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* fix pointer style to match the style guideMike Frysinger2020-07-151-5/+5
| | | | | | | | | | We do this in a lot of places, but we're inconsistent. Normalize the code to the Google C++ style guide. Change-Id: Ic2aceab661ce8f6b993dda21b1cdf5d2198dcbbf Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2262932 Reviewed-by: Sterling Augustine <saugustine@google.com> Reviewed-by: Mark Mentovai <mark@chromium.org>
* linux, client: set module name from DT_SONAMEJoshua Peraza2019-10-301-17/+27
| | | | | | | | | | | | | | | | | | 3e56ef9d changed dump_syms to set the module name from DT_SONAME expecting that clients were already using DT_SONAME when it was present. The Breakpad client previously only used DT_SONAME as the name for a module if it detected that it was likely mapped from a zip file. This patch updates the Breakpad Linux client to always use the DT_SONAME in minidumps if it's present. Also included are changes to address comments that were missed from that review. Bug: 1016924 Change-Id: I4aae8c05e6793d4b0598049a8964ddd4cb0c6194 Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1889231 Reviewed-by: Mark Mentovai <mark@chromium.org> Reviewed-by: Mike Frysinger <vapier@chromium.org>
* linux, dump_syms: set module name from DT_SONAMEJoshua Peraza2019-10-241-43/+0
| | | | | | | | | | | | | The Breakpad and Crashpad clients will use an object's DT_SONAME as the name for a module if it exists. Previously, linux dump_syms would assume the basename of an input elf file matches that value, causing symbol lookups to fail if they were mismatched. This patch updates dump_syms to use DT_SONAME as the module name, if present. Bug: 1016924 Change-Id: I5eff0cf06c703841df3fb552cb5a8e1e50a20c64 Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1876763 Reviewed-by: Mike Frysinger <vapier@chromium.org>
* Linux: Write out si_code for SIGBUS exceptions.Lei Zhang2018-04-031-0/+7
| | | | | | | | | Store the information in the exception record's exception_information field. Change-Id: Ie215cae2f070fdab63c3d05cc1bc4fb4b7b095fa Reviewed-on: https://chromium-review.googlesource.com/990799 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Fix minidump on ChromeOSYunlian Jiang2017-12-201-8/+25
| | | | | | | | | | | | | Chrome somehow changed the memory mapping with hugepage enabled. This makes the hack in CrOSPostProcessMappings more general. BUG=chromium:793452 TEST=with this patch on Chromium, minidump_dump *dmp shows the right information on chrome Change-Id: Iff58bf1a712a6e66cbd2d813422db7549a3080a5 Reviewed-on: https://chromium-review.googlesource.com/837963 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Move main executable handling out of procmaps parser loop.Peter Collingbourne2017-10-171-19/+21
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* Add crash reason and address to microdumps.Tobias Sargeant2017-08-141-0/+72
| | | | | | | | | | | | 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>
* Merge exec and non-exec segments while merging executable bit.Peter Collingbourne2017-05-261-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Simplify ELF parser code.Peter Collingbourne2017-05-251-5/+4
| | | | | | | | | | | | | 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>
* Make stack sanitization elide pointers to non-executable mappings.Tobias Sargeant2017-02-231-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Sanitize dumped stacks to remove data that may be identifiable.Tobias Sargeant2017-01-311-3/+102
| | | | | | | | | | | | | | | 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 moduleTobias Sargeant2017-01-181-0/+40
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* Recover memory mappings before writing dump on ChromeOSTing-Yuan (Leo) Huang2016-07-181-0/+172
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Linux, breakpad relies on /proc/[pid]/maps to associate symbols from addresses. ChromeOS' hugepage implementation replaces some segments with anonymous private pages, which is a restriction of current implementation in Linux kernel at the time of writing. Thus, breakpad can no longer symbolize addresses from those text segments replaced by hugepages. This patch tries to recover the mappings. Because hugepages are always inserted in between some .text sections, it tries to infer the names and offsets of the segments, by looking at segments immediately precede and succeed them. For example, a text segment before hugepage optimization 02001000-03002000 r-xp /opt/google/chrome/chrome can be broken into 02001000-02200000 r-xp /opt/google/chrome/chrome 02200000-03000000 r-xp 03000000-03002000 r-xp /opt/google/chrome/chrome BUG=crbug.com/628040 R=mark@chromium.org Review URL: https://codereview.chromium.org/2161713002 . Patch from Ting-Yuan (Leo) Huang <laszio@chromium.org>.
* Revert of Extend mapping merge to include reserved but unused mappings. ↵Primiano Tucci2016-04-281-18/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (https://breakpad.appspot.com/7714003) Reason for revert: It is causing breakpad crash reports to be invalid (see the associated bug). Merging empty holes in r-x mappings was originally introduced in https://breakpad.appspot.com/7714003 to deal with the first generation of relro packing, which could introduce holes within a .so mapping: [libchrome.so] [guard region] [libchrome.so] However, the logic is broken for the case of two *different* adjacent .so mappings with a guard region in the middle: [libfoo.so] [guard region] [libchrome.so] In this case the guard region is mistakenly associated with libfoo.so, but that is not the right thing to do. In fact, the second generation of rerlo packing added the guard region to prevent mmaps from overlapping and to give room for the non-zero vaddr of relro-packed libraries, which require an anticipated load bias. As the first generation of relro packing is not used anymore, there is no reason to keep this buggy code, which causes failures in decoding crashes where an arbitrary library is mapped immediately before a rerlo packed library. Original issue's description: > Extend mapping merge to include reserved but unused mappings. > > When parsing /proc/pid/maps, current code merges adjacent entries that > refer to the same library and where the start of the second is equal to > the end of the first, for example: > > 40022000-40025000 r-xp 00000000 b3:11 827 /system/lib/liblog.so > 40025000-40026000 r--p 00002000 b3:11 827 /system/lib/liblog.so > 40026000-40027000 rw-p 00003000 b3:11 827 /system/lib/liblog.so > > When the system linker loads a library it first reserves all the address > space required, from the smallest start to the largest end address, using > an anonymous mapping, and then maps loaded segments inside that reservation. > If the loaded segments do not fully occupy the reservation this leaves > gaps, and these gaps prevent merges that should occur from occurring: > > 40417000-4044a000 r-xp 00000000 b3:11 820 /system/lib/libjpeg.so > > 4044a000-4044b000 ---p 00000000 00:00 0 > 4044b000-4044c000 r--p 00033000 b3:11 820 /system/lib/libjpeg.so > 4044c000-4044d000 rw-p 00034000 b3:11 820 /system/lib/libjpeg.so > > Where the segments that follow this gap do not contain executable code > the failure to merge does not affect breakpad operation. However, where > they do then the merge needs to occur. Packing relocations in a large > library splits the executable segment into two, resulting in: > > 73b0c000-73b21000 r-xp 00000000 b3:19 786460 > /data/.../libchrome.2160.0.so > > 73b21000-73d12000 ---p 00000000 00:00 0 > 73d12000-75a90000 r-xp 00014000 b3:19 786460 > /data/.../libchrome.2160.0.so > 75a90000-75c0d000 rw-p 01d91000 b3:19 786460 > /data/.../libchrome.2160.0.so > > Here the mapping at 73d12000-75a90000 must be merged into 73b0c000-73b21000 > so that breakpad correctly calculates the base address for text. > > This change enables the full merge by also merging anonymous maps which > result from unused reservation, identified as '---p' with offset 0, and > which follow on from an executable mapping, into that executable mapping. > > BUG=chromium:394703 BUG=chromium:499747 R=primiano@chromium.org, rmcilroy@chromium.org Review URL: https://codereview.chromium.org/1923383002 .
* Switch the Linux minidump writer to use MDCVInfoELF for CV data.Ted Mielczarek2016-04-051-2/+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 .
* Don't merge the mappings if their exec bit are different.Primiano Tucci2016-03-081-1/+2
| | | | | | | BUG=585534 R=primiano@chromium.org Review URL: https://codereview.chromium.org/1750033002 .
* Add an optional root prefix to Linux dumpersDominik Laskowski2016-03-071-24/+24
| | | | | | | | | | | The Linux dumpers use absolute paths for shared libraries referenced by dumps, so they fail to locate them if the crash originated in a chroot. This CL enables callers to specify a root prefix, which is prepended to mapping paths before opening them. BUG=chromium:591792 TEST=make check Review URL: https://codereview.chromium.org/1761023002/
* Adjust breakpad module size to match adjusted start_addr.rmcilroy@chromium.org2015-06-301-4/+9
| | | | | | | | | | | | | | | | | | When changing a module's start_addr to account for Android packed relocations, also adjust its size field so that the apparent module end addr calculated by the breakpad processor does not alter. Ensures that the mapping entry from a packed library is consistent with that which an unpacked one would produce. BUG=499747 R=primiano@chromium.org, rmcilroy@chromium.org Review URL: https://codereview.chromium.org/1211863002. Patch from Simon Baldwin <simonb@chromium.org>. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1465 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Update breakpad for Android packed relocations.rmcilroy@chromium.org2015-06-191-0/+125
| | | | | | | | | | | | | | | | | | | | | | | | | | Shared libraries containing Android packed relocations have a load bias that differs from the start address in /proc/$$/maps. Current breakpad assumes that the load bias and mapping start address are the same. Fixed by changing the client to detect the presence of Android packed relocations in the address space of a loaded library, and adjusting the stored mapping start address of any that are packed so that it contains the linker's load bias. For this to work properly, it is important that the non-packed library is symbolized for breakpad. Either packed or non-packed libraries may be run on the device; the client detects which has been loaded by the linker. BUG=499747 R=primiano@chromium.org, rmcilroy@chromium.org Review URL: https://codereview.chromium.org/1189823002. Patch from Simon Baldwin <simonb@chromium.org>. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1459 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Refactor .so name detection logic in minidump/linux_dumper.primiano@chromium.org2014-10-171-3/+43
| | | | | | | | | | | | | | | | This is a refactoring of the logic which determines the module name and path for a given MappingInfo in minidump_writer.cc. Such logic, which will be soon shared also with the upcoming microdump_writer.cc, is simply being moved to linux_dumper.cc, extracting a GetMappingEffectiveNameAndPath method. No behavioral change is intended. BUG=chromium:410294 R=thestig@chromium.org Review URL: https://breakpad.appspot.com/7734002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1392 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix clang compilation error introduced in r1380.rmcilroy@chromium.org2014-09-221-1/+1
| | | | | | | | | | | | | | | | Fixes: .../linux_dumper.cc:308:25: error: address of array 'module->name' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion] module->name && module->name[0] == '/' && ~~~~~~~~^~~~ BUG=chromium:394703 R=rmcilroy@chromium.org Review URL: https://breakpad.appspot.com/5724002 Patch from Simon Baldwin <simonb@chromium.org>. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1384 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Extend mapping merge to include reserved but unused mappings.rmcilroy@chromium.org2014-09-191-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When parsing /proc/pid/maps, current code merges adjacent entries that refer to the same library and where the start of the second is equal to the end of the first, for example: 40022000-40025000 r-xp 00000000 b3:11 827 /system/lib/liblog.so 40025000-40026000 r--p 00002000 b3:11 827 /system/lib/liblog.so 40026000-40027000 rw-p 00003000 b3:11 827 /system/lib/liblog.so When the system linker loads a library it first reserves all the address space required, from the smallest start to the largest end address, using an anonymous mapping, and then maps loaded segments inside that reservation. If the loaded segments do not fully occupy the reservation this leaves gaps, and these gaps prevent merges that should occur from occurring: 40417000-4044a000 r-xp 00000000 b3:11 820 /system/lib/libjpeg.so > 4044a000-4044b000 ---p 00000000 00:00 0 4044b000-4044c000 r--p 00033000 b3:11 820 /system/lib/libjpeg.so 4044c000-4044d000 rw-p 00034000 b3:11 820 /system/lib/libjpeg.so Where the segments that follow this gap do not contain executable code the failure to merge does not affect breakpad operation. However, where they do then the merge needs to occur. Packing relocations in a large library splits the executable segment into two, resulting in: 73b0c000-73b21000 r-xp 00000000 b3:19 786460 /data/.../libchrome.2160.0.so > 73b21000-73d12000 ---p 00000000 00:00 0 73d12000-75a90000 r-xp 00014000 b3:19 786460 /data/.../libchrome.2160.0.so 75a90000-75c0d000 rw-p 01d91000 b3:19 786460 /data/.../libchrome.2160.0.so Here the mapping at 73d12000-75a90000 must be merged into 73b0c000-73b21000 so that breakpad correctly calculates the base address for text. This change enables the full merge by also merging anonymous maps which result from unused reservation, identified as '---p' with offset 0, and which follow on from an executable mapping, into that executable mapping. BUG=chromium:394703 R=rmcilroy@chromium.org, thestig@chromium.org Review URL: https://breakpad.appspot.com/7714003 Patch from Simon Baldwin <simonb@chromium.org>. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1380 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Chrome on Android now supports loading the shared library directly from the ↵rmcilroy@chromium.org2014-07-221-4/+83
| | | | | | | | | | | | | | | | | | | | | | APK file. This patch makes two changes to breakpad to enable crash reporting to work correctly when the library is inside another file (an archive): - Do not filter mappings which map an executable at a non-zero offset. - If such an executable is mapped look in the ELF information for the shared object name and use that name in the minidump. Note this change doesn't care about the archive format and isn't Android specific (though loading the shared library this way is currently only done on Android). BUG=390618 R=thestig@chromium.org Review URL: https://breakpad.appspot.com/7684002 Patch from Anton Carver <anton@chromium.org>. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1355 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fixing several instances of std::vector::operator[] out of range accessivan.penkov@gmail.com2013-05-211-3/+6
| | | | | | Review URL: https://breakpad.appspot.com/597002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1187 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Ensure a proper LinuxDumper::crash_thread_ valueted.mielczarek@gmail.com2013-05-171-1/+1
| | | | | | Patch by Mike Hommey <mh@glandium.org>, R=me at https://breakpad.appspot.com/582002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1185 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Get the complete linux gate mapping instead of only one pageted.mielczarek@gmail.com2013-03-291-3/+2
| | | | | | | A=Mike Hommey <mh@glandium.org> R=ted at https://breakpad.appspot.com/542002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1134 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Minidumps never contain MD_LINUX_DSO_DEBUG info when breakpad is in a shared ↵ted.mielczarek@gmail.com2012-09-191-45/+23
| | | | | | | | | library A=Mike Hommey <mh@glandium.org> R=ted at http://breakpad.appspot.com/422002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1044 4c0a9323-5329-0410-9bdc-e9ce6186880e
* SORRY. It seems I've screwed up my commit for ↵digit@chromium.org2012-08-031-8/+8
| | | | | | | | | | http://breakpad.appspot.com/411002/, since revision 1001 only contains the new src/client/linux/linux_libc_support.cc and none of the other required files. I'm not sure what happened, but I'm re-uploading the patch has another issue. Review URL: https://breakpad.appspot.com/426002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1002 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix for putting main module as first one in minidumpmkrebs@chromium.org2012-03-301-2/+50
| | | | | | | | | | | | | | The first module in a minidump is expected to be for the main executable. We used to assume that /proc/<pid>/maps always showed that one first, but in some cases that is no longer true (see comment #7 of the bug). So this change makes use of the entry point stored in auxv to make sure we put the correct module first. BUG=chromium-os:25355 TEST=Ran Breakpad tests Review URL: https://breakpad.appspot.com/366002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@942 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Implement core dump to minidump conversion.benchan@chromium.org2012-01-191-266/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is part of a bigger patch that helps merging the breakpad code with the modified version in Chromium OS. Specifically, this patch makes the following changes: 1. Turn the LinuxDumper class into a base class and move ptrace related code into a new derived class, LinuxPtraceDumper. 2. Add a LinuxCoreDumper class, which is derived from LinuxDumper, to extract information from a crashed process via a core dump file instead of ptrace. 3. Add a WriteMinidumpFromCore function to src/client/linux/minidump_writer/minidump_writer.h, which uses LinuxCoreDumper to extract information from a core dump file. 4. Add a core2md utility, which simply wraps WriteMinidumpFromCore, for converting a core dump to a minidump. BUG=455 TEST=Tested the following: 1. Build on 32-bit and 64-bit Linux with gcc 4.4.3 and gcc 4.6. 2. Build on Mac OS X 10.6.8 with gcc 4.2 and clang 3.0 (with latest gmock). 3. All unit tests pass. 4. Run Chromium OS tests to test core2md. Review URL: http://breakpad.appspot.com/343001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@905 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Refactor LinuxDumper and MinidumpWriter.benchan@chromium.org2012-01-111-14/+22
| | | | | | | | | | | | | | | | | | | | | | | This patch is part of a bigger patch that helps merging the breakpad code with the modified version in Chromium OS. Specifically, this patch makes the following changes: 1. Add two convenient methods, back() and empty(), to the wasteful_vector class. 2. Refactor the LinuxDumper class such that it can later be splitted into a base class and two derived classes, one uses the current ptrace implementation and one uses a core file. 3. Refactor the MinidumpWriter class such that it can later use different derived implementations of LinuxDumper. BUG=455 TEST=Tested the following: 1. Build on 32-bit and 64-bit Linux with gcc 4.4.3 and gcc 4.6. 2. Build on Mac OS X 10.6.8 with gcc 4.2 and clang 3.0 (with latest gmock). 3. All unit tests pass. Review URL: http://breakpad.appspot.com/340001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@902 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Replace readlink calls with a safer version that guarantees NULL-termination.benchan@chromium.org2011-12-211-3/+2
| | | | | | | | | | | | | | | | | | | | | This patch is part of a bigger patch that helps merging the breakpad code with the modified version in Chromium OS. Specifically, this patch makes the following changes: 1. Add a SafeReadLink function that wraps sys_readlink() to resolve a symbolic link but guarantees the result is NULL-terminated on success. 2. Refactor other source code to use SafeReadLink instead of readlink() or sys_readlink(). BUG=455 TEST=Tested the following: 1. Build on 32-bit and 64-bit Linux with gcc 4.4.3 and gcc 4.6. 2. Build on Mac OS X 10.6.8 with gcc 4.2 and clang 3.0 (with latest gmock). 3. All unit tests pass. 4. Run minidump-2-core to covnert a minidump file to a core file. Review URL: http://breakpad.appspot.com/334001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@896 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Refactor code in preparation of merging with the fork in Chromium OS.benchan@chromium.org2011-12-161-16/+5
| | | | | | | | | | | | | | | | | | | | | | This patch is part of a bigger patch that helps merging the breakpad code with the modified version in Chromium OS. Specifically, this patch makes the following changes: 1. Add a MemoryRange class for encapsulating and checking read access to a contiguous range of memory. 2. Add a MemoryMappedFile class for mapping a file into memory for read-only access. 3. Refactor other source code to use MemoryMappedFile. BUG=455 TEST=Tested the following: 1. Build on 32-bit and 64-bit Linux with gcc 4.4.3 and gcc 4.6. 2. Build on Mac OS X 10.6.8 with gcc 4.2 and clang 3.0 (with latest gmock). 3. All unit tests pass. 4. Run minidump-2-core to covnert a minidump file to a core file. Review URL: http://breakpad.appspot.com/332001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@895 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix linux-gate handling in LinuxDumper so it gets a valid debug IDted.mielczarek2011-05-061-0/+15
| | | | | | A=ted R=nealsid at http://breakpad.appspot.com/284001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@788 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Another attempt at signed / unsigned int resolution for linux minidump writer.jessicag.feedback@gmail.com2011-03-301-3/+4
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@785 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Merge adjacent mappings with the same name into one module in LinuxDumper.ted.mielczarek2011-03-141-11/+22
| | | | | | A=Mike Hommey <mh+mozilla@glandium.org> R=ted at https://bugzilla.mozilla.org/show_bug.cgi?id=637316 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@781 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Updating to ints from unsigned ints so -1 will be an acceptable value.jessicag.feedback@gmail.com2011-03-031-1/+1
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@777 4c0a9323-5329-0410-9bdc-e9ce6186880e
* allow passing info about known memory mappings to MinidumpWriter and ↵ted.mielczarek2010-12-131-11/+14
| | | | | | | | ExceptionHandler r=thestig at http://breakpad.appspot.com/242001/show git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@741 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Reuse code and fix inconsistent array boundaries.kmixter@chromium.org2010-12-081-4/+4
| | | | | | | R=ted.mielczarek Review URL: http://breakpad.appspot.com/237001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@740 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Linux: Attempt to generate an ELF identifier for deleted running binaries.thestig@chromium.org2010-11-191-14/+59
| | | | | | Review URL: http://breakpad.appspot.com/228001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@733 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add asm/ptrace.h include to linux_dumper.cc to fix the silly scratchbox ↵ted.mielczarek2010-10-211-8/+7
| | | | | | toolchain we're using for Maemo builds. Also shuffle around the include order to comply with style guidelines, while I'm here. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@718 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Add support for building the Linux client code using the Android NDKted.mielczarek2010-10-201-3/+10
| | | | | | r=mwu at http://breakpad.appspot.com/212001/show git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@716 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Import linux_syscall_support.h from linux-syscall-support.googlecode.com ↵thestig@chromium.org2010-09-151-1/+1
| | | | | | | | instead of using our own copy. Review URL: http://breakpad.appspot.com/192001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@686 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix a couple of bugs where we generate incorrect minidump files on Linux.othestig@chromium.org2010-08-141-4/+32
| | | | | | | | | Patch by Markus Gutschke <markus@chromium.org>. R=thestig Review URL: http://breakpad.appspot.com/150001 Review URL: http://breakpad.appspot.com/155001 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@649 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Changes to fix build warnings on newer versions of GCC, and a fix to not try ↵nealsid2010-05-101-0/+17
| | | | | | | | | | | to open certain mapped files. A=ZhurunZ, Tristan Schmelcher R=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@593 4c0a9323-5329-0410-9bdc-e9ce6186880e
* ARM support, with some build system changes to support x86-64, arm, and i386 ↵nealsid2010-03-021-28/+20
| | | | | | | | | | | in an autoconf style build in Linux. The O2 build for the unit tests is still broken but I'm checking this in to unblock people A=nealsid R=ajwong, hannahtang, ted.mielczarek git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@541 4c0a9323-5329-0410-9bdc-e9ce6186880e
* fix compilation on 64-bit, followup from issue 357ted.mielczarek2009-12-231-0/+3
| | | | git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@463 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Issue 357: New Linux file_id code doesn't persist across strip. ↵ted.mielczarek2009-12-231-0/+29
| | | | | | r=agl,nealsid at http://breakpad.appspot.com/49008 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@461 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix some build warningsnealsid2009-12-101-1/+1
| | | | | | | | | A=zhurunz R=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@439 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Upstreaming several patches from Chrome:nealsid2009-12-011-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Build fix for systems where sys/user.h needs sys/types.h.... http://breakpad.appspot.com/40002 MDRawSystemInfo.processor_level refers to the CPU family, not the cpuid level.. http://breakpad.appspot.com/40003 Use MD_MODULE_SIZE in place of sizeof(MDRawModule). http://breakpad.appspot.com/39003 Linux x64 compile fix. http://breakpad.appspot.com/40004 Include linux_syscall_support.h to get definition of NT_PRXFPREG. This is Chromium commit 23659. http://breakpad.appspot.com/40005 Build breakpad / crash reporting on Linux 64-bit. This is Chromium commit 23396. http://breakpad.appspot.com/40006 Fix #includes in a couple unit tests. http://breakpad.appspot.com/41001 Clean up unused headers / files for Linux dump_syms. http://breakpad.appspot.com/40002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@432 4c0a9323-5329-0410-9bdc-e9ce6186880e
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-14 12:40:26 +0000