| Commit message (Collapse) | Author | Age | Files | Lines |
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fuzz target.
Follow-up CL will be https://chromium-review.googlesource.com/c/chromium/src/+/1073395
Bug: 846721
Change-Id: Ie9e6dc5c5ef6b035c414fbdc4f711f995b52f4d7
Reviewed-on: https://chromium-review.googlesource.com/1073394
Reviewed-by: Will Harris <wfh@chromium.org>
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For common signals: SIGILL, SIGFPE, SIGSEGV, and SIGBUS.
Change-Id: I80048f70445c3fa6accd548704c5700b3bed12a4
Reviewed-on: https://chromium-review.googlesource.com/1012589
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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for being too long.
We've seen some minidumps that fail to process because they contain
a ridiculous number of modules (usually due to something leaking shm
mappings, it looks like). They're annoying to investigate because even
minidump_dump fails to load and print the module list. This patch makes
minidump_dump effectively remove the limit on the number of modules it
will load, so inspecting the dump by hand is possible.
R=vapier@chromium.org
Change-Id: I7a55387ca4aaad8664cd4d2651052da989366027
Reviewed-on: https://chromium-review.googlesource.com/957130
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Fixes a bug where MD_EXCEPTION_CODE_MAC_PPC_ALTIVEC_ASSIST
would unintentionally get two reason strings appended.
Bug: 177475
Change-Id: I4957268328a242c7c75bbff8add98e9a48ba83ad
Reviewed-on: https://chromium-review.googlesource.com/895705
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
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Fixes a compilation error when ::string != std::string.
Bug:
Change-Id: Ifa782da65dd08973de1fc4215f658c798ae5160b
Reviewed-on: https://chromium-review.googlesource.com/802324
Reviewed-by: Mark Mentovai <mark@chromium.org>
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Adds an optional 'm' as the first field in FUNCTION and PUBLIC records
to indicate that the address corresponds to more than one symbol.
Controls this by a command line flag for now to give symbol file users
a chance to update.
Also reduces the number of IDiaSymbols retained in memory to one per
address. This reduces memory consumption by 8% when processing
chrome.dll.pdb.
Updates the processor to parse the new optional field.
Bug: google-breakpad:751
Change-Id: I6503edaf057312d21a1d63d9c84e5a4fa019dc46
Reviewed-on: https://chromium-review.googlesource.com/773418
Reviewed-by: Mark Mentovai <mark@chromium.org>
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This hides the need to provide mutable C strings, and unifies
existing basename calls and variations in a single location.
Change-Id: Idfb449c47b1421f1a751efc3d7404f15f8b369ca
Reviewed-on: https://chromium-review.googlesource.com/725731
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Note that the current MicrodumpProcessor::Process implementation has a
bug due to the fact that it creates a local Microdump instance, and then
holds onto a pointer to the object returned by microdump.GetMemory()
which is destroyed when microdump goes out of scope. This CL fixes the
crash by making Microdump outlive MicrodumpProcessor, which is the same
pattern that Minidump/MinidumpProcessor uses.
Bug: google-breakpad:748
Change-Id: I554b46d309649cf404523722bd9ee39e17a10139
Reviewed-on: https://chromium-review.googlesource.com/720809
Reviewed-by: Primiano Tucci <primiano@chromium.org>
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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Bug: google-breakpad:748
Change-Id: I70b16ba6456df0be038d6c7170eb22b093fdc65d
Reviewed-on: https://chromium-review.googlesource.com/718756
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Change-Id: I9957f27cd134f862b9831e4b1d90f8a014eb37b6
Reviewed-on: https://chromium-review.googlesource.com/701740
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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This is currently mostly useful to expose the annotations that Crashpad
stores in minidumps.
Example output:
MDRawCrashpadInfo
version = 1
report_id = 01234567-89ab-cdef-0123-456789abcdef
client_id = fedcba98-7654-3210-fedc-ba9876543210
simple_annotations["channel"] = canary
simple_annotations["plat"] = OS X
simple_annotations["prod"] = Chrome_Mac
simple_annotations["ver"] = 59.0.3069.0
module_list[0].minidump_module_list_index = 0
module_list[0].version = 1
module_list[0].simple_annotations["ptype"] = crashpad-handler
module_list[1].minidump_module_list_index = 28
module_list[1].version = 1
module_list[1].list_annotations[0] = abort() called
Change-Id: I00ba291f93ea3a37fc3754c651b3ccc542e5b8b2
Reviewed-on: https://chromium-review.googlesource.com/688416
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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Mostly int<->size_t implicit conversions.
Warning 4366 (The result of the unary '&' operator may be unaligned)
appears in minidump.cc:907, but I don't know why. It looks aligned to me.
Change-Id: I641942adc324f8f9832b20662083dc83498688a8
Reviewed-on: https://chromium-review.googlesource.com/637390
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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1. testing.gyp is a gyp file, not a gypi file. It is only referenced in
“dependencies” sections. The gypi extension is used for files that are
included by an “includes” section.
2. Update paths in testing.gyp to reflect the real locations of
googletest and googlemock following their merge into a single
repository.
Change-Id: If9c356d93aa5ffda54af46fbed648baa2274dac6
Reviewed-on: https://chromium-review.googlesource.com/673404
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Bug: google-breakpad:743
Change-Id: I2e40b5cc36c012c18a1c4637634fb139b0d8e14d
Reviewed-on: https://chromium-review.googlesource.com/647886
Reviewed-by: Mark Mentovai <mark@chromium.org>
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BUG=757166
Change-Id: I967a6903332b9c3d16b583f7fa4d3c9c44c2f729
Reviewed-on: https://chromium-review.googlesource.com/643267
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
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BUG=754715
Change-Id: I00fe62ed06dbbab4c8f6c416d56e2d444be11571
Reviewed-on: https://chromium-review.googlesource.com/621307
Reviewed-by: Robert Sesek <rsesek@chromium.org>
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BUG=756317
Change-Id: Id096372e5a0d1e7c70e95304b1f0c181f57d3882
Reviewed-on: https://chromium-review.googlesource.com/619126
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
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Change I361d8812df7b2977fe2630289059d31c3c9a4cc3 increased the maximum
number of threads for minidump_stackwalk. This change also increases the
maximum number of regions.
Change-Id: I61efd4453df8809bd9cd657546d1d6727cd10281
Reviewed-on: https://chromium-review.googlesource.com/588384
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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The main motivation for this change is to handle very large stack
traces, normally the result of infinite recursion. This part is
actually fairly simple, relaxing a few self-imposed limits on how
many frames we can unwind and the max size for stack memory.
Relaxing these limits requires stricter and more consistent checks for
stack unwinding. There are a number of unwinding invariants that apply
to all the platforms:
1. stack pointer (and frame pointer) must be within the stack memory
(frame pointer, if preset, must point to the right frame too)
2. unwinding must monotonically increase SP
(except for the first frame unwind, this must be a strict increase)
3. Instruction pointer (return address) must point to a valid location
4. stack pointer (and frame pointer) must be appropriately aligned
This change is focused on 2), which is enough to guarantee that the
unwinding doesn't get stuck in an infinite loop.
1) is implicitly validated part of accessing the stack memory
(explicit checks might be nice though).
4) is ABI specific and while it may be valuable in catching suspicious
frames is not in the scope of this change.
3) is also an interesting check but thanks to just-in-time compilation
it's more complex than just calling
StackWalker::InstructionAddressSeemsValid()
and we don't want to drop parts of the callstack due to an overly
conservative check.
Bug: chromium:735989
Change-Id: I9aaba77c7fd028942d77c87d51b5e6f94e136ddd
Reviewed-on: https://chromium-review.googlesource.com/563771
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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1. Fixing ExceptionHandlerTest.FirstChanceHandlerRuns:
exit() is not an async-signal-safe function (http://man7.org/linux/man-pages/man7/signal-safety.7.html)
2. Fixing entry point signature in minidump_dump
Changed "const char* argv[]" to "char* argv[]" to match the standard entry point signature
3. Updating .gitignore to exclude unit test artifacts
Change-Id: I9662898d0bd97769621fb6476a720105821c60f0
Reviewed-on: https://chromium-review.googlesource.com/562356
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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BUG=
Change-Id: I361d8812df7b2977fe2630289059d31c3c9a4cc3
Reviewed-on: https://chromium-review.googlesource.com/459010
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Fix some build & test failures in the previous minidump_dump code.
BUG=chromium:598947
Change-Id: Ia8fce453265167368de96747a8a92af930e78245
Reviewed-on: https://chromium-review.googlesource.com/458881
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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The current stack output is one line byte string which is not easy for
humans to parse. Extend the print mode to support a hexdump-like view
and switch to that by default. Now we get something like:
Stack
00000000 20 67 7b 53 94 7f 00 00 01 00 00 00 00 00 00 00 | g{S...........|
00000010 00 70 c4 44 9a 25 00 00 08 65 7a 53 94 7f 00 00 |.p.D.%...ezS...|
BUG=chromium:598947
Change-Id: I868e1cf4faa435a14c5f1c35f94a5db4a49b6a6d
Reviewed-on: https://chromium-review.googlesource.com/404008
Reviewed-by: Mark Mentovai <mark@chromium.org>
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In preparation for adding more flexibility to this tool, add a
proper parser for the command line flags. This uses the style
as seen in other breakpad tools.
BUG=chromium:598947
Change-Id: I95495e6ca7093be34d0d426f98a6c22880ff24a3
Reviewed-on: https://chromium-review.googlesource.com/457019
Reviewed-by: Mark Mentovai <mark@chromium.org>
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BUG=
Change-Id: Ib9b0fd5ba7f829f8be8cf856ab371c6540279ee5
Reviewed-on: https://chromium-review.googlesource.com/458526
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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The current ARM minidump_dump output makes people remember or look up
how registers are mapped in the ISA. Let's use human friendly names
instead so they don't have to.
Currently it looks like:
MDRawContextARM
context_flags = 0x40000006
iregs[ 0] = 0x3c48b000
iregs[ 1] = 0x3
iregs[ 2] = 0x20
iregs[ 3] = 0x0
iregs[ 4] = 0x1c
iregs[ 5] = 0x3c48b000
iregs[ 6] = 0x20
iregs[ 7] = 0x3c48b04c
iregs[ 8] = 0x39100611
iregs[ 9] = 0x1c
iregs[10] = 0x0
iregs[11] = 0xbe61c200
iregs[12] = 0xfb9c1fec
iregs[13] = 0xbe61bd28
iregs[14] = 0x39e19b1c
iregs[15] = 0x357dd74c
cpsr = 0x680b0010
float_save.fpscr = 0x0
Now it looks like:
MDRawContextARM
context_flags = 0x40000006
r0 = 0x3c48b000
r1 = 0x3
r2 = 0x20
r3 = 0x0
r4 = 0x1c
r5 = 0x3c48b000
r6 = 0x20
r7 = 0x3c48b04c
r8 = 0x39100611
r9 = 0x1c
r10 = 0x0
r11 = 0xbe61c200
r12 = 0xfb9c1fec
sp = 0xbe61bd28
lr = 0x39e19b1c
pc = 0x357dd74c
cpsr = 0x680b0010
float_save.fpscr = 0x0
BUG=chromium:665083
Change-Id: I46d87c4ff7303a7efcd60da1d0b67ae7a5465c8f
Reviewed-on: https://chromium-review.googlesource.com/457197
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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Currently on MIPS we accidentally terminate stackwalk if $sp value doesn't change between frames
which results in incomplete callchain terminated at the point of first tailcall encountered.
Change-Id: I8f1ed1df958d8f0a9eb11fd7800062184d8f1ee2
Reviewed-on: https://chromium-review.googlesource.com/449755
Reviewed-by: Mark Mentovai <mark@chromium.org>
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BUG=chromium:661037
Change-Id: Ia4da0bd9787c232a6a199cfdfccfbed60c2515c2
Reviewed-on: https://chromium-review.googlesource.com/450090
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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These compile errors occur when building the check target with:
CXX=clang++-3.8
CXXFLAGS="-Werror -Wconstant-conversion -g -O2 -std=c++11"
src/processor/stackwalker_mips.cc:60:9: error: comparison of constant
18446744073709551615 with expression of type 'bool' is always false
[Werror,-Wtautological-constant-out-of-range-compare]
> 0xffffffffffffffff) {
^ ~~~~~~~~~~~~~~~~~~
src/processor/stackwalker_mips.cc:68:66: error: comparison of constant
4294967295 with expression of type 'bool' is always false
[-Werror,-Wtautological-constant-out-of-range-compare]
if ((memory_ && memory_->GetBase() + memory_->GetSize() - 1) > 0xffffffff) {
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~
Change-Id: I29eed8f4a67b9feeb274aa1fc6c79a019135e8d6
Reviewed-on: https://chromium-review.googlesource.com/438445
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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Change-Id: Idf3fe363c76734caa3e6a6cc20a53fd1d661188d
Reviewed-on: https://chromium-review.googlesource.com/438564
Reviewed-by: Mark Mentovai <mark@chromium.org>
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BUG=
Change-Id: I6d03820082f793a2eac3c3c2abd184b4acf66aa4
Reviewed-on: https://chromium-review.googlesource.com/438755
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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This reverts commit 5c521532fc0a1b65f42c0d61d2da206eadf318b8.
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BUG=
Change-Id: I6c1d78cfe344c7b90a03f6df35193d67623bfd89
Reviewed-on: https://chromium-review.googlesource.com/434094
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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This CL hits lots of source files because:
1. An update to the CodeModule virtual class. I added an is_loaded
method to specify whether the module is loaded. There were several
mocks/test classes that needed to be updated with an implementation.
An alternative to this route would be to modify
MinidumpUnloadedModule::code_file to prepend "Unloaded_" to the
module name.
2. Added an unloaded_modules parameter to
StackFrameSymbolizer::FillSourceLineInfo.
BUG=
Change-Id: Ic9c7f7c7b7e932a154a5d4ccf292c1527d8da09f
Reviewed-on: https://chromium-review.googlesource.com/430241
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
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The implementations of Module/UnloadedModule and
ModuleList/UnloadedModuleList are very similar. They have been made
separate classes because they operate on different structs, complicating
factoring code into a base class and have sufficiently different
implementation that templates would not be suitable.
When unloaded modules have partially overlapping ranges, the module
shrink down feature is used to move the start of the higher range to the
end of the lower range. If two unloaded modules overlap identically, the
second module will not be added to the range map and the failure
ignored.
Places where MinidumpUnloadedModule differs from MinidumpModule:
code_identifier: the android/linux case is deleted since cv_records
never exist.
debug_file/debug_identifier/version: always return empty strings.
Read: an expected size is provided as opposed to MD_MODULE_SIZE. A
seek is used if there are extra, unused bytes.
Places where MinidumpUnloadedModuleList differs from
MinidumpModuleList:
Read: entry and header size is provided in the header in
addition to count. This changes the checks and handling of padding.
Failures from StoreRange are ignored.
GetMainModule: always returns NULL.
BUG=
Change-Id: I52e93d3ccc38483f50a6418fede8b506ec879aaa
Reviewed-on: https://chromium-review.googlesource.com/421566
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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GCC6 optimizes it out, leading to crash.
Change-Id: I8425d456c1364929d135ce3860121b8098bab1f7
Reviewed-on: https://chromium-review.googlesource.com/413120
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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These are /bin/sh scripts, and `source` is a bash-specific command.
Switch to the portable `.` command instead.
Change-Id: I51d8253b26aa61c130bb5fdc4789f8d623c6d9db
Reviewed-on: https://chromium-review.googlesource.com/414524
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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code.google.com is obsolete.
Fix all broken markdown links while at it.
Change-Id: I6a337bf4b84eacd5f5c749a4ee61331553279009
Reviewed-on: https://chromium-review.googlesource.com/411800
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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BUG=
Change-Id: I19a1abf1d00f208943db1c362cc426ca8bd2068e
Reviewed-on: https://chromium-review.googlesource.com/409632
Reviewed-by: Mark Mentovai <mark@chromium.org>
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instead of std::string.
For more details take a look at common/using_std_string.h
BUG=
Change-Id: Ifebfc57f691ef3a3bef8cfed7106c567985edffc
Reviewed-on: https://chromium-review.googlesource.com/399738
Reviewed-by: Mark Mentovai <mark@chromium.org>
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This exception is being seen in Chrome during stack unwinding.
BUG=
Change-Id: Ica3f721ca605dff835ffc3814c60bab9f6f9b192
Reviewed-on: https://chromium-review.googlesource.com/404332
Reviewed-by: Mark Mentovai <mark@chromium.org>
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On 32-bit hosts the new code for dumping version 5 of the MDRawMiscInfo
structure uses a 32-bit left shift to select flags corresponding to the
entries in the MDXStateFeature array. Since the array is made of 64
element this automatically skipped half of it.
Change-Id: Ic4e3beaf6c56083524b33da9a396c14eec0d2bd2
Reviewed-on: https://chromium-review.googlesource.com/396107
Reviewed-by: Ted Mielczarek <ted@mielczarek.org>
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EBX is sometimes used in "WIN FRAME 4" programs. Not providing the
initial value was causing the evaluation in some frames of ntdll,
resulting in a fallback to scanning and a failed stack walk.
R=mark@chromium.org
BUG=chromium:651453
Change-Id: I94a8184e1eed72b0d0e3212fe323fbdd10d56da5
Reviewed-on: https://chromium-review.googlesource.com/398059
Reviewed-by: Mark Mentovai <mark@chromium.org>
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::string class instead of std::string.
For more details take a look at common/using_std_string.h
BUG=
Change-Id: I11f1ce697be23e13f12ea8f0468bbe02fa63c967
Reviewed-on: https://chromium-review.googlesource.com/378159
Reviewed-by: Mark Mentovai <mark@chromium.org>
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instead of a specific name.
This will prevent false positives on systems which use a format such as
“[stack:69616]” for stack memory mapping names.
Change-Id: I51aeda2fe856c1f37f0d18ac06cce69fec2fffa2
Reviewed-on: https://chromium-review.googlesource.com/377086
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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The routines used to read from the structure were also modified to accomodate for unknown future versions by skipping over the unsupported part instead of failing.
R=ted.mielczarek@gmail.com
Review URL: https://codereview.chromium.org/2109063004/ .
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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 .
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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 .
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