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>
Patch provided by Thomas Schweitzer.
BUG=
Change-Id: Ib35cdf766e73e4936e66f75474d83c2602f8ceb4
Reviewed-on: https://chromium-review.googlesource.com/378059
Reviewed-by: Mark Mentovai <mark@chromium.org>
Previously, if the input file was missing, the symupload tool on Mac
would happily process, try to parse it (calling a method on nil) and
fail when trying to create the payload to send to the server as one
of the method raised a NSInvalidArgumentException when receiving a
nil value.
Change to code to instead check the file for existence which makes it
easier to understand what is happening when part of the build system
is misconfigured and invoke symupload without first creating the symbol
file.
BUG=449348
Change-Id: Icc0f08958114da4be0cbbd7a7c2aeef905bc0db1
Reviewed-on: https://chromium-review.googlesource.com/367260
Reviewed-by: Mark Mentovai <mark@chromium.org>
It is often helpful to check if a particular symbol file dumped by
dump_syms actually matches a version of a binary file we have. The
symbol output contains an ID which can be used to see if it matches
the binary file. Unfortunately, this ID is internally calculated
and not a standard hash of the binary file. Being able to output the
header information only will allow users to determine whether their
symbol file is up to date or not.
R=jochen@chromium.org
BUG=561447
Review URL: https://codereview.chromium.org/1864823002 .
Patch from David Yen <dyen@chromium.org>.
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 .
The thread info expects the struct names as they expect in asm/ptrace.h,
but the header doesn't include that, it includes sys/user.h. Rename the
reg structs to match that header.
Rename the elf_siginfo to _elf_siginfo to avoid conflicting with the one
in the sys/procfs.h. It is only used locally in one place, so we don't
need to update any callers.
Otherwise, drop in aarch64 support into the minidump-2-core file.
BUG=chromium:334368
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1474 4c0a9323-5329-0410-9bdc-e9ce6186880e
Adding an optional parameter --product to symupload.exe. If specified it will be passed to the symbol server as POST parameter 'product'.
As part of this, I'm also fixing:
- Removed the .vcproj file as it can be generated from the .gyp file on demand.
- error C4335: Mac file format detected. Fixed the line endings for omap.cc and dia_util.cc.
- warning C4003: not enough actual parameters for macro 'max'
Symupload.exe was compiled using MSVS 2013 and DIA SDK 12.0.
Review URL: https://breakpad.appspot.com/9734002/
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1402 4c0a9323-5329-0410-9bdc-e9ce6186880e
This adds a new |-g <dSYM path>| flag to dump_syms, to specify the dSYM path for
the target Mach-O argument. The UUIDs and architectures of the two paths must
match in order to dump symbols for this "split module."
This reason for this is that for x86_64 binaries on OS X, the CFI data is stored
in the __TEXT,__eh_frame segment of the Mach-O file, and the data is not copied
into the dSYM by dsymutil. Therefore, just dumping the dSYM doesn't yield CFI
data for x86_64 files, and both the dSYM and the Mach-O file must be dumped in
order to produce a complete Breakpad symbol file. For i386 binaries, the CFI data
is stored in the __DWARF,__debug_frame segment, which is part of the dSYM, so
this isn't necessary.
BUG=https://code.google.com/p/chromium/issues/detail?id=393594R=mark@chromium.org
Review URL: https://breakpad.appspot.com/6704002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1359 4c0a9323-5329-0410-9bdc-e9ce6186880e
This GYP-ifies the src/processor and src/common directories on those platforms
as well. The Makefile build uses much more granular unittest executables, so
the new processor_unittests does not yet link because of multiple main() symbols,
but this will be fixed later.
Update issue 575
R=mark@chromium.org
Review URL: https://breakpad.appspot.com/10674002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1358 4c0a9323-5329-0410-9bdc-e9ce6186880e
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
This CL introduces "--sobasedir" command-line option to minidump-2-core.
By default, paths to shared lib files included in generated core file are
formatted as "/var/lib/breakpad/[GUID]libFoobar.so". By using "--sobasedir",
this will be "[user-supplied-path]libFoobar.so".
This option can be used to ease debugging minidump files from developer's local
builds. By specifying "minidump-2-core --sobasedir `pwd`/out/Debug/lib/
foobar.mdmp", user can load the generated core file in gdb without setting up
the symlinks for "/var/lib/breakpad".
BUG=None
A=kouhei@chromium.org
Original code review: https://breakpad.appspot.com/1214002/R=kouhei@chromium.org
Review URL: https://breakpad.appspot.com/1584002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1317 4c0a9323-5329-0410-9bdc-e9ce6186880e
This has a substantial performance improvement over using the getSymbolsByAddr iterator, especially on certain 64bit DLLS. e.g. Time to process chrome_child.dll drops from 51 minutes to 21 secs.
Note: new test data looks different because the ordering of lines is no longer by memory address. This does not affect processing. The test data has been manually compared to old data and matches (except additional PUBLIC symbols). Also, INFO lines are omitted because the source executable files are not checked in, so they are unavailable.
R=ivanpe@chromium.org, mark@chromium.org
Review URL: https://breakpad.appspot.com/1574002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1316 4c0a9323-5329-0410-9bdc-e9ce6186880e
As part of that:
- Updated MSSymbolServerConverter to also download the executable files from the symbol server and pass them to the PDBSourceLineWriter as it is required for successful conversion of symbols for 64-bit modules.
- Added a .gyp file and target for the ms_symbol_server_converter library.
- Updated PDBSourceLineWriter to allow executable files to be in locations different from the locations of the PDB files.
- Minor style issue:
* #define guards.
* No space before ')' and after '('.
R=mark@chromium.org, wfh@chromium.org
Review URL: https://breakpad.appspot.com/1434002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1309 4c0a9323-5329-0410-9bdc-e9ce6186880e
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 CL adds new utilities to common/windows for handling OMAP information in
PDB files. It then augments PdbSourceLineWriter with explicit OMAP knowledge so
that symbolization will proceed more cleanly for images whose PDB files contain
OMAP information. This makes breakpad handle OMAPped symbol files as cleanly as
WinDbg.
Review URL: https://breakpad.appspot.com/570002/
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1167 4c0a9323-5329-0410-9bdc-e9ce6186880e
NXGetArchInfoXXX depends on the OS knowledge of architecture. This CL adds a
custom implementation of those methods to be able to handle newer CPU before
they are handled by the OS. It also add handling for armv7s architecture.
Review URL: https://breakpad.appspot.com/475002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1057 4c0a9323-5329-0410-9bdc-e9ce6186880e
This small patch allows the build of the tools and processor
when targetting Android with the Automake/Autconf build.
Not that these necessarily work correctly at the moment,
but there is no need for --disable-tools --disable-processor
now when using --host=arm-linux-androideabi or
--host=i686-linux-android.
+ Modify android/run-checks.sh to build all binaries with
the Automake build.
+ Tiny fix for --abi=x86 in android/run-checks.sh
Review URL: https://breakpad.appspot.com/438002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1018 4c0a9323-5329-0410-9bdc-e9ce6186880e
Ted Mielczarek:
> You could try backing out r989, although Mozilla has been running with that
> patch for months without issue.
Me:
> src/client/windows/handler/exception_handler.cc in r989 appears to have
> formatting problems, an unwanted property change, and no real Breakpad review
> history, so maybe we should back it out anyway until the proper process is
> followed.
NACL Tests nacl_integration failures:
http://build.chromium.org/p/chromium/builders/NACL%20Tests/builds/30138
chrome src/native_client/tests/inbrowser_crash_test/crash_dump_tester.py says
that the observed failures are a symptom of crash_service.exe itself crashing.
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@998 4c0a9323-5329-0410-9bdc-e9ce6186880e
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
This patch is part of a bigger patch that helps merging the breakpad code
with the modified version in Chromium OS.
The MemoryRange class was added in r895 (http://breakpad.appspot.com/332001),
which is largely based on MMappedRange but generalized to be used in other
code. However, MemoryRange does not support minidump data structures. This
patch adds a MinidumpMemoryRange class that extends MemoryRange to handle
minidump data structures, which can then replace MMappedRange.
As with MemoryRange, MinidumpMemoryRange is unit tested.
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/335001
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@898 4c0a9323-5329-0410-9bdc-e9ce6186880e
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
symupload printed -[NSData length], an NSUInteger, using %lu. %lu is proper
to print a "long" as unsigned, but NSUInteger is a typedef for "unsigned int"
when building for 32-bit. This would not have caused any problems, because in
the 32-bit model, both int and long are 32 bits wide. In the 64-bit model,
long is 64 bits wide, but NSUInteger is defiend as "unsigned long", so there
wouldn't have even been a warning in that case.
This addresses the following warning:
symupload.m:137:30:{137:28-137:31}{137:46-137:59}: warning: conversion specifies type 'unsigned long' but the argument has type 'NSUInteger' (aka 'unsigned int') [-Wformat]
Review URL: http://breakpad.appspot.com/313002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@860 4c0a9323-5329-0410-9bdc-e9ce6186880e
This libcrypto dependency sucks. Linking against OpenSSL is sort of broken in
certain Mac OS X SDKs. libcrypto was only being used to provide an MD5
implementation. Breakpad already has its own MD5 implementation, so just use
that instead.
To be perfectly honest, on modern systems, nothing should be making MD5
hashes of modules anyway, because everything has an embedded LC_UUID.
The project file changes just remove libcrypto and add md5.c as needed.
A bonus (and untested) fix for on_demand_symbol_supplier.mm is included to
account for changes in r794.
Review URL: http://breakpad.appspot.com/296001
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@819 4c0a9323-5329-0410-9bdc-e9ce6186880e
This patch adds synth_elf::{StringTable,SymbolTable,ELF} classes to
produce in-memory ELF files to properly test the Linux symbol dumping
code. It also uses those classes to add some basic tests for
the WriteSymbolFile function.
R=jimb at http://breakpad.appspot.com/277001/show
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@794 4c0a9323-5329-0410-9bdc-e9ce6186880e
what architecture name is shown in a symbol file's MODULE line, but the Mac
crash_report tool's on_demand_symbol_supplier does. The new Mac dumper
inadvertently used i386. Correct that to make it x86. Temporarily make the
on_demand_symbol_supplier accept symbol files whose architecture is i386.
Also add x86_64 to the set of architectures that the on_demand_symbol_supplier
considers valid.
BUG=none
TEST=none
Review URL: http://breakpad.appspot.com/143001
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@638 4c0a9323-5329-0410-9bdc-e9ce6186880e
This patch avoids unnecessary use of the <cfoo> headers in files that don't
actually use the identifiers they declare in the std:: namespace.
It also changes some files to better conform with the "Names and Order of
Includes" rules in the Google C++ Style Guide.
A=jimb R=mark
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@619 4c0a9323-5329-0410-9bdc-e9ce6186880e
The dwarf_cu_to_module_unittest and bytereader_unittest test executables
include object files from which they use no code.
A=jimb R=thestig
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@617 4c0a9323-5329-0410-9bdc-e9ce6186880e
This patch adds all the appropriate symbol dumper unit tests to the Mac
XCode dump_syms project. This allows us to test this code on a 64-bit
platform.
A=jimb R=mark
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@616 4c0a9323-5329-0410-9bdc-e9ce6186880e
This patch rewrites the Mac symbol dumper to use the same set of classes
the Linux dumper does for reading debugging information from various
sources, consolidating them into a single table, and writing that out as a
Breakpad symbol file.
In the process, it also adds support for dumping DWARF call frame
information and .eh_frame exception-handling information as Breakpad 'STACK
CFI' records. This allows the Breakpad processor to generate stack traces
from code compiled with -fomit-frame-pointer.
The patch also replaces the DumpSymbols Objective C++ class with
google_breakpad::DumpSymbols, a plain C++ class. The code still uses some
Objective C++ to use the Foundation facilities for dealing with file names
in a file-system-independent fashion, and for examining the contents of
.dSYM bundles.
Since the code has been entirely rewritten, I have changed the author
lines.
A=jimb R=mark
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@614 4c0a9323-5329-0410-9bdc-e9ce6186880e
Instead of using bzero in main, use constructors to initialize the
Options structure.
Use C++ bool, not Objective-C BOOL.
Use a const NXArchInfo * to represent the architecture name, so that we can
use the NXGetLocalArchInfo, NXGetArchInfoFromName, etc. to handle things.
Delete the 'uuidStr' member; it is unused.
Leave Options::srcPath as an NSString, so that we can continue to use the
filesystem path abstraction methods provided by the Foundation framework.
A=jimb R=mark
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@611 4c0a9323-5329-0410-9bdc-e9ce6186880e
This patch adds files defining new classes in the google_breakpad::Mach_O
namespace for parsing fat binaries and Mach-O files. These are used in the
new dumper to handle STABS debugging information, DWARF call frame
information, and .eh_frame exception handling stack walking information.
These new classes are independent of endianness and word size, and
therefore can be used on binaries of all the relevant architectures: x86,
x86_64, ppc, and ARM.
The patch adds a complete set of unit tests for the new classes.
A=jimb R=mark (http://breakpad.appspot.com/93001/show, http://breakpad.appspot.com/115001/show)
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@610 4c0a9323-5329-0410-9bdc-e9ce6186880e
The XCode project file has become encrufted with duplicate Executable
entres and some strange settings. This patch deletes and recreates various
entries to make things neat again. It should have no effect on the
project's visible behavior.
a=jimblandy, r=thestig
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@591 4c0a9323-5329-0410-9bdc-e9ce6186880e
Breakpad's Macintosh symbol dumper uses deprecated functions for
dealing with mixed-endianness code. This patch provides an overloaded
function, ByteSwap, that automatically chooses the OSSwap* functions
from <libkern/OSByteOrder.h> appropriate for its argument's
size.
This patch does *not* address warnings in src/common/mac/dump_syms.mm,
because that code is about to be replaced entirely; there's no reason to
bother reviewing a big, detailed patch against it.
a=jimblandy, r=mark
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@589 4c0a9323-5329-0410-9bdc-e9ce6186880e
All the other classes which receive debugging data from some sort of parser
and use it to populate a Module have names ending in "ToModule":
DwarfCUToModule, DwarfCFIToModule. Also, DumpStabsHandler doesn't actually
dump anything.
This patch renames the DumpStabsHandler class to StabsToModule, which is
more consistent and descriptive.
a=jimblandy, r=thestig
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@584 4c0a9323-5329-0410-9bdc-e9ce6186880e
StabsReader simply applies a reinterpret_cast to treat the stab entry data
as an array of 'struct nlist' structures, making the parser specific on the
host endianness, word size, and alignment rules. On Mac OS X, a single fat
binary file may contain object files of different ABIs, of which the user
chooses one at run time.
This patch changes the parser to read the data using the google_breakpad::
ByteCursor class, which can handle different endiannesses and word sizes.
The StabsReader constructor now takes arguments indicating the endianness
of the data and the size of each entry's value field. The patch changes
src/common/linux/dump_symbols.cc to pass the new argument.
This patch changes the StabsReader unit tests to use the google_breakpad::
TestAssembler classes to generate test data, rather than reading it from a
file. This makes it easy to generate test data in various endiannesses and
word sizes. It also adds tests for the new parser behaviors.
a=jimblandy, r=thestig
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@583 4c0a9323-5329-0410-9bdc-e9ce6186880e
The ByteBuffer and ByteCursor classes are utility classes for reading
binary files, handling endianness and word size issues in a portable way.
a=jimblandy, r=thestig
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@582 4c0a9323-5329-0410-9bdc-e9ce6186880e
The google_breakpad::TestAssembler classes are used in both the processor's
and the Linux dumper's test suites, and will soon be used in the Mac
dumper's tests as well. This patch moves their source files from
src/processor to src/common.
a=jimblandy, r=thestig
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@574 4c0a9323-5329-0410-9bdc-e9ce6186880e
The Linux symbol dumper's classes are reasonably portable, and should be
usable for the Mac dumper as well. Move them to src/common, along with
their unit tests. Update #include directives and Makefile.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@567 4c0a9323-5329-0410-9bdc-e9ce6186880e
The Linux dumper's Makefile doesn't record the object files' dependence on
header files at all, just because I was too lazy to write them out and knew
I would forget to keep them up to date anyway. But I've wasted too much
time tracking down mysterious segmentation faults and other problems after
changing header files, and I know it's wasted others' time, too.
a=jimblandy, r=nealsid,dmuir
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@563 4c0a9323-5329-0410-9bdc-e9ce6186880e
The Linux C++ exception handling data format (.eh_frame) can specify a
number of different encodings for the addresses it contains. This
patch extends dwarf2reader::ByteReader to read pointers encoded in
these ways.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@551 4c0a9323-5329-0410-9bdc-e9ce6186880e
Define a new DWARF parser class, dwarf2reader::CallFrameInfo.
Extend google_breakpad::Module to store and write out 'STACK CFI' records.
Define a new google_breakpad::DwarfCFIToModule class, to accept DWARF
CFI data from the parser and populate a Module with the equivalent
STACK CFI records.
Extend the Linux symbol dumping tool, dump_syms, to use
dwarf2reader::CallFrameInfo, google_breakpad::DwarfCFIToModule, and
google_breakpad::Module to extract DWARF CFI from the executable or
shared library files and write it to the Breakpad symbol file.
Define CFISection, a new class derived from TestAssembler::Section,
for use in creating DWARF CFI data for test cases.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@550 4c0a9323-5329-0410-9bdc-e9ce6186880e
Without this patch, debugging information like the following will produce
FUNC records with no names, because the dumper (correctly) ignores the
DW_TAG_subprogram DIEs that lack DW_AT_low_pc/DW_AT_high_pc attributes, but
won't follow the DW_AT_abstract_origin link from the DIE that does have
code addresses to find its name.
<1><168>: Abbrev Number: 5 (DW_TAG_class_type)
<169> DW_AT_name : Foo
<2><183>: Abbrev Number: 7 (DW_TAG_subprogram)
<185> DW_AT_name : Foo
<18b> DW_AT_declaration : 1
<1><1b7>: Abbrev Number: 12 (DW_TAG_subprogram)
<1b8> DW_AT_specification: <0x183>
<1bc> DW_AT_inline : 2 (declared as inline but ignored)
<1><1dc>: Abbrev Number: 16 (DW_TAG_subprogram)
<1dd> DW_AT_abstract_origin: <0x1b7>
<1e1> DW_AT_low_pc : 0x8048578
<1e5> DW_AT_high_pc : 0x8048588
a=dmuir, r=jimblandy
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@520 4c0a9323-5329-0410-9bdc-e9ce6186880e
Yes, classes are useful. But that doesn't mean that every function has
to gratuitously become a member function. The Google C++ Style Guide
does not require this silliness, since the function is in the
google_breakpad namespace anyway.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@519 4c0a9323-5329-0410-9bdc-e9ce6186880e
We've gotten mixed advice from the lawyery types about whether this
matters. But it's easy enough to do.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@517 4c0a9323-5329-0410-9bdc-e9ce6186880e
Having NDEBUG be the default has wasted my time more often than I'm
proud to admit. There are no expensive asserts in the Linux symbol
dumper.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@502 4c0a9323-5329-0410-9bdc-e9ce6186880e
This adds DWARF support to the Breakpad Linux dumper. This is
implemented as two handler classes: google_breakpad::DwarfCUToModule
accepts data from dwarf2reader::CompilationUnit, and
google_breakpad::DwarfLineToModule accepts data from a
dwarf2reader::LineInfo, each populating a google_breakpad::Module with
the results. Behaviors specific to particular source languages are
handled by instances of a new class, google_breakpad::Language.
An input executable may contain both STABS and DWARF debugging
information: the dumper automatically recognizes what sorts of
information are available, and integrates the data into a single
output file.
All classes have unit tests, providing line and branch coverage of all
interesting code. Unit tests are written using the Google C++ Testing
Framework, and the Google C++ Mocking Framework where appropriate.
a=jimblandy, r=ccoutant
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@497 4c0a9323-5329-0410-9bdc-e9ce6186880e
dwarf2reader::CompilationUnit is a simple and direct parser for DWARF
data, but its handler interface is not convenient to use. In
particular, the same handler object receives data about all DIEs
processed. One can't use distinct classes to separate the information
needed to handle different kinds of data.
This patch defines a new adapter type, dwarf2reader::DIEHandler, which
implements the existing DWARF parser's handler interface, given a
handler written to a more comfortable, object-orient interface. The
comments in dwarf2diehandler.h provide more detail.
a=jimblandy, r=ccoutant
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@495 4c0a9323-5329-0410-9bdc-e9ce6186880e
This adds a new variable, TEST_WRAPPER, to src/tools/linux/dump_syms.
Comments in the patch provide details.
This patch also moves the public variable section to sit after the
public phony targets.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@486 4c0a9323-5329-0410-9bdc-e9ce6186880e
Previous patches added unit tests for the STABS parser and the
Breakpad symbol file writer; this adds unit tests for the "dumper"
class that sits between them, receiving data from the parser and
handing it to the writer. So now the whole pathway has coverage.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@467 4c0a9323-5329-0410-9bdc-e9ce6186880e
Adjust Module's interface a bit to facilitate testing:
- Make AssignSourceIds something a client can call --- it's perfectly
well-defined, so this is an okay change.
- Add GetFunctions, GetFiles and FindExistingfile member functions,
which the test harness will use to get results to examine.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@466 4c0a9323-5329-0410-9bdc-e9ce6186880e
Move the DWARF parser, and the functioninfo.cc DWARF consumer, from
src/common/mac/dwarf to src/commmon/dwarf, so that it can be shared
between the Mac and Linux dumpers.
Fix up #include directives, multiple inclusion protection macros, and
Xcode build files.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@446 4c0a9323-5329-0410-9bdc-e9ce6186880e
The test system is based on Google C++ Testing Framework and the
Google C++ Mocking Framework.
This includes a parser that turns human-readable input files ("mock
stabs") into .stab and .stabstr section contents, which we can then
pass to a StabsReader instance, using a handler object written with
GoogleMock. The 'make check' target in src/tools/linux/dump_syms runs
this.
The supplied input file is pretty small, but I've done coverage
testing, and it does cover the parser.
I thought the mock stabs parser would be less elaborate than it turned
out to be. Lesson learned.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@444 4c0a9323-5329-0410-9bdc-e9ce6186880e
Use GNU Make features to make the dumper, unit tests, and maintenance
targets more independent, so I get fewer conflicts as I work on
different parts of the patch series.
In particular:
- Provide targets to run tests and produce test coverage reports.
- Gather C and C++ build rules in one place.
- Avoid variables that list object files, as pattern rules can compute
these values directly from the dependencies.
- Use VPATH to find sources in other directories.
a=jimb, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@441 4c0a9323-5329-0410-9bdc-e9ce6186880e
src/linux/common/module.h defines a new class, google_breakpad::Module,
that can represent the contents of a breakpad symbol file. Module::Write
writes a well-formed symbol file to the given stream.
src/linux/common/dump_symbols.cc can now lose its symbol-file-writing
code, and change DumpStabsHandler to populate a Module object, rather
than the old SymbolInfo/SourceFileInfo/... collection of types.
The code to compute function and line sizes, even in the absence of
reliable size data in STABS, is moved into a new Finalize method of
DumpStabsHandler, which is responsible for completing the Module's
contents.
a=jimblandy
r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@380 4c0a9323-5329-0410-9bdc-e9ce6186880e
