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* Fix double declaration of tgkill when using Android NDK Headers.Nicholas Baldwin2017-10-301-7/+1
| | | | | | | | | | | | | 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>
* Rename src/common/memory.h to memory_allocator.h.Ted Mielczarek2017-10-171-1/+1
| | | | | | | | | | | | 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>
* Replace remaining references to 'struct ucontext' with 'ucontext_t'Mark Mentovai2017-09-202-8/+8
| | | | | | | | | | | | | | | | | 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>
* A couple of minor fixesLeonard Mosescu2017-07-111-1/+1
| | | | | | | | | | | | | | | | 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>
* Fix asan buildsEric Holk2017-06-221-23/+23
| | | | | | | | | | | | | 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>
* Add first chance exception handler APIEric Holk2017-06-193-0/+44
| | | | | | | | | | | | | | 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>
* Fix race in ExceptionHandler::GenerateDump()Lars Volker2017-05-101-3/+9
| | | | | | | | | | | | | | | | | | | | | 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>
* Wire up stack sanitization and skipping to WriteMinidumpTobias Sargeant2017-02-031-5/+16
| | | | | | | | | | | | 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>
* Sanitize dumped stacks to remove data that may be identifiable.Tobias Sargeant2017-01-313-3/+21
| | | | | | | | | | | | | | | 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>
* Add API to skip dump if crashing thread doesn't reference a given module (2)Tobias Sargeant2017-01-191-0/+8
| | | | | | | | | | | 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>
* Add API to skip dump if crashing thread doesn't reference a given moduleTobias Sargeant2017-01-183-17/+42
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* Do not generate a microdump if there are no webview pointers on the stack.Tobias Sargeant2016-12-011-1/+13
| | | | | | | | | | | | | | 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>
* Comment out an unused function argumentOrgad Shaneh2016-11-291-1/+1
| | | | | | Change-Id: I09c90d496edc67d4cad3e2b99f4347dc04713bdb Reviewed-on: https://chromium-review.googlesource.com/414357 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Add process type to MicroDumpExtraInfoPrimiano Tucci2016-07-191-1/+5
| | | | | | | BUG=616774 R=primiano@chromium.org, torne@chromium.org Review URL: https://codereview.chromium.org/2087413002 .
* linux/android: add SIGTRAP to the list of signals handled by the clientPrimiano Tucci2016-06-081-1/+1
| | | | | | | | | | | | | __builtin_trap() causes a SIGTRAP on arm64 (at least with GCC 4.9). SIGTRAP is not handled by breakpad, causing crashes induced by __builtin_trap() to be missed. Note that on x86 and arm, instead, __builtin_trap() raises a SIGILL, which is already handled by breakapd. BUG=chromium:614865 R=vapier@chromium.org Review URL: https://codereview.chromium.org/2042853002 .
* breakpad: fix unittest errorsYunlian Jiang2016-05-041-4/+0
| | | | | | | | | | | This fixes the unittest error caused by https://codereview.chromium.org/1884283002/ TEST=unittest passes on falco board in ChromeOS. BUG= R=vapier@chromium.org Review URL: https://codereview.chromium.org/1952083002 .
* Switch the Linux minidump writer to use MDCVInfoELF for CV data.Ted Mielczarek2016-04-051-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This preserves full build ids in minidumps, which are useful for tracking down the right version of system libraries from Linux distributions. The default build id produced by GNU binutils' ld is a 160-bit SHA-1 hash of some parts of the binary, which is exactly 20 bytes: https://sourceware.org/binutils/docs-2.26/ld/Options.html#index-g_t_002d_002dbuild_002did-292 The bulk of the changes here are to change the signatures of the FileID methods to use a wasteful_vector instead of raw pointers, since build ids can be of arbitrary length. The previous change that added support for this in the processor code preserved the return value of `Minidump::debug_identifier()` as the current `GUID+age` treatment for backwards-compatibility, and exposed the full build id from `Minidump::code_identifier()`, which was previously stubbed out for Linux dumps. This change keeps the debug ID in the `dump_syms` output the same to match. R=mark@chromium.org, thestig@chromium.org BUG= Review URL: https://codereview.chromium.org/1688743002 .
* Fix -Wunused-function warnings in ASAN builds.Lei Zhang2015-12-301-6/+2
| | | | | | | | A=thakis@chromium.org BUG=chromium:573250 Original Review: https://codereview.chromium.org/1551963002/ Review URL: https://codereview.chromium.org/1551983002 .
* Add GPU fingerprint information to breakpad microdumps.Primiano Tucci2015-09-284-51/+73
| | | | | | | | | | | | | | | | | | Although strictly the GPU fingerprint is defined by the build fingerprint, there is not currently a straightforward mapping from build fingerprint to useful GPU / GL driver information. In order to aid debugging of WebView crashes that occur in GL drivers, and to better understand the range of drivers and versions for feature blacklisting purposes, it is useful to have GPU fingerprints in breakpad microdumps. Landing this patch on behalf of Tobias Sargeant<tobiasjs@chromium.org> BUG=chromium:536769 R=primiano@chromium.org, thestig@chromium.org Review URL: https://codereview.chromium.org/1334473003 .
* Linux ExceptionHandler: don't allocate the CrashContext on the stackPrimiano Tucci2015-09-221-15/+27
| | | | | | | | | | | | | | | | | | | | | | | | | On Android the size of the alternate stack can be very small (8k). Even if breakpad uses sigaltstack to increase the size of the alternate stack during initialization, that call affects only the main thread. On Android, the libc's pthread initializer reset the sigaltstack to 8k. When entering a signal handler, the kernel typically pushes the context on the alternate stack. On arm64, sizeof(CrashContext) is ~5k, which leaves 3k of usable stack for breakpad. On top of that, breakpad allocates another struct CrashContext on the stack. In the case of Android arm64, then, breakpad ends up using 5k + 5k > 8k of stack, which causes a stack overflow. This got unnoticed in Android L, as the alternate stack didn't have red-zones between them, so breakpad was often happily overflowing onto the next thread's stack. This is not the case anymore [1]. This CL moves the CrashContext into a global variable. It should be safe as the ExceptionHandlers are serialized on a mutex. [1] https://android.googlesource.com/platform/bionic/+/595752f623ae88f7e4193a6e531a0805f1c6c4dc BUG=374 R=mark@chromium.org Review URL: https://codereview.chromium.org/1354923002 .
* [microdump] Move microdump writes to the crash ring-buffer logprimiano@chromium.org2015-08-171-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | So far the microdump_writer dumped the log in logcat using the default system log. This is simple to achieve but has some drawbacks: 1. Creates spam in the system log, pushing back other eventual useful messages. 2. There is a high chance that the microdump gets lost if some log spam storm happens immediately after a crash and before the log is collected by the feedback client. 3. Since Android L, the logger is smartly throttling messages (to reduce logcat spam). Throttling brekpad logs defeats the all point of microdumps. This change is conceptually very simple. Replace the use of __android_log_write() with __android_log_buf_write(), which takes an extra bufID argument. The main drawback is that the __android_log_buf_write is not exported in the NDK and needs to be dynamically looked up via dlsym. This choice has been discussed and advocated by Android owners. See the internal bug b/21753476. BUG=chromium:512755 R=thestig@chromium.org Review URL: https://codereview.chromium.org/1286063003 . git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1490 4c0a9323-5329-0410-9bdc-e9ce6186880e
* tests: InstructionPointerMemoryNullPointer: make it work under llvmvapier@chromium.org2015-07-201-1/+6
| | | | | | | | | | | | | When LLVM sees an attempt to dereference a NULL pointer, it will generate invalid opcodes (undefined behavior) which leads to SIGILL which breaks this unittest. Upstream's recommendation in this case is to add volatile markings to get the actual dereference to happen. This is documented in the blog post under "Dereferencing a NULL Pointer": http://blog.llvm.org/2011/05/what-every-c-programmer-should-know.html git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1473 4c0a9323-5329-0410-9bdc-e9ce6186880e
* [microdump] Add build fingerprint and product info metadata.primiano@chromium.org2015-05-153-9/+59
| | | | | | | | | | | | | | | | This is to add build fingerprint and product name/version to microdumps. Conversely to what happens in the case of minidumps with MIME fields, due to the nature of minidumps, extra metadata cannot be reliably injected after the dump is completed. This CL adds the plumbing to inject two optional fields plus the corresponding tests. BUG=chromium:410294 R=thestig@chromium.org Review URL: https://codereview.chromium.org/1125153008 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1456 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix signal propagation logic for Linux/Android exception handler.primiano@chromium.org2015-04-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current code is relying on info->si_pid to figure out whether the exception handler was triggered by a signal coming from the kernel (that will re-trigger until the cause that triggered the signal has been cleared) or from user-space e.g., kill -SIGNAL pid, which will NOT automatically re-trigger in the next signal handler in the chain. While the intentions are good (manually re-triggering user-space signals), the current implementation mistakenly looks at the si_pid field in siginfo_t, assuming that it is coming from the kernel if si_pid == 0. This is wrong. siginfo_t, in fact, is a union and si_pid is meaningful only for userspace signals. For signals originated by the kernel, instead, si_pid overlaps with si_addr (the faulting address). As a matter of facts, the current implementation is mistakenly re-triggering the signal using tgkill for most of the kernel-space signals (unless the fault address is exactly 0x0). This is not completelly correct for the case of SIGSEGV/SIGBUS. The next handler in the chain will stil see the signal, but the |siginfo| and the |context| arguments of the handler will be meaningless (retriggering a signal with tgkill doesn't preserve them). Therefore, if the next handler in the chain expects those arguments to be set, it will fail. Concretelly, this is causing problems to WebView. In some rare circumstances, the next handler in the chain is a user-space runtime which does SIGSEGV handling to implement speculative null pointer managed exceptions (see as an example http://www.mono-project.com/docs/advanced/runtime/docs/exception-handling/) The fix herein proposed consists in using the si_code (see SI_FROMUSER macros) to determine whether a signal is coming form the kernel (and therefore just re-establish the next signal handler) or from userspace (and use the tgkill logic). Repro case: This issue is visible in Chrome for Android with this simple repro case: - Add a non-null pointer dereference in the codebase: *((volatile int*)0xbeef) = 42 Without this change: the next handler (the libc trap) prints: F/libc ( 595): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x487 where 0x487 is actually the PID of the process (which is wrong). With this change: the next handler prints: F/libc ( 595): Fatal signal 11 (SIGSEGV), code 1, fault addr 0xbeef which is the correct answer. BUG=chromium:481937 R=mark@chromium.org Review URL: https://breakpad.appspot.com/6844002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1454 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix call to rt_sigactioncjhopman@chromium.org2015-04-151-4/+4
| | | | | | | | | | | Despite the fact that many places imply that sigaction and rt_sigaction are essentially the same, rt_sigaction's signature is actually different-- it takes the size of the kernel's sigset_t as an extra argument. BUG=473973 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1447 4c0a9323-5329-0410-9bdc-e9ce6186880e
* MIPS64: Initial MIPS64 related change.mark@chromium.org2015-04-151-0/+4
| | | | | | | | | | | With this change Breakpad can be compiled for MIPS64, but it is not yet functional. Patch by Gordana Cmiljanovic <Gordana.Cmiljanovic@imgtec.com> Review URL: https://breakpad.appspot.com/6824002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1446 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Use __NR_rt_sigaction instead of __NR_sigactionmark@chromium.org2015-04-131-1/+1
| | | | | | | | | | | __NR_sigaction is not defined on arm64/x64/etc (or rather, it's defined in unistd-32.h instead of unistd.h). Patch by Chris Hopman <cjhopman@chromium.org> Review URL: https://breakpad.appspot.com/10724002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1443 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Workaround Android sigaction bugmark@chromium.org2015-04-101-3/+21
| | | | | | | | | | | | | | | | | On Android L+, signal and sigaction symbols are provided by libsigchain that override the system's versions. There is a bug in these functions where they essentially ignore requests to install SIG_DFL. Workaround this issue by explicitly performing a syscall to __NR_rt_sigaction to install SIG_DFL on Android. BUG=473973 Patch by Chris Hopman <cjhopman@chromium.org> Review URL: https://breakpad.appspot.com/1804002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1438 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix compilation with gcc --std=c++11ted.mielczarek@gmail.com2015-03-241-1/+1
| | | | | | | | | Patch by Jon Turney <jon.turney.1111@gmail.com> R=ted at https://breakpad.appspot.com/7824002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1435 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix the scope on the initialization of kMicrodumpOnConsole to match header.primiano@chromium.org2015-01-091-1/+2
| | | | | | | | | | | I whish I knew how this worked for months in chromium as it is clearly wrong. As reported by azarchs@ it is breaking the cygprofile instrumented build. BUG=chromium:410294 Review URL: https://breakpad.appspot.com/1784002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1413 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Introduce microdump writer class.primiano@chromium.org2014-10-283-13/+56
| | | | | | | | | | | | | | | | | | | Microdumps are a very lightweight variant of minidumps. They are meant to dump a minimal crash report on the system log (logcat on Android), containing only the state of the crashing thread. This is to deal with cases where the user has opted out from crash uploading but we still want to generate meaningful information on the device to pull a stacktrace for development purposes. Conversely to conventional stack traces (e.g. the one generated by Android's debuggerd or Chromium's base::stacktrace) microdumps do NOT require unwind tables to be present in the target binary. This allows to save precious binary size (~1.5 MB for Chrome on Arm, ~10 MB on arm64). More information and design doc on crbug.com/410294 BUG=chromium:410294 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1398 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix some nits raised by Timur for r1385.thestig@chromium.org2014-09-241-3/+2
| | | | | | | | R=ivanpe@chromium.org Review URL: https://breakpad.appspot.com/1734002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1387 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux: Call memset() in a couple places in ExceptionHandler to avoid uninit ↵thestig@chromium.org2014-09-232-35/+32
| | | | | | | | | | | | | memory reads under Valgrind. Also move private static variables into the .cc file. BUG=chromium:332335 R=ivanpe@chromium.org Review URL: https://breakpad.appspot.com/5734002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1385 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Make crash_handler volatile to prevent compiler optimizing it away.rmcilroy@chromium.org2014-07-021-1/+5
| | | | | | | | | | | | | This bug manifests itself on Android x64 (in ExceptionHandlerTest::ExternalDumper), but is possible on any platform. The compiler is unaware of the code which runs in the signal handler which reads this variable. Without volatile the compiler is free to optimise away writes to this variable which it believes are never read. BUG=381142, 346626 R=thestig@chromium.org Review URL: https://breakpad.appspot.com/8664002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1343 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Cleanup: hide undefined behavior from the compiler better.ivanpe@chromium.org2014-07-011-4/+18
| | | | | | | | | | Submitting this on behalf of Paul Pluzhnikov. R=mark@chromium.org Review URL: https://breakpad.appspot.com/6674002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1342 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux: Fix a memory leak in ExceptionHandler.thestig@chromium.org2014-05-281-0/+2
| | | | | | | | | BUG=592 R=mark@chromium.org Review URL: https://breakpad.appspot.com/3684002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1334 4c0a9323-5329-0410-9bdc-e9ce6186880e
* FD leaks and handle errors better.rsesek@chromium.org2014-05-061-4/+10
| | | | | | | | | Patch from Matthew Dempsky <mdempsky@chromium.org>. Original review: https://breakpad.appspot.com/5654002/ Review URL: https://breakpad.appspot.com/1674002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1326 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Make the Linux CrashGenerationClient an interface.rsesek@chromium.org2014-05-051-1/+5
| | | | | | | | | | | | Also allow it to be set on the ExceptionHandler. This will allow Chromium's implementation to be properly treated as an out-of-process handler. BUG=https://code.google.com/p/chromium/issues/detail?id=349600 R=mark@chromium.org Review URL: https://breakpad.appspot.com/2664002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1324 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Increase Breakpad's signal handler stack size.rmcilroy@chromium.org2014-04-091-1/+1
| | | | | | | | | | | | Some unittests fail on Android (both on Arm and Arm64) without this stack size increase. BUG=354405,335641 R=mark@chromium.org Review URL: https://breakpad.appspot.com/1484002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1307 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add Arm64 version of breakpad_getcontext for Android.rmcilroy@chromium.org2014-04-032-6/+13
| | | | | | | | | | | | This CL adds breakpad_getcontext support for Arm64 to Android. The assembly is based on getcontext.S in glibc. BUG=354405,335641 R=mark@chromium.org Review URL: https://breakpad.appspot.com/1384002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1302 4c0a9323-5329-0410-9bdc-e9ce6186880e
* First cut at adding arm64 Linux / Android support to Breakpad.rmcilroy@chromium.org2014-04-022-8/+11
| | | | | | | | | | | | | | This is an initial attempt to add Arm64 (aarch64) support to Breakpad for Linux / Android platforms. This CL adds the Arm64 data structures, but does not yet implement the Android getcontext support or CPUFillFromThreadInfo / CPUFillFromUContext. BUG=354405,335641 R=mark@chromium.org Review URL: https://breakpad.appspot.com/1354002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1301 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Trim unintentional whitespace and fix style nitsthestig@chromium.org2014-03-181-9/+9
| | | | | | | | | | Original review: https://breakpad.appspot.com/1204002/ A=mdempsky@chromium.org R=mdempsky@chromium.org Review URL: https://breakpad.appspot.com/1244002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1287 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Make Linux ExceptionHandler::HandleSignal publicted.mielczarek@gmail.com2014-02-051-1/+3
| | | | | | A=Jed Davis <jld@mozilla.com> R=ted at https://breakpad.appspot.com/1114003/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1279 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Use a proper ignore_result() to fix a ftruncate warn_unused_result warning ↵thestig@chromium.org2013-12-181-1/+2
| | | | | | | | | | | with GCC 4.8. BUG=492 R=mark@chromium.org Review URL: https://breakpad.appspot.com/944003 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1266 4c0a9323-5329-0410-9bdc-e9ce6186880e
* disable unittests under ASAN that use memory crashesvapier@chromium.org2013-12-111-5/+14
| | | | | | | | | | | | | | | | | | | | | There are a bunch of tests that use invalid memory acesses (on purpose) to trigger a crash so that we can detect things are dumped correctly. When we run under ASAN, it catches those accesses and the breaks the testing flow. For now, use the existing ADDRESS_SANITIZER symbol to disable more tests. Ideally we'd use a compile-time attribute to disable ASAN on a few funcs, but that seems to be broken atm. BUG=chromium:293519 BUG=chromium:304575 TEST=ran unittests under ASAN and they now pass TEST=ran unittests w/out asan/clang and they still pass R=benchan@chromium.org Review URL: https://breakpad.appspot.com/884002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1255 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Allow SIGABRT to abort the program.thestig@chromium.org2013-11-071-2/+3
| | | | | | | | | | | | | | | | | | | | SIGABRT can be generated internally, usually by calling abort(), or externally by another process. When the signal is generated by the kernel, info->si_pid is 0 and the signal is treated in the same way as an exception (SIGSEGV, etc.), but the assumption that the exception happens again upon return from the handler is wrong, so we must have a special case for this. Original CL: https://breakpad.appspot.com/734002/ BUG=chromium:303075 TEST=tested with Alt-VolumeUp-X on Chrome OS A=semenzato@chromium.org R=semenzato@google.com Review URL: https://breakpad.appspot.com/754002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1233 4c0a9323-5329-0410-9bdc-e9ce6186880e
* increase exception handler stack size for dumping threadvapier@chromium.org2013-10-231-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running unittests under ASAN, we see that these code paths can slightly smash the stack. Double it to avoid that. [ RUN ] ExceptionHandlerTest.InstructionPointerMemoryMinBound ================================================================= ==12775== ERROR: AddressSanitizer: stack-buffer-overflow on address 0xf6787614 at pc 0xf7516b29 bp 0xf6786d38 sp 0xf6786d30 READ of size 4 at 0xf6787614 thread T0 #0 0xf7516b28 (/build/x86-generic/tmp/portage/chromeos-base/google-breakpad-1181-r66/work/google-breakpad-1181/build/src/client/linux/linux_client_unittest_shlib+0x69eb28) Shadow byte and word: 0x3ecf0ec2: f2 0x3ecf0ec0: f2 f2 f2 f2 More shadow bytes: 0x3ecf0eb0: f2 f2 f2 f2 0x3ecf0eb4: 04 f4 f4 f4 0x3ecf0eb8: f2 f2 f2 f2 0x3ecf0ebc: 04 f4 f4 f4 =>0x3ecf0ec0: f2 f2 f2 f2 0x3ecf0ec4: 04 f4 f4 f4 0x3ecf0ec8: f2 f2 f2 f2 0x3ecf0ecc: 04 f4 f4 f4 0x3ecf0ed0: f2 f2 f2 f2 Stats: 0M malloced (0M for red zones) by 2757 calls Stats: 0M realloced by 0 calls Stats: 0M freed by 2229 calls Stats: 0M really freed by 0 calls Stats: 3M (899 full pages) mmaped in 7 calls mmaps by size class: 7:4095; 8:2047; 9:1023; 10:511; 14:32; 16:16; mallocs by size class: 7:1831; 8:590; 9:85; 10:233; 14:3; 16:15; frees by size class: 7:1459; 8:437; 9:84; 10:232; 14:2; 16:15; rfrees by size class: Stats: malloc large: 15 small slow: 25 ==12775== ABORTING BUG=chromium:293519 TEST=ran unittests under ASAN and they now pass R=benchan@chromium.org Review URL: https://breakpad.appspot.com/636002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1224 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Adding mips support for Android.gordana.cmiljanovic@imgtec.com2013-09-251-1/+6
| | | | | | | | | | | | | | Mips linux support has been added previously in r1212. Some additional changes are required to make breakpad functional on Android. BUG=none TEST=build, unittests, chrome test application Review URL: https://breakpad.appspot.com/632002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1215 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Adding support for mips.gordana.cmiljanovic@imgtec.com2013-09-113-22/+45
| | | | | | | | | | | | | Support for mips cpu is added to all breakapad targets including unittests. BUG=none TEST=unittests Review URL: https://breakpad.appspot.com/614002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1212 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Update to build against the latest revision of linux_syscall_support.hmseaborn@chromium.org2013-09-051-3/+3
| | | | | | | | | | | | The prctl() calls must be updated following this LSS change: https://code.google.com/p/linux-syscall-support/source/detail?r=24 BUG=none TEST=build Review URL: https://breakpad.appspot.com/627002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1210 4c0a9323-5329-0410-9bdc-e9ce6186880e
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-02 20:24:14 +0000