Commit Graph

21 Commits

Author SHA1 Message Date
Alessandro Arzilli
a61ccea65a
service/debugger,terminal: API and user interface for follow exec mode (#3286)
Updates #2551
2023-04-24 14:37:31 -07:00
Alessandro Arzilli
6e7e1d8830
proc,terminal: allow setting suspended breakpoints (#3154)
Allows setting suspended breakpoints and try to enable them
automatically after every time a plugin is loaded.

Fixes #1653
Updates #2551
2022-10-04 08:07:05 -07:00
Alessandro Arzilli
ec5fcc07fe
proc,service/debugger: track how breakpoints were originally set (#3148)
Adds field to breakpoint struct to track how a breakpoint was
originally set, moves the logic for disabling and enabling a breakpoint
to proc.
This will allow creating suspended breakpoints that are automatically
enabled when a plugin is loaded. When follow exec mode is implemented
it will also be possible to automatically enable breakpoints (whether
or not they were suspended) on new child processes, as they are
spawned.

It also improves breakpoint restore after a restart, before this after
a restart breakpoints would be re-enabled using their file:line
position, for breakpoints set using a function name or a location
expression this could be the wrong location after a recompile.

Updates #1653
Updates #2551
2022-09-28 11:35:07 -07:00
Morten Linderud
8c392d2fdf
Implement source listing from debuginfo (#2885)
* service: Implement BuildID

Parse the BuildID of executables and provides it over the RPC
service.

Signed-off-by: Morten Linderud <morten@linderud.pw>

* command: Support debuinfod for file listing

Signed-off-by: Morten Linderud <morten@linderud.pw>

* debuginfod: create debuginfod package for common code

We remove the duplicated code and provide our a new debuginfod package.

Signed-off-by: Morten Linderud <morten@linderud.pw>

* starlark: Workaround for 'build_i_d'

Signed-off-by: Morten Linderud <morten@linderud.pw>

* command: Ensure we only overwrite path when one has been found

Signed-off-by: Morten Linderud <morten@linderud.pw>

* bininfo: Inline parseBuildID

Signed-off-by: Morten Linderud <morten@linderud.pw>
2022-01-30 13:39:30 -08:00
Alessandro Arzilli
4264bf00f2
proc,terminal,service: support stack watchpoints (#2521)
* terminal,service: add way to see internal breakpoints

Now that Delve has internal breakpoints that survive for long periods
of time it will be useful to have an option to display them.

* proc,terminal,service: support stack watchpoints

Adds support for watchpoints on stack allocated variables.

When a stack variable is watched, in addition to the normal watchpoint
some support breakpoints are created:

- one breakpoint inside runtime.copystack, used to adjust the address
  of the watchpoint when the stack is resized
- one or more breakpoints used to detect when the stack variable goes
  out of scope, those are similar to the breakpoints set by StepOut.

Implements #279
2021-08-09 10:41:25 -07:00
Derek Parker
10406f96d5
*: Initial eBPF tracing support (#2625) 2021-07-31 17:16:26 +02:00
Alessandro Arzilli
7c82164264
terminal,service: Add filtering and grouping to goroutines command (#2504)
Adds filtering and grouping to the goroutines command.

The current implementation of the goroutines command is modeled after
the threads command of gdb. It works well for programs that have up to
a couple dozen goroutines but becomes unusable quickly after that.

This commit adds the ability to filter and group goroutines by several
different properties, allowing a better debugging experience on
programs that have hundreds or thousands of goroutines.
2021-07-01 11:25:33 -07:00
Alessandro Arzilli
4f11320e4c
terminal,service: add API and commands for watchpoints (#2488)
Adds API calls and terminal commands to set watchpoints.
2021-05-20 10:04:02 -07:00
Álex Sáez
f5d2e132bc
*: Adds toggle command (#2208)
* Adds toggle command

Also adds two rpc2 tests for testing the new functionality

* Removes Debuggers' ToggleBreakpoint method

rpc2's ToggleBreakpoint now calls AmendBreakpoint
Refactors the ClearBreakpoint to avoid a lock.
2021-03-19 11:02:23 -07:00
Alessandro Arzilli
2c1a822632
terminal,service,proc/*: adds dump command (gcore equivalent) (#2173)
* proc/core: off-by-one error reading ELF core files

core.(*splicedMemory).ReadMemory checked the entry interval
erroneously when dealing with contiguous entries.

* terminal,service,proc/*: adds dump command (gcore equivalent)

Adds the `dump` command that creates a core file from the target process.

Backends will need to implement a new, optional, method `MemoryMap` that
returns a list of mapped memory regions.
Additionally the method `DumpProcessNotes` can be implemented to write out
to the core file notes describing the target process and its threads. If
DumpProcessNotes is not implemented `proc.Dump` will write a description of
the process and its threads in a OS/arch-independent format (that only Delve
understands).

Currently only linux/amd64 implements `DumpProcessNotes`.

Core files are only written in ELF, there is no minidump or macho-o writers.

# Conflicts:
#	pkg/proc/proc_test.go
2021-01-29 13:39:33 -08:00
aarzilli
db93049813 service,terminal: apply substitute path to trace/break argument
Change FindLocation to apply substitute path rules to location
expressions. Changes terminal to always print paths after applying
substitutions.

Implements #2203
2020-11-17 16:41:35 +01:00
aarzilli
7555d1c063 cmd,proc,terminal,debugger: Support default file descriptor redirects
Adds features to support default file descriptor redirects for the
target process:

1. A new command line flag '--redirect' and '-r' are added to specify
   file redirects for the target process
2. New syntax is added to the 'restart' command to specify file
   redirects.
3. Interactive instances will check if stdin/stdout and stderr are
   terminals and print a helpful error message if they aren't.
2020-09-01 21:50:27 +02:00
Álex Sáez
95e7cafd0c
terminal/command: Add 'reload' command (#1971)
* terminal/command: Add 'reload' command

These changes add the 'reload' command, which allows us to rebuild the project
and start the debugging session again. Currently, if the project's code is
updated while debugging it, Delve shows the new source code, but it's still
running the old one. With 'reload', the whole binary is rebuilt, and the
process starts again.

Fixes #1551

* Remove unnecessary print

Changes to be committed:
      modified:   pkg/terminal/command.go

* Add tests and refactor the code

Changes to be committed:
      modified:   cmd/dlv/cmds/commands.go
      modified:   go.mod
      modified:   pkg/terminal/command.go
      modified:   service/config.go
      modified:   service/debugger/debugger.go
      modified:   service/test/integration2_test.go

* Fix typo in the comment

Changes to be committed:
      modified:   service/debugger/debugger.go

* Fix typo in the name of the variables

The variables are local therefore the capitalization is not needed

Changes to be committed:
      modified:   cmd/dlv/cmds/commands.go

* Call GoTestBuild

Also, remove the := to avoid redeclaration

* Change the Kind in the tests

Change from debugger.ExecutingGeneratedTest to
debugger.ExecutingGeneratedFile for consistency.
We are generating a real binary instead of a test
one so ExecutingGeneratedFile makes more sense here.

Changes to be committed:
      modified:   service/test/integration2_test.go

* Avoid breakpoints based on addresses

Changes to be committed:
      modified:   service/debugger/debugger.go

* Update the rebuild behaviour

There are a few cases where we can't rebuild the binary because we don't
know how it was build.

Changes to be committed:
      modified:   service/debugger/debugger.go

* Fix typos and update documentation

Changes to be committed:
      modified:   Documentation/cli/README.md
      modified:   pkg/terminal/command.go
      modified:   service/config.go
      modified:   service/debugger/debugger.go

* Fix typo

* Remove variables

They were added to the debugger.Config

* Rename variable

Rename Kind to ExecuteKind to make it more accurate

Changes to be committed:
      modified:   cmd/dlv/cmds/commands.go
      modified:   service/debugger/debugger.go
      modified:   service/test/integration2_test.go
2020-06-05 11:03:09 -07:00
Derek Parker
85c34e47ee *: mv scripts _scripts
Instead of selectively excluding this directory, hide it from the go
tooling by applying the "_" prefix.
2020-03-28 20:28:51 +01:00
Alessandro Arzilli
d925f6b719
proc,service: allow printing registers for arbitrary frames (#1875)
Adds an optional scope prefix to the `regs` command which allows
printing registers for any stack frame (as long as they were somehow
saved). Issue #1838 is not yet to be closed since we are still not
recovering the registers of a segfaulting frame.

Updates #1838
2020-02-24 10:47:02 -08:00
chainhelen
a5d9dbee79
pkg,service: add cmd examinemem(x) for examining memory. (#1814)
According to #1800 #1584 #1038, `dlv` should enable the user to dive into
memory. User can print binary data in specific memory address range.
But not support for sepecific variable name or structures temporarily.(Because
I have no idea that modify `print` command.)

Close #1584.
2020-02-13 09:29:21 -08:00
aarzilli
a8606afb0b proc,service: return build informations for each package
Adds an API call that returns a list of packages contained in the
program and the files that were used to build them, and also a best
guess at which filesystem directory contained the package when it was
built.

This can be used by IDEs to map file paths if the debugging environment
doesn't match the build environment exactly.
2020-01-09 20:19:02 +01:00
Alessandro Arzilli
ccf57b9454 terminal: let 'list' work on file:line exprs that don't map to code (#1728)
Make the 'list' command succeed for file:line expressions that don't
map to any instruction.
Adds an argument to the FindLocations API call that makes FindLocations
return if the expression can be parsed, even if it doesn't end up
matching any instruction in debug_line.
2019-10-25 09:59:18 -07:00
Alessandro Arzilli
6b20e880e2 *: add option to re-record recorded targets (#1702)
Adds a '-r' option to the 'restart' command (and to the Restart API)
that re-records the target when using rr.

Also moves the code to delete the trace directory inside the gdbserial
package.
2019-10-21 11:48:04 -07:00
Alessandro Arzilli
efd628616b proc: add options to bypass smart stacktraces (#1686)
Add options to start a stacktrace from the values saved in the
runtime.g struct as well as a way to disable the stackSwitch logic and
just get a normal stacktrace.
2019-09-25 10:21:20 -07:00
Alessandro Arzilli
ed35dce7a3 terminal: adds embedded scripting language (#1466)
If the argument of 'source' ends in '.star' it will be interpreted as a
starlark script.
If the argument of 'source' is '-' an interactive starlark repl will be
started.

For documentation on how the starlark execution environment works see
Documentation/cli/starlark.md.

The starlark API is autogenerated from the JSON-RPC API by
script/gen-starlark-bindings.go.
In general for each JSON-RPC API a single global starlark function is
created.
When one of those functions is called (through a starlark script) the
arguments are converted to go structs using reflection. See
unmarshalStarlarkValue in pkg/terminal/starbind/conv.go.
If there are no type conversion errors the JSON-RPC call is executed.
The return value of the JSON-RPC call is converted back into a starlark
value by interfaceToStarlarkValue (same file):

* primitive types (such as integers, floats or strings) are converted
  by creating the corresponding starlark value.
* compound types (such as structs and slices) are converted by wrapping
  their reflect.Value object into a type that implements the relevant
  starlark interfaces.
* api.Variables are treated specially so that their Value field can be
  of the proper type instead of always being a string.

Implements #1415, #1443
2019-07-02 10:55:27 -07:00