c00000-12d16000
12d16000-32c00000
32c00000-32c01000
32c01000-52c00000
In order to perform stack unwinding we only need pointers into the stack
of the thread in question, and pointers to executable mappings. If we
reduce the set of considered mappings to those mappings alone, then only
~2% of the address space is left unelided.
BUG=664460
Change-Id: I1cc27821659acfb91d658f42a83a24c176505a88
Reviewed-on: https://chromium-review.googlesource.com/446500
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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This addresses a bug in commit 049a1532 that meant that the PC of the
crashing thread was always used to determine whether to include a stack,
instead of using the PC of the thread in question.
BUG=664460
Change-Id: Idcbd5db751e5c00941a1be28607389961c0c75d7
Reviewed-on: https://chromium-review.googlesource.com/446499
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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We were using the main queue to queue up a perform selector and then the code
[self sendStoredCrashReports] was immediately doing a dispatch_async.
This unnecessary thread switching is not needed.
We simplify the above logic and use dispatch_after to queue the block on
the
internal queue after a delay
Note that main queue is typically more loaded and it is better for
non-UI code
to not use the main queue. This may also help improve crash log upload.
This change also switches from @synchronized to dispatch_once as that is
faster
Reference:
http://googlemac.blogspot.com/2006/10/synchronized-swimming.html
BUG=
Change-Id: I81035149cbbf13a3058ca3a11e6efd23980f19ad
Reviewed-on: https://chromium-review.googlesource.com/441364
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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The use of DBG_PRINTEXCEPTION_WIDE_C was added for Win10 support,
but that define doesn't exist in older versions which means we fail
to build. Put it behind an ifdef check to work everywhere.
Change-Id: Ibab8bddd5c19b4b50e356f59edeb3873c3104569
Reviewed-on: https://chromium-review.googlesource.com/441525
Reviewed-by: Mark Mentovai <mark@chromium.org>
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The Windows build has rotted a bit with the gtest/gmock updates.
Update all of the paths to fix things up again.
Change-Id: Id67ce76abfd331c0543aa4bd1138e9cc13a18c75
Reviewed-on: https://chromium-review.googlesource.com/441584
Reviewed-by: Mark Mentovai <mark@chromium.org>
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src/client/linux/microdump_writer/microdump_writer_unittest.cc:98:47: error:
ignoring return value of 'ssize_t write(int, const void*, size_t)',
declared with attribute warn_unused_result [-Werror=unused-result]
write(STDOUT_FILENO, identifiable_string, 0);
Change-Id: I3f2305fbec0dbd1464de9aeff051e7cba2ee69a2
Reviewed-on: https://chromium-review.googlesource.com/438545
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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See: https://chromium-review.googlesource.com/c/430050/
BUG=664460
Change-Id: I3cbfbd5b00725bd501f06427eebd976267c4f617
Reviewed-on: https://chromium-review.googlesource.com/438444
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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BUG=664460
Change-Id: I40d8567c659e97415db65cb308c0d39391c44353
Reviewed-on: https://chromium-review.googlesource.com/438364
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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This makes the parameters stored in the MinidumpDescriptor structure
functional for minidumps, analogously to how they are applied to
microdumps.
BUG=664460
Change-Id: I7578e7a1638cea8f0445b18d4bbdaf5e0a32d808
Reviewed-on: https://chromium-review.googlesource.com/435380
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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This reverts commit 262a3f50fe5948c2570bbce2cd696e253a88af79.
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Recently, Crash started applying quotas for crash report uploads to protect the service and its client products from misbehaving product or product version. For the protection to be effective, products need to identify themselves during report upload via URL parameters. This new code makes iOS apps using Breakpad provide the parameters automatically.
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In order to sanitize the stack contents we erase any pointer-aligned
word that could not be interpreted as a pointer into one of the
processes' memory mappings, or a small integer (+/-4096).
This still retains enough information to unwind stack frames, and also
to recover some register values.
BUG=682278
Change-Id: I541a13b2e92a9d1aea2c06a50bd769a9e25601d3
Reviewed-on: https://chromium-review.googlesource.com/430050
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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Follow-up CL to add relevant code to the copy constructor and assignment
operator for MinidumpDescriptor
BUG=664460
Change-Id: I71c0ad01d8686a9215a718cebc9d11a215ea342c
Reviewed-on: https://chromium-review.googlesource.com/430711
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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This CL makes it possible to skip a dump if the crashing thread doesn't
have any pointers to a given module. The concrete use case is WebView
where we would like to skip generating microdump output when webview
is unreferenced by the stack and thus cannot be responsible for the
crash in a way that would be debuggable.
The range of interesting addresses is chosen by examining the process
mappings to find the one that contains a pointer that is known to be in
the right shared object (i.e. an appropriately chosen function pointer)
passed from the client.
If the extracted stack does not contain a pointer in this range, then we
do not generate a microdump. If the stack extraction fails, we still
generate a microdump (without a stack).
BUG=664460
Change-Id: If19406a13168264f7751245fc39591bd6cdbf5df
Reviewed-on: https://chromium-review.googlesource.com/419476
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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BUG=
Change-Id: Ie4d190c68ecbd8709874a3f1ceb872b94b36914f
Reviewed-on: https://chromium-review.googlesource.com/419036
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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Commit 7a8980997d0e0dcf3f3a5d8ccf3c1d8c2840ea27 introduced additional
tests into MicrodumpWriterTest, two of which throw warnings which break
"make check" under default settings on Linux, because the Makefiles are
configured with -Werror=sign-compare.
This patch just makes the signedness of the assertion arguments match.
Change-Id: Ib522f44205c84f91bc9b93276fad60ebbf005f60
Reviewed-on: https://chromium-review.googlesource.com/418938
Reviewed-by: Tobias Sargeant <tobiasjs@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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If signal_fd is -1 still, we end up calling close(-1). Not generally
a problem, but it's bad form, and coverity is upset by it.
Change-Id: I46f9c7ca4be7b43af5b609dd8e3f03a0700af418
Reviewed-on: https://chromium-review.googlesource.com/414544
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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Change-Id: I11542ea9b702055e8f0b99c26cad2fea8681bce0
Reviewed-on: https://chromium-review.googlesource.com/417824
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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The stack interest range is passed in MicrodumpExtraInfo from the client.
If the extracted stack does not contain a pointer in this range, then we
assume that this is not a WebView crash, and do not generate a microdump.
If the stack extraction fails, we still generate a microdump (without a
stack).
BUG=664460
Change-Id: Ic762497f76f074a3621c7ec88a8c20ed768b9211
Reviewed-on: https://chromium-review.googlesource.com/412781
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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Change-Id: I09c90d496edc67d4cad3e2b99f4347dc04713bdb
Reviewed-on: https://chromium-review.googlesource.com/414357
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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code.google.com is obsolete.
Fix all broken markdown links while at it.
Change-Id: I6a337bf4b84eacd5f5c749a4ee61331553279009
Reviewed-on: https://chromium-review.googlesource.com/411800
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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