Commit Graph

44 Commits

Author SHA1 Message Date
Raphael Isemann 76e47d4887 [lldb][NFC] Use C++ versions of the deprecated C standard library headers
The C headers are deprecated so as requested in D102845, this is replacing them
all with their (not deprecated) C++ equivalent.

Reviewed By: shafik

Differential Revision: https://reviews.llvm.org/D103084
2021-05-26 12:46:12 +02:00
Jonas Devlieghere 98e50a7d4c [lldb] Honor the CPU type & subtype when launching on macOS
Honor the CPU type (and subtype) when launching the inferior on macOS.

Part of this functionality was thought to be no longer needed and
removed in 85bd436961, however it's still
needed, for example to launch binaries under Rosetta 2 on Apple Silicon.

This patch will use posix_spawnattr_setarchpref_np if available and
fallback to posix_spawnattr_setbinpref_np if not.

Differential revision: https://reviews.llvm.org/D95922
2021-02-03 13:42:00 -08:00
Med Ismail Bennani addb5148f5 [lldb/Target] Add custom interpreter option to `platform shell`
This patch adds the ability to use a custom interpreter with the
`platform shell` command. If the user set the `-s|--shell` option
with the path to a binary, lldb passes it down to the platform's
`RunShellProcess` method and set it as the shell to use in
`ProcessLaunchInfo to run commands.

Note that not all the Platforms support running shell commands with
custom interpreters (i.e. RemoteGDBServer is only expected to use the
default shell).

This patch also makes some refactoring and cleanups, like swapping
CString for StringRef when possible and updating `SBPlatformShellCommand`
with new methods and a new constructor.

rdar://67759256

Differential Revision: https://reviews.llvm.org/D86667

Signed-off-by: Med Ismail Bennani <medismail.bennani@gmail.com>
2020-09-02 16:36:10 +02:00
Jonas Devlieghere 249a1d4f1b [lldb] Add an option to inherit TCC permissions from parent.
Add an option that allows the user to decide to not make the inferior is
responsible for its own TCC permissions. If you don't make the inferior
responsible, it inherits the permissions of its parent. The motivation
is the scenario of running the LLDB test suite from an external hard
drive. If the inferior is responsible, every test needs to be granted
access to the external volume. When the permissions are inherited,
approval needs to be granted only once.

Differential revision: https://reviews.llvm.org/D85237
2020-08-05 10:08:28 -07:00
Jonas Devlieghere 041c7b84a4 [lldb/Host] Upstream macOS TCC code
Upstream the code for dealing with TCC introduced in macOS Mojave. This
will make the debuggee instead of the debugger responsible for the
privileges it needs.

Differential revision: https://reviews.llvm.org/D85217
2020-08-04 09:23:54 -07:00
Davide Italiano b4fdddf971 [Apple Silicon] Debugging of process under Rosetta is supported.
Remove this early exit. It's vestigial from the ppc -> Intel transition,
but it doesn't apply anymore.
2020-06-24 12:25:01 -07:00
Vedant Kumar f203100ebe Reapply: [Host.mm] Check for the right macro instead of inlining it
Previously, this was reverted in bf65f19b becuase it checked whether
TARGET_OS_EMBEDDED is defined, but that macro is always defined.

Update the condition to check that TARGET_OS_OSX is true.
2020-04-01 15:23:07 -07:00
Davide Italiano 85bd436961 [Host] Remove some code that's not needed anymore.
Discussed offline with Jason.
2020-03-18 14:44:53 -07:00
Jonas Devlieghere 2451cbf07b [lldb/Reproducers] Intercept the FindProcesses API
This patch extends the reproducers to intercept calls to FindProcesses.
During capture it serializes the ProcessInstanceInfoList returned by the
API. During replay, it returns the serialized data instead of querying
the host.

The motivation for this patch is supporting the process attach workflow
during replay. Without this change it would incorrectly look for the
inferior on the host during replay and failing if no matching process
was found.

Differential revision: https://reviews.llvm.org/D75877
2020-03-13 09:31:35 -07:00
Jonas Devlieghere 638b06cf29 [lldb/Utility] Replace ProcessInstanceInfoList with std::vector. (NFCI)
Replace ProcessInstanceInfoList with std::vector<ProcessInstanceInfo>
and update the call sites.
2020-03-12 14:10:25 -07:00
Vedant Kumar bf65f19bce Revert "[Host.mm] Check for the right macro instead of inlining it"
This breaks macOS, because TARGET_OS_EMBEDDED is always defined. Thanks
to Jason Molenda for pointing this out.

Revert "Do not define AcceptPIDFromInferior when it will not be used"

This reverts commit d23c15a687.
This reverts commit 936d1427da.
2020-02-10 14:34:48 -08:00
Vedant Kumar d23c15a687 Do not define AcceptPIDFromInferior when it will not be used 2020-02-10 12:06:46 -08:00
Vedant Kumar 936d1427da [Host.mm] Check for the right macro instead of inlining it
Differential Revision: https://reviews.llvm.org/D73938
2020-02-10 10:06:40 -08:00
Jason Molenda 83a131b276 Fix an over-suspend bug with LaunchInNewTerminalWithAppleScript sessions
When launching an inferior in a new terminal window via AppleScript
and the darwin-debug helper program, we could often end up with the
inferior process having a too-high suspend count, and it would never
resume execution.

lldb tries to wait until darwin-debug has finished its work and has
launched the inferior (WaitForProcessToSIGSTOP) but this wasn't
working correctly - and cannot be made to work.

This patch removes WaitForProcessToSIGSTOP, adds a special tiny
segment to the darwin-debug executable so it can be identified as
that binary (ExecExtraSuspend), and adds code to debugserver to
detect this segment.  When debugserver sees this segment, it notes
that the next exec will be done with a launch-suspended flag.  When
the next exec happens, debugserver forces an extra task_resume when
we resume the inferior.

An alternative approach would be if lldb could detect when the
inferior has been launched by darwin-debug unambiguously; monitoring
when the unix socket between darwin-debug and lldb was closed would
have been a reasonable way to do this too.

<rdar://problem/29760580>

Differential Revision: https://reviews.llvm.org/D72963
2020-01-21 14:55:46 -08:00
Raphael Isemann 65fdb34219 [lldb][NFC] Use static_cast instead of reinterpret_cast where possible
Summary: There are a few places in LLDB where we do a `reinterpret_cast` for conversions that we could also do with `static_cast`. This patch moves all this code to `static_cast`.

Reviewers: shafik, JDevlieghere, labath

Reviewed By: labath

Subscribers: arphaman, usaxena95, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D72161
2020-01-07 13:03:56 +01:00
Raphael Isemann 5e71356393 [lldb] Fix macOS build by replacing nullptr with FileSpec()
Before we had a implicit conversion from nullptr to FileSpec
which was thankfully removed.
2019-12-04 14:37:10 +01:00
Jason Molenda 7dd7a36075 Add arm64_32 support to lldb, an ILP32 codegen
that runs on arm64 ISA targets, specifically 
Apple watches.


Differential Revision: https://reviews.llvm.org/D68858

llvm-svn: 375032
2019-10-16 19:14:49 +00:00
Pavel Labath a8b18baa0f ProcessInstanceInfoMatch: Don't match processes with no name if a name match was requested, take 2
Summary:
The previous attempt at making nameless process not match when searching for a
given name failed because the macos implementation was depending on this detail
in its partial matching strategy. Doing partial matching to avoid expensive
lookups is a perfectly valid thing to do, the way it was implemented seems
somewhat unexpected.

This patch implements it differently by providing special
methods in the ProcessInstanceInfoMatch which match only a subset of fields,
and changes mac host code to use those instead.

Then, it re-applies r373925 to get make the ProcessInstanceInfoMatch with a
name *not* match a nameless process.

Reviewers: JDevlieghere, teemperor, jingham

Subscribers: wallace, lldb-commits

Differential Revision: https://reviews.llvm.org/D68631

llvm-svn: 374529
2019-10-11 10:56:54 +00:00
Jonas Devlieghere 2a711814b0 [Host] Return status directly from RunShellCommand
Thanks for catching this, Pavel!

llvm-svn: 373783
2019-10-04 19:54:45 +00:00
Jonas Devlieghere a8c04469e5 [Host] Don't discard return value from RunShellCommand
The recent change to expand arguments with the user's shell sometimes
caused a timeout and the error was not propagated.

llvm-svn: 373776
2019-10-04 19:37:46 +00:00
Davide Italiano 3c1084373d [ARM64] XPC services are unsupported on device.
While around, clean up support for a 8 years old OS.

<rdar://problem/55916729>

llvm-svn: 373510
2019-10-02 19:20:24 +00:00
Jonas Devlieghere e0ea8d87eb [Utility] Replace `lldb_private::CleanUp` by `llvm::scope_exit`
This removes the CleanUp class and replaces its usages with llvm's
ScopeExit, which has similar semantics.

Differential revision: https://reviews.llvm.org/D67378

llvm-svn: 371474
2019-09-10 00:20:50 +00:00
Jonas Devlieghere 63e5fb76ec [Logging] Replace Log::Printf with LLDB_LOG macro (NFC)
This patch replaces explicit calls to log::Printf with the new LLDB_LOGF
macro. The macro is similar to LLDB_LOG but supports printf-style format
strings, instead of formatv-style format strings.

So instead of writing:

  if (log)
    log->Printf("%s\n", str);

You'd write:

  LLDB_LOG(log, "%s\n", str);

This change was done mechanically with the command below. I replaced the
spurious if-checks with vim, since I know how to do multi-line
replacements with it.

  find . -type f -name '*.cpp' -exec \
  sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" +

Differential revision: https://reviews.llvm.org/D65128

llvm-svn: 366936
2019-07-24 17:56:10 +00:00
Jonas Devlieghere 2734f5c89c [Host] Fix out-of-line definition of StartMonitoringChildProcess
llvm-svn: 365344
2019-07-08 16:31:37 +00:00
Jonas Devlieghere f39c2e188d Change LaunchThread interface to return an expected.
Change the interface to return an expected, instead of taking a Status
pointer.

Differential revision: https://reviews.llvm.org/D64163

llvm-svn: 365226
2019-07-05 17:42:08 +00:00
Jonas Devlieghere 09ad8c8f73 Fix integer literals which are cast to bool
This change replaces built-in types that are implicitly converted to
booleans.

Differential revision: https://reviews.llvm.org/D62284

llvm-svn: 361580
2019-05-24 00:44:33 +00:00
Adrian Prantl b1a5d7d5a8 Hide stderr output from lldb-argdumper
Under very specific circumstances the default shell /bin/sh might
print stuff to stderr before launching lldb-argdumper, which then
confuses the JSON parser. This patch suppresses stderr output from
lldb-argdumper to avoid this situation.

rdar://problem/50149390

Differential Revision: https://reviews.llvm.org/D61101

llvm-svn: 359156
2019-04-24 23:52:27 +00:00
Zachary Turner 805e71060e Move ProcessInfo from Host to Utility.
There are set of classes in Target that describe the parameters of a
process - e.g. it's PID, name, user id, and similar. However, since it
is a bare description of a process and contains no actual functionality,
there's nothing specifically that makes this appropriate for being in
Target -- it could just as well be describing a process on the host, or
some hypothetical virtual process that doesn't even exist.

To cement this, I'm moving these classes to Utility. It's possible that
we can find a better place for it in the future, but as it is neither
Host specific nor Target specific, Utility seems like the most appropriate
place for the time being.

After this there is only 2 remaining references to Target from Host,
which I'll address in a followup.

Differential Revision: https://reviews.llvm.org/D58842

llvm-svn: 355342
2019-03-04 21:51:03 +00:00
Pavel Labath eef758e949 Move FileAction, ProcessInfo and ProcessLaunchInfo from Target to Host
Summary:
These classes describe the details of the process we are about to
launch, and so they are naturally used by the launching code in the Host
module. Previously they were present in Target because that is the most
important (but by far not the only) user of the launching code.

Since the launching code has other customers, must of which do not care
about Targets, it makes sense to move these classes to the Host layer,
next to the launching code.

This move reduces the number of times that Target is included from host
to 8 (it used to be 14).

Reviewers: zturner, clayborg, jingham, davide, teemperor

Subscribers: emaste, mgorny, lldb-commits

Differential Revision: https://reviews.llvm.org/D56602

llvm-svn: 353047
2019-02-04 14:28:08 +00:00
Jonas Devlieghere 46575176e9 [Reproducers] Add file provider
This patch adds the file provider which is responsible for capturing
files used by LLDB.

When capturing a reproducer, we use a file collector that is very
similar to the one used in clang. For every file that we touch, we add
an entry with a mapping from its virtual to its real path. When we
decide to generate a reproducer we copy over the files and their
permission into to reproducer folder.

When replaying a reproducer, we load the VFS mapping and instantiate a
RedirectingFileSystem. The latter will transparently use the files
available in the reproducer.

I've tested this on two macOS machines with an artificial example.
Still, it is very likely that I missed some places where we (still) use
native file system calls. I'm hoping to flesh those out while testing
with more advanced examples. However, I will fix those things in
separate patches.

Differential revision: https://reviews.llvm.org/D54617

llvm-svn: 352538
2019-01-29 20:36:38 +00:00
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Jonas Devlieghere 34fb64d661 Fix stack-buffer-overflow in lldb_private::Host::FindProcesses (2/2)
This fixes the second call at line 640 that I missed in r349858.

llvm-svn: 349869
2018-12-21 01:22:58 +00:00
Jonas Devlieghere 6679bc15ca Fix stack-buffer-overflow in lldb_private::Host::FindProcesses
Found by the address sanitizer on GreenDragon:
http://green.lab.llvm.org/green/view/LLDB/job/lldb-sanitized/1628/console

llvm-svn: 349858
2018-12-20 23:45:26 +00:00
Jonas Devlieghere a6682a413d Simplify Boolean expressions
This patch simplifies boolean expressions acorss LLDB. It was generated
using clang-tidy with the following command:

run-clang-tidy.py -checks='-*,readability-simplify-boolean-expr' -format -fix $PWD

Differential revision: https://reviews.llvm.org/D55584

llvm-svn: 349215
2018-12-15 00:15:33 +00:00
Jonas Devlieghere 046c390356 [Host] Use FileSystem wrapper
Fixes Host.mm to use the FileSystem class instead of making native calls
to check if a file exists.

llvm-svn: 348779
2018-12-10 18:17:39 +00:00
Jonas Devlieghere 3a58d89819 [FileSystem] Add convenience method to check for directories.
Replace calls to LLVM's is_directory with calls to LLDB's FileSytem
class. For this I introduced a new convenience method that, like the
other methods, takes either a path or filespec. This still uses the LLVM
functions under the hood.

Differential revision: https://reviews.llvm.org/D54135

llvm-svn: 346375
2018-11-08 00:14:50 +00:00
Jonas Devlieghere 8f3be7a32b [FileSystem] Move path resolution logic out of FileSpec
This patch removes the logic for resolving paths out of FileSpec and
updates call sites to rely on the FileSystem class instead.

Differential revision: https://reviews.llvm.org/D53915

llvm-svn: 345890
2018-11-01 21:05:36 +00:00
Jonas Devlieghere dbd7fabaa0 [FileSystem] Remove Exists() from FileSpec
This patch removes the Exists method from FileSpec and updates its uses
with calls to the FileSystem.

Differential revision: https://reviews.llvm.org/D53845

llvm-svn: 345854
2018-11-01 17:09:25 +00:00
Jonas Devlieghere 2c22c800a0 [FileSystem] Remove ResolveExecutableLocation() from FileSpec
This patch removes the ResolveExecutableLocation method from FileSpec
and updates its uses with calls to the FileSystem.

Differential revision: https://reviews.llvm.org/D53834

llvm-svn: 345853
2018-11-01 17:09:22 +00:00
Pavel Labath 60f028ff03 Replace HostInfo::GetLLDBPath with specific functions
Summary:
Instead of a function taking an enum value determining which path to
return, we now have a suite of functions, each returning a single path
kind. This makes it easy to move the python-path function into a
specific plugin in a follow-up commit.

All the users of GetLLDBPath were converted to call specific functions
instead. Most of them were hard-coding the enum value anyway, so this
conversion was simple. The only exception was SBHostOS, which I've
changed to use a switch on the incoming enum value.

Reviewers: clayborg, zturner

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D48272

llvm-svn: 335052
2018-06-19 15:09:07 +00:00
Pavel Labath 6682979c04 Fix macosx build broken by the VersionTuple refactor
I actually did check that macos builds before committing, but this error
was in conditionally compiled code that did not seem to be used on my
machine.

I also fix a typo in the previous speculative NetBSD patch.

llvm-svn: 334955
2018-06-18 16:10:20 +00:00
Jonas Devlieghere 937348cd13 [FileSpec] Make style argument mandatory for SetFile. NFC
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
2018-06-13 22:08:14 +00:00
Jason Molenda 07570f55e4 Fix macos xcode build.
llvm-svn: 334662
2018-06-13 22:05:38 +00:00
Raphael Isemann 2c77eefe85 Add modules support for lldb headers in include/
Summary:
This patch adds a modulemap which allows compiling the lldb headers into C++ modules
(for example in builds with LLVM_ENABLE_MODULES=On).

Even though most of the affected code has been cleaned up to work with the more strict
C++ module semantics, there are still some workarounds left in the current modulemap
(the most obvious one is the big `lldb` wrapper module).

It also moves the Obj-C++ files in lldb to their own subdirectories. This was necessary
because we need to filter out the modules flags for this code.

Note: With the latest clang and libstdc++ it seems necessary to have a STL C++ module
to get a working LLVM_ENABLE_MODULES build for lldb. Otherwise clang will falsely
detect ODR violations in the textually included STL code inside the lldb modules.

Reviewers: aprantl, bruno

Reviewed By: aprantl, bruno

Subscribers: mgorny, yamaguchi, v.g.vassilev, lldb-commits

Differential Revision: https://reviews.llvm.org/D47929

llvm-svn: 334611
2018-06-13 15:50:45 +00:00