- 09 5月, 2019 2 次提交
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由 Alessandro Arzilli 提交于
The initial implementation of the 'call' command required the function call to be the root expression, i.e. something like: double(3) + 1 was not allowed, because the root expression was the binary operator '+', not the function call. With this change expressions like the one above and others are allowed. This is the first step necessary to implement nested function calls (where the result of a function call is used as argument to another function call). This is implemented by replacing proc.CallFunction with proc.EvalExpressionWithCalls. EvalExpressionWithCalls will run proc.(*EvalScope).EvalExpression in a different goroutine. This goroutine, the 'eval' goroutine, will communicate with the main goroutine of the debugger by means of two channels: continueRequest and continueCompleted. The eval goroutine evaluates the expression recursively, when a function call is encountered it takes care of setting up the function call on the target program and writes a request to the continueRequest channel, this causes the 'main' goroutine to restart the target program by calling proc.Continue. Whenever Continue encounters a breakpoint that belongs to the function call injection protocol (runtime.debugCallV1 and associated functions) it writes to continueCompleted which resumes the 'eval' goroutine. The 'eval' goroutine takes care of implementing the function call injection protocol. When the expression is fully evaluated the 'eval' goroutine will write a special message to 'continueRequest' signaling that the expression evaluation is terminated which will cause Continue to return to the user. Updates #119
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由 Alessandro Arzilli 提交于
This change splits the BinaryInfo object into a slice of Image objects containing information about the base executable and each loaded shared library (note: go plugins are shared libraries). Delve backens are supposed to call BinaryInfo.AddImage whenever they detect that a new shared library has been loaded. Member fields of BinaryInfo that are used to speed up access to dwarf (Functions, packageVars, consts, etc...) remain part of BinaryInfo and are updated to reference the correct image object. This simplifies this change. This approach has a few shortcomings: 1. Multiple shared libraries can define functions or globals with the same name and we have no way to disambiguate between them. 2. We don't have a way to handle library unloading. Both of those affect C shared libraries much more than they affect go plugins. Go plugins can't be unloaded at all and a lot of name collisions are prevented by import paths. There's only one problem that is concerning: if two plugins both import the same package they will end up with multiple definition for the same function. For example if two plugins use fmt.Printf the final in-memory image (and therefore our BinaryInfo object) will end up with two copies of fmt.Printf at different memory addresses. If a user types break fmt.Printf a breakpoint should be created at *both* locations. Allowing this is a relatively complex change that should be done in a different PR than this. For this reason I consider this approach an acceptable and sustainable stopgap. Updates #865
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- 27 4月, 2019 2 次提交
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由 Alessandro Arzilli 提交于
Before doing anything check that the version of Go is compatible with the current version of Delve. This will improve the error message in the case that another change as disruptive as Go1.11 dwarf compression, happens.
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由 Alessandro Arzilli 提交于
Go 1.12 introduced a change to the internal map representation where empty map cells can be marked with a tophash value of 1 instead of just 0. Fixes #1531
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- 30 3月, 2019 1 次提交
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由 Alessandro Arzilli 提交于
When we resolve a numerical value to a symbolic constant also report the numerical value, for clarity. Fixes #1516
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- 28 3月, 2019 2 次提交
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由 aarzilli 提交于
Add options to the stack command to read the goroutine ancestors. Ancestor tracking was added to Go 1.12 with CL: https://go-review.googlesource.com/c/go/+/70993/ Implements #1491
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由 Alessandro Arzilli 提交于
* *: use loglevel to control what gets logged instead of output redirection This stops logrus from doing all the formatting just to discard it immediately afterwards. * logflags: replace default formatter of logrus The default formatter of logrus emits logs in two different formats depending on whether or not the output is going to a terminal. The output format for non-terminals is indented to be machine readable, but we mostly read logs ourselves and the excessive quoting makes that format unreadable. When outputting to terminals it uses ANSI escape codes unconditionally, without checking whether the terminal it is connected to actually supports colors. This commit replaces the default formatter with a much simpler formatter that always uses a more readable format, doesn't use colors and places the key-value pairs at the beginning of the line (which is a better match for how we use them). * cmd/dlv: add command line options to redirect logs Adds two options, --log-to-file and --log-to-fd, to redirect logs to a file or to a file descriptor. When one of those two options is specified the "API server listening at:" message will also be redirected to the specified file/file descriptor. This allows clients that want to use the "API server listening at:" message to do so even if they want to redirect the target's stdout to another file or device. Implements #1179, #1523
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- 21 2月, 2019 1 次提交
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由 Derek Parker 提交于
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- 08 1月, 2019 1 次提交
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由 aarzilli 提交于
We forgot to run typecheckrpc.go periodically and it didn't work anymore and there were some minor errors in service/rpc2/client.go. Rewrite typecheckrpc.go using go/packages, so that it works with go1.11 and go.mod, and fix the issues in client.go
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- 05 1月, 2019 1 次提交
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由 Derek Parker 提交于
The repository is being switched from the personal account github.com/derekparker/delve to the organization account github.com/go-delve/delve. This patch updates imports and docs, while preserving things which should not be changed such as my name in the CHANGELOG and in TODO comments.
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- 21 11月, 2018 2 次提交
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由 aarzilli 提交于
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由 aarzilli 提交于
It was never true that return variables were in the inverse order. Instead in Go1.11 return variables are saved in debug_info in an arbitrary order and inverting them just happened to work for this specific example. This bug was fixed in Go 1.12, regardless we should attempt to rearrange return variables anyway.
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- 20 11月, 2018 1 次提交
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由 Sergio Lopez 提交于
Instead of unconditionally returning all present goroutines, GoroutinesInfo now allows specifying a range (start and count). In addition to the array of goroutines and the error, it now also returns the next goroutine to be processed, to be used as 'start' argument on the next call, or 0 if all present goroutines have already been processed. This way clients can avoid eating large amounts of RAM while debugging core dumps and processes with a exceptionally high amount of goroutines. Fixes #1403
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- 10 11月, 2018 1 次提交
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由 aarzilli 提交于
Users can create sparse maps in two ways, either by: a) adding lots of entries to a map and then deleting most of them, or b) using the make(mapType, N) expression with a very large N When this happens reading the resulting map will be very slow because loadMap needs to scan many buckets for each entry it finds. Technically this is not a bug, the user just created a map that's very sparse and therefore very slow to read. However it's very annoying to have the debugger hang for several seconds when trying to read the local variables just because one of them (which you might not even be interested into) happens to be a very sparse map. There is an easy mitigation to this problem: not reading any additional buckets once we know that we have already read all entries of the map, or as many entries as we need to fulfill the MaxArrayValues parameter. Unfortunately this is mostly useless, a VLSM (Very Large Sparse Map) with a single entry will still be slow to access, because the single entry in the map could easily end up in the last bucket. The obvious solution to this problem is to set a limit to the number of buckets we read when loading a map. However there is no good way to set this limit. If we hardcode it there will be no way to print maps that are beyond whatever limit we pick. We could let users (or clients) specify it but the meaning of such knob would be arcane and they would have no way of picking a good value (because there is no objectively good value for it). The solution used in this commit is to set an arbirtray limit on the number of buckets we read but only when loadMap is invoked through API calls ListLocalVars and ListFunctionArgs. In this way `ListLocalVars` and `ListFunctionArgs` (which are often invoked automatically by GUI clients) remain fast even in presence of a VLSM, but the contents of the VLSM can still be inspected using `EvalVariable`.
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- 09 11月, 2018 1 次提交
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由 Derek Parker 提交于
Adds a config file option to allow specifying a list of directories to search in when looking for seperate external debug info files. Fixes #1353
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- 07 11月, 2018 1 次提交
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由 aarzilli 提交于
Some tests used a fake vendor directory placed inside _fixtures to import some support packages. In go.mod mode vendor directory are only supported on the root of the project, which breaks some of our tests. Since vendor directories outside the root of the project are so rare anyway it's possible that a future version of go will stop supporting it even in GOPATH mode. Also it was weird and unnecessary in the first place anyawy.
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- 16 10月, 2018 3 次提交
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由 aarzilli 提交于
Add ability to evaluate variables on the scope of a deferred call's argument frame.
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由 aarzilli 提交于
Fix escape checking in function calls and add a flag to disable it.
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由 chainhelen 提交于
Extend `string()` 1.convert `byte/rune array`(not only `slice`) to string. 2.convert string to string(itself), just like `string(str)` in go language.
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- 12 10月, 2018 1 次提交
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由 aarzilli 提交于
Support for position independent executables (PIE) on the native linux backend, the gdbserver backend on linux and the core backend. Also implemented in the windows native backend, but it can't be tested because go doesn't support PIE on windows yet.
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- 09 10月, 2018 1 次提交
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由 aarzilli 提交于
Replace the socket connection with an in-memory connection (created by net.Pipe) for non-headless uses of delve. This is faster and more secure. Fixes #1332
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- 03 10月, 2018 1 次提交
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由 aarzilli 提交于
On macOS 10.14 Apple changed the command line tools so that system headers now need to be manually installed. Instead of adding one extra install step to the install procedure add a build tag to allow compilation of delve without the native backend on macOS. By default (i.e. when using `go get`) this is how delve will be compiled on macOS, the make script is changed to enable compiling the native backend if the required dependencies have been installed. Insure that both configuration still build correctly on Travis CI and change the documentation to describe how to compile the native backend and that it isn't normally needed. Fixes #1359
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- 28 9月, 2018 1 次提交
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由 aarzilli 提交于
With this syntax users do not need to type the concrete type of an interface variable to access its contents. This also sidesteps the problem where the serialization of a type by go/printer is different from the one used for debug_info type names. Updates #1328
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- 26 9月, 2018 1 次提交
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由 aarzilli 提交于
Go allows converting a single integer value to string, resulting in a string containing a single unicode rune with the same code as the value of the integer. Allow the same conversion to happen. Fixes #1322
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- 20 9月, 2018 1 次提交
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由 chainhelen 提交于
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- 30 8月, 2018 1 次提交
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由 aarzilli 提交于
Normally variables that have a named struct as a type will get a typedef entry as their type, sometimes however the Go linker will decide to use the DW_TAG_structure_type entry instead. For consistency always wrap a struct type into a typedef when we are creating a new variables (see comment in newVariable for exceptions). This fixes a bug where it would be impossible to call methods on a global variable.
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- 17 8月, 2018 3 次提交
- 16 8月, 2018 2 次提交
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由 aarzilli 提交于
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由 aarzilli 提交于
Changes (*Variable).setValue so that it can be used in CallFunction to set up the argument frame for the function call, adding the ability to: - nil nillable types - set strings to the empty string - copy from one structure to another (including strings and slices) - convert any interface type to interface{} - convert pointer shaped types (map, chan, pointers, and structs consisting of a single pointer field) to interface{} This covers all cases where an assignment statement can be evaluated without allocating memory or calling functions in the target process.
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- 25 7月, 2018 1 次提交
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由 aarzilli 提交于
Adds -defer flag to the stack command that decorates the stack traces by associating each stack frame with its deferred calls. Reworks proc.next to use this feature instead of using proc.DeferPC, laying the groundwork to implement #1240.
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- 14 7月, 2018 1 次提交
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由 aarzilli 提交于
Implements the function call injection protocol introduced in go 1.11 by https://go-review.googlesource.com/c/go/+/109699. This is only the basic support, see TODO comments in pkg/proc/fncall.go for a list of missing features. Updates #119
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- 27 6月, 2018 1 次提交
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由 aarzilli 提交于
This pull request makes several changes to delve to allow headless instancess that are started with the --accept-multiclient flag to keep running even if there is no connected client. Specifically: 1. Makes a headless instance started with --accept-multiclient quit after one of the clients sends a Detach request (previously they would never ever quit, which was a bug). 2. Changes proc/gdbserial and proc/native so that they mark the Process as exited after they detach, even if they did not kill the process during detach. This prevents bugs such as #1231 where we attempt to manipulate a target process after we detached from it. 3. On non --accept-multiclient instances do not kill the target process unless we started it or the client specifically requests it (previously if the client did not Detach before closing the connection we would kill the target process unconditionally) 4. Add a -c option to the quit command that detaches from the headless server after restarting the target. 5. Change terminal so that, when attached to --accept-multiclient, pressing ^C will prompt the user to either disconnect from the server or pause the target process. Also extend the exit prompt to ask if the user wants to keep the headless server running. Implements #245, #952, #1159, #1231
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- 22 6月, 2018 1 次提交
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由 Derek Parker 提交于
Implements structured logging via Logrus. This gives us a logger per boundry that we care about, allowing for easier parsing of logs if users have more than one log option enabled. Also, cleans up a lot of conditionals in the code by simply silencing the logger at creation as opposed to conditionally logging everywhere.
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- 15 6月, 2018 1 次提交
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由 aarzilli 提交于
If the application being debugged imports two packages with the same name (but different paths) there was no way to disambiguate the two, since the character '/' can not appear inside a go identifier. By allowing users to use a string literal as the package name a package path can be specified.
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- 12 6月, 2018 1 次提交
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由 aarzilli 提交于
Displays the return values of the current function when we step out of it after executing a step, next or stepout command. Implementation of this feature is tricky: when the function has returned the return variables are not in scope anymore. Implementing this feature requires evaluating variables that are out of scope, using a stack frame that doesn't exist anymore. We can't calculate the address of these variables when the next/step/stepout command is initiated either, because between that point and the time where the stepout breakpoint is actually hit the goroutine stack could grow and be moved to a different memory address.
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- 19 5月, 2018 1 次提交
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由 aarzilli 提交于
Change the linux verison of proc/native and proc/gdbserial (with debugserver) so that they let the target process use the terminal when delve is launched in headless mode. Windows already worked, proc/gdbserial (with rr) already worked. I couldn't find a way to make proc/gdbserial (with lldb-server) work. No tests are added because I can't think of a way to test for foregroundness of a process. Fixes #65
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- 20 4月, 2018 1 次提交
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由 aarzilli 提交于
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- 14 4月, 2018 1 次提交
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由 aarzilli 提交于
Change evaluation of binary operators so that both && and || only evaluate their second argument conditionally, like go does.
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