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* proc: support new Go 1.17 panic/defer mechanism Go 1.17 will create wrappers for deferred calls that take arguments. Change defer reading code so that wrappers are automatically unwrapped. Also the deferred function is called directly by runtime.gopanic, without going through runtime.callN which means that sometimes when a panic happens the stack is either: 0. deferred function call 1. deferred call wrapper 2. runtime.gopanic or: 0. deferred function call 1. runtime.gopanic instead of always being: 0. deferred function call 1. runtime.callN 2. runtime.gopanic the isPanicCall check is changed accordingly. * test: miscellaneous minor test fixes for Go 1.17 * proc: resolve inlined calls when stepping out of runtime.breakpoint Calls to runtime.Breakpoint are inlined in Go 1.17 when inlining is enabled, resolve inlined calls in stepInstructionOut. * proc: add support for debugCallV2 with regabi This change adds support for the new debug call protocol which had to change for the new register ABI introduced in Go 1.17. Summary of changes: - Abstracts over the debug call version depending on the Go version found in the binary. - Uses R12 instead of RAX as the debug protocol register when the binary is from Go 1.17 or later. - Creates a variable directly from the DWARF entry for function arguments to support passing arguments however the ABI expects. - Computes a very conservative stack frame size for the call when injecting a call into a Go process whose version is >=1.17. Co-authored-by: Michael Anthony Knyszek <mknyszek@google.com> Co-authored-by: Alessandro Arzilli <alessandro.arzilli@gmail.com> * TeamCity: enable tests on go-tip * goversion: version compatibility bump * TeamCity: fix go-tip builds on macOS/arm64 Co-authored-by: Michael Anthony Knyszek <mknyszek@google.com> |
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About Delve
Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out of your way as much as possible.