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* Fix ExploitabilityLinuxUtilsTest::DisassembleBytesTest to not fail when temp ↵Ted Mielczarek2015-11-301-1/+3
| | | | | | | | | file ends with 0 R=ivanpe@chromium.org BUG=https://bugs.chromium.org/p/google-breakpad/issues/detail?id=668 Review URL: https://codereview.chromium.org/1482363003 .
* Rename src/tools/mac/dump_syms binary to dump_syms_mac in autotools build to ↵Ted Mielczarek2015-11-252-265/+265
| | | | | | | | fix make install R=mark@chromium.org Review URL: https://codereview.chromium.org/1474673004 .
* dump_syms: add a -v flagMike Frysinger2015-11-111-1/+16
| | | | | | | | | | | | dump_syms generates a lot of warnings. This CL puts logging behind a command line flag URL=https://android-review.googlesource.com/181558 BUG=b:25460551 BUG=google-breakpad:441 R=mark@chromium.org Review URL: https://codereview.chromium.org/1437763002 .
* build: detect the right `ar` toolMike Frysinger2015-11-115-6/+511
| | | | | | | | | | | Use automake's AM_PROG_AR helper instead of the default of hardcoding `ar` all the time. When cross-compiling, this can often be the wrong one to use. BUG=google-breakpad:519 R=ted.mielczarek@gmail.com Review URL: https://codereview.chromium.org/1435813002 .
* gitignore: add mac/dump_symsMike Frysinger2015-11-111-0/+1
| | | | BUG=google-breakpad:670
* autotools: refresh config.{sub,guess}Mike Frysinger2015-11-112-8/+17
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* Don't include libdisasm.a in libbreakpad.aMike Frysinger2015-11-112-4/+1
| | | | | | | | | | | | | | libbreakpad.a pointlessly contains libdisasm.a This looks like a left-over from when libtool was used Since this has no useful effect (as the linker doesn't recursively search archive members which aren't objects), anything which requires the objects in libdisasm.a must already be linking with it, so simply remove it. BUG=https://code.google.com/p/google-breakpad/issues/detail?id=484 Review URL: https://codereview.chromium.org/1399003002 .
* Fix file descriptor leaks in linux CrashGenerationServerMike Frysinger2015-11-111-0/+3
| | | | | | R=ted.mielczarek@gmail.com Review URL: https://codereview.chromium.org/1137423004 .
* Install headers under client/linux/dump_writer_commonMike Frysinger2015-11-112-25/+59
| | | | | | | | | | | | Automake did not install headers under c/l/dwc, which caused compile errors when building against an installed breakpad, since other headers (e.g. client/linux/handler/exception_handler.h) depended on it. This commit adds these headers to the list of automake installed files. R=vapier@chromium.org Review URL: https://codereview.chromium.org/1127393006 .
* Make dump_syms buildable under newer versions of Xcode.Boris Vidolov2015-11-101-0/+4
| | | | | | | R=mark@chromium.org BUG= Review URL: https://codereview.chromium.org/1438483002 .
* Android: Workaround for ftruncate() issues.Lei Zhang2015-11-051-3/+69
| | | | | | | | | | | | | | | | | | This works around a bug in M that prevents Breakpad from using ftruncate() in the renderer process. To do this, skip the calls to ftruncate() when allocating bigger minidump files and strictly depends on write() to append to the end. It might be less efficient but this is probably less of an issue on SD cards. It is much better than not getting crash reports. BUG=542840 Original CL: https://codereview.appspot.com/273880044/ Original CL Author: acleung@chromium.org Review URL: https://codereview.chromium.org/1407233016 .
* Issue in StackwalkerAMD64::GetCallerByFramePointerRecovery.Ivan Penkov2015-10-153-9/+165
| | | | | | | | | | | | | | There is an issue in StackwalkerAMD64::GetCallerByFramePointerRecovery. Occasionally it produces invalid frames (instruction pointer == 0) which prevents the AMD64 stack walker from proceeding to do stack scanning and instead leads to premature termination of the stack walking process. For more details: http://crbug/537444 BUG= R=mark@chromium.org Review URL: https://codereview.chromium.org/1408973002 .
* Only release current_breakpad_ if it is defined.Benjamin Lerman2015-10-141-1/+1
| | | | | | R=mark@chromium.org Review URL: https://codereview.chromium.org/1402453006 .
* Revert "[Docs] Add wiki content to Markdown docs"Mike Frysinger2015-10-072-31/+0
| | | | | | | | | | | This reverts commit 7ed2476eea2c2a50fd40ec3e711dcb311d472753. This was supposed to be committed to the linux-syscall-support project. The two CLs landing at the sametime confused me. Note: LSS has been updated via commit 08056836f2b4a5747daff75435d10d6. Review URL: https://codereview.chromium.org/1395743002 .
* Fix Windows crash_generation_server for debug builds without -D_DEBUGTed Mielczarek2015-10-071-1/+1
| | | | | | | | | | | | Debug Gecko builds don't build with -D_DEBUG, so the ifdef in crash_generation_server doesn't work right. The MSDN documentation for assert says that it's enabled based on the absence of the NDEBUG define, so using that seems sensible. R=thestig@chromium.org BUG= Review URL: https://codereview.chromium.org/1398453002 .
* Support for multiple upload files in CrashReportSender/HTTPUploadDavid Major2015-10-069-58/+63
| | | | | | | | A=David Major <dmajor@mozilla.com> BUG=https://bugzilla.mozilla.org/show_bug.cgi?id=1048091 R=ted@mielczarek.org Review URL: https://bugzilla.mozilla.org/show_bug.cgi?id=1048091 .
* Fix MSVC build (including on 2015), drop some workarounds for MSVC older ↵Ted Mielczarek2015-10-067-39/+15
| | | | | | | | | | | | | | | | | | | than 2013. The Windows client gyp files were missing proc_maps_linux.cc for the unittest build. Adding that revealed some build errors due to it unconditionally including <inttypes.h>. Removing the workarounds in breakpad_types.h (and a few other places) made that build, which means that Visual C++ 2013 is now our minimum supported version of MSVC. Additionally I tried building with VC++ 2015 and fixed a few warnings (which were failing the build because we have /WX enabled) to ensure that that builds as well. BUG=https://code.google.com/p/google-breakpad/issues/detail?id=669 R=mark@chromium.org Review URL: https://codereview.chromium.org/1353893002 .
* Increasing the Breakpad stack walker max scan limit from 30 to 40.Ivan Penkov2015-10-054-6/+6
| | | | | | | | | | | | | | | | | | | | | Chrome started hitting some crashes in v8 jitted code which happens to be non ABI compliant and debuggers (including WinDBG) are unable to produce meaningful stack traces. The Breakpad stack walker has some builtin heuristics to deal with such cases. More specifically, when unable to find a good parent frame, it scans the raw stack to find a suitable parent frame. The max scan size was set at 30 pointers which was (apparently) not enough to recover in this case. I'm increasing it to 40 pointers. I confirmed that at 34 pointers it was able to recover however I'm setting it to 40 in order to it some slack. I needed to update two unittests which were expecting the previous scan limit. BUG= R=mark@chromium.org Review URL: https://codereview.chromium.org/1379433005 .
* [mac] Teach dump_syms to handle additional zerofill sectionsPavel Labath2015-09-301-1/+3
| | | | | | | | | | | | | | This patch allows dump_syms to handle S_THREAD_LOCAL_ZEROFILL and S_GB_ZEROFILL section in the same way as the more common S_ZEROFILL section. Previously, dump_syms would fail to dump a binary containing a __DATA,__thread_bss section, because it tried to look up its data (and failed). R=mark@chromium.org Review URL: https://codereview.chromium.org/1369233003 . Patch from Pavel Labath <labath@google.com>.
* Fix automake files after README.md -> README renamePrimiano Tucci2015-09-282-2/+2
| | | | | | | | | | | Minor followup to crrev.com/1357773004 and crrev.com/1361993002 which moved the README and forgot to update the automake files. This is to make "./configure && make" work. TBR=mark@chromium.org Review URL: https://codereview.chromium.org/1368363002 .
* Add GPU fingerprint information to breakpad microdumps.Primiano Tucci2015-09-287-81/+164
| | | | | | | | | | | | | | | | | | 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 .
* [Docs] Add wiki content to Markdown docsMike Frysinger2015-09-242-0/+31
| | | | | | | BUG=none R=vapier@chromium.org, mseaborn@chromium.org Review URL: https://codereview.chromium.org/1356253003 .
* Update configure to look for README.md instead of READMEMark Mentovai2015-09-233-5/+5
| | | | | | | | | This is required after daed3a43836e. configure won't run as-is, reported in https://codereview.chromium.org/1357773004/. R=andybons@chromium.org Review URL: https://codereview.chromium.org/1361993002 .
* [Docs] add markdown docs (converted from Wiki)Andy Bonventre2015-09-2217-37/+2948
| | | | | | | | | | BUG=none R=mark CC=google-breakpad-dev@googlegroups.com Review URL: https://codereview.chromium.org/1357773004 . Patch from Andy Bonventre <andybons@chromium.org>.
* 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 .
* Fixup a bad strcmp call landed in previous commitTed Mielczarek2015-09-161-1/+1
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* Fix Mac Breakpad host tools to build in Linux cross-compileTed Mielczarek2015-09-1635-201/+4533
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're working on building our Firefox Mac builds as a Linux cross-compile (https://bugzilla.mozilla.org/show_bug.cgi?id=921040) and we need symbol dumping to work. This change ports the Mac dump_syms tool to build and work on Linux. I've tested it and it produces identical output to running the tool on Mac. The bulk of the work here was converting src/common/mac/dump_syms.mm and src/tools/mac/dump_syms/dump_syms_tool.mm from ObjC++ to C++ and removing their use of Foundation classes in favor of standard C/C++. This won't compile out-of-the-box on Linux, it requires some Mac system headers that are not included in this patch. I have those tentatively in a separate patch to land in Gecko (http://hg.mozilla.org/users/tmielczarek_mozilla.com/mc/rev/5fb8da23c83c), but I wasn't sure if you'd be interested in having them in the Breakpad tree. We could almost certainly pare down the set of headers included there, I didn't spend too much time trying to minimize them (we primarily just need the Mach-O structs and a few associated bits). I just realized that this patch is missing updating the XCode project files (ugh). I'll fix that up in a bit. R=mark@chromium.org BUG=https://bugzilla.mozilla.org/show_bug.cgi?id=543111 Review URL: https://codereview.chromium.org/1340543002 .
* Update gitignore to ignore more GYP thingsTed Mielczarek2015-09-111-0/+5
| | | | | | | | | Now that we're using gclient everywhere, the hook to run gyp on the Windows projects gets run on Linux, so we get Makefiles strewn around the tree. R=vapier@chromium.org Review URL: https://codereview.chromium.org/1339653002 .
* solaris: fix spurious ;Mike Frysinger2015-09-111-1/+1
| | | | | | | | | | As reported in the issue tracker, building on Solaris 8 fails: .../src/common/solaris/guid_creator.cc:69: error: extra `;' BUG=google-breakpad:251 R=ted.mielczarek@gmail.com Review URL: https://codereview.chromium.org/1333243002 .
* README: update dev documents w/new git flowMike Frysinger2015-09-111-19/+13
| | | | | | | BUG=chromium:502355 R=thestig@chromium.org Review URL: https://codereview.chromium.org/1335483002 .
* deps: switch lss to gitMike Frysinger2015-09-111-1/+2
| | | | | | | | BUG=524777 TEST=`gclient sync` switches lss to git R=thestig@chromium.org Review URL: https://codereview.chromium.org/1331783002 .
* Fix regression on x86 for "Fix compile error with Windows clang"Will Harris2015-09-031-6/+5
| | | | | | R=thakis@chromium.org Review URL: https://codereview.chromium.org/1318013002 .
* Change codereview.settings to point to new repo URL.Vadim Shtayura2015-09-011-1/+1
| | | | | | | | | It changes "Committed: <URL>" in CLs to point to Git repo browser. BUG=chromium:502355 R=mark@chromium.org Review URL: https://codereview.chromium.org/1319083007 .
* The "CPU architecture" field is being filled from the wrong part ofmmandlis@chromium.org2015-08-266-25/+106
| | | | | | | | | | | | | | | | | | | the microdump. The microdump OS/arch line looks like: O A arm 04 armv7l 3.4.0-perf-g4d6e88e #1 SMP PREEMPT Mon Mar 30 19:09:30 2015 and currently the field that says "armv7l" or "aarch64" is being used to fill in the CPU arch field in crash. The problem is that on a 64-bit device this field *always* says "aarch64" even when running in a 32-bit process, and so currently the crash reports for aarch64 are a mix of 32-bit and 64-bit crashes. We should be using the first field instead, which just says "arm" or "arm64" and reflects the actual version of webview (32-bit or 64-bit) which is running. BUG= R=primiano@chromium.org Review URL: https://codereview.chromium.org/1306983003 . git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1498 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add check for Linux minidump ending on bad write for exploitability rating.Liu.andrew.x@gmail.com2015-08-2113-8/+584
| | | | | | | | | | | | | | | If a crash occurred as a result to a write to unwritable memory, it is reason to suggest exploitability. The processor checks for a bad write by disassembling the command that caused the crash by piping the raw bytes near the instruction pointer through objdump. This allows the processor to see if the instruction that caused the crash is a write to memory and where the target of the address is located. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1273823004 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1497 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Don't use strtok_s for mingw buildsted.mielczarek@gmail.com2015-08-203-2/+4
| | | | | | | R=ivanpe at https://codereview.chromium.org/1292503005/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1496 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add user_regs_struct and user_fpsimd_struct for aarch64 on Android.rmcilroy@chromium.org2015-08-201-18/+23
| | | | | | | | | | | | | | | | | | Android's sys/user.h is missing user_regs_struct and user_fpsimd_struct. Add them to the Android specific user.h used by breakpad to workaround Android / glibc compatibility issues. A bug has been filed on the Android NDK team to add the missing structures to the NDK, at which point this hack can be removed. Also remove the mxcsr_mask hack on x64, which is no longer required since we have moved to the r10d NDK which fixes this issue. R=primiano@chromium.org Review URL: https://codereview.chromium.org/1291983003 . git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1495 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix compile error with Windows clang.wfh@chromium.org2015-08-191-4/+7
| | | | | | | | | | | | | | | This change fixes the following errors shown during compile with Windows clang: error: cannot pass non-trivial object of type 'ATL::CComBSTR' to variadic function; expected type from format string was 'wchar_t *' [-Wnon-pod-varargs] Original CL: https://codereview.chromium.org/1252913009/ BUG=https://code.google.com/p/google-breakpad/issues/detail?id=662 Review URL: https://codereview.chromium.org/1307463003 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1494 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix inttypes format macros in src/processor/proc_maps_linux.ccprimiano@chromium.org2015-08-191-1/+4
| | | | | | | | | | | | crrev.com/1298443002 has introduced a build failure by re-defining __STDC_FORMAT_MACROS. Fixing it. BUG= R=mark@chromium.org, ted.mielczarek@gmail.com Review URL: https://codereview.chromium.org/1303493003 . git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1493 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Remove obsolete seccomp_unwinder for legacy (pre-BPF) sandboxprimiano@chromium.org2015-08-186-224/+0
| | | | | | | | | | | | | | | | | | | | | The PopSeccompStackFrame was introduced to deal with stack frames originated in the legacy seccomp sandbox. The only user of that sandbox was Google Chrome, but the legacy sandbox has been deprecated in 2013 (crrev.com/1290643003) in favor of the new bpf sandbox. Removing this dead code as it has some small bound checking bug which causes occasional crashes in WebView (which are totally unrelated to the sandbox). Note: this will require a corresponding change in the chromium GYP/GN build files to roll. BUG=665,chromium:477444 R=jln@chromium.org, mark@chromium.org, torne@chromium.org Review URL: https://codereview.chromium.org/1299593003 . git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1492 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix proc_maps_linux compile for non-Linuxted.mielczarek@gmail.com2015-08-171-4/+2
| | | | | | | R=ivanpe at https://codereview.chromium.org/1298443002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1491 4c0a9323-5329-0410-9bdc-e9ce6186880e
* [microdump] Move microdump writes to the crash ring-buffer logprimiano@chromium.org2015-08-174-3/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* [microdump] Fix hw architecture indication in build fingerprint lineprimiano@chromium.org2015-08-172-15/+60
| | | | | | | | | | | | | | | | r1456 introduced the possibility to customize the OS-line of the microdump, enabling to replace, in the case of android, the generic uname() info with the Android build fingerprint. While doing that, it mistakenly removed the HW architecture indication from the format. See crbug.com/520075 for more details. BUG=chromium:520075 R=mmandlis@chromium.org, torne@chromium.org Review URL: https://codereview.chromium.org/1288313002 . git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1489 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add check for executable stack/heap when rating Linux exploitability.Liu.andrew.x@gmail.com2015-08-156-3/+33
| | | | | | | | | | | This CL also consequentially adds a public method to get the number of mappings in a Linux minidump. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1291603002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1488 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add check to see if stack pointer is off the stack according to the memoryLiu.andrew.x@gmail.com2015-08-155-1/+33
| | | | | | | | | | mappings when rating Linux exploitability. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1286033002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1487 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix format specifier in proc maps to support 32-bit architectures.Liu.andrew.x@gmail.com2015-08-132-6/+6
| | | | | | | | R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1288323003 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1486 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Actually remove removed filested.mielczarek@gmail.com2015-08-133-0/+0
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1485 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Remove some old unused code, add a missing includeted.mielczarek@gmail.com2015-08-138-849/+91
| | | | | | | | R=lei at https://codereview.chromium.org/1211963002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1484 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix format specifier in proc maps to support 32-bit architectures.Liu.andrew.x@gmail.com2015-08-121-1/+1
| | | | | | | | R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1280853003 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1483 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Allow Print() to be called by const instances of MinidumpLinuxMaps andLiu.andrew.x@gmail.com2015-08-122-4/+4
| | | | | | | | | | MinidumpLinuxMapsList. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1287803002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1482 4c0a9323-5329-0410-9bdc-e9ce6186880e
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