c9c455cc38
* proc: fix stacktraces when a SIGSEGV happens during a cgo call When a SIGSEGV happens in a cgo call (for example as a result of dereferencing a NULL pointer) the stack layout will look like this: (system stack) runtime.fatalthrow (system stack) runtime.throw (system stack) runtime.sigpanic (system stack) offending C function ... other C functions... (system stack) runtime.asmcgocall (goroutine stack) call inside cgo The code in switchStack would switch directly from the runtime.fatalthrow frame to the first frame in the goroutine stack, hiding important information. Disable this switch for runtime.fatalthrow and reintroduce the check for runtime.mstart that existed before this version of the code was implemented in commit 7bec20. This problem was reported in comment: https://github.com/go-delve/delve/issues/935#issuecomment-512182533 * cmd/dlv: actually disable C compiler optimizations when building |
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