Commit graph

15 commits

Author SHA1 Message Date
Tyrel Russell 0622f68827 Move the dwarf2reader objects into google_breakpad namespace to make it consistent with cfi_assembler.cc
Bug: b/189249305
Change-Id: I3433ff5c41d2f66ab292fbecb969f2cd08d24b29
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2920506
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2021-05-26 17:46:49 +00:00
Mike Frysinger 09b056975d fix pointer style to match the style guide
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>
2020-07-15 06:20:02 +00:00
Joshua Peraza a2d3e8b2d5 Use stdint.h numeric types in tests
Change-Id: Iaa79c5c7c70ca953256cd39cc9f6f4f139c696af
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2153567
Reviewed-by: Mike Frysinger <vapier@chromium.org>
2020-04-16 19:25:06 +00:00
Joshua Peraza 86bf444128 Use stdint.h numeric types
Change-Id: Ib815b0757539145c005d828080b92cbfa971a21b
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2141226
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
2020-04-09 00:09:40 +00:00
Nelson Billing f32b83eb08 Enable reading DWARF4 CIEs with 32 bit addresses.
- Reading DWARF4 CIEs was added in
https://chromium-review.googlesource.com/c/breakpad/breakpad/+/406012 but it
was only enabled for 64bit builds, since it would error out if the CIE
address size was not 8 bytes.
- Added a unit test to ensure that 32bit continues to work.

Change-Id: I824bb40cdf12056d39da335adb55ed315970fb88
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1941034
Reviewed-by: Ivan Penkov <ivanpe@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2019-12-05 21:20:42 +00:00
Scott Graham 1f574b52c6 Basic handling of CIE version 4 in dwarf reading
CIE looks like it's been emitted by clang since ~May 2015 [1]. This
means that we didn't have any CFI because this parse aborted, which
meant that all stack walks reverted to stack scanning. Allow expected
values for address size and segment descriptor size through so that
dump_syms can generate at least somewhat reasonable data.

[1]: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20150518/277292.html

R=mark@chromium.org
BUG=chromium:627529

Change-Id: I6dc92f51c4afd25c2adff92c09ccb8bb03bf9112
Reviewed-on: https://chromium-review.googlesource.com/406012
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-11-02 02:52:37 +00:00
Mike Frysinger bc44efdc27 convert to uint8_t* for binary data to fix -Wnarrowing build errors
Newer gcc versions default to -Werror=narrowing when using newer C++
standards (which we do).  This causes issues when we try to stuff a
value like 0xea into a char -- the value is out of range for signed
char bytes.  That's when gcc throws an error:
.../bytereader_unittest.cc: In member function 'virtual void Reader_DW_EH_PE_absptr4_Test::TestBody()':
.../bytereader_unittest.cc:400:55: error: narrowing conversion of '234' from 'int' to 'char' inside { } [-Wnarrowing]

BUG=chromium:579384
TEST=`make check` passes
R=mark@chromium.org

Review URL: https://codereview.chromium.org/1605153004 .
2016-01-26 15:38:19 -05:00
ted.mielczarek@gmail.com aeffe1056f Use stdint types everywhere
R=mark at https://breakpad.appspot.com/535002/

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1121 4c0a9323-5329-0410-9bdc-e9ce6186880e
2013-03-06 14:04:42 +00:00
ivan.penkov@gmail.com 6de969a304 This change allows compiling the google-breakpad code using a global ::string class instead of std::string. For more details take a look at common/using_std_string.h
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@974 4c0a9323-5329-0410-9bdc-e9ce6186880e
2012-06-28 22:46:01 +00:00
jessicag.feedback@gmail.com bf407c0c77 Add includes for unittests that appear to need them.
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@870 4c0a9323-5329-0410-9bdc-e9ce6186880e
2011-10-17 19:08:31 +00:00
ted.mielczarek e193098543 Breakpad: Avoid using the C++ <cfoo> headers.
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
2010-06-25 16:57:07 +00:00
ted.mielczarek 35c41e00ee Breakpad Mac symbol dumper: Add new Mach-O reader class.
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
2010-06-25 16:56:16 +00:00
jimblandy 00dbb73752 Breakpad Linux dumper: Make changes requested by Neal Sidhwaney in issue 59002.
- Use manifest constants for 'z' augmentation letters.
- Fix typos and rearrange some code for legibility.

a=jimblandy, r=nealsid


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@560 4c0a9323-5329-0410-9bdc-e9ce6186880e
2010-03-29 18:31:53 +00:00
jimblandy a76aaa1442 Breakpad Linux dumper: Parse the .eh_frame section.
Extend google_breakpad::CFISection with the ability to produce
.eh_frame data. Entry headers have a different format, and pointers
can be encoded in new and fascinating ways.

Extend dwarf2reader::CallFrameInfo to be able to parse either DWARF
CFI or .eh_frame data, as determined by an argument to the
constructor. Cope with variations in header formats, encoded pointers,
and additional data in 'z' augmentation data blocks. Extend the unit
tests appropriately.

Extend dump_syms to look for a .eh_frame section, and if it is
present, find the necessary base addresess and parse its contents.

There's no need for DwarfCFIToModule to check the version numbers; if
CallFrameInfo can parse it, DwarfCFIToModule should be able to handle
it. Adjust tests accordingly.

a=jimblandy, r=nealsid


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@552 4c0a9323-5329-0410-9bdc-e9ce6186880e
2010-03-16 16:37:50 +00:00
jimblandy 3e768ed9c0 Breakpad Linux dumper: Add support for dumping DWARF CFI as STACK CFI records.
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
2010-03-16 16:31:49 +00:00