Summary:
After rLLDB365761, and with `LLVM_ENABLE_ABI_BREAKING_CHECKS` enabled,
launching any process on FreeBSD crashes lldb with:
```
Expected<T> must be checked before access or destruction.
Expected<T> value was in success state. (Note: Expected<T> values in success mode must still be checked prior to being destroyed).
```
This is because `m_operation_thread` and `m_monitor_thread` were wrapped
in `llvm::Expected<>`, but this requires the objects to be correctly
initialized before accessing them.
To fix the crashes, use `llvm::Optional<>` for the members (as indicated
by labath), and use local variables to store the return values of
`LaunchThread` and `StartMonitoringChildProcess`. Then, only assign to
the member variables after checking if the return values indicated
success.
Reviewers: devnexen, emaste, MaskRay, mgorny
Reviewed By: devnexen
Subscribers: jfb, labath, krytarowski, lldb-commits
Differential Revision: https://reviews.llvm.org/D68723
llvm-svn: 374444
When debugging a large program like clang and doing "frame variable
*this", the ValueObject pretty printer is doing hundreds of scoped
FindTypes lookups. The ones that take longest are the ones where the
DWARFDeclContext ends in something like ::Iterator which produces many
false positives that need to be filtered out *after* extracting the
DIEs. This patch demonstrates a way to filter out false positives at
the accerator table lookup step.
With this patch
lldb clang-10 -o "b EmitFunctionStart" -o r -o "f 2" -o "fr v *this" -b -- ...
goes (in user time) from 5.6s -> 4.8s
or (in wall clock) from 6.9s -> 6.0s.
Differential Revision: https://reviews.llvm.org/D68678
llvm-svn: 374401
CppModuleConfiguration is the most likely point of failure when we have weird
setups where we fail to load a C++ module. With this logging it should be easier
to figure out why we can't find a valid configuration as the configuration only
depends on the list of file paths.
llvm-svn: 374350
Unwind plan augmentation should compute the plan row at offset x from
the instruction before offset x, but currently we compute it from the
instruction at offset x. Note that this behavior is a regression
introduced when moving the x86 assembly inspection engine to its own
file
(1c9858b298 (diff-375a2be066db6f34bb9a71442c9b71fcL913));
the original version handled this properly by copying the previous
instruction out before advancing the instruction pointer.
The relevant bug with more info is here: https://bugs.llvm.org/show_bug.cgi?id=43561
Differential Revision: https://reviews.llvm.org/D68454
Patch by Jaroslav Sevcik <jarin@google.com>.
llvm-svn: 374342
The "b" (binary) flag is meaningless most of the time, but the relevant
standars allow it. The standards permit one to spell it both as "r+b"
and "rb+", so handle both cases.
This fixes TestFileHandle.test_binary_inout with python2.
llvm-svn: 374331
Summary:
This patch introduces a switch, based on the environment variable
`LLDB_USE_LLDB_SERVER`, to determine whether to use the `ProcessWindows` plugin
(the old way) or the `lldb-server` way for debugging on Windows.
Reviewers: labath, amccarth, asmith, stella.stamenova
Reviewed By: labath, amccarth
Subscribers: mstorsjo, abidh, JDevlieghere, lldb-commits, leonid.mashinskiy
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68258
llvm-svn: 374325
Summary:
The SearchCallback has a bool parameter that we always set to false, we never use in any callback implementation and that also changes its name
from one file to the other (either `containing` and `complete`). It was added in the original LLDB check in, so there isn't any history what
this was supposed to be, so let's just remove it.
Reviewers: jingham, JDevlieghere, labath
Reviewed By: jingham, labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68696
llvm-svn: 374313
Summary:
The `if (*cstr_end == '\0')` in the previous code checked if the previous loop terminated because it
found a null terminator or because it reached the end of the data. However, in the case that we hit
the end of the data before finding a null terminator, `cstr_end` points behind the last byte in our
data and `*cstr_end` reads the memory behind the array (which may be uninitialised)
This patch just rewrites that function use `std::find` and adds the relevant unit tests.
Reviewers: labath
Reviewed By: labath
Subscribers: abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68773
llvm-svn: 374311
Stack unwinding was sometimes failing when trying to unwind stacks in 32 bit ARM. I discovered this was because the EH frame register numbers were not set. This patch fixes this issue and adds a unit test to verify this doesn't regress.
Differential Revision: https://reviews.llvm.org/D68088
llvm-svn: 374246
Summary: The PlaceholderObjectFile has an assert in SetLoadAddress that fires if "m_base == value" is not true. To avoid this, we create check that the base address matches, and if it doesn't we clear the module that was found using the UUID so that we create a new PlaceholderObjectFile. Added a test to cover this issue.
Reviewers: labath, aadsm, dvlahovski
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68106
llvm-svn: 374242
Summary:
There a a few call sites that use FILE* which are easy to
fix without disrupting anything else.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: JDevlieghere, labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68444
llvm-svn: 374239
Summary:
This patch adds SWIG typemaps that can convert arbitrary python
file objects into lldb_private::File.
A SBFile may be initialized from a python file using the
constructor. There are also alternate, tagged constructors
that allow python files to be borrowed, and for the caller
to control whether or not the python I/O methods will be
called even when a file descriptor is available.I
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: zturner, amccarth, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68188
llvm-svn: 374225
Summary:
We now have valid files that will return NULL from GetStream().
libedit and the LLDB gui are the only places left that need FILE*
streams. Both are doing curses-like user interaction that only
make sense with a real terminal anyway, so there is no need to convert
them off of their use of FILE*. But we should check for null streams
before enabling these features.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: JDevlieghere, labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68677
llvm-svn: 374197
The lifetime of a ValueObject and all its derivative ValueObjects (children, clones, etc.) is managed by a ClusterManager. These objects are only destroyed when every shared pointer to any of the managed objects in the cluster is destroyed. This means that no object in the cluster can store a shared pointer to another object in the cluster without creating a memory leak of the entire cluster. However, some of the synthetic children front-end implementations do exactly this; this patch fixes that.
Differential Revision: https://reviews.llvm.org/D68641
llvm-svn: 374195
Testing whether a name is mangled or not is extremely cheap and can be
done by looking at the first two characters. Mangled knows how to do
it. On the flip side, many call sites that currently pass in an
is_mangled determination do not know how to correctly do it (for
example, they leave out Swift mangling prefixes).
This patch removes this entry point and just forced Mangled to
determine the mangledness of a string itself.
Differential Revision: https://reviews.llvm.org/D68674
llvm-svn: 374180
David added the JamCRC implementation in r246590. More recently, Eugene
added a CRC-32 implementation in r357901, which falls back to zlib's
crc32 function if present.
These checksums are essentially the same, so having multiple
implementations seems unnecessary. This replaces the CRC-32
implementation with the simpler one from JamCRC, and implements the
JamCRC interface in terms of CRC-32 since this means it can use zlib's
implementation when available, saving a few bytes and potentially making
it faster.
JamCRC took an ArrayRef<char> argument, and CRC-32 took a StringRef.
This patch changes it to ArrayRef<uint8_t> which I think is the best
choice, and simplifies a few of the callers nicely.
Differential revision: https://reviews.llvm.org/D68570
llvm-svn: 374148
When playing with the C++ module prototype I noticed I can get LLDB to crash
by making a result type that depends on __make_integer_seq (a BuiltinTemplate)
which is not supported by the ASTImporter yet. This causes the ASTImporter to emit
a diagnostic when copying the type to the ScratchASTContext. As deporting the result
type is done after we are done parsing and the Clang's diagnostic engine asserts that
it can only be used during parsing, it crashes LLDB while trying to render the diagnostic
in the HandleDiagnostic method of ClangDiagnosticManagerAdapter.
This patch just moves the HandleDiagnostic call to Clang behind our check that we still
have a DiagnosticManager (which we remove after parsing) which prevents the assert
from firing. We also shouldn't ignore such diagnostics, so I added a log statement for
them.
There doesn't seem to way to test this as these diagnostic only happen when we copy
a node that's not supported by the ASTImporter which should never happen once
we can copy everything with the ASTImporter, so every test case we add here will
eventually become invalid.
(Note that most of this diff is just whitespace changes as we now use an early exit
instead of a huge 'if' block).
llvm-svn: 374145
Summary:
This is a redo of D68069 because I reverted it due to some concerns that were now addressed along with the new comments that @labath added.
I found a case where the main android binary (app_process32) had thumb code at its entry point but no entry in the symbol table indicating this. This made lldb set a 4 byte breakpoint at that address (we default to arm code) instead of a 2 byte one (like we should for thumb).
The big deal with this is that the expression evaluator uses the entry point as a way to know when a JITed expression has finished executing by putting a breakpoint there. Because of this, evaluating expressions on certain android devices (Google Pixel something) made the process crash.
This was fixed by checking this specific situation when we parse the symbol table and add an artificial symbol for this 2 byte range and indicating that it's arm thumb.
I created 2 unit tests for this, one to check that now we know that the entry point is arm thumb, and the other to make sure we didn't change the behaviour for arm code.
I also run the following on the command line with the `app_process32` where I found the issue:
**Before:**
```
(lldb) dis -s 0x1640 -e 0x1644
app_process32[0x1640]: .long 0xf0004668 ; unknown opcode
```
**After:**
```
(lldb) dis -s 0x1640 -e 0x1644
app_process32`:
app_process32[0x1640] <+0>: mov r0, sp
app_process32[0x1642]: andeq r0, r0, r0
```
Reviewers: clayborg, labath, wallace, espindola
Reviewed By: labath
Subscribers: labath, lldb-commits, MaskRay, kristof.beyls, arichardson, emaste, srhines
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68533
llvm-svn: 374132
When ingesting aranges from a dSYM it makes sense to always trust the
contents of the accelerator table since it always comes from
dsymutil. According to Instruments, skipping the decoding of all CU
DIEs to get at the DW_AT_ranges attribute removes ~3.5 seconds from
setting a breakpoint by file/line when debugging clang with a
dSYM. Interestingly on the wall clock the speedup is less noticeable,
but still present.
rdar://problem/56057688
Differential Revision: https://reviews.llvm.org/D68655
llvm-svn: 374117
LLDB appears to have at least partial support for PPC, but PPC on Mach
isn't a thing AFAIK.
Differential Revision: https://reviews.llvm.org/D68661
llvm-svn: 374114
TestCPP11EnumTypes.py should have covered all our bases when it comes
to typed enums, but it missed the regression introduced in r374066.
The reason it didn't catch it is somewhat funny: the test was copied
over from another test that recompiled a source file with a different
base type every time, but neither the test source nor the python code
was adapted for testing enums. As a result, this test was just running
8 times the exact same checks on the exact same binary.
This commit fixes the coverage and addresses the issue revealed by
the new tests.
llvm-svn: 374108
LLDB's signal handlers call SBDebugger methods, which themselves try to
be really careful about not doing anything non-signal safe. The
Reproducer record macro is not careful though, and does unsafe things
which potentially caused LLDB to crash. Given that these methods are not
particularly interesting I've swapped the RECORD macros with DUMMY ones,
so that we still register the API boundary but don't do anything
non-signal safe.
Thanks Jim for figuring this one out!
llvm-svn: 374104
When an enumerator has an unsigned type and its high bit set, the
code introduced in r374067 would fail to match it due to a sign
extension snafu. This commit fixes this aspec of the code and should
fix the bots.
I think it's not a complete fix though, I'll add more test coverage
and additional tweaks in a follow-up commit.
llvm-svn: 374095
Summary:
Python APIs nearly all can return an exception. They do this
by returning NULL, or -1, or some such value and setting
the exception state with PyErr_Set*(). Exceptions must be
handled before further python API functions are called. Failure
to do so will result in asserts on debug builds of python.
It will also sometimes, but not usually result in crashes of
release builds.
Nearly everything in PythonDataObjects.h needs to be updated
to account for this. This patch doesn't fix everything,
but it does introduce some new methods using Expected<>
return types that are safe to use.
split off from https://reviews.llvm.org/D68188
Reviewers: JDevlieghere, jasonmolenda, labath, zturner
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68547
llvm-svn: 374094
This makes parsing the symbol table of clang marginally faster. (Hashtable versus tree).
Differential Revision: https://reviews.llvm.org/D68605
llvm-svn: 374084
This change is mostly performance-neutral since our regex engine is
fast, but it's IMHO slightly more readable. Also, matching matching
parenthesis is not a great match for regular expressions.
Differential Revision: https://reviews.llvm.org/D68609
llvm-svn: 374082
Summary:
Before the pointer variable `args_dict` was assigned the result of an
allocation with `new` and then `args_dict` is passed to
`GetValueForKeyAsDictionary` which immediatly and unconditionally
assigns `args_dict` to `nullptr`:
```
bool GetValueForKeyAsDictionary(llvm::StringRef key,
Dictionary *&result) const {
result = nullptr;
```
This caused a memory leak which was found in my coverity scan instance
under CID 224753: https://scan.coverity.com/projects/kwk-llvm-project.
Reviewers: jankratochvil, teemperor
Reviewed By: teemperor
Subscribers: teemperor, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68638
llvm-svn: 374071
Summary:
Using enumerators as flags is standard practice. This patch adds
support to LLDB to display such enum values symbolically, eg:
(E) e1 = A | B
If enumerators don't cover the whole value, the remaining bits are
displayed as hexadecimal:
(E) e4 = A | 0x10
Detecting whether an enum is used as a bitfield or not is
complicated. This patch implements a heuristic that assumes that such
enumerators will either have only 1 bit set or will be a combination
of previous values.
This patch doesn't change the way we currently display enums which the
above heuristic would not consider as bitfields.
Reviewers: jingham, labath
Subscribers: lldb-commits
Differential Revision: https://reviews.llvm.org/D67520
llvm-svn: 374067
Seems I wrongly merged an old patch.
Reverts the change related to python dir for windows.
FileSpec should always contain normalized path. I.e. using '/' even in
windows.
llvm-svn: 373998
The symtab parser in ObjectFileMachO has logic to coalesce debug (STAB)
and non-debug symbols, based on the address and the symbol name for
static (STSYM) and global symbols (GSYM) respectively. It makes the
assumption that the debug variant is always encountered first. Rather
than creating a second entry in the symbol table for the non-debug
symbol, the latter gets merged into the existing debug symbol.
This breaks when the linker emits the non-debug symbol first. We'd end
up with two entries in the symbol table, each containing part of the
information LLDB relies on. Indeed, commenting out the merging logic
breaks the test suite spectacularly.
This patch solves that problem by always parsing the debug symbols
first. This guarantees that the assumption for merging holds.
I'm not particularly happy with adding a lambda, but after numerous
attempts this is the best solution I could come up with. The symtab
parsing logic is pretty complex in that it touches a lot of things. I've
experienced first hand that it's very easy to break things. I believe
this approach strikes a balance between fixing the issue while limiting
the risk of regressions.
Differential revision: https://reviews.llvm.org/D68536
llvm-svn: 373994
Based on mgorny@'s D67890
There are 3 places where python site-package path is calculated
independently:
1. finishSwigPythonLLDB.py where files are written to site-packages.
2. lldb/scripts/CMakeLists.txt where site-packages are installed.
3. ScriptInterpreterPython.cpp where site-packages are added to
PYTHONPATH.
This change creates the path once and use it everywhere. So that they
will not go out of sync.
Also it provides a chance for cross compiling users to specify the right
path for site-packages.
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68442
llvm-svn: 373991
Summary:
Someone wrote SetEffectiveSetEffectiveGroupID instead of SetEffectiveUserID.
After this fix, the android process list can show user names, e.g.
```
PID PARENT USER GROUP EFF USER EFF GROUP TRIPLE ARGUMENTS
====== ====== ========== ========== ========== ========== ============================== ============================
529 1 root 0 root 0 /sbin/ueventd
```
Reviewers: labath,clayborg,aadsm,xiaobai
Subscribers:
llvm-svn: 373953
Summary:
For context: https://reviews.llvm.org/D68293
We need a way to show all the processes on android regardless of the user id.
When you run `platform process list`, you only see the processes with the same user as the user that launched lldb-server. However, it's quite useful to see all the processes, though, and it will lay a foundation for full apk debugging support from lldb.
Before:
```
PID PARENT USER TRIPLE NAME
====== ====== ========== ======================== ============================
3234 1 aarch64-unknown-linux-android adbd
8034 3234 aarch64-unknown-linux-android sh
9096 3234 aarch64-unknown-linux-android sh
9098 9096 aarch64-unknown-linux-android lldb-server
(lldb) ^D
```
Now:
```
(lldb) platform process list -x
205 matching processes were found on "remote-android"
PID PARENT USER TRIPLE NAME
====== ====== ========== ======================== ============================
1 0 init
524 1 init
525 1 init
531 1 ueventd
568 1 logd
569 1 aarch64-unknown-linux-android servicemanager
570 1 aarch64-unknown-linux-android hwservicemanager
571 1 aarch64-unknown-linux-android vndservicemanager
577 1 aarch64-unknown-linux-android qseecomd
580 577 aarch64-unknown-linux-android qseecomd
...
23816 979 com.android.providers.calendar
24600 979 com.verizon.mips.services
27888 979 com.hualai
28043 2378 com.android.chrome:sandboxed_process0
31449 979 com.att.shm
31779 979 com.samsung.android.authfw
31846 979 com.samsung.android.server.iris
32014 979 com.samsung.android.MtpApplication
32045 979 com.samsung.InputEventApp
```
Reviewers: labath,xiaobai,aadsm,clayborg
Subscribers:
llvm-svn: 373931
Split out the logic to parse structure-like types into a separate
function, in an attempt to reduce the complexity of ParseTypeFromDWARF.
Inspired by discussion in https://reviews.llvm.org/D68130.
Differential Revision: https://reviews.llvm.org/D68422
llvm-svn: 373927
Since D68289, a couple of tests on linux started being extremely flaky.
All of them were doing name-based attaching and were failing because
they couldn't find an unambiguous process to attach to.
The patch above changed the process finding logic, so that failure to
find a process name does not constitute an error. This meant that a lot
more transient processes showed up in the process list during the test
suite run. Previously, these processes would not appear as they would be
gone by the time we went to read their executable name, arguments, etc.
Now, this alone should not cause an issue were it not for the fact that
we were considering a process with no name as if it matched by default
(even if we were explicitly searching for a process with a specified
name). This meant that any of the "transient" processes with no name
would make the name match ambiguous. That clearly seems like a bug to me
so I fix that.
llvm-svn: 373925
Summary:
If the .symtab section is stripped from the binary it might be that
there's a .gnu_debugdata section which contains a smaller .symtab in
order to provide enough information to create a backtrace with function
names or to set and hit a breakpoint on a function name.
This change looks for a .gnu_debugdata section in the ELF object file.
The .gnu_debugdata section contains a xz-compressed ELF file with a
.symtab section inside. Symbols from that compressed .symtab section
are merged with the main object file's .dynsym symbols (if any).
In addition we always load the .dynsym even if there's a .symtab
section.
For example, the Fedora and RHEL operating systems strip their binaries
but keep a .gnu_debugdata section. While gdb already can read this
section, LLDB until this patch couldn't. To test this patch on a
Fedora or RHEL operating system, try to set a breakpoint on the "help"
symbol in the "zip" binary. Before this patch, only GDB can set this
breakpoint; now LLDB also can do so without installing extra debug
symbols:
lldb /usr/bin/zip -b -o "b help" -o "r" -o "bt" -- -h
The above line runs LLDB in batch mode and on the "/usr/bin/zip -h"
target:
(lldb) target create "/usr/bin/zip"
Current executable set to '/usr/bin/zip' (x86_64).
(lldb) settings set -- target.run-args "-h"
Before the program starts, we set a breakpoint on the "help" symbol:
(lldb) b help
Breakpoint 1: where = zip`help, address = 0x00000000004093b0
Once the program is run and has hit the breakpoint we ask for a
backtrace:
(lldb) r
Process 10073 stopped
* thread #1, name = 'zip', stop reason = breakpoint 1.1
frame #0: 0x00000000004093b0 zip`help
zip`help:
-> 0x4093b0 <+0>: pushq %r12
0x4093b2 <+2>: movq 0x2af5f(%rip), %rsi ; + 4056
0x4093b9 <+9>: movl $0x1, %edi
0x4093be <+14>: xorl %eax, %eax
Process 10073 launched: '/usr/bin/zip' (x86_64)
(lldb) bt
* thread #1, name = 'zip', stop reason = breakpoint 1.1
* frame #0: 0x00000000004093b0 zip`help
frame #1: 0x0000000000403970 zip`main + 3248
frame #2: 0x00007ffff7d8bf33 libc.so.6`__libc_start_main + 243
frame #3: 0x0000000000408cee zip`_start + 46
In order to support the .gnu_debugdata section, one has to have LZMA
development headers installed. The CMake section, that controls this
part looks for the LZMA headers and enables .gnu_debugdata support by
default if they are found; otherwise or if explicitly requested, the
minidebuginfo support is disabled.
GDB supports the "mini debuginfo" section .gnu_debugdata since v7.6
(2013).
Reviewers: espindola, labath, jankratochvil, alexshap
Reviewed By: labath
Subscribers: rnkovacs, wuzish, shafik, emaste, mgorny, arichardson, hiraditya, MaskRay, lldb-commits
Tags: #lldb, #llvm
Differential Revision: https://reviews.llvm.org/D66791
llvm-svn: 373891
This file really suffered from the Great Reformat. I'm adding a few
early returns to give the deeply nested code some more breathing room.
llvm-svn: 373778
I was writing an SB API client and it was crashing on:
bool DoExecute(SBDebugger dbg, char **command, SBCommandReturnObject &result) {
result = subcommand(dbg, "help");
That is because SBCommandReturnObject &result gets initialized inside LLDB by:
bool DoExecute(Args &command, CommandReturnObject &result) override {
// std::unique_ptr gets initialized here from `&result`!!!
SBCommandReturnObject sb_return(&result);
DoExecute(...);
sb_return.Release();
Differential revision: https://reviews.llvm.org/D67589
llvm-svn: 373775
Summary:
By default `platform process list` only shows the processes of the current user that lldb-server can parse.
There are several problems:
- apk programs don't have an executable file. They instead use a package name as identifier.
- each apk also runs under a different user. That's how android works
- because of the user permission, some files like /proc/<pid>/{environ,exe} can't be read.
This results in a very small process list.
This is a local run on my machine
```
(lldb) platform process list
2 matching processes were found on "remote-android"
PID PARENT USER TRIPLE NAME
====== ====== ========== ======================== ============================
23291 3177 aarch64-unknown-linux-android sh
23301 23291 aarch64-unknown-linux-android lldb-server
```
However, I have 700 processes running at this time.
By implementing a few fallbacks for android, I've expanded this list to 202, filtering out kernel processes, which would presumably appear in this list if the device was rooted.
```
(lldb) platform process list
202 matching processes were found on "remote-android"
PID PARENT USER TRIPLE NAME
====== ====== ========== ======================== ============================
...
12647 3208 aarch64-unknown-linux-android sh
12649 12647 aarch64-unknown-linux-android lldb-server
12653 982 com.samsung.faceservice
13185 982 com.samsung.vvm
15899 982 com.samsung.android.spay
16220 982 com.sec.spp.push
17126 982 com.sec.spp.push:RemoteDlcProcess
19772 983 com.android.chrome
20209 982 com.samsung.cmh:CMH
20380 982 com.google.android.inputmethod.latin
20879 982 com.samsung.android.oneconnect:Receiver
21212 983 com.tencent.mm
24459 1 aarch64-unknown-linux-android wpa_supplicant
25974 982 com.samsung.android.contacts
26293 982 com.samsung.android.messaging
28714 982 com.samsung.android.dialer
31605 982 com.samsung.android.MtpApplication
32256 982 com.bezobidny
```
Something to notice is that the architecture is unkonwn for all apks. And that's fine, because run-as would be required to gather this information and that would make this entire functionality massively slow.
There are still several improvements to make here, like displaying actual user names, which I'll try to do in a following diff.
Note: Regarding overall apk debugging support from lldb. I'm planning on having lldb spawn lldb-server by itself with the correct user, so that everything works well. The initial lldb-server used for connecting to the remote platform can be reused for such purpose. Furthermore, eventually lldb could also launch that initial lldb-server on its own.
Reviewers: clayborg, aadsm, labath, xiaobai
Subscribers: srhines, krytarowski, kristof.beyls, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68289
llvm-svn: 373758
Link against clang-cpp dylib rather than split libs when
CLANG_LINK_CLANG_DYLIB is enabled.
Differential Revision: https://reviews.llvm.org/D68456
llvm-svn: 373734
Summary:
We should get the TargetAPI lock here to prevent the process of being destroyed while we are in the function. Thanks Jim for explaining what's going on.
Fixes rdar://54424754
Reviewers: jingham
Reviewed By: jingham
Subscribers: JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67831
llvm-svn: 373725
Summary:
As we figured out in D67803, importing declarations from a temporary ASTContext that were originally from a persistent ASTContext
causes a bunch of duplicated declarations where we end up having declarations in the target AST that have no associated ASTImporter that
can complete them.
I haven't figured out how/if we can solve this in the current way we do things in LLDB, but in the modern-type-lookup this is solvable
as we have a saner architecture with the ExternalASTMerger. As we can (hopefully) make modern-type-lookup the default mode in the future,
I would say we try fixing this issue here. As we don't use the hack that was reinstated in D67803 during modern-type-lookup, the test case for this
is essentially just printing any kind of container in `std::` as we would otherwise run into the issue that required a hack like D67803.
What this patch is doing in essence is that instead of importing a declaration from a temporary ASTContext, we instead check if the
declaration originally came from a persistent ASTContext (e.g. the debug information) and we directly import from there. The ExternalASTMerger
is already connected with ASTImporters to these different sources, so this patch is essentially just two parts:
1. Mark our temporary ASTContext/ImporterSource as temporary when we import from the expression AST.
2. If the ExternalASTMerger sees we import from the expression AST, instead of trying to import these temporary declarations, check if we
can instead import from the persistent ASTContext that is already connected. This ensures that all records from the persistent source actually
come from the persistent source and are minimally imported in a way that allows them to be completed later on in the target AST.
The next step is to run the ASTImporter for these temporary expressions with the MinimalImport mode disabled, but that's a follow up patch.
This patch fixes most test failures with modern-type-lookup enabled by default (down to 73 failing tests, which includes the 22 import-std-module tests
which need special treatment).
Reviewers: shafik, martong
Reviewed By: martong
Subscribers: aprantl, rnkovacs, christof, abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68326
llvm-svn: 373711
Backing out because SymbolFile/Breakpad/symtab.test is failing and it seems to be a legit issue. Will investigate.
This reverts commit 72153f95ee4c1b52d2f4f483f0ea4f650ec863be.
llvm-svn: 373687
We previously failed to treat an array with an instantiation-dependent
but not value-dependent bound as being an instantiation-dependent type.
We now track the array bound expression as part of a constant array type
if it's an instantiation-dependent expression.
llvm-svn: 373685
Summary:
I found a case where the main android binary (app_process32) had thumb code at its entry point but no entry in the symbol table indicating this. This made lldb set a 4 byte breakpoint at that address (we default to arm code) instead of a 2 byte one (like we should for thumb).
The big deal with this is that the expression evaluator uses the entry point as a way to know when a JITed expression has finished executing by putting a breakpoint there. Because of this, evaluating expressions on certain android devices (Google Pixel something) made the process crash.
This was fixed by checking this specific situation when we parse the symbol table and add an artificial symbol for this 2 byte range and indicating that it's arm thumb.
I created 2 unit tests for this, one to check that now we know that the entry point is arm thumb, and the other to make sure we didn't change the behaviour for arm code.
I also run the following on the command line with the `app_process32` where I found the issue:
**Before:**
```
(lldb) dis -s 0x1640 -e 0x1644
app_process32[0x1640]: .long 0xf0004668 ; unknown opcode
```
**After:**
```
(lldb) dis -s 0x1640 -e 0x1644
app_process32`:
app_process32[0x1640] <+0>: mov r0, sp
app_process32[0x1642]: andeq r0, r0, r0
```
Reviewers: clayborg, labath, wallace, espindola
Subscribers: srhines, emaste, arichardson, kristof.beyls, MaskRay, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68069
llvm-svn: 373680
PyClass_Check and everything it relied on seems gone from Python3.7. So
I won't check whether it is a class first...
Also cleaned up a couple of warnings.
llvm-svn: 373679
This will allow us to write reusable scripted ThreadPlans, since
you can use key/value pairs with known keys in the plan to parametrize
its behavior.
Differential Revision: https://reviews.llvm.org/D68366
llvm-svn: 373675
Use this in the scripted breakpoint command. Added some tests for parsing
the key/value options. This uncovered a bug in handling parsing errors mid-line.
I also fixed that bug.
Differential Revision: https://reviews.llvm.org/D68363
llvm-svn: 373673
There's no need to wrap the just-constructed json::Array in a
json::Value, we can just return that and pass ownership to the
raw_ostream.
llvm-svn: 373656
LLDB handles shell expansion by running lldb-argdumper under a shell.
Currently, this is always /bin/sh on POSIX. This potentially leads to
different behavior between lldb and the user's current shell. Here's an
example of different expansions between shells:
$ /bin/bash -c 'echo -config={Options:[{key:foo_key,value:foo_value}]}'
-config={Options:[key:foo_key]} -config={Options:[value:foo_value]}
$ /bin/zsh -c 'echo -config={Options:[{key:foo_key,value:foo_value}]}'
zsh:1: no matches found: -config={Options:[key:foo_key]}
$ /bin/sh -c 'echo -config={Options:[{key:foo_key,value:foo_value}]}'
-config={Options:[key:foo_key]} -config={Options:[value:foo_value]}
$ /bin/fish -c 'echo -config={Options:[{key:foo_key,value:foo_value}]}'
-config=Options:[key:foo_key] -config=Options:[value:foo_value]
To reduce surprises, this patch returns the user's current shell. It
first looks at the SHELL environment variable. If that isn't set, it'll
ask for the user's default shell. Only if that fails, we'll fallback to
/bin/sh, which should always be available.
Differential revision: https://reviews.llvm.org/D68316
llvm-svn: 373644
Although it's called "GetString", StreamString::GetString actually
returns a StringRef. Creating a json object with a StringRef does not
make a copy, which means the StringRef will be dangling as soon as the
underlying stream is destroyed. Add a .str() to force the json object to
hold a copy of the string.
This fixes nearly every test on linux.
llvm-svn: 373572
Summary:
This patch factors out File as an abstract base
class and moves most of its actual functionality into
a subclass called NativeFile. In the next patch,
I'm going to be adding subclasses of File that
don't necessarily have any connection to actual OS files,
so they will not inherit from NativeFile.
This patch was split out as a prerequisite for
https://reviews.llvm.org/D68188
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68317
llvm-svn: 373564
Summary:
Add new methods to SBDebugger to set IO files as SBFiles instead of
as FILE* streams.
In future commits, the FILE* methods will be deprecated and these
will become the primary way to set the debugger I/O streams.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68181
llvm-svn: 373563
Summary:
SBFile is a scripting API wrapper for lldb_private::File
This is the first step in a project to enable arbitrary python
io.IOBase file objects -- including those that override the read()
and write() methods -- to be used as the main debugger IOStreams.
Currently this is impossible because python file objects must first
be converted into FILE* streams by SWIG in order to be passed into
the debugger.
full prototype: https://github.com/smoofra/llvm-project/tree/files
Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath
Reviewed By: labath
Subscribers: labath, mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67793
llvm-svn: 373562
This patch is the final step in my quest to get rid of the JSON parser
in LLDB. Vedant's coverage report [1] shows that it was mostly untested.
Furthermore, the LLVM implementation has a much nicer API and using it
means one less thing to maintain for LLDB.
[1] http://lab.llvm.org:8080/coverage/coverage-reports/index.html
Differential revision: https://reviews.llvm.org/D68305
llvm-svn: 373501
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationServerCommon.
Differential revision: https://reviews.llvm.org/D68304
llvm-svn: 373500
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationServerPlatform.
Differential revision: https://reviews.llvm.org/D68302
llvm-svn: 373499
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationClient.
Differential revision: https://reviews.llvm.org/D68301
llvm-svn: 373498
This patch replaces the LLDB's JSON implementation with the one from
LLVM in GDBRemoteCommunicationServerLLGS.
Differential revision: https://reviews.llvm.org/D68299
llvm-svn: 373497
This makes sure that we associate DIEs that are imported from other CUs with the appropriate decl context.
Without this fix, nested classes can be dumped directly into their CU context if their parent was imported from another CU.
Reviewed By: teemperor, labath
Differential Revision: https://reviews.llvm.org/D68278
Patch by Jaroslav Sevcik!
llvm-svn: 373470
We now only use this function directly after initialization. As Clear()
resets the ASTContext back to its initial state, this is just a no-op.
There are no other users for this and we no longer can set the ASTContext
after construction, so Clear has no useful purpose anymore. It's also
mostly copy-pasted from Finalize().
llvm-svn: 373460
Reason for this patch is the Ssame reason as for the previous patches:
Having a ClangASTContext and being able to switch the associated ASTContext isn't
a use case we have (or should have), so let's simplify all this code.
This way it becomes clearer in what order we initialize data structures.
The DWARFASTParserClangTests changes are necessary as the test is using
a ClangASTContext but relied on the fact that no called function ever calls
getASTContext() on our ClangASTContext (as that would create the ASTContext).
As we now always create the ASTContext the fact that we had an uninitialized
FileSystem made the test crash.
llvm-svn: 373457
This patch replaces the hand-rolled JSON decoding in StructuredData with
LLVM's JSON library.
Differential revision: https://reviews.llvm.org/D68282
llvm-svn: 373360
This patch replaces the hand-rolled JSON emission in StructuredData with
LLVM's JSON library.
Differential revision: https://reviews.llvm.org/D68248
llvm-svn: 373359
Dimitry Andric