1a9e38aa0c
* proc: move defer breakpoint code into a function Moves the code that sets a breakpoint on the first deferred function, used by both next and StepOut, to its function. * proc: implement reverse step/next/stepout When the direction of execution is reversed (on a recording) Step, Next and StepOut will behave similarly to their forward version. However there are some subtle interactions between their behavior, prologue skipping, deferred calls and normal calls. Specifically: - when stepping backwards we need to set a breakpoint on the first instruction after each CALL instruction, once this breakpoint is reached we need to execute a single StepInstruction operation to reverse step into the CALL. - to insure that the prologue is skipped reverse next needs to check if it is on the first instruction after the prologue, and if it is behave like reverse stepout. - there is no reason to set breakpoints on deferred calls when reverse nexting or reverse stepping out, they will never be hit. - reverse step out should generally place its breakpoint on the CALL instruction that created the current stack frame (which will be the CALL instruction immediately preceding the instruction at the return address). - reverse step out needs to treat panic calls and deferreturn calls specially. * service,terminal: implement reverse step, next, stepout
871 B
871 B
Known Bugs
- Delve does not currently support 32bit systems. This will usually manifest as a compiler error in
proc/disasm.go. See Issue #20. - When Delve is compiled with versions of go prior to 1.7.0 it is not possible to set a breakpoint on a function in a remote package using the
Receiver.MethodNamesyntax. See Issue #528. - When running Delve on binaries compiled with a version of go prior to 1.9.0
localswill print all local variables, including ones that are out of scope, the shadowed flag will be applied arbitrarily. If there are multiple variables defined with the same name in the current functionprintwill not be able to select the correct one for the current line. reverse stepwill not reverse step into functions called by deferred calls.