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* Add new exception code for OOM generated from Chromium.Will Harris2016-07-191-0/+3
| | | | | | | | | See also https://codereview.chromium.org/2130293003/ for Chromium-side change and go/internal_cl_for_2130293003 for internal change. BUG=chromium:614440 R=mark@chromium.org Review URL: https://codereview.chromium.org/2160373002 .
* Server-side workaround to handle overlapping modules.Ivan Penkov2016-06-205-3/+79
| | | | | | | | | | | | | | This change is resolving an issue that was caused by the combination of: - Android system libraries being relro packed in N+. - Breakpad dealing with relro packed libraries in a hack way. This is a fix for http://crbug/611824. I also found an use-after-free issue (bug in Minidump::SeekToStreamType). I disallowed the MinidumpStreamInfo copy and assign constructors and the compiler detected another similar issue in Minidump::Print. Then I disabled the copy and assign constructors for most classes in minidump.h (just in case). There are a couple of classes where I couldn't disallow them (since assign is used). This will require a small refactor so I left it out of this CL. R=mark@chromium.org Review URL: https://codereview.chromium.org/2060663002 .
* [MIPS] Rename variable mips to mips32Veljko Mihailovic2016-05-251-1/+1
| | | | | | | | | | | | Renaming variable mips to mips32 since mips is already defined by the toolchain. BUG=Compile error in Chromium R=mark@chromium.org Review URL: https://codereview.chromium.org/2006393004 . Patch from Veljko Mihailovic <veljko.mihailovic@imgtec.com>.
* Revert "Write adjusted range back to module"Tao Bai2016-05-131-5/+0
| | | | | | | | | | | | | This is no right fix, we shouldn't allow module overlap. This reverts commit 4f417c8c0ffceb6c2516c6ef00cd91ca5746d852. BUG=606972 R=mark@chromium.org Review URL: https://codereview.chromium.org/1976683004 . Patch from Tao Bai <michaelbai@chromium.org>.
* Write adjusted range back to moduleTao Bai2016-05-031-0/+5
| | | | | | | | | | | | | | | | | In Android, the mmap could be overlapped by /dev/ashmem, we adjusted the range in https://breakpad.appspot.com/9744002/, but adjusted range isn't written back to module, this caused the corresponding module be dropped in BasicCodeModules copy constructor. This also fix a lot of 'unable to store module' warnings when dumping Android's minidump. BUG=606972 R=mark@chromium.org, wfh@chromium.org Review URL: https://codereview.chromium.org/1939333002 . Patch from Tao Bai <michaelbai@chromium.org>.
* Add a missing const to an accessor.Sebastien Marchand2016-04-141-1/+1
| | | | | | R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1882833004 .
* Add some new stream types to MDStreamTypeTed Mielczarek2016-04-131-0/+4
| | | | | | | | | | | | | | I ran minidump_dump on a dump from Firefox on my Windows 10 machine and noticed some streams that Breakpad didn't have names for. Looking in minidumpapiset.h in the Windows 10 SDK finds these values in MINIDUMP_STREAM_TYPE. There are also struct definitions for the stream data for some of them (all but JavaScriptData), but I don't have a particular need for those currently. R=mark@chromium.org BUG= Review URL: https://codereview.chromium.org/1884943002 .
* Support processing microdump for mips architectureVeljko Mihailovic2016-04-011-0/+2
| | | | | | | | | | Based on changes for ARM, ARM64 and X86, the support for MIPS and MIPS64 is added in microdump. TEST=microdump_stackwalk ~/microdump-mips32.dmp symbols/ BUG=microdump_stackwalk failing for mips architectures Review URL: https://codereview.chromium.org/1731923002/
* Add the TID to the CallStack.Sebastien Marchand2016-04-011-1/+11
| | | | | | R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1849933002 .
* Support processing microdumps for x86 architecture.Maria Mandlis2016-02-181-0/+1
| | | | | | | BUG=587536 R=primiano@chromium.org Review URL: https://codereview.chromium.org/1704243002 .
* Parse additional line introduced in the microdump format and containing the ↵Maria Mandlis2016-02-111-1/+9
| | | | | | | | | | | | | | | GPU infromation in the following format: G GL_VERSION|GL_VENDOR|GL_RENDERER. The GPU version, vendor and renderer are extracted during microdump parsing and populated in the appropriate fields in the SystemInfo struct. This is to match the changes introduced in crrev.com/1343713002 and crrev.com/1334473003 BUG=chromium:536769 R=primiano@chromium.org Review URL: https://codereview.chromium.org/1678463002 .
* Change MDCVInfoELF into something usable.Ted Mielczarek2016-02-102-6/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes MDCVInfoELF (which is currently unused, apparently a vestigal bit of code landed as part of Solaris support) into a supported CodeView format that simply contains a build id as raw bytes. Modern ELF toolchains support build ids nicely: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Developer_Guide/compiling-build-id.html It would be useful to have the original build ids of loaded modules in Linux minidumps, since tools like Fedora's darkserver allow querying by build id and the current Breakpad code truncates the build id to the size of a GUID, which loses information: https://darkserver.fedoraproject.org/ A follow-up patch will change the Linux minidump generation code to produce MDCVInfoELF in minidumps instead of MDCVInfoPDB70. This patch should be landed first to ensure that crash processors are able to handle this format before dumps are generated containing it. The full build id is exposed as the return value of Minidump::code_identifier(), which currently just returns "id" for modules in Linux dumps. For backwards-compatibility, Minidump::debug_identifier() continues to treat the build id as a GUID, so debug identifiers for existing modules will not change. BUG= R=mark@chromium.org Review URL: https://codereview.chromium.org/1675413002 .
* [mips64] Support for mips n64Mike Frysinger2016-02-062-0/+17
| | | | | | | | | | Adding remaining mips n64 support including stackwalker. BUG=None TEST=manually tested on Linux/Android R=vapier@chromium.org Review URL: https://codereview.chromium.org/1418453011 .
* Make minidump-2-core.cc build with -Wformat.Lei Zhang2016-01-061-0/+6
| | | | | | | | | | A=thakis@chromium.org BUG=chromium:574817 Original Review: https://codereview.chromium.org/1562983002/ R=thakis@chromium.org Review URL: https://codereview.chromium.org/1563043002 .
* Fix MSVC build (including on 2015), drop some workarounds for MSVC older ↵Ted Mielczarek2015-10-061-24/+0
| | | | | | | | | | | | | | | | | | | 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 .
* Add check for Linux minidump ending on bad write for exploitability rating.Liu.andrew.x@gmail.com2015-08-212-0/+15
| | | | | | | | | | | | | | | 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
* Add check for executable stack/heap when rating Linux exploitability.Liu.andrew.x@gmail.com2015-08-151-0/+3
| | | | | | | | | | | 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
* Fix format specifier in proc maps to support 32-bit architectures.Liu.andrew.x@gmail.com2015-08-131-2/+2
| | | | | | | | 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
* Remove some old unused code, add a missing includeted.mielczarek@gmail.com2015-08-131-0/+2
| | | | | | | | R=lei at https://codereview.chromium.org/1211963002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1484 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Allow Print() to be called by const instances of MinidumpLinuxMaps andLiu.andrew.x@gmail.com2015-08-121-2/+2
| | | | | | | | | | 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
* Change Print method of MinidumpLinuxMaps and MinidumpLinuxMapsList to printLiu.andrew.x@gmail.com2015-08-111-0/+3
| | | | | | | | contents of /proc/<pid>/maps instead of just the files mapped to memory. Review URL: https://codereview.chromium.org/1273123002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1481 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix potential null pointer dereference.Liu.andrew.x@gmail.com2015-07-311-4/+0
| | | | | | | | | | | | If a MinidumpLinuxMapsList was created and destroyed without its Read method, the program would have a segmentation fault because the destructor did not check for a null maps_ field. Additional changes include additional supplementary null checks, a potential memory leak fix, and some comment removal. Review URL: https://codereview.chromium.org/1271543002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1478 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add support for Linux memory mapping stream and remove ELF header usageLiu.andrew.x@gmail.com2015-07-282-2/+158
| | | | | | | | | | | | | | | | | | | | | | | | | | | when checking exploitability rating. Linux minidumps do not support MD_MEMORY_INFO_LIST_STREAM, meaning the processor cannot retrieve its memory mappings. However, it has its own stream, MD_LINUX_MAPS, which contains memory mappings specific to Linux (it contains the contents of /proc/self/maps). This CL allows the minidump to gather information from the memory mappings for Linux minidumps. In addition, exploitability rating for Linux dumps now use memory mappings instead of checking the ELF headers of binaries. The basis for the change is that checking the ELF headers requires the minidumps to store the memory from the ELF headers, while the memory mapping data is already present, meaning the size of a minidump will be unchanged. As a result, of removing ELF header analysis, two unit tests have been removed. Arguably, the cases that those unit tests check do not merit a high exploitability rating and do not warrant a solid conclusion that was given earlier. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1251593007 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1476 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix incorrect comment.Liu.andrew.x@gmail.com2015-07-271-1/+1
| | | | | | | | | | | The exploitability rating for a dump is EXPLOITABILITY_NOT_ANALYZED if the exploitability engine in not enabled, not EXPLOITABILITY_NONE. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1254333002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1475 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Use general instruction/stack pointer convenience method instead of manuallyLiu.andrew.x@gmail.com2015-06-304-0/+19
| | | | | | | | | | | | | | finding the instruction/stack pointer for exploitability rating. There was already a method that found the instruction pointer, so the files for exploitability ratings had repeated code. Also a method for finding the stack pointer is implemented in this CL. R=ivanpe@chromium.org Review URL: https://codereview.chromium.org/1210943005 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1468 4c0a9323-5329-0410-9bdc-e9ce6186880e
* [MIPS]: Use mcontext_t structure for MIPSrmcilroy@chromium.org2015-04-211-20/+2
| | | | | | | | | | | | | | This change removes user_regs_struct and user_fpregs_struct structures for mips and uses mcontext_t instead. R=fdegans@chromium.org, mark@chromium.org, rmcilroy@chromium.org Review URL: https://breakpad.appspot.com/3744002 Patch from Gordana Cmiljanovic <Gordana.Cmiljanovic@imgtec.com>. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1452 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add address and reason for IN_PAGE_ERROR.mark@chromium.org2015-04-101-0/+2145
| | | | | | | | | | | | | | ACCESS_VIOLATION and IN_PAGE_ERROR both specify read/write/dep flags and address. ACCESS_VIOLATION currently reports these, but IN_PAGE_ERROR does not. This change makes IN_PAGE_ERROR report this information as well, and also the additional NTSTATUS value for the underlying cause. Patch by bungeman@chromium.org Review URL: https://breakpad.appspot.com/1794002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1441 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Remove pointers from serialized file formatmdempsky@chromium.org2014-12-111-10/+28
| | | | | | | | | BUG=breakpad:621 R=thestig@chromium.org Review URL: https://breakpad.appspot.com/1764002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1410 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Microdumps: support aarch64 and lib mapping from APKprimiano@chromium.org2014-12-021-0/+4
| | | | | | | | | | | | | | | | | | - Filter modules by prot flags (only +x) not extensions. It wouldn't otherwise catch the case of Chrome mapping the library from the apk (which is mapped r-x but doesn't end in .so). - Use compile-time detection of target arch, in order to cope with multilib OSes, where uname() doesn't reflect the run-time arch. - Add OS information and CPU arch / count. - Add support for aarch64. - Add tests and stackwalk expectations for aarch64. - Fix a potential overflow bug in the processor. - Rebaseline the tests using smaller symbols. - Fix microdump_writer_unittest.cc on 32-bit host. BUG=chromium:410294 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1407 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Surfacing the process create time in google_breakpad::ProcessStateivanpe@chromium.org2014-11-253-6/+17
| | | | | | | | | | | | | | | | | | | | | | | | | and updating minidump_stackwalk to show process uptime. I tested this with a minidump from Chrome and I got a result that is inline with what the Windows debugger is showing for that dump: minidump_stackwalk output: -------------------------- Process uptime: 601 seconds WinDBG output: -------------- Process Uptime: 0 days 0:10:01.000 I didn't update the machine readable output of minidump_stackwalk on purpose in order to avoid breaking someone that uses it. It can be added later to the machine output if needed. R=mark@chromium.org Review URL: https://breakpad.appspot.com/7754002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1406 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Microdump processing implementationmmandlis@chromium.org2014-11-193-1/+128
| | | | | | | | | | | | According to design document: http://goo.gl/B3wIRN This is an initial implementation version, support ARM architecture only. BUG=chromium:410294 R=primiano@chromium.org Review URL: https://breakpad.appspot.com/5714003 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1403 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix Windows client compilation on mingw.ted.mielczarek@gmail.com2014-11-031-1/+1
| | | | | | A=Jacek Caban <jacek@codeweavers.com>, R=ted at http://breakpad.appspot.com/548002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1399 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Introduce stub microdump processor classes.mmandlis@chromium.org2014-09-101-0/+60
| | | | | | | | | | | | | Adds the interfaces for MicrodumpProcessor (very similar to MinidumpProcessor) and corresponding unittest stubs. These stubs are required for multi-side integration and to start rolling the updated processor library into the dependent projects. BUG=chromium:410294 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1372 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Refactoring in preparation for microdump processingmmandlis@chromium.org2014-09-088-105/+259
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1370 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add missing MD_MISCINFO_FLAGS1_BUILDSTRING. Revise documentation to clarifymark@chromium.org2014-06-031-11/+14
| | | | | | | | | | | | | that it is not enough to check the size of an MDRawMiscInfo stream to verify member validity, the flags1 field needs to be consulted as well. Update minidump_dump to correctly consider the validity of all fields in this structure. R=ivanpe@chromium.org Review URL: https://breakpad.appspot.com/3694002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1336 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Process minidumps generated on ARM64 in iOS apps.mark@chromium.org2013-11-232-0/+66
| | | | | | | | | | | Patch by Colin Blundell <blundell@chromium.org> BUG=542 Review URL: https://breakpad.appspot.com/704002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1236 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Generate minidumps for 64-bit ARM apps on iOS.mark@chromium.org2013-11-212-0/+142
| | | | | | | | | | | | | | | Adds an ARM64-specific definition of MDRawContext and support for writing out a minidump when running on ARM64. Additionally, extends the iOS minidump generator for NSExceptions to work on ARM64 as well as ARM. Patch by Colin Blundell <blundell@chromium.org> BUG=542 Review URL: https://breakpad.appspot.com/664002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1235 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add simple exploitability analysis for Linux crashes.mattdr.breakpad@gmail.com2013-10-291-33/+35
| | | | | | | | https://breakpad.appspot.com/622002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1226 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Adding stricter validation checks to various symbol parser functions.ivan.penkov@gmail.com2013-09-251-0/+58
| | | | | | | | | | | | | More specifically, the validation of the following record types is improved: - FILE records - FUNC records - Line record - PUBLIC records Adding unittests. Review URL: https://breakpad.appspot.com/632003 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1217 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Adding mips support for Android.gordana.cmiljanovic@imgtec.com2013-09-251-1/+1
| | | | | | | | | | | | | | 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.com2013-09-114-1/+247
| | | | | | | | | | | | | 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
* Create StackFrame::FRAME_TRUST_PREWALKED trust type.chrisha@chromium.org2013-08-231-6/+9
| | | | | | | | | | | | | This creates a new frame trust type for prewalked stack frames, as suggested in the review of https://breakpad.appspot.com/620002/. R=ted.mielczarek@gmail.com, mark@chromium.org Review URL: https://breakpad.appspot.com/621002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1208 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Allow setting a limit on the number of frames to be recovered by stack scanning.ted.mielczarek@gmail.com2013-08-191-2/+15
| | | | | | Patch by Julian Seward <jseward@acm.org> R=ted at https://bugzilla.mozilla.org/show_bug.cgi?id=894264 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1206 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Updating MDRawMiscInfo to support verions 3 and 4 of the ↵ivan.penkov@gmail.com2013-08-022-9/+111
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MINIDUMP_MISC_INFO_N structure. Added the necessary code for swapping and string conversion from UTF-16. Found and fixed a bug in MinidumpAssertion::Read where the max string length passed to UTF16codeunits was in bytes instead of UTF-16 chars. Tested with a minidump containing a version 3 structure to validate the string conversion routines. Interestingly enough the time_zone names does not appear to be abbreviation as the documentation was suggesting but full names, e.g. Eastern Standard Time: MDRawMiscInfo size_of_info = 232 flags1 = 0xf7 process_id = 0x54c4 process_create_time = 0x51a9323c process_user_time = 0x1 process_kernel_time = 0x0 processor_max_mhz = 3100 processor_current_mhz = 1891 processor_mhz_limit = 3100 processor_max_idle_state = 0x1 processor_current_idle_state = 0x1 The new fileds follow: process_integrity_level = 0x1000 process_execute_flags = 0x4d protected_process = 0 time_zone_id = 2 time_zone.bias = 300 time_zone.standard_name = Eastern Standard Time time_zone.daylight_name = Eastern Daylight Time Review URL: https://breakpad.appspot.com/617002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1204 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Detect corrupt symbol files during minidump processing. Recover from the ↵ivan.penkov@gmail.com2013-07-118-9/+40
| | | | | | | | | | | | | | | | | | | | | errors and use the good data if possible. More specifically: - Detect corrupt symbols during minidump processing and provide the list of modules with corrupt symbols in the ProcessState. This will allow listing the corrupt symbol files in the final crash report. - Skip and recover from symbol data parse errors - don't give up until 100 parse errors are seen. - In order to recover from '\0' (null terminator) in the middle of a symbol file, a couple of methods have to be updated to require both buffer pointer and length. Previously they required only a buffer pointer (char *) and the size of the buffer was evaluated using strlen which is not reliable when the data is corrupt. Most of the changes are due to these signature updates. - Added and updated unittests. Also, updated minidump_stackwalk to show a WARNING for corrupt symbols. Output looks like this: ... Loaded modules: 0x000da000 - 0x000dafff Google Chrome Canary ??? (main) 0x000e0000 - 0x0417dfff Google Chrome Framework 0.1500.0.3 (WARNING: Corrupt symbols, Google Chrome Framework, 4682A6B4136436C4BFECEB62D498020E0) 0x044a8000 - 0x04571fff IOBluetooth 0.1.0.0 ... Review URL: https://breakpad.appspot.com/613002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1200 4c0a9323-5329-0410-9bdc-e9ce6186880e
* This change is addressing a particularly nasty issue where the stackwalkerivan.penkov@gmail.com2013-06-271-2/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | doesn't see the correct thread stack memory. Instead, it loads garbage (from offset 0 of the minidump file - well that's not garbage, but it is not the stack memory region either) and attempts to walk it. A typical symptom of this issue is when you get a single stack frame after processing - the context frame - for which you don't need stack memory. This issue is caused by an invalid RVA in the memory descriptor stored inside the MINIDUMP_THREAD structure for the thread. Luckily, the invalid RVA is 0, and the start_of_memory_region appears to be correct, so this issue can be easily detected and the correct memory region can be loaded using an RVA specified in the MinidumpMemoryList. I couldn't find a reasonable description on MSDN regarding MINIDUMP_MEMORY_DESCRIPTOR.MINIDUMP_LOCATION_DESCRIPTOR having RVA of 0 except maybe for full dumps where the 64-bit version of the structure (MINIDUMP_MEMORY_DESCRIPTOR64) is used and it has no RVA at all. It has a 64-bit DataSize which if interpreted as the 32-bit structure will very likely result in 0 for the RVA: http://msdn.microsoft.com/en-us/library/windows/desktop/ms680384(v=vs.85).aspx Anyways, the dump that I looked at was not a full dump so 0 for RVA is a bit puzzling (at least easily detectable): ... Microsoft (R) Windows Debugger Version 6.2.9200.20512 X86 Copyright (c) Microsoft Corporation. All rights reserved. ... User Mini Dump File: Only registers, stack and portions of memory are available ... MINIDUMP_HEADER: Version A793 (62F0) NumberOfStreams 11 Flags 160 0020 MiniDumpWithUnloadedModules 0040 MiniDumpWithIndirectlyReferencedMemory 0100 MiniDumpWithProcessThreadData Review URL: https://breakpad.appspot.com/606002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1194 4c0a9323-5329-0410-9bdc-e9ce6186880e
* More robust stack walks when the IP address in the context frame is invalid ↵ivan.penkov@gmail.com2013-06-261-2/+9
| | | | | | | | | | | | | (or not in a known module). This is achieved by: 1. Extending the span of the scan for return address in the conext frame. Initially, I wanted to extend the span of the scan for all frames but then I noticed that there is code for ARM already that is extending the search only for the context frame. This kind of makes sense so I decided to reuse the same idea everywhere. 2. Attempting to restore the EBP chain after a successful scan for return address so that the stackwalker can switch back to FRAME_TRUST_CFI for the rest of the frames when possible. I also fixed the lint errors in the files touched. Review URL: https://breakpad.appspot.com/605002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1193 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Treat warnings as error and fix most level 4 warnings in the breakpad ↵ivan.penkov@gmail.com2013-06-041-2/+2
| | | | | | | | | | | windows client projects. Some of the lint errors in the files touched by this change were also fixed. BUG=533 Review URL: https://breakpad.appspot.com/601002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1189 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Make x86-64 stack walking work for Native Client minidumpsmseaborn@chromium.org2013-05-081-4/+5
| | | | | | | | | | | | | | For NaCl, a stack walker should ignore the top 32 bits of %rip, %rsp and %rbp, otherwise it will try to read from %r15-extended stack addresses and look up symbol info for %r15-extended code addresses, which will fail. BUG=https://code.google.com/p/nativeclient/issues/detail?id=3424 TEST=tested manually with a NaCl minidump Review URL: https://breakpad.appspot.com/591002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1173 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add MD_OS_NACL platform_id value for identifying NaCl minidumpsmseaborn@chromium.org2013-05-061-1/+2
| | | | | | | | | | | | | | Change minidump-2-core to accept minidumps with this platform_id value rather than rejecting them as non-Linux dumps. Add a missing "break" for a MD_OS_PS3 case. BUG= https://code.google.com/p/nativeclient/issues/detail?id=3424 TEST= tested with work-in-progress NaCl minidump generator Review URL: https://breakpad.appspot.com/590002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1172 4c0a9323-5329-0410-9bdc-e9ce6186880e
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-16 02:57:38 +0000