These three classes have no external dependencies, but they are used
from various low-level APIs. Moving them down to Utility improves
overall code layering (although it still does not break any particular
dependency completely).
The XCode project will need to be updated after this change.
Differential Revision: https://reviews.llvm.org/D49740
llvm-svn: 339127
Summary:
During the previous attempt to generalize the UUID class, it was
suggested that we represent invalid UUIDs as length zero (previously, we
used an all-zero UUID for that). This meant that some valid build-ids
could not be represented (it's possible however unlikely that a checksum of
some file would be zero) and complicated adding support for variable
length build-ids (should a 16-byte empty UUID compare equal to a 20-byte
empty UUID?).
This patch resolves these issues by introducing a canonical
representation for an invalid UUID. The slight complication here is that
some clients (MachO) actually use the all-zero notation to mean "no UUID
has been set". To keep this use case working (while making it very
explicit about which construction semantices are wanted), replaced the
UUID constructors and the SetBytes functions with named factory methods.
- "fromData" creates a UUID from the given data, and it treats all bytes
equally.
- "fromOptionalData" first checks the data contents - if all bytes are
zero, it treats this as an invalid/empty UUID.
Reviewers: clayborg, sas, lemo, davide, espindola
Subscribers: emaste, lldb-commits, arichardson
Differential Revision: https://reviews.llvm.org/D48479
llvm-svn: 335612
DynamicLoaderDarwinKernel plugin. Created a new function ReadMachHeader
and instead of reading through the target cached memory reader,
start by reading only a mach header sized chunk of memory, then
check it for a valid mach-o magic # and use the size of the load
commands to pre-fetch the entire load commands of the kext which
is the only thing we're going to read, instead of letting the generic
mach-o parser read it in 512 byte chunks.
Functionally this is doing exactly the same thing as before, but by
cutting down on the # of packets going back and forth, even on a
local connection it's close to a quarter faster than it was before.
<rdar://problem/38570146>
llvm-svn: 334995
Summary:
This has multiple advantages:
- we need only one function argument/instance variable instead of three
- no need to default initialize variables
- no custom parsing code
- VersionTuple has comparison operators, which makes version comparisons much
simpler
Reviewers: zturner, friss, clayborg, jingham
Subscribers: emaste, lldb-commits
Differential Revision: https://reviews.llvm.org/D47889
llvm-svn: 334950
SetFile has an optional style argument which defaulted to the native
style. This patch makes that argument mandatory so clients of the
FileSpec class are forced to think about the correct syntax.
At the same time this introduces a (protected) convenience method to
update the file from within the FileSpec class that keeps the current
style.
These two changes together prevent a potential pitfall where the style
might be forgotten, leading to the path being updated and the style
unintentionally being changed to the host style.
llvm-svn: 334663
Summary: When compiling with modules, these missing includes cause the build to fail (as the header can't be compiled into a module).
Subscribers: ki.stfu, lldb-commits
Differential Revision: https://reviews.llvm.org/D47412
llvm-svn: 333345
Summary:
The plugin already builds fine on other platforms (linux, at least). All
that was necessary was to revitalize the hack in PlatformDarwinKernel
(not a very pretty hack, but it gets us going at least).
I haven't done a thorough investigation of the state of the plugin on
other platforms, but at least the two core file tests we have seem to
pass, so I enable them.
Reviewers: JDevlieghere, jasonmolenda
Subscribers: lldb-commits, mgorny
Differential Revision: https://reviews.llvm.org/D47133
llvm-svn: 332997
This brings the LLDB configuration closer to LLVM's and removes visual
clutter in the source code by removing the @brief commands from
comments.
This patch also reflows the paragraphs in all doxygen comments.
See also https://reviews.llvm.org/D46290.
Differential Revision: https://reviews.llvm.org/D46321
llvm-svn: 331373
This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.
FYI, the script I used was:
import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
header = ""
text = ""
comment = re.compile(r'^( *//) ([^ ].*)$')
special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
for line in f:
match = comment.match(line)
if match and not special.match(match.group(2)):
# skip intentionally short comments.
if not text and len(match.group(2)) < 40:
out.write(line)
continue
if text:
text += " " + match.group(2)
else:
header = match.group(1)
text = match.group(2)
continue
if text:
filled = textwrap.wrap(text, width=(78-len(header)),
break_long_words=False)
for l in filled:
out.write(header+" "+l+'\n')
text = ""
out.write(line)
os.rename(tmp, sys.argv[1])
Differential Revision: https://reviews.llvm.org/D46144
llvm-svn: 331197
When rendezvous structure is not initialized we need to set up
rendezvous breakpoint anyway. In this case the code will locate
dynamic loader (interpreter) and look for known function names.
This is r322209, but with fixed VDSO loading fixed.
Bug: https://bugs.llvm.org/show_bug.cgi?id=25806
Differential Revision: https://reviews.llvm.org/D41533
llvm-svn: 322251
When rendezvous structure is not initialized we need to set up
rendezvous breakpoint anyway. In this case the code will locate
dynamic loader (interpreter) and look for known function names.
Bug: https://bugs.llvm.org/show_bug.cgi?id=25806
Differential Revision: https://reviews.llvm.org/D41533
llvm-svn: 322209
but still listed in the kernel's kext table with the kernel
binary UUID. This resulted in the kernel text section being
loaded at the kext address and problems ensuing. Instead,
if there is a kext with the same UUID as the kernel, lldb
should skip over it.
<rdar://problem/35757689>
llvm-svn: 319500
The rationale here is that ArchSpec is used throughout the codebase,
including in places which should not depend on the rest of the code in
the Core module.
This commit touches many files, but most of it is just renaming of
#include lines. In a couple of cases, I removed the #include ArchSpec
line altogether, as the file was not using it. In one or two places,
this necessitated adding other #includes like lldb-private-defines.h.
llvm-svn: 318048
Summary:
This is required to be able to step through calls to external functions
that are not properly marked with __declspec(dllimport). When a call
like this is emitted, the linker will inject a trampoline to produce an
indirect call through the IAT.
Reviewers: zturner, jingham
Reviewed By: jingham
Subscribers: sas, jingham, lldb-commits
Differential Revision: https://reviews.llvm.org/D22231
llvm-svn: 314045
Summary:
It defined a couple of types (condition_t) which we don't use anymore,
as we have c++11 goodies now. I remove these definitions.
Also it unnecessarily included a couple of headers which weren't
necessary for it's operation. I remove these, and place the includes in
the relevant files (usually .cpp, usually in Host code) which use them.
This allows us to reduce namespace pollution in most of the lldb files
which don't need the OS-specific definitions.
Reviewers: zturner, jingham
Subscribers: ki.stfu, lldb-commits
Differential Revision: https://reviews.llvm.org/D35113
llvm-svn: 308304
Summary:
On linux on ppc64le some of the enums in AuxVector have the same name
as macros defined in the system.
Reviewers: mikesart, labath
Reviewed By: labath
Subscribers: joerg, gut, krytarowski, lldb-commits
Differential Revision: https://reviews.llvm.org/D35065
Patch by Bruno Rosa <bruno.rosa@eldorado.org.br>
llvm-svn: 307632
Summary:
It had a dependency on StringConvert and file reading code, which is not
in Utility. I've replaced that code by equivalent llvm operations.
I've added a unit test to demonstrate that parsing a file still works.
Reviewers: zturner, jingham
Subscribers: kubamracek, mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D34625
llvm-svn: 306394
Summary:
This is basically a revert of D16107 and parts of D10800, which were
trying to get vdso loading working. They did this by implementing a
generic load-an-elf-file from memory approach, which is not correct,
since we cannot assume that an elf file is loaded in memory in full (it
usually isn't, as there's no need to load section headers for example).
This meant that we would read garbage instead of section sizes, and if
that garbage happened to be a large number, we would crash while trying
to allocate a buffer to accomodate the hypothetical section.
Instead of this, I add a bit of custom code to load the vdso to
DynamicLoaderPOSIXDYLD (which already needed to handle the vdso
specially). I determine the size of the memory to read using
Process::GetMemoryRegionInfo, which is information coming from the OS,
and cannot be forged by a malicious/misbehaving application.
Reviewers: eugene, clayborg
Subscribers: lldb-commits, ravitheja, tberghammer, emaste
Differential Revision: https://reviews.llvm.org/D34352
llvm-svn: 305780
It was returning const std::string& which was leading to
unnecessary copies all over the place, and preventing people
from doing things like Dict->GetValueForKeyAsString("foo", ref);
llvm-svn: 302875
This renames the LLDB error class to Status, as discussed
on the lldb-dev mailing list.
A change of this magnitude cannot easily be done without
find and replace, but that has potential to catch unwanted
occurrences of common strings such as "Error". Every effort
was made to find all the obvious things such as the word "Error"
appearing in a string, etc, but it's possible there are still
some lingering occurences left around. Hopefully nothing too
serious.
llvm-svn: 302872
If we can't find the "is dyld locked" symbol, assume it is safe
to load the image unless we only have 1 image loaded - in which case
we are in _dyld_start and it is definitely NOT safe.
Also add a little better errors to that function, and better logging
in SBProcess.cpp.
<rdar://problem/30174817>
llvm-svn: 302327
Summary:
Include initial support for:
- single step mode (PT_STEP)
- single step trap handling (TRAP_TRACE)
- exec() trap (TRAP_EXEC)
- add placeholder interfaces for FPR
- initial code for NetBSD core(5) files
- minor tweaks
While there improve style of altered elf-core/ files.
This code raises the number of passing tests on NetBSD to around 50% (600+/1200+).
The introduced code is subject to improve afterwards for additional features and bug fixes.
Sponsored by <The NetBSD Foundation>
Reviewers: labath, joerg, emaste, kettenis
Reviewed By: labath
Subscribers: srhines, #lldb
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D31450
llvm-svn: 299109
Summary:
NetBSD is a modern ELF UNIX-like system.
There is requires DynamicLoaderPOSIXDYLD e.g. for ELF AUXV reading from the client.
Sponsored by <The NetBSD Foundation>
Reviewers: labath, joerg, kettenis
Reviewed By: labath
Subscribers: #lldb
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D31192
llvm-svn: 298409
All references to Host and Core have been removed, so this
class can now safely be lowered into Utility.
Differential Revision: https://reviews.llvm.org/D30559
llvm-svn: 296909
This in turn triggered some fallout where other files had
been transitively picking up includes that they needed from
FileSpec.h, so I've fixed those up as well.
llvm-svn: 296855
This moves the following classes from Core -> Utility.
ConstString
Error
RegularExpression
Stream
StreamString
The goal here is to get lldbUtility into a state where it has
no dependendencies except on itself and LLVM, so it can be the
starting point at which to start untangling LLDB's dependencies.
These are all low level and very widely used classes, and
previously lldbUtility had dependencies up to lldbCore in order
to use these classes. So moving then down to lldbUtility makes
sense from both the short term and long term perspective in
solving this problem.
Differential Revision: https://reviews.llvm.org/D29427
llvm-svn: 293941
starts up, we need to clear the target's image list and only add
the binaries into the target that are actually present in this
process run.
<rdar://problem/29857613>
llvm-svn: 292454
source/Plugins/DynamicLoader/Darwin-Kernel/DynamicLoaderDarwinKernel.cpp:403:21: warning: comparison of integers of different signs: 'int' and 'size_t' (aka 'unsigned long') [-Wsign-compare]
for (int i = 0; i < llvm::array_lengthof (magicks); i++)
~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Differential Revision: https://reviews.llvm.org/D27081
llvm-svn: 287848
This is a large API change that removes the two functions from
StreamString that return a std::string& and a const std::string&,
and instead provide one function which returns a StringRef.
Direct access to the underlying buffer violates the concept of
a "stream" which is intended to provide forward only access,
and makes porting to llvm::raw_ostream more difficult in the
future.
Differential Revision: https://reviews.llvm.org/D26698
llvm-svn: 287152
memory cache subsystem so we're reading only the 4 bytes
needed to check for the magic word at the start of a mach-o
binary instead of the default 512 block. It can be a small
performance help to reduce the size of memory reads from
possibly unmapped memory.
<rdar://problem/29256385>
llvm-svn: 286926
This is forcing to use Error::success(), which is in a wide majority
of cases a lot more readable.
Differential Revision: https://reviews.llvm.org/D26481
llvm-svn: 286561
Pavel Labath