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* pkg/proc: convert freebsd ptrace code to cgo There is little point in having cgo call a custom C function, when the same can be done directly from cgo (with less code and effort). Split the amd64 specific code into ptrace_freebsd_amd64.go. Also avoid mixing C.ptrace() with syscall.SYS_PTRACE. This will make further changes easier - no functional change intended. * pkg/proc: check return values of ptrace calls on freebsd The return values of the PT_GETNUMLWPS and PT_GETLWPLIST ptrace calls were previously unchecked. While these should not fail, panic instead of using -1 with slice allocation/handling. * pkg/proc: return *amd64util.AMD64Xstate from freebsd ptraceGetRegset Return a pointer to a struct, rather than a struct - this simplifies the code in both the caller and the ptraceGetRegset function, while also avoiding struct copying. * pkg/proc: fix floating point register setting on freebsd The original code could never work - PT_SETREGS on freebsd does not take an iovec, nor does it set FP registers. Furthermore, the xsave bytes were not stored in the amd64util.AMD64Xstate struct. Updates #3001 * pkg/proc: re-enable function call injection on freebsd Floating point registers can now be set and restored correctly. This is a partial revert of 51090f003bace1f8cc37b8480ffdb6f6cc91fa5a. Fixes #3001 * pkg/proc: deduplicate register setting code on freebsd |
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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.